summaryrefslogtreecommitdiffstats
path: root/libs/hwui/Animator.h
blob: 1b3d8e7f4842bfcda604d51e1d9b7cca453f1d11 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
/*
 * Copyright (C) 2014 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.
 */
#ifndef ANIMATOR_H
#define ANIMATOR_H

#include <memory>
#include <cutils/compiler.h>
#include <utils/RefBase.h>
#include <utils/StrongPointer.h>
#include <utils/Timers.h>

#include "utils/Macros.h"

namespace android {
namespace uirenderer {

class AnimationContext;
class BaseRenderNodeAnimator;
class CanvasPropertyPrimitive;
class CanvasPropertyPaint;
class Interpolator;
class RenderNode;
class RenderProperties;

class AnimationListener : public VirtualLightRefBase {
public:
    ANDROID_API virtual void onAnimationFinished(BaseRenderNodeAnimator*) = 0;
protected:
    ANDROID_API virtual ~AnimationListener() {}
};

class BaseRenderNodeAnimator : public VirtualLightRefBase {
    PREVENT_COPY_AND_ASSIGN(BaseRenderNodeAnimator);
public:
    ANDROID_API void setStartValue(float value);
    ANDROID_API void setInterpolator(Interpolator* interpolator);
    ANDROID_API void setDuration(nsecs_t durationInMs);
    ANDROID_API nsecs_t duration() { return mDuration; }
    ANDROID_API void setStartDelay(nsecs_t startDelayInMs);
    ANDROID_API nsecs_t startDelay() { return mStartDelay; }
    ANDROID_API void setListener(AnimationListener* listener) {
        mListener = listener;
    }
    AnimationListener* listener() { return mListener.get(); }
    ANDROID_API void setAllowRunningAsync(bool mayRunAsync) {
        mMayRunAsync = mayRunAsync;
    }
    bool mayRunAsync() { return mMayRunAsync; }
    ANDROID_API void start() { mStagingPlayState = RUNNING; onStagingPlayStateChanged(); }
    ANDROID_API void end() { mStagingPlayState = FINISHED; onStagingPlayStateChanged(); }

    void attach(RenderNode* target);
    virtual void onAttached() {}
    void detach() { mTarget = nullptr; }
    void pushStaging(AnimationContext& context);
    bool animate(AnimationContext& context);

    bool isRunning() { return mPlayState == RUNNING; }
    bool isFinished() { return mPlayState == FINISHED; }
    float finalValue() { return mFinalValue; }

    ANDROID_API virtual uint32_t dirtyMask() = 0;

    void forceEndNow(AnimationContext& context);

protected:
    BaseRenderNodeAnimator(float finalValue);
    virtual ~BaseRenderNodeAnimator();

    virtual float getValue(RenderNode* target) const = 0;
    virtual void setValue(RenderNode* target, float value) = 0;
    RenderNode* target() { return mTarget; }

    void callOnFinishedListener(AnimationContext& context);

    virtual void onStagingPlayStateChanged() {}

    enum PlayState {
        NOT_STARTED,
        RUNNING,
        FINISHED,
    };

    RenderNode* mTarget;

    float mFinalValue;
    float mDeltaValue;
    float mFromValue;

    std::unique_ptr<Interpolator> mInterpolator;
    PlayState mStagingPlayState;
    PlayState mPlayState;
    bool mHasStartValue;
    nsecs_t mStartTime;
    nsecs_t mDuration;
    nsecs_t mStartDelay;
    bool mMayRunAsync;

    sp<AnimationListener> mListener;

private:
    inline void checkMutable();
    virtual void transitionToRunning(AnimationContext& context);
    void doSetStartValue(float value);
};

class RenderPropertyAnimator : public BaseRenderNodeAnimator {
public:
    enum RenderProperty {
        TRANSLATION_X = 0,
        TRANSLATION_Y,
        TRANSLATION_Z,
        SCALE_X,
        SCALE_Y,
        ROTATION,
        ROTATION_X,
        ROTATION_Y,
        X,
        Y,
        Z,
        ALPHA,
    };

    ANDROID_API RenderPropertyAnimator(RenderProperty property, float finalValue);

    ANDROID_API virtual uint32_t dirtyMask();

protected:
    virtual float getValue(RenderNode* target) const override;
    virtual void setValue(RenderNode* target, float value) override;
    virtual void onAttached() override;
    virtual void onStagingPlayStateChanged() override;

private:
    typedef bool (RenderProperties::*SetFloatProperty)(float value);
    typedef float (RenderProperties::*GetFloatProperty)() const;

    struct PropertyAccessors;
    const PropertyAccessors* mPropertyAccess;

    static const PropertyAccessors PROPERTY_ACCESSOR_LUT[];
};

class CanvasPropertyPrimitiveAnimator : public BaseRenderNodeAnimator {
public:
    ANDROID_API CanvasPropertyPrimitiveAnimator(CanvasPropertyPrimitive* property,
            float finalValue);

    ANDROID_API virtual uint32_t dirtyMask();

protected:
    virtual float getValue(RenderNode* target) const override;
    virtual void setValue(RenderNode* target, float value) override;
private:
    sp<CanvasPropertyPrimitive> mProperty;
};

class CanvasPropertyPaintAnimator : public BaseRenderNodeAnimator {
public:
    enum PaintField {
        STROKE_WIDTH = 0,
        ALPHA,
    };

    ANDROID_API CanvasPropertyPaintAnimator(CanvasPropertyPaint* property,
            PaintField field, float finalValue);

    ANDROID_API virtual uint32_t dirtyMask();

protected:
    virtual float getValue(RenderNode* target) const override;
    virtual void setValue(RenderNode* target, float value) override;
private:
    sp<CanvasPropertyPaint> mProperty;
    PaintField mField;
};

class RevealAnimator : public BaseRenderNodeAnimator {
public:
    ANDROID_API RevealAnimator(int centerX, int centerY,
            float startValue, float finalValue);

    ANDROID_API virtual uint32_t dirtyMask();

protected:
    virtual float getValue(RenderNode* target) const override;
    virtual void setValue(RenderNode* target, float value) override;

private:
    int mCenterX, mCenterY;
};

} /* namespace uirenderer */
} /* namespace android */

#endif /* ANIMATOR_H */