1fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot/* 2fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Copyright 2013 Google Inc. 3fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * 4fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Use of this source code is governed by a BSD-style license that can be 5fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * found in the LICENSE file. 6fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 7fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 8fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#ifndef SkCanvasStack_DEFINED 9fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#define SkCanvasStack_DEFINED 10fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 11fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkNWayCanvas.h" 12fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkRegion.h" 13fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkTArray.h" 14fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 15fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot/** 16fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Like NWayCanvas, in that it forwards all canvas methods to each sub-canvas that is "pushed". 17fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * 18fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Unlike NWayCanvas, this takes ownership of each subcanvas, and deletes them when this canvas 19fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * is deleted. 20fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 21fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotclass SkCanvasStack : public SkNWayCanvas { 22fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotpublic: 23fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkCanvasStack(int width, int height); 24fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot ~SkCanvasStack() override; 25fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 26fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot void pushCanvas(std::unique_ptr<SkCanvas>, const SkIPoint& origin); 27fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot void removeAll() override; 28fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 29fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot /* 30fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * The following add/remove canvas methods are overrides from SkNWayCanvas 31fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * that do not make sense in the context of our CanvasStack, but since we 32fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * can share most of the other implementation of NWay we override those 33fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * methods to be no-ops. 34fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 35fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot void addCanvas(SkCanvas*) override { SkDEBUGFAIL("Invalid Op"); } 36fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot void removeCanvas(SkCanvas*) override { SkDEBUGFAIL("Invalid Op"); } 37fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 38fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotprotected: 39fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot void didSetMatrix(const SkMatrix&) override; 40fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 41fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot void onClipRect(const SkRect&, SkClipOp, ClipEdgeStyle) override; 42fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot void onClipRRect(const SkRRect&, SkClipOp, ClipEdgeStyle) override; 43fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot void onClipPath(const SkPath&, SkClipOp, ClipEdgeStyle) override; 44fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot void onClipRegion(const SkRegion&, SkClipOp) override; 45fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 46fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotprivate: 47fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot void clipToZOrderedBounds(); 48fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 49fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot struct CanvasData { 50fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkIPoint origin; 51fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkRegion requiredClip; 52fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot std::unique_ptr<SkCanvas> ownedCanvas; 53fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot }; 54fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 55fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkTArray<CanvasData> fCanvasData; 56fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 57fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot typedef SkNWayCanvas INHERITED; 58fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot}; 59fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 60fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#endif 61