bool hasAlphaChannel(const QWidget *widget)
{
#ifdef Q_WS_X11
if(compositingActive())
return 32 == (widget ? widget->x11Info().depth() : QX11Info().appDepth()) ;
else
return false;
#else
return compositingActive();
#endif
}
void AuroraeClient::init()
{
m_scene->setItemIndexMethod(QGraphicsScene::NoIndex);
// HACK: we need to add the GraphicsView as a child widget to a normal widget
// the GraphicsView eats the mouse release event and by that kwin core starts to move
// the decoration each time the decoration is clicked
// therefore we use two widgets and inject an own mouse release event to the parent widget
// when the graphics view eats a mouse event
createMainWidget();
widget()->setAttribute(Qt::WA_TranslucentBackground);
widget()->setAttribute(Qt::WA_NoSystemBackground);
m_view = new QGraphicsView(m_scene, widget());
m_view->setAttribute(Qt::WA_TranslucentBackground);
m_view->setWindowFlags(Qt::X11BypassWindowManagerHint);
m_view->setFrameShape(QFrame::NoFrame);
m_view->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
m_view->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
m_view->setOptimizationFlags(QGraphicsView::DontSavePainterState);
m_view->setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
QPalette pal = m_view->palette();
pal.setColor(m_view->backgroundRole(), Qt::transparent);
m_view->setPalette(pal);
QPalette pal2 = widget()->palette();
pal2.setColor(widget()->backgroundRole(), Qt::transparent);
widget()->setPalette(pal2);
m_scene->addItem(m_item);
AuroraeFactory::instance()->theme()->setCompositingActive(compositingActive());
connect(AuroraeFactory::instance()->theme(), SIGNAL(themeChanged()), SLOT(themeChanged()));
}
bool hasAlphaChannel(const QWidget *widget)
{
#ifdef QTC_ENABLE_X11
QWidget *window;
if (!(widget && (window = widget->window())))
return false;
if (WId wid = qtcGetQWidgetWid(window)) {
return qtcX11HasAlpha(wid);
}
return window->testAttribute(Qt::WA_TranslucentBackground);
#else
Q_UNUSED(widget);
return compositingActive();
#endif
}