void RenderView::paintBoxDecorations(PaintInfo& paintInfo, int tx, int ty)
{
// Check to see if we are enclosed by a transparent layer. If so, we cannot blit
// when scrolling, and we need to use slow repaints.
Element* elt;
for (elt = document()->ownerElement(); view() && elt && elt->renderer(); elt = elt->document()->ownerElement()) {
RenderLayer* layer = elt->renderer()->enclosingLayer();
if (layer->isTransparent() || layer->transparentAncestor()) {
frameView()->setUseSlowRepaints();
break;
}
}
if (elt || (firstChild() && firstChild()->style()->visibility() == VISIBLE) || !view())
return;
// This code typically only executes if the root element's visibility has been set to hidden.
// Only fill with the base background color (typically white) if we're the root document,
// since iframes/frames with no background in the child document should show the parent's background.
if (view()->isTransparent())
frameView()->setUseSlowRepaints(); // The parent must show behind the child.
else {
Color baseColor = frameView()->baseBackgroundColor();
if (baseColor.alpha() > 0) {
paintInfo.context->save();
paintInfo.context->setCompositeOperation(CompositeCopy);
paintInfo.context->fillRect(paintInfo.rect, baseColor);
paintInfo.context->restore();
} else
paintInfo.context->clearRect(paintInfo.rect);
}
}
void RenderView::paintBoxDecorations(PaintInfo& i, int _tx, int _ty)
{
// Check to see if we are enclosed by a transparent layer. If so, we cannot blit
// when scrolling, and we need to use slow repaints.
Element* elt = element()->document()->ownerElement();
if (view() && elt) {
RenderLayer* layer = elt->renderer()->enclosingLayer();
if (layer->isTransparent() || layer->transparentAncestor())
frameView()->useSlowRepaints();
}
if ((firstChild() && firstChild()->style()->visibility() == VISIBLE) || !view())
return;
// This code typically only executes if the root element's visibility has been set to hidden.
// Only fill with white if we're the root document, since iframes/frames with
// no background in the child document should show the parent's background.
if (elt || view()->isTransparent())
frameView()->useSlowRepaints(); // The parent must show behind the child.
else
i.p->fillRect(i.r, Color(Color::white));
}
