void WidgetRenderer::paintEvent(QPaintEvent *)
{
DPTR_D(WidgetRenderer);
d.painter->begin(this); //Widget painting can only begin as a result of a paintEvent
handlePaintEvent();
if (d.painter->isActive())
d.painter->end();
}
void GLWidgetRenderer::paintGL()
{
DPTR_D(GLWidgetRenderer);
/* we can mix gl and qpainter.
* QPainter painter(this);
* painter.beginNativePainting();
* gl functions...
* painter.endNativePainting();
* swapBuffers();
*/
handlePaintEvent();
swapBuffers();
if (d.painter && d.painter->isActive())
d.painter->end();
}
void OpenGLRendererBase::onPaintGL()
{
DPTR_D(OpenGLRendererBase);
/* we can mix gl and qpainter.
* QPainter painter(this);
* painter.beginNativePainting();
* gl functions...
* painter.endNativePainting();
* swapBuffers();
*/
handlePaintEvent();
//context()->swapBuffers(this);
if (d.painter && d.painter->isActive())
d.painter->end();
}
void GraphicsItemRenderer::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
Q_UNUSED(option);
Q_UNUSED(widget);
DPTR_D(GraphicsItemRenderer);
d.painter = painter;
QPainterFilterContext *ctx = static_cast<QPainterFilterContext*>(d.filter_context);
if (ctx) {
ctx->painter = d.painter;
} else {
qWarning("FilterContext not available!");
}
handlePaintEvent();
d.painter = 0; //painter may be not available outside this function
ctx->painter = 0;
}
void Direct2DRenderer::paintEvent(QPaintEvent *)
{
DPTR_D(Direct2DRenderer);
if (!d.render_target) {
qWarning("No render target!!!");
return;
}
//http://www.daimakuai.net/?page_id=1574
d.render_target->BeginDraw();
handlePaintEvent();
HRESULT hr = S_OK;
{
//if d2d factory is D2D1_FACTORY_TYPE_SINGLE_THREADED, we need to lock
//QMutexLocker locker(&d.img_mutex);
//Q_UNUSED(locker);
hr = d.render_target->EndDraw(NULL, NULL); //TODO: why it need lock? otherwise crash
}
if (hr == D2DERR_RECREATE_TARGET) {
d.recreateDeviceResource();
}
}
QSGNode *QQuickItemRenderer::updatePaintNode(QSGNode *node, QQuickItem::UpdatePaintNodeData *data)
{
Q_UNUSED(data);
DPTR_D(QQuickItemRenderer);
if (d.frame_changed) {
if (!node) {
if (isOpenGL()) {
node = new SGVideoNode();
} else {
node = new QSGSimpleTextureNode();
}
}
}
if (!node) {
d.frame_changed = false;
return 0;
}
d.node = node;
handlePaintEvent();
d.node = 0;
return node;
}
void GLWidgetRenderer::paintGL()
{
//drawBackground(); //TODO: why this is always required? otherwise may flicker when aspect ratio changed(ubuntu 12.10)
d_func().setupQuality();
handlePaintEvent();
}
void QuickFBORenderer::renderToFbo()
{
handlePaintEvent();
}
void XVRenderer::paintEvent(QPaintEvent *)
{
handlePaintEvent();
}
