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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include "VectorDrawable.h"
#include <SkColor.h>
namespace android {
namespace uirenderer {
/**
* PropertyValues holder contains data needed to change a property of a Vector Drawable object.
* When a fraction in [0f, 1f] is provided, the holder will calculate an interpolated value based
* on its start and end value, and set the new value on the VectorDrawble's corresponding property.
*/
class ANDROID_API PropertyValuesHolder {
public:
virtual void setFraction(float fraction) = 0;
void setPropertyDataSource(float* dataSource, int length) {
mDataSource.insert(mDataSource.begin(), dataSource, dataSource + length);
}
float getValueFromData(float fraction);
virtual ~PropertyValuesHolder() {}
protected:
std::vector<float> mDataSource;
};
class ANDROID_API GroupPropertyValuesHolder : public PropertyValuesHolder {
public:
GroupPropertyValuesHolder(VectorDrawable::Group* ptr, int propertyId, float startValue,
float endValue)
: mGroup(ptr)
, mPropertyId(propertyId)
, mStartValue(startValue)
, mEndValue(endValue){
}
void setFraction(float fraction) override;
private:
VectorDrawable::Group* mGroup;
int mPropertyId;
float mStartValue;
float mEndValue;
};
class ANDROID_API FullPathColorPropertyValuesHolder : public PropertyValuesHolder {
public:
FullPathColorPropertyValuesHolder(VectorDrawable::FullPath* ptr, int propertyId, int32_t startValue,
int32_t endValue)
: mFullPath(ptr)
, mPropertyId(propertyId)
, mStartValue(startValue)
, mEndValue(endValue) {};
void setFraction(float fraction) override;
static SkColor interpolateColors(SkColor fromColor, SkColor toColor, float fraction);
private:
VectorDrawable::FullPath* mFullPath;
int mPropertyId;
int32_t mStartValue;
int32_t mEndValue;
};
class ANDROID_API FullPathPropertyValuesHolder : public PropertyValuesHolder {
public:
FullPathPropertyValuesHolder(VectorDrawable::FullPath* ptr, int propertyId, float startValue,
float endValue)
: mFullPath(ptr)
, mPropertyId(propertyId)
, mStartValue(startValue)
, mEndValue(endValue) {};
void setFraction(float fraction) override;
private:
VectorDrawable::FullPath* mFullPath;
int mPropertyId;
float mStartValue;
float mEndValue;
};
class ANDROID_API PathDataPropertyValuesHolder : public PropertyValuesHolder {
public:
PathDataPropertyValuesHolder(VectorDrawable::Path* ptr, PathData* startValue,
PathData* endValue)
: mPath(ptr)
, mStartValue(*startValue)
, mEndValue(*endValue) {};
void setFraction(float fraction) override;
private:
VectorDrawable::Path* mPath;
PathData mPathData;
PathData mStartValue;
PathData mEndValue;
};
class ANDROID_API RootAlphaPropertyValuesHolder : public PropertyValuesHolder {
public:
RootAlphaPropertyValuesHolder(VectorDrawable::Tree* tree, float startValue, float endValue)
: mTree(tree)
, mStartValue(startValue)
, mEndValue(endValue) {}
void setFraction(float fraction) override;
private:
VectorDrawable::Tree* mTree;
float mStartValue;
float mEndValue;
};
}
}
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