set title bar and title toggle view action

Author: voki-andreev-a

src/DockWidget.cpp

@@ -62,11 +62,11 @@ struct DockWidgetPrivate
 	CDockWidget* _this;
 	QBoxLayout* Layout;
 	QWidget* Widget = nullptr;
-	CDockWidgetTab* TabWidget;
+	CDockWidgetTab* TabWidget = nullptr;
 	CDockWidget::DockWidgetFeatures Features = CDockWidget::AllDockWidgetFeatures;
 	CDockManager* DockManager = nullptr;
 	CDockAreaWidget* DockArea = nullptr;
-	QAction* ToggleViewAction;
+	QAction* ToggleViewAction = nullptr;
 	bool Closed = false;
 	QScrollArea* ScrollArea = nullptr;
 	QToolBar* ToolBar = nullptr;
@@ -497,7 +497,16 @@ bool CDockWidget::event(QEvent *e)
 {
 	if (e->type() == QEvent::WindowTitleChange)
 	{
-		emit titleChanged(windowTitle());
+		const auto title = windowTitle();
+		if (d->TabWidget)
+		{
+			d->TabWidget->setText(title);
+		}
+		if (d->ToggleViewAction)
+		{
+			d->ToggleViewAction->setText(title);
+		}
+		emit titleChanged(title);
 	}
 	return QFrame::event(e);
 }

src/DockWidgetTab.cpp

@@ -466,6 +466,14 @@ void CDockWidgetTab::setVisible(bool visible)
 }
 
 
+//============================================================================
+void CDockWidgetTab::setText(const QString& title)
+{
+	d->TitleLabel->setText(title);
+}
+
+
+
 //============================================================================
 bool CDockWidgetTab::isClosable() const
 {

src/DockWidgetTab.h

@@ -125,13 +125,20 @@ private slots:
 	 */
 	QString text() const;
 
+
+	/**
+	 * Sets the tab text
+	 */
+	void setText(const QString& title);
+
 	/**
 	 * This function returns true if the assigned dock widget is closeable
 	 */
 	bool isClosable() const;
 
 public slots:
 	virtual void setVisible(bool visible);
+	
 
 signals:
 	void activeTabChanged();