Allow VNC top level widgits to be hidden

via QGraphicsSystemScreen::setVisible()

3 files changed, 14 insertions, 2 deletions

diff --git a/src/plugins/graphicssystems/vnc/qgraphicssystem_vnc.cpp b/src/plugins/graphicssystems/vnc/qgraphicssystem_vnc.cpp
index b50e5b5..52f354a 100644
--- a/src/plugins/graphicssystems/vnc/qgraphicssystem_vnc.cpp
+++ b/src/plugins/graphicssystems/vnc/qgraphicssystem_vnc.cpp
@@ -87,10 +87,14 @@ void QVNCGraphicsSystemScreen::setDirty(const QRect &rect)
     compositePainter.fillRect(rect, Qt::black);
 
     for (int i = 0; i < windowStack.length(); i++) {
+        if (!windowStack[i]->visible())
+            continue;
         QRect windowRect = windowStack[i]->geometry();
         QRect intersect = windowRect.intersected(rect);
         QRect windowIntersect = intersect.translated(-windowRect.left(),
                                                      -windowRect.top());
+        if (intersect.isNull())
+            continue;
         compositePainter.drawImage(intersect, windowStack[i]->image(),
                                    windowIntersect);
     }
diff --git a/src/plugins/graphicssystems/vnc/qwindowsurface_vnc.cpp b/src/plugins/graphicssystems/vnc/qwindowsurface_vnc.cpp
index af171f5..a3bce49 100644
--- a/src/plugins/graphicssystems/vnc/qwindowsurface_vnc.cpp
+++ b/src/plugins/graphicssystems/vnc/qwindowsurface_vnc.cpp
@@ -51,7 +51,8 @@ QT_BEGIN_NAMESPACE
 QVNCWindowSurface::QVNCWindowSurface(QVNCGraphicsSystem *graphicsSystem,
                                      QVNCGraphicsSystemScreen *screen, QWidget *window)
     : QWindowSurface(window),
-      mScreen(screen)
+      mScreen(screen),
+      visibleFlag(false)
 {
     mImage = QImage(window->size(), mScreen->format());
 }
@@ -115,4 +116,9 @@ void QVNCWindowSurface::endPaint(const QRegion &region)
     Q_UNUSED(region);
 }
 
+void QVNCWindowSurface::setVisible(bool visible)
+{
+    visibleFlag = visible;
+    mScreen->setDirty(geometry());
+}
 QT_END_NAMESPACE
diff --git a/src/plugins/graphicssystems/vnc/qwindowsurface_vnc.h b/src/plugins/graphicssystems/vnc/qwindowsurface_vnc.h
index b9af493..477fe1b 100644
--- a/src/plugins/graphicssystems/vnc/qwindowsurface_vnc.h
+++ b/src/plugins/graphicssystems/vnc/qwindowsurface_vnc.h
@@ -65,12 +65,14 @@ public:
     void beginPaint(const QRegion &region);
     void endPaint(const QRegion &region);
     inline const QImage image() { return mImage; }
-
+    void setVisible(bool visible);
+    bool visible() { return visibleFlag; }
 private:
     QVNCGraphicsSystem *mGraphicsSystem;
     QVNCGraphicsSystemScreen *mScreen;
     QRect oldGeometry;
     QImage mImage;
+    bool visibleFlag;
 };
 
 QT_END_NAMESPACE