Outline.h revision 61317325b7b4b4ffafd9400ab5966e8d7c67df2e
1/* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16#ifndef OUTLINE_H 17#define OUTLINE_H 18 19#include <SkPath.h> 20 21#include "Rect.h" 22 23namespace android { 24namespace uirenderer { 25 26class Outline { 27public: 28 Outline() 29 : mShouldClip(false) 30 , mType(kOutlineType_None) 31 , mRadius(0) {} 32 33 void setRoundRect(int left, int top, int right, int bottom, int radius) { 34 mType = kOutlineType_RoundRect; 35 mBounds.set(left, top, right, bottom); 36 mRadius = radius; 37 mPath.reset(); 38 mPath.addRoundRect(SkRect::MakeLTRB(left, top, right, bottom), 39 radius, radius); 40 } 41 42 void setConvexPath(const SkPath* outline) { 43 if (!outline) { 44 setEmpty(); 45 return; 46 } 47 mType = kOutlineType_ConvexPath; 48 mPath = *outline; 49 mBounds.set(outline->getBounds()); 50 } 51 52 bool isEmpty() const { 53 return mType == kOutlineType_None; 54 } 55 56 void setEmpty() { 57 mType = kOutlineType_None; 58 mPath.reset(); 59 } 60 61 void setShouldClip(bool clip) { 62 mShouldClip = clip; 63 } 64 65 bool getShouldClip() const { 66 return mShouldClip; 67 } 68 69 bool willClip() const { 70 // only round rect outlines can be used for clipping 71 return mShouldClip && (mType == kOutlineType_RoundRect); 72 } 73 74 bool getAsRoundRect(Rect* outRect, float* outRadius) const { 75 if (mType == kOutlineType_RoundRect) { 76 outRect->set(mBounds); 77 *outRadius = mRadius; 78 return true; 79 } 80 return false; 81 } 82 83 const SkPath* getPath() const { 84 if (mType == kOutlineType_None) return NULL; 85 86 return &mPath; 87 } 88 89private: 90 enum OutlineType { 91 kOutlineType_None = 0, 92 kOutlineType_ConvexPath = 1, 93 kOutlineType_RoundRect = 2 94 }; 95 96 bool mShouldClip; 97 OutlineType mType; 98 Rect mBounds; 99 float mRadius; 100 SkPath mPath; 101}; 102 103} /* namespace uirenderer */ 104} /* namespace android */ 105 106#endif /* OUTLINE_H */ 107