Outline.h revision 77b5cad3efedd20f2b7cc14d87ccce1b0261960a
1b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik/* 2b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik * Copyright (C) 2014 The Android Open Source Project 3b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik * 4b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik * Licensed under the Apache License, Version 2.0 (the "License"); 5b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik * you may not use this file except in compliance with the License. 6b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik * You may obtain a copy of the License at 7b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik * 8b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik * http://www.apache.org/licenses/LICENSE-2.0 9b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik * 10b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik * Unless required by applicable law or agreed to in writing, software 11b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik * distributed under the License is distributed on an "AS IS" BASIS, 12b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik * See the License for the specific language governing permissions and 14b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik * limitations under the License. 15b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik */ 16b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik#ifndef OUTLINE_H 17b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik#define OUTLINE_H 18b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik 19b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik#include <SkPath.h> 20b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik 21b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik#include "Rect.h" 22b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik 23b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craiknamespace android { 24b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craiknamespace uirenderer { 25b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik 26b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craikclass Outline { 27b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craikpublic: 28b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik Outline() 29b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik : mShouldClip(false) 30b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik , mType(kOutlineType_None) 3177b5cad3efedd20f2b7cc14d87ccce1b0261960aChris Craik , mRadius(0) 3277b5cad3efedd20f2b7cc14d87ccce1b0261960aChris Craik , mAlpha(0.0f) {} 33b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik 3477b5cad3efedd20f2b7cc14d87ccce1b0261960aChris Craik void setRoundRect(int left, int top, int right, int bottom, float radius, float alpha) { 35b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik mType = kOutlineType_RoundRect; 36b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik mBounds.set(left, top, right, bottom); 37b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik mRadius = radius; 38b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik mPath.reset(); 39b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik mPath.addRoundRect(SkRect::MakeLTRB(left, top, right, bottom), 40b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik radius, radius); 4177b5cad3efedd20f2b7cc14d87ccce1b0261960aChris Craik mAlpha = alpha; 42b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik } 43b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik 4477b5cad3efedd20f2b7cc14d87ccce1b0261960aChris Craik void setConvexPath(const SkPath* outline, float alpha) { 45b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik if (!outline) { 46b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik setEmpty(); 47b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik return; 48b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik } 49b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik mType = kOutlineType_ConvexPath; 50b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik mPath = *outline; 51b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik mBounds.set(outline->getBounds()); 5277b5cad3efedd20f2b7cc14d87ccce1b0261960aChris Craik mAlpha = alpha; 53b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik } 54b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik 550645128b80621edee70f8cab4afb208fe0c26becChris Craik void setEmpty() { 560645128b80621edee70f8cab4afb208fe0c26becChris Craik mType = kOutlineType_Empty; 570645128b80621edee70f8cab4afb208fe0c26becChris Craik mPath.reset(); 5877b5cad3efedd20f2b7cc14d87ccce1b0261960aChris Craik mAlpha = 0.0f; 5961317325b7b4b4ffafd9400ab5966e8d7c67df2eChris Craik } 6061317325b7b4b4ffafd9400ab5966e8d7c67df2eChris Craik 610645128b80621edee70f8cab4afb208fe0c26becChris Craik void setNone() { 62b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik mType = kOutlineType_None; 63b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik mPath.reset(); 6477b5cad3efedd20f2b7cc14d87ccce1b0261960aChris Craik mAlpha = 0.0f; 65b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik } 66b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik 670645128b80621edee70f8cab4afb208fe0c26becChris Craik bool isEmpty() const { 680645128b80621edee70f8cab4afb208fe0c26becChris Craik return mType == kOutlineType_Empty; 690645128b80621edee70f8cab4afb208fe0c26becChris Craik } 700645128b80621edee70f8cab4afb208fe0c26becChris Craik 7177b5cad3efedd20f2b7cc14d87ccce1b0261960aChris Craik float getAlpha() const { 7277b5cad3efedd20f2b7cc14d87ccce1b0261960aChris Craik return mAlpha; 7377b5cad3efedd20f2b7cc14d87ccce1b0261960aChris Craik } 7477b5cad3efedd20f2b7cc14d87ccce1b0261960aChris Craik 75b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik void setShouldClip(bool clip) { 76b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik mShouldClip = clip; 77b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik } 78b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik 79deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik bool getShouldClip() const { 80deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik return mShouldClip; 81deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik } 82deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik 83b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik bool willClip() const { 84b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik // only round rect outlines can be used for clipping 85b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik return mShouldClip && (mType == kOutlineType_RoundRect); 86b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik } 87b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik 88deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik bool getAsRoundRect(Rect* outRect, float* outRadius) const { 89deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik if (mType == kOutlineType_RoundRect) { 90deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik outRect->set(mBounds); 91deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik *outRadius = mRadius; 92deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik return true; 93deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik } 94deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik return false; 95deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik } 96deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik 97d0a0b2a3140bfb1819a116413ce9d81886697a07John Reck const SkPath* getPath() const { 980645128b80621edee70f8cab4afb208fe0c26becChris Craik if (mType == kOutlineType_None || mType == kOutlineType_Empty) return NULL; 99b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik 100b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik return &mPath; 101b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik } 102b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik 103b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craikprivate: 104b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik enum OutlineType { 105b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik kOutlineType_None = 0, 1060645128b80621edee70f8cab4afb208fe0c26becChris Craik kOutlineType_Empty = 1, 1070645128b80621edee70f8cab4afb208fe0c26becChris Craik kOutlineType_ConvexPath = 2, 1080645128b80621edee70f8cab4afb208fe0c26becChris Craik kOutlineType_RoundRect = 3 109b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik }; 110b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik 111b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik bool mShouldClip; 112b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik OutlineType mType; 113b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik Rect mBounds; 114b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik float mRadius; 11577b5cad3efedd20f2b7cc14d87ccce1b0261960aChris Craik float mAlpha; 116b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik SkPath mPath; 117b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik}; 118b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik 119b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik} /* namespace uirenderer */ 120b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik} /* namespace android */ 121b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik 122b49f446c98096c4790a11d9b5bc83a4e585278c9Chris Craik#endif /* OUTLINE_H */ 123