blob: d5cf15f6e6e90044bf096148ecb0471454acb67c (
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
|
/*
* Copyright (C) 2013 The CyanogenMod 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.
*/
package org.cyanogenmod.wallpapers.photophase.transitions;
import android.content.Context;
import android.opengl.GLException;
import android.os.SystemClock;
import org.cyanogenmod.wallpapers.photophase.TextureManager;
import org.cyanogenmod.wallpapers.photophase.transitions.Transitions.TRANSITIONS;
/**
* A simple transition that swap an image after the transition time is ended.
*/
public class SwapTransition extends NullTransition {
private static final float TRANSITION_TIME = 250.0f;
private boolean mRunning;
private long mTime;
/**
* Constructor of <code>SwapTransition</code>
*
* @param ctx The current context
* @param tm The texture manager
*/
public SwapTransition(Context ctx, TextureManager tm) {
super(ctx, tm);
}
/**
* {@inheritDoc}
*/
@Override
public TRANSITIONS getType() {
return TRANSITIONS.SWAP;
}
/**
* {@inheritDoc}
*/
@Override
public boolean hasTransitionTarget() {
return true;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isRunning() {
return mRunning;
}
/**
* {@inheritDoc}
*/
@Override
public void reset() {
super.reset();
mTime = -1;
mRunning = true;
}
/**
* {@inheritDoc}
*/
@Override
public void apply(float[] matrix) throws GLException {
// Check internal vars
if (mTarget == null ||
mTarget.getPositionBuffer() == null ||
mTarget.getTextureBuffer() == null) {
return;
}
if (mTransitionTarget == null ||
mTransitionTarget.getPositionBuffer() == null ||
mTransitionTarget.getTextureBuffer() == null) {
return;
}
// Set the time the first time
if (mTime == -1) {
mTime = SystemClock.uptimeMillis();
}
// Calculate the delta time
final float delta = Math.min(SystemClock.uptimeMillis() - mTime, TRANSITION_TIME) / TRANSITION_TIME;
// Apply the transition
boolean ended = delta == 1;
draw(ended ? mTransitionTarget : mTarget, matrix);
mRunning = !ended;
}
}
|