1 files changed, 131 insertions, 0 deletions
diff --git a/src/plugins/graphicssystems/openvglite/qwindowsurface_vglite.cpp b/src/plugins/graphicssystems/openvglite/qwindowsurface_vglite.cpp
new file mode 100644
index 0000000..d250a8e
--- /dev/null
+++ b/src/plugins/graphicssystems/openvglite/qwindowsurface_vglite.cpp
@@ -0,0 +1,131 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtOpenVG module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights.  These rights are described in the Nokia Qt LGPL
+** Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwindowsurface_vglite.h"
+#include "qgraphicssystem_vglite.h"
+#include <QtOpenVG/qvg.h>
+#include <QtOpenVG/private/qvg_p.h>
+#include <QtOpenVG/private/qpaintengine_vg_p.h>
+
+QT_BEGIN_NAMESPACE
+
+QVGLiteWindowSurface::QVGLiteWindowSurface
+        (QVGLiteGraphicsSystem *gs, QWidget *window)
+    : QWindowSurface(window), graphicsSystem(gs),
+      isPaintingActive(false), engine(0)
+{
+}
+
+QVGLiteWindowSurface::~QVGLiteWindowSurface()
+{
+    graphicsSystem->surface = 0;
+    if (engine)
+        qt_vg_destroy_paint_engine(engine);
+}
+
+QPaintDevice *QVGLiteWindowSurface::paintDevice()
+{
+    qt_vg_make_current(graphicsSystem->context, graphicsSystem->rootWindow);
+    isPaintingActive = true;
+    // TODO: clear the parts of the back buffer that are not
+    // covered by the window surface to black.
+    return this;
+}
+
+void QVGLiteWindowSurface::flush(QWidget *widget, const QRegion &region, const QPoint &offset)
+{
+    Q_UNUSED(widget);
+    Q_UNUSED(region);
+    Q_UNUSED(offset);
+    QEglContext *context = graphicsSystem->context;
+    if (context) {
+        if (!isPaintingActive)
+            qt_vg_make_current(context, graphicsSystem->rootWindow);
+        context->swapBuffers();
+        qt_vg_done_current(context);
+        context->setSurface(EGL_NO_SURFACE);
+        isPaintingActive = false;
+    }
+}
+
+void QVGLiteWindowSurface::setGeometry(const QRect &rect)
+{
+    QWindowSurface::setGeometry(rect);
+}
+
+bool QVGLiteWindowSurface::scroll(const QRegion &area, int dx, int dy)
+{
+    return QWindowSurface::scroll(area, dx, dy);
+}
+
+void QVGLiteWindowSurface::beginPaint(const QRegion &region)
+{
+    Q_UNUSED(region);
+}
+
+void QVGLiteWindowSurface::endPaint(const QRegion &region)
+{
+    Q_UNUSED(region);
+}
+
+QPaintEngine *QVGLiteWindowSurface::paintEngine() const
+{
+    if (!engine)
+        engine = qt_vg_create_paint_engine();
+    return engine;
+}
+
+// We need to get access to QWidget::metric() from QVGLiteWindowSurface::metric,
+// but it is not a friend of QWidget.  To get around this, we create a
+// fake QX11PaintEngine class, which is a friend.
+class QX11PaintEngine
+{
+public:
+    static int metric(const QWidget *widget, QPaintDevice::PaintDeviceMetric met)
+    {
+        return widget->metric(met);
+    }
+};
+
+int QVGLiteWindowSurface::metric(PaintDeviceMetric met) const
+{
+    return QX11PaintEngine::metric(window(), met);
+}