ui: renamed undo&redo to back&forward, control back&forward via mouse and backspace

* the key codes for mouse back and forward buttons can be defined in the ApplicationSettings
* fixed only left mouse button allowed for graph interactions

bin/app/data/ApplicationSettings_template.xml

@@ -49,4 +49,9 @@
 		<plugin_port><!-- INTEGER: port the plugin listens to, standard is 6666 --></plugin_port>
 		<coati_port><!-- INTEGER: port coati is listening to, standard is 6667 --></coati_port>
 	</network>
+
+	<controls>
+		<mouse_back_button><!-- INTEGER: mouse button code of back button, default is 8 --></mouse_back_button>
+		<mouse_forward_button><!-- INTEGER: mouse button code of forward button, default is 16 --></mouse_forward_button>
+	</controls>
 </config>

src/lib/settings/ApplicationSettings.cpp

@@ -150,3 +150,13 @@ void ApplicationSettings::setCoatiPort(const int coatiPort)
 {
 	setValue<int>("network/coati_port", coatiPort);
 }
+
+int ApplicationSettings::getControlsMouseBackButton() const
+{
+	return getValue<int>("controls/mouse_back_button", 0x8);
+}
+
+int ApplicationSettings::getControlsMouseForwardButton() const
+{
+	return getValue<int>("controls/mouse_forward_button", 0x16);
+}

src/lib/settings/ApplicationSettings.h

@@ -59,6 +59,10 @@ public:
 	int getCoatiPort() const;
 	void setCoatiPort(const int coatiPort);
 
+	// controls
+	int getControlsMouseBackButton() const;
+	int getControlsMouseForwardButton() const;
+
 private:
 	ApplicationSettings();
 	ApplicationSettings(const ApplicationSettings&);

src/lib_gui/qt/element/QtUndoRedo.cpp

@@ -16,13 +16,13 @@ QtUndoRedo::QtUndoRedo()
 
 	m_undoButton = new QPushButton(this);
 	m_undoButton->setObjectName("undo_button");
-	m_undoButton->setToolTip("undo");
+	m_undoButton->setToolTip("back");
 	m_undoButton->setAttribute(Qt::WA_LayoutUsesWidgetRect); // fixes layouting on Mac
 	m_undoButton->setEnabled(false);
 
 	m_redoButton = new QPushButton(this);
 	m_redoButton->setObjectName("redo_button");
-	m_redoButton->setToolTip("redo");
+	m_redoButton->setToolTip("forward");
 	m_redoButton->setAttribute(Qt::WA_LayoutUsesWidgetRect); // fixes layouting on Mac
     m_redoButton->setEnabled(false);
 

src/lib_gui/qt/view/graphElements/QtGraphNode.cpp

@@ -265,6 +265,11 @@ void QtGraphNode::mousePressEvent(QGraphicsSceneMouseEvent* event)
 {
 	event->ignore();
 
+	if (event->button() != Qt::LeftButton)
+	{
+		return;
+	}
+
 	for (std::shared_ptr<QtGraphNodeComponent> component : m_components)
 	{
 		component->nodeMousePressEvent(event);
@@ -303,6 +308,11 @@ void QtGraphNode::mouseReleaseEvent(QGraphicsSceneMouseEvent* event)
 {
 	event->ignore();
 
+	if (event->button() != Qt::LeftButton)
+	{
+		return;
+	}
+
 	for (std::shared_ptr<QtGraphNodeComponent> component : m_components)
 	{
 		component->nodeMouseReleaseEvent(event);

src/lib_gui/qt/window/QtMainWindow.cpp

@@ -45,6 +45,39 @@ void QtViewToggle::toggledByUI()
 	dynamic_cast<QtMainWindow*>(parent())->toggleView(m_view, false);
 }
 
+
+MouseReleaseFilter::MouseReleaseFilter(QObject* parent)
+	: QObject(parent)
+{
+	m_backButton = ApplicationSettings::getInstance()->getControlsMouseBackButton();
+	m_forwardButton = ApplicationSettings::getInstance()->getControlsMouseForwardButton();
+
+	std::cout << m_backButton << std::endl;
+	std::cout << m_forwardButton << std::endl;
+}
+
+bool MouseReleaseFilter::eventFilter(QObject* obj, QEvent* event)
+{
+	if (event->type() == QEvent::MouseButtonRelease)
+	{
+		QMouseEvent* mouseEvent = dynamic_cast<QMouseEvent*>(event);
+
+		if (mouseEvent->button() == m_backButton)
+		{
+			MessageUndo().dispatch();
+			return true;
+		}
+		else if (mouseEvent->button() == m_forwardButton)
+		{
+			MessageRedo().dispatch();
+			return true;
+		}
+	}
+
+	return QObject::eventFilter(obj, event);
+}
+
+
 QtMainWindow::QtMainWindow()
 {
 	setObjectName("QtMainWindow");
@@ -56,6 +89,9 @@ QtMainWindow::QtMainWindow()
 
 	QApplication::setOverrideCursor(Qt::ArrowCursor);
 
+	QApplication* app = dynamic_cast<QApplication*>(QCoreApplication::instance());
+	app->installEventFilter(new MouseReleaseFilter(this));
+
 	m_recentProjectAction = new QAction*[ApplicationSettings::MaximalAmountOfRecentProjects];
 
 	setupProjectMenu();
@@ -179,6 +215,14 @@ bool QtMainWindow::event(QEvent* event)
 	return QMainWindow::event(event);
 }
 
+void QtMainWindow::keyPressEvent(QKeyEvent* event)
+{
+	if (event->key() == Qt::Key_Backspace)
+	{
+		MessageUndo().dispatch();
+	}
+}
+
 void QtMainWindow::pushWindow(QWidget* window)
 {
 	if (m_windowStack.size())
@@ -480,8 +524,8 @@ void QtMainWindow::setupEditMenu()
 	QMenu *menu = new QMenu(tr("&Edit"), this);
 	menuBar()->addMenu(menu);
 
-	menu->addAction(tr("Undo"), this, SLOT(undo()), QKeySequence::Undo);
+	menu->addAction(tr("Back"), this, SLOT(undo()), QKeySequence::Undo);
-	menu->addAction(tr("Redo"), this, SLOT(redo()), QKeySequence::Redo);
+	menu->addAction(tr("Forward"), this, SLOT(redo()), QKeySequence::Redo);
 
 	menu->addSeparator();
 	if(!isTrial())

src/lib_gui/qt/window/QtMainWindow.h

@@ -33,7 +33,26 @@ private:
 	View* m_view;
 };
 
-class QtMainWindow: public QMainWindow
+
+class MouseReleaseFilter
+	: public QObject
+{
+	Q_OBJECT
+
+public:
+	MouseReleaseFilter(QObject* parent);
+
+protected:
+	bool eventFilter(QObject* obj, QEvent* event);
+
+private:
+	size_t m_backButton;
+	size_t m_forwardButton;
+};
+
+
+class QtMainWindow
+	: public QMainWindow
 {
 	Q_OBJECT
 
@@ -54,6 +73,7 @@ public:
 
 protected:
 	bool event(QEvent* event);
+	void keyPressEvent(QKeyEvent* event);
 
 public slots:
 	void pushWindow(QWidget* window);
@@ -88,6 +108,7 @@ public slots:
 	void toggleView(View* view, bool fromMenu);
 
 	void handleEscapeShortcut();
+
 	void updateRecentProjectMenu();
 
 	static void setWindowSettingsPath(const std::string& windowSettingsPath);