added zoom buttons

src/articleview.hh

@@ -83,6 +83,9 @@ public:
   /// Plays the first audio reference on the page, if any.
   void playSound();
 
+  void setZoomFactor( qreal factor )
+  { ui.definition->setZoomFactor( factor ); }
+
 signals:
 
   void iconChanged( ArticleView *, QIcon const & icon );

src/config.cc

@@ -88,7 +88,9 @@ Preferences::Preferences():
   scanPopupAltModeSecs( 3 ),
   pronounceOnLoadMain( false ),
   pronounceOnLoadPopup( false ),
-  checkForNewReleases( true )
+  checkForNewReleases( true ),
+
+  zoomFactor( 1 )
 {
 }
 
@@ -333,6 +335,15 @@ Class load() throw( exError )
     c.preferences.closeToTray = ( preferences.namedItem( "closeToTray" ).toElement().text() == "1" );
     c.preferences.autoStart = ( preferences.namedItem( "autoStart" ).toElement().text() == "1" );
 
+    if ( !preferences.namedItem( "zoomFactor" ).isNull() )
+    {
+      c.preferences.zoomFactor = preferences.namedItem( "zoomFactor" ).toElement().text().toDouble();
+      if ( c.preferences.zoomFactor < 0.5 )
+        c.preferences.zoomFactor = 0.5;
+      else if ( c.preferences.zoomFactor > 5 )
+        c.preferences.zoomFactor = 5;
+    }
+
     applyBoolOption( c.preferences.enableMainWindowHotkey, preferences.namedItem( "enableMainWindowHotkey" ) );
     if ( !preferences.namedItem( "mainWindowHotkey" ).isNull() )
       c.preferences.mainWindowHotkey = QKeySequence::fromString( preferences.namedItem( "mainWindowHotkey" ).toElement().text() );
@@ -582,6 +593,10 @@ void save( Class const & c ) throw( exError )
     opt.appendChild( dd.createTextNode( c.preferences.autoStart ? "1":"0" ) );
     preferences.appendChild( opt );
 
+    opt = dd.createElement( "zoomFactor" );
+    opt.appendChild( dd.createTextNode( QString::number( c.preferences.zoomFactor ) ) );
+    preferences.appendChild( opt );
+
     opt = dd.createElement( "enableMainWindowHotkey" );
     opt.appendChild( dd.createTextNode( c.preferences.enableMainWindowHotkey ? "1":"0" ) );
     preferences.appendChild( opt );

src/config.hh

@@ -155,6 +155,8 @@ struct Preferences
 
   bool checkForNewReleases;
 
+  qreal zoomFactor;
+
   Preferences();
 };
 

src/mainwindow.cc

@@ -77,6 +77,20 @@ MainWindow::MainWindow( Config::Class & cfg_ ):
   connect( navPronounce, SIGNAL( triggered() ),
            this, SLOT( pronounce() ) );
 
+  // zooming
+  navToolbar->addSeparator();
+  zoomIn = navToolbar->addAction( QIcon( ":/icons/icon32_zoomin.png" ), tr( "Increase zoom factor" ) );
+  zoomOut = navToolbar->addAction( QIcon( ":/icons/icon32_zoomout.png" ), tr( "Decrease zoom factor" ) );
+  zoomBase = navToolbar->addAction( QIcon( ":/icons/icon32_zoombase.png" ), tr( "Reset zoom factor to default" ) );
+
+  connect( zoomIn, SIGNAL( triggered() ),
+           this, SLOT( zoomin() ) );
+  connect( zoomOut, SIGNAL( triggered() ),
+           this, SLOT( zoomout() ) );
+  connect( zoomBase, SIGNAL( triggered() ),
+           this, SLOT( unzoom() ) );
+
+  // tray icon
   connect( trayIconMenu.addAction( tr( "Show &Main Window" ) ), SIGNAL( activated() ),
            this, SLOT( showMainWindow() ) );
   trayIconMenu.addAction( enableScanPopup );
@@ -466,6 +480,8 @@ ArticleView * MainWindow::createNewTab( bool switchToIt,
   if ( switchToIt )
     ui.tabWidget->setCurrentIndex( index );
 
+  view->setZoomFactor( cfg.preferences.zoomFactor );
+
   return view;
 }
 
@@ -1198,3 +1214,37 @@ void MainWindow::on_actionCloseToTray_activated()
 {
   toggleMainWindow( !cfg.preferences.enableTrayIcon );
 }
+
+void MainWindow::zoomin()
+{
+  if ( cfg.preferences.zoomFactor >= 5 )
+    return; // 5x is maximum
+
+  cfg.preferences.zoomFactor += 0.1;
+  applyZoomFactor();
+}
+
+void MainWindow::zoomout()
+{
+  if ( cfg.preferences.zoomFactor <= 0.5 )
+    return; // 0.5x is minimum
+
+  cfg.preferences.zoomFactor -= 0.1;
+  applyZoomFactor();
+}
+
+void MainWindow::unzoom()
+{
+  cfg.preferences.zoomFactor = 1;
+  applyZoomFactor();
+}
+
+void MainWindow::applyZoomFactor()
+{
+  for ( int i = 0; i < ui.tabWidget->count(); i++ )
+  {
+    ArticleView & view =
+      dynamic_cast< ArticleView & >( *( ui.tabWidget->widget(i) ) );
+    view.setZoomFactor( cfg.preferences.zoomFactor );
+  }
+}

src/mainwindow.hh

@@ -50,6 +50,7 @@ private:
           switchToNextTabAction, switchToPrevTabAction;
   QToolBar * navToolbar;
   QAction * navBack, * navForward, * navPronounce, * enableScanPopup;
+  QAction * zoomIn, * zoomOut, * zoomBase;
   QMenu trayIconMenu;
   QToolButton addTab;
   Config::Class & cfg;
@@ -100,6 +101,8 @@ private:
   /// Creates hotkeyWrapper and hooks the currently set keys for it
   void installHotKeys();
 
+  void applyZoomFactor();
+
 private slots:
 
   void hotKeyActivated( int );
@@ -143,6 +146,10 @@ private slots:
   /// reference, if it has any.
   void pronounce();
 
+  void zoomin();
+  void zoomout();
+  void unzoom();
+
   void editDictionaries();
   void editPreferences();
 

src/resources.qrc

@@ -21,5 +21,8 @@
         <file>icons/icon32_dictd.png</file>
         <file>icons/icon32_hunspell.png</file>
         <file>icons/icon32_wiki.png</file>
+        <file>icons/icon32_zoombase.png</file>
+        <file>icons/icon32_zoomin.png</file>
+        <file>icons/icon32_zoomout.png</file>
     </qresource>
 </RCC>