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
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
|
/*
* Copyright (C) 2010 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.launcher2;
import com.android.launcher.R;
import com.android.launcher2.PagedView.PagedViewIconCache;
import android.content.Context;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Rect;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.Message;
import android.util.AttributeSet;
import android.widget.Checkable;
import android.widget.TextView;
/**
* An icon on a PagedView, specifically for items in the launcher's paged view (with compound
* drawables on the top).
*/
public class PagedViewIcon extends TextView implements Checkable {
private static final String TAG = "PagedViewIcon";
// holographic outline
private final Paint mPaint = new Paint();
private static HolographicOutlineHelper sHolographicOutlineHelper;
private Bitmap mCheckedOutline;
private Bitmap mHolographicOutline;
private Bitmap mIcon;
private Object mIconCacheKey;
private PagedViewIconCache mIconCache;
private int mAlpha;
private int mHolographicAlpha;
private boolean mIsChecked;
// Highlight colors
private int mHoloBlurColor;
private int mHoloOutlineColor;
private int mCheckedBlurColor;
private int mCheckedOutlineColor;
private static final HandlerThread sWorkerThread = new HandlerThread("pagedviewicon-helper");
static {
sWorkerThread.start();
}
private static final int MESSAGE_CREATE_HOLOGRAPHIC_OUTLINE = 1;
private static final Handler sWorker = new Handler(sWorkerThread.getLooper()) {
private DeferredHandler mHandler = new DeferredHandler();
private Paint mPaint = new Paint();
public void handleMessage(Message msg) {
final PagedViewIcon icon = (PagedViewIcon) msg.obj;
final Bitmap holographicOutline = Bitmap.createBitmap(
icon.mIcon.getWidth(), icon.mIcon.getHeight(), Bitmap.Config.ARGB_8888);
Canvas holographicOutlineCanvas = new Canvas(holographicOutline);
holographicOutlineCanvas.drawBitmap(icon.mIcon, 0, 0, mPaint);
sHolographicOutlineHelper.applyExpensiveOutlineWithBlur(holographicOutline,
holographicOutlineCanvas, icon.mHoloBlurColor, icon.mHoloOutlineColor);
mHandler.post(new Runnable() {
public void run() {
icon.mHolographicOutline = holographicOutline;
icon.mIconCache.addOutline(icon.mIconCacheKey, holographicOutline);
icon.invalidate();
}
});
}
};
public PagedViewIcon(Context context) {
this(context, null);
}
public PagedViewIcon(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public PagedViewIcon(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.PagedViewIcon, defStyle, 0);
mHoloBlurColor = a.getColor(R.styleable.PagedViewIcon_blurColor, 0);
mHoloOutlineColor = a.getColor(R.styleable.PagedViewIcon_outlineColor, 0);
mCheckedBlurColor = a.getColor(R.styleable.PagedViewIcon_checkedBlurColor, 0);
mCheckedOutlineColor = a.getColor(R.styleable.PagedViewIcon_checkedOutlineColor, 0);
a.recycle();
if (sHolographicOutlineHelper == null) {
sHolographicOutlineHelper = new HolographicOutlineHelper();
}
setFocusable(true);
setBackgroundDrawable(null);
}
private void queueHolographicOutlineCreation() {
// Generate the outline in the background
if (mHolographicOutline == null) {
Message m = sWorker.obtainMessage(MESSAGE_CREATE_HOLOGRAPHIC_OUTLINE);
m.obj = this;
sWorker.sendMessage(m);
}
}
public void applyFromApplicationInfo(ApplicationInfo info, PagedViewIconCache cache,
boolean scaleUp) {
mIconCache = cache;
mIconCacheKey = info;
mHolographicOutline = mIconCache.getOutline(mIconCacheKey);
mIcon = info.iconBitmap;
setCompoundDrawablesWithIntrinsicBounds(null, new FastBitmapDrawable(mIcon), null, null);
setText(info.title);
setTag(info);
queueHolographicOutlineCreation();
}
public void applyFromResolveInfo(ResolveInfo info, PackageManager packageManager,
PagedViewIconCache cache, IconCache modelIconCache) {
mIconCache = cache;
mIconCacheKey = info;
mHolographicOutline = mIconCache.getOutline(mIconCacheKey);
mIcon = Utilities.createIconBitmap(
modelIconCache.getFullResIcon(info, packageManager), mContext);
setCompoundDrawablesWithIntrinsicBounds(null, new FastBitmapDrawable(mIcon), null, null);
setText(info.loadLabel(packageManager));
setTag(info);
queueHolographicOutlineCreation();
}
@Override
public void setAlpha(float alpha) {
final float viewAlpha = sHolographicOutlineHelper.viewAlphaInterpolator(alpha);
final float holographicAlpha = sHolographicOutlineHelper.highlightAlphaInterpolator(alpha);
mAlpha = (int) (viewAlpha * 255);
mHolographicAlpha = (int) (holographicAlpha * 255);
super.setAlpha(viewAlpha);
}
public void invalidateCheckedImage() {
if (mCheckedOutline != null) {
mCheckedOutline.recycle();
mCheckedOutline = null;
}
}
@Override
protected void onDraw(Canvas canvas) {
if (mAlpha > 0) {
super.onDraw(canvas);
}
Bitmap overlay = null;
// draw any blended overlays
if (mCheckedOutline == null) {
if (mHolographicOutline != null && mHolographicAlpha > 0) {
mPaint.setAlpha(mHolographicAlpha);
overlay = mHolographicOutline;
}
} else {
mPaint.setAlpha(255);
overlay = mCheckedOutline;
}
if (overlay != null) {
final int compoundPaddingLeft = getCompoundPaddingLeft();
final int compoundPaddingRight = getCompoundPaddingRight();
int hspace = getWidth() - compoundPaddingRight - compoundPaddingLeft;
canvas.drawBitmap(overlay,
compoundPaddingLeft + (hspace - overlay.getWidth()) / 2,
mPaddingTop,
mPaint);
}
}
@Override
public void onDetachedFromWindow() {
super.onDetachedFromWindow();
sWorker.removeMessages(MESSAGE_CREATE_HOLOGRAPHIC_OUTLINE, this);
}
@Override
public boolean isChecked() {
return mIsChecked;
}
@Override
public void setChecked(boolean checked) {
if (mIsChecked != checked) {
mIsChecked = checked;
if (mIsChecked) {
mCheckedOutline = Bitmap.createBitmap(mIcon.getWidth(), mIcon.getHeight(),
Bitmap.Config.ARGB_8888);
Canvas checkedOutlineCanvas = new Canvas(mCheckedOutline);
mPaint.setAlpha(255);
checkedOutlineCanvas.drawBitmap(mIcon, 0, 0, mPaint);
sHolographicOutlineHelper.applyExpensiveOutlineWithBlur(mCheckedOutline,
checkedOutlineCanvas, mCheckedBlurColor, mCheckedOutlineColor);
} else {
invalidateCheckedImage();
}
invalidate();
}
}
@Override
public void toggle() {
setChecked(!mIsChecked);
}
}
|
