| // 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 "sky/engine/core/compositing/SceneBuilder.h" |
| |
| #include "sky/engine/core/painting/Matrix.h" |
| #include "third_party/skia/include/core/SkColorFilter.h" |
| |
| namespace blink { |
| |
| SceneBuilder::SceneBuilder(const Rect& bounds) |
| { |
| m_canvas = m_pictureRecorder.beginRecording(bounds.sk_rect, |
| &m_rtreeFactory, SkPictureRecorder::kComputeSaveLayerInfo_RecordFlag); |
| } |
| |
| SceneBuilder::~SceneBuilder() |
| { |
| } |
| |
| void SceneBuilder::pushTransform(const Float32List& matrix4, ExceptionState& es) |
| { |
| SkMatrix sk_matrix = toSkMatrix(matrix4, es); |
| if (es.had_exception()) |
| return; |
| m_canvas->save(); |
| m_canvas->concat(sk_matrix); |
| } |
| |
| void SceneBuilder::pushClipRect(const Rect& rect) |
| { |
| if (!m_canvas) |
| return; |
| m_canvas->save(); |
| m_canvas->clipRect(rect.sk_rect); |
| } |
| |
| void SceneBuilder::pushClipRRect(const RRect* rrect, const Rect& bounds) |
| { |
| if (!m_canvas) |
| return; |
| m_canvas->saveLayer(&bounds.sk_rect, nullptr); |
| m_canvas->clipRRect(rrect->rrect()); |
| } |
| |
| void SceneBuilder::pushClipPath(const CanvasPath* path, const Rect& bounds) |
| { |
| if (!m_canvas) |
| return; |
| m_canvas->saveLayer(&bounds.sk_rect, nullptr); |
| m_canvas->clipPath(path->path()); |
| } |
| |
| void SceneBuilder::pushOpacity(int alpha, const Rect& bounds) |
| { |
| if (!m_canvas) |
| return; |
| SkColor color = SkColorSetARGB(alpha, 0, 0, 0); |
| RefPtr<SkColorFilter> colorFilter = adoptRef(SkColorFilter::CreateModeFilter(color, SkXfermode::kSrcOver_Mode)); |
| SkPaint paint; |
| paint.setColorFilter(colorFilter.get()); |
| m_canvas->saveLayer(&bounds.sk_rect, &paint); |
| } |
| |
| void SceneBuilder::pushColorFilter(SkColor color, SkXfermode::Mode transferMode, const Rect& bounds) |
| { |
| if (!m_canvas) |
| return; |
| RefPtr<SkColorFilter> colorFilter = adoptRef(SkColorFilter::CreateModeFilter(color, transferMode)); |
| SkPaint paint; |
| paint.setColorFilter(colorFilter.get()); |
| m_canvas->saveLayer(&bounds.sk_rect, &paint); |
| } |
| |
| void SceneBuilder::pop() |
| { |
| if (!m_canvas) |
| return; |
| m_canvas->restore(); |
| } |
| |
| void SceneBuilder::addPicture(const Offset& offset, Picture* picture, const Rect& paintBounds) |
| { |
| if (!m_canvas) |
| return; |
| m_canvas->save(); |
| m_canvas->translate(offset.sk_size.width(), offset.sk_size.height()); |
| m_canvas->drawPicture(picture->toSkia()); |
| m_canvas->restore(); |
| } |
| |
| PassRefPtr<Scene> SceneBuilder::build() |
| { |
| RefPtr<Scene> scene = Scene::create(adoptRef(m_pictureRecorder.endRecording())); |
| m_canvas = nullptr; |
| return scene.release(); |
| } |
| |
| } // namespace blink |