| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "flutter/flow/layers/clip_rrect_layer.h" |
| |
| namespace flow { |
| |
| ClipRRectLayer::ClipRRectLayer(Clip clip_behavior) |
| : clip_behavior_(clip_behavior) {} |
| |
| ClipRRectLayer::~ClipRRectLayer() = default; |
| |
| void ClipRRectLayer::Preroll(PrerollContext* context, const SkMatrix& matrix) { |
| SkRect child_paint_bounds = SkRect::MakeEmpty(); |
| PrerollChildren(context, matrix, &child_paint_bounds); |
| |
| if (child_paint_bounds.intersect(clip_rrect_.getBounds())) { |
| set_paint_bounds(child_paint_bounds); |
| } |
| } |
| |
| #if defined(OS_FUCHSIA) |
| |
| void ClipRRectLayer::UpdateScene(SceneUpdateContext& context) { |
| FML_DCHECK(needs_system_composite()); |
| |
| // TODO(MZ-137): Need to be able to express the radii as vectors. |
| scenic::RoundedRectangle shape( |
| context.session(), // session |
| clip_rrect_.width(), // width |
| clip_rrect_.height(), // height |
| clip_rrect_.radii(SkRRect::kUpperLeft_Corner).x(), // top_left_radius |
| clip_rrect_.radii(SkRRect::kUpperRight_Corner).x(), // top_right_radius |
| clip_rrect_.radii(SkRRect::kLowerRight_Corner) |
| .x(), // bottom_right_radius |
| clip_rrect_.radii(SkRRect::kLowerLeft_Corner).x() // bottom_left_radius |
| ); |
| |
| // TODO(liyuqian): respect clip_behavior_ |
| SceneUpdateContext::Clip clip(context, shape, clip_rrect_.getBounds()); |
| UpdateSceneChildren(context); |
| } |
| |
| #endif // defined(OS_FUCHSIA) |
| |
| void ClipRRectLayer::Paint(PaintContext& context) const { |
| TRACE_EVENT0("flutter", "ClipRRectLayer::Paint"); |
| FML_DCHECK(needs_painting()); |
| |
| SkAutoCanvasRestore save(&context.canvas, true); |
| context.canvas.clipRRect(clip_rrect_, clip_behavior_ != Clip::hardEdge); |
| if (clip_behavior_ == Clip::antiAliasWithSaveLayer) { |
| context.canvas.saveLayer(paint_bounds(), nullptr); |
| } |
| PaintChildren(context); |
| if (clip_behavior_ == Clip::antiAliasWithSaveLayer) { |
| context.canvas.restore(); |
| } |
| } |
| |
| } // namespace flow |