# HG changeset patch
# User Torsten <ttl@justmail.de>
# Date 1388493105 -3600
# Node ID b3838cedfe046496bec81c91377324ff3ce89a77
# Parent  256e280850f1c8bee8c83e57f188f16815e5ef62
redesign of dock widgets title bar with configurable colors

* octave-dock-widget.cc (constructor): connect settings_changed signal to new
  slot handle_settings;
  (handle_settings): common settings for all dock widgets: style sheet, this
  functions calls notice_settings for individual settings;
  (make_window,make_widget): change dock-/undock-icon

* octave-dock-widget.h: new slot handle_settings

* settings-dialog.cc (constructor): check box and color pickers for title bar;
  (write_changed_settings): store colors to settings file

* settings-dialog.h: new color-pickers as class variables

* settings-dialog.ui: check box and color pickers for title bar colors

diff --git a/libgui/src/octave-dock-widget.cc b/libgui/src/octave-dock-widget.cc
--- a/libgui/src/octave-dock-widget.cc
+++ b/libgui/src/octave-dock-widget.cc
@@ -27,7 +27,6 @@
 
 #include <QApplication>
 #include <QToolBar>
-#include <QToolButton>
 #include <QAction>
 #include <QHBoxLayout>
 #include <QLabel>
@@ -48,7 +47,7 @@
            this, SLOT (handle_visibility_changed (bool)));
 
   connect (p, SIGNAL (settings_changed (const QSettings*)),
-           this, SLOT (notice_settings (const QSettings*)));
+           this, SLOT (handle_settings (const QSettings*)));
 
 #if defined (Q_OS_WIN32)
   // windows: add an extra title bar that persists when floating
@@ -61,31 +60,31 @@
   _dock_action-> setToolTip (tr ("Undock widget"));
   connect (_dock_action, SIGNAL (triggered (bool)),
            this, SLOT (change_floating (bool)));
-  QToolButton *dock_button = new QToolButton (this);
-  dock_button->setDefaultAction (_dock_action);
-  dock_button->setFocusPolicy (Qt::NoFocus);
-  dock_button->setIconSize (QSize (12,12));
+  _dock_button = new QToolButton (this);
+  _dock_button->setDefaultAction (_dock_action);
+  _dock_button->setFocusPolicy (Qt::NoFocus);
+  _dock_button->setIconSize (QSize (12,12));
 
   QAction *close_action = new QAction
                    (QIcon (":/actions/icons/widget-close.png"), "", this );
   close_action-> setToolTip (tr ("Hide widget"));
   connect (close_action, SIGNAL (triggered (bool)),
            this, SLOT (change_visibility (bool)));
-  QToolButton *close_button = new QToolButton (this);
-  close_button->setDefaultAction (close_action);
-  close_button->setFocusPolicy (Qt::NoFocus);
-  close_button->setIconSize (QSize (12,12));
+  _close_button = new QToolButton (this);
+  _close_button->setDefaultAction (close_action);
+  _close_button->setFocusPolicy (Qt::NoFocus);
+  _close_button->setIconSize (QSize (12,12));
 
   QHBoxLayout *h_layout = new QHBoxLayout ();
   h_layout->addStretch (100);
-  h_layout->addWidget (dock_button);
-  h_layout->addWidget (close_button);
+  h_layout->addWidget (_dock_button);
+  h_layout->addWidget (_close_button);
   h_layout->setSpacing (0);
-  h_layout->setContentsMargins (6,0,0,0);
+  h_layout->setContentsMargins (5,2,2,2);
 
-  QWidget *title_widget = new QWidget ();
-  title_widget->setLayout (h_layout);
-  setTitleBarWidget (title_widget);
+  _title_widget = new QWidget ();
+  _title_widget->setLayout (h_layout);
+  setTitleBarWidget (_title_widget);
 
 #else
 
@@ -183,6 +182,10 @@
   // non windows: Just set the appripriate window flag
   setWindowFlags (Qt::Window);
 
+  QString css = styleSheet ();
+  css.replace ("widget-undock.png","widget-dock.png");
+  setStyleSheet (css);
+
 #endif
 
   _floating = true;
@@ -228,6 +231,10 @@
   // non windows: just say we are a docked widget again
   setWindowFlags (Qt::Widget);
 
+  QString css = styleSheet ();
+  css.replace ("widget-dock.png","widget-undock.png");
+  setStyleSheet (css);
+
 #endif
 
   _floating = false;
@@ -262,3 +269,77 @@
   if (w && w->focusProxy ()) w = w->focusProxy ();
   return w;
 }
+
+void
+octave_dock_widget::handle_settings (const QSettings *settings)
+{
+  QString css;
+  QString css_button;
+  QString dock_icon;
+  if (_floating)
+    dock_icon = "widget-dock.png";
+  else
+    dock_icon = "widget-undock.png";
+
+  if (settings->value ("DockWidgets/widget_title_custom_style",false).toBool ())
+    {
+
+      QColor default_var = QColor (0,0,0);
+      QColor fg_color = settings->value ("Dockwidgets/title_fg_color",
+                                         default_var).value<QColor> ();
+
+      default_var = QColor (255,255,255);
+      QColor bg_color = settings->value ("Dockwidgets/title_bg_color",
+                                         default_var).value<QColor> ();
+
+      QString bg_icon = QString ("transparent");
+      if (bg_color.lightness () < 128)
+        bg_icon = fg_color.name ();
+
+#if defined (Q_OS_WIN32)
+      css = QString ("background: %1; color: %2 ;").
+                     arg (bg_color.name ()).
+                     arg (fg_color.name ());
+      css_button = QString ("background: %3; border: 0px;").arg (bg_icon);
+#else
+      css = QString ("QDockWidget::title { background: %1;"
+                     "                     text-align: center left;"
+                     "                     padding: 0px 0px 0px 4px;}\n"
+                     "QDockWidget { color: %2 ; "
+                     "  titlebar-close-icon: url(:/actions/icons/widget-close.png);"
+                     "  titlebar-normal-icon: url(:/actions/icons/"+dock_icon+"); }"
+                     "QDockWidget::close-button,"
+                     "QDockWidget::float-button { background: %3; border: 0px;}"
+                     ).
+                     arg (bg_color.name ()).
+                     arg (fg_color.name ()).
+                     arg (bg_icon);
+#endif
+    }
+  else
+    {
+#if defined (Q_OS_WIN32)
+      css = QString ("");
+      css_button = QString ("background: transparent; border: 0px;");
+#else
+      css = QString ("QDockWidget::title { text-align: center left;"
+                     "                     padding: 0px 0px 0px 4px;}"
+                     "QDockWidget {"
+                     "  titlebar-close-icon: url(:/actions/icons/widget-close.png);"
+                     "  titlebar-normal-icon: url(:/actions/icons/"+dock_icon+"); }"
+                     "QDockWidget::close-button,"
+                     "QDockWidget::float-button { border: 0px; }"
+                    );
+#endif
+    }
+
+#if defined (Q_OS_WIN32)
+  _title_widget->setStyleSheet (css);
+  _dock_button->setStyleSheet (css_button);
+  _close_button->setStyleSheet (css_button);
+#else
+  setStyleSheet (css);
+#endif
+
+  notice_settings (settings);  // call individual handler
+}
diff --git a/libgui/src/octave-dock-widget.h b/libgui/src/octave-dock-widget.h
--- a/libgui/src/octave-dock-widget.h
+++ b/libgui/src/octave-dock-widget.h
@@ -27,6 +27,7 @@
 #include <QSettings>
 #include <QIcon>
 #include <QMainWindow>
+#include <QToolButton>
 #include <QMouseEvent>
 
 class octave_dock_widget : public QDockWidget
@@ -81,6 +82,7 @@
   virtual void notice_settings (const QSettings*)
   {
   }
+  void handle_settings (const QSettings*);
 
   QMainWindow *main_win () { return _parent; }
 
@@ -111,6 +113,12 @@
   QAction *_dock_action;
   bool _floating;
 
+#if defined (Q_OS_WIN32)
+  QWidget *_title_widget;
+  QToolButton *_dock_button;
+  QToolButton *_close_button;
+#endif
+
 };
 
 #endif
diff --git a/libgui/src/settings-dialog.cc b/libgui/src/settings-dialog.cc
--- a/libgui/src/settings-dialog.cc
+++ b/libgui/src/settings-dialog.cc
@@ -90,6 +90,29 @@
   ui->general_icon_graphic-> setChecked (widget_icon_set == "GRAPHIC");
   ui->general_icon_letter-> setChecked (widget_icon_set == "LETTER");
 
+  // custom title bar of dock widget
+  QVariant default_var = QColor (255,255,255);
+  QColor bg_color = settings->value ("Dockwidgets/title_bg_color",
+                                      default_var).value<QColor> ();
+  _widget_title_bg_color = new color_picker (bg_color);
+  _widget_title_bg_color->setEnabled (false);
+  ui->layout_widget_bgtitle->addWidget (_widget_title_bg_color,0);
+  connect (ui->cb_widget_custom_style, SIGNAL (toggled (bool)),
+           _widget_title_bg_color, SLOT (setEnabled (bool)));
+
+  default_var = QColor (0,0,0);
+  QColor fg_color = settings->value ("Dockwidgets/title_fg_color",
+                                      default_var).value<QColor> ();
+  _widget_title_fg_color = new color_picker (fg_color);
+  _widget_title_fg_color->setEnabled (false);
+  ui->layout_widget_fgtitle->addWidget (_widget_title_fg_color,0);
+  connect (ui->cb_widget_custom_style, SIGNAL (toggled (bool)),
+           _widget_title_fg_color, SLOT (setEnabled (bool)));
+
+  ui->cb_widget_custom_style->setChecked (
+    settings->value ("DockWidgets/widget_title_custom_style",false).toBool ());
+
+  // editor
   ui->useCustomFileEditor->setChecked (settings->value ("useCustomFileEditor",
                                                         false).toBool ());
   ui->customFileEditor->setText (
@@ -97,7 +120,7 @@
   ui->editor_showLineNumbers->setChecked (
     settings->value ("editor/showLineNumbers",true).toBool () );
 
-  QVariant default_var = QColor (240, 240, 240);
+  default_var = QColor (240, 240, 240);
   QColor setting_color = settings->value ("editor/highlight_current_line_color",
                                           default_var).value<QColor> ();
   _editor_current_line_color = new color_picker (setting_color);
@@ -467,6 +490,14 @@
     language = "SYSTEM";
   settings->setValue ("language", language);
 
+  // dock widget title bar
+  settings->setValue ("DockWidgets/widget_title_custom_style",
+                      ui->cb_widget_custom_style->isChecked ());
+  settings->setValue ("Dockwidgets/title_bg_color",
+                      _widget_title_bg_color->color ());
+  settings->setValue ("Dockwidgets/title_fg_color",
+                      _widget_title_fg_color->color ());
+
   // other settings
   settings->setValue ("toolbar_icon_size", ui->toolbar_icon_size->value ());
   settings->setValue ("useCustomFileEditor",
diff --git a/libgui/src/settings-dialog.h b/libgui/src/settings-dialog.h
--- a/libgui/src/settings-dialog.h
+++ b/libgui/src/settings-dialog.h
@@ -61,6 +61,8 @@
   void read_terminal_colors (QSettings *settings);
   void write_terminal_colors (QSettings *settings);
 
+  color_picker *_widget_title_bg_color;
+  color_picker *_widget_title_fg_color;
   color_picker *_editor_current_line_color;
 };
 
diff --git a/libgui/src/settings-dialog.ui b/libgui/src/settings-dialog.ui
--- a/libgui/src/settings-dialog.ui
+++ b/libgui/src/settings-dialog.ui
@@ -32,7 +32,7 @@
    <item>
     <widget class="QTabWidget" name="tabWidget">
      <property name="currentIndex">
-      <number>3</number>
+      <number>0</number>
      </property>
      <widget class="QWidget" name="tab_general">
       <property name="enabled">
@@ -74,7 +74,7 @@
             </property>
            </widget>
           </item>
-          <item row="2" column="2">
+          <item row="2" column="1">
            <layout class="QHBoxLayout" name="horizontalLayout_6">
             <item>
              <widget class="QSpinBox" name="toolbar_icon_size">
@@ -107,7 +107,7 @@
             </item>
            </layout>
           </item>
-          <item row="1" column="2">
+          <item row="1" column="1">
            <layout class="QHBoxLayout" name="horizontalLayout_8">
             <item>
              <widget class="QComboBox" name="comboBox_language">
@@ -131,7 +131,7 @@
             </item>
            </layout>
           </item>
-          <item row="3" column="2">
+          <item row="3" column="1">
            <layout class="QHBoxLayout" name="horizontalLayout_9">
             <item>
              <widget class="QRadioButton" name="general_icon_octave">
@@ -172,6 +172,95 @@
             </item>
            </layout>
           </item>
+          <item row="4" column="0">
+           <widget class="QLabel" name="label_15">
+            <property name="text">
+             <string>Dock widget title bar</string>
+            </property>
+           </widget>
+          </item>
+          <item row="4" column="1">
+           <layout class="QHBoxLayout" name="horizontalLayout_4">
+            <item>
+             <widget class="QCheckBox" name="cb_widget_custom_style">
+              <property name="text">
+               <string>Custom style</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <spacer name="horizontalSpacer_22">
+              <property name="orientation">
+               <enum>Qt::Horizontal</enum>
+              </property>
+              <property name="sizeType">
+               <enum>QSizePolicy::Fixed</enum>
+              </property>
+              <property name="sizeHint" stdset="0">
+               <size>
+                <width>40</width>
+                <height>20</height>
+               </size>
+              </property>
+             </spacer>
+            </item>
+            <item>
+             <widget class="QLabel" name="label_bgtitle">
+              <property name="enabled">
+               <bool>false</bool>
+              </property>
+              <property name="text">
+               <string>Background color</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <layout class="QHBoxLayout" name="layout_widget_bgtitle"/>
+            </item>
+            <item>
+             <spacer name="horizontalSpacer_23">
+              <property name="orientation">
+               <enum>Qt::Horizontal</enum>
+              </property>
+              <property name="sizeType">
+               <enum>QSizePolicy::Fixed</enum>
+              </property>
+              <property name="sizeHint" stdset="0">
+               <size>
+                <width>12</width>
+                <height>20</height>
+               </size>
+              </property>
+             </spacer>
+            </item>
+            <item>
+             <widget class="QLabel" name="label_fgtitle">
+              <property name="enabled">
+               <bool>false</bool>
+              </property>
+              <property name="text">
+               <string>Text color</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <layout class="QHBoxLayout" name="layout_widget_fgtitle"/>
+            </item>
+            <item>
+             <spacer name="horizontalSpacer_21">
+              <property name="orientation">
+               <enum>Qt::Horizontal</enum>
+              </property>
+              <property name="sizeHint" stdset="0">
+               <size>
+                <width>40</width>
+                <height>20</height>
+               </size>
+              </property>
+             </spacer>
+            </item>
+           </layout>
+          </item>
          </layout>
         </item>
         <item>
@@ -1655,5 +1744,37 @@
     </hint>
    </hints>
   </connection>
+  <connection>
+   <sender>cb_widget_custom_style</sender>
+   <signal>toggled(bool)</signal>
+   <receiver>label_bgtitle</receiver>
+   <slot>setEnabled(bool)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>228</x>
+     <y>156</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>380</x>
+     <y>156</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>cb_widget_custom_style</sender>
+   <signal>toggled(bool)</signal>
+   <receiver>label_fgtitle</receiver>
+   <slot>setEnabled(bool)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>228</x>
+     <y>156</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>496</x>
+     <y>156</y>
+    </hint>
+   </hints>
+  </connection>
  </connections>
 </ui>