Mercurial > hg > octave-nkf
changeset 15648:d49e99269c0b
Renamed SessionView in TerminalView and correct proxy focus for QTerminal.
author | Jacob Dawid <jacob.dawid@googlemail.com> |
---|---|
date | Fri, 27 Jan 2012 23:44:07 +0100 |
parents | a044a259c423 |
children | c22fa57226b2 |
files | libqterminal/QTerminal.cpp libqterminal/QTerminal.h libqterminal/SessionView.cpp libqterminal/SessionView.h libqterminal/TerminalModel.cpp libqterminal/TerminalModel.h libqterminal/TerminalView.cpp libqterminal/TerminalView.h libqterminal/libqterminal.pro |
diffstat | 9 files changed, 3492 insertions(+), 3493 deletions(-) [+] |
line wrap: on
line diff
--- a/libqterminal/QTerminal.cpp +++ b/libqterminal/QTerminal.cpp @@ -50,10 +50,10 @@ m_sessionModel->setDarkBackground(true); m_sessionModel->setKeyBindings(""); - m_sessionView = new SessionView(this); - m_sessionView->setBellMode(SessionView::NotifyBell); + m_sessionView = new TerminalView(this); + m_sessionView->setBellMode(TerminalView::NotifyBell); m_sessionView->setTerminalSizeHint(true); - m_sessionView->setTripleClickMode(SessionView::SelectWholeLine); + m_sessionView->setTripleClickMode(TerminalView::SelectWholeLine); m_sessionView->setTerminalSizeStartup(true); m_sessionView->setSize(80, 40); @@ -65,9 +65,10 @@ m_sessionModel->run(); m_sessionModel->addView(m_sessionView); - m_sessionView->setScrollBarPosition(SessionView::ScrollBarRight); + m_sessionView->setScrollBarPosition(TerminalView::ScrollBarRight); connect(m_sessionModel, SIGNAL(finished()), this, SLOT(sessionFinished())); + setFocusProxy(m_sessionView); } QTerminal::~QTerminal()
--- a/libqterminal/QTerminal.h +++ b/libqterminal/QTerminal.h @@ -23,7 +23,7 @@ #include <QtGui> #include "TerminalModel.h" -#include "SessionView.h" +#include "TerminalView.h" class QTerminal : public QWidget { @@ -55,7 +55,7 @@ private: void init(); - SessionView *m_sessionView; + TerminalView *m_sessionView; TerminalModel *m_sessionModel; };
deleted file mode 100644 --- a/libqterminal/SessionView.cpp +++ /dev/null @@ -1,2719 +0,0 @@ -/* - This file is part of Konsole, a terminal emulator for KDE. - - Copyright (C) 2006-7 by Robert Knight <robertknight@gmail.com> - Copyright (C) 1997,1998 by Lars Doelle <lars.doelle@on-line.de> - - Rewritten for QT4 by e_k <e_k at users.sourceforge.net>, Copyright (C)2008 - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - 02110-1301 USA. -*/ - -// Own -#include "SessionView.h" - -// Qt -#include <QtGui/QApplication> -#include <QtGui/QBoxLayout> -#include <QtGui/QClipboard> -#include <QtGui/QKeyEvent> -#include <QtCore/QEvent> -#include <QtCore/QTime> -#include <QtCore/QFile> -#include <QtGui/QGridLayout> -#include <QtGui/QLabel> -#include <QtGui/QLayout> -#include <QtGui/QPainter> -#include <QtGui/QPixmap> -#include <QtGui/QScrollBar> -#include <QtGui/QStyle> -#include <QtCore> -#include <QtGui> - -#include "Filter.h" -#include "konsole_wcwidth.h" -#include "ScreenWindow.h" -#include "TerminalCharacterDecoder.h" - -#ifndef loc -#define loc(X,Y) ((Y)*_columns+(X)) -#endif - -#define yMouseScroll 1 - -#define REPCHAR "ABCDEFGHIJKLMNOPQRSTUVWXYZ" \ - "abcdefgjijklmnopqrstuvwxyz" \ - "0123456789./+@" - -// scroll increment used when dragging selection at top/bottom of window. - -// static -bool SessionView::_antialiasText = true; -bool SessionView::HAVE_TRANSPARENCY = false; - -/* ------------------------------------------------------------------------- */ -/* */ -/* Colors */ -/* */ -/* ------------------------------------------------------------------------- */ - -/* Note that we use ANSI color order (bgr), while IBMPC color order is (rgb) - - Code 0 1 2 3 4 5 6 7 - ----------- ------- ------- ------- ------- ------- ------- ------- ------- - ANSI (bgr) Black Red Green Yellow Blue Magenta Cyan White - IBMPC (rgb) Black Blue Green Cyan Red Magenta Yellow White -*/ - -ScreenWindow* SessionView::screenWindow() const -{ - return _screenWindow; -} -void SessionView::setScreenWindow(ScreenWindow* window) -{ - // disconnect existing screen window if any - if ( _screenWindow ) - { - disconnect( _screenWindow , 0 , this , 0 ); - } - - _screenWindow = window; - - if ( window ) - { -//#warning "The order here is not specified - does it matter whether updateImage or updateLineProperties comes first?" - connect( _screenWindow , SIGNAL(outputChanged()) , this , SLOT(updateLineProperties()) ); - connect( _screenWindow , SIGNAL(outputChanged()) , this , SLOT(updateImage()) ); - window->setWindowLines(_lines); - } -} - -const ColorEntry* SessionView::colorTable() const -{ - return _colorTable; -} - -void SessionView::setColorTable(const ColorEntry table[]) -{ - for (int i = 0; i < TABLE_COLORS; i++) - _colorTable[i] = table[i]; - - QPalette p = palette(); - p.setColor( backgroundRole(), _colorTable[DEFAULT_BACK_COLOR].color ); - setPalette( p ); - - // Avoid propagating the palette change to the scroll bar - _scrollBar->setPalette( QApplication::palette() ); - - update(); -} - -/* ------------------------------------------------------------------------- */ -/* */ -/* Font */ -/* */ -/* ------------------------------------------------------------------------- */ - -/* - The VT100 has 32 special graphical characters. The usual vt100 extended - xterm fonts have these at 0x00..0x1f. - - QT's iso mapping leaves 0x00..0x7f without any changes. But the graphicals - come in here as proper unicode characters. - - We treat non-iso10646 fonts as VT100 extended and do the requiered mapping - from unicode to 0x00..0x1f. The remaining translation is then left to the - QCodec. -*/ - -static inline bool isLineChar(quint16 c) { return ((c & 0xFF80) == 0x2500);} -static inline bool isLineCharString(const QString& string) -{ - return (string.length() > 0) && (isLineChar(string.at(0).unicode())); -} - - -// assert for i in [0..31] : vt100extended(vt100_graphics[i]) == i. - -unsigned short vt100_graphics[32] = -{ // 0/8 1/9 2/10 3/11 4/12 5/13 6/14 7/15 - 0x0020, 0x25C6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, - 0x00b1, 0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, - 0xF800, 0xF801, 0x2500, 0xF803, 0xF804, 0x251c, 0x2524, 0x2534, - 0x252c, 0x2502, 0x2264, 0x2265, 0x03C0, 0x2260, 0x00A3, 0x00b7 -}; - -void SessionView::fontChange(const QFont&) -{ - QFontMetrics fm(font()); - _fontHeight = fm.height() + _lineSpacing; - - - // waba TerminalDisplay 1.123: - // "Base character width on widest ASCII character. This prevents too wide - // characters in the presence of double wide (e.g. Japanese) characters." - // Get the width from representative normal width characters - _fontWidth = qRound((double)fm.width(REPCHAR)/(double)strlen(REPCHAR)); - - _fixedFont = true; - - int fw = fm.width(REPCHAR[0]); - for(unsigned int i=1; i< strlen(REPCHAR); i++) - { - if (fw != fm.width(REPCHAR[i])) - { - _fixedFont = false; - break; - } - } - - if (_fontWidth < 1) - _fontWidth=1; - - _fontAscent = fm.ascent(); - - emit changedFontMetricSignal( _fontHeight, _fontWidth ); - propagateSize(); - update(); -} - -void SessionView::setVTFont(const QFont& f) -{ - QFont font = f; - - QFontMetrics metrics(font); - - if ( metrics.height() < height() && metrics.maxWidth() < width() ) - { - // hint that text should be drawn without anti-aliasing. - // depending on the user's font configuration, this may not be respected - if (!_antialiasText) - font.setStyleStrategy( QFont::NoAntialias ); - - // experimental optimization. Konsole assumes that the terminal is using a - // mono-spaced font, in which case kerning information should have an effect. - // Disabling kerning saves some computation when rendering text. - font.setKerning(false); - - QWidget::setFont(font); - fontChange(font); - } -} - -void SessionView::setFont(const QFont &) -{ - // ignore font change request if not coming from konsole itself -} - -/* ------------------------------------------------------------------------- */ -/* */ -/* Constructor / Destructor */ -/* */ -/* ------------------------------------------------------------------------- */ - -SessionView::SessionView(QWidget *parent) -:QWidget(parent) -,_screenWindow(0) -,_allowBell(true) -,_gridLayout(0) -,_fontHeight(1) -,_fontWidth(1) -,_fontAscent(1) -,_lines(1) -,_columns(1) -,_usedLines(1) -,_usedColumns(1) -,_contentHeight(1) -,_contentWidth(1) -,_image(0) -,_randomSeed(0) -,_resizing(false) -,_terminalSizeHint(false) -,_terminalSizeStartup(true) -,_bidiEnabled(false) -,_actSel(0) -,_wordSelectionMode(false) -,_lineSelectionMode(false) -,_preserveLineBreaks(false) -,_columnSelectionMode(false) -,_scrollbarLocation(NoScrollBar) -,_wordCharacters(":@-./_~") -,_bellMode(SystemBeepBell) -,_blinking(false) -,_cursorBlinking(false) -,_hasBlinkingCursor(false) -,_ctrlDrag(false) -,_tripleClickMode(SelectWholeLine) -,_isFixedSize(false) -,_possibleTripleClick(false) -,_resizeWidget(0) -,_resizeTimer(0) -,_outputSuspendedLabel(0) -,_lineSpacing(0) -,_colorsInverted(false) -,_blendColor(qRgba(0,0,0,0xff)) -,_filterChain(new TerminalImageFilterChain()) -,_cursorShape(BlockCursor) -,_readonly(false) -{ - // terminal applications are not designed with Right-To-Left in mind, - // so the layout is forced to Left-To-Right - setLayoutDirection(Qt::LeftToRight); - - // The offsets are not yet calculated. - // Do not calculate these too often to be more smoothly when resizing - // konsole in opaque mode. - _topMargin = DEFAULT_TOP_MARGIN; - _leftMargin = DEFAULT_LEFT_MARGIN; - - // create scroll bar for scrolling output up and down - // set the scroll bar's slider to occupy the whole area of the scroll bar initially - _scrollBar = new QScrollBar(this); - setScroll(0,0); - _scrollBar->setCursor( Qt::ArrowCursor ); - connect(_scrollBar, SIGNAL(valueChanged(int)), this, - SLOT(scrollBarPositionChanged(int))); - - // setup timers for blinking cursor and text - _blinkTimer = new QTimer(this); - connect(_blinkTimer, SIGNAL(timeout()), this, SLOT(blinkEvent())); - _blinkCursorTimer = new QTimer(this); - connect(_blinkCursorTimer, SIGNAL(timeout()), this, SLOT(blinkCursorEvent())); - -// QCursor::setAutoHideCursor( this, true ); - - setUsesMouse(true); - setColorTable(base_color_table); - setMouseTracking(true); - - // Enable drag and drop - setAcceptDrops(true); // attempt - dragInfo.state = diNone; - - setFocusPolicy( Qt::WheelFocus ); - - // enable input method support - setAttribute(Qt::WA_InputMethodEnabled, true); - - // this is an important optimization, it tells Qt - // that TerminalDisplay will handle repainting its entire area. - setAttribute(Qt::WA_OpaquePaintEvent); - - _gridLayout = new QGridLayout(this); - _gridLayout->setMargin(0); - - setLayout( _gridLayout ); - - //set up a warning message when the user presses Ctrl+S to avoid confusion - connect( this,SIGNAL(flowControlKeyPressed(bool)),this,SLOT(outputSuspended(bool)) ); -} - -SessionView::~SessionView() -{ - qApp->removeEventFilter( this ); - - delete[] _image; - - delete _gridLayout; - delete _outputSuspendedLabel; - delete _filterChain; -} - -/* ------------------------------------------------------------------------- */ -/* */ -/* Display Operations */ -/* */ -/* ------------------------------------------------------------------------- */ - -/** - A table for emulating the simple (single width) unicode drawing chars. - It represents the 250x - 257x glyphs. If it's zero, we can't use it. - if it's not, it's encoded as follows: imagine a 5x5 grid where the points are numbered - 0 to 24 left to top, top to bottom. Each point is represented by the corresponding bit. - - Then, the pixels basically have the following interpretation: - _|||_ - -...- - -...- - -...- - _|||_ - -where _ = none - | = vertical line. - - = horizontal line. - */ - - -enum LineEncode -{ - TopL = (1<<1), - TopC = (1<<2), - TopR = (1<<3), - - LeftT = (1<<5), - Int11 = (1<<6), - Int12 = (1<<7), - Int13 = (1<<8), - RightT = (1<<9), - - LeftC = (1<<10), - Int21 = (1<<11), - Int22 = (1<<12), - Int23 = (1<<13), - RightC = (1<<14), - - LeftB = (1<<15), - Int31 = (1<<16), - Int32 = (1<<17), - Int33 = (1<<18), - RightB = (1<<19), - - BotL = (1<<21), - BotC = (1<<22), - BotR = (1<<23) -}; - -#include "LineFont.h" - -static void drawLineChar(QPainter& paint, int x, int y, int w, int h, uchar code) -{ - //Calculate cell midpoints, end points. - int cx = x + w/2; - int cy = y + h/2; - int ex = x + w - 1; - int ey = y + h - 1; - - quint32 toDraw = LineChars[code]; - - //Top _lines: - if (toDraw & TopL) - paint.drawLine(cx-1, y, cx-1, cy-2); - if (toDraw & TopC) - paint.drawLine(cx, y, cx, cy-2); - if (toDraw & TopR) - paint.drawLine(cx+1, y, cx+1, cy-2); - - //Bot _lines: - if (toDraw & BotL) - paint.drawLine(cx-1, cy+2, cx-1, ey); - if (toDraw & BotC) - paint.drawLine(cx, cy+2, cx, ey); - if (toDraw & BotR) - paint.drawLine(cx+1, cy+2, cx+1, ey); - - //Left _lines: - if (toDraw & LeftT) - paint.drawLine(x, cy-1, cx-2, cy-1); - if (toDraw & LeftC) - paint.drawLine(x, cy, cx-2, cy); - if (toDraw & LeftB) - paint.drawLine(x, cy+1, cx-2, cy+1); - - //Right _lines: - if (toDraw & RightT) - paint.drawLine(cx+2, cy-1, ex, cy-1); - if (toDraw & RightC) - paint.drawLine(cx+2, cy, ex, cy); - if (toDraw & RightB) - paint.drawLine(cx+2, cy+1, ex, cy+1); - - //Intersection points. - if (toDraw & Int11) - paint.drawPoint(cx-1, cy-1); - if (toDraw & Int12) - paint.drawPoint(cx, cy-1); - if (toDraw & Int13) - paint.drawPoint(cx+1, cy-1); - - if (toDraw & Int21) - paint.drawPoint(cx-1, cy); - if (toDraw & Int22) - paint.drawPoint(cx, cy); - if (toDraw & Int23) - paint.drawPoint(cx+1, cy); - - if (toDraw & Int31) - paint.drawPoint(cx-1, cy+1); - if (toDraw & Int32) - paint.drawPoint(cx, cy+1); - if (toDraw & Int33) - paint.drawPoint(cx+1, cy+1); - -} - -void SessionView::drawLineCharString( QPainter& painter, int x, int y, const QString& str, - const Character* attributes) -{ - const QPen& currentPen = painter.pen(); - - if ( attributes->rendition & RE_BOLD ) - { - QPen boldPen(currentPen); - boldPen.setWidth(3); - painter.setPen( boldPen ); - } - - for (int i=0 ; i < str.length(); i++) - { - uchar code = str[i].cell(); - if (LineChars[code]) - drawLineChar(painter, x + (_fontWidth*i), y, _fontWidth, _fontHeight, code); - } - - painter.setPen( currentPen ); -} - -void SessionView::setKeyboardCursorShape(KeyboardCursorShape shape) -{ - _cursorShape = shape; -} -SessionView::KeyboardCursorShape SessionView::keyboardCursorShape() const -{ - return _cursorShape; -} -void SessionView::setKeyboardCursorColor(bool useForegroundColor, const QColor& color) -{ - if (useForegroundColor) - _cursorColor = QColor(); // an invalid color means that - // the foreground color of the - // current character should - // be used - - else - _cursorColor = color; -} -QColor SessionView::keyboardCursorColor() const -{ - return _cursorColor; -} - -void SessionView::setOpacity(qreal opacity) -{ - QColor color(_blendColor); - color.setAlphaF(opacity); - - // enable automatic background filling to prevent the display - // flickering if there is no transparency - if ( color.alpha() == 255 ) - { - setAutoFillBackground(true); - } - else - { - setAutoFillBackground(false); - } - - _blendColor = color.rgba(); -} - -void SessionView::drawBackground(QPainter& painter, const QRect& rect, const QColor& backgroundColor, bool useOpacitySetting ) -{ - // the area of the widget showing the contents of the terminal display is drawn - // using the background color from the color scheme set with setColorTable() - // - // the area of the widget behind the scroll-bar is drawn using the background - // brush from the scroll-bar's palette, to give the effect of the scroll-bar - // being outside of the terminal display and visual consistency with other KDE - // applications. - // - QRect scrollBarArea = _scrollBar->isVisible() ? - rect.intersected(_scrollBar->geometry()) : - QRect(); - QRegion contentsRegion = QRegion(rect).subtracted(scrollBarArea); - QRect contentsRect = contentsRegion.boundingRect(); - - if ( HAVE_TRANSPARENCY && qAlpha(_blendColor) < 0xff && useOpacitySetting ) - { - QColor color(backgroundColor); - color.setAlpha(qAlpha(_blendColor)); - - painter.save(); - painter.setCompositionMode(QPainter::CompositionMode_Source); - painter.fillRect(contentsRect, color); - painter.restore(); - } - else { - painter.fillRect(contentsRect, backgroundColor); - } - - painter.fillRect(scrollBarArea,_scrollBar->palette().background()); -} - -void SessionView::drawCursor(QPainter& painter, - const QRect& rect, - const QColor& foregroundColor, - const QColor& /*backgroundColor*/, - bool& invertCharacterColor) -{ - QRect cursorRect = rect; - cursorRect.setHeight(_fontHeight - _lineSpacing - 1); - - if (!_cursorBlinking) - { - if ( _cursorColor.isValid() ) - painter.setPen(_cursorColor); - else { - painter.setPen(foregroundColor); - } - - if ( _cursorShape == BlockCursor ) - { - // draw the cursor outline, adjusting the area so that - // it is draw entirely inside 'rect' - int penWidth = qMax(1,painter.pen().width()); - - painter.drawRect(cursorRect.adjusted(penWidth/2, - penWidth/2, - - penWidth/2 - penWidth%2, - - penWidth/2 - penWidth%2)); - if ( hasFocus() ) - { - painter.fillRect(cursorRect, _cursorColor.isValid() ? _cursorColor : foregroundColor); - - if ( !_cursorColor.isValid() ) - { - // invert the colour used to draw the text to ensure that the character at - // the cursor position is readable - invertCharacterColor = true; - } - } - } - else if ( _cursorShape == UnderlineCursor ) - painter.drawLine(cursorRect.left(), - cursorRect.bottom(), - cursorRect.right(), - cursorRect.bottom()); - else if ( _cursorShape == IBeamCursor ) - painter.drawLine(cursorRect.left(), - cursorRect.top(), - cursorRect.left(), - cursorRect.bottom()); - - } -} - -void SessionView::drawCharacters(QPainter& painter, - const QRect& rect, - const QString& text, - const Character* style, - bool invertCharacterColor) -{ - // don't draw text which is currently blinking - if ( _blinking && (style->rendition & RE_BLINK) ) - return; - - // setup bold and underline - bool useBold = style->rendition & RE_BOLD || style->isBold(_colorTable) || font().bold(); - bool useUnderline = style->rendition & RE_UNDERLINE || font().underline(); - - QFont font = painter.font(); - if ( font.bold() != useBold - || font.underline() != useUnderline ) - { - font.setBold(useBold); - font.setUnderline(useUnderline); - painter.setFont(font); - } - - const CharacterColor& textColor = ( invertCharacterColor ? style->backgroundColor : style->foregroundColor ); - const QColor color = textColor.color(_colorTable); - - QPen pen = painter.pen(); - if ( pen.color() != color ) - { - pen.setColor(color); - painter.setPen(color); - } - // draw text - if ( isLineCharString(text) ) { - drawLineCharString(painter,rect.x(),rect.y(),text,style); - } - else - { - // the drawText(rect,flags,string) overload is used here with null flags - // instead of drawText(rect,string) because the (rect,string) overload causes - // the application's default layout direction to be used instead of - // the widget-specific layout direction, which should always be - // Qt::LeftToRight for this widget - painter.drawText(rect,0,text); - } -} - -void SessionView::drawTextFragment(QPainter& painter , - const QRect& rect, - const QString& text, - const Character* style) -{ - painter.save(); - - // setup painter - const QColor foregroundColor = style->foregroundColor.color(_colorTable); - const QColor backgroundColor = style->backgroundColor.color(_colorTable); - - // draw background if different from the display's background color - if ( backgroundColor != palette().background().color() ) - drawBackground(painter,rect,backgroundColor, false /* do not use transparency */); - - // draw cursor shape if the current character is the cursor - // this may alter the foreground and background colors - bool invertCharacterColor = false; - - if ( style->rendition & RE_CURSOR ) - drawCursor(painter,rect,foregroundColor,backgroundColor,invertCharacterColor); - // draw text - drawCharacters(painter,rect,text,style,invertCharacterColor); - - painter.restore(); -} - -void SessionView::setRandomSeed(uint randomSeed) { _randomSeed = randomSeed; } -uint SessionView::randomSeed() const { return _randomSeed; } - -#if 0 -/*! - Set XIM Position -*/ -void TerminalDisplay::setCursorPos(const int curx, const int cury) -{ - QPoint tL = contentsRect().topLeft(); - int tLx = tL.x(); - int tLy = tL.y(); - - int xpos, ypos; - ypos = _topMargin + tLy + _fontHeight*(cury-1) + _fontAscent; - xpos = _leftMargin + tLx + _fontWidth*curx; - //setMicroFocusHint(xpos, ypos, 0, _fontHeight); //### ??? - // fprintf(stderr, "x/y = %d/%d\txpos/ypos = %d/%d\n", curx, cury, xpos, ypos); - _cursorLine = cury; - _cursorCol = curx; -} -#endif - -// scrolls the image by 'lines', down if lines > 0 or up otherwise. -// -// the terminal emulation keeps track of the scrolling of the character -// image as it receives input, and when the view is updated, it calls scrollImage() -// with the final scroll amount. this improves performance because scrolling the -// display is much cheaper than re-rendering all the text for the -// part of the image which has moved up or down. -// Instead only new lines have to be drawn -// -// note: it is important that the area of the display which is -// scrolled aligns properly with the character grid - -// which has a top left point at (_leftMargin,_topMargin) , -// a cell width of _fontWidth and a cell height of _fontHeight). -void SessionView::scrollImage(int lines , const QRect& screenWindowRegion) -{ - // if the flow control warning is enabled this will interfere with the - // scrolling optimisations and cause artifacts. the simple solution here - // is to just disable the optimisation whilst it is visible - if ( _outputSuspendedLabel && _outputSuspendedLabel->isVisible() ) { - return; - } - - // constrain the region to the display - // the bottom of the region is capped to the number of lines in the display's - // internal image - 2, so that the height of 'region' is strictly less - // than the height of the internal image. - QRect region = screenWindowRegion; - region.setBottom( qMin(region.bottom(),this->_lines-2) ); - - if ( lines == 0 - || _image == 0 - || !region.isValid() - || (region.top() + abs(lines)) >= region.bottom() - || this->_lines <= region.height() ) return; - - QRect scrollRect; - - void* firstCharPos = &_image[ region.top() * this->_columns ]; - void* lastCharPos = &_image[ (region.top() + abs(lines)) * this->_columns ]; - - int top = _topMargin + (region.top() * _fontHeight); - int linesToMove = region.height() - abs(lines); - int bytesToMove = linesToMove * - this->_columns * - sizeof(Character); - - Q_ASSERT( linesToMove > 0 ); - Q_ASSERT( bytesToMove > 0 ); - - //scroll internal image - if ( lines > 0 ) - { - // check that the memory areas that we are going to move are valid - Q_ASSERT( (char*)lastCharPos + bytesToMove < - (char*)(_image + (this->_lines * this->_columns)) ); - - Q_ASSERT( (lines*this->_columns) < _imageSize ); - - //scroll internal image down - memmove( firstCharPos , lastCharPos , bytesToMove ); - - //set region of display to scroll, making sure that - //the region aligns correctly to the character grid - scrollRect = QRect( _leftMargin , top, - this->_usedColumns * _fontWidth , - linesToMove * _fontHeight ); - } - else - { - // check that the memory areas that we are going to move are valid - Q_ASSERT( (char*)firstCharPos + bytesToMove < - (char*)(_image + (this->_lines * this->_columns)) ); - - //scroll internal image up - memmove( lastCharPos , firstCharPos , bytesToMove ); - - //set region of the display to scroll, making sure that - //the region aligns correctly to the character grid - QPoint topPoint( _leftMargin , top + abs(lines)*_fontHeight ); - - scrollRect = QRect( topPoint , - QSize( this->_usedColumns*_fontWidth , - linesToMove * _fontHeight )); - } - - //scroll the display vertically to match internal _image - scroll( 0 , _fontHeight * (-lines) , scrollRect ); -} - -QRegion SessionView::hotSpotRegion() const -{ - QRegion region; - foreach( Filter::HotSpot* hotSpot , _filterChain->hotSpots() ) - { - QRect rect; - rect.setLeft(hotSpot->startColumn()); - rect.setTop(hotSpot->startLine()); - rect.setRight(hotSpot->endColumn()); - rect.setBottom(hotSpot->endLine()); - - region |= imageToWidget(rect); - } - return region; -} - -void SessionView::processFilters() -{ - if (!_screenWindow) - return; - - QRegion preUpdateHotSpots = hotSpotRegion(); - - // use _screenWindow->getImage() here rather than _image because - // other classes may call processFilters() when this display's - // ScreenWindow emits a scrolled() signal - which will happen before - // updateImage() is called on the display and therefore _image is - // out of date at this point - _filterChain->setImage( _screenWindow->getImage(), - _screenWindow->windowLines(), - _screenWindow->windowColumns(), - _screenWindow->getLineProperties() ); - _filterChain->process(); - - QRegion postUpdateHotSpots = hotSpotRegion(); - - update( preUpdateHotSpots | postUpdateHotSpots ); -} - -void SessionView::updateImage() -{ - if ( !_screenWindow ) - return; - - // optimization - scroll the existing image where possible and - // avoid expensive text drawing for parts of the image that - // can simply be moved up or down - scrollImage( _screenWindow->scrollCount() , - _screenWindow->scrollRegion() ); - _screenWindow->resetScrollCount(); - - Character* const newimg = _screenWindow->getImage(); - int lines = _screenWindow->windowLines(); - int columns = _screenWindow->windowColumns(); - - setScroll( _screenWindow->currentLine() , _screenWindow->lineCount() ); - - if (!_image) - updateImageSize(); // Create _image - - Q_ASSERT( this->_usedLines <= this->_lines ); - Q_ASSERT( this->_usedColumns <= this->_columns ); - - int y,x,len; - - QPoint tL = contentsRect().topLeft(); - - int tLx = tL.x(); - int tLy = tL.y(); - _hasBlinker = false; - - CharacterColor cf; // undefined - CharacterColor _clipboard; // undefined - int cr = -1; // undefined - - const int linesToUpdate = qMin(this->_lines, qMax(0,lines )); - const int columnsToUpdate = qMin(this->_columns,qMax(0,columns)); - - QChar *disstrU = new QChar[columnsToUpdate]; - char *dirtyMask = new char[columnsToUpdate+2]; - QRegion dirtyRegion; - - // debugging variable, this records the number of lines that are found to - // be 'dirty' ( ie. have changed from the old _image to the new _image ) and - // which therefore need to be repainted - int dirtyLineCount = 0; - - for (y = 0; y < linesToUpdate; y++) - { - const Character* currentLine = &_image[y*this->_columns]; - const Character* const newLine = &newimg[y*columns]; - - bool updateLine = false; - - // The dirty mask indicates which characters need repainting. We also - // mark surrounding neighbours dirty, in case the character exceeds - // its cell boundaries - memset(dirtyMask, 0, columnsToUpdate+2); - - for( x = 0 ; x < columnsToUpdate ; x++) - { - if ( newLine[x] != currentLine[x] ) - { - dirtyMask[x] = true; - } - } - - if (!_resizing) // not while _resizing, we're expecting a paintEvent - for (x = 0; x < columnsToUpdate; x++) - { - _hasBlinker |= (newLine[x].rendition & RE_BLINK); - - // Start drawing if this character or the next one differs. - // We also take the next one into account to handle the situation - // where characters exceed their cell width. - if (dirtyMask[x]) - { - quint16 c = newLine[x+0].character; - if ( !c ) - continue; - int p = 0; - disstrU[p++] = c; //fontMap(c); - bool lineDraw = isLineChar(c); - bool doubleWidth = (x+1 == columnsToUpdate) ? false : (newLine[x+1].character == 0); - cr = newLine[x].rendition; - _clipboard = newLine[x].backgroundColor; - if (newLine[x].foregroundColor != cf) cf = newLine[x].foregroundColor; - int lln = columnsToUpdate - x; - for (len = 1; len < lln; len++) - { - const Character& ch = newLine[x+len]; - - if (!ch.character) - continue; // Skip trailing part of multi-col chars. - - bool nextIsDoubleWidth = (x+len+1 == columnsToUpdate) ? false : (newLine[x+len+1].character == 0); - - if ( ch.foregroundColor != cf || - ch.backgroundColor != _clipboard || - ch.rendition != cr || - !dirtyMask[x+len] || - isLineChar(c) != lineDraw || - nextIsDoubleWidth != doubleWidth ) - break; - - disstrU[p++] = c; //fontMap(c); - } - - QString unistr(disstrU, p); - - bool saveFixedFont = _fixedFont; - if (lineDraw) - _fixedFont = false; - if (doubleWidth) - _fixedFont = false; - - updateLine = true; - - _fixedFont = saveFixedFont; - x += len - 1; - } - - } - - //both the top and bottom halves of double height _lines must always be redrawn - //although both top and bottom halves contain the same characters, only - //the top one is actually - //drawn. - if (_lineProperties.count() > y) - updateLine |= (_lineProperties[y] & LINE_DOUBLEHEIGHT); - - // if the characters on the line are different in the old and the new _image - // then this line must be repainted. - if (updateLine) - { - dirtyLineCount++; - - // add the area occupied by this line to the region which needs to be - // repainted - QRect dirtyRect = QRect( _leftMargin+tLx , - _topMargin+tLy+_fontHeight*y , - _fontWidth * columnsToUpdate , - _fontHeight ); - - dirtyRegion |= dirtyRect; - } - - // replace the line of characters in the old _image with the - // current line of the new _image - memcpy((void*)currentLine,(const void*)newLine,columnsToUpdate*sizeof(Character)); - } - - // if the new _image is smaller than the previous _image, then ensure that the area - // outside the new _image is cleared - if ( linesToUpdate < _usedLines ) - { - dirtyRegion |= QRect( _leftMargin+tLx , - _topMargin+tLy+_fontHeight*linesToUpdate , - _fontWidth * this->_columns , - _fontHeight * (_usedLines-linesToUpdate) ); - } - _usedLines = linesToUpdate; - - if ( columnsToUpdate < _usedColumns ) - { - dirtyRegion |= QRect( _leftMargin+tLx+columnsToUpdate*_fontWidth , - _topMargin+tLy , - _fontWidth * (_usedColumns-columnsToUpdate) , - _fontHeight * this->_lines ); - } - _usedColumns = columnsToUpdate; - - dirtyRegion |= _inputMethodData.previousPreeditRect; - - // update the parts of the display which have changed - update(dirtyRegion); - - if ( _hasBlinker && !_blinkTimer->isActive()) _blinkTimer->start( BLINK_DELAY ); - if (!_hasBlinker && _blinkTimer->isActive()) { _blinkTimer->stop(); _blinking = false; } - delete[] dirtyMask; - delete[] disstrU; - -} - -void SessionView::showResizeNotification() -{ - if (_terminalSizeHint && isVisible()) - { - if (_terminalSizeStartup) { - _terminalSizeStartup=false; - return; - } - if (!_resizeWidget) - { - _resizeWidget = new QLabel(("Size: XXX x XXX"), this); - _resizeWidget->setMinimumWidth(_resizeWidget->fontMetrics().width(("Size: XXX x XXX"))); - _resizeWidget->setMinimumHeight(_resizeWidget->sizeHint().height()); - _resizeWidget->setAlignment(Qt::AlignCenter); - - _resizeWidget->setStyleSheet("background-color:palette(window);border-style:solid;border-width:1px;border-color:palette(dark)"); - - _resizeTimer = new QTimer(this); - _resizeTimer->setSingleShot(true); - connect(_resizeTimer, SIGNAL(timeout()), _resizeWidget, SLOT(hide())); - - } - QString sizeStr; - sizeStr.sprintf("Size: %d x %d", _columns, _lines); - _resizeWidget->setText(sizeStr); - _resizeWidget->move((width()-_resizeWidget->width())/2, - (height()-_resizeWidget->height())/2+20); - _resizeWidget->show(); - _resizeTimer->start(1000); - } -} - -void SessionView::setBlinkingCursor(bool blink) -{ - _hasBlinkingCursor=blink; - - if (blink && !_blinkCursorTimer->isActive()) - _blinkCursorTimer->start(BLINK_DELAY); - - if (!blink && _blinkCursorTimer->isActive()) - { - _blinkCursorTimer->stop(); - if (_cursorBlinking) - blinkCursorEvent(); - else - _cursorBlinking = false; - } -} - -void SessionView::paintEvent( QPaintEvent* pe ) -{ -//qDebug("%s %d paintEvent", __FILE__, __LINE__); - QPainter paint(this); -//qDebug("%s %d paintEvent %d %d", __FILE__, __LINE__, paint.window().top(), paint.window().right()); - - foreach (QRect rect, (pe->region() & contentsRect()).rects()) - { - drawBackground(paint,rect,palette().background().color(), true /* use opacity setting */); - drawContents(paint, rect); - } -// drawBackground(paint,contentsRect(),palette().background().color(), true /* use opacity setting */); -// drawContents(paint, contentsRect()); - drawInputMethodPreeditString(paint,preeditRect()); - paintFilters(paint); - - paint.end(); -} - -QPoint SessionView::cursorPosition() const -{ - if (_screenWindow) - return _screenWindow->cursorPosition(); - else - return QPoint(0,0); -} - -QRect SessionView::preeditRect() const -{ - const int preeditLength = string_width(_inputMethodData.preeditString); - - if ( preeditLength == 0 ) - return QRect(); - - return QRect(_leftMargin + _fontWidth*cursorPosition().x(), - _topMargin + _fontHeight*cursorPosition().y(), - _fontWidth*preeditLength, - _fontHeight); -} - -void SessionView::drawInputMethodPreeditString(QPainter& painter , const QRect& rect) -{ - if ( _inputMethodData.preeditString.isEmpty() ) { - return; - } - const QPoint cursorPos = cursorPosition(); - - bool invertColors = false; - const QColor background = _colorTable[DEFAULT_BACK_COLOR].color; - const QColor foreground = _colorTable[DEFAULT_FORE_COLOR].color; - const Character* style = &_image[loc(cursorPos.x(),cursorPos.y())]; - - drawBackground(painter,rect,background,true); - drawCursor(painter,rect,foreground,background,invertColors); - drawCharacters(painter,rect,_inputMethodData.preeditString,style,invertColors); - - _inputMethodData.previousPreeditRect = rect; -} - -FilterChain* SessionView::filterChain() const -{ - return _filterChain; -} - -void SessionView::paintFilters(QPainter& painter) -{ -//qDebug("%s %d paintFilters", __FILE__, __LINE__); - - // get color of character under mouse and use it to draw - // lines for filters - QPoint cursorPos = mapFromGlobal(QCursor::pos()); - int cursorLine; - int cursorColumn; - getCharacterPosition( cursorPos , cursorLine , cursorColumn ); - Character cursorCharacter = _image[loc(cursorColumn,cursorLine)]; - - painter.setPen( QPen(cursorCharacter.foregroundColor.color(colorTable())) ); - - // iterate over hotspots identified by the display's currently active filters - // and draw appropriate visuals to indicate the presence of the hotspot - - QList<Filter::HotSpot*> spots = _filterChain->hotSpots(); - QListIterator<Filter::HotSpot*> iter(spots); - while (iter.hasNext()) - { - Filter::HotSpot* spot = iter.next(); - - for ( int line = spot->startLine() ; line <= spot->endLine() ; line++ ) - { - int startColumn = 0; - int endColumn = _columns-1; // TODO use number of _columns which are actually - // occupied on this line rather than the width of the - // display in _columns - - // ignore whitespace at the end of the lines - while ( QChar(_image[loc(endColumn,line)].character).isSpace() && endColumn > 0 ) - endColumn--; - - // increment here because the column which we want to set 'endColumn' to - // is the first whitespace character at the end of the line - endColumn++; - - if ( line == spot->startLine() ) - startColumn = spot->startColumn(); - if ( line == spot->endLine() ) - endColumn = spot->endColumn(); - - // subtract one pixel from - // the right and bottom so that - // we do not overdraw adjacent - // hotspots - // - // subtracting one pixel from all sides also prevents an edge case where - // moving the mouse outside a link could still leave it underlined - // because the check below for the position of the cursor - // finds it on the border of the target area - QRect r; - r.setCoords( startColumn*_fontWidth + 1, line*_fontHeight + 1, - endColumn*_fontWidth - 1, (line+1)*_fontHeight - 1 ); - - // Underline link hotspots - if ( spot->type() == Filter::HotSpot::Link ) - { - QFontMetrics metrics(font()); - - // find the baseline (which is the invisible line that the characters in the font sit on, - // with some having tails dangling below) - int baseline = r.bottom() - metrics.descent(); - // find the position of the underline below that - int underlinePos = baseline + metrics.underlinePos(); - - if ( r.contains( mapFromGlobal(QCursor::pos()) ) ) - painter.drawLine( r.left() , underlinePos , - r.right() , underlinePos ); - } - // Marker hotspots simply have a transparent rectanglular shape - // drawn on top of them - else if ( spot->type() == Filter::HotSpot::Marker ) - { - //TODO - Do not use a hardcoded colour for this - painter.fillRect(r,QBrush(QColor(255,0,0,120))); - } - } - } -} -void SessionView::drawContents(QPainter &paint, const QRect &rect) -{ -//qDebug("%s %d drawContents and rect x=%d y=%d w=%d h=%d", __FILE__, __LINE__, rect.x(), rect.y(),rect.width(),rect.height()); - - QPoint tL = contentsRect().topLeft(); -// int tLx = tL.x(); - int tLy = tL.y(); - - int tLx = (_contentWidth - _usedColumns * _fontWidth)/2; -// int tLy = (_contentHeight - _usedLines * _fontHeight)/2; -//qDebug("%d %d %d %d", tLx, tLy, _contentWidth, _usedColumns * _fontWidth); - - int lux = qMin(_usedColumns-1, qMax(0,(rect.left() - tLx - _leftMargin ) / _fontWidth)); - int luy = qMin(_usedLines-1, qMax(0, (rect.top() - tLy - _topMargin ) / _fontHeight)); - int rlx = qMin(_usedColumns-1, qMax(0, (rect.right() - tLx - _leftMargin ) / _fontWidth)); - int rly = qMin(_usedLines-1, qMax(0, (rect.bottom() - tLy - _topMargin ) / _fontHeight)); - - const int bufferSize = _usedColumns; - QChar *disstrU = new QChar[bufferSize]; - for (int y = luy; y <= rly; y++) - { - quint16 c = _image[loc(lux,y)].character; - int x = lux; - if(!c && x) - x--; // Search for start of multi-column character - for (; x <= rlx; x++) - { - int len = 1; - int p = 0; - - // is this a single character or a sequence of characters ? - if ( _image[loc(x,y)].rendition & RE_EXTENDED_CHAR ) - { - // sequence of characters - ushort extendedCharLength = 0; - ushort* chars = ExtendedCharTable::instance - .lookupExtendedChar(_image[loc(x,y)].charSequence,extendedCharLength); - for ( int index = 0 ; index < extendedCharLength ; index++ ) - { - Q_ASSERT( p < bufferSize ); - disstrU[p++] = chars[index]; - } - } - else - { - // single character - c = _image[loc(x,y)].character; - if (c) - { - Q_ASSERT( p < bufferSize ); - disstrU[p++] = c; //fontMap(c); - } - } - - bool lineDraw = isLineChar(c); - bool doubleWidth = (_image[ qMin(loc(x,y)+1,_imageSize) ].character == 0); - CharacterColor currentForeground = _image[loc(x,y)].foregroundColor; - CharacterColor currentBackground = _image[loc(x,y)].backgroundColor; - quint8 currentRendition = _image[loc(x,y)].rendition; - - while (x+len <= rlx && - _image[loc(x+len,y)].foregroundColor == currentForeground && - _image[loc(x+len,y)].backgroundColor == currentBackground && - _image[loc(x+len,y)].rendition == currentRendition && - (_image[ qMin(loc(x+len,y)+1,_imageSize) ].character == 0) == doubleWidth && - isLineChar( c = _image[loc(x+len,y)].character) == lineDraw) // Assignment! - { - if (c) - disstrU[p++] = c; //fontMap(c); - if (doubleWidth) // assert((_image[loc(x+len,y)+1].character == 0)), see above if condition - len++; // Skip trailing part of multi-column character - len++; - } - if ((x+len < _usedColumns) && (!_image[loc(x+len,y)].character)) - len++; // Adjust for trailing part of multi-column character - - bool save__fixedFont = _fixedFont; - if (lineDraw) - _fixedFont = false; - if (doubleWidth) - _fixedFont = false; - QString unistr(disstrU,p); - - if (y < _lineProperties.size()) - { - if (_lineProperties[y] & LINE_DOUBLEWIDTH) { - paint.scale(2,1); - } - - if (_lineProperties[y] & LINE_DOUBLEHEIGHT) { - paint.scale(1,2); - } - } - - //calculate the area in which the text will be drawn - QRect textArea = QRect( _leftMargin+tLx+_fontWidth*x , - _topMargin+tLy+_fontHeight*y , - _fontWidth*len, - _fontHeight); - - //move the calculated area to take account of scaling applied to the painter. - //the position of the area from the origin (0,0) is scaled - //by the opposite of whatever - //transformation has been applied to the painter. this ensures that - //painting does actually start from textArea.topLeft() - //(instead of textArea.topLeft() * painter-scale) - QMatrix inverted = paint.matrix().inverted(); -// textArea.moveTopLeft( inverted.map(textArea.topLeft()) ); - textArea.moveCenter( inverted.map(textArea.center()) ); - - - //paint text fragment - drawTextFragment( paint, - textArea, - unistr, - &_image[loc(x,y)] ); //, - //0, - //!_isPrinting ); - - _fixedFont = save__fixedFont; - - //reset back to single-width, single-height _lines - paint.resetMatrix(); - - if (y < _lineProperties.size()-1) - { - //double-height _lines are represented by two adjacent _lines - //containing the same characters - //both _lines will have the LINE_DOUBLEHEIGHT attribute. - //If the current line has the LINE_DOUBLEHEIGHT attribute, - //we can therefore skip the next line - if (_lineProperties[y] & LINE_DOUBLEHEIGHT) - y++; - } - - x += len - 1; - } - } - delete [] disstrU; -} - -void SessionView::blinkEvent() -{ - _blinking = !_blinking; - - //TODO: Optimise to only repaint the areas of the widget - // where there is blinking text - // rather than repainting the whole widget. - update(); -} - -QRect SessionView::imageToWidget(const QRect& imageArea) const -{ -//qDebug("%s %d imageToWidget", __FILE__, __LINE__); - QRect result; - result.setLeft( _leftMargin + _fontWidth * imageArea.left() ); - result.setTop( _topMargin + _fontHeight * imageArea.top() ); - result.setWidth( _fontWidth * imageArea.width() ); - result.setHeight( _fontHeight * imageArea.height() ); - - return result; -} - -void SessionView::blinkCursorEvent() -{ - _cursorBlinking = !_cursorBlinking; - - QRect cursorRect = imageToWidget( QRect(cursorPosition(),QSize(1,1)) ); - - update(cursorRect); -} - -/* ------------------------------------------------------------------------- */ -/* */ -/* Resizing */ -/* */ -/* ------------------------------------------------------------------------- */ - -void SessionView::resizeEvent(QResizeEvent*) -{ - updateImageSize(); -} - -void SessionView::propagateSize() -{ - if (_isFixedSize) - { - setSize(_columns, _lines); - QWidget::setFixedSize(sizeHint()); - parentWidget()->adjustSize(); - parentWidget()->setFixedSize(parentWidget()->sizeHint()); - return; - } - if (_image) - updateImageSize(); -} - -void SessionView::updateImageSize() -{ -//qDebug("%s %d updateImageSize", __FILE__, __LINE__); - Character* oldimg = _image; - int oldlin = _lines; - int oldcol = _columns; - - makeImage(); - - - // copy the old image to reduce flicker - int lines = qMin(oldlin,_lines); - int columns = qMin(oldcol,_columns); - -//qDebug("%s %d updateImageSize", __FILE__, __LINE__); - if (oldimg) - { - for (int line = 0; line < lines; line++) - { - memcpy((void*)&_image[_columns*line], - (void*)&oldimg[oldcol*line],columns*sizeof(Character)); - } - delete[] oldimg; - } - -//qDebug("%s %d updateImageSize", __FILE__, __LINE__); - if (_screenWindow) - _screenWindow->setWindowLines(_lines); - - _resizing = (oldlin!=_lines) || (oldcol!=_columns); - - if ( _resizing ) - { -//qDebug("%s %d updateImageSize", __FILE__, __LINE__); - showResizeNotification(); - emit changedContentSizeSignal(_contentHeight, _contentWidth); // expose resizeEvent - } -//qDebug("%s %d updateImageSize", __FILE__, __LINE__); - - _resizing = false; -} - -//showEvent and hideEvent are reimplemented here so that it appears to other classes that the -//display has been resized when the display is hidden or shown. -// -//this allows -//TODO: Perhaps it would be better to have separate signals for show and hide instead of using -//the same signal as the one for a content size change -void SessionView::showEvent(QShowEvent*) -{ - emit changedContentSizeSignal(_contentHeight,_contentWidth); -} -void SessionView::hideEvent(QHideEvent*) -{ - emit changedContentSizeSignal(_contentHeight,_contentWidth); -} - -/* ------------------------------------------------------------------------- */ -/* */ -/* Scrollbar */ -/* */ -/* ------------------------------------------------------------------------- */ - -void SessionView::scrollBarPositionChanged(int) -{ - if ( !_screenWindow ) - return; - - _screenWindow->scrollTo( _scrollBar->value() ); - - // if the thumb has been moved to the bottom of the _scrollBar then set - // the display to automatically track new output, - // that is, scroll down automatically - // to how new _lines as they are added - const bool atEndOfOutput = (_scrollBar->value() == _scrollBar->maximum()); - _screenWindow->setTrackOutput( atEndOfOutput ); - - updateImage(); -} - -void SessionView::setScroll(int cursor, int slines) -{ -//qDebug("%s %d setScroll", __FILE__, __LINE__); - // update _scrollBar if the range or value has changed, - // otherwise return - // - // setting the range or value of a _scrollBar will always trigger - // a repaint, so it should be avoided if it is not necessary - if ( _scrollBar->minimum() == 0 && - _scrollBar->maximum() == (slines - _lines) && - _scrollBar->value() == cursor ) - { - return; - } - - disconnect(_scrollBar, SIGNAL(valueChanged(int)), this, SLOT(scrollBarPositionChanged(int))); - _scrollBar->setRange(0,slines - _lines); - _scrollBar->setSingleStep(1); - _scrollBar->setPageStep(_lines); - _scrollBar->setValue(cursor); - connect(_scrollBar, SIGNAL(valueChanged(int)), this, SLOT(scrollBarPositionChanged(int))); -} - -void SessionView::setScrollBarPosition(ScrollBarPosition position) -{ - if (_scrollbarLocation == position) { -// return; - } - - if ( position == NoScrollBar ) - _scrollBar->hide(); - else - _scrollBar->show(); - - _topMargin = _leftMargin = 1; - _scrollbarLocation = position; - - propagateSize(); - update(); -} - -void SessionView::mousePressEvent(QMouseEvent* ev) -{ - if ( _possibleTripleClick && (ev->button()==Qt::LeftButton) ) { - mouseTripleClickEvent(ev); - return; - } - - if ( !contentsRect().contains(ev->pos()) ) return; - - if ( !_screenWindow ) return; - - int charLine; - int charColumn; - getCharacterPosition(ev->pos(),charLine,charColumn); - QPoint pos = QPoint(charColumn,charLine); - - if ( ev->button() == Qt::LeftButton) - { - _lineSelectionMode = false; - _wordSelectionMode = false; - - emit isBusySelecting(true); // Keep it steady... - // Drag only when the Control key is hold - bool selected = false; - - // The receiver of the testIsSelected() signal will adjust - // 'selected' accordingly. - //emit testIsSelected(pos.x(), pos.y(), selected); - - selected = _screenWindow->isSelected(pos.x(),pos.y()); - - if ((!_ctrlDrag || ev->modifiers() & Qt::ControlModifier) && selected ) { - // The user clicked inside selected text - dragInfo.state = diPending; - dragInfo.start = ev->pos(); - } - else { - // No reason to ever start a drag event - dragInfo.state = diNone; - - _preserveLineBreaks = !( ( ev->modifiers() & Qt::ControlModifier ) && !(ev->modifiers() & Qt::AltModifier) ); - _columnSelectionMode = (ev->modifiers() & Qt::AltModifier) && (ev->modifiers() & Qt::ControlModifier); - - if (_mouseMarks || (ev->modifiers() & Qt::ShiftModifier)) - { - _screenWindow->clearSelection(); - - //emit clearSelectionSignal(); - pos.ry() += _scrollBar->value(); - _iPntSel = _pntSel = pos; - _actSel = 1; // left mouse button pressed but nothing selected yet. - - } - else - { - emit mouseSignal( 0, charColumn + 1, charLine + 1 +_scrollBar->value() -_scrollBar->maximum() , 0); - } - } - } - else if ( ev->button() == Qt::MidButton ) - { - if ( _mouseMarks || (!_mouseMarks && (ev->modifiers() & Qt::ShiftModifier)) ) - emitSelection(true,ev->modifiers() & Qt::ControlModifier); - else - emit mouseSignal( 1, charColumn +1, charLine +1 +_scrollBar->value() -_scrollBar->maximum() , 0); - } - else if ( ev->button() == Qt::RightButton ) - { - if (_mouseMarks || (ev->modifiers() & Qt::ShiftModifier)) - { - emit configureRequest( this, - ev->modifiers() & (Qt::ShiftModifier|Qt::ControlModifier), - ev->pos() - ); - } - else - emit mouseSignal( 2, charColumn +1, charLine +1 +_scrollBar->value() -_scrollBar->maximum() , 0); - } -} - -QList<QAction*> SessionView::filterActions(const QPoint& position) -{ - int charLine, charColumn; - getCharacterPosition(position,charLine,charColumn); - - Filter::HotSpot* spot = _filterChain->hotSpotAt(charLine,charColumn); - - return spot ? spot->actions() : QList<QAction*>(); -} - -void SessionView::mouseMoveEvent(QMouseEvent* ev) -{ - int charLine = 0; - int charColumn = 0; - - getCharacterPosition(ev->pos(),charLine,charColumn); - - // handle filters - // change link hot-spot appearance on mouse-over - Filter::HotSpot* spot = _filterChain->hotSpotAt(charLine,charColumn); - if ( spot && spot->type() == Filter::HotSpot::Link) - { - QRect previousHotspotArea = _mouseOverHotspotArea; - _mouseOverHotspotArea.setCoords( qMin(spot->startColumn() , spot->endColumn()) * _fontWidth, - spot->startLine() * _fontHeight, - qMax(spot->startColumn() , spot->endColumn()) * _fontHeight, - (spot->endLine()+1) * _fontHeight ); - - // display tooltips when mousing over links - // TODO: Extend this to work with filter types other than links - const QString& tooltip = spot->tooltip(); - if ( !tooltip.isEmpty() ) - { - QToolTip::showText( mapToGlobal(ev->pos()) , tooltip , this , _mouseOverHotspotArea ); - } - - update( _mouseOverHotspotArea | previousHotspotArea ); - } - else if ( _mouseOverHotspotArea.isValid() ) - { - update( _mouseOverHotspotArea ); - // set hotspot area to an invalid rectangle - _mouseOverHotspotArea = QRect(); - } - - // for auto-hiding the cursor, we need mouseTracking - if (ev->buttons() == Qt::NoButton ) return; - - // if the terminal is interested in mouse movements - // then emit a mouse movement signal, unless the shift - // key is being held down, which overrides this. - if (!_mouseMarks && !(ev->modifiers() & Qt::ShiftModifier)) - { - int button = 3; - if (ev->buttons() & Qt::LeftButton) - button = 0; - if (ev->buttons() & Qt::MidButton) - button = 1; - if (ev->buttons() & Qt::RightButton) - button = 2; - - - emit mouseSignal( button, - charColumn + 1, - charLine + 1 +_scrollBar->value() -_scrollBar->maximum(), - 1 ); - - return; - } - - if (dragInfo.state == diPending) - { - // we had a mouse down, but haven't confirmed a drag yet - // if the mouse has moved sufficiently, we will confirm - - int distance = 10; //KGlobalSettings::dndEventDelay(); - if ( ev->x() > dragInfo.start.x() + distance || ev->x() < dragInfo.start.x() - distance || - ev->y() > dragInfo.start.y() + distance || ev->y() < dragInfo.start.y() - distance) - { - // we've left the drag square, we can start a real drag operation now - emit isBusySelecting(false); // Ok.. we can breath again. - - _screenWindow->clearSelection(); - doDrag(); - } - return; - } - else if (dragInfo.state == diDragging) - { - // this isn't technically needed because mouseMoveEvent is suppressed during - // Qt drag operations, replaced by dragMoveEvent - return; - } - - if (_actSel == 0) return; - - // don't extend selection while pasting - if (ev->buttons() & Qt::MidButton) return; - - extendSelection( ev->pos() ); -} - -#if 0 -void TerminalDisplay::setSelectionEnd() -{ - extendSelection( _configureRequestPoint ); -} -#endif - -void SessionView::extendSelection(const QPoint& position) { - QPoint pos = position; - - if (!_screenWindow) { - return; - } - - QPoint tL = contentsRect().topLeft(); - int tLx = tL.x(); - int tLy = tL.y(); - int scroll = _scrollBar->value(); - - // we're in the process of moving the mouse with the left button pressed - // the mouse cursor will kept caught within the bounds of the text in - // this widget. - - // Adjust position within text area bounds. See FIXME above. - QPoint oldpos = pos; - if (pos.x() < tLx + _leftMargin) { - pos.setX(tLx + _leftMargin); - } - if (pos.x() > tLx + _leftMargin + _usedColumns * _fontWidth - 1) { - pos.setX(tLx + _leftMargin + _usedColumns * _fontWidth); - } - if (pos.y() < tLy + _topMargin) { - pos.setY(tLy + _topMargin); - } - if (pos.y() > tLy + _topMargin + _usedLines * _fontHeight - 1) { - pos.setY(tLy + _topMargin + _usedLines * _fontHeight - 1); - } - - if (pos.y() == tLy + _topMargin + _usedLines * _fontHeight - 1) { - _scrollBar->setValue(_scrollBar->value() + yMouseScroll); // scrollforward - } - if (pos.y() == tLy + _topMargin) { - _scrollBar->setValue(_scrollBar->value() - yMouseScroll); // scrollback - } - - int charColumn = 0; - int charLine = 0; - getCharacterPosition(pos, charLine, charColumn); - - QPoint here = QPoint(charColumn, charLine); - QPoint ohere(here); - QPoint _iPntSelCorr = _iPntSel; - _iPntSelCorr.ry() -= _scrollBar->value(); - QPoint _pntSelCorr = _pntSel; - _pntSelCorr.ry() -= _scrollBar->value(); - bool swapping = false; - - if (_wordSelectionMode) { - // Extend to word boundaries - int i = 0; - int selClass = 0; - - bool left_not_right = (here.y() < _iPntSelCorr.y() || - (here.y() == _iPntSelCorr.y() && here.x() < _iPntSelCorr.x())); - bool old_left_not_right = (_pntSelCorr.y() < _iPntSelCorr.y() || - (_pntSelCorr.y() == _iPntSelCorr.y() && _pntSelCorr.x() < _iPntSelCorr.x())); - swapping = left_not_right != old_left_not_right; - - // Find left (left_not_right ? from here : from start) - QPoint left = left_not_right ? here : _iPntSelCorr; - i = loc(left.x(), left.y()); - if (i >= 0 && i <= _imageSize) { - selClass = charClass(_image[i].character); - while (((left.x() > 0) || (left.y() > 0 && (_lineProperties[left.y() - 1] & LINE_WRAPPED))) - && charClass(_image[i - 1].character) == selClass) { - i--; - if (left.x() > 0) { - left.rx()--; - } else { - left.rx() = _usedColumns - 1; - left.ry()--; - } - } - } - - // Find left (left_not_right ? from start : from here) - QPoint right = left_not_right ? _iPntSelCorr : here; - i = loc(right.x(), right.y()); - if (i >= 0 && i <= _imageSize) { - selClass = charClass(_image[i].character); - while (((right.x() < _usedColumns - 1) || (right.y() < _usedLines - 1 && (_lineProperties[right.y()] & LINE_WRAPPED))) - && charClass(_image[i + 1].character) == selClass) { - i++; - if (right.x() < _usedColumns - 1) { - right.rx()++; - } else { - right.rx() = 0; - right.ry()++; - } - } - } - - // Pick which is start (ohere) and which is extension (here) - if (left_not_right) { - here = left; - ohere = right; - } else { - here = right; - ohere = left; - } - ohere.rx()++; - } - - if (_lineSelectionMode) { - // Extend to complete line - bool above_not_below = (here.y() < _iPntSelCorr.y()); - - QPoint above = above_not_below ? here : _iPntSelCorr; - QPoint below = above_not_below ? _iPntSelCorr : here; - - while (above.y() > 0 && (_lineProperties[above.y() - 1] & LINE_WRAPPED)) { - above.ry()--; - } - while (below.y() < _usedLines - 1 && (_lineProperties[below.y()] & LINE_WRAPPED)) { - below.ry()++; - } - - above.setX(0); - below.setX(_usedColumns - 1); - - // Pick which is start (ohere) and which is extension (here) - if (above_not_below) { - here = above; - ohere = below; - } else { - here = below; - ohere = above; - } - - QPoint newSelBegin = QPoint(ohere.x(), ohere.y()); - swapping = !(_tripleSelBegin == newSelBegin); - _tripleSelBegin = newSelBegin; - - ohere.rx()++; - } - - int offset = 0; - if (!_wordSelectionMode && !_lineSelectionMode) { - int i = 0; - int selClass = 0; - - bool left_not_right = (here.y() < _iPntSelCorr.y() || - (here.y() == _iPntSelCorr.y() && here.x() < _iPntSelCorr.x())); - bool old_left_not_right = (_pntSelCorr.y() < _iPntSelCorr.y() || - (_pntSelCorr.y() == _iPntSelCorr.y() && _pntSelCorr.x() < _iPntSelCorr.x())); - swapping = left_not_right != old_left_not_right; - - // Find left (left_not_right ? from here : from start) - QPoint left = left_not_right ? here : _iPntSelCorr; - - // Find left (left_not_right ? from start : from here) - QPoint right = left_not_right ? _iPntSelCorr : here; - if (right.x() > 0 && !_columnSelectionMode) { - i = loc(right.x(), right.y()); - if (i >= 0 && i <= _imageSize) { - selClass = charClass(_image[i - 1].character); - if (selClass == ' ') { - while (right.x() < _usedColumns - 1 && charClass(_image[i + 1].character) == selClass && (right.y() < _usedLines - 1) && - !(_lineProperties[right.y()] & LINE_WRAPPED)) { - i++; - right.rx()++; - } - if (right.x() < _usedColumns - 1) { - right = left_not_right ? _iPntSelCorr : here; - } else { - right.rx()++; // will be balanced later because of offset=-1; - } - } - } - } - - // Pick which is start (ohere) and which is extension (here) - if (left_not_right) { - here = left; - ohere = right; - offset = 0; - } else { - here = right; - ohere = left; - offset = -1; - } - } - - if ((here == _pntSelCorr) && (scroll == _scrollBar->value())) { - return; // not moved - } - - if (here == ohere) { - return; // It's not left, it's not right. - } - - if (_actSel < 2 || swapping) { - if (_columnSelectionMode && !_lineSelectionMode && !_wordSelectionMode) { - _screenWindow->setSelectionStart(ohere.x(), ohere.y(), true); - } else { - _screenWindow->setSelectionStart(ohere.x() - 1 - offset , ohere.y(), false); - } - - } - - _actSel = 2; // within selection - _pntSel = here; - _pntSel.ry() += _scrollBar->value(); - - if (_columnSelectionMode && !_lineSelectionMode && !_wordSelectionMode) { - _screenWindow->setSelectionEnd(here.x(), here.y()); - } else { - _screenWindow->setSelectionEnd(here.x() + offset, here.y()); - } -} - -void SessionView::mouseReleaseEvent(QMouseEvent* ev) -{ - if ( !_screenWindow ) - return; - - int charLine; - int charColumn; - getCharacterPosition(ev->pos(),charLine,charColumn); - - if ( ev->button() == Qt::LeftButton) - { - emit isBusySelecting(false); - if(dragInfo.state == diPending) - { - // We had a drag event pending but never confirmed. Kill selection - _screenWindow->clearSelection(); - //emit clearSelectionSignal(); - } - else - { - if ( _actSel > 1 ) - { - setSelection( _screenWindow->selectedText(_preserveLineBreaks) ); - } - - _actSel = 0; - - //FIXME: emits a release event even if the mouse is - // outside the range. The procedure used in `mouseMoveEvent' - // applies here, too. - - if (!_mouseMarks && !(ev->modifiers() & Qt::ShiftModifier)) - emit mouseSignal( 3, // release - charColumn + 1, - charLine + 1 +_scrollBar->value() -_scrollBar->maximum() , 0); - } - dragInfo.state = diNone; - } - - - if ( !_mouseMarks && - ((ev->button() == Qt::RightButton && !(ev->modifiers() & Qt::ShiftModifier)) - || ev->button() == Qt::MidButton) ) - { - emit mouseSignal( 3, - charColumn + 1, - charLine + 1 +_scrollBar->value() -_scrollBar->maximum() , - 0); - } -} - -void SessionView::getCharacterPosition(const QPoint& widgetPoint,int& line,int& column) const -{ - - column = (widgetPoint.x() + _fontWidth/2 -contentsRect().left()-_leftMargin) / _fontWidth; - line = (widgetPoint.y()-contentsRect().top()-_topMargin) / _fontHeight; - - if ( line < 0 ) - line = 0; - if ( column < 0 ) - column = 0; - - if ( line >= _usedLines ) - line = _usedLines-1; - - // the column value returned can be equal to _usedColumns, which - // is the position just after the last character displayed in a line. - // - // this is required so that the user can select characters in the right-most - // column (or left-most for right-to-left input) - if ( column > _usedColumns ) - column = _usedColumns; -} - -void SessionView::updateLineProperties() -{ - if ( !_screenWindow ) - return; - - _lineProperties = _screenWindow->getLineProperties(); -} - -void SessionView::mouseDoubleClickEvent(QMouseEvent* ev) -{ - if ( ev->button() != Qt::LeftButton) return; - if ( !_screenWindow ) return; - - int charLine = 0; - int charColumn = 0; - - getCharacterPosition(ev->pos(),charLine,charColumn); - - QPoint pos(charColumn,charLine); - - // pass on double click as two clicks. - if (!_mouseMarks && !(ev->modifiers() & Qt::ShiftModifier)) - { - // Send just _ONE_ click event, since the first click of the double click - // was already sent by the click handler - emit mouseSignal( 0, - pos.x()+1, - pos.y()+1 +_scrollBar->value() -_scrollBar->maximum(), - 0 ); // left button - return; - } - - _screenWindow->clearSelection(); - QPoint bgnSel = pos; - QPoint endSel = pos; - int i = loc(bgnSel.x(),bgnSel.y()); - _iPntSel = bgnSel; - _iPntSel.ry() += _scrollBar->value(); - - _wordSelectionMode = true; - - // find word boundaries... - int selClass = charClass(_image[i].character); - { - // find the start of the word - int x = bgnSel.x(); - while ( ((x>0) || (bgnSel.y()>0 && (_lineProperties[bgnSel.y()-1] & LINE_WRAPPED) )) - && charClass(_image[i-1].character) == selClass ) - { - i--; - if (x>0) - x--; - else - { - x=_usedColumns-1; - bgnSel.ry()--; - } - } - - bgnSel.setX(x); - _screenWindow->setSelectionStart( bgnSel.x() , bgnSel.y() , false ); - - // find the end of the word - i = loc( endSel.x(), endSel.y() ); - x = endSel.x(); - while( ((x<_usedColumns-1) || (endSel.y()<_usedLines-1 && (_lineProperties[endSel.y()] & LINE_WRAPPED) )) - && charClass(_image[i+1].character) == selClass ) - { - i++; - if (x<_usedColumns-1) - x++; - else - { - x=0; - endSel.ry()++; - } - } - - endSel.setX(x); - - // In word selection mode don't select @ (64) if at end of word. - if ( ( QChar( _image[i].character ) == '@' ) && ( ( endSel.x() - bgnSel.x() ) > 0 ) ) - endSel.setX( x - 1 ); - - - _actSel = 2; // within selection - - _screenWindow->setSelectionEnd( endSel.x() , endSel.y() ); - - setSelection( _screenWindow->selectedText(_preserveLineBreaks) ); - } - - _possibleTripleClick=true; - - QTimer::singleShot(QApplication::doubleClickInterval(),this, - SLOT(tripleClickTimeout())); -} - -void SessionView::wheelEvent( QWheelEvent* ev ) -{ - if (ev->orientation() != Qt::Vertical) - return; - - if ( _mouseMarks ) - _scrollBar->event(ev); - else - { - int charLine; - int charColumn; - getCharacterPosition( ev->pos() , charLine , charColumn ); - - emit mouseSignal( ev->delta() > 0 ? 4 : 5, - charColumn + 1, - charLine + 1 +_scrollBar->value() -_scrollBar->maximum() , - 0); - } -} - -void SessionView::tripleClickTimeout() -{ - _possibleTripleClick=false; -} - -void SessionView::mouseTripleClickEvent(QMouseEvent* ev) -{ - if ( !_screenWindow ) return; - - int charLine; - int charColumn; - getCharacterPosition(ev->pos(),charLine,charColumn); - _iPntSel = QPoint(charColumn,charLine); - - _screenWindow->clearSelection(); - - _lineSelectionMode = true; - _wordSelectionMode = false; - - _actSel = 2; // within selection - emit isBusySelecting(true); // Keep it steady... - - while (_iPntSel.y()>0 && (_lineProperties[_iPntSel.y()-1] & LINE_WRAPPED) ) - _iPntSel.ry()--; - - if (_tripleClickMode == SelectForwardsFromCursor) { - // find word boundary start - int i = loc(_iPntSel.x(),_iPntSel.y()); - int selClass = charClass(_image[i].character); - int x = _iPntSel.x(); - - while ( ((x>0) || - (_iPntSel.y()>0 && (_lineProperties[_iPntSel.y()-1] & LINE_WRAPPED) ) - ) - && charClass(_image[i-1].character) == selClass ) - { - i--; - if (x>0) - x--; - else - { - x=_columns-1; - _iPntSel.ry()--; - } - } - - _screenWindow->setSelectionStart( x , _iPntSel.y() , false ); - _tripleSelBegin = QPoint( x, _iPntSel.y() ); - } - else if (_tripleClickMode == SelectWholeLine) { - _screenWindow->setSelectionStart( 0 , _iPntSel.y() , false ); - _tripleSelBegin = QPoint( 0, _iPntSel.y() ); - } - - while (_iPntSel.y()<_lines-1 && (_lineProperties[_iPntSel.y()] & LINE_WRAPPED) ) - _iPntSel.ry()++; - - _screenWindow->setSelectionEnd( _columns - 1 , _iPntSel.y() ); - - setSelection(_screenWindow->selectedText(_preserveLineBreaks)); - - _iPntSel.ry() += _scrollBar->value(); - - emit tripleClicked( _screenWindow->selectedText( _preserveLineBreaks ) ); -} - - -bool SessionView::focusNextPrevChild( bool next ) -{ - if (next) - return false; // This disables changing the active part in konqueror - // when pressing Tab - return QWidget::focusNextPrevChild( next ); -} - - -int SessionView::charClass(quint16 ch) const -{ - QChar qch=QChar(ch); - if ( qch.isSpace() ) return ' '; - - if ( qch.isLetterOrNumber() || _wordCharacters.contains(qch, Qt::CaseInsensitive ) ) - return 'a'; - - // Everything else is weird - return 1; -} - -void SessionView::setWordCharacters(const QString& wc) -{ - _wordCharacters = wc; -} - -void SessionView::setUsesMouse(bool on) -{ - _mouseMarks = on; - setCursor( _mouseMarks ? Qt::IBeamCursor : Qt::ArrowCursor ); -} -bool SessionView::usesMouse() const -{ - return _mouseMarks; -} - -/* ------------------------------------------------------------------------- */ -/* */ -/* Clipboard */ -/* */ -/* ------------------------------------------------------------------------- */ - -#undef KeyPress - -void SessionView::emitSelection(bool useXselection,bool appendReturn) -{ - if ( !_screenWindow ) - return; - - // Paste Clipboard by simulating keypress events - QString text = QApplication::clipboard()->text(useXselection ? QClipboard::Selection : - QClipboard::Clipboard); - if(appendReturn) - text.append("\r"); - if ( ! text.isEmpty() ) - { - text.replace("\n", "\r"); - QKeyEvent e(QEvent::KeyPress, 0, Qt::NoModifier, text); - emit keyPressedSignal(&e); // expose as a big fat keypress event - - _screenWindow->clearSelection(); - } -} - -void SessionView::setSelection(const QString& t) -{ - QApplication::clipboard()->setText(t, QClipboard::Selection); -} - -void SessionView::copyClipboard() -{ - if ( !_screenWindow ) - return; - - QString text = _screenWindow->selectedText(_preserveLineBreaks); - QApplication::clipboard()->setText(text); -} - -void SessionView::pasteClipboard() -{ - emitSelection(false,false); -} - -void SessionView::pasteSelection() -{ - emitSelection(true,false); -} - -/* ------------------------------------------------------------------------- */ -/* */ -/* Keyboard */ -/* */ -/* ------------------------------------------------------------------------- */ - -void SessionView::keyPressEvent( QKeyEvent* event ) -{ -//qDebug("%s %d keyPressEvent and key is %d", __FILE__, __LINE__, event->key()); - - bool emitKeyPressSignal = true; - - // Keyboard-based navigation - if ( event->modifiers() == Qt::ShiftModifier ) - { - bool update = true; - - if ( event->key() == Qt::Key_PageUp ) - { - //qDebug("%s %d pageup", __FILE__, __LINE__); - _screenWindow->scrollBy( ScreenWindow::ScrollPages , -1 ); - } - else if ( event->key() == Qt::Key_PageDown ) - { - //qDebug("%s %d pagedown", __FILE__, __LINE__); - _screenWindow->scrollBy( ScreenWindow::ScrollPages , 1 ); - } - else if ( event->key() == Qt::Key_Up ) - { - //qDebug("%s %d keyup", __FILE__, __LINE__); - _screenWindow->scrollBy( ScreenWindow::ScrollLines , -1 ); - } - else if ( event->key() == Qt::Key_Down ) - { - //qDebug("%s %d keydown", __FILE__, __LINE__); - _screenWindow->scrollBy( ScreenWindow::ScrollLines , 1 ); - } - else { - update = false; - } - - if ( update ) - { - //qDebug("%s %d updating", __FILE__, __LINE__); - _screenWindow->setTrackOutput( _screenWindow->atEndOfOutput() ); - - updateLineProperties(); - updateImage(); - - // do not send key press to terminal - emitKeyPressSignal = false; - } - } - - _screenWindow->setTrackOutput( true ); - - _actSel=0; // Key stroke implies a screen update, so TerminalDisplay won't - // know where the current selection is. - - if (_hasBlinkingCursor) - { - _blinkCursorTimer->start(BLINK_DELAY); - if (_cursorBlinking) - blinkCursorEvent(); - else - _cursorBlinking = false; - } - - if ( emitKeyPressSignal && !_readonly ) - emit keyPressedSignal(event); - - if (_readonly) { - event->ignore(); - } - else { - event->accept(); - } -} - -void SessionView::inputMethodEvent( QInputMethodEvent* event ) -{ - QKeyEvent keyEvent(QEvent::KeyPress,0,Qt::NoModifier,event->commitString()); - emit keyPressedSignal(&keyEvent); - - _inputMethodData.preeditString = event->preeditString(); - update(preeditRect() | _inputMethodData.previousPreeditRect); - - event->accept(); -} -QVariant SessionView::inputMethodQuery( Qt::InputMethodQuery query ) const -{ - const QPoint cursorPos = _screenWindow ? _screenWindow->cursorPosition() : QPoint(0,0); - switch ( query ) - { - case Qt::ImMicroFocus: - return imageToWidget(QRect(cursorPos.x(),cursorPos.y(),1,1)); - break; - case Qt::ImFont: - return font(); - break; - case Qt::ImCursorPosition: - // return the cursor position within the current line - return cursorPos.x(); - break; - case Qt::ImSurroundingText: - { - // return the text from the current line - QString lineText; - QTextStream stream(&lineText); - PlainTextDecoder decoder; - decoder.begin(&stream); - decoder.decodeLine(&_image[loc(0,cursorPos.y())],_usedColumns,_lineProperties[cursorPos.y()]); - decoder.end(); - return lineText; - } - break; - case Qt::ImCurrentSelection: - return QString(); - break; - default: - break; - } - - return QVariant(); -} - -bool SessionView::event( QEvent *e ) -{ - if ( e->type() == QEvent::ShortcutOverride ) - { - QKeyEvent* keyEvent = static_cast<QKeyEvent *>( e ); - - // a check to see if keyEvent->text() is empty is used - // to avoid intercepting the press of the modifier key on its own. - // - // this is important as it allows a press and release of the Alt key - // on its own to focus the menu bar, making it possible to - // work with the menu without using the mouse - if ( (keyEvent->modifiers() == Qt::AltModifier) && - !keyEvent->text().isEmpty() ) - { - keyEvent->accept(); - return true; - } - - // Override any of the following shortcuts because - // they are needed by the terminal - int keyCode = keyEvent->key() | keyEvent->modifiers(); - switch ( keyCode ) - { - // list is taken from the QLineEdit::event() code - case Qt::Key_Tab: - case Qt::Key_Delete: - case Qt::Key_Home: - case Qt::Key_End: - case Qt::Key_Backspace: - case Qt::Key_Left: - case Qt::Key_Right: - keyEvent->accept(); - return true; - } - } - return QWidget::event( e ); -} - -void SessionView::setBellMode(int mode) -{ - _bellMode=mode; -} - -void SessionView::enableBell() -{ - _allowBell = true; -} - -void SessionView::bell(const QString&) -{ - if (_bellMode==NoBell) return; - - //limit the rate at which bells can occur - //...mainly for sound effects where rapid bells in sequence - //produce a horrible noise - if ( _allowBell ) - { - _allowBell = false; - QTimer::singleShot(500,this,SLOT(enableBell())); - - if (_bellMode==SystemBeepBell) - { -// KNotification::beep(); - } - else if (_bellMode==NotifyBell) - { -// KNotification::event("BellVisible", message,QPixmap(),this); - } - else if (_bellMode==VisualBell) - { - swapColorTable(); - QTimer::singleShot(200,this,SLOT(swapColorTable())); - } - } -} - -void SessionView::swapColorTable() -{ - ColorEntry color = _colorTable[1]; - _colorTable[1]=_colorTable[0]; - _colorTable[0]= color; - _colorsInverted = !_colorsInverted; - update(); -} - -void SessionView::clearImage() -{ - // We initialize _image[_imageSize] too. See makeImage() - for (int i = 0; i <= _imageSize; i++) - { - _image[i].character = ' '; - _image[i].foregroundColor = CharacterColor(COLOR_SPACE_DEFAULT, - DEFAULT_FORE_COLOR); - _image[i].backgroundColor = CharacterColor(COLOR_SPACE_DEFAULT, - DEFAULT_BACK_COLOR); - _image[i].rendition = DEFAULT_RENDITION; - } -} - -void SessionView::calcGeometry() -{ - _scrollBar->resize(QApplication::style()->pixelMetric(QStyle::PM_ScrollBarExtent), - contentsRect().height()); - switch(_scrollbarLocation) - { - case NoScrollBar : - _leftMargin = DEFAULT_LEFT_MARGIN; - _contentWidth = contentsRect().width() - 2 * DEFAULT_LEFT_MARGIN; - break; - case ScrollBarLeft : - _leftMargin = DEFAULT_LEFT_MARGIN + _scrollBar->width(); - _contentWidth = contentsRect().width() - 2 * DEFAULT_LEFT_MARGIN - _scrollBar->width(); - _scrollBar->move(contentsRect().topLeft()); - break; - case ScrollBarRight: - _leftMargin = DEFAULT_LEFT_MARGIN; - _contentWidth = contentsRect().width() - 2 * DEFAULT_LEFT_MARGIN - _scrollBar->width(); - _scrollBar->move(contentsRect().topRight() - QPoint(_scrollBar->width()-1,0)); - break; - } - - _topMargin = DEFAULT_TOP_MARGIN; - _contentHeight = contentsRect().height() - 2 * DEFAULT_TOP_MARGIN + /* mysterious */ 1; - - if (!_isFixedSize) - { - // ensure that display is always at least one column wide - _columns = qMax(1,_contentWidth / _fontWidth); - _usedColumns = qMin(_usedColumns,_columns); - - // ensure that display is always at least one line high - _lines = qMax(1,_contentHeight / _fontHeight); - _usedLines = qMin(_usedLines,_lines); - } -} - -void SessionView::makeImage() -{ -//qDebug("%s %d makeImage", __FILE__, __LINE__); - calcGeometry(); - - // confirm that array will be of non-zero size, since the painting code - // assumes a non-zero array length - Q_ASSERT( _lines > 0 && _columns > 0 ); - Q_ASSERT( _usedLines <= _lines && _usedColumns <= _columns ); - - _imageSize=_lines*_columns; - - // We over-commit one character so that we can be more relaxed in dealing with - // certain boundary conditions: _image[_imageSize] is a valid but unused position - _image = new Character[_imageSize+1]; - - clearImage(); -} - -// calculate the needed size -void SessionView::setSize(int columns, int lines) -{ - //FIXME - Not quite correct, a small amount of additional space - // will be used for margins, the scrollbar etc. - // we need to allow for this so that '_size' does allow - // enough room for the specified number of columns and lines to fit - - QSize newSize = QSize( columns * _fontWidth , - lines * _fontHeight ); - - if ( newSize != size() ) - { - _size = newSize; - updateGeometry(); - } -} - -void SessionView::setFixedSize(int cols, int lins) -{ - _isFixedSize = true; - - //ensure that display is at least one line by one column in size - _columns = qMax(1,cols); - _lines = qMax(1,lins); - _usedColumns = qMin(_usedColumns,_columns); - _usedLines = qMin(_usedLines,_lines); - - if (_image) - { - delete[] _image; - makeImage(); - } - setSize(cols, lins); - QWidget::setFixedSize(_size); -} - -QSize SessionView::sizeHint() const -{ - return _size; -} - - -/* --------------------------------------------------------------------- */ -/* */ -/* Drag & Drop */ -/* */ -/* --------------------------------------------------------------------- */ - -void SessionView::dragEnterEvent(QDragEnterEvent* event) -{ - if (event->mimeData()->hasFormat("text/plain")) - event->acceptProposedAction(); -} - -void SessionView::dropEvent(QDropEvent* event) -{ -// KUrl::List urls = KUrl::List::fromMimeData(event->mimeData()); - - QString dropText; -/* if (!urls.isEmpty()) - { - for ( int i = 0 ; i < urls.count() ; i++ ) - { - KUrl url = KIO::NetAccess::mostLocalUrl( urls[i] , 0 ); - QString urlText; - - if (url.isLocalFile()) - urlText = url.path(); - else - urlText = url.url(); - - // in future it may be useful to be able to insert file names with drag-and-drop - // without quoting them (this only affects paths with spaces in) - urlText = KShell::quoteArg(urlText); - - dropText += urlText; - - if ( i != urls.count()-1 ) - dropText += ' '; - } - } - else - { - dropText = event->mimeData()->text(); - } -*/ - if(event->mimeData()->hasFormat("text/plain")) - { - emit sendStringToEmu(dropText.toLocal8Bit()); - } -} - -void SessionView::doDrag() -{ - dragInfo.state = diDragging; - dragInfo.dragObject = new QDrag(this); - QMimeData *mimeData = new QMimeData; - mimeData->setText(QApplication::clipboard()->text(QClipboard::Selection)); - dragInfo.dragObject->setMimeData(mimeData); - dragInfo.dragObject->start(Qt::CopyAction); - // Don't delete the QTextDrag object. Qt will delete it when it's done with it. -} - -void SessionView::outputSuspended(bool suspended) -{ - //create the label when this function is first called - if (!_outputSuspendedLabel) - { - //This label includes a link to an English language website - //describing the 'flow control' (Xon/Xoff) feature found in almost - //all terminal emulators. - //If there isn't a suitable article available in the target language the link - //can simply be removed. - _outputSuspendedLabel = new QLabel( ("<qt>Output has been " - "<a href=\"http://en.wikipedia.org/wiki/XON\">suspended</a>" - " by pressing Ctrl+S." - " Press <b>Ctrl+Q</b> to resume.</qt>"), - this ); - - QPalette palette(_outputSuspendedLabel->palette()); - - palette.setColor(QPalette::Normal, QPalette::WindowText, QColor(Qt::white)); - palette.setColor(QPalette::Normal, QPalette::Window, QColor(Qt::black)); -// KColorScheme::adjustForeground(palette,KColorScheme::NeutralText); -// KColorScheme::adjustBackground(palette,KColorScheme::NeutralBackground); - _outputSuspendedLabel->setPalette(palette); - _outputSuspendedLabel->setAutoFillBackground(true); - _outputSuspendedLabel->setBackgroundRole(QPalette::Base); - _outputSuspendedLabel->setFont(QApplication::font()); - _outputSuspendedLabel->setMargin(5); - - //enable activation of "Xon/Xoff" link in label - _outputSuspendedLabel->setTextInteractionFlags(Qt::LinksAccessibleByMouse | - Qt::LinksAccessibleByKeyboard); - _outputSuspendedLabel->setOpenExternalLinks(true); - _outputSuspendedLabel->setVisible(false); - - _gridLayout->addWidget(_outputSuspendedLabel); - _gridLayout->addItem( new QSpacerItem(0,0,QSizePolicy::Expanding, - QSizePolicy::Expanding), - 1,0); - - } - - _outputSuspendedLabel->setVisible(suspended); -} - -uint SessionView::lineSpacing() const -{ - return _lineSpacing; -} - -void SessionView::setLineSpacing(uint i) -{ - _lineSpacing = i; - setVTFont(font()); // Trigger an update. -}
deleted file mode 100644 --- a/libqterminal/SessionView.h +++ /dev/null @@ -1,752 +0,0 @@ -/* - Copyright (C) 2007 by Robert Knight <robertknight@gmail.com> - Copyright (C) 1997,1998 by Lars Doelle <lars.doelle@on-line.de> - - Rewritten for QT4 by e_k <e_k at users.sourceforge.net>, Copyright (C)2008 - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - 02110-1301 USA. -*/ - -#ifndef TERMINALDISPLAY_H -#define TERMINALDISPLAY_H - -// Qt -#include <QtGui/QColor> -#include <QtCore/QPointer> -#include <QtGui/QWidget> - -// Konsole -#include "Filter.h" -#include "Character.h" - -class QDrag; -class QDragEnterEvent; -class QDropEvent; -class QLabel; -class QTimer; -class QEvent; -class QFrame; -class QGridLayout; -class QKeyEvent; -class QScrollBar; -class QShowEvent; -class QHideEvent; -class QWidget; - -extern unsigned short vt100_graphics[32]; - -class ScreenWindow; - -/** - * A widget which displays output from a terminal emulation and sends input keypresses and mouse activity - * to the terminal. - * - * When the terminal emulation receives new output from the program running in the terminal, - * it will update the display by calling updateImage(). - * - * TODO More documentation - */ -class SessionView : public QWidget -{ - Q_OBJECT - -public: - /** Constructs a new terminal display widget with the specified parent. */ - SessionView(QWidget *parent = 0); - virtual ~SessionView(); - - /** Returns the terminal color palette used by the display. */ - const ColorEntry* colorTable() const; - /** Sets the terminal color palette used by the display. */ - void setColorTable(const ColorEntry table[]); - /** - * Sets the seed used to generate random colors for the display - * (in color schemes that support them). - */ - void setRandomSeed(uint seed); - /** - * Returns the seed used to generate random colors for the display - * (in color schemes that support them). - */ - uint randomSeed() const; - - /** Sets the opacity of the terminal display. */ - void setOpacity(qreal opacity); - - /** - * This enum describes the location where the scroll bar is positioned in the display widget. - */ - enum ScrollBarPosition - { - /** Do not show the scroll bar. */ - NoScrollBar=0, - /** Show the scroll bar on the left side of the display. */ - ScrollBarLeft=1, - /** Show the scroll bar on the right side of the display. */ - ScrollBarRight=2 - }; - /** - * Specifies whether the terminal display has a vertical scroll bar, and if so whether it - * is shown on the left or right side of the display. - */ - void setScrollBarPosition(ScrollBarPosition position); - - /** - * Sets the current position and range of the display's scroll bar. - * - * @param cursor The position of the scroll bar's thumb. - * @param lines The maximum value of the scroll bar. - */ - void setScroll(int cursor, int lines); - - /** - * Returns the display's filter chain. When the image for the display is updated, - * the text is passed through each filter in the chain. Each filter can define - * hotspots which correspond to certain strings (such as URLs or particular words). - * Depending on the type of the hotspots created by the filter ( returned by Filter::Hotspot::type() ) - * the view will draw visual cues such as underlines on mouse-over for links or translucent - * rectangles for markers. - * - * To add a new filter to the view, call: - * viewWidget->filterChain()->addFilter( filterObject ); - */ - FilterChain* filterChain() const; - - /** - * Updates the filters in the display's filter chain. This will cause - * the hotspots to be updated to match the current image. - * - * WARNING: This function can be expensive depending on the - * image size and number of filters in the filterChain() - * - * TODO - This API does not really allow efficient usage. Revise it so - * that the processing can be done in a better way. - * - * eg: - * - Area of interest may be known ( eg. mouse cursor hovering - * over an area ) - */ - void processFilters(); - - /** - * Returns a list of menu actions created by the filters for the content - * at the given @p position. - */ - QList<QAction*> filterActions(const QPoint& position); - - /** Returns true if the cursor is set to blink or false otherwise. */ - bool blinkingCursor() { return _hasBlinkingCursor; } - /** Specifies whether or not the cursor blinks. */ - void setBlinkingCursor(bool blink); - - void setCtrlDrag(bool enable) { _ctrlDrag=enable; } - bool ctrlDrag() { return _ctrlDrag; } - - /** - * This enum describes the methods for selecting text when - * the user triple-clicks within the display. - */ - enum TripleClickMode - { - /** Select the whole line underneath the cursor. */ - SelectWholeLine, - /** Select from the current cursor position to the end of the line. */ - SelectForwardsFromCursor - }; - /** Sets how the text is selected when the user triple clicks within the display. */ - void setTripleClickMode(TripleClickMode mode) { _tripleClickMode = mode; } - /** See setTripleClickSelectionMode() */ - TripleClickMode tripleClickMode() { return _tripleClickMode; } - - void setLineSpacing(uint); - uint lineSpacing() const; - - void emitSelection(bool useXselection,bool appendReturn); - - /** - * This enum describes the available shapes for the keyboard cursor. - * See setKeyboardCursorShape() - */ - enum KeyboardCursorShape - { - /** A rectangular block which covers the entire area of the cursor character. */ - BlockCursor, - /** - * A single flat line which occupies the space at the bottom of the cursor - * character's area. - */ - UnderlineCursor, - /** - * An cursor shaped like the capital letter 'I', similar to the IBeam - * cursor used in Qt/KDE text editors. - */ - IBeamCursor - }; - /** - * Sets the shape of the keyboard cursor. This is the cursor drawn - * at the position in the terminal where keyboard input will appear. - * - * In addition the terminal display widget also has a cursor for - * the mouse pointer, which can be set using the QWidget::setCursor() - * method. - * - * Defaults to BlockCursor - */ - void setKeyboardCursorShape(KeyboardCursorShape shape); - /** - * Returns the shape of the keyboard cursor. See setKeyboardCursorShape() - */ - KeyboardCursorShape keyboardCursorShape() const; - - /** - * Sets the color used to draw the keyboard cursor. - * - * The keyboard cursor defaults to using the foreground color of the character - * underneath it. - * - * @param useForegroundColor If true, the cursor color will change to match - * the foreground color of the character underneath it as it is moved, in this - * case, the @p color parameter is ignored and the color of the character - * under the cursor is inverted to ensure that it is still readable. - * @param color The color to use to draw the cursor. This is only taken into - * account if @p useForegroundColor is false. - */ - void setKeyboardCursorColor(bool useForegroundColor , const QColor& color); - - /** - * Returns the color of the keyboard cursor, or an invalid color if the keyboard - * cursor color is set to change according to the foreground color of the character - * underneath it. - */ - QColor keyboardCursorColor() const; - - /** - * Returns the number of lines of text which can be displayed in the widget. - * - * This will depend upon the height of the widget and the current font. - * See fontHeight() - */ - int lines() { return _lines; } - /** - * Returns the number of characters of text which can be displayed on - * each line in the widget. - * - * This will depend upon the width of the widget and the current font. - * See fontWidth() - */ - int columns() { return _columns; } - - /** - * Returns the height of the characters in the font used to draw the text in the display. - */ - int fontHeight() { return _fontHeight; } - /** - * Returns the width of the characters in the display. - * This assumes the use of a fixed-width font. - */ - int fontWidth() { return _fontWidth; } - - void setSize(int cols, int lins); - void setFixedSize(int cols, int lins); - - // reimplemented - QSize sizeHint() const; - - /** - * Sets which characters, in addition to letters and numbers, - * are regarded as being part of a word for the purposes - * of selecting words in the display by double clicking on them. - * - * The word boundaries occur at the first and last characters which - * are either a letter, number, or a character in @p wc - * - * @param wc An array of characters which are to be considered parts - * of a word ( in addition to letters and numbers ). - */ - void setWordCharacters(const QString& wc); - /** - * Returns the characters which are considered part of a word for the - * purpose of selecting words in the display with the mouse. - * - * @see setWordCharacters() - */ - QString wordCharacters() { return _wordCharacters; } - - /** - * Sets the type of effect used to alert the user when a 'bell' occurs in the - * terminal session. - * - * The terminal session can trigger the bell effect by calling bell() with - * the alert message. - */ - void setBellMode(int mode); - /** - * Returns the type of effect used to alert the user when a 'bell' occurs in - * the terminal session. - * - * See setBellMode() - */ - int bellMode() { return _bellMode; } - - /** - * This enum describes the different types of sounds and visual effects which - * can be used to alert the user when a 'bell' occurs in the terminal - * session. - */ - enum BellMode - { - /** A system beep. */ - SystemBeepBell=0, - /** - * KDE notification. This may play a sound, show a passive popup - * or perform some other action depending on the user's settings. - */ - NotifyBell=1, - /** A silent, visual bell (eg. inverting the display's colors briefly) */ - VisualBell=2, - /** No bell effects */ - NoBell=3 - }; - - void setSelection(const QString &t); - - /** - * Reimplemented. Has no effect. Use setVTFont() to change the font - * used to draw characters in the display. - */ - virtual void setFont(const QFont &); - - - /** Returns the font used to draw characters in the display */ - QFont getVTFont() { return font(); } - - /** - * Sets the font used to draw the display. Has no effect if @p font - * is larger than the size of the display itself. - */ - void setVTFont(const QFont& font); - - - /** - * Specified whether terminal widget should be at read-only mode - * Defaults to false. - */ - void setReadOnly( bool readonly) { _readonly = readonly; } - - /** - * Specified whether anti-aliasing of text in the terminal display - * is enabled or not. Defaults to enabled. - */ - static void setAntialias( bool antialias ) { _antialiasText = antialias; } - /** - * Returns true if anti-aliasing of text in the terminal is enabled. - */ - static bool antialias() { return _antialiasText; } - - /** - * Sets whether or not the current height and width of the - * terminal in lines and columns is displayed whilst the widget - * is being resized. - */ - void setTerminalSizeHint(bool on) { _terminalSizeHint=on; } - /** - * Returns whether or not the current height and width of - * the terminal in lines and columns is displayed whilst the widget - * is being resized. - */ - bool terminalSizeHint() { return _terminalSizeHint; } - /** - * Sets whether the terminal size display is shown briefly - * after the widget is first shown. - * - * See setTerminalSizeHint() , isTerminalSizeHint() - */ - void setTerminalSizeStartup(bool on) { _terminalSizeStartup=on; } - - void setBidiEnabled(bool set) { _bidiEnabled=set; } - bool isBidiEnabled() { return _bidiEnabled; } - - /** - * Sets the terminal screen section which is displayed in this widget. - * When updateImage() is called, the display fetches the latest character image from the - * the associated terminal screen window. - * - * In terms of the model-view paradigm, the ScreenWindow is the model which is rendered - * by the TerminalDisplay. - */ - void setScreenWindow( ScreenWindow* window ); - /** Returns the terminal screen section which is displayed in this widget. See setScreenWindow() */ - ScreenWindow* screenWindow() const; - - static bool HAVE_TRANSPARENCY; - -public slots: - - /** - * Causes the terminal display to fetch the latest character image from the associated - * terminal screen ( see setScreenWindow() ) and redraw the display. - */ - void updateImage(); - /** - * Causes the terminal display to fetch the latest line status flags from the - * associated terminal screen ( see setScreenWindow() ). - */ - void updateLineProperties(); - - /** Copies the selected text to the clipboard. */ - void copyClipboard(); - /** - * Pastes the content of the clipboard into the - * display. - */ - void pasteClipboard(); - /** - * Pastes the content of the selection into the - * display. - */ - void pasteSelection(); - - /** - * Causes the widget to display or hide a message informing the user that terminal - * output has been suspended (by using the flow control key combination Ctrl+S) - * - * @param suspended True if terminal output has been suspended and the warning message should - * be shown or false to indicate that terminal output has been resumed and that - * the warning message should disappear. - */ - void outputSuspended(bool suspended); - - /** - * Sets whether the program whoose output is being displayed in the view - * is interested in mouse events. - * - * If this is set to true, mouse signals will be emitted by the view when the user clicks, drags - * or otherwise moves the mouse inside the view. - * The user interaction needed to create selections will also change, and the user will be required - * to hold down the shift key to create a selection or perform other mouse activities inside the - * view area - since the program running in the terminal is being allowed to handle normal mouse - * events itself. - * - * @param usesMouse Set to true if the program running in the terminal is interested in mouse events - * or false otherwise. - */ - void setUsesMouse(bool usesMouse); - - /** See setUsesMouse() */ - bool usesMouse() const; - - /** - * Shows a notification that a bell event has occurred in the terminal. - * TODO: More documentation here - */ - void bell(const QString& message); - -signals: - - /** - * Emitted when the user presses a key whilst the terminal widget has focus. - */ - void keyPressedSignal(QKeyEvent *e); - - /** - * Emitted when the user presses the suspend or resume flow control key combinations - * - * @param suspend true if the user pressed Ctrl+S (the suspend output key combination) or - * false if the user pressed Ctrl+Q (the resume output key combination) - */ - void flowControlKeyPressed(bool suspend); - - /** - * A mouse event occurred. - * @param button The mouse button (0 for left button, 1 for middle button, 2 for right button, 3 for release) - * @param column The character column where the event occurred - * @param line The character row where the event occurred - * @param eventType The type of event. 0 for a mouse press / release or 1 for mouse motion - */ - void mouseSignal(int button, int column, int line, int eventType); - void changedFontMetricSignal(int height, int width); - void changedContentSizeSignal(int height, int width); - - /** - * Emitted when the user right clicks on the display, or right-clicks with the Shift - * key held down if usesMouse() is true. - * - * This can be used to display a context menu. - */ - void configureRequest( SessionView*, int state, const QPoint& position ); - - void isBusySelecting(bool); - void sendStringToEmu(const char*); - - void tripleClicked( const QString& text ); - -protected: - virtual bool event( QEvent * ); - - virtual void paintEvent( QPaintEvent * ); - - virtual void showEvent(QShowEvent*); - virtual void hideEvent(QHideEvent*); - virtual void resizeEvent(QResizeEvent*); - - virtual void fontChange(const QFont &font); - - virtual void keyPressEvent(QKeyEvent* event); - virtual void mouseDoubleClickEvent(QMouseEvent* ev); - virtual void mousePressEvent( QMouseEvent* ); - virtual void mouseReleaseEvent( QMouseEvent* ); - virtual void mouseMoveEvent( QMouseEvent* ); - virtual void extendSelection( const QPoint& pos ); - virtual void wheelEvent( QWheelEvent* ); - - virtual bool focusNextPrevChild( bool next ); - - // drag and drop - virtual void dragEnterEvent(QDragEnterEvent* event); - virtual void dropEvent(QDropEvent* event); - void doDrag(); - enum DragState { diNone, diPending, diDragging }; - - struct _dragInfo { - DragState state; - QPoint start; - QDrag *dragObject; - } dragInfo; - - virtual int charClass(quint16) const; - - void clearImage(); - - void mouseTripleClickEvent(QMouseEvent* ev); - - // reimplemented - virtual void inputMethodEvent ( QInputMethodEvent* event ); - virtual QVariant inputMethodQuery( Qt::InputMethodQuery query ) const; - -protected slots: - - void scrollBarPositionChanged(int value); - void blinkEvent(); - void blinkCursorEvent(); - - //Renables bell noises and visuals. Used to disable further bells for a short period of time - //after emitting the first in a sequence of bell events. - void enableBell(); - -private slots: - - void swapColorTable(); - void tripleClickTimeout(); // resets possibleTripleClick - -private: - - // -- Drawing helpers -- - - // divides the part of the display specified by 'rect' into - // fragments according to their colors and styles and calls - // drawTextFragment() to draw the fragments - void drawContents(QPainter &paint, const QRect &rect); - // draws a section of text, all the text in this section - // has a common color and style - void drawTextFragment(QPainter& painter, const QRect& rect, - const QString& text, const Character* style); - // draws the background for a text fragment - // if useOpacitySetting is true then the color's alpha value will be set to - // the display's transparency (set with setOpacity()), otherwise the background - // will be drawn fully opaque - void drawBackground(QPainter& painter, const QRect& rect, const QColor& color, - bool useOpacitySetting); - // draws the cursor character - void drawCursor(QPainter& painter, const QRect& rect , const QColor& foregroundColor, - const QColor& backgroundColor , bool& invertColors); - // draws the characters or line graphics in a text fragment - void drawCharacters(QPainter& painter, const QRect& rect, const QString& text, - const Character* style, bool invertCharacterColor); - // draws a string of line graphics - void drawLineCharString(QPainter& painter, int x, int y, - const QString& str, const Character* attributes); - - // draws the preedit string for input methods - void drawInputMethodPreeditString(QPainter& painter , const QRect& rect); - - // -- - - // maps an area in the character image to an area on the widget - QRect imageToWidget(const QRect& imageArea) const; - - // maps a point on the widget to the position ( ie. line and column ) - // of the character at that point. - void getCharacterPosition(const QPoint& widgetPoint,int& line,int& column) const; - - // the area where the preedit string for input methods will be draw - QRect preeditRect() const; - - // shows a notification window in the middle of the widget indicating the terminal's - // current size in columns and lines - void showResizeNotification(); - - // scrolls the image by a number of lines. - // 'lines' may be positive ( to scroll the image down ) - // or negative ( to scroll the image up ) - // 'region' is the part of the image to scroll - currently only - // the top, bottom and height of 'region' are taken into account, - // the left and right are ignored. - void scrollImage(int lines , const QRect& region); - - void calcGeometry(); - void propagateSize(); - void updateImageSize(); - void makeImage(); - - void paintFilters(QPainter& painter); - - // returns a region covering all of the areas of the widget which contain - // a hotspot - QRegion hotSpotRegion() const; - - // returns the position of the cursor in columns and lines - QPoint cursorPosition() const; - - // the window onto the terminal screen which this display - // is currently showing. - QPointer<ScreenWindow> _screenWindow; - - bool _allowBell; - - QGridLayout* _gridLayout; - - bool _fixedFont; // has fixed pitch - int _fontHeight; // height - int _fontWidth; // width - int _fontAscent; // ascend - - int _leftMargin; // offset - int _topMargin; // offset - - int _lines; // the number of lines that can be displayed in the widget - int _columns; // the number of columns that can be displayed in the widget - - int _usedLines; // the number of lines that are actually being used, this will be less - // than 'lines' if the character image provided with setImage() is smaller - // than the maximum image size which can be displayed - - int _usedColumns; // the number of columns that are actually being used, this will be less - // than 'columns' if the character image provided with setImage() is smaller - // than the maximum image size which can be displayed - - int _contentHeight; - int _contentWidth; - Character* _image; // [lines][columns] - // only the area [usedLines][usedColumns] in the image contains valid data - - int _imageSize; - QVector<LineProperty> _lineProperties; - - ColorEntry _colorTable[TABLE_COLORS]; - uint _randomSeed; - - bool _resizing; - bool _terminalSizeHint; - bool _terminalSizeStartup; - bool _bidiEnabled; - bool _mouseMarks; - - QPoint _iPntSel; // initial selection point - QPoint _pntSel; // current selection point - QPoint _tripleSelBegin; // help avoid flicker - int _actSel; // selection state - bool _wordSelectionMode; - bool _lineSelectionMode; - bool _preserveLineBreaks; - bool _columnSelectionMode; - - QClipboard* _clipboard; - QScrollBar* _scrollBar; - ScrollBarPosition _scrollbarLocation; - QString _wordCharacters; - int _bellMode; - - bool _blinking; // hide text in paintEvent - bool _hasBlinker; // has characters to blink - bool _cursorBlinking; // hide cursor in paintEvent - bool _hasBlinkingCursor; // has blinking cursor enabled - bool _ctrlDrag; // require Ctrl key for drag - TripleClickMode _tripleClickMode; - bool _isFixedSize; //Columns / lines are locked. - QTimer* _blinkTimer; // active when hasBlinker - QTimer* _blinkCursorTimer; // active when hasBlinkingCursor - -// KMenu* _drop; - QString _dropText; - int _dndFileCount; - - bool _possibleTripleClick; // is set in mouseDoubleClickEvent and deleted - // after QApplication::doubleClickInterval() delay - - - QLabel* _resizeWidget; - QTimer* _resizeTimer; - - bool _flowControlWarningEnabled; - - //widgets related to the warning message that appears when the user presses Ctrl+S to suspend - //terminal output - informing them what has happened and how to resume output - QLabel* _outputSuspendedLabel; - - uint _lineSpacing; - - bool _colorsInverted; // true during visual bell - - QSize _size; - - QRgb _blendColor; - - // list of filters currently applied to the display. used for links and - // search highlight - TerminalImageFilterChain* _filterChain; - QRect _mouseOverHotspotArea; - - KeyboardCursorShape _cursorShape; - - // custom cursor color. if this is invalid then the foreground - // color of the character under the cursor is used - QColor _cursorColor; - - - struct InputMethodData - { - QString preeditString; - QRect previousPreeditRect; - }; - InputMethodData _inputMethodData; - - static bool _antialiasText; // do we antialias or not - - //the delay in milliseconds between redrawing blinking text - static const int BLINK_DELAY = 500; - static const int DEFAULT_LEFT_MARGIN = 1; - static const int DEFAULT_TOP_MARGIN = 1; - - bool _readonly; - -public: - static void setTransparencyEnabled(bool enable) - { - HAVE_TRANSPARENCY = enable; - } -}; - -#endif // TERMINALDISPLAY_H
--- a/libqterminal/TerminalModel.cpp +++ b/libqterminal/TerminalModel.cpp @@ -39,7 +39,7 @@ #include <QtCore/QStringList> #include <QtCore> -#include "SessionView.h" +#include "TerminalView.h" #include "Vt102Emulation.h" TerminalModel::TerminalModel(KPty *kpty) : @@ -103,12 +103,12 @@ emulation()->setCodec(codec); } -QList<SessionView*> TerminalModel::views() const +QList<TerminalView*> TerminalModel::views() const { return _views; } -void TerminalModel::addView(SessionView* widget) +void TerminalModel::addView(TerminalView* widget) { Q_ASSERT( !_views.contains(widget) ); @@ -146,7 +146,7 @@ void TerminalModel::viewDestroyed(QObject* view) { - SessionView* display = (SessionView*)view; + TerminalView* display = (TerminalView*)view; Q_ASSERT( _views.contains(display) ); @@ -159,7 +159,7 @@ (void)bytesWritten; } -void TerminalModel::removeView(SessionView* widget) +void TerminalModel::removeView(TerminalView* widget) { _views.removeAll(widget); @@ -257,7 +257,7 @@ void TerminalModel::updateTerminalSize() { - QListIterator<SessionView*> viewIter(_views); + QListIterator<TerminalView*> viewIter(_views); int minLines = -1; int minColumns = -1; @@ -271,7 +271,7 @@ //select largest number of lines and columns that will fit in all visible views while ( viewIter.hasNext() ) { - SessionView* view = viewIter.next(); + TerminalView* view = viewIter.next(); if ( view->isHidden() == false && view->lines() >= VIEW_LINES_THRESHOLD && view->columns() >= VIEW_COLUMNS_THRESHOLD )
--- a/libqterminal/TerminalModel.h +++ b/libqterminal/TerminalModel.h @@ -41,7 +41,7 @@ class Emulation; class PseudoTerminal; -class SessionView; +class TerminalView; /** * Represents a terminal session consisting of a pseudo-teletype and a terminal emulation. @@ -100,7 +100,7 @@ * Views can be removed using removeView(). The session is automatically * closed when the last view is removed. */ - void addView(SessionView* widget); + void addView(TerminalView* widget); /** * Removes a view from this session. When the last view is removed, * the session will be closed automatically. @@ -108,12 +108,12 @@ * @p widget will no longer display output from or send input * to the terminal */ - void removeView(SessionView* widget); + void removeView(TerminalView* widget); /** * Returns the views connected to this session */ - QList<SessionView*> views() const; + QList<TerminalView*> views() const; /** * Returns the terminal emulation instance being used to encode / decode @@ -338,7 +338,7 @@ PseudoTerminal* _shellProcess; Emulation* _emulation; - QList<SessionView*> _views; + QList<TerminalView*> _views; bool _monitorActivity; bool _monitorSilence;
new file mode 100644 --- /dev/null +++ b/libqterminal/TerminalView.cpp @@ -0,0 +1,2716 @@ +/* + This file is part of Konsole, a terminal emulator for KDE. + + Copyright (C) 2006-7 by Robert Knight <robertknight@gmail.com> + Copyright (C) 1997,1998 by Lars Doelle <lars.doelle@on-line.de> + + Rewritten for QT4 by e_k <e_k at users.sourceforge.net>, Copyright (C)2008 + Copyright (C) 2012 Jacob Dawid <jacob.dawid@googlemail.com> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + 02110-1301 USA. +*/ + +// Own +#include "TerminalView.h" + +// Qt +#include <QtGui/QApplication> +#include <QtGui/QBoxLayout> +#include <QtGui/QClipboard> +#include <QtGui/QKeyEvent> +#include <QtCore/QEvent> +#include <QtCore/QTime> +#include <QtCore/QFile> +#include <QtGui/QGridLayout> +#include <QtGui/QLabel> +#include <QtGui/QLayout> +#include <QtGui/QPainter> +#include <QtGui/QPixmap> +#include <QtGui/QScrollBar> +#include <QtGui/QStyle> +#include <QtCore> +#include <QtGui> + +#include "Filter.h" +#include "konsole_wcwidth.h" +#include "ScreenWindow.h" +#include "TerminalCharacterDecoder.h" + +#ifndef loc +#define loc(X,Y) ((Y)*_columns+(X)) +#endif + +#define yMouseScroll 1 + +#define REPCHAR "ABCDEFGHIJKLMNOPQRSTUVWXYZ" \ + "abcdefgjijklmnopqrstuvwxyz" \ + "0123456789./+@" + +// scroll increment used when dragging selection at top/bottom of window. + +// static +bool TerminalView::_antialiasText = true; +bool TerminalView::HAVE_TRANSPARENCY = false; + +/* ------------------------------------------------------------------------- */ +/* */ +/* Colors */ +/* */ +/* ------------------------------------------------------------------------- */ + +/* Note that we use ANSI color order (bgr), while IBMPC color order is (rgb) + + Code 0 1 2 3 4 5 6 7 + ----------- ------- ------- ------- ------- ------- ------- ------- ------- + ANSI (bgr) Black Red Green Yellow Blue Magenta Cyan White + IBMPC (rgb) Black Blue Green Cyan Red Magenta Yellow White +*/ + +ScreenWindow* TerminalView::screenWindow() const +{ + return _screenWindow; +} +void TerminalView::setScreenWindow(ScreenWindow* window) +{ + // disconnect existing screen window if any + if ( _screenWindow ) + { + disconnect( _screenWindow , 0 , this , 0 ); + } + + _screenWindow = window; + + if ( window ) + { +//#warning "The order here is not specified - does it matter whether updateImage or updateLineProperties comes first?" + connect( _screenWindow , SIGNAL(outputChanged()) , this , SLOT(updateLineProperties()) ); + connect( _screenWindow , SIGNAL(outputChanged()) , this , SLOT(updateImage()) ); + window->setWindowLines(_lines); + } +} + +const ColorEntry* TerminalView::colorTable() const +{ + return _colorTable; +} + +void TerminalView::setColorTable(const ColorEntry table[]) +{ + for (int i = 0; i < TABLE_COLORS; i++) + _colorTable[i] = table[i]; + + QPalette p = palette(); + p.setColor( backgroundRole(), _colorTable[DEFAULT_BACK_COLOR].color ); + setPalette( p ); + + // Avoid propagating the palette change to the scroll bar + _scrollBar->setPalette( QApplication::palette() ); + + update(); +} + +/* ------------------------------------------------------------------------- */ +/* */ +/* Font */ +/* */ +/* ------------------------------------------------------------------------- */ + +/* + The VT100 has 32 special graphical characters. The usual vt100 extended + xterm fonts have these at 0x00..0x1f. + + QT's iso mapping leaves 0x00..0x7f without any changes. But the graphicals + come in here as proper unicode characters. + + We treat non-iso10646 fonts as VT100 extended and do the requiered mapping + from unicode to 0x00..0x1f. The remaining translation is then left to the + QCodec. +*/ + +static inline bool isLineChar(quint16 c) { return ((c & 0xFF80) == 0x2500);} +static inline bool isLineCharString(const QString& string) +{ + return (string.length() > 0) && (isLineChar(string.at(0).unicode())); +} + + +// assert for i in [0..31] : vt100extended(vt100_graphics[i]) == i. + +unsigned short vt100_graphics[32] = +{ // 0/8 1/9 2/10 3/11 4/12 5/13 6/14 7/15 + 0x0020, 0x25C6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, + 0x00b1, 0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, + 0xF800, 0xF801, 0x2500, 0xF803, 0xF804, 0x251c, 0x2524, 0x2534, + 0x252c, 0x2502, 0x2264, 0x2265, 0x03C0, 0x2260, 0x00A3, 0x00b7 +}; + +void TerminalView::fontChange(const QFont&) +{ + QFontMetrics fm(font()); + _fontHeight = fm.height() + _lineSpacing; + + + // waba TerminalDisplay 1.123: + // "Base character width on widest ASCII character. This prevents too wide + // characters in the presence of double wide (e.g. Japanese) characters." + // Get the width from representative normal width characters + _fontWidth = qRound((double)fm.width(REPCHAR)/(double)strlen(REPCHAR)); + + _fixedFont = true; + + int fw = fm.width(REPCHAR[0]); + for(unsigned int i=1; i< strlen(REPCHAR); i++) + { + if (fw != fm.width(REPCHAR[i])) + { + _fixedFont = false; + break; + } + } + + if (_fontWidth < 1) + _fontWidth=1; + + _fontAscent = fm.ascent(); + + emit changedFontMetricSignal( _fontHeight, _fontWidth ); + propagateSize(); + update(); +} + +void TerminalView::setVTFont(const QFont& f) +{ + QFont font = f; + + QFontMetrics metrics(font); + + if ( metrics.height() < height() && metrics.maxWidth() < width() ) + { + // hint that text should be drawn without anti-aliasing. + // depending on the user's font configuration, this may not be respected + if (!_antialiasText) + font.setStyleStrategy( QFont::NoAntialias ); + + // experimental optimization. Konsole assumes that the terminal is using a + // mono-spaced font, in which case kerning information should have an effect. + // Disabling kerning saves some computation when rendering text. + font.setKerning(false); + + QWidget::setFont(font); + fontChange(font); + } +} + +void TerminalView::setFont(const QFont &) +{ + // ignore font change request if not coming from konsole itself +} + +/* ------------------------------------------------------------------------- */ +/* */ +/* Constructor / Destructor */ +/* */ +/* ------------------------------------------------------------------------- */ + +TerminalView::TerminalView(QWidget *parent) +:QWidget(parent) +,_screenWindow(0) +,_allowBell(true) +,_gridLayout(0) +,_fontHeight(1) +,_fontWidth(1) +,_fontAscent(1) +,_lines(1) +,_columns(1) +,_usedLines(1) +,_usedColumns(1) +,_contentHeight(1) +,_contentWidth(1) +,_image(0) +,_randomSeed(0) +,_resizing(false) +,_terminalSizeHint(false) +,_terminalSizeStartup(true) +,_bidiEnabled(false) +,_actSel(0) +,_wordSelectionMode(false) +,_lineSelectionMode(false) +,_preserveLineBreaks(false) +,_columnSelectionMode(false) +,_scrollbarLocation(NoScrollBar) +,_wordCharacters(":@-./_~") +,_bellMode(SystemBeepBell) +,_blinking(false) +,_cursorBlinking(false) +,_hasBlinkingCursor(false) +,_ctrlDrag(false) +,_tripleClickMode(SelectWholeLine) +,_isFixedSize(false) +,_possibleTripleClick(false) +,_resizeWidget(0) +,_resizeTimer(0) +,_outputSuspendedLabel(0) +,_lineSpacing(0) +,_colorsInverted(false) +,_blendColor(qRgba(0,0,0,0xff)) +,_filterChain(new TerminalImageFilterChain()) +,_cursorShape(BlockCursor) +,_readonly(false) +{ + // terminal applications are not designed with Right-To-Left in mind, + // so the layout is forced to Left-To-Right + setLayoutDirection(Qt::LeftToRight); + + // The offsets are not yet calculated. + // Do not calculate these too often to be more smoothly when resizing + // konsole in opaque mode. + _topMargin = DEFAULT_TOP_MARGIN; + _leftMargin = DEFAULT_LEFT_MARGIN; + + // create scroll bar for scrolling output up and down + // set the scroll bar's slider to occupy the whole area of the scroll bar initially + _scrollBar = new QScrollBar(this); + setScroll(0,0); + _scrollBar->setCursor( Qt::ArrowCursor ); + connect(_scrollBar, SIGNAL(valueChanged(int)), this, + SLOT(scrollBarPositionChanged(int))); + + // setup timers for blinking cursor and text + _blinkTimer = new QTimer(this); + connect(_blinkTimer, SIGNAL(timeout()), this, SLOT(blinkEvent())); + _blinkCursorTimer = new QTimer(this); + connect(_blinkCursorTimer, SIGNAL(timeout()), this, SLOT(blinkCursorEvent())); + +// QCursor::setAutoHideCursor( this, true ); + + setUsesMouse(true); + setColorTable(base_color_table); + setMouseTracking(true); + + // Enable drag and drop + setAcceptDrops(true); // attempt + dragInfo.state = diNone; + + setFocusPolicy( Qt::WheelFocus ); + + // enable input method support + setAttribute(Qt::WA_InputMethodEnabled, true); + + // this is an important optimization, it tells Qt + // that TerminalDisplay will handle repainting its entire area. + setAttribute(Qt::WA_OpaquePaintEvent); + + _gridLayout = new QGridLayout(this); + _gridLayout->setMargin(0); + + setLayout( _gridLayout ); +} + +TerminalView::~TerminalView() +{ + qApp->removeEventFilter( this ); + + delete[] _image; + + delete _gridLayout; + delete _outputSuspendedLabel; + delete _filterChain; +} + +/* ------------------------------------------------------------------------- */ +/* */ +/* Display Operations */ +/* */ +/* ------------------------------------------------------------------------- */ + +/** + A table for emulating the simple (single width) unicode drawing chars. + It represents the 250x - 257x glyphs. If it's zero, we can't use it. + if it's not, it's encoded as follows: imagine a 5x5 grid where the points are numbered + 0 to 24 left to top, top to bottom. Each point is represented by the corresponding bit. + + Then, the pixels basically have the following interpretation: + _|||_ + -...- + -...- + -...- + _|||_ + +where _ = none + | = vertical line. + - = horizontal line. + */ + + +enum LineEncode +{ + TopL = (1<<1), + TopC = (1<<2), + TopR = (1<<3), + + LeftT = (1<<5), + Int11 = (1<<6), + Int12 = (1<<7), + Int13 = (1<<8), + RightT = (1<<9), + + LeftC = (1<<10), + Int21 = (1<<11), + Int22 = (1<<12), + Int23 = (1<<13), + RightC = (1<<14), + + LeftB = (1<<15), + Int31 = (1<<16), + Int32 = (1<<17), + Int33 = (1<<18), + RightB = (1<<19), + + BotL = (1<<21), + BotC = (1<<22), + BotR = (1<<23) +}; + +#include "LineFont.h" + +static void drawLineChar(QPainter& paint, int x, int y, int w, int h, uchar code) +{ + //Calculate cell midpoints, end points. + int cx = x + w/2; + int cy = y + h/2; + int ex = x + w - 1; + int ey = y + h - 1; + + quint32 toDraw = LineChars[code]; + + //Top _lines: + if (toDraw & TopL) + paint.drawLine(cx-1, y, cx-1, cy-2); + if (toDraw & TopC) + paint.drawLine(cx, y, cx, cy-2); + if (toDraw & TopR) + paint.drawLine(cx+1, y, cx+1, cy-2); + + //Bot _lines: + if (toDraw & BotL) + paint.drawLine(cx-1, cy+2, cx-1, ey); + if (toDraw & BotC) + paint.drawLine(cx, cy+2, cx, ey); + if (toDraw & BotR) + paint.drawLine(cx+1, cy+2, cx+1, ey); + + //Left _lines: + if (toDraw & LeftT) + paint.drawLine(x, cy-1, cx-2, cy-1); + if (toDraw & LeftC) + paint.drawLine(x, cy, cx-2, cy); + if (toDraw & LeftB) + paint.drawLine(x, cy+1, cx-2, cy+1); + + //Right _lines: + if (toDraw & RightT) + paint.drawLine(cx+2, cy-1, ex, cy-1); + if (toDraw & RightC) + paint.drawLine(cx+2, cy, ex, cy); + if (toDraw & RightB) + paint.drawLine(cx+2, cy+1, ex, cy+1); + + //Intersection points. + if (toDraw & Int11) + paint.drawPoint(cx-1, cy-1); + if (toDraw & Int12) + paint.drawPoint(cx, cy-1); + if (toDraw & Int13) + paint.drawPoint(cx+1, cy-1); + + if (toDraw & Int21) + paint.drawPoint(cx-1, cy); + if (toDraw & Int22) + paint.drawPoint(cx, cy); + if (toDraw & Int23) + paint.drawPoint(cx+1, cy); + + if (toDraw & Int31) + paint.drawPoint(cx-1, cy+1); + if (toDraw & Int32) + paint.drawPoint(cx, cy+1); + if (toDraw & Int33) + paint.drawPoint(cx+1, cy+1); + +} + +void TerminalView::drawLineCharString( QPainter& painter, int x, int y, const QString& str, + const Character* attributes) +{ + const QPen& currentPen = painter.pen(); + + if ( attributes->rendition & RE_BOLD ) + { + QPen boldPen(currentPen); + boldPen.setWidth(3); + painter.setPen( boldPen ); + } + + for (int i=0 ; i < str.length(); i++) + { + uchar code = str[i].cell(); + if (LineChars[code]) + drawLineChar(painter, x + (_fontWidth*i), y, _fontWidth, _fontHeight, code); + } + + painter.setPen( currentPen ); +} + +void TerminalView::setKeyboardCursorShape(KeyboardCursorShape shape) +{ + _cursorShape = shape; +} +TerminalView::KeyboardCursorShape TerminalView::keyboardCursorShape() const +{ + return _cursorShape; +} +void TerminalView::setKeyboardCursorColor(bool useForegroundColor, const QColor& color) +{ + if (useForegroundColor) + _cursorColor = QColor(); // an invalid color means that + // the foreground color of the + // current character should + // be used + + else + _cursorColor = color; +} +QColor TerminalView::keyboardCursorColor() const +{ + return _cursorColor; +} + +void TerminalView::setOpacity(qreal opacity) +{ + QColor color(_blendColor); + color.setAlphaF(opacity); + + // enable automatic background filling to prevent the display + // flickering if there is no transparency + if ( color.alpha() == 255 ) + { + setAutoFillBackground(true); + } + else + { + setAutoFillBackground(false); + } + + _blendColor = color.rgba(); +} + +void TerminalView::drawBackground(QPainter& painter, const QRect& rect, const QColor& backgroundColor, bool useOpacitySetting ) +{ + // the area of the widget showing the contents of the terminal display is drawn + // using the background color from the color scheme set with setColorTable() + // + // the area of the widget behind the scroll-bar is drawn using the background + // brush from the scroll-bar's palette, to give the effect of the scroll-bar + // being outside of the terminal display and visual consistency with other KDE + // applications. + // + QRect scrollBarArea = _scrollBar->isVisible() ? + rect.intersected(_scrollBar->geometry()) : + QRect(); + QRegion contentsRegion = QRegion(rect).subtracted(scrollBarArea); + QRect contentsRect = contentsRegion.boundingRect(); + + if ( HAVE_TRANSPARENCY && qAlpha(_blendColor) < 0xff && useOpacitySetting ) + { + QColor color(backgroundColor); + color.setAlpha(qAlpha(_blendColor)); + + painter.save(); + painter.setCompositionMode(QPainter::CompositionMode_Source); + painter.fillRect(contentsRect, color); + painter.restore(); + } + else { + painter.fillRect(contentsRect, backgroundColor); + } + + painter.fillRect(scrollBarArea,_scrollBar->palette().background()); +} + +void TerminalView::drawCursor(QPainter& painter, + const QRect& rect, + const QColor& foregroundColor, + const QColor& /*backgroundColor*/, + bool& invertCharacterColor) +{ + QRect cursorRect = rect; + cursorRect.setHeight(_fontHeight - _lineSpacing - 1); + + if (!_cursorBlinking) + { + if ( _cursorColor.isValid() ) + painter.setPen(_cursorColor); + else { + painter.setPen(foregroundColor); + } + + if ( _cursorShape == BlockCursor ) + { + // draw the cursor outline, adjusting the area so that + // it is draw entirely inside 'rect' + int penWidth = qMax(1,painter.pen().width()); + + painter.drawRect(cursorRect.adjusted(penWidth/2, + penWidth/2, + - penWidth/2 - penWidth%2, + - penWidth/2 - penWidth%2)); + if ( hasFocus() ) + { + painter.fillRect(cursorRect, _cursorColor.isValid() ? _cursorColor : foregroundColor); + + if ( !_cursorColor.isValid() ) + { + // invert the colour used to draw the text to ensure that the character at + // the cursor position is readable + invertCharacterColor = true; + } + } + } + else if ( _cursorShape == UnderlineCursor ) + painter.drawLine(cursorRect.left(), + cursorRect.bottom(), + cursorRect.right(), + cursorRect.bottom()); + else if ( _cursorShape == IBeamCursor ) + painter.drawLine(cursorRect.left(), + cursorRect.top(), + cursorRect.left(), + cursorRect.bottom()); + + } +} + +void TerminalView::drawCharacters(QPainter& painter, + const QRect& rect, + const QString& text, + const Character* style, + bool invertCharacterColor) +{ + // don't draw text which is currently blinking + if ( _blinking && (style->rendition & RE_BLINK) ) + return; + + // setup bold and underline + bool useBold = style->rendition & RE_BOLD || style->isBold(_colorTable) || font().bold(); + bool useUnderline = style->rendition & RE_UNDERLINE || font().underline(); + + QFont font = painter.font(); + if ( font.bold() != useBold + || font.underline() != useUnderline ) + { + font.setBold(useBold); + font.setUnderline(useUnderline); + painter.setFont(font); + } + + const CharacterColor& textColor = ( invertCharacterColor ? style->backgroundColor : style->foregroundColor ); + const QColor color = textColor.color(_colorTable); + + QPen pen = painter.pen(); + if ( pen.color() != color ) + { + pen.setColor(color); + painter.setPen(color); + } + // draw text + if ( isLineCharString(text) ) { + drawLineCharString(painter,rect.x(),rect.y(),text,style); + } + else + { + // the drawText(rect,flags,string) overload is used here with null flags + // instead of drawText(rect,string) because the (rect,string) overload causes + // the application's default layout direction to be used instead of + // the widget-specific layout direction, which should always be + // Qt::LeftToRight for this widget + painter.drawText(rect,0,text); + } +} + +void TerminalView::drawTextFragment(QPainter& painter , + const QRect& rect, + const QString& text, + const Character* style) +{ + painter.save(); + + // setup painter + const QColor foregroundColor = style->foregroundColor.color(_colorTable); + const QColor backgroundColor = style->backgroundColor.color(_colorTable); + + // draw background if different from the display's background color + if ( backgroundColor != palette().background().color() ) + drawBackground(painter,rect,backgroundColor, false /* do not use transparency */); + + // draw cursor shape if the current character is the cursor + // this may alter the foreground and background colors + bool invertCharacterColor = false; + + if ( style->rendition & RE_CURSOR ) + drawCursor(painter,rect,foregroundColor,backgroundColor,invertCharacterColor); + // draw text + drawCharacters(painter,rect,text,style,invertCharacterColor); + + painter.restore(); +} + +void TerminalView::setRandomSeed(uint randomSeed) { _randomSeed = randomSeed; } +uint TerminalView::randomSeed() const { return _randomSeed; } + +#if 0 +/*! + Set XIM Position +*/ +void TerminalDisplay::setCursorPos(const int curx, const int cury) +{ + QPoint tL = contentsRect().topLeft(); + int tLx = tL.x(); + int tLy = tL.y(); + + int xpos, ypos; + ypos = _topMargin + tLy + _fontHeight*(cury-1) + _fontAscent; + xpos = _leftMargin + tLx + _fontWidth*curx; + //setMicroFocusHint(xpos, ypos, 0, _fontHeight); //### ??? + // fprintf(stderr, "x/y = %d/%d\txpos/ypos = %d/%d\n", curx, cury, xpos, ypos); + _cursorLine = cury; + _cursorCol = curx; +} +#endif + +// scrolls the image by 'lines', down if lines > 0 or up otherwise. +// +// the terminal emulation keeps track of the scrolling of the character +// image as it receives input, and when the view is updated, it calls scrollImage() +// with the final scroll amount. this improves performance because scrolling the +// display is much cheaper than re-rendering all the text for the +// part of the image which has moved up or down. +// Instead only new lines have to be drawn +// +// note: it is important that the area of the display which is +// scrolled aligns properly with the character grid - +// which has a top left point at (_leftMargin,_topMargin) , +// a cell width of _fontWidth and a cell height of _fontHeight). +void TerminalView::scrollImage(int lines , const QRect& screenWindowRegion) +{ + // if the flow control warning is enabled this will interfere with the + // scrolling optimisations and cause artifacts. the simple solution here + // is to just disable the optimisation whilst it is visible + if ( _outputSuspendedLabel && _outputSuspendedLabel->isVisible() ) { + return; + } + + // constrain the region to the display + // the bottom of the region is capped to the number of lines in the display's + // internal image - 2, so that the height of 'region' is strictly less + // than the height of the internal image. + QRect region = screenWindowRegion; + region.setBottom( qMin(region.bottom(),this->_lines-2) ); + + if ( lines == 0 + || _image == 0 + || !region.isValid() + || (region.top() + abs(lines)) >= region.bottom() + || this->_lines <= region.height() ) return; + + QRect scrollRect; + + void* firstCharPos = &_image[ region.top() * this->_columns ]; + void* lastCharPos = &_image[ (region.top() + abs(lines)) * this->_columns ]; + + int top = _topMargin + (region.top() * _fontHeight); + int linesToMove = region.height() - abs(lines); + int bytesToMove = linesToMove * + this->_columns * + sizeof(Character); + + Q_ASSERT( linesToMove > 0 ); + Q_ASSERT( bytesToMove > 0 ); + + //scroll internal image + if ( lines > 0 ) + { + // check that the memory areas that we are going to move are valid + Q_ASSERT( (char*)lastCharPos + bytesToMove < + (char*)(_image + (this->_lines * this->_columns)) ); + + Q_ASSERT( (lines*this->_columns) < _imageSize ); + + //scroll internal image down + memmove( firstCharPos , lastCharPos , bytesToMove ); + + //set region of display to scroll, making sure that + //the region aligns correctly to the character grid + scrollRect = QRect( _leftMargin , top, + this->_usedColumns * _fontWidth , + linesToMove * _fontHeight ); + } + else + { + // check that the memory areas that we are going to move are valid + Q_ASSERT( (char*)firstCharPos + bytesToMove < + (char*)(_image + (this->_lines * this->_columns)) ); + + //scroll internal image up + memmove( lastCharPos , firstCharPos , bytesToMove ); + + //set region of the display to scroll, making sure that + //the region aligns correctly to the character grid + QPoint topPoint( _leftMargin , top + abs(lines)*_fontHeight ); + + scrollRect = QRect( topPoint , + QSize( this->_usedColumns*_fontWidth , + linesToMove * _fontHeight )); + } + + //scroll the display vertically to match internal _image + scroll( 0 , _fontHeight * (-lines) , scrollRect ); +} + +QRegion TerminalView::hotSpotRegion() const +{ + QRegion region; + foreach( Filter::HotSpot* hotSpot , _filterChain->hotSpots() ) + { + QRect rect; + rect.setLeft(hotSpot->startColumn()); + rect.setTop(hotSpot->startLine()); + rect.setRight(hotSpot->endColumn()); + rect.setBottom(hotSpot->endLine()); + + region |= imageToWidget(rect); + } + return region; +} + +void TerminalView::processFilters() +{ + if (!_screenWindow) + return; + + QRegion preUpdateHotSpots = hotSpotRegion(); + + // use _screenWindow->getImage() here rather than _image because + // other classes may call processFilters() when this display's + // ScreenWindow emits a scrolled() signal - which will happen before + // updateImage() is called on the display and therefore _image is + // out of date at this point + _filterChain->setImage( _screenWindow->getImage(), + _screenWindow->windowLines(), + _screenWindow->windowColumns(), + _screenWindow->getLineProperties() ); + _filterChain->process(); + + QRegion postUpdateHotSpots = hotSpotRegion(); + + update( preUpdateHotSpots | postUpdateHotSpots ); +} + +void TerminalView::updateImage() +{ + if ( !_screenWindow ) + return; + + // optimization - scroll the existing image where possible and + // avoid expensive text drawing for parts of the image that + // can simply be moved up or down + scrollImage( _screenWindow->scrollCount() , + _screenWindow->scrollRegion() ); + _screenWindow->resetScrollCount(); + + Character* const newimg = _screenWindow->getImage(); + int lines = _screenWindow->windowLines(); + int columns = _screenWindow->windowColumns(); + + setScroll( _screenWindow->currentLine() , _screenWindow->lineCount() ); + + if (!_image) + updateImageSize(); // Create _image + + Q_ASSERT( this->_usedLines <= this->_lines ); + Q_ASSERT( this->_usedColumns <= this->_columns ); + + int y,x,len; + + QPoint tL = contentsRect().topLeft(); + + int tLx = tL.x(); + int tLy = tL.y(); + _hasBlinker = false; + + CharacterColor cf; // undefined + CharacterColor _clipboard; // undefined + int cr = -1; // undefined + + const int linesToUpdate = qMin(this->_lines, qMax(0,lines )); + const int columnsToUpdate = qMin(this->_columns,qMax(0,columns)); + + QChar *disstrU = new QChar[columnsToUpdate]; + char *dirtyMask = new char[columnsToUpdate+2]; + QRegion dirtyRegion; + + // debugging variable, this records the number of lines that are found to + // be 'dirty' ( ie. have changed from the old _image to the new _image ) and + // which therefore need to be repainted + int dirtyLineCount = 0; + + for (y = 0; y < linesToUpdate; y++) + { + const Character* currentLine = &_image[y*this->_columns]; + const Character* const newLine = &newimg[y*columns]; + + bool updateLine = false; + + // The dirty mask indicates which characters need repainting. We also + // mark surrounding neighbours dirty, in case the character exceeds + // its cell boundaries + memset(dirtyMask, 0, columnsToUpdate+2); + + for( x = 0 ; x < columnsToUpdate ; x++) + { + if ( newLine[x] != currentLine[x] ) + { + dirtyMask[x] = true; + } + } + + if (!_resizing) // not while _resizing, we're expecting a paintEvent + for (x = 0; x < columnsToUpdate; x++) + { + _hasBlinker |= (newLine[x].rendition & RE_BLINK); + + // Start drawing if this character or the next one differs. + // We also take the next one into account to handle the situation + // where characters exceed their cell width. + if (dirtyMask[x]) + { + quint16 c = newLine[x+0].character; + if ( !c ) + continue; + int p = 0; + disstrU[p++] = c; //fontMap(c); + bool lineDraw = isLineChar(c); + bool doubleWidth = (x+1 == columnsToUpdate) ? false : (newLine[x+1].character == 0); + cr = newLine[x].rendition; + _clipboard = newLine[x].backgroundColor; + if (newLine[x].foregroundColor != cf) cf = newLine[x].foregroundColor; + int lln = columnsToUpdate - x; + for (len = 1; len < lln; len++) + { + const Character& ch = newLine[x+len]; + + if (!ch.character) + continue; // Skip trailing part of multi-col chars. + + bool nextIsDoubleWidth = (x+len+1 == columnsToUpdate) ? false : (newLine[x+len+1].character == 0); + + if ( ch.foregroundColor != cf || + ch.backgroundColor != _clipboard || + ch.rendition != cr || + !dirtyMask[x+len] || + isLineChar(c) != lineDraw || + nextIsDoubleWidth != doubleWidth ) + break; + + disstrU[p++] = c; //fontMap(c); + } + + QString unistr(disstrU, p); + + bool saveFixedFont = _fixedFont; + if (lineDraw) + _fixedFont = false; + if (doubleWidth) + _fixedFont = false; + + updateLine = true; + + _fixedFont = saveFixedFont; + x += len - 1; + } + + } + + //both the top and bottom halves of double height _lines must always be redrawn + //although both top and bottom halves contain the same characters, only + //the top one is actually + //drawn. + if (_lineProperties.count() > y) + updateLine |= (_lineProperties[y] & LINE_DOUBLEHEIGHT); + + // if the characters on the line are different in the old and the new _image + // then this line must be repainted. + if (updateLine) + { + dirtyLineCount++; + + // add the area occupied by this line to the region which needs to be + // repainted + QRect dirtyRect = QRect( _leftMargin+tLx , + _topMargin+tLy+_fontHeight*y , + _fontWidth * columnsToUpdate , + _fontHeight ); + + dirtyRegion |= dirtyRect; + } + + // replace the line of characters in the old _image with the + // current line of the new _image + memcpy((void*)currentLine,(const void*)newLine,columnsToUpdate*sizeof(Character)); + } + + // if the new _image is smaller than the previous _image, then ensure that the area + // outside the new _image is cleared + if ( linesToUpdate < _usedLines ) + { + dirtyRegion |= QRect( _leftMargin+tLx , + _topMargin+tLy+_fontHeight*linesToUpdate , + _fontWidth * this->_columns , + _fontHeight * (_usedLines-linesToUpdate) ); + } + _usedLines = linesToUpdate; + + if ( columnsToUpdate < _usedColumns ) + { + dirtyRegion |= QRect( _leftMargin+tLx+columnsToUpdate*_fontWidth , + _topMargin+tLy , + _fontWidth * (_usedColumns-columnsToUpdate) , + _fontHeight * this->_lines ); + } + _usedColumns = columnsToUpdate; + + dirtyRegion |= _inputMethodData.previousPreeditRect; + + // update the parts of the display which have changed + update(dirtyRegion); + + if ( _hasBlinker && !_blinkTimer->isActive()) _blinkTimer->start( BLINK_DELAY ); + if (!_hasBlinker && _blinkTimer->isActive()) { _blinkTimer->stop(); _blinking = false; } + delete[] dirtyMask; + delete[] disstrU; + +} + +void TerminalView::showResizeNotification() +{ + if (_terminalSizeHint && isVisible()) + { + if (_terminalSizeStartup) { + _terminalSizeStartup=false; + return; + } + if (!_resizeWidget) + { + _resizeWidget = new QLabel(("Size: XXX x XXX"), this); + _resizeWidget->setMinimumWidth(_resizeWidget->fontMetrics().width(("Size: XXX x XXX"))); + _resizeWidget->setMinimumHeight(_resizeWidget->sizeHint().height()); + _resizeWidget->setAlignment(Qt::AlignCenter); + + _resizeWidget->setStyleSheet("background-color:palette(window);border-style:solid;border-width:1px;border-color:palette(dark)"); + + _resizeTimer = new QTimer(this); + _resizeTimer->setSingleShot(true); + connect(_resizeTimer, SIGNAL(timeout()), _resizeWidget, SLOT(hide())); + + } + QString sizeStr; + sizeStr.sprintf("Size: %d x %d", _columns, _lines); + _resizeWidget->setText(sizeStr); + _resizeWidget->move((width()-_resizeWidget->width())/2, + (height()-_resizeWidget->height())/2+20); + _resizeWidget->show(); + _resizeTimer->start(1000); + } +} + +void TerminalView::setBlinkingCursor(bool blink) +{ + _hasBlinkingCursor=blink; + + if (blink && !_blinkCursorTimer->isActive()) + _blinkCursorTimer->start(BLINK_DELAY); + + if (!blink && _blinkCursorTimer->isActive()) + { + _blinkCursorTimer->stop(); + if (_cursorBlinking) + blinkCursorEvent(); + else + _cursorBlinking = false; + } +} + +void TerminalView::paintEvent( QPaintEvent* pe ) +{ +//qDebug("%s %d paintEvent", __FILE__, __LINE__); + QPainter paint(this); +//qDebug("%s %d paintEvent %d %d", __FILE__, __LINE__, paint.window().top(), paint.window().right()); + + foreach (QRect rect, (pe->region() & contentsRect()).rects()) + { + drawBackground(paint,rect,palette().background().color(), true /* use opacity setting */); + drawContents(paint, rect); + } +// drawBackground(paint,contentsRect(),palette().background().color(), true /* use opacity setting */); +// drawContents(paint, contentsRect()); + drawInputMethodPreeditString(paint,preeditRect()); + paintFilters(paint); + + paint.end(); +} + +QPoint TerminalView::cursorPosition() const +{ + if (_screenWindow) + return _screenWindow->cursorPosition(); + else + return QPoint(0,0); +} + +QRect TerminalView::preeditRect() const +{ + const int preeditLength = string_width(_inputMethodData.preeditString); + + if ( preeditLength == 0 ) + return QRect(); + + return QRect(_leftMargin + _fontWidth*cursorPosition().x(), + _topMargin + _fontHeight*cursorPosition().y(), + _fontWidth*preeditLength, + _fontHeight); +} + +void TerminalView::drawInputMethodPreeditString(QPainter& painter , const QRect& rect) +{ + if ( _inputMethodData.preeditString.isEmpty() ) { + return; + } + const QPoint cursorPos = cursorPosition(); + + bool invertColors = false; + const QColor background = _colorTable[DEFAULT_BACK_COLOR].color; + const QColor foreground = _colorTable[DEFAULT_FORE_COLOR].color; + const Character* style = &_image[loc(cursorPos.x(),cursorPos.y())]; + + drawBackground(painter,rect,background,true); + drawCursor(painter,rect,foreground,background,invertColors); + drawCharacters(painter,rect,_inputMethodData.preeditString,style,invertColors); + + _inputMethodData.previousPreeditRect = rect; +} + +FilterChain* TerminalView::filterChain() const +{ + return _filterChain; +} + +void TerminalView::paintFilters(QPainter& painter) +{ +//qDebug("%s %d paintFilters", __FILE__, __LINE__); + + // get color of character under mouse and use it to draw + // lines for filters + QPoint cursorPos = mapFromGlobal(QCursor::pos()); + int cursorLine; + int cursorColumn; + getCharacterPosition( cursorPos , cursorLine , cursorColumn ); + Character cursorCharacter = _image[loc(cursorColumn,cursorLine)]; + + painter.setPen( QPen(cursorCharacter.foregroundColor.color(colorTable())) ); + + // iterate over hotspots identified by the display's currently active filters + // and draw appropriate visuals to indicate the presence of the hotspot + + QList<Filter::HotSpot*> spots = _filterChain->hotSpots(); + QListIterator<Filter::HotSpot*> iter(spots); + while (iter.hasNext()) + { + Filter::HotSpot* spot = iter.next(); + + for ( int line = spot->startLine() ; line <= spot->endLine() ; line++ ) + { + int startColumn = 0; + int endColumn = _columns-1; // TODO use number of _columns which are actually + // occupied on this line rather than the width of the + // display in _columns + + // ignore whitespace at the end of the lines + while ( QChar(_image[loc(endColumn,line)].character).isSpace() && endColumn > 0 ) + endColumn--; + + // increment here because the column which we want to set 'endColumn' to + // is the first whitespace character at the end of the line + endColumn++; + + if ( line == spot->startLine() ) + startColumn = spot->startColumn(); + if ( line == spot->endLine() ) + endColumn = spot->endColumn(); + + // subtract one pixel from + // the right and bottom so that + // we do not overdraw adjacent + // hotspots + // + // subtracting one pixel from all sides also prevents an edge case where + // moving the mouse outside a link could still leave it underlined + // because the check below for the position of the cursor + // finds it on the border of the target area + QRect r; + r.setCoords( startColumn*_fontWidth + 1, line*_fontHeight + 1, + endColumn*_fontWidth - 1, (line+1)*_fontHeight - 1 ); + + // Underline link hotspots + if ( spot->type() == Filter::HotSpot::Link ) + { + QFontMetrics metrics(font()); + + // find the baseline (which is the invisible line that the characters in the font sit on, + // with some having tails dangling below) + int baseline = r.bottom() - metrics.descent(); + // find the position of the underline below that + int underlinePos = baseline + metrics.underlinePos(); + + if ( r.contains( mapFromGlobal(QCursor::pos()) ) ) + painter.drawLine( r.left() , underlinePos , + r.right() , underlinePos ); + } + // Marker hotspots simply have a transparent rectanglular shape + // drawn on top of them + else if ( spot->type() == Filter::HotSpot::Marker ) + { + //TODO - Do not use a hardcoded colour for this + painter.fillRect(r,QBrush(QColor(255,0,0,120))); + } + } + } +} +void TerminalView::drawContents(QPainter &paint, const QRect &rect) +{ +//qDebug("%s %d drawContents and rect x=%d y=%d w=%d h=%d", __FILE__, __LINE__, rect.x(), rect.y(),rect.width(),rect.height()); + + QPoint tL = contentsRect().topLeft(); +// int tLx = tL.x(); + int tLy = tL.y(); + + int tLx = (_contentWidth - _usedColumns * _fontWidth)/2; +// int tLy = (_contentHeight - _usedLines * _fontHeight)/2; +//qDebug("%d %d %d %d", tLx, tLy, _contentWidth, _usedColumns * _fontWidth); + + int lux = qMin(_usedColumns-1, qMax(0,(rect.left() - tLx - _leftMargin ) / _fontWidth)); + int luy = qMin(_usedLines-1, qMax(0, (rect.top() - tLy - _topMargin ) / _fontHeight)); + int rlx = qMin(_usedColumns-1, qMax(0, (rect.right() - tLx - _leftMargin ) / _fontWidth)); + int rly = qMin(_usedLines-1, qMax(0, (rect.bottom() - tLy - _topMargin ) / _fontHeight)); + + const int bufferSize = _usedColumns; + QChar *disstrU = new QChar[bufferSize]; + for (int y = luy; y <= rly; y++) + { + quint16 c = _image[loc(lux,y)].character; + int x = lux; + if(!c && x) + x--; // Search for start of multi-column character + for (; x <= rlx; x++) + { + int len = 1; + int p = 0; + + // is this a single character or a sequence of characters ? + if ( _image[loc(x,y)].rendition & RE_EXTENDED_CHAR ) + { + // sequence of characters + ushort extendedCharLength = 0; + ushort* chars = ExtendedCharTable::instance + .lookupExtendedChar(_image[loc(x,y)].charSequence,extendedCharLength); + for ( int index = 0 ; index < extendedCharLength ; index++ ) + { + Q_ASSERT( p < bufferSize ); + disstrU[p++] = chars[index]; + } + } + else + { + // single character + c = _image[loc(x,y)].character; + if (c) + { + Q_ASSERT( p < bufferSize ); + disstrU[p++] = c; //fontMap(c); + } + } + + bool lineDraw = isLineChar(c); + bool doubleWidth = (_image[ qMin(loc(x,y)+1,_imageSize) ].character == 0); + CharacterColor currentForeground = _image[loc(x,y)].foregroundColor; + CharacterColor currentBackground = _image[loc(x,y)].backgroundColor; + quint8 currentRendition = _image[loc(x,y)].rendition; + + while (x+len <= rlx && + _image[loc(x+len,y)].foregroundColor == currentForeground && + _image[loc(x+len,y)].backgroundColor == currentBackground && + _image[loc(x+len,y)].rendition == currentRendition && + (_image[ qMin(loc(x+len,y)+1,_imageSize) ].character == 0) == doubleWidth && + isLineChar( c = _image[loc(x+len,y)].character) == lineDraw) // Assignment! + { + if (c) + disstrU[p++] = c; //fontMap(c); + if (doubleWidth) // assert((_image[loc(x+len,y)+1].character == 0)), see above if condition + len++; // Skip trailing part of multi-column character + len++; + } + if ((x+len < _usedColumns) && (!_image[loc(x+len,y)].character)) + len++; // Adjust for trailing part of multi-column character + + bool save__fixedFont = _fixedFont; + if (lineDraw) + _fixedFont = false; + if (doubleWidth) + _fixedFont = false; + QString unistr(disstrU,p); + + if (y < _lineProperties.size()) + { + if (_lineProperties[y] & LINE_DOUBLEWIDTH) { + paint.scale(2,1); + } + + if (_lineProperties[y] & LINE_DOUBLEHEIGHT) { + paint.scale(1,2); + } + } + + //calculate the area in which the text will be drawn + QRect textArea = QRect( _leftMargin+tLx+_fontWidth*x , + _topMargin+tLy+_fontHeight*y , + _fontWidth*len, + _fontHeight); + + //move the calculated area to take account of scaling applied to the painter. + //the position of the area from the origin (0,0) is scaled + //by the opposite of whatever + //transformation has been applied to the painter. this ensures that + //painting does actually start from textArea.topLeft() + //(instead of textArea.topLeft() * painter-scale) + QMatrix inverted = paint.matrix().inverted(); +// textArea.moveTopLeft( inverted.map(textArea.topLeft()) ); + textArea.moveCenter( inverted.map(textArea.center()) ); + + + //paint text fragment + drawTextFragment( paint, + textArea, + unistr, + &_image[loc(x,y)] ); //, + //0, + //!_isPrinting ); + + _fixedFont = save__fixedFont; + + //reset back to single-width, single-height _lines + paint.resetMatrix(); + + if (y < _lineProperties.size()-1) + { + //double-height _lines are represented by two adjacent _lines + //containing the same characters + //both _lines will have the LINE_DOUBLEHEIGHT attribute. + //If the current line has the LINE_DOUBLEHEIGHT attribute, + //we can therefore skip the next line + if (_lineProperties[y] & LINE_DOUBLEHEIGHT) + y++; + } + + x += len - 1; + } + } + delete [] disstrU; +} + +void TerminalView::blinkEvent() +{ + _blinking = !_blinking; + + //TODO: Optimise to only repaint the areas of the widget + // where there is blinking text + // rather than repainting the whole widget. + update(); +} + +QRect TerminalView::imageToWidget(const QRect& imageArea) const +{ +//qDebug("%s %d imageToWidget", __FILE__, __LINE__); + QRect result; + result.setLeft( _leftMargin + _fontWidth * imageArea.left() ); + result.setTop( _topMargin + _fontHeight * imageArea.top() ); + result.setWidth( _fontWidth * imageArea.width() ); + result.setHeight( _fontHeight * imageArea.height() ); + + return result; +} + +void TerminalView::blinkCursorEvent() +{ + _cursorBlinking = !_cursorBlinking; + + QRect cursorRect = imageToWidget( QRect(cursorPosition(),QSize(1,1)) ); + + update(cursorRect); +} + +/* ------------------------------------------------------------------------- */ +/* */ +/* Resizing */ +/* */ +/* ------------------------------------------------------------------------- */ + +void TerminalView::resizeEvent(QResizeEvent*) +{ + updateImageSize(); +} + +void TerminalView::propagateSize() +{ + if (_isFixedSize) + { + setSize(_columns, _lines); + QWidget::setFixedSize(sizeHint()); + parentWidget()->adjustSize(); + parentWidget()->setFixedSize(parentWidget()->sizeHint()); + return; + } + if (_image) + updateImageSize(); +} + +void TerminalView::updateImageSize() +{ +//qDebug("%s %d updateImageSize", __FILE__, __LINE__); + Character* oldimg = _image; + int oldlin = _lines; + int oldcol = _columns; + + makeImage(); + + + // copy the old image to reduce flicker + int lines = qMin(oldlin,_lines); + int columns = qMin(oldcol,_columns); + +//qDebug("%s %d updateImageSize", __FILE__, __LINE__); + if (oldimg) + { + for (int line = 0; line < lines; line++) + { + memcpy((void*)&_image[_columns*line], + (void*)&oldimg[oldcol*line],columns*sizeof(Character)); + } + delete[] oldimg; + } + +//qDebug("%s %d updateImageSize", __FILE__, __LINE__); + if (_screenWindow) + _screenWindow->setWindowLines(_lines); + + _resizing = (oldlin!=_lines) || (oldcol!=_columns); + + if ( _resizing ) + { +//qDebug("%s %d updateImageSize", __FILE__, __LINE__); + showResizeNotification(); + emit changedContentSizeSignal(_contentHeight, _contentWidth); // expose resizeEvent + } +//qDebug("%s %d updateImageSize", __FILE__, __LINE__); + + _resizing = false; +} + +//showEvent and hideEvent are reimplemented here so that it appears to other classes that the +//display has been resized when the display is hidden or shown. +// +//this allows +//TODO: Perhaps it would be better to have separate signals for show and hide instead of using +//the same signal as the one for a content size change +void TerminalView::showEvent(QShowEvent*) +{ + emit changedContentSizeSignal(_contentHeight,_contentWidth); +} +void TerminalView::hideEvent(QHideEvent*) +{ + emit changedContentSizeSignal(_contentHeight,_contentWidth); +} + +/* ------------------------------------------------------------------------- */ +/* */ +/* Scrollbar */ +/* */ +/* ------------------------------------------------------------------------- */ + +void TerminalView::scrollBarPositionChanged(int) +{ + if ( !_screenWindow ) + return; + + _screenWindow->scrollTo( _scrollBar->value() ); + + // if the thumb has been moved to the bottom of the _scrollBar then set + // the display to automatically track new output, + // that is, scroll down automatically + // to how new _lines as they are added + const bool atEndOfOutput = (_scrollBar->value() == _scrollBar->maximum()); + _screenWindow->setTrackOutput( atEndOfOutput ); + + updateImage(); +} + +void TerminalView::setScroll(int cursor, int slines) +{ +//qDebug("%s %d setScroll", __FILE__, __LINE__); + // update _scrollBar if the range or value has changed, + // otherwise return + // + // setting the range or value of a _scrollBar will always trigger + // a repaint, so it should be avoided if it is not necessary + if ( _scrollBar->minimum() == 0 && + _scrollBar->maximum() == (slines - _lines) && + _scrollBar->value() == cursor ) + { + return; + } + + disconnect(_scrollBar, SIGNAL(valueChanged(int)), this, SLOT(scrollBarPositionChanged(int))); + _scrollBar->setRange(0,slines - _lines); + _scrollBar->setSingleStep(1); + _scrollBar->setPageStep(_lines); + _scrollBar->setValue(cursor); + connect(_scrollBar, SIGNAL(valueChanged(int)), this, SLOT(scrollBarPositionChanged(int))); +} + +void TerminalView::setScrollBarPosition(ScrollBarPosition position) +{ + if (_scrollbarLocation == position) { +// return; + } + + if ( position == NoScrollBar ) + _scrollBar->hide(); + else + _scrollBar->show(); + + _topMargin = _leftMargin = 1; + _scrollbarLocation = position; + + propagateSize(); + update(); +} + +void TerminalView::mousePressEvent(QMouseEvent* ev) +{ + if ( _possibleTripleClick && (ev->button()==Qt::LeftButton) ) { + mouseTripleClickEvent(ev); + return; + } + + if ( !contentsRect().contains(ev->pos()) ) return; + + if ( !_screenWindow ) return; + + int charLine; + int charColumn; + getCharacterPosition(ev->pos(),charLine,charColumn); + QPoint pos = QPoint(charColumn,charLine); + + if ( ev->button() == Qt::LeftButton) + { + _lineSelectionMode = false; + _wordSelectionMode = false; + + emit isBusySelecting(true); // Keep it steady... + // Drag only when the Control key is hold + bool selected = false; + + // The receiver of the testIsSelected() signal will adjust + // 'selected' accordingly. + //emit testIsSelected(pos.x(), pos.y(), selected); + + selected = _screenWindow->isSelected(pos.x(),pos.y()); + + if ((!_ctrlDrag || ev->modifiers() & Qt::ControlModifier) && selected ) { + // The user clicked inside selected text + dragInfo.state = diPending; + dragInfo.start = ev->pos(); + } + else { + // No reason to ever start a drag event + dragInfo.state = diNone; + + _preserveLineBreaks = !( ( ev->modifiers() & Qt::ControlModifier ) && !(ev->modifiers() & Qt::AltModifier) ); + _columnSelectionMode = (ev->modifiers() & Qt::AltModifier) && (ev->modifiers() & Qt::ControlModifier); + + if (_mouseMarks || (ev->modifiers() & Qt::ShiftModifier)) + { + _screenWindow->clearSelection(); + + //emit clearSelectionSignal(); + pos.ry() += _scrollBar->value(); + _iPntSel = _pntSel = pos; + _actSel = 1; // left mouse button pressed but nothing selected yet. + + } + else + { + emit mouseSignal( 0, charColumn + 1, charLine + 1 +_scrollBar->value() -_scrollBar->maximum() , 0); + } + } + } + else if ( ev->button() == Qt::MidButton ) + { + if ( _mouseMarks || (!_mouseMarks && (ev->modifiers() & Qt::ShiftModifier)) ) + emitSelection(true,ev->modifiers() & Qt::ControlModifier); + else + emit mouseSignal( 1, charColumn +1, charLine +1 +_scrollBar->value() -_scrollBar->maximum() , 0); + } + else if ( ev->button() == Qt::RightButton ) + { + if (_mouseMarks || (ev->modifiers() & Qt::ShiftModifier)) + { + emit configureRequest( this, + ev->modifiers() & (Qt::ShiftModifier|Qt::ControlModifier), + ev->pos() + ); + } + else + emit mouseSignal( 2, charColumn +1, charLine +1 +_scrollBar->value() -_scrollBar->maximum() , 0); + } +} + +QList<QAction*> TerminalView::filterActions(const QPoint& position) +{ + int charLine, charColumn; + getCharacterPosition(position,charLine,charColumn); + + Filter::HotSpot* spot = _filterChain->hotSpotAt(charLine,charColumn); + + return spot ? spot->actions() : QList<QAction*>(); +} + +void TerminalView::mouseMoveEvent(QMouseEvent* ev) +{ + int charLine = 0; + int charColumn = 0; + + getCharacterPosition(ev->pos(),charLine,charColumn); + + // handle filters + // change link hot-spot appearance on mouse-over + Filter::HotSpot* spot = _filterChain->hotSpotAt(charLine,charColumn); + if ( spot && spot->type() == Filter::HotSpot::Link) + { + QRect previousHotspotArea = _mouseOverHotspotArea; + _mouseOverHotspotArea.setCoords( qMin(spot->startColumn() , spot->endColumn()) * _fontWidth, + spot->startLine() * _fontHeight, + qMax(spot->startColumn() , spot->endColumn()) * _fontHeight, + (spot->endLine()+1) * _fontHeight ); + + // display tooltips when mousing over links + // TODO: Extend this to work with filter types other than links + const QString& tooltip = spot->tooltip(); + if ( !tooltip.isEmpty() ) + { + QToolTip::showText( mapToGlobal(ev->pos()) , tooltip , this , _mouseOverHotspotArea ); + } + + update( _mouseOverHotspotArea | previousHotspotArea ); + } + else if ( _mouseOverHotspotArea.isValid() ) + { + update( _mouseOverHotspotArea ); + // set hotspot area to an invalid rectangle + _mouseOverHotspotArea = QRect(); + } + + // for auto-hiding the cursor, we need mouseTracking + if (ev->buttons() == Qt::NoButton ) return; + + // if the terminal is interested in mouse movements + // then emit a mouse movement signal, unless the shift + // key is being held down, which overrides this. + if (!_mouseMarks && !(ev->modifiers() & Qt::ShiftModifier)) + { + int button = 3; + if (ev->buttons() & Qt::LeftButton) + button = 0; + if (ev->buttons() & Qt::MidButton) + button = 1; + if (ev->buttons() & Qt::RightButton) + button = 2; + + + emit mouseSignal( button, + charColumn + 1, + charLine + 1 +_scrollBar->value() -_scrollBar->maximum(), + 1 ); + + return; + } + + if (dragInfo.state == diPending) + { + // we had a mouse down, but haven't confirmed a drag yet + // if the mouse has moved sufficiently, we will confirm + + int distance = 10; //KGlobalSettings::dndEventDelay(); + if ( ev->x() > dragInfo.start.x() + distance || ev->x() < dragInfo.start.x() - distance || + ev->y() > dragInfo.start.y() + distance || ev->y() < dragInfo.start.y() - distance) + { + // we've left the drag square, we can start a real drag operation now + emit isBusySelecting(false); // Ok.. we can breath again. + + _screenWindow->clearSelection(); + doDrag(); + } + return; + } + else if (dragInfo.state == diDragging) + { + // this isn't technically needed because mouseMoveEvent is suppressed during + // Qt drag operations, replaced by dragMoveEvent + return; + } + + if (_actSel == 0) return; + + // don't extend selection while pasting + if (ev->buttons() & Qt::MidButton) return; + + extendSelection( ev->pos() ); +} + +#if 0 +void TerminalDisplay::setSelectionEnd() +{ + extendSelection( _configureRequestPoint ); +} +#endif + +void TerminalView::extendSelection(const QPoint& position) { + QPoint pos = position; + + if (!_screenWindow) { + return; + } + + QPoint tL = contentsRect().topLeft(); + int tLx = tL.x(); + int tLy = tL.y(); + int scroll = _scrollBar->value(); + + // we're in the process of moving the mouse with the left button pressed + // the mouse cursor will kept caught within the bounds of the text in + // this widget. + + // Adjust position within text area bounds. See FIXME above. + if (pos.x() < tLx + _leftMargin) { + pos.setX(tLx + _leftMargin); + } + if (pos.x() > tLx + _leftMargin + _usedColumns * _fontWidth - 1) { + pos.setX(tLx + _leftMargin + _usedColumns * _fontWidth); + } + if (pos.y() < tLy + _topMargin) { + pos.setY(tLy + _topMargin); + } + if (pos.y() > tLy + _topMargin + _usedLines * _fontHeight - 1) { + pos.setY(tLy + _topMargin + _usedLines * _fontHeight - 1); + } + + if (pos.y() == tLy + _topMargin + _usedLines * _fontHeight - 1) { + _scrollBar->setValue(_scrollBar->value() + yMouseScroll); // scrollforward + } + if (pos.y() == tLy + _topMargin) { + _scrollBar->setValue(_scrollBar->value() - yMouseScroll); // scrollback + } + + int charColumn = 0; + int charLine = 0; + getCharacterPosition(pos, charLine, charColumn); + + QPoint here = QPoint(charColumn, charLine); + QPoint ohere(here); + QPoint _iPntSelCorr = _iPntSel; + _iPntSelCorr.ry() -= _scrollBar->value(); + QPoint _pntSelCorr = _pntSel; + _pntSelCorr.ry() -= _scrollBar->value(); + bool swapping = false; + + if (_wordSelectionMode) { + // Extend to word boundaries + int i = 0; + int selClass = 0; + + bool left_not_right = (here.y() < _iPntSelCorr.y() || + (here.y() == _iPntSelCorr.y() && here.x() < _iPntSelCorr.x())); + bool old_left_not_right = (_pntSelCorr.y() < _iPntSelCorr.y() || + (_pntSelCorr.y() == _iPntSelCorr.y() && _pntSelCorr.x() < _iPntSelCorr.x())); + swapping = left_not_right != old_left_not_right; + + // Find left (left_not_right ? from here : from start) + QPoint left = left_not_right ? here : _iPntSelCorr; + i = loc(left.x(), left.y()); + if (i >= 0 && i <= _imageSize) { + selClass = charClass(_image[i].character); + while (((left.x() > 0) || (left.y() > 0 && (_lineProperties[left.y() - 1] & LINE_WRAPPED))) + && charClass(_image[i - 1].character) == selClass) { + i--; + if (left.x() > 0) { + left.rx()--; + } else { + left.rx() = _usedColumns - 1; + left.ry()--; + } + } + } + + // Find left (left_not_right ? from start : from here) + QPoint right = left_not_right ? _iPntSelCorr : here; + i = loc(right.x(), right.y()); + if (i >= 0 && i <= _imageSize) { + selClass = charClass(_image[i].character); + while (((right.x() < _usedColumns - 1) || (right.y() < _usedLines - 1 && (_lineProperties[right.y()] & LINE_WRAPPED))) + && charClass(_image[i + 1].character) == selClass) { + i++; + if (right.x() < _usedColumns - 1) { + right.rx()++; + } else { + right.rx() = 0; + right.ry()++; + } + } + } + + // Pick which is start (ohere) and which is extension (here) + if (left_not_right) { + here = left; + ohere = right; + } else { + here = right; + ohere = left; + } + ohere.rx()++; + } + + if (_lineSelectionMode) { + // Extend to complete line + bool above_not_below = (here.y() < _iPntSelCorr.y()); + + QPoint above = above_not_below ? here : _iPntSelCorr; + QPoint below = above_not_below ? _iPntSelCorr : here; + + while (above.y() > 0 && (_lineProperties[above.y() - 1] & LINE_WRAPPED)) { + above.ry()--; + } + while (below.y() < _usedLines - 1 && (_lineProperties[below.y()] & LINE_WRAPPED)) { + below.ry()++; + } + + above.setX(0); + below.setX(_usedColumns - 1); + + // Pick which is start (ohere) and which is extension (here) + if (above_not_below) { + here = above; + ohere = below; + } else { + here = below; + ohere = above; + } + + QPoint newSelBegin = QPoint(ohere.x(), ohere.y()); + swapping = !(_tripleSelBegin == newSelBegin); + _tripleSelBegin = newSelBegin; + + ohere.rx()++; + } + + int offset = 0; + if (!_wordSelectionMode && !_lineSelectionMode) { + int i = 0; + int selClass = 0; + + bool left_not_right = (here.y() < _iPntSelCorr.y() || + (here.y() == _iPntSelCorr.y() && here.x() < _iPntSelCorr.x())); + bool old_left_not_right = (_pntSelCorr.y() < _iPntSelCorr.y() || + (_pntSelCorr.y() == _iPntSelCorr.y() && _pntSelCorr.x() < _iPntSelCorr.x())); + swapping = left_not_right != old_left_not_right; + + // Find left (left_not_right ? from here : from start) + QPoint left = left_not_right ? here : _iPntSelCorr; + + // Find left (left_not_right ? from start : from here) + QPoint right = left_not_right ? _iPntSelCorr : here; + if (right.x() > 0 && !_columnSelectionMode) { + i = loc(right.x(), right.y()); + if (i >= 0 && i <= _imageSize) { + selClass = charClass(_image[i - 1].character); + if (selClass == ' ') { + while (right.x() < _usedColumns - 1 && charClass(_image[i + 1].character) == selClass && (right.y() < _usedLines - 1) && + !(_lineProperties[right.y()] & LINE_WRAPPED)) { + i++; + right.rx()++; + } + if (right.x() < _usedColumns - 1) { + right = left_not_right ? _iPntSelCorr : here; + } else { + right.rx()++; // will be balanced later because of offset=-1; + } + } + } + } + + // Pick which is start (ohere) and which is extension (here) + if (left_not_right) { + here = left; + ohere = right; + offset = 0; + } else { + here = right; + ohere = left; + offset = -1; + } + } + + if ((here == _pntSelCorr) && (scroll == _scrollBar->value())) { + return; // not moved + } + + if (here == ohere) { + return; // It's not left, it's not right. + } + + if (_actSel < 2 || swapping) { + if (_columnSelectionMode && !_lineSelectionMode && !_wordSelectionMode) { + _screenWindow->setSelectionStart(ohere.x(), ohere.y(), true); + } else { + _screenWindow->setSelectionStart(ohere.x() - 1 - offset , ohere.y(), false); + } + + } + + _actSel = 2; // within selection + _pntSel = here; + _pntSel.ry() += _scrollBar->value(); + + if (_columnSelectionMode && !_lineSelectionMode && !_wordSelectionMode) { + _screenWindow->setSelectionEnd(here.x(), here.y()); + } else { + _screenWindow->setSelectionEnd(here.x() + offset, here.y()); + } +} + +void TerminalView::mouseReleaseEvent(QMouseEvent* ev) +{ + if ( !_screenWindow ) + return; + + int charLine; + int charColumn; + getCharacterPosition(ev->pos(),charLine,charColumn); + + if ( ev->button() == Qt::LeftButton) + { + emit isBusySelecting(false); + if(dragInfo.state == diPending) + { + // We had a drag event pending but never confirmed. Kill selection + _screenWindow->clearSelection(); + //emit clearSelectionSignal(); + } + else + { + if ( _actSel > 1 ) + { + setSelection( _screenWindow->selectedText(_preserveLineBreaks) ); + } + + _actSel = 0; + + //FIXME: emits a release event even if the mouse is + // outside the range. The procedure used in `mouseMoveEvent' + // applies here, too. + + if (!_mouseMarks && !(ev->modifiers() & Qt::ShiftModifier)) + emit mouseSignal( 3, // release + charColumn + 1, + charLine + 1 +_scrollBar->value() -_scrollBar->maximum() , 0); + } + dragInfo.state = diNone; + } + + + if ( !_mouseMarks && + ((ev->button() == Qt::RightButton && !(ev->modifiers() & Qt::ShiftModifier)) + || ev->button() == Qt::MidButton) ) + { + emit mouseSignal( 3, + charColumn + 1, + charLine + 1 +_scrollBar->value() -_scrollBar->maximum() , + 0); + } +} + +void TerminalView::getCharacterPosition(const QPoint& widgetPoint,int& line,int& column) const +{ + + column = (widgetPoint.x() + _fontWidth/2 -contentsRect().left()-_leftMargin) / _fontWidth; + line = (widgetPoint.y()-contentsRect().top()-_topMargin) / _fontHeight; + + if ( line < 0 ) + line = 0; + if ( column < 0 ) + column = 0; + + if ( line >= _usedLines ) + line = _usedLines-1; + + // the column value returned can be equal to _usedColumns, which + // is the position just after the last character displayed in a line. + // + // this is required so that the user can select characters in the right-most + // column (or left-most for right-to-left input) + if ( column > _usedColumns ) + column = _usedColumns; +} + +void TerminalView::updateLineProperties() +{ + if ( !_screenWindow ) + return; + + _lineProperties = _screenWindow->getLineProperties(); +} + +void TerminalView::mouseDoubleClickEvent(QMouseEvent* ev) +{ + if ( ev->button() != Qt::LeftButton) return; + if ( !_screenWindow ) return; + + int charLine = 0; + int charColumn = 0; + + getCharacterPosition(ev->pos(),charLine,charColumn); + + QPoint pos(charColumn,charLine); + + // pass on double click as two clicks. + if (!_mouseMarks && !(ev->modifiers() & Qt::ShiftModifier)) + { + // Send just _ONE_ click event, since the first click of the double click + // was already sent by the click handler + emit mouseSignal( 0, + pos.x()+1, + pos.y()+1 +_scrollBar->value() -_scrollBar->maximum(), + 0 ); // left button + return; + } + + _screenWindow->clearSelection(); + QPoint bgnSel = pos; + QPoint endSel = pos; + int i = loc(bgnSel.x(),bgnSel.y()); + _iPntSel = bgnSel; + _iPntSel.ry() += _scrollBar->value(); + + _wordSelectionMode = true; + + // find word boundaries... + int selClass = charClass(_image[i].character); + { + // find the start of the word + int x = bgnSel.x(); + while ( ((x>0) || (bgnSel.y()>0 && (_lineProperties[bgnSel.y()-1] & LINE_WRAPPED) )) + && charClass(_image[i-1].character) == selClass ) + { + i--; + if (x>0) + x--; + else + { + x=_usedColumns-1; + bgnSel.ry()--; + } + } + + bgnSel.setX(x); + _screenWindow->setSelectionStart( bgnSel.x() , bgnSel.y() , false ); + + // find the end of the word + i = loc( endSel.x(), endSel.y() ); + x = endSel.x(); + while( ((x<_usedColumns-1) || (endSel.y()<_usedLines-1 && (_lineProperties[endSel.y()] & LINE_WRAPPED) )) + && charClass(_image[i+1].character) == selClass ) + { + i++; + if (x<_usedColumns-1) + x++; + else + { + x=0; + endSel.ry()++; + } + } + + endSel.setX(x); + + // In word selection mode don't select @ (64) if at end of word. + if ( ( QChar( _image[i].character ) == '@' ) && ( ( endSel.x() - bgnSel.x() ) > 0 ) ) + endSel.setX( x - 1 ); + + + _actSel = 2; // within selection + + _screenWindow->setSelectionEnd( endSel.x() , endSel.y() ); + + setSelection( _screenWindow->selectedText(_preserveLineBreaks) ); + } + + _possibleTripleClick=true; + + QTimer::singleShot(QApplication::doubleClickInterval(),this, + SLOT(tripleClickTimeout())); +} + +void TerminalView::wheelEvent( QWheelEvent* ev ) +{ + if (ev->orientation() != Qt::Vertical) + return; + + if ( _mouseMarks ) + _scrollBar->event(ev); + else + { + int charLine; + int charColumn; + getCharacterPosition( ev->pos() , charLine , charColumn ); + + emit mouseSignal( ev->delta() > 0 ? 4 : 5, + charColumn + 1, + charLine + 1 +_scrollBar->value() -_scrollBar->maximum() , + 0); + } +} + +void TerminalView::tripleClickTimeout() +{ + _possibleTripleClick=false; +} + +void TerminalView::mouseTripleClickEvent(QMouseEvent* ev) +{ + if ( !_screenWindow ) return; + + int charLine; + int charColumn; + getCharacterPosition(ev->pos(),charLine,charColumn); + _iPntSel = QPoint(charColumn,charLine); + + _screenWindow->clearSelection(); + + _lineSelectionMode = true; + _wordSelectionMode = false; + + _actSel = 2; // within selection + emit isBusySelecting(true); // Keep it steady... + + while (_iPntSel.y()>0 && (_lineProperties[_iPntSel.y()-1] & LINE_WRAPPED) ) + _iPntSel.ry()--; + + if (_tripleClickMode == SelectForwardsFromCursor) { + // find word boundary start + int i = loc(_iPntSel.x(),_iPntSel.y()); + int selClass = charClass(_image[i].character); + int x = _iPntSel.x(); + + while ( ((x>0) || + (_iPntSel.y()>0 && (_lineProperties[_iPntSel.y()-1] & LINE_WRAPPED) ) + ) + && charClass(_image[i-1].character) == selClass ) + { + i--; + if (x>0) + x--; + else + { + x=_columns-1; + _iPntSel.ry()--; + } + } + + _screenWindow->setSelectionStart( x , _iPntSel.y() , false ); + _tripleSelBegin = QPoint( x, _iPntSel.y() ); + } + else if (_tripleClickMode == SelectWholeLine) { + _screenWindow->setSelectionStart( 0 , _iPntSel.y() , false ); + _tripleSelBegin = QPoint( 0, _iPntSel.y() ); + } + + while (_iPntSel.y()<_lines-1 && (_lineProperties[_iPntSel.y()] & LINE_WRAPPED) ) + _iPntSel.ry()++; + + _screenWindow->setSelectionEnd( _columns - 1 , _iPntSel.y() ); + + setSelection(_screenWindow->selectedText(_preserveLineBreaks)); + + _iPntSel.ry() += _scrollBar->value(); + + emit tripleClicked( _screenWindow->selectedText( _preserveLineBreaks ) ); +} + + +bool TerminalView::focusNextPrevChild( bool next ) +{ + if (next) + return false; // This disables changing the active part in konqueror + // when pressing Tab + return QWidget::focusNextPrevChild( next ); +} + + +int TerminalView::charClass(quint16 ch) const +{ + QChar qch=QChar(ch); + if ( qch.isSpace() ) return ' '; + + if ( qch.isLetterOrNumber() || _wordCharacters.contains(qch, Qt::CaseInsensitive ) ) + return 'a'; + + // Everything else is weird + return 1; +} + +void TerminalView::setWordCharacters(const QString& wc) +{ + _wordCharacters = wc; +} + +void TerminalView::setUsesMouse(bool on) +{ + _mouseMarks = on; + setCursor( _mouseMarks ? Qt::IBeamCursor : Qt::ArrowCursor ); +} +bool TerminalView::usesMouse() const +{ + return _mouseMarks; +} + +/* ------------------------------------------------------------------------- */ +/* */ +/* Clipboard */ +/* */ +/* ------------------------------------------------------------------------- */ + +#undef KeyPress + +void TerminalView::emitSelection(bool useXselection,bool appendReturn) +{ + if ( !_screenWindow ) + return; + + // Paste Clipboard by simulating keypress events + QString text = QApplication::clipboard()->text(useXselection ? QClipboard::Selection : + QClipboard::Clipboard); + if(appendReturn) + text.append("\r"); + if ( ! text.isEmpty() ) + { + text.replace("\n", "\r"); + QKeyEvent e(QEvent::KeyPress, 0, Qt::NoModifier, text); + emit keyPressedSignal(&e); // expose as a big fat keypress event + + _screenWindow->clearSelection(); + } +} + +void TerminalView::setSelection(const QString& t) +{ + QApplication::clipboard()->setText(t, QClipboard::Selection); +} + +void TerminalView::copyClipboard() +{ + if ( !_screenWindow ) + return; + + QString text = _screenWindow->selectedText(_preserveLineBreaks); + QApplication::clipboard()->setText(text); +} + +void TerminalView::pasteClipboard() +{ + emitSelection(false,false); +} + +void TerminalView::pasteSelection() +{ + emitSelection(true,false); +} + +/* ------------------------------------------------------------------------- */ +/* */ +/* Keyboard */ +/* */ +/* ------------------------------------------------------------------------- */ + +void TerminalView::keyPressEvent( QKeyEvent* event ) +{ +//qDebug("%s %d keyPressEvent and key is %d", __FILE__, __LINE__, event->key()); + + bool emitKeyPressSignal = true; + + // Keyboard-based navigation + if ( event->modifiers() == Qt::ShiftModifier ) + { + bool update = true; + + if ( event->key() == Qt::Key_PageUp ) + { + //qDebug("%s %d pageup", __FILE__, __LINE__); + _screenWindow->scrollBy( ScreenWindow::ScrollPages , -1 ); + } + else if ( event->key() == Qt::Key_PageDown ) + { + //qDebug("%s %d pagedown", __FILE__, __LINE__); + _screenWindow->scrollBy( ScreenWindow::ScrollPages , 1 ); + } + else if ( event->key() == Qt::Key_Up ) + { + //qDebug("%s %d keyup", __FILE__, __LINE__); + _screenWindow->scrollBy( ScreenWindow::ScrollLines , -1 ); + } + else if ( event->key() == Qt::Key_Down ) + { + //qDebug("%s %d keydown", __FILE__, __LINE__); + _screenWindow->scrollBy( ScreenWindow::ScrollLines , 1 ); + } + else { + update = false; + } + + if ( update ) + { + //qDebug("%s %d updating", __FILE__, __LINE__); + _screenWindow->setTrackOutput( _screenWindow->atEndOfOutput() ); + + updateLineProperties(); + updateImage(); + + // do not send key press to terminal + emitKeyPressSignal = false; + } + } + + _screenWindow->setTrackOutput( true ); + + _actSel=0; // Key stroke implies a screen update, so TerminalDisplay won't + // know where the current selection is. + + if (_hasBlinkingCursor) + { + _blinkCursorTimer->start(BLINK_DELAY); + if (_cursorBlinking) + blinkCursorEvent(); + else + _cursorBlinking = false; + } + + if ( emitKeyPressSignal && !_readonly ) + emit keyPressedSignal(event); + + if (_readonly) { + event->ignore(); + } + else { + event->accept(); + } +} + +void TerminalView::inputMethodEvent( QInputMethodEvent* event ) +{ + QKeyEvent keyEvent(QEvent::KeyPress,0,Qt::NoModifier,event->commitString()); + emit keyPressedSignal(&keyEvent); + + _inputMethodData.preeditString = event->preeditString(); + update(preeditRect() | _inputMethodData.previousPreeditRect); + + event->accept(); +} +QVariant TerminalView::inputMethodQuery( Qt::InputMethodQuery query ) const +{ + const QPoint cursorPos = _screenWindow ? _screenWindow->cursorPosition() : QPoint(0,0); + switch ( query ) + { + case Qt::ImMicroFocus: + return imageToWidget(QRect(cursorPos.x(),cursorPos.y(),1,1)); + break; + case Qt::ImFont: + return font(); + break; + case Qt::ImCursorPosition: + // return the cursor position within the current line + return cursorPos.x(); + break; + case Qt::ImSurroundingText: + { + // return the text from the current line + QString lineText; + QTextStream stream(&lineText); + PlainTextDecoder decoder; + decoder.begin(&stream); + decoder.decodeLine(&_image[loc(0,cursorPos.y())],_usedColumns,_lineProperties[cursorPos.y()]); + decoder.end(); + return lineText; + } + break; + case Qt::ImCurrentSelection: + return QString(); + break; + default: + break; + } + + return QVariant(); +} + +bool TerminalView::event( QEvent *e ) +{ + if ( e->type() == QEvent::ShortcutOverride ) + { + QKeyEvent* keyEvent = static_cast<QKeyEvent *>( e ); + + // a check to see if keyEvent->text() is empty is used + // to avoid intercepting the press of the modifier key on its own. + // + // this is important as it allows a press and release of the Alt key + // on its own to focus the menu bar, making it possible to + // work with the menu without using the mouse + if ( (keyEvent->modifiers() == Qt::AltModifier) && + !keyEvent->text().isEmpty() ) + { + keyEvent->accept(); + return true; + } + + // Override any of the following shortcuts because + // they are needed by the terminal + int keyCode = keyEvent->key() | keyEvent->modifiers(); + switch ( keyCode ) + { + // list is taken from the QLineEdit::event() code + case Qt::Key_Tab: + case Qt::Key_Delete: + case Qt::Key_Home: + case Qt::Key_End: + case Qt::Key_Backspace: + case Qt::Key_Left: + case Qt::Key_Right: + keyEvent->accept(); + return true; + } + } + return QWidget::event( e ); +} + +void TerminalView::setBellMode(int mode) +{ + _bellMode=mode; +} + +void TerminalView::enableBell() +{ + _allowBell = true; +} + +void TerminalView::bell(const QString&) +{ + if (_bellMode==NoBell) return; + + //limit the rate at which bells can occur + //...mainly for sound effects where rapid bells in sequence + //produce a horrible noise + if ( _allowBell ) + { + _allowBell = false; + QTimer::singleShot(500,this,SLOT(enableBell())); + + if (_bellMode==SystemBeepBell) + { +// KNotification::beep(); + } + else if (_bellMode==NotifyBell) + { +// KNotification::event("BellVisible", message,QPixmap(),this); + } + else if (_bellMode==VisualBell) + { + swapColorTable(); + QTimer::singleShot(200,this,SLOT(swapColorTable())); + } + } +} + +void TerminalView::swapColorTable() +{ + ColorEntry color = _colorTable[1]; + _colorTable[1]=_colorTable[0]; + _colorTable[0]= color; + _colorsInverted = !_colorsInverted; + update(); +} + +void TerminalView::clearImage() +{ + // We initialize _image[_imageSize] too. See makeImage() + for (int i = 0; i <= _imageSize; i++) + { + _image[i].character = ' '; + _image[i].foregroundColor = CharacterColor(COLOR_SPACE_DEFAULT, + DEFAULT_FORE_COLOR); + _image[i].backgroundColor = CharacterColor(COLOR_SPACE_DEFAULT, + DEFAULT_BACK_COLOR); + _image[i].rendition = DEFAULT_RENDITION; + } +} + +void TerminalView::calcGeometry() +{ + _scrollBar->resize(QApplication::style()->pixelMetric(QStyle::PM_ScrollBarExtent), + contentsRect().height()); + switch(_scrollbarLocation) + { + case NoScrollBar : + _leftMargin = DEFAULT_LEFT_MARGIN; + _contentWidth = contentsRect().width() - 2 * DEFAULT_LEFT_MARGIN; + break; + case ScrollBarLeft : + _leftMargin = DEFAULT_LEFT_MARGIN + _scrollBar->width(); + _contentWidth = contentsRect().width() - 2 * DEFAULT_LEFT_MARGIN - _scrollBar->width(); + _scrollBar->move(contentsRect().topLeft()); + break; + case ScrollBarRight: + _leftMargin = DEFAULT_LEFT_MARGIN; + _contentWidth = contentsRect().width() - 2 * DEFAULT_LEFT_MARGIN - _scrollBar->width(); + _scrollBar->move(contentsRect().topRight() - QPoint(_scrollBar->width()-1,0)); + break; + } + + _topMargin = DEFAULT_TOP_MARGIN; + _contentHeight = contentsRect().height() - 2 * DEFAULT_TOP_MARGIN + /* mysterious */ 1; + + if (!_isFixedSize) + { + // ensure that display is always at least one column wide + _columns = qMax(1,_contentWidth / _fontWidth); + _usedColumns = qMin(_usedColumns,_columns); + + // ensure that display is always at least one line high + _lines = qMax(1,_contentHeight / _fontHeight); + _usedLines = qMin(_usedLines,_lines); + } +} + +void TerminalView::makeImage() +{ +//qDebug("%s %d makeImage", __FILE__, __LINE__); + calcGeometry(); + + // confirm that array will be of non-zero size, since the painting code + // assumes a non-zero array length + Q_ASSERT( _lines > 0 && _columns > 0 ); + Q_ASSERT( _usedLines <= _lines && _usedColumns <= _columns ); + + _imageSize=_lines*_columns; + + // We over-commit one character so that we can be more relaxed in dealing with + // certain boundary conditions: _image[_imageSize] is a valid but unused position + _image = new Character[_imageSize+1]; + + clearImage(); +} + +// calculate the needed size +void TerminalView::setSize(int columns, int lines) +{ + //FIXME - Not quite correct, a small amount of additional space + // will be used for margins, the scrollbar etc. + // we need to allow for this so that '_size' does allow + // enough room for the specified number of columns and lines to fit + + QSize newSize = QSize( columns * _fontWidth , + lines * _fontHeight ); + + if ( newSize != size() ) + { + _size = newSize; + updateGeometry(); + } +} + +void TerminalView::setFixedSize(int cols, int lins) +{ + _isFixedSize = true; + + //ensure that display is at least one line by one column in size + _columns = qMax(1,cols); + _lines = qMax(1,lins); + _usedColumns = qMin(_usedColumns,_columns); + _usedLines = qMin(_usedLines,_lines); + + if (_image) + { + delete[] _image; + makeImage(); + } + setSize(cols, lins); + QWidget::setFixedSize(_size); +} + +QSize TerminalView::sizeHint() const +{ + return _size; +} + + +/* --------------------------------------------------------------------- */ +/* */ +/* Drag & Drop */ +/* */ +/* --------------------------------------------------------------------- */ + +void TerminalView::dragEnterEvent(QDragEnterEvent* event) +{ + if (event->mimeData()->hasFormat("text/plain")) + event->acceptProposedAction(); +} + +void TerminalView::dropEvent(QDropEvent* event) +{ +// KUrl::List urls = KUrl::List::fromMimeData(event->mimeData()); + + QString dropText; +/* if (!urls.isEmpty()) + { + for ( int i = 0 ; i < urls.count() ; i++ ) + { + KUrl url = KIO::NetAccess::mostLocalUrl( urls[i] , 0 ); + QString urlText; + + if (url.isLocalFile()) + urlText = url.path(); + else + urlText = url.url(); + + // in future it may be useful to be able to insert file names with drag-and-drop + // without quoting them (this only affects paths with spaces in) + urlText = KShell::quoteArg(urlText); + + dropText += urlText; + + if ( i != urls.count()-1 ) + dropText += ' '; + } + } + else + { + dropText = event->mimeData()->text(); + } +*/ + if(event->mimeData()->hasFormat("text/plain")) + { + emit sendStringToEmu(dropText.toLocal8Bit()); + } +} + +void TerminalView::doDrag() +{ + dragInfo.state = diDragging; + dragInfo.dragObject = new QDrag(this); + QMimeData *mimeData = new QMimeData; + mimeData->setText(QApplication::clipboard()->text(QClipboard::Selection)); + dragInfo.dragObject->setMimeData(mimeData); + dragInfo.dragObject->start(Qt::CopyAction); + // Don't delete the QTextDrag object. Qt will delete it when it's done with it. +} + +void TerminalView::outputSuspended(bool suspended) +{ + //create the label when this function is first called + if (!_outputSuspendedLabel) + { + //This label includes a link to an English language website + //describing the 'flow control' (Xon/Xoff) feature found in almost + //all terminal emulators. + //If there isn't a suitable article available in the target language the link + //can simply be removed. + _outputSuspendedLabel = new QLabel( ("<qt>Output has been " + "<a href=\"http://en.wikipedia.org/wiki/XON\">suspended</a>" + " by pressing Ctrl+S." + " Press <b>Ctrl+Q</b> to resume.</qt>"), + this ); + + QPalette palette(_outputSuspendedLabel->palette()); + + palette.setColor(QPalette::Normal, QPalette::WindowText, QColor(Qt::white)); + palette.setColor(QPalette::Normal, QPalette::Window, QColor(Qt::black)); +// KColorScheme::adjustForeground(palette,KColorScheme::NeutralText); +// KColorScheme::adjustBackground(palette,KColorScheme::NeutralBackground); + _outputSuspendedLabel->setPalette(palette); + _outputSuspendedLabel->setAutoFillBackground(true); + _outputSuspendedLabel->setBackgroundRole(QPalette::Base); + _outputSuspendedLabel->setFont(QApplication::font()); + _outputSuspendedLabel->setMargin(5); + + //enable activation of "Xon/Xoff" link in label + _outputSuspendedLabel->setTextInteractionFlags(Qt::LinksAccessibleByMouse | + Qt::LinksAccessibleByKeyboard); + _outputSuspendedLabel->setOpenExternalLinks(true); + _outputSuspendedLabel->setVisible(false); + + _gridLayout->addWidget(_outputSuspendedLabel); + _gridLayout->addItem( new QSpacerItem(0,0,QSizePolicy::Expanding, + QSizePolicy::Expanding), + 1,0); + + } + + _outputSuspendedLabel->setVisible(suspended); +} + +uint TerminalView::lineSpacing() const +{ + return _lineSpacing; +} + +void TerminalView::setLineSpacing(uint i) +{ + _lineSpacing = i; + setVTFont(font()); // Trigger an update. +}
new file mode 100644 --- /dev/null +++ b/libqterminal/TerminalView.h @@ -0,0 +1,753 @@ +/* + Copyright (C) 2007 by Robert Knight <robertknight@gmail.com> + Copyright (C) 1997,1998 by Lars Doelle <lars.doelle@on-line.de> + + Rewritten for QT4 by e_k <e_k at users.sourceforge.net>, Copyright (C)2008 + Copyright (C) 2012 Jacob Dawid <jacob.dawid@googlemail.com> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + 02110-1301 USA. +*/ + +#ifndef TERMINALVIEW_H +#define TERMINALVIEW_H + +// Qt +#include <QtGui/QColor> +#include <QtCore/QPointer> +#include <QtGui/QWidget> + +// Konsole +#include "Filter.h" +#include "Character.h" + +class QDrag; +class QDragEnterEvent; +class QDropEvent; +class QLabel; +class QTimer; +class QEvent; +class QFrame; +class QGridLayout; +class QKeyEvent; +class QScrollBar; +class QShowEvent; +class QHideEvent; +class QWidget; + +extern unsigned short vt100_graphics[32]; + +class ScreenWindow; + +/** + * A widget which displays output from a terminal emulation and sends input keypresses and mouse activity + * to the terminal. + * + * When the terminal emulation receives new output from the program running in the terminal, + * it will update the display by calling updateImage(). + * + * TODO More documentation + */ +class TerminalView : public QWidget +{ + Q_OBJECT + +public: + /** Constructs a new terminal display widget with the specified parent. */ + TerminalView(QWidget *parent = 0); + virtual ~TerminalView(); + + /** Returns the terminal color palette used by the display. */ + const ColorEntry* colorTable() const; + /** Sets the terminal color palette used by the display. */ + void setColorTable(const ColorEntry table[]); + /** + * Sets the seed used to generate random colors for the display + * (in color schemes that support them). + */ + void setRandomSeed(uint seed); + /** + * Returns the seed used to generate random colors for the display + * (in color schemes that support them). + */ + uint randomSeed() const; + + /** Sets the opacity of the terminal display. */ + void setOpacity(qreal opacity); + + /** + * This enum describes the location where the scroll bar is positioned in the display widget. + */ + enum ScrollBarPosition + { + /** Do not show the scroll bar. */ + NoScrollBar=0, + /** Show the scroll bar on the left side of the display. */ + ScrollBarLeft=1, + /** Show the scroll bar on the right side of the display. */ + ScrollBarRight=2 + }; + /** + * Specifies whether the terminal display has a vertical scroll bar, and if so whether it + * is shown on the left or right side of the display. + */ + void setScrollBarPosition(ScrollBarPosition position); + + /** + * Sets the current position and range of the display's scroll bar. + * + * @param cursor The position of the scroll bar's thumb. + * @param lines The maximum value of the scroll bar. + */ + void setScroll(int cursor, int lines); + + /** + * Returns the display's filter chain. When the image for the display is updated, + * the text is passed through each filter in the chain. Each filter can define + * hotspots which correspond to certain strings (such as URLs or particular words). + * Depending on the type of the hotspots created by the filter ( returned by Filter::Hotspot::type() ) + * the view will draw visual cues such as underlines on mouse-over for links or translucent + * rectangles for markers. + * + * To add a new filter to the view, call: + * viewWidget->filterChain()->addFilter( filterObject ); + */ + FilterChain* filterChain() const; + + /** + * Updates the filters in the display's filter chain. This will cause + * the hotspots to be updated to match the current image. + * + * WARNING: This function can be expensive depending on the + * image size and number of filters in the filterChain() + * + * TODO - This API does not really allow efficient usage. Revise it so + * that the processing can be done in a better way. + * + * eg: + * - Area of interest may be known ( eg. mouse cursor hovering + * over an area ) + */ + void processFilters(); + + /** + * Returns a list of menu actions created by the filters for the content + * at the given @p position. + */ + QList<QAction*> filterActions(const QPoint& position); + + /** Returns true if the cursor is set to blink or false otherwise. */ + bool blinkingCursor() { return _hasBlinkingCursor; } + /** Specifies whether or not the cursor blinks. */ + void setBlinkingCursor(bool blink); + + void setCtrlDrag(bool enable) { _ctrlDrag=enable; } + bool ctrlDrag() { return _ctrlDrag; } + + /** + * This enum describes the methods for selecting text when + * the user triple-clicks within the display. + */ + enum TripleClickMode + { + /** Select the whole line underneath the cursor. */ + SelectWholeLine, + /** Select from the current cursor position to the end of the line. */ + SelectForwardsFromCursor + }; + /** Sets how the text is selected when the user triple clicks within the display. */ + void setTripleClickMode(TripleClickMode mode) { _tripleClickMode = mode; } + /** See setTripleClickSelectionMode() */ + TripleClickMode tripleClickMode() { return _tripleClickMode; } + + void setLineSpacing(uint); + uint lineSpacing() const; + + void emitSelection(bool useXselection,bool appendReturn); + + /** + * This enum describes the available shapes for the keyboard cursor. + * See setKeyboardCursorShape() + */ + enum KeyboardCursorShape + { + /** A rectangular block which covers the entire area of the cursor character. */ + BlockCursor, + /** + * A single flat line which occupies the space at the bottom of the cursor + * character's area. + */ + UnderlineCursor, + /** + * An cursor shaped like the capital letter 'I', similar to the IBeam + * cursor used in Qt/KDE text editors. + */ + IBeamCursor + }; + /** + * Sets the shape of the keyboard cursor. This is the cursor drawn + * at the position in the terminal where keyboard input will appear. + * + * In addition the terminal display widget also has a cursor for + * the mouse pointer, which can be set using the QWidget::setCursor() + * method. + * + * Defaults to BlockCursor + */ + void setKeyboardCursorShape(KeyboardCursorShape shape); + /** + * Returns the shape of the keyboard cursor. See setKeyboardCursorShape() + */ + KeyboardCursorShape keyboardCursorShape() const; + + /** + * Sets the color used to draw the keyboard cursor. + * + * The keyboard cursor defaults to using the foreground color of the character + * underneath it. + * + * @param useForegroundColor If true, the cursor color will change to match + * the foreground color of the character underneath it as it is moved, in this + * case, the @p color parameter is ignored and the color of the character + * under the cursor is inverted to ensure that it is still readable. + * @param color The color to use to draw the cursor. This is only taken into + * account if @p useForegroundColor is false. + */ + void setKeyboardCursorColor(bool useForegroundColor , const QColor& color); + + /** + * Returns the color of the keyboard cursor, or an invalid color if the keyboard + * cursor color is set to change according to the foreground color of the character + * underneath it. + */ + QColor keyboardCursorColor() const; + + /** + * Returns the number of lines of text which can be displayed in the widget. + * + * This will depend upon the height of the widget and the current font. + * See fontHeight() + */ + int lines() { return _lines; } + /** + * Returns the number of characters of text which can be displayed on + * each line in the widget. + * + * This will depend upon the width of the widget and the current font. + * See fontWidth() + */ + int columns() { return _columns; } + + /** + * Returns the height of the characters in the font used to draw the text in the display. + */ + int fontHeight() { return _fontHeight; } + /** + * Returns the width of the characters in the display. + * This assumes the use of a fixed-width font. + */ + int fontWidth() { return _fontWidth; } + + void setSize(int cols, int lins); + void setFixedSize(int cols, int lins); + + // reimplemented + QSize sizeHint() const; + + /** + * Sets which characters, in addition to letters and numbers, + * are regarded as being part of a word for the purposes + * of selecting words in the display by double clicking on them. + * + * The word boundaries occur at the first and last characters which + * are either a letter, number, or a character in @p wc + * + * @param wc An array of characters which are to be considered parts + * of a word ( in addition to letters and numbers ). + */ + void setWordCharacters(const QString& wc); + /** + * Returns the characters which are considered part of a word for the + * purpose of selecting words in the display with the mouse. + * + * @see setWordCharacters() + */ + QString wordCharacters() { return _wordCharacters; } + + /** + * Sets the type of effect used to alert the user when a 'bell' occurs in the + * terminal session. + * + * The terminal session can trigger the bell effect by calling bell() with + * the alert message. + */ + void setBellMode(int mode); + /** + * Returns the type of effect used to alert the user when a 'bell' occurs in + * the terminal session. + * + * See setBellMode() + */ + int bellMode() { return _bellMode; } + + /** + * This enum describes the different types of sounds and visual effects which + * can be used to alert the user when a 'bell' occurs in the terminal + * session. + */ + enum BellMode + { + /** A system beep. */ + SystemBeepBell=0, + /** + * KDE notification. This may play a sound, show a passive popup + * or perform some other action depending on the user's settings. + */ + NotifyBell=1, + /** A silent, visual bell (eg. inverting the display's colors briefly) */ + VisualBell=2, + /** No bell effects */ + NoBell=3 + }; + + void setSelection(const QString &t); + + /** + * Reimplemented. Has no effect. Use setVTFont() to change the font + * used to draw characters in the display. + */ + virtual void setFont(const QFont &); + + + /** Returns the font used to draw characters in the display */ + QFont getVTFont() { return font(); } + + /** + * Sets the font used to draw the display. Has no effect if @p font + * is larger than the size of the display itself. + */ + void setVTFont(const QFont& font); + + + /** + * Specified whether terminal widget should be at read-only mode + * Defaults to false. + */ + void setReadOnly( bool readonly) { _readonly = readonly; } + + /** + * Specified whether anti-aliasing of text in the terminal display + * is enabled or not. Defaults to enabled. + */ + static void setAntialias( bool antialias ) { _antialiasText = antialias; } + /** + * Returns true if anti-aliasing of text in the terminal is enabled. + */ + static bool antialias() { return _antialiasText; } + + /** + * Sets whether or not the current height and width of the + * terminal in lines and columns is displayed whilst the widget + * is being resized. + */ + void setTerminalSizeHint(bool on) { _terminalSizeHint=on; } + /** + * Returns whether or not the current height and width of + * the terminal in lines and columns is displayed whilst the widget + * is being resized. + */ + bool terminalSizeHint() { return _terminalSizeHint; } + /** + * Sets whether the terminal size display is shown briefly + * after the widget is first shown. + * + * See setTerminalSizeHint() , isTerminalSizeHint() + */ + void setTerminalSizeStartup(bool on) { _terminalSizeStartup=on; } + + void setBidiEnabled(bool set) { _bidiEnabled=set; } + bool isBidiEnabled() { return _bidiEnabled; } + + /** + * Sets the terminal screen section which is displayed in this widget. + * When updateImage() is called, the display fetches the latest character image from the + * the associated terminal screen window. + * + * In terms of the model-view paradigm, the ScreenWindow is the model which is rendered + * by the TerminalDisplay. + */ + void setScreenWindow( ScreenWindow* window ); + /** Returns the terminal screen section which is displayed in this widget. See setScreenWindow() */ + ScreenWindow* screenWindow() const; + + static bool HAVE_TRANSPARENCY; + +public slots: + + /** + * Causes the terminal display to fetch the latest character image from the associated + * terminal screen ( see setScreenWindow() ) and redraw the display. + */ + void updateImage(); + /** + * Causes the terminal display to fetch the latest line status flags from the + * associated terminal screen ( see setScreenWindow() ). + */ + void updateLineProperties(); + + /** Copies the selected text to the clipboard. */ + void copyClipboard(); + /** + * Pastes the content of the clipboard into the + * display. + */ + void pasteClipboard(); + /** + * Pastes the content of the selection into the + * display. + */ + void pasteSelection(); + + /** + * Causes the widget to display or hide a message informing the user that terminal + * output has been suspended (by using the flow control key combination Ctrl+S) + * + * @param suspended True if terminal output has been suspended and the warning message should + * be shown or false to indicate that terminal output has been resumed and that + * the warning message should disappear. + */ + void outputSuspended(bool suspended); + + /** + * Sets whether the program whoose output is being displayed in the view + * is interested in mouse events. + * + * If this is set to true, mouse signals will be emitted by the view when the user clicks, drags + * or otherwise moves the mouse inside the view. + * The user interaction needed to create selections will also change, and the user will be required + * to hold down the shift key to create a selection or perform other mouse activities inside the + * view area - since the program running in the terminal is being allowed to handle normal mouse + * events itself. + * + * @param usesMouse Set to true if the program running in the terminal is interested in mouse events + * or false otherwise. + */ + void setUsesMouse(bool usesMouse); + + /** See setUsesMouse() */ + bool usesMouse() const; + + /** + * Shows a notification that a bell event has occurred in the terminal. + * TODO: More documentation here + */ + void bell(const QString& message); + +signals: + + /** + * Emitted when the user presses a key whilst the terminal widget has focus. + */ + void keyPressedSignal(QKeyEvent *e); + + /** + * Emitted when the user presses the suspend or resume flow control key combinations + * + * @param suspend true if the user pressed Ctrl+S (the suspend output key combination) or + * false if the user pressed Ctrl+Q (the resume output key combination) + */ + void flowControlKeyPressed(bool suspend); + + /** + * A mouse event occurred. + * @param button The mouse button (0 for left button, 1 for middle button, 2 for right button, 3 for release) + * @param column The character column where the event occurred + * @param line The character row where the event occurred + * @param eventType The type of event. 0 for a mouse press / release or 1 for mouse motion + */ + void mouseSignal(int button, int column, int line, int eventType); + void changedFontMetricSignal(int height, int width); + void changedContentSizeSignal(int height, int width); + + /** + * Emitted when the user right clicks on the display, or right-clicks with the Shift + * key held down if usesMouse() is true. + * + * This can be used to display a context menu. + */ + void configureRequest( TerminalView*, int state, const QPoint& position ); + + void isBusySelecting(bool); + void sendStringToEmu(const char*); + + void tripleClicked( const QString& text ); + +protected: + virtual bool event( QEvent * ); + + virtual void paintEvent( QPaintEvent * ); + + virtual void showEvent(QShowEvent*); + virtual void hideEvent(QHideEvent*); + virtual void resizeEvent(QResizeEvent*); + + virtual void fontChange(const QFont &font); + + virtual void keyPressEvent(QKeyEvent* event); + virtual void mouseDoubleClickEvent(QMouseEvent* ev); + virtual void mousePressEvent( QMouseEvent* ); + virtual void mouseReleaseEvent( QMouseEvent* ); + virtual void mouseMoveEvent( QMouseEvent* ); + virtual void extendSelection( const QPoint& pos ); + virtual void wheelEvent( QWheelEvent* ); + + virtual bool focusNextPrevChild( bool next ); + + // drag and drop + virtual void dragEnterEvent(QDragEnterEvent* event); + virtual void dropEvent(QDropEvent* event); + void doDrag(); + enum DragState { diNone, diPending, diDragging }; + + struct _dragInfo { + DragState state; + QPoint start; + QDrag *dragObject; + } dragInfo; + + virtual int charClass(quint16) const; + + void clearImage(); + + void mouseTripleClickEvent(QMouseEvent* ev); + + // reimplemented + virtual void inputMethodEvent ( QInputMethodEvent* event ); + virtual QVariant inputMethodQuery( Qt::InputMethodQuery query ) const; + +protected slots: + + void scrollBarPositionChanged(int value); + void blinkEvent(); + void blinkCursorEvent(); + + //Renables bell noises and visuals. Used to disable further bells for a short period of time + //after emitting the first in a sequence of bell events. + void enableBell(); + +private slots: + + void swapColorTable(); + void tripleClickTimeout(); // resets possibleTripleClick + +private: + + // -- Drawing helpers -- + + // divides the part of the display specified by 'rect' into + // fragments according to their colors and styles and calls + // drawTextFragment() to draw the fragments + void drawContents(QPainter &paint, const QRect &rect); + // draws a section of text, all the text in this section + // has a common color and style + void drawTextFragment(QPainter& painter, const QRect& rect, + const QString& text, const Character* style); + // draws the background for a text fragment + // if useOpacitySetting is true then the color's alpha value will be set to + // the display's transparency (set with setOpacity()), otherwise the background + // will be drawn fully opaque + void drawBackground(QPainter& painter, const QRect& rect, const QColor& color, + bool useOpacitySetting); + // draws the cursor character + void drawCursor(QPainter& painter, const QRect& rect , const QColor& foregroundColor, + const QColor& backgroundColor , bool& invertColors); + // draws the characters or line graphics in a text fragment + void drawCharacters(QPainter& painter, const QRect& rect, const QString& text, + const Character* style, bool invertCharacterColor); + // draws a string of line graphics + void drawLineCharString(QPainter& painter, int x, int y, + const QString& str, const Character* attributes); + + // draws the preedit string for input methods + void drawInputMethodPreeditString(QPainter& painter , const QRect& rect); + + // -- + + // maps an area in the character image to an area on the widget + QRect imageToWidget(const QRect& imageArea) const; + + // maps a point on the widget to the position ( ie. line and column ) + // of the character at that point. + void getCharacterPosition(const QPoint& widgetPoint,int& line,int& column) const; + + // the area where the preedit string for input methods will be draw + QRect preeditRect() const; + + // shows a notification window in the middle of the widget indicating the terminal's + // current size in columns and lines + void showResizeNotification(); + + // scrolls the image by a number of lines. + // 'lines' may be positive ( to scroll the image down ) + // or negative ( to scroll the image up ) + // 'region' is the part of the image to scroll - currently only + // the top, bottom and height of 'region' are taken into account, + // the left and right are ignored. + void scrollImage(int lines , const QRect& region); + + void calcGeometry(); + void propagateSize(); + void updateImageSize(); + void makeImage(); + + void paintFilters(QPainter& painter); + + // returns a region covering all of the areas of the widget which contain + // a hotspot + QRegion hotSpotRegion() const; + + // returns the position of the cursor in columns and lines + QPoint cursorPosition() const; + + // the window onto the terminal screen which this display + // is currently showing. + QPointer<ScreenWindow> _screenWindow; + + bool _allowBell; + + QGridLayout* _gridLayout; + + bool _fixedFont; // has fixed pitch + int _fontHeight; // height + int _fontWidth; // width + int _fontAscent; // ascend + + int _leftMargin; // offset + int _topMargin; // offset + + int _lines; // the number of lines that can be displayed in the widget + int _columns; // the number of columns that can be displayed in the widget + + int _usedLines; // the number of lines that are actually being used, this will be less + // than 'lines' if the character image provided with setImage() is smaller + // than the maximum image size which can be displayed + + int _usedColumns; // the number of columns that are actually being used, this will be less + // than 'columns' if the character image provided with setImage() is smaller + // than the maximum image size which can be displayed + + int _contentHeight; + int _contentWidth; + Character* _image; // [lines][columns] + // only the area [usedLines][usedColumns] in the image contains valid data + + int _imageSize; + QVector<LineProperty> _lineProperties; + + ColorEntry _colorTable[TABLE_COLORS]; + uint _randomSeed; + + bool _resizing; + bool _terminalSizeHint; + bool _terminalSizeStartup; + bool _bidiEnabled; + bool _mouseMarks; + + QPoint _iPntSel; // initial selection point + QPoint _pntSel; // current selection point + QPoint _tripleSelBegin; // help avoid flicker + int _actSel; // selection state + bool _wordSelectionMode; + bool _lineSelectionMode; + bool _preserveLineBreaks; + bool _columnSelectionMode; + + QClipboard* _clipboard; + QScrollBar* _scrollBar; + ScrollBarPosition _scrollbarLocation; + QString _wordCharacters; + int _bellMode; + + bool _blinking; // hide text in paintEvent + bool _hasBlinker; // has characters to blink + bool _cursorBlinking; // hide cursor in paintEvent + bool _hasBlinkingCursor; // has blinking cursor enabled + bool _ctrlDrag; // require Ctrl key for drag + TripleClickMode _tripleClickMode; + bool _isFixedSize; //Columns / lines are locked. + QTimer* _blinkTimer; // active when hasBlinker + QTimer* _blinkCursorTimer; // active when hasBlinkingCursor + +// KMenu* _drop; + QString _dropText; + int _dndFileCount; + + bool _possibleTripleClick; // is set in mouseDoubleClickEvent and deleted + // after QApplication::doubleClickInterval() delay + + + QLabel* _resizeWidget; + QTimer* _resizeTimer; + + bool _flowControlWarningEnabled; + + //widgets related to the warning message that appears when the user presses Ctrl+S to suspend + //terminal output - informing them what has happened and how to resume output + QLabel* _outputSuspendedLabel; + + uint _lineSpacing; + + bool _colorsInverted; // true during visual bell + + QSize _size; + + QRgb _blendColor; + + // list of filters currently applied to the display. used for links and + // search highlight + TerminalImageFilterChain* _filterChain; + QRect _mouseOverHotspotArea; + + KeyboardCursorShape _cursorShape; + + // custom cursor color. if this is invalid then the foreground + // color of the character under the cursor is used + QColor _cursorColor; + + + struct InputMethodData + { + QString preeditString; + QRect previousPreeditRect; + }; + InputMethodData _inputMethodData; + + static bool _antialiasText; // do we antialias or not + + //the delay in milliseconds between redrawing blinking text + static const int BLINK_DELAY = 500; + static const int DEFAULT_LEFT_MARGIN = 1; + static const int DEFAULT_TOP_MARGIN = 1; + + bool _readonly; + +public: + static void setTransparencyEnabled(bool enable) + { + HAVE_TRANSPARENCY = enable; + } +}; + +#endif // TERMINALVIEW_H
--- a/libqterminal/libqterminal.pro +++ b/libqterminal/libqterminal.pro @@ -27,9 +27,9 @@ ScreenWindow.h \ TerminalCharacterDecoder.h \ Vt102Emulation.h \ - SessionView.h \ SelfListener.h \ - TerminalModel.h + TerminalModel.h \ + TerminalView.h SOURCES = BlockArray.cpp \ Emulation.cpp \ Filter.cpp \ @@ -42,6 +42,6 @@ ScreenWindow.cpp \ TerminalCharacterDecoder.cpp \ Vt102Emulation.cpp \ - SessionView.cpp \ SelfListener.cpp \ - TerminalModel.cpp + TerminalModel.cpp \ + TerminalView.cpp