File viewport-kwininfo.diff of Package kdelibs3

--- kdecore/kwinmodule.cpp
+++ kdecore/kwinmodule.cpp
@@ -39,6 +39,7 @@
 static unsigned long windows_properties[ 2 ] = { NET::ClientList | NET::ClientListStacking |
 				     NET::NumberOfDesktops |
 				     NET::DesktopGeometry |
+                                     NET::DesktopViewport |
 				     NET::CurrentDesktop |
 				     NET::DesktopNames |
 				     NET::ActiveWindow |
@@ -49,6 +50,7 @@
 static unsigned long desktop_properties[ 2 ] = { 
 				     NET::NumberOfDesktops |
 				     NET::DesktopGeometry |
+                                     NET::DesktopViewport |
 				     NET::CurrentDesktop |
 				     NET::DesktopNames |
 				     NET::ActiveWindow |
@@ -106,8 +108,10 @@
 
     void updateStackingOrder();
     bool removeStrutWindow( WId );
-};
 
+    QSize numberOfViewports(int desktop) const;
+    QPoint currentViewport(int desktop) const;
+};
 
 KWinModule::KWinModule( QObject* parent )
     : QObject( parent, "kwin_module" )
@@ -176,6 +180,22 @@
     return d->systemTrayWindows;
 }
 
+QSize KWinModulePrivate::numberOfViewports(int desktop) const
+{
+    NETSize netdesktop = desktopGeometry(desktop);
+
+    return QSize(netdesktop.width / QApplication::desktop()->width(),
+            netdesktop.height / QApplication::desktop()->height());
+}
+
+QPoint KWinModulePrivate::currentViewport(int desktop) const
+{
+    NETPoint netviewport = desktopViewport(desktop);
+
+    return QPoint(1+(netviewport.x / QApplication::desktop()->width()),
+            1+(netviewport.y / QApplication::desktop()->height()));
+}
+
 bool KWinModulePrivate::x11Event( XEvent * ev )
 {
     if ( ev->xany.window == qt_xrootwin() ) {
@@ -192,6 +212,15 @@
 	if (( m[ PROTOCOLS ] & ActiveWindow ) && activeWindow() != old_active_window )
 	    for ( QPtrListIterator<KWinModule> mit( modules ); mit.current(); ++mit )
 		emit (*mit)->activeWindowChanged( activeWindow() );
+	if ( m[ PROTOCOLS ] & DesktopViewport ) {
+	    for ( QPtrListIterator<KWinModule> mit( modules ); mit.current(); ++mit )
+		emit (*mit)->currentDesktopViewportChanged(currentDesktop(),
+                        currentViewport(currentDesktop()));
+        }
+	if ( m[ PROTOCOLS ] & DesktopGeometry ) {
+	    for ( QPtrListIterator<KWinModule> mit( modules ); mit.current(); ++mit )
+		emit (*mit)->desktopGeometryChanged(currentDesktop());
+	}
 	if ( m[ PROTOCOLS ] & DesktopNames )
 	    for ( QPtrListIterator<KWinModule> mit( modules ); mit.current(); ++mit )
 		emit (*mit)->desktopNamesChanged();
@@ -224,7 +253,7 @@
         }
 	if ( (dirty[ NETWinInfo::PROTOCOLS ] & NET::WMStrut) != 0 ) {
             removeStrutWindow( ev->xany.window );
-            if ( !possibleStrutWindows.findIndex( ev->xany.window ) != -1  )
+            if ( possibleStrutWindows.findIndex( ev->xany.window ) == -1 )
         	possibleStrutWindows.append( ev->xany.window );
 	}
 	if ( dirty[ NETWinInfo::PROTOCOLS ] || dirty[ NETWinInfo::PROTOCOLS2 ] ) {
@@ -325,6 +354,16 @@
     return d->numberOfDesktops();
 }
 
+QSize KWinModule::numberOfViewports(int desktop) const
+{
+    return d->numberOfViewports(desktop);
+}
+
+QPoint KWinModule::currentViewport(int desktop) const
+{
+    return d->currentViewport(desktop);
+}
+
 WId KWinModule::activeWindow() const
 {
     return d->activeWindow();
--- kdecore/kwinmodule.h
+++ kdecore/kwinmodule.h
@@ -152,6 +152,21 @@
     int numberOfDesktops() const;
 
     /**
+     * Returns the number of viewports in x and y direction
+     * on the virtual desktop.
+     * @return the number of virtual desktops
+     * @since 3.5.5
+     **/
+    QSize numberOfViewports(int desktop) const;
+
+    /**
+     * Returns the current viewport on the given virtual desktop
+     * @return the number of virtual desktops
+     * @since 3.5.5
+     **/
+    QPoint currentViewport(int desktop) const;
+
+    /**
      * Returns the currently active window, or 0 if no window is active.
      * @return the window id of the active window, or 0 if no window is 
      *  active
@@ -193,7 +208,7 @@
      * @param name the new name for the desktop
      **/
     void setDesktopName( int desktop, const QString& name );
-    
+
     /**
      * Returns the state of showing the desktop.
      * @since 3.5
@@ -308,16 +323,28 @@
      * @param id the id of the window
      */
     void windowChanged(WId id);
-    
+
     /**
      * The state of showing the desktop has changed.
      * @since 3.5
      */
     void showingDesktopChanged( bool showing );
 
+    /**
+     * The state of showing the desktop has changed.
+     * @since 3.5.5
+     */
+    void desktopGeometryChanged(int desktop);
+
+    /**
+     * The viewport position has changed
+     * @since 3.5
+     */
+    void currentDesktopViewportChanged(int desktop, const QPoint& viewport);
+
 protected:
     virtual void connectNotify( const char* signal );
-        
+
 private:
     void init(int);
 
--- kdecore/kwin.cpp
+++ kdecore/kwin.cpp
@@ -656,6 +656,16 @@
 #endif
 }
 
+void KWin::setCurrentDesktopViewport( int desktop, QPoint viewport )
+{
+#ifdef Q_WS_X11
+    NETRootInfo info( qt_xdisplay(), NET::CurrentDesktop );
+    NETPoint netview;
+    netview.x = viewport.x();
+    netview.y = viewport.y();
+    info.setDesktopViewport( desktop, netview );
+#endif
+}
 
 void KWin::iconifyWindow( WId win, bool animation)
 {
--- kdecore/kwin.h
+++ kdecore/kwin.h
@@ -391,6 +391,14 @@
     static void setCurrentDesktop( int desktop );
 
     /**
+     * Convenience function to set the current viewport to @p viewport.
+     * See NETRootInfo.
+     * @param desktop the number of the new desktop
+     * @param desktop the number of the new viewport
+     */
+    static void setCurrentDesktopViewport( int desktop, QPoint viewport );
+
+    /**
      * Iconifies a window. Compatible to XIconifyWindow but has an
      * additional parameter @p animation.
      *