Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 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 | |
| 17 | #pragma once |
| 18 | |
| 19 | #include "VectorDrawable.h" |
| 20 | |
| 21 | #include <SkColor.h> |
| 22 | |
| 23 | namespace android { |
| 24 | namespace uirenderer { |
| 25 | |
| 26 | /** |
| 27 | * PropertyValues holder contains data needed to change a property of a Vector Drawable object. |
| 28 | * When a fraction in [0f, 1f] is provided, the holder will calculate an interpolated value based |
| 29 | * on its start and end value, and set the new value on the VectorDrawble's corresponding property. |
| 30 | */ |
| 31 | class ANDROID_API PropertyValuesHolder { |
| 32 | public: |
| 33 | virtual void setFraction(float fraction) = 0; |
| 34 | void setPropertyDataSource(float* dataSource, int length) { |
| 35 | mDataSource.insert(mDataSource.begin(), dataSource, dataSource + length); |
| 36 | } |
| 37 | float getValueFromData(float fraction); |
| 38 | virtual ~PropertyValuesHolder() {} |
| 39 | protected: |
| 40 | std::vector<float> mDataSource; |
| 41 | }; |
| 42 | |
| 43 | class ANDROID_API GroupPropertyValuesHolder : public PropertyValuesHolder { |
| 44 | public: |
| 45 | GroupPropertyValuesHolder(VectorDrawable::Group* ptr, int propertyId, float startValue, |
| 46 | float endValue) |
| 47 | : mGroup(ptr) |
| 48 | , mPropertyId(propertyId) |
| 49 | , mStartValue(startValue) |
| 50 | , mEndValue(endValue){ |
| 51 | } |
| 52 | void setFraction(float fraction) override; |
| 53 | private: |
| 54 | VectorDrawable::Group* mGroup; |
| 55 | int mPropertyId; |
| 56 | float mStartValue; |
| 57 | float mEndValue; |
| 58 | }; |
| 59 | |
| 60 | class ANDROID_API FullPathColorPropertyValuesHolder : public PropertyValuesHolder { |
| 61 | public: |
| 62 | FullPathColorPropertyValuesHolder(VectorDrawable::FullPath* ptr, int propertyId, int32_t startValue, |
| 63 | int32_t endValue) |
| 64 | : mFullPath(ptr) |
| 65 | , mPropertyId(propertyId) |
| 66 | , mStartValue(startValue) |
| 67 | , mEndValue(endValue) {}; |
| 68 | void setFraction(float fraction) override; |
| 69 | static SkColor interpolateColors(SkColor fromColor, SkColor toColor, float fraction); |
| 70 | private: |
| 71 | VectorDrawable::FullPath* mFullPath; |
| 72 | int mPropertyId; |
| 73 | int32_t mStartValue; |
| 74 | int32_t mEndValue; |
| 75 | }; |
| 76 | |
| 77 | class ANDROID_API FullPathPropertyValuesHolder : public PropertyValuesHolder { |
| 78 | public: |
| 79 | FullPathPropertyValuesHolder(VectorDrawable::FullPath* ptr, int propertyId, float startValue, |
| 80 | float endValue) |
| 81 | : mFullPath(ptr) |
| 82 | , mPropertyId(propertyId) |
| 83 | , mStartValue(startValue) |
| 84 | , mEndValue(endValue) {}; |
| 85 | void setFraction(float fraction) override; |
| 86 | private: |
| 87 | VectorDrawable::FullPath* mFullPath; |
| 88 | int mPropertyId; |
| 89 | float mStartValue; |
| 90 | float mEndValue; |
| 91 | }; |
| 92 | |
| 93 | class ANDROID_API PathDataPropertyValuesHolder : public PropertyValuesHolder { |
| 94 | public: |
| 95 | PathDataPropertyValuesHolder(VectorDrawable::Path* ptr, PathData* startValue, |
| 96 | PathData* endValue) |
| 97 | : mPath(ptr) |
| 98 | , mStartValue(*startValue) |
| 99 | , mEndValue(*endValue) {}; |
| 100 | void setFraction(float fraction) override; |
| 101 | private: |
| 102 | VectorDrawable::Path* mPath; |
| 103 | PathData mPathData; |
| 104 | PathData mStartValue; |
| 105 | PathData mEndValue; |
| 106 | }; |
| 107 | |
| 108 | class ANDROID_API RootAlphaPropertyValuesHolder : public PropertyValuesHolder { |
| 109 | public: |
| 110 | RootAlphaPropertyValuesHolder(VectorDrawable::Tree* tree, float startValue, float endValue) |
| 111 | : mTree(tree) |
| 112 | , mStartValue(startValue) |
| 113 | , mEndValue(endValue) {} |
| 114 | void setFraction(float fraction) override; |
| 115 | private: |
| 116 | VectorDrawable::Tree* mTree; |
| 117 | float mStartValue; |
| 118 | float mEndValue; |
| 119 | }; |
| 120 | } |
| 121 | } |