Mike Digman | 220587e | 2019-03-13 11:21:42 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.internal.app; |
| 18 | |
Mike Digman | 9c4ae50 | 2019-03-19 17:02:25 -0700 | [diff] [blame] | 19 | import static android.content.Context.ACTIVITY_SERVICE; |
Mike Digman | 220587e | 2019-03-13 11:21:42 -0700 | [diff] [blame] | 20 | import static android.graphics.Paint.DITHER_FLAG; |
| 21 | import static android.graphics.Paint.FILTER_BITMAP_FLAG; |
| 22 | |
| 23 | import android.annotation.NonNull; |
| 24 | import android.annotation.Nullable; |
Mike Digman | 9c4ae50 | 2019-03-19 17:02:25 -0700 | [diff] [blame] | 25 | import android.app.ActivityManager; |
Mike Digman | 220587e | 2019-03-13 11:21:42 -0700 | [diff] [blame] | 26 | import android.content.Context; |
| 27 | import android.content.pm.PackageManager; |
| 28 | import android.content.res.Resources; |
| 29 | import android.content.res.Resources.Theme; |
| 30 | import android.graphics.Bitmap; |
| 31 | import android.graphics.BlurMaskFilter; |
| 32 | import android.graphics.BlurMaskFilter.Blur; |
| 33 | import android.graphics.Canvas; |
| 34 | import android.graphics.Color; |
| 35 | import android.graphics.Paint; |
| 36 | import android.graphics.PaintFlagsDrawFilter; |
Mike Digman | 6f31c53 | 2019-04-12 10:02:49 -0700 | [diff] [blame] | 37 | import android.graphics.PorterDuff; |
| 38 | import android.graphics.PorterDuffXfermode; |
Mike Digman | 220587e | 2019-03-13 11:21:42 -0700 | [diff] [blame] | 39 | import android.graphics.Rect; |
| 40 | import android.graphics.RectF; |
| 41 | import android.graphics.drawable.AdaptiveIconDrawable; |
| 42 | import android.graphics.drawable.BitmapDrawable; |
| 43 | import android.graphics.drawable.ColorDrawable; |
| 44 | import android.graphics.drawable.Drawable; |
| 45 | import android.graphics.drawable.DrawableWrapper; |
Mike Digman | 220587e | 2019-03-13 11:21:42 -0700 | [diff] [blame] | 46 | import android.os.UserHandle; |
| 47 | import android.util.AttributeSet; |
Mike Digman | 9c4ae50 | 2019-03-19 17:02:25 -0700 | [diff] [blame] | 48 | import android.util.Pools.SynchronizedPool; |
Mike Digman | 220587e | 2019-03-13 11:21:42 -0700 | [diff] [blame] | 49 | |
| 50 | import com.android.internal.R; |
| 51 | |
| 52 | import org.xmlpull.v1.XmlPullParser; |
| 53 | |
| 54 | import java.nio.ByteBuffer; |
| 55 | |
| 56 | |
| 57 | /** |
| 58 | * @deprecated Use the Launcher3 Iconloaderlib at packages/apps/Launcher3/iconloaderlib. This class |
| 59 | * is a temporary fork of Iconloader. It combines all necessary methods to render app icons that are |
Mike Digman | 6f31c53 | 2019-04-12 10:02:49 -0700 | [diff] [blame] | 60 | * possibly badged. It is intended to be used only by Sharesheet for the Q release with custom code. |
Mike Digman | 220587e | 2019-03-13 11:21:42 -0700 | [diff] [blame] | 61 | */ |
| 62 | @Deprecated |
| 63 | public class SimpleIconFactory { |
| 64 | |
Mike Digman | 9c4ae50 | 2019-03-19 17:02:25 -0700 | [diff] [blame] | 65 | private static final SynchronizedPool<SimpleIconFactory> sPool = |
| 66 | new SynchronizedPool<>(Runtime.getRuntime().availableProcessors()); |
| 67 | |
Mike Digman | 220587e | 2019-03-13 11:21:42 -0700 | [diff] [blame] | 68 | private static final int DEFAULT_WRAPPER_BACKGROUND = Color.WHITE; |
| 69 | private static final float BLUR_FACTOR = 0.5f / 48; |
| 70 | |
| 71 | private Context mContext; |
| 72 | private Canvas mCanvas; |
| 73 | private PackageManager mPm; |
| 74 | |
| 75 | private int mFillResIconDpi; |
| 76 | private int mIconBitmapSize; |
| 77 | private int mBadgeBitmapSize; |
| 78 | private int mWrapperBackgroundColor; |
| 79 | |
| 80 | private Drawable mWrapperIcon; |
| 81 | private final Rect mOldBounds = new Rect(); |
| 82 | |
| 83 | /** |
Mike Digman | 9c4ae50 | 2019-03-19 17:02:25 -0700 | [diff] [blame] | 84 | * Obtain a SimpleIconFactory from a pool objects. |
| 85 | * |
Mike Digman | 220587e | 2019-03-13 11:21:42 -0700 | [diff] [blame] | 86 | * @deprecated Do not use, functionality will be replaced by iconloader lib eventually. |
| 87 | */ |
| 88 | @Deprecated |
Mike Digman | 9c4ae50 | 2019-03-19 17:02:25 -0700 | [diff] [blame] | 89 | public static SimpleIconFactory obtain(Context ctx) { |
| 90 | SimpleIconFactory instance = sPool.acquire(); |
| 91 | if (instance == null) { |
| 92 | final ActivityManager am = (ActivityManager) ctx.getSystemService(ACTIVITY_SERVICE); |
| 93 | final int iconDpi = (am == null) ? 0 : am.getLauncherLargeIconDensity(); |
| 94 | |
| 95 | final Resources r = ctx.getResources(); |
| 96 | final int iconSize = r.getDimensionPixelSize(R.dimen.resolver_icon_size); |
| 97 | final int badgeSize = r.getDimensionPixelSize(R.dimen.resolver_badge_size); |
| 98 | |
| 99 | instance = new SimpleIconFactory(ctx, iconDpi, iconSize, badgeSize); |
| 100 | instance.setWrapperBackgroundColor(Color.WHITE); |
| 101 | } |
| 102 | |
| 103 | return instance; |
| 104 | } |
| 105 | |
| 106 | /** |
| 107 | * Recycles the SimpleIconFactory so others may use it. |
| 108 | * |
| 109 | * @deprecated Do not use, functionality will be replaced by iconloader lib eventually. |
| 110 | */ |
| 111 | @Deprecated |
| 112 | public void recycle() { |
| 113 | // Return to default background color |
| 114 | setWrapperBackgroundColor(Color.WHITE); |
| 115 | sPool.release(this); |
| 116 | } |
| 117 | |
| 118 | /** |
| 119 | * @deprecated Do not use, functionality will be replaced by iconloader lib eventually. |
| 120 | */ |
| 121 | @Deprecated |
| 122 | private SimpleIconFactory(Context context, int fillResIconDpi, int iconBitmapSize, |
Mike Digman | 220587e | 2019-03-13 11:21:42 -0700 | [diff] [blame] | 123 | int badgeBitmapSize) { |
| 124 | mContext = context.getApplicationContext(); |
| 125 | mPm = mContext.getPackageManager(); |
| 126 | mIconBitmapSize = iconBitmapSize; |
| 127 | mBadgeBitmapSize = badgeBitmapSize; |
| 128 | mFillResIconDpi = fillResIconDpi; |
| 129 | |
| 130 | mCanvas = new Canvas(); |
| 131 | mCanvas.setDrawFilter(new PaintFlagsDrawFilter(DITHER_FLAG, FILTER_BITMAP_FLAG)); |
| 132 | |
| 133 | // Normalizer init |
| 134 | // Use twice the icon size as maximum size to avoid scaling down twice. |
| 135 | mMaxSize = iconBitmapSize * 2; |
| 136 | mBitmap = Bitmap.createBitmap(mMaxSize, mMaxSize, Bitmap.Config.ALPHA_8); |
| 137 | mScaleCheckCanvas = new Canvas(mBitmap); |
| 138 | mPixels = new byte[mMaxSize * mMaxSize]; |
| 139 | mLeftBorder = new float[mMaxSize]; |
| 140 | mRightBorder = new float[mMaxSize]; |
| 141 | mBounds = new Rect(); |
| 142 | mAdaptiveIconBounds = new Rect(); |
| 143 | mAdaptiveIconScale = SCALE_NOT_INITIALIZED; |
| 144 | |
| 145 | // Shadow generator init |
| 146 | mDefaultBlurMaskFilter = new BlurMaskFilter(iconBitmapSize * BLUR_FACTOR, |
| 147 | Blur.NORMAL); |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * Sets the background color used for wrapped adaptive icon |
| 152 | * |
| 153 | * @deprecated Do not use, functionality will be replaced by iconloader lib eventually. |
| 154 | */ |
| 155 | @Deprecated |
| 156 | void setWrapperBackgroundColor(int color) { |
| 157 | mWrapperBackgroundColor = (Color.alpha(color) < 255) ? DEFAULT_WRAPPER_BACKGROUND : color; |
| 158 | } |
| 159 | |
| 160 | /** |
| 161 | * Creates bitmap using the source drawable and various parameters. |
| 162 | * The bitmap is visually normalized with other icons and has enough spacing to add shadow. |
Mike Digman | b2e5e71 | 2019-04-19 15:49:10 -0700 | [diff] [blame] | 163 | * Note: this method has been modified from iconloaderlib to remove a profile diff check. |
Mike Digman | 220587e | 2019-03-13 11:21:42 -0700 | [diff] [blame] | 164 | * |
| 165 | * @param icon source of the icon associated with a user that has no badge, |
| 166 | * likely user 0 |
| 167 | * @param user info can be used for a badge |
| 168 | * @return a bitmap suitable for disaplaying as an icon at various system UIs. |
| 169 | * |
| 170 | * @deprecated Do not use, functionality will be replaced by iconloader lib eventually. |
| 171 | */ |
| 172 | @Deprecated |
| 173 | Bitmap createUserBadgedIconBitmap(@Nullable Drawable icon, UserHandle user) { |
| 174 | float [] scale = new float[1]; |
| 175 | |
| 176 | // If no icon is provided use the system default |
| 177 | if (icon == null) { |
| 178 | icon = getFullResDefaultActivityIcon(mFillResIconDpi); |
| 179 | } |
| 180 | icon = normalizeAndWrapToAdaptiveIcon(icon, null, scale); |
| 181 | Bitmap bitmap = createIconBitmap(icon, scale[0]); |
| 182 | if (icon instanceof AdaptiveIconDrawable) { |
| 183 | mCanvas.setBitmap(bitmap); |
| 184 | recreateIcon(Bitmap.createBitmap(bitmap), mCanvas); |
| 185 | mCanvas.setBitmap(null); |
| 186 | } |
| 187 | |
| 188 | final Bitmap result; |
Mike Digman | b2e5e71 | 2019-04-19 15:49:10 -0700 | [diff] [blame] | 189 | if (user != null /* if modification from iconloaderlib */) { |
Mike Digman | 220587e | 2019-03-13 11:21:42 -0700 | [diff] [blame] | 190 | BitmapDrawable drawable = new FixedSizeBitmapDrawable(bitmap); |
| 191 | Drawable badged = mPm.getUserBadgedIcon(drawable, user); |
| 192 | if (badged instanceof BitmapDrawable) { |
| 193 | result = ((BitmapDrawable) badged).getBitmap(); |
| 194 | } else { |
| 195 | result = createIconBitmap(badged, 1f); |
| 196 | } |
| 197 | } else { |
| 198 | result = bitmap; |
| 199 | } |
| 200 | |
| 201 | return result; |
| 202 | } |
| 203 | |
| 204 | /** |
| 205 | * Creates bitmap using the source drawable and flattened pre-rendered app icon. |
| 206 | * The bitmap is visually normalized with other icons and has enough spacing to add shadow. |
Mike Digman | 6f31c53 | 2019-04-12 10:02:49 -0700 | [diff] [blame] | 207 | * This is custom functionality added to Iconloaderlib that will need to be ported. |
Mike Digman | 220587e | 2019-03-13 11:21:42 -0700 | [diff] [blame] | 208 | * |
| 209 | * @param icon source of the icon associated with a user that has no badge |
| 210 | * @param renderedAppIcon pre-rendered app icon to use as a badge, likely the output |
| 211 | * of createUserBadgedIconBitmap for user 0 |
| 212 | * @return a bitmap suitable for disaplaying as an icon at various system UIs. |
| 213 | * |
| 214 | * @deprecated Do not use, functionality will be replaced by iconloader lib eventually. |
| 215 | */ |
| 216 | @Deprecated |
Mike Digman | 9c4ae50 | 2019-03-19 17:02:25 -0700 | [diff] [blame] | 217 | Bitmap createAppBadgedIconBitmap(@Nullable Drawable icon, Bitmap renderedAppIcon) { |
Mike Digman | 220587e | 2019-03-13 11:21:42 -0700 | [diff] [blame] | 218 | // If no icon is provided use the system default |
| 219 | if (icon == null) { |
| 220 | icon = getFullResDefaultActivityIcon(mFillResIconDpi); |
| 221 | } |
Mike Digman | 6f31c53 | 2019-04-12 10:02:49 -0700 | [diff] [blame] | 222 | |
| 223 | // Direct share icons cannot be adaptive, most will arrive as bitmaps. To get reliable |
| 224 | // presentation, force all DS icons to be circular. Scale DS image so it completely fills. |
| 225 | int w = icon.getIntrinsicWidth(); |
| 226 | int h = icon.getIntrinsicHeight(); |
| 227 | float scale = 1; |
| 228 | if (h > w && w > 0) { |
| 229 | scale = (float) h / w; |
| 230 | } else if (w > h && h > 0) { |
| 231 | scale = (float) w / h; |
| 232 | } |
| 233 | Bitmap bitmap = createIconBitmap(icon, scale); |
| 234 | bitmap = maskBitmapToCircle(bitmap); |
| 235 | icon = new BitmapDrawable(mContext.getResources(), bitmap); |
| 236 | |
| 237 | // We now have a circular masked and scaled icon, inset and apply shadow |
| 238 | scale = getScale(icon, null); |
| 239 | bitmap = createIconBitmap(icon, scale); |
| 240 | |
| 241 | mCanvas.setBitmap(bitmap); |
| 242 | recreateIcon(Bitmap.createBitmap(bitmap), mCanvas); |
| 243 | |
| 244 | if (renderedAppIcon != null) { |
| 245 | // Now scale down and apply the badge to the bottom right corner of the flattened icon |
| 246 | renderedAppIcon = Bitmap.createScaledBitmap(renderedAppIcon, mBadgeBitmapSize, |
| 247 | mBadgeBitmapSize, false); |
| 248 | |
| 249 | // Paint the provided badge on top of the flattened icon |
| 250 | mCanvas.drawBitmap(renderedAppIcon, mIconBitmapSize - mBadgeBitmapSize, |
| 251 | mIconBitmapSize - mBadgeBitmapSize, null); |
Mike Digman | 220587e | 2019-03-13 11:21:42 -0700 | [diff] [blame] | 252 | } |
| 253 | |
Mike Digman | 220587e | 2019-03-13 11:21:42 -0700 | [diff] [blame] | 254 | mCanvas.setBitmap(null); |
| 255 | |
| 256 | return bitmap; |
| 257 | } |
| 258 | |
Mike Digman | 6f31c53 | 2019-04-12 10:02:49 -0700 | [diff] [blame] | 259 | private Bitmap maskBitmapToCircle(Bitmap bitmap) { |
| 260 | final Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), |
| 261 | bitmap.getHeight(), Bitmap.Config.ARGB_8888); |
| 262 | final Canvas canvas = new Canvas(output); |
| 263 | final Paint paint = new Paint(); |
| 264 | paint.setAntiAlias(true); |
| 265 | |
| 266 | // Draw mask |
| 267 | paint.setColor(0xffffffff); |
| 268 | canvas.drawARGB(0, 0, 0, 0); |
| 269 | canvas.drawCircle(bitmap.getWidth() / 2f, |
| 270 | bitmap.getHeight() / 2f, |
| 271 | bitmap.getWidth() / 2f - 1 /* -1 to avoid circles with flat sides */, |
| 272 | paint); |
| 273 | |
| 274 | // Draw masked bitmap |
| 275 | paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN)); |
| 276 | final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight()); |
| 277 | canvas.drawBitmap(bitmap, rect, rect, paint); |
| 278 | |
| 279 | return output; |
| 280 | } |
| 281 | |
Mike Digman | 220587e | 2019-03-13 11:21:42 -0700 | [diff] [blame] | 282 | private static Drawable getFullResDefaultActivityIcon(int iconDpi) { |
| 283 | return Resources.getSystem().getDrawableForDensity(android.R.mipmap.sym_def_app_icon, |
| 284 | iconDpi); |
| 285 | } |
| 286 | |
| 287 | private Bitmap createIconBitmap(Drawable icon, float scale) { |
| 288 | return createIconBitmap(icon, scale, mIconBitmapSize); |
| 289 | } |
| 290 | |
| 291 | /** |
| 292 | * @param icon drawable that should be flattened to a bitmap |
| 293 | * @param scale the scale to apply before drawing {@param icon} on the canvas |
| 294 | */ |
| 295 | private Bitmap createIconBitmap(Drawable icon, float scale, int size) { |
| 296 | Bitmap bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888); |
| 297 | |
| 298 | mCanvas.setBitmap(bitmap); |
| 299 | mOldBounds.set(icon.getBounds()); |
| 300 | |
| 301 | if (icon instanceof AdaptiveIconDrawable) { |
| 302 | int offset = Math.max((int) Math.ceil(BLUR_FACTOR * size), |
| 303 | Math.round(size * (1 - scale) / 2)); |
| 304 | icon.setBounds(offset, offset, size - offset, size - offset); |
| 305 | icon.draw(mCanvas); |
| 306 | } else { |
| 307 | if (icon instanceof BitmapDrawable) { |
| 308 | BitmapDrawable bitmapDrawable = (BitmapDrawable) icon; |
| 309 | Bitmap b = bitmapDrawable.getBitmap(); |
| 310 | if (bitmap != null && b.getDensity() == Bitmap.DENSITY_NONE) { |
| 311 | bitmapDrawable.setTargetDensity(mContext.getResources().getDisplayMetrics()); |
| 312 | } |
| 313 | } |
| 314 | int width = size; |
| 315 | int height = size; |
| 316 | |
| 317 | int intrinsicWidth = icon.getIntrinsicWidth(); |
| 318 | int intrinsicHeight = icon.getIntrinsicHeight(); |
| 319 | if (intrinsicWidth > 0 && intrinsicHeight > 0) { |
| 320 | // Scale the icon proportionally to the icon dimensions |
| 321 | final float ratio = (float) intrinsicWidth / intrinsicHeight; |
| 322 | if (intrinsicWidth > intrinsicHeight) { |
| 323 | height = (int) (width / ratio); |
| 324 | } else if (intrinsicHeight > intrinsicWidth) { |
| 325 | width = (int) (height * ratio); |
| 326 | } |
| 327 | } |
| 328 | final int left = (size - width) / 2; |
| 329 | final int top = (size - height) / 2; |
| 330 | icon.setBounds(left, top, left + width, top + height); |
| 331 | mCanvas.save(); |
| 332 | mCanvas.scale(scale, scale, size / 2, size / 2); |
| 333 | icon.draw(mCanvas); |
| 334 | mCanvas.restore(); |
| 335 | |
| 336 | } |
| 337 | |
| 338 | icon.setBounds(mOldBounds); |
| 339 | mCanvas.setBitmap(null); |
| 340 | return bitmap; |
| 341 | } |
| 342 | |
| 343 | private Drawable normalizeAndWrapToAdaptiveIcon(Drawable icon, RectF outIconBounds, |
| 344 | float[] outScale) { |
| 345 | float scale = 1f; |
| 346 | |
| 347 | if (mWrapperIcon == null) { |
| 348 | mWrapperIcon = mContext.getDrawable( |
| 349 | R.drawable.iconfactory_adaptive_icon_drawable_wrapper).mutate(); |
| 350 | } |
| 351 | |
| 352 | AdaptiveIconDrawable dr = (AdaptiveIconDrawable) mWrapperIcon; |
| 353 | dr.setBounds(0, 0, 1, 1); |
| 354 | scale = getScale(icon, outIconBounds); |
| 355 | if (!(icon instanceof AdaptiveIconDrawable)) { |
| 356 | FixedScaleDrawable fsd = ((FixedScaleDrawable) dr.getForeground()); |
| 357 | fsd.setDrawable(icon); |
| 358 | fsd.setScale(scale); |
| 359 | icon = dr; |
| 360 | scale = getScale(icon, outIconBounds); |
| 361 | |
| 362 | ((ColorDrawable) dr.getBackground()).setColor(mWrapperBackgroundColor); |
| 363 | } |
| 364 | |
| 365 | outScale[0] = scale; |
| 366 | return icon; |
| 367 | } |
| 368 | |
| 369 | |
| 370 | /* Normalization block */ |
| 371 | |
| 372 | private static final float SCALE_NOT_INITIALIZED = 0; |
| 373 | // Ratio of icon visible area to full icon size for a square shaped icon |
| 374 | private static final float MAX_SQUARE_AREA_FACTOR = 375.0f / 576; |
| 375 | // Ratio of icon visible area to full icon size for a circular shaped icon |
| 376 | private static final float MAX_CIRCLE_AREA_FACTOR = 380.0f / 576; |
| 377 | |
| 378 | private static final float CIRCLE_AREA_BY_RECT = (float) Math.PI / 4; |
| 379 | |
| 380 | // Slope used to calculate icon visible area to full icon size for any generic shaped icon. |
| 381 | private static final float LINEAR_SCALE_SLOPE = |
| 382 | (MAX_CIRCLE_AREA_FACTOR - MAX_SQUARE_AREA_FACTOR) / (1 - CIRCLE_AREA_BY_RECT); |
| 383 | |
| 384 | private static final int MIN_VISIBLE_ALPHA = 40; |
| 385 | |
| 386 | private float mAdaptiveIconScale; |
| 387 | private final Rect mAdaptiveIconBounds; |
| 388 | private final Rect mBounds; |
| 389 | private final int mMaxSize; |
| 390 | private final byte[] mPixels; |
| 391 | private final float[] mLeftBorder; |
| 392 | private final float[] mRightBorder; |
| 393 | private final Bitmap mBitmap; |
| 394 | private final Canvas mScaleCheckCanvas; |
| 395 | |
| 396 | /** |
| 397 | * Returns the amount by which the {@param d} should be scaled (in both dimensions) so that it |
| 398 | * matches the design guidelines for a launcher icon. |
| 399 | * |
| 400 | * We first calculate the convex hull of the visible portion of the icon. |
| 401 | * This hull then compared with the bounding rectangle of the hull to find how closely it |
| 402 | * resembles a circle and a square, by comparing the ratio of the areas. Note that this is not |
| 403 | * an ideal solution but it gives satisfactory result without affecting the performance. |
| 404 | * |
| 405 | * This closeness is used to determine the ratio of hull area to the full icon size. |
| 406 | * Refer {@link #MAX_CIRCLE_AREA_FACTOR} and {@link #MAX_SQUARE_AREA_FACTOR} |
| 407 | * |
| 408 | * @param outBounds optional rect to receive the fraction distance from each edge. |
| 409 | */ |
| 410 | private synchronized float getScale(@NonNull Drawable d, @Nullable RectF outBounds) { |
| 411 | if (d instanceof AdaptiveIconDrawable) { |
| 412 | if (mAdaptiveIconScale != SCALE_NOT_INITIALIZED) { |
| 413 | if (outBounds != null) { |
| 414 | outBounds.set(mAdaptiveIconBounds); |
| 415 | } |
| 416 | return mAdaptiveIconScale; |
| 417 | } |
| 418 | } |
| 419 | int width = d.getIntrinsicWidth(); |
| 420 | int height = d.getIntrinsicHeight(); |
| 421 | if (width <= 0 || height <= 0) { |
| 422 | width = width <= 0 || width > mMaxSize ? mMaxSize : width; |
| 423 | height = height <= 0 || height > mMaxSize ? mMaxSize : height; |
| 424 | } else if (width > mMaxSize || height > mMaxSize) { |
| 425 | int max = Math.max(width, height); |
| 426 | width = mMaxSize * width / max; |
| 427 | height = mMaxSize * height / max; |
| 428 | } |
| 429 | |
| 430 | mBitmap.eraseColor(Color.TRANSPARENT); |
| 431 | d.setBounds(0, 0, width, height); |
| 432 | d.draw(mScaleCheckCanvas); |
| 433 | |
| 434 | ByteBuffer buffer = ByteBuffer.wrap(mPixels); |
| 435 | buffer.rewind(); |
| 436 | mBitmap.copyPixelsToBuffer(buffer); |
| 437 | |
| 438 | // Overall bounds of the visible icon. |
| 439 | int topY = -1; |
| 440 | int bottomY = -1; |
| 441 | int leftX = mMaxSize + 1; |
| 442 | int rightX = -1; |
| 443 | |
| 444 | // Create border by going through all pixels one row at a time and for each row find |
| 445 | // the first and the last non-transparent pixel. Set those values to mLeftBorder and |
| 446 | // mRightBorder and use -1 if there are no visible pixel in the row. |
| 447 | |
| 448 | // buffer position |
| 449 | int index = 0; |
| 450 | // buffer shift after every row, width of buffer = mMaxSize |
| 451 | int rowSizeDiff = mMaxSize - width; |
| 452 | // first and last position for any row. |
| 453 | int firstX, lastX; |
| 454 | |
| 455 | for (int y = 0; y < height; y++) { |
| 456 | firstX = lastX = -1; |
| 457 | for (int x = 0; x < width; x++) { |
| 458 | if ((mPixels[index] & 0xFF) > MIN_VISIBLE_ALPHA) { |
| 459 | if (firstX == -1) { |
| 460 | firstX = x; |
| 461 | } |
| 462 | lastX = x; |
| 463 | } |
| 464 | index++; |
| 465 | } |
| 466 | index += rowSizeDiff; |
| 467 | |
| 468 | mLeftBorder[y] = firstX; |
| 469 | mRightBorder[y] = lastX; |
| 470 | |
| 471 | // If there is at least one visible pixel, update the overall bounds. |
| 472 | if (firstX != -1) { |
| 473 | bottomY = y; |
| 474 | if (topY == -1) { |
| 475 | topY = y; |
| 476 | } |
| 477 | |
| 478 | leftX = Math.min(leftX, firstX); |
| 479 | rightX = Math.max(rightX, lastX); |
| 480 | } |
| 481 | } |
| 482 | |
| 483 | if (topY == -1 || rightX == -1) { |
| 484 | // No valid pixels found. Do not scale. |
| 485 | return 1; |
| 486 | } |
| 487 | |
| 488 | convertToConvexArray(mLeftBorder, 1, topY, bottomY); |
| 489 | convertToConvexArray(mRightBorder, -1, topY, bottomY); |
| 490 | |
| 491 | // Area of the convex hull |
| 492 | float area = 0; |
| 493 | for (int y = 0; y < height; y++) { |
| 494 | if (mLeftBorder[y] <= -1) { |
| 495 | continue; |
| 496 | } |
| 497 | area += mRightBorder[y] - mLeftBorder[y] + 1; |
| 498 | } |
| 499 | |
| 500 | // Area of the rectangle required to fit the convex hull |
| 501 | float rectArea = (bottomY + 1 - topY) * (rightX + 1 - leftX); |
| 502 | float hullByRect = area / rectArea; |
| 503 | |
| 504 | float scaleRequired; |
| 505 | if (hullByRect < CIRCLE_AREA_BY_RECT) { |
| 506 | scaleRequired = MAX_CIRCLE_AREA_FACTOR; |
| 507 | } else { |
| 508 | scaleRequired = MAX_SQUARE_AREA_FACTOR + LINEAR_SCALE_SLOPE * (1 - hullByRect); |
| 509 | } |
| 510 | mBounds.left = leftX; |
| 511 | mBounds.right = rightX; |
| 512 | |
| 513 | mBounds.top = topY; |
| 514 | mBounds.bottom = bottomY; |
| 515 | |
| 516 | if (outBounds != null) { |
| 517 | outBounds.set(((float) mBounds.left) / width, ((float) mBounds.top) / height, |
| 518 | 1 - ((float) mBounds.right) / width, |
| 519 | 1 - ((float) mBounds.bottom) / height); |
| 520 | } |
| 521 | float areaScale = area / (width * height); |
| 522 | // Use sqrt of the final ratio as the images is scaled across both width and height. |
| 523 | float scale = areaScale > scaleRequired ? (float) Math.sqrt(scaleRequired / areaScale) : 1; |
| 524 | if (d instanceof AdaptiveIconDrawable && mAdaptiveIconScale == SCALE_NOT_INITIALIZED) { |
| 525 | mAdaptiveIconScale = scale; |
| 526 | mAdaptiveIconBounds.set(mBounds); |
| 527 | } |
| 528 | return scale; |
| 529 | } |
| 530 | |
| 531 | /** |
| 532 | * Modifies {@param xCoordinates} to represent a convex border. Fills in all missing values |
| 533 | * (except on either ends) with appropriate values. |
| 534 | * @param xCoordinates map of x coordinate per y. |
| 535 | * @param direction 1 for left border and -1 for right border. |
| 536 | * @param topY the first Y position (inclusive) with a valid value. |
| 537 | * @param bottomY the last Y position (inclusive) with a valid value. |
| 538 | */ |
| 539 | private static void convertToConvexArray( |
| 540 | float[] xCoordinates, int direction, int topY, int bottomY) { |
| 541 | int total = xCoordinates.length; |
| 542 | // The tangent at each pixel. |
| 543 | float[] angles = new float[total - 1]; |
| 544 | |
| 545 | int first = topY; // First valid y coordinate |
| 546 | int last = -1; // Last valid y coordinate which didn't have a missing value |
| 547 | |
| 548 | float lastAngle = Float.MAX_VALUE; |
| 549 | |
| 550 | for (int i = topY + 1; i <= bottomY; i++) { |
| 551 | if (xCoordinates[i] <= -1) { |
| 552 | continue; |
| 553 | } |
| 554 | int start; |
| 555 | |
| 556 | if (lastAngle == Float.MAX_VALUE) { |
| 557 | start = first; |
| 558 | } else { |
| 559 | float currentAngle = (xCoordinates[i] - xCoordinates[last]) / (i - last); |
| 560 | start = last; |
| 561 | // If this position creates a concave angle, keep moving up until we find a |
| 562 | // position which creates a convex angle. |
| 563 | if ((currentAngle - lastAngle) * direction < 0) { |
| 564 | while (start > first) { |
| 565 | start--; |
| 566 | currentAngle = (xCoordinates[i] - xCoordinates[start]) / (i - start); |
| 567 | if ((currentAngle - angles[start]) * direction >= 0) { |
| 568 | break; |
| 569 | } |
| 570 | } |
| 571 | } |
| 572 | } |
| 573 | |
| 574 | // Reset from last check |
| 575 | lastAngle = (xCoordinates[i] - xCoordinates[start]) / (i - start); |
| 576 | // Update all the points from start. |
| 577 | for (int j = start; j < i; j++) { |
| 578 | angles[j] = lastAngle; |
| 579 | xCoordinates[j] = xCoordinates[start] + lastAngle * (j - start); |
| 580 | } |
| 581 | last = i; |
| 582 | } |
| 583 | } |
| 584 | |
| 585 | /* Shadow generator block */ |
| 586 | |
| 587 | private static final float KEY_SHADOW_DISTANCE = 1f / 48; |
| 588 | private static final int KEY_SHADOW_ALPHA = 61; |
| 589 | private static final int AMBIENT_SHADOW_ALPHA = 30; |
| 590 | |
| 591 | private Paint mBlurPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG); |
| 592 | private Paint mDrawPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG); |
| 593 | private BlurMaskFilter mDefaultBlurMaskFilter; |
| 594 | |
| 595 | private synchronized void recreateIcon(Bitmap icon, Canvas out) { |
| 596 | recreateIcon(icon, mDefaultBlurMaskFilter, AMBIENT_SHADOW_ALPHA, KEY_SHADOW_ALPHA, out); |
| 597 | } |
| 598 | |
| 599 | private synchronized void recreateIcon(Bitmap icon, BlurMaskFilter blurMaskFilter, |
| 600 | int ambientAlpha, int keyAlpha, Canvas out) { |
| 601 | int[] offset = new int[2]; |
| 602 | mBlurPaint.setMaskFilter(blurMaskFilter); |
| 603 | Bitmap shadow = icon.extractAlpha(mBlurPaint, offset); |
| 604 | |
| 605 | // Draw ambient shadow |
| 606 | mDrawPaint.setAlpha(ambientAlpha); |
| 607 | out.drawBitmap(shadow, offset[0], offset[1], mDrawPaint); |
| 608 | |
| 609 | // Draw key shadow |
| 610 | mDrawPaint.setAlpha(keyAlpha); |
| 611 | out.drawBitmap(shadow, offset[0], offset[1] + KEY_SHADOW_DISTANCE * mIconBitmapSize, |
| 612 | mDrawPaint); |
| 613 | |
| 614 | // Draw the icon |
| 615 | mDrawPaint.setAlpha(255); // TODO if b/128609682 not fixed by launch use .setAlpha(254) |
| 616 | out.drawBitmap(icon, 0, 0, mDrawPaint); |
| 617 | } |
| 618 | |
| 619 | /* Classes */ |
| 620 | |
| 621 | /** |
| 622 | * Extension of {@link DrawableWrapper} which scales the child drawables by a fixed amount. |
| 623 | */ |
| 624 | public static class FixedScaleDrawable extends DrawableWrapper { |
| 625 | |
| 626 | private static final float LEGACY_ICON_SCALE = .7f * .6667f; |
| 627 | private float mScaleX, mScaleY; |
| 628 | |
| 629 | public FixedScaleDrawable() { |
| 630 | super(new ColorDrawable()); |
| 631 | mScaleX = LEGACY_ICON_SCALE; |
| 632 | mScaleY = LEGACY_ICON_SCALE; |
| 633 | } |
| 634 | |
| 635 | @Override |
| 636 | public void draw(@NonNull Canvas canvas) { |
| 637 | int saveCount = canvas.save(); |
| 638 | canvas.scale(mScaleX, mScaleY, |
| 639 | getBounds().exactCenterX(), getBounds().exactCenterY()); |
| 640 | super.draw(canvas); |
| 641 | canvas.restoreToCount(saveCount); |
| 642 | } |
| 643 | |
| 644 | @Override |
| 645 | public void inflate(Resources r, XmlPullParser parser, AttributeSet attrs) { } |
| 646 | |
| 647 | @Override |
| 648 | public void inflate(Resources r, XmlPullParser parser, AttributeSet attrs, Theme theme) { } |
| 649 | |
| 650 | /** |
| 651 | * Sets the scale associated with this drawable |
| 652 | * @param scale |
| 653 | */ |
| 654 | public void setScale(float scale) { |
| 655 | float h = getIntrinsicHeight(); |
| 656 | float w = getIntrinsicWidth(); |
| 657 | mScaleX = scale * LEGACY_ICON_SCALE; |
| 658 | mScaleY = scale * LEGACY_ICON_SCALE; |
| 659 | if (h > w && w > 0) { |
| 660 | mScaleX *= w / h; |
| 661 | } else if (w > h && h > 0) { |
| 662 | mScaleY *= h / w; |
| 663 | } |
| 664 | } |
| 665 | } |
| 666 | |
| 667 | /** |
| 668 | * An extension of {@link BitmapDrawable} which returns the bitmap pixel size as intrinsic size. |
| 669 | * This allows the badging to be done based on the action bitmap size rather than |
| 670 | * the scaled bitmap size. |
| 671 | */ |
| 672 | private static class FixedSizeBitmapDrawable extends BitmapDrawable { |
| 673 | |
| 674 | FixedSizeBitmapDrawable(Bitmap bitmap) { |
| 675 | super(null, bitmap); |
| 676 | } |
| 677 | |
| 678 | @Override |
| 679 | public int getIntrinsicHeight() { |
| 680 | return getBitmap().getWidth(); |
| 681 | } |
| 682 | |
| 683 | @Override |
| 684 | public int getIntrinsicWidth() { |
| 685 | return getBitmap().getWidth(); |
| 686 | } |
| 687 | } |
| 688 | |
| 689 | } |