C++ (Cpp) CompositorParent::RootLayerTreeId示例

示例#1

文件： MetroWidget.cpp 项目： tmeshkova/mozilla-central

CompositorParent* MetroWidget::NewCompositorParent(int aSurfaceWidth, int aSurfaceHeight)
{
  CompositorParent *compositor = nsBaseWidget::NewCompositorParent(aSurfaceWidth, aSurfaceHeight);

  if (ShouldUseAPZC()) {
    mRootLayerTreeId = compositor->RootLayerTreeId();

    mController = new APZController();
    mController->SetWidgetListener(mWidgetListener);

    CompositorParent::SetControllerForLayerTree(mRootLayerTreeId, mController);

    APZController::sAPZC = CompositorParent::GetAPZCTreeManager(compositor->RootLayerTreeId());
    APZController::sAPZC->SetDPI(GetDPI());

    nsresult rv;
    nsCOMPtr<nsIObserverService> observerService = do_GetService("@mozilla.org/observer-service;1", &rv);
    if (NS_SUCCEEDED(rv)) {
      observerService->AddObserver(this, "apzc-scroll-offset-changed", false);
      observerService->AddObserver(this, "Metro:ZoomToRect", false);
    }
  }

  return compositor;
}

示例#2

CompositorParent* MetroWidget::NewCompositorParent(int aSurfaceWidth, int aSurfaceHeight)
{
  CompositorParent *compositor = nsBaseWidget::NewCompositorParent(aSurfaceWidth, aSurfaceHeight);

  if (ShouldUseAPZC()) {
    CompositorParent::SetControllerForLayerTree(compositor->RootLayerTreeId(), this);
    MetroWidget::sAPZC = CompositorParent::GetAPZCTreeManager(compositor->RootLayerTreeId());
  }

  return compositor;
}