Work on zoom.

src/gui/basewebview.cpp

@@ -44,8 +44,7 @@ void BaseWebView::createConnections() {
           this, SLOT(popupContextMenu(QPoint)));
 
   connect(m_actionOpenLinkNewTab,SIGNAL(triggered()), this, SLOT(openLinkInNewTab()));
-  connect(m_actionOpenImageNewTab, SIGNAL(triggered()),
-          this, SLOT(openImageInNewTab()));
+  connect(m_actionOpenImageNewTab, SIGNAL(triggered()), this, SLOT(openImageInNewTab()));
 }
 
 void BaseWebView::setupIcons() {
@@ -220,6 +219,14 @@ void BaseWebView::paintEvent(QPaintEvent *event) {
   style()->drawControl(QStyle::CE_ShapedFrame, &style_option, &painter, this);
 }
 
-void BaseWebView::setWebPageZoom(int percentage) {
-  setZoomFactor(percentage / 100.0);
+void BaseWebView::increaseWebPageZoom() {
+  setZoomFactor(zoomFactor() + 0.1);
+}
+
+void BaseWebView::decreaseWebPageZoom() {
+  setZoomFactor(zoomFactor() - 0.1);
+}
+
+void BaseWebView::resetWebPageZoom() {
+  setZoomFactor(1.0);
 }

src/gui/basewebview.h

@@ -27,7 +27,9 @@ class BaseWebView : public QWebView {
     void newTabRequested();
 
   public slots:
-    void setWebPageZoom(int percentage = 150);
+    void increaseWebPageZoom();
+    void decreaseWebPageZoom();
+    void resetWebPageZoom();
 
   protected slots:
     // Executes if loading of any page is done.

src/gui/webbrowser.cpp

@@ -75,9 +75,42 @@ WebBrowser::WebBrowser(QWidget *parent)
   setTabOrder(m_toolBar, m_webView);
 
   createConnections();
+  initializeZoomWidget();
   setupIcons();
 }
 
+void WebBrowser::initializeZoomWidget() {
+  // Initializations.
+  m_zoomButtons = new QWidget(this);
+  QLabel *zoom_label = new QLabel(tr("Zoom  "), m_zoomButtons);
+  QHBoxLayout *layout = new QHBoxLayout(m_zoomButtons);
+  QToolButton *button_decrease = new QToolButton(m_zoomButtons);
+  m_btnResetZoom = new QToolButton(m_zoomButtons);
+  QToolButton *button_increase = new QToolButton(m_zoomButtons);
+
+  // Set texts.
+  button_decrease->setText("-");
+  m_btnResetZoom->setText("100%");
+  button_increase->setText("+");
+
+  // Setup layout.
+  layout->addWidget(zoom_label);
+  layout->addWidget(button_decrease);
+  layout->addWidget(m_btnResetZoom);
+  layout->addWidget(button_increase);
+  layout->setSpacing(2);
+  layout->setMargin(3);
+  m_zoomButtons->setLayout(layout);
+
+  // Make connections..
+  connect(button_increase, SIGNAL(clicked()), this, SLOT(increaseZoom()));
+  connect(button_decrease, SIGNAL(clicked()), this, SLOT(decreaseZoom()));
+  connect(m_btnResetZoom, SIGNAL(clicked()), this, SLOT(resetZoom()));
+
+  m_actionZoom = new QWidgetAction(this);
+  m_actionZoom->setDefaultWidget(m_zoomButtons);
+}
+
 void WebBrowser::createConnections() {
   // When user confirms new url, then redirect to it.
   connect(m_txtLocation,SIGNAL(submitted(QString)),
@@ -127,6 +160,25 @@ void WebBrowser::navigateToUrl(const QUrl &url) {
   }
 }
 
+void WebBrowser::increaseZoom() {
+  m_webView->increaseWebPageZoom();
+  m_btnResetZoom->setText(
+        QString("%1%").arg(QString::number(m_webView->zoomFactor() * 100, 'f', 0))
+        );
+}
+
+void WebBrowser::decreaseZoom() {
+  m_webView->decreaseWebPageZoom();
+  m_btnResetZoom->setText(
+        QString("%1%").arg(QString::number(m_webView->zoomFactor() * 100, 'f', 0))
+        );
+}
+
+void WebBrowser::resetZoom() {
+  m_webView->resetWebPageZoom();
+  m_btnResetZoom->setText("100%");
+}
+
 void WebBrowser::navigateToUrl(const QString &textual_url) {
   // Prepare input url.
   QString better_url = textual_url;
@@ -143,6 +195,8 @@ WebBrowser::~WebBrowser() {
 
   // Delete members.
   delete m_layout;
+  delete m_zoomButtons;
+  delete m_actionZoom;
 }
 
 WebBrowser *WebBrowser::webBrowser() {
@@ -153,33 +207,7 @@ QList<QAction *> WebBrowser::globalMenu() {
   QList<QAction*> browser_menu;
 
   // Add needed actions into the menu.
-  browser_menu.append(m_actionReload);
-
-  QWidget *wid = new QWidget(this);
-  QHBoxLayout *lay = new QHBoxLayout(wid);
-  QToolButton *but1 = new QToolButton(wid);
-  but1->setText("-");
-  QToolButton *but2 = new QToolButton(wid);
-  but2->setText("100%");
-  QToolButton *but3 = new QToolButton(wid);
-  but3->setText("+");
-  lay->addWidget(new QLabel("Zoom  ", wid));
-  lay->addWidget(but1);
-  lay->addWidget(but2);
-  lay->addWidget(but3);
-  lay->setSpacing(2);
-  lay->setMargin(3);
-  wid->setLayout(lay);
-  // TODO: Make zooming better written, it looks good, impelement
-  // just webpage zoom (no text zoom for now), then move to implementing
-  // feed core.
-
-  connect(but3, SIGNAL(clicked()), m_webView, SLOT(setWebPageZoom()));
-
-  QWidgetAction *act = new QWidgetAction(this);
-  act->setDefaultWidget(wid);
-
-  browser_menu.append(act);
+  browser_menu.append(m_actionZoom);
 
   return browser_menu;
 }
@@ -193,6 +221,7 @@ void WebBrowser::setFocus(Qt::FocusReason reason) {
 }
 
 void WebBrowser::setupIcons() {
+  m_actionZoom->setIcon(IconThemeFactory::getInstance()->fromTheme("zoom-fit-best"));
   m_actionBack->setIcon(IconThemeFactory::getInstance()->fromTheme("go-previous"));
   m_actionForward->setIcon(IconThemeFactory::getInstance()->fromTheme("go-next"));
   m_actionReload->setIcon(IconThemeFactory::getInstance()->fromTheme("view-refresh"));

src/gui/webbrowser.h

@@ -9,6 +9,8 @@
 
 
 class QToolBar;
+class QToolButton;
+class QWidgetAction;
 class QVBoxLayout;
 class LocationLineEdit;
 class BaseWebView;
@@ -57,10 +59,18 @@ class WebBrowser : public TabContent {
     void navigateToUrl(const QString &url);
     void navigateToUrl(const QUrl &url);
 
+    // Zoom manipulators.
+    void increaseZoom();
+    void decreaseZoom();
+    void resetZoom();
+
   protected:
     // Creates necessary connections.
     void createConnections();
 
+    // Initializes all buttons and widgets, which are needed for "Zoom" menu item.
+    void initializeZoomWidget();
+
   protected slots:
     // Updates url (for example on location text box).
     void updateUrl(const QUrl &url);
@@ -80,7 +90,10 @@ class WebBrowser : public TabContent {
     QToolBar *m_toolBar;
     BaseWebView *m_webView;
     LocationLineEdit *m_txtLocation;
+    QWidget *m_zoomButtons;
+    QToolButton *m_btnResetZoom;
 
+    QWidgetAction *m_actionZoom;
     QAction *m_actionBack;
     QAction *m_actionForward;
     QAction *m_actionReload;