Use grabWindow to obtain screenshot of embedded rdesktop window

BUG:205992


svn path=/trunk/KDE/kdenetwork/krdc/; revision=1171604

core/remoteview.cpp

@@ -157,6 +157,11 @@ void RemoteView::setGrabAllKeys(bool grabAllKeys)
     }
 }
 
+QPixmap RemoteView::takeScreenshot() 
+{
+    return QPixmap::grabWidget(this);
+}
+
 void RemoteView::showDotCursor(DotCursorState state)
 {
     m_dotCursorState = state;

core/remoteview.h

@@ -244,6 +244,11 @@ public:
      */
     virtual void updateConfiguration();
     
+    /**
+     * @return screenshot of the view
+     */
+    virtual QPixmap takeScreenshot();
+    
 #ifndef QTONLY
     /**
      * Returns the current host preferences of this view.

mainwindow.cpp

@@ -461,7 +461,7 @@ void MainWindow::statusChanged(RemoteView::RemoteStatus status)
 
 void MainWindow::takeScreenshot()
 {
-    const QPixmap snapshot = QPixmap::grabWidget(m_remoteViewList.at(m_currentRemoteView));
+    const QPixmap snapshot = m_remoteViewList.at(m_currentRemoteView)->takeScreenshot();
 
     QApplication::clipboard()->setPixmap(snapshot);
 }

rdp/rdpview.cpp

@@ -232,6 +232,11 @@ void RdpView::connectionOpened()
     setFocus();
 }
 
+QPixmap RdpView::takeScreenshot()
+{
+    return QPixmap::grabWindow(m_container->clientWinId());
+}
+
 void RdpView::connectionClosed()
 {
     emit disconnected();

rdp/rdpview.h

@@ -63,6 +63,8 @@ public:
     void setGrabAllKeys(bool grabAllKeys);
     
     HostPreferences* hostPreferences();
+    
+    virtual QPixmap takeScreenshot();
 
 public slots:
     virtual void switchFullscreen(bool on);