C++ (Cpp) visiblePart Examples

Example #1

File: TileGrid.cpp Project: hnney/webkit

void TileGrid::platformCALayerPaintContents(PlatformCALayer* platformCALayer, GraphicsContext& context, const FloatRect&)
{
#if PLATFORM(IOS)
    if (pthread_main_np())
        WebThreadLock();
#endif

    {
        GraphicsContextStateSaver stateSaver(context);

        FloatPoint3D layerOrigin = platformCALayer->position();
        context.translate(-layerOrigin.x(), -layerOrigin.y());
        context.scale(FloatSize(m_scale, m_scale));

        PlatformCALayer::RepaintRectList dirtyRects = PlatformCALayer::collectRectsToPaint(context.platformContext(), platformCALayer);
        PlatformCALayer::drawLayerContents(context.platformContext(), &m_controller.rootLayer(), dirtyRects);
    }

    int repaintCount = platformCALayerIncrementRepaintCount(platformCALayer);
    if (m_controller.rootLayer().owner()->platformCALayerShowRepaintCounter(0))
        PlatformCALayer::drawRepaintIndicator(context.platformContext(), platformCALayer, repaintCount, cachedCGColor(m_controller.tileDebugBorderColor()));

    if (m_controller.scrollingPerformanceLoggingEnabled()) {
        FloatRect visiblePart(platformCALayer->position().x(), platformCALayer->position().y(), platformCALayer->bounds().size().width(), platformCALayer->bounds().size().height());
        visiblePart.intersect(m_controller.visibleRect());

        if (repaintCount == 1 && !visiblePart.isEmpty())
            WTFLogAlways("SCROLLING: Filled visible fresh tile. Time: %f Unfilled Pixels: %u\n", WTF::monotonicallyIncreasingTime(), blankPixelCount());
    }
}

Example #2

File: TileController.cpp Project: emutavchi/WebKitForWayland

unsigned TileController::blankPixelCountForTiles(const PlatformLayerList& tiles, const FloatRect& visibleRect, const IntPoint& tileTranslation)
{
    Region paintedVisibleTiles;

    for (PlatformLayerList::const_iterator it = tiles.begin(), end = tiles.end(); it != end; ++it) {
        const PlatformLayer* tileLayer = it->get();

        FloatRect visiblePart(CGRectOffset(PlatformCALayer::frameForLayer(tileLayer), tileTranslation.x(), tileTranslation.y()));
        visiblePart.intersect(visibleRect);

        if (!visiblePart.isEmpty())
            paintedVisibleTiles.unite(enclosingIntRect(visiblePart));
    }

    Region uncoveredRegion(enclosingIntRect(visibleRect));
    uncoveredRegion.subtract(paintedVisibleTiles);

    return uncoveredRegion.totalArea();
}