//C++ TO C# CONVERTER WARNING: 'const' methods are not available in C#:
//ORIGINAL LINE: void Paint(CompositorContext::ScopedFrame& frame, bool ignore_raster_cache = false) const
public void Paint(CompositorContext.ScopedFrame frame, bool ignore_raster_cache = false)
{
TRACE_EVENT0("flutter", "LayerTree::Paint");
Layer.PaintContext context = new Layer.PaintContext(frame.canvas(), frame.view_embedder(), frame.context().texture_registry(), ignore_raster_cache ? null : frame.context().raster_cache(), checkerboard_offscreen_layers_);
if (root_layer_.needs_painting())
{
root_layer_.Paint(context);
}
}
public SKPicture Flatten(SKRect bounds)
{
TRACE_EVENT0("flutter", "LayerTree::Flatten");
SKPictureRecorder recorder = new SKPictureRecorder();
var canvas = recorder.BeginRecording(bounds);
if (canvas == null)
{
return(null);
}
Stopwatch unused_stopwatch = new Stopwatch();
TextureRegistry unused_texture_registry = new TextureRegistry();
SKMatrix root_surface_transformation = new SKMatrix();
// No root surface transformation. So assume identity.
canvas.ResetMatrix();
PrerollContext preroll_context = new PrerollContext(
null, null, null,
SKRect.Empty,
unused_stopwatch,
unused_stopwatch,
unused_texture_registry,
false);
Layer.PaintContext paint_context = new Layer.PaintContext(
canvas, null,
unused_stopwatch,
unused_stopwatch,
unused_texture_registry,
null, false);
// Even if we don't have a root layer, we still need to create an empty
// picture.
if (root_layer_ != null)
{
root_layer_.Preroll(preroll_context, root_surface_transformation);
// The needs painting flag may be set after the preroll. So check it after.
if (root_layer_.needs_painting())
{
root_layer_.Paint(paint_context);
}
}
return(recorder.EndRecording());
}
