fix refresh issues

[presencevnc] / src / mainwindow.cpp

diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 7940a25..ddc67ac 100644 (file)
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -69,6 +69,8 @@ MainWindow::MainWindow(QString url, int quality):
        zoom_slider->setRange(0, 100);
        connect(zoom_slider, SIGNAL(valueChanged(int)),
                this, SLOT(setZoomLevel(int)));
+       connect(zoom_slider, SIGNAL(sliderReleased()),
+               this, SLOT(forceRepaint()));
        zoom_slider->setValue(settings.value("zoomlevel", 95).toInt());
        toolbar->addWidget(zoom_slider);
 
@@ -266,7 +268,13 @@ void MainWindow::statusChanged(RemoteView::RemoteStatus status)
        old_status = status;
 }
 
-//resizes the widget to use available screen space
+void MainWindow::forceRepaint()
+{
+       if(vnc_view)
+               vnc_view->forceFullRepaint();
+}
+
+//updates available screen space for current zoom level
 //necessary when rotating, showing fullscreen, etc.
 void MainWindow::forceResize()
 {
@@ -362,9 +370,12 @@ void MainWindow::setZoomLevel(int level)
        vnc_view->setZoomLevel(level);
 
        int new_width = vnc_view->width();
-       center = center * (double(new_width)/old_width);
 
-       //scroll to center
-       scroll_area->ensureVisible(center.x(), center.y(),
-               scroll_area->width()/2, scroll_area->height()/2);
+       //scroll to center, if zoom level actually changed
+       if(new_width != old_width) {
+               center = center * (double(new_width)/old_width);
+               scroll_area->ensureVisible(center.x(), center.y(),
+                       scroll_area->width()/2, scroll_area->height()/2);
+               vnc_view->update();
+       }
 }