void TiledDrawingAreaProxy::paint(const IntRect& rect, PlatformDrawingContext context)
{
if (m_isWaitingForDidSetFrameNotification) {
WebPageProxy* page = this->page();
if (!page->isValid())
return;
if (page->process()->isLaunching())
return;
}
adjustVisibleRect();
GraphicsContext gc(context);
gc.save();
// Assumes the backing store is painted with the scale transform applied.
// Since tile content is already scaled, first revert the scaling from the painter.
gc.scale(FloatSize(1 / m_contentsScale, 1 / m_contentsScale));
IntRect dirtyRect = mapFromContents(rect);
TiledDrawingAreaTile::Coordinate topLeft = tileCoordinateForPoint(dirtyRect.topLeft());
TiledDrawingAreaTile::Coordinate bottomRight = tileCoordinateForPoint(dirtyRect.bottomRight());
for (unsigned yCoordinate = topLeft.y(); yCoordinate <= bottomRight.y(); ++yCoordinate) {
for (unsigned xCoordinate = topLeft.x(); xCoordinate <= bottomRight.x(); ++xCoordinate) {
TiledDrawingAreaTile::Coordinate currentCoordinate(xCoordinate, yCoordinate);
RefPtr<TiledDrawingAreaTile> currentTile = tileAt(currentCoordinate);
if (currentTile && currentTile->isReadyToPaint())
currentTile->paint(&gc, dirtyRect);
}
}
gc.restore();
}
void WebGraphicsLayer::computeTransformedVisibleRect()
{
if (!m_shouldUpdateVisibleRect)
return;
m_shouldUpdateVisibleRect = false;
m_layerTransform.setLocalTransform(transform());
m_layerTransform.setPosition(position());
m_layerTransform.setAnchorPoint(anchorPoint());
m_layerTransform.setSize(size());
m_layerTransform.setFlattening(!preserves3D());
m_layerTransform.setChildrenTransform(childrenTransform());
m_layerTransform.combineTransforms(parent() ? toWebGraphicsLayer(parent())->m_layerTransform.combinedForChildren() : TransformationMatrix());
// The combined transform will be used in tiledBackingStoreVisibleRect.
adjustVisibleRect();
adjustContentsScale();
}
