/* OctaveGUI - A graphical user interface for Octave
 * Copyright (C) 2011 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 Affero General Public License as
 * published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#include "lexeroctavegui.h"
#include <qcolor.h>
#include <qfont.h>

// -----------------------------------------------------
// Some basic functions
// -----------------------------------------------------
LexerOctaveGui::LexerOctaveGui(QObject *parent)
    : QsciLexer(parent)  // inherit from base lexer
{
}

LexerOctaveGui::~LexerOctaveGui()
{
}

const char *LexerOctaveGui::language() const
{
  return "Octave";  // return the name of the language
}

const char *LexerOctaveGui::lexer() const
{
  return "octave";  // return the name of the lexer
}

// -----------------------------------------------------
// The colors for syntax highlighting
// -----------------------------------------------------
QColor LexerOctaveGui::defaultColor(int style) const
{
    switch (style)
      {
        case Default:  // black
          return QColor(0x00,0x00,0x00);
        case Operator: // red
          return QColor(0xef,0x00,0x00);
        case Comment:  // gray
          return QColor(0x7f,0x7f,0x7f);
        case Command:  // blue-green
          return QColor(0x00,0x7f,0x7f);
        case Number:   // orange
          return QColor(0x7f,0x7f,0x00);
        case Keyword:  // blue
          return QColor(0x00,0x00,0xbf);
        case SingleQuotedString: // green
          return QColor(0x00,0x7f,0x00);
        case DoubleQuotedString: // green-yellow
          return QColor(0x4f,0x7f,0x00);
      }
    return QsciLexer::defaultColor(style);
}


// -----------------------------------------------------
// The font decorations for highlighting
// -----------------------------------------------------
QFont LexerOctaveGui::defaultFont(int style) const
{
    QFont f;

    switch (style)
      {
        case Comment: // default but italic
          f = QsciLexer::defaultFont(style);
          f.setItalic(true);
          break;
        case Keyword: // default
          f = QsciLexer::defaultFont(style);
          break;
        case Operator:  // default
          f = QsciLexer::defaultFont(style);
          break;
        default:        // default
          f = QsciLexer::defaultFont(style);
          break;
      }
    return f;   // return the selected font
}


// -----------------------------------------------------
// Style names
// -----------------------------------------------------
QString LexerOctaveGui::description(int style) const
{
    switch (style)
      {
        case Default:
          return tr("Default");
        case Comment:
          return tr("Comment");
        case Command:
          return tr("Command");
        case Number:
          return tr("Number");
        case Keyword:
          return tr("Keyword");
        case SingleQuotedString:
          return tr("Single-quoted string");
        case Operator:
          return tr("Operator");
        case Identifier:
          return tr("Identifier");
        case DoubleQuotedString:
          return tr("Double-quoted string");
      }
    return QString();
}


// -----------------------------------------------------
// The set of keywords for highlighting
// TODO: How to define a second set?
// -----------------------------------------------------
const char *LexerOctaveGui::keywords(int set) const
{
    if (set == 1)
      {
        return ResourceManager::instance ()->octaveKeywords ();
      }
    return 0;
}