Refactor QQnxWindow

This patch does following things:
* Remove the root window: First window which is created will serve as a root window
* Allow creation of more than one application window (with every app window having
  an own window group) on one screen
* Fixes a bug when reparanting an EGL window

Change-Id: I1afd64a813bc084c0893b958aa191d4a25c32b9d
Reviewed-by: Matt Hoosier <matt.hoosier@garmin.com>
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/src/plugins/platforms/qnx/qqnxrasterwindow.h b/src/plugins/platforms/qnx/qqnxrasterwindow.h
index 8bd42bc320..ad34b3ccf2 100644
--- a/src/plugins/platforms/qnx/qqnxrasterwindow.h
+++ b/src/plugins/platforms/qnx/qqnxrasterwindow.h
@@ -50,7 +50,7 @@ QT_BEGIN_NAMESPACE
 class QQnxRasterWindow : public QQnxWindow
 {
 public:
-    QQnxRasterWindow(QWindow *window, screen_context_t context);
+    QQnxRasterWindow(QWindow *window, screen_context_t context, bool needRootWindow);
 
     void post(const QRegion &dirty);
 
@@ -60,7 +60,7 @@ public:
 
     bool hasBuffers() const { return !bufferSize().isEmpty(); }
 
-    WindowType windowType() const Q_DECL_OVERRIDE { return Raster; }
+    void adjustBufferSize();
 
 protected:
     int pixelFormat() const;
@@ -69,6 +69,9 @@ protected:
     // Copies content from the previous buffer (back buffer) to the current buffer (front buffer)
     void blitPreviousToCurrent(const QRegion &region, int dx, int dy, bool flush=false);
 
+    void blitHelper(QQnxBuffer &source, QQnxBuffer &target, const QPoint &sourceOffset,
+                    const QPoint &targetOffset, const QRegion &region, bool flush = false);
+
 private:
     QRegion m_previousDirty;
     QRegion m_scrolled;