blob: b829cab2ff2b53f15074cf3760e84a3ffb3417e9 (
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
|
/*
* Copyright (C) 2020 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.
*/
package com.android.wallpaper.widget;
import android.graphics.Canvas;
import android.graphics.ColorFilter;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.drawable.Drawable;
import android.view.ViewOverlay;
import androidx.annotation.Nullable;
/**
* Translucent Drawable to be rendered on a {@link ViewOverlay} to allow the window background
* to be seen through it.
*/
public class LiveTileOverlay extends Drawable {
public static final LiveTileOverlay INSTANCE = new LiveTileOverlay();
private final Paint mPaint = new Paint();
private final Rect mBoundsRect = new Rect();
private RectF mCurrentRect;
private float mCornerRadius;
private boolean mIsAttached;
private Drawable mForegroundDrawable;
private LiveTileOverlay() {
mPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
}
/**
* Update the position and radius of the overlay.
*/
public void update(RectF currentRect, float cornerRadius) {
invalidateSelf();
mCurrentRect = currentRect;
mCornerRadius = cornerRadius;
mCurrentRect.roundOut(mBoundsRect);
setBounds(mBoundsRect);
invalidateSelf();
}
@Override
public void draw(Canvas canvas) {
if (mCurrentRect != null) {
canvas.drawRoundRect(mCurrentRect, mCornerRadius, mCornerRadius, mPaint);
if (mForegroundDrawable != null) {
mForegroundDrawable.draw(canvas);
}
}
}
@Override
public void setAlpha(int i) { }
@Override
public void setColorFilter(ColorFilter colorFilter) { }
@Override
public int getOpacity() {
return PixelFormat.TRANSLUCENT;
}
/**
* Attach this drawable to a given {@link ViewOverlay}
* @return true if the drawable was newly attached, false if it was already attached or it
* couldn't be attached
*/
public boolean attach(ViewOverlay overlay) {
if (overlay != null && !mIsAttached) {
overlay.add(this);
mIsAttached = true;
return true;
}
return false;
}
/**
* Detach this drawable from the given overlay
* @param overlay
*/
public void detach(ViewOverlay overlay) {
if (overlay != null) {
overlay.remove(this);
mIsAttached = false;
}
}
/**
* Set a drawable to be drawn on top of this one.
*/
public void setForegroundDrawable(@Nullable Drawable foregroundDrawable) {
mForegroundDrawable = foregroundDrawable;
invalidateSelf();
}
}
|
