MainWindow tracks model status.

glabels/LabelModel.cpp

@@ -65,6 +65,16 @@ namespace glabels
 	}
 
 
+	///
+	/// Clear modified status
+	///
+	void LabelModel::clearModified()
+	{
+		mModified = false;
+		emit modifiedChanged();
+	}
+
+
 	///
 	/// Add object.
 	///
@@ -80,6 +90,7 @@ namespace glabels
 
 		emit objectAdded( object );
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -92,6 +103,7 @@ namespace glabels
 
 		emit objectChanged( qobject_cast<LabelModelObject*>(sender()) );
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -104,6 +116,7 @@ namespace glabels
 
 		emit objectMoved( qobject_cast<LabelModelObject*>(sender()) );
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -121,6 +134,7 @@ namespace glabels
 
 		emit objectDeleted( object );
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -361,6 +375,7 @@ namespace glabels
 
 		emit changed();
 		emit selectionChanged();
+		emit modifiedChanged();
 	}
 
 
@@ -386,6 +401,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -411,6 +427,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -430,6 +447,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -467,6 +485,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -486,6 +505,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -520,6 +540,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -554,6 +575,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -605,6 +627,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -639,6 +662,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -673,6 +697,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -724,6 +749,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -748,6 +774,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -772,6 +799,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -791,6 +819,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -810,6 +839,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -829,6 +859,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -848,6 +879,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -867,6 +899,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -886,6 +919,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -905,6 +939,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -924,6 +959,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -943,6 +979,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -962,6 +999,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -981,6 +1019,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 
@@ -1000,6 +1039,7 @@ namespace glabels
 		mModified = true;
 
 		emit changed();
+		emit modifiedChanged();
 	}
 
 }

glabels/LabelModel.h

@@ -61,6 +61,7 @@ namespace glabels
 		void nameChanged();
 		void sizeChanged();
 		void selectionChanged();
+		void modifiedChanged();
 		void objectChanged( LabelModelObject* object );
 		void objectMoved( LabelModelObject* object );
 		void objectAdded( LabelModelObject* object );
@@ -74,7 +75,7 @@ namespace glabels
 		/////////////////////////////////
 	public:
 		inline bool isModified() const;
-		inline void clearModified();
+		void clearModified();
 
 		QString shortName();
 		inline const QString& filename() const;
@@ -205,12 +206,6 @@ namespace glabels
 	}
 
 
-	inline void LabelModel::clearModified()
-	{
-		mModified = false;
-	}
-
-
 	inline const QString& LabelModel::filename() const
 	{
 		return mFilename;

glabels/MainWindow.cpp

@@ -65,6 +65,7 @@ namespace glabels
 
 		setDocVerbsEnabled( false );
 		setPasteVerbsEnabled( false );
+		setTitle();
 
 		readSettings();
 
@@ -99,6 +100,12 @@ namespace glabels
 		mView->setModel( mModel );
 
 		setDocVerbsEnabled( true );
+		setTitle();
+
+		connect( mModel, SIGNAL(nameChanged()), this, SLOT(onNameChanged()) );
+		connect( mModel, SIGNAL(modifiedChanged()), this, SLOT(onModifiedChanged()) );
+		connect( mModel, SIGNAL(selectionChanged()), this, SLOT(onSelectionChanged()) );
+		connect( mModel, SIGNAL(changed()), this, SLOT(onLabelChanged()) );
 	}
 
 
@@ -563,12 +570,13 @@ namespace glabels
 		statusBar()->addWidget( zoomInfoLabel );
 		statusBar()->addWidget( cursorInfoLabel, 1 );
 
-		updateZoomInfo();
-		updateCursorInfo();
+		onZoomChanged();
+		onPointerExit();
 
-		connect( mView, SIGNAL(zoomChanged()), this, SLOT(updateZoomInfo()) );
-		connect( mView, SIGNAL(pointerMoved(double, double)), this, SLOT(updateCursorInfo(double, double)) );
-		connect( mView, SIGNAL(pointerExited()), this, SLOT(updateCursorInfo()) );
+		connect( mView, SIGNAL(zoomChanged()), this, SLOT(onZoomChanged()) );
+		connect( mView, SIGNAL(pointerMoved(double, double)),
+			 this, SLOT(onPointerMoved(double, double)) );
+		connect( mView, SIGNAL(pointerExited()), this, SLOT(onPointerExit()) );
 	}
 
 
@@ -682,6 +690,30 @@ namespace glabels
 	}
 
 
+	///
+	/// Set window title
+	///
+	void MainWindow::setTitle()
+	{
+		if ( mModel == 0 )
+		{
+			setWindowTitle( "gLabels" );
+		}
+		else
+		{
+			if ( mModel->isModified() )
+			{
+				setWindowTitle( mModel->shortName() + " " + tr("(modified)")
+						+ " - gLabels" );
+			}
+			else
+			{
+				setWindowTitle( mModel->shortName() + " - gLabels" );
+			}
+		}
+	}
+
+
 	///
 	/// Read MainWindow Settings
 	///
@@ -1201,9 +1233,9 @@ namespace glabels
 
 
 	///
-	/// Update Zoom Information in Status Bar
+	/// Zoom changed: update Zoom Information in Status Bar
 	///
-	void MainWindow::updateZoomInfo()
+	void MainWindow::onZoomChanged()
 	{
 		zoomInfoLabel->setText( QString( " %1% " ).arg(100*mView->zoom(), 0, 'f', 0) );
 
@@ -1213,9 +1245,9 @@ namespace glabels
 
 
 	///
-	/// Update Cursor Information in Status Bar
+	/// Pointer moved: update Cursor Information in Status Bar
 	///
-	void MainWindow::updateCursorInfo( double x, double y )
+	void MainWindow::onPointerMoved( double x, double y )
 	{
 		/* TODO: convert x,y to locale units and set precision accordingly. */
 		cursorInfoLabel->setText( QString( "%1, %2" ).arg(x).arg(y) );
@@ -1223,14 +1255,51 @@ namespace glabels
 
 
 	///
-	/// Update Zoom Information in Status Bar (Clears information)
-	/// E.g. when pointer exits view.
+	/// Pointer exited view: update Zoom Information in Status Bar (Clears information)
 	///
-	void MainWindow::updateCursorInfo()
+	void MainWindow::onPointerExit()
 	{
 		cursorInfoLabel->setText( "" );
 	}
 
 
+	///
+	/// Name changed handler
+	///
+	void MainWindow::onNameChanged()
+	{
+		setTitle();
+	}
+
+
+	///
+	/// Modified changed handler
+	///
+	void MainWindow::onModifiedChanged()
+	{
+		setTitle();
+		setDocModifiedVerbsEnabled( mModel->isModified() );
+	}
+
+
+	///
+	/// Selection changed handler
+	///
+	void MainWindow::onSelectionChanged()
+	{
+		setSelectionVerbsEnabled( !mModel->isSelectionEmpty() );
+		setMultiSelectionVerbsEnabled( !mModel->isSelectionAtomic() );
+	}
+
+
+	///
+	/// Label changed handler
+	///
+	void MainWindow::onLabelChanged()
+	{
+		/* @TODO: update undo/redo verbs. */
+	}
+
+
 }
 

glabels/MainWindow.h

@@ -133,9 +133,14 @@ namespace glabels
 		void helpContents();
 		void helpAbout();
 
-		void updateZoomInfo();
-		void updateCursorInfo();
-		void updateCursorInfo( double, double );
+		void onZoomChanged();
+		void onPointerMoved( double, double );
+		void onPointerExit();
+
+		void onNameChanged();
+		void onModifiedChanged();
+		void onSelectionChanged();
+		void onLabelChanged();
 
 
 		/////////////////////////////////////
@@ -153,6 +158,8 @@ namespace glabels
 		void setSelectionVerbsEnabled( bool );
 		void setMultiSelectionVerbsEnabled( bool );
 
+		void setTitle();
+
 		void readSettings();
 		void writeSettings();