C++ (Cpp) FrameMetrics::GetScrollOffsetInLayerPixels Examples

Example #1

File: ContainerLayerComposite.cpp Project: franzks/gecko-dev

static void PrintUniformityInfo(Layer* aLayer)
{

  if(Layer::TYPE_CONTAINER != aLayer->GetType()) {
    return;
  }

  // Don't want to print a log for smaller layers
  if (aLayer->GetEffectiveVisibleRegion().GetBounds().width < 300 ||
      aLayer->GetEffectiveVisibleRegion().GetBounds().height < 300) {
    return;
  }

  FrameMetrics frameMetrics = aLayer->AsContainerLayer()->GetFrameMetrics();
  LayerIntPoint scrollOffset = RoundedToInt(frameMetrics.GetScrollOffsetInLayerPixels());
  const gfx::Point layerTransform = GetScrollData(aLayer);
  gfx::Point layerScroll;
  layerScroll.x = scrollOffset.x - layerTransform.x;
  layerScroll.y = scrollOffset.y - layerTransform.y;

  printf_stderr("UniformityInfo Layer_Move %llu %p %f, %f\n",
    TimeStamp::Now(), aLayer, layerScroll.x, layerScroll.y);
}