1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 5 * in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the License 10 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express 11 * or implied. See the License for the specific language governing permissions and limitations under 12 * the License. 13 */ 14 15 package android.graphics.drawable; 16 17 import android.annotation.NonNull; 18 import android.content.res.ColorStateList; 19 import android.content.res.Resources; 20 import android.content.res.Resources.Theme; 21 import android.content.res.TypedArray; 22 import android.graphics.Bitmap; 23 import android.graphics.Canvas; 24 import android.graphics.Color; 25 import android.graphics.ColorFilter; 26 import android.graphics.Matrix; 27 import android.graphics.Paint; 28 import android.graphics.Path; 29 import android.graphics.PathMeasure; 30 import android.graphics.PixelFormat; 31 import android.graphics.PorterDuffColorFilter; 32 import android.graphics.Rect; 33 import android.graphics.Region; 34 import android.graphics.PorterDuff.Mode; 35 import android.util.ArrayMap; 36 import android.util.AttributeSet; 37 import android.util.LayoutDirection; 38 import android.util.Log; 39 import android.util.PathParser; 40 import android.util.Xml; 41 42 import com.android.internal.R; 43 44 import org.xmlpull.v1.XmlPullParser; 45 import org.xmlpull.v1.XmlPullParserException; 46 47 import java.io.IOException; 48 import java.util.ArrayList; 49 import java.util.Stack; 50 51 /** 52 * This lets you create a drawable based on an XML vector graphic. It can be 53 * defined in an XML file with the <code><vector></code> element. 54 * <p/> 55 * The vector drawable has the following elements: 56 * <p/> 57 * <dt><code><vector></code></dt> 58 * <dl> 59 * <dd>Used to defined a vector drawable 60 * <dl> 61 * <dt><code>android:name</code></dt> 62 * <dd>Defines the name of this vector drawable.</dd> 63 * <dt><code>android:width</code></dt> 64 * <dd>Used to defined the intrinsic width of the drawable. 65 * This support all the dimension units, normally specified with dp.</dd> 66 * <dt><code>android:height</code></dt> 67 * <dd>Used to defined the intrinsic height the drawable. 68 * This support all the dimension units, normally specified with dp.</dd> 69 * <dt><code>android:viewportWidth</code></dt> 70 * <dd>Used to defined the width of the viewport space. Viewport is basically 71 * the virtual canvas where the paths are drawn on.</dd> 72 * <dt><code>android:viewportHeight</code></dt> 73 * <dd>Used to defined the height of the viewport space. Viewport is basically 74 * the virtual canvas where the paths are drawn on.</dd> 75 * <dt><code>android:tint</code></dt> 76 * <dd>The color to apply to the drawable as a tint. By default, no tint is applied.</dd> 77 * <dt><code>android:tintMode</code></dt> 78 * <dd>The Porter-Duff blending mode for the tint color. The default value is src_in.</dd> 79 * <dt><code>android:autoMirrored</code></dt> 80 * <dd>Indicates if the drawable needs to be mirrored when its layout direction is 81 * RTL (right-to-left).</dd> 82 * <dt><code>android:alpha</code></dt> 83 * <dd>The opacity of this drawable.</dd> 84 * </dl></dd> 85 * </dl> 86 * 87 * <dl> 88 * <dt><code><group></code></dt> 89 * <dd>Defines a group of paths or subgroups, plus transformation information. 90 * The transformations are defined in the same coordinates as the viewport. 91 * And the transformations are applied in the order of scale, rotate then translate. 92 * <dl> 93 * <dt><code>android:name</code></dt> 94 * <dd>Defines the name of the group.</dd> 95 * <dt><code>android:rotation</code></dt> 96 * <dd>The degrees of rotation of the group.</dd> 97 * <dt><code>android:pivotX</code></dt> 98 * <dd>The X coordinate of the pivot for the scale and rotation of the group. 99 * This is defined in the viewport space.</dd> 100 * <dt><code>android:pivotY</code></dt> 101 * <dd>The Y coordinate of the pivot for the scale and rotation of the group. 102 * This is defined in the viewport space.</dd> 103 * <dt><code>android:scaleX</code></dt> 104 * <dd>The amount of scale on the X Coordinate.</dd> 105 * <dt><code>android:scaleY</code></dt> 106 * <dd>The amount of scale on the Y coordinate.</dd> 107 * <dt><code>android:translateX</code></dt> 108 * <dd>The amount of translation on the X coordinate. 109 * This is defined in the viewport space.</dd> 110 * <dt><code>android:translateY</code></dt> 111 * <dd>The amount of translation on the Y coordinate. 112 * This is defined in the viewport space.</dd> 113 * </dl></dd> 114 * </dl> 115 * 116 * <dl> 117 * <dt><code><path></code></dt> 118 * <dd>Defines paths to be drawn. 119 * <dl> 120 * <dt><code>android:name</code></dt> 121 * <dd>Defines the name of the path.</dd> 122 * <dt><code>android:pathData</code></dt> 123 * <dd>Defines path string. This is using exactly same format as "d" attribute 124 * in the SVG's path data. This is defined in the viewport space.</dd> 125 * <dt><code>android:fillColor</code></dt> 126 * <dd>Defines the color to fill the path (none if not present).</dd> 127 * <dt><code>android:strokeColor</code></dt> 128 * <dd>Defines the color to draw the path outline (none if not present).</dd> 129 * <dt><code>android:strokeWidth</code></dt> 130 * <dd>The width a path stroke.</dd> 131 * <dt><code>android:strokeAlpha</code></dt> 132 * <dd>The opacity of a path stroke.</dd> 133 * <dt><code>android:fillAlpha</code></dt> 134 * <dd>The opacity to fill the path with.</dd> 135 * <dt><code>android:trimPathStart</code></dt> 136 * <dd>The fraction of the path to trim from the start, in the range from 0 to 1.</dd> 137 * <dt><code>android:trimPathEnd</code></dt> 138 * <dd>The fraction of the path to trim from the end, in the range from 0 to 1.</dd> 139 * <dt><code>android:trimPathOffset</code></dt> 140 * <dd>Shift trim region (allows showed region to include the start and end), in the range 141 * from 0 to 1.</dd> 142 * <dt><code>android:strokeLineCap</code></dt> 143 * <dd>Sets the linecap for a stroked path: butt, round, square.</dd> 144 * <dt><code>android:strokeLineJoin</code></dt> 145 * <dd>Sets the lineJoin for a stroked path: miter,round,bevel.</dd> 146 * <dt><code>android:strokeMiterLimit</code></dt> 147 * <dd>Sets the Miter limit for a stroked path.</dd> 148 * </dl></dd> 149 * </dl> 150 * 151 * <dl> 152 * <dt><code><clip-path></code></dt> 153 * <dd>Defines path to be the current clip. 154 * <dl> 155 * <dt><code>android:name</code></dt> 156 * <dd>Defines the name of the clip path.</dd> 157 * <dt><code>android:pathData</code></dt> 158 * <dd>Defines clip path string. This is using exactly same format as "d" attribute 159 * in the SVG's path data.</dd> 160 * </dl></dd> 161 * </dl> 162 * <li>Here is a simple VectorDrawable in this vectordrawable.xml file. 163 * <pre> 164 * <vector xmlns:android="http://schemas.android.com/apk/res/android"; 165 * android:height="64dp" 166 * android:width="64dp" 167 * android:viewportHeight="600" 168 * android:viewportWidth="600" > 169 * <group 170 * android:name="rotationGroup" 171 * android:pivotX="300.0" 172 * android:pivotY="300.0" 173 * android:rotation="45.0" > 174 * <path 175 * android:name="v" 176 * android:fillColor="#000000" 177 * android:pathData="M300,70 l 0,-70 70,70 0,0 -70,70z" /> 178 * </group> 179 * </vector> 180 * </pre></li> 181 */ 182 183 public class VectorDrawable extends Drawable { 184 private static final String LOGTAG = VectorDrawable.class.getSimpleName(); 185 186 private static final String SHAPE_CLIP_PATH = "clip-path"; 187 private static final String SHAPE_GROUP = "group"; 188 private static final String SHAPE_PATH = "path"; 189 private static final String SHAPE_VECTOR = "vector"; 190 191 private static final int LINECAP_BUTT = 0; 192 private static final int LINECAP_ROUND = 1; 193 private static final int LINECAP_SQUARE = 2; 194 195 private static final int LINEJOIN_MITER = 0; 196 private static final int LINEJOIN_ROUND = 1; 197 private static final int LINEJOIN_BEVEL = 2; 198 199 private static final boolean DBG_VECTOR_DRAWABLE = false; 200 201 private VectorDrawableState mVectorState; 202 203 private PorterDuffColorFilter mTintFilter; 204 private ColorFilter mColorFilter; 205 206 private boolean mMutated; 207 208 // AnimatedVectorDrawable needs to turn off the cache all the time, otherwise, 209 // caching the bitmap by default is allowed. 210 private boolean mAllowCaching = true; 211 212 public VectorDrawable() { 213 mVectorState = new VectorDrawableState(); 214 } 215 216 private VectorDrawable(@NonNull VectorDrawableState state) { 217 mVectorState = state; 218 mTintFilter = updateTintFilter(mTintFilter, state.mTint, state.mTintMode); 219 } 220 221 @Override 222 public Drawable mutate() { 223 if (!mMutated && super.mutate() == this) { 224 mVectorState = new VectorDrawableState(mVectorState); 225 mMutated = true; 226 } 227 return this; 228 } 229 230 /** 231 * @hide 232 */ 233 public void clearMutated() { 234 super.clearMutated(); 235 mMutated = false; 236 } 237 238 Object getTargetByName(String name) { 239 return mVectorState.mVPathRenderer.mVGTargetsMap.get(name); 240 } 241 242 @Override 243 public ConstantState getConstantState() { 244 mVectorState.mChangingConfigurations = getChangingConfigurations(); 245 return mVectorState; 246 } 247 248 @Override 249 public void draw(Canvas canvas) { 250 final Rect bounds = getBounds(); 251 if (bounds.width() == 0 || bounds.height() == 0) { 252 // too small to draw 253 return; 254 } 255 256 final int saveCount = canvas.save(); 257 final boolean needMirroring = needMirroring(); 258 259 canvas.translate(bounds.left, bounds.top); 260 if (needMirroring) { 261 canvas.translate(bounds.width(), 0); 262 canvas.scale(-1.0f, 1.0f); 263 } 264 265 // Color filters always override tint filters. 266 final ColorFilter colorFilter = mColorFilter == null ? mTintFilter : mColorFilter; 267 268 if (!mAllowCaching) { 269 // AnimatedVectorDrawable 270 if (!mVectorState.hasTranslucentRoot()) { 271 mVectorState.mVPathRenderer.draw( 272 canvas, bounds.width(), bounds.height(), colorFilter); 273 } else { 274 mVectorState.createCachedBitmapIfNeeded(bounds); 275 mVectorState.updateCachedBitmap(bounds); 276 mVectorState.drawCachedBitmapWithRootAlpha(canvas, colorFilter); 277 } 278 } else { 279 // Static Vector Drawable case. 280 mVectorState.createCachedBitmapIfNeeded(bounds); 281 if (!mVectorState.canReuseCache()) { 282 mVectorState.updateCachedBitmap(bounds); 283 mVectorState.updateCacheStates(); 284 } 285 mVectorState.drawCachedBitmapWithRootAlpha(canvas, colorFilter); 286 } 287 288 canvas.restoreToCount(saveCount); 289 } 290 291 @Override 292 public int getAlpha() { 293 return mVectorState.mVPathRenderer.getRootAlpha(); 294 } 295 296 @Override 297 public void setAlpha(int alpha) { 298 if (mVectorState.mVPathRenderer.getRootAlpha() != alpha) { 299 mVectorState.mVPathRenderer.setRootAlpha(alpha); 300 invalidateSelf(); 301 } 302 } 303 304 @Override 305 public void setColorFilter(ColorFilter colorFilter) { 306 mColorFilter = colorFilter; 307 invalidateSelf(); 308 } 309 310 @Override 311 public void setTintList(ColorStateList tint) { 312 final VectorDrawableState state = mVectorState; 313 if (state.mTint != tint) { 314 state.mTint = tint; 315 mTintFilter = updateTintFilter(mTintFilter, tint, state.mTintMode); 316 invalidateSelf(); 317 } 318 } 319 320 @Override 321 public void setTintMode(Mode tintMode) { 322 final VectorDrawableState state = mVectorState; 323 if (state.mTintMode != tintMode) { 324 state.mTintMode = tintMode; 325 mTintFilter = updateTintFilter(mTintFilter, state.mTint, tintMode); 326 invalidateSelf(); 327 } 328 } 329 330 @Override 331 public boolean isStateful() { 332 return super.isStateful() || (mVectorState != null && mVectorState.mTint != null 333 && mVectorState.mTint.isStateful()); 334 } 335 336 @Override 337 protected boolean onStateChange(int[] stateSet) { 338 final VectorDrawableState state = mVectorState; 339 if (state.mTint != null && state.mTintMode != null) { 340 mTintFilter = updateTintFilter(mTintFilter, state.mTint, state.mTintMode); 341 invalidateSelf(); 342 return true; 343 } 344 return false; 345 } 346 347 @Override 348 public int getOpacity() { 349 return PixelFormat.TRANSLUCENT; 350 } 351 352 @Override 353 public int getIntrinsicWidth() { 354 return (int) mVectorState.mVPathRenderer.mBaseWidth; 355 } 356 357 @Override 358 public int getIntrinsicHeight() { 359 return (int) mVectorState.mVPathRenderer.mBaseHeight; 360 } 361 362 @Override 363 public boolean canApplyTheme() { 364 return (mVectorState != null && mVectorState.canApplyTheme()) || super.canApplyTheme(); 365 } 366 367 @Override 368 public void applyTheme(Theme t) { 369 super.applyTheme(t); 370 371 final VectorDrawableState state = mVectorState; 372 if (state != null && state.mThemeAttrs != null) { 373 final TypedArray a = t.resolveAttributes(state.mThemeAttrs, R.styleable.VectorDrawable); 374 try { 375 state.mCacheDirty = true; 376 updateStateFromTypedArray(a); 377 } catch (XmlPullParserException e) { 378 throw new RuntimeException(e); 379 } finally { 380 a.recycle(); 381 } 382 383 mTintFilter = updateTintFilter(mTintFilter, state.mTint, state.mTintMode); 384 } 385 386 final VPathRenderer path = state.mVPathRenderer; 387 if (path != null && path.canApplyTheme()) { 388 path.applyTheme(t); 389 } 390 } 391 392 /** 393 * The size of a pixel when scaled from the intrinsic dimension to the viewport dimension. 394 * This is used to calculate the path animation accuracy. 395 * 396 * @hide 397 */ 398 public float getPixelSize() { 399 if (mVectorState == null && mVectorState.mVPathRenderer == null || 400 mVectorState.mVPathRenderer.mBaseWidth == 0 || 401 mVectorState.mVPathRenderer.mBaseHeight == 0 || 402 mVectorState.mVPathRenderer.mViewportHeight == 0 || 403 mVectorState.mVPathRenderer.mViewportWidth == 0) { 404 return 1; // fall back to 1:1 pixel mapping. 405 } 406 float intrinsicWidth = mVectorState.mVPathRenderer.mBaseWidth; 407 float intrinsicHeight = mVectorState.mVPathRenderer.mBaseHeight; 408 float viewportWidth = mVectorState.mVPathRenderer.mViewportWidth; 409 float viewportHeight = mVectorState.mVPathRenderer.mViewportHeight; 410 float scaleX = viewportWidth / intrinsicWidth; 411 float scaleY = viewportHeight / intrinsicHeight; 412 return Math.min(scaleX, scaleY); 413 } 414 415 /** @hide */ 416 public static VectorDrawable create(Resources resources, int rid) { 417 try { 418 final XmlPullParser parser = resources.getXml(rid); 419 final AttributeSet attrs = Xml.asAttributeSet(parser); 420 int type; 421 while ((type=parser.next()) != XmlPullParser.START_TAG && 422 type != XmlPullParser.END_DOCUMENT) { 423 // Empty loop 424 } 425 if (type != XmlPullParser.START_TAG) { 426 throw new XmlPullParserException("No start tag found"); 427 } 428 429 final VectorDrawable drawable = new VectorDrawable(); 430 drawable.inflate(resources, parser, attrs); 431 432 return drawable; 433 } catch (XmlPullParserException e) { 434 Log.e(LOGTAG, "parser error", e); 435 } catch (IOException e) { 436 Log.e(LOGTAG, "parser error", e); 437 } 438 return null; 439 } 440 441 private static int applyAlpha(int color, float alpha) { 442 int alphaBytes = Color.alpha(color); 443 color &= 0x00FFFFFF; 444 color |= ((int) (alphaBytes * alpha)) << 24; 445 return color; 446 } 447 448 @Override 449 public void inflate(Resources res, XmlPullParser parser, AttributeSet attrs, Theme theme) 450 throws XmlPullParserException, IOException { 451 final VectorDrawableState state = mVectorState; 452 final VPathRenderer pathRenderer = new VPathRenderer(); 453 state.mVPathRenderer = pathRenderer; 454 455 final TypedArray a = obtainAttributes(res, theme, attrs, R.styleable.VectorDrawable); 456 updateStateFromTypedArray(a); 457 a.recycle(); 458 459 state.mCacheDirty = true; 460 inflateInternal(res, parser, attrs, theme); 461 462 mTintFilter = updateTintFilter(mTintFilter, state.mTint, state.mTintMode); 463 } 464 465 private void updateStateFromTypedArray(TypedArray a) throws XmlPullParserException { 466 final VectorDrawableState state = mVectorState; 467 final VPathRenderer pathRenderer = state.mVPathRenderer; 468 469 // Account for any configuration changes. 470 state.mChangingConfigurations |= a.getChangingConfigurations(); 471 472 // Extract the theme attributes, if any. 473 state.mThemeAttrs = a.extractThemeAttrs(); 474 475 final int tintMode = a.getInt(R.styleable.VectorDrawable_tintMode, -1); 476 if (tintMode != -1) { 477 state.mTintMode = Drawable.parseTintMode(tintMode, Mode.SRC_IN); 478 } 479 480 final ColorStateList tint = a.getColorStateList(R.styleable.VectorDrawable_tint); 481 if (tint != null) { 482 state.mTint = tint; 483 } 484 485 state.mAutoMirrored = a.getBoolean( 486 R.styleable.VectorDrawable_autoMirrored, state.mAutoMirrored); 487 488 pathRenderer.mViewportWidth = a.getFloat( 489 R.styleable.VectorDrawable_viewportWidth, pathRenderer.mViewportWidth); 490 pathRenderer.mViewportHeight = a.getFloat( 491 R.styleable.VectorDrawable_viewportHeight, pathRenderer.mViewportHeight); 492 493 if (pathRenderer.mViewportWidth <= 0) { 494 throw new XmlPullParserException(a.getPositionDescription() + 495 "<vector> tag requires viewportWidth > 0"); 496 } else if (pathRenderer.mViewportHeight <= 0) { 497 throw new XmlPullParserException(a.getPositionDescription() + 498 "<vector> tag requires viewportHeight > 0"); 499 } 500 501 pathRenderer.mBaseWidth = a.getDimension( 502 R.styleable.VectorDrawable_width, pathRenderer.mBaseWidth); 503 pathRenderer.mBaseHeight = a.getDimension( 504 R.styleable.VectorDrawable_height, pathRenderer.mBaseHeight); 505 506 if (pathRenderer.mBaseWidth <= 0) { 507 throw new XmlPullParserException(a.getPositionDescription() + 508 "<vector> tag requires width > 0"); 509 } else if (pathRenderer.mBaseHeight <= 0) { 510 throw new XmlPullParserException(a.getPositionDescription() + 511 "<vector> tag requires height > 0"); 512 } 513 514 final float alphaInFloat = a.getFloat(R.styleable.VectorDrawable_alpha, 515 pathRenderer.getAlpha()); 516 pathRenderer.setAlpha(alphaInFloat); 517 518 final String name = a.getString(R.styleable.VectorDrawable_name); 519 if (name != null) { 520 pathRenderer.mRootName = name; 521 pathRenderer.mVGTargetsMap.put(name, pathRenderer); 522 } 523 } 524 525 private void inflateInternal(Resources res, XmlPullParser parser, AttributeSet attrs, 526 Theme theme) throws XmlPullParserException, IOException { 527 final VectorDrawableState state = mVectorState; 528 final VPathRenderer pathRenderer = state.mVPathRenderer; 529 boolean noPathTag = true; 530 531 // Use a stack to help to build the group tree. 532 // The top of the stack is always the current group. 533 final Stack<VGroup> groupStack = new Stack<VGroup>(); 534 groupStack.push(pathRenderer.mRootGroup); 535 536 int eventType = parser.getEventType(); 537 while (eventType != XmlPullParser.END_DOCUMENT) { 538 if (eventType == XmlPullParser.START_TAG) { 539 final String tagName = parser.getName(); 540 final VGroup currentGroup = groupStack.peek(); 541 542 if (SHAPE_PATH.equals(tagName)) { 543 final VFullPath path = new VFullPath(); 544 path.inflate(res, attrs, theme); 545 currentGroup.mChildren.add(path); 546 if (path.getPathName() != null) { 547 pathRenderer.mVGTargetsMap.put(path.getPathName(), path); 548 } 549 noPathTag = false; 550 state.mChangingConfigurations |= path.mChangingConfigurations; 551 } else if (SHAPE_CLIP_PATH.equals(tagName)) { 552 final VClipPath path = new VClipPath(); 553 path.inflate(res, attrs, theme); 554 currentGroup.mChildren.add(path); 555 if (path.getPathName() != null) { 556 pathRenderer.mVGTargetsMap.put(path.getPathName(), path); 557 } 558 state.mChangingConfigurations |= path.mChangingConfigurations; 559 } else if (SHAPE_GROUP.equals(tagName)) { 560 VGroup newChildGroup = new VGroup(); 561 newChildGroup.inflate(res, attrs, theme); 562 currentGroup.mChildren.add(newChildGroup); 563 groupStack.push(newChildGroup); 564 if (newChildGroup.getGroupName() != null) { 565 pathRenderer.mVGTargetsMap.put(newChildGroup.getGroupName(), 566 newChildGroup); 567 } 568 state.mChangingConfigurations |= newChildGroup.mChangingConfigurations; 569 } 570 } else if (eventType == XmlPullParser.END_TAG) { 571 final String tagName = parser.getName(); 572 if (SHAPE_GROUP.equals(tagName)) { 573 groupStack.pop(); 574 } 575 } 576 eventType = parser.next(); 577 } 578 579 // Print the tree out for debug. 580 if (DBG_VECTOR_DRAWABLE) { 581 printGroupTree(pathRenderer.mRootGroup, 0); 582 } 583 584 if (noPathTag) { 585 final StringBuffer tag = new StringBuffer(); 586 587 if (tag.length() > 0) { 588 tag.append(" or "); 589 } 590 tag.append(SHAPE_PATH); 591 592 throw new XmlPullParserException("no " + tag + " defined"); 593 } 594 } 595 596 private void printGroupTree(VGroup currentGroup, int level) { 597 String indent = ""; 598 for (int i = 0; i < level; i++) { 599 indent += " "; 600 } 601 // Print the current node 602 Log.v(LOGTAG, indent + "current group is :" + currentGroup.getGroupName() 603 + " rotation is " + currentGroup.mRotate); 604 Log.v(LOGTAG, indent + "matrix is :" + currentGroup.getLocalMatrix().toString()); 605 // Then print all the children groups 606 for (int i = 0; i < currentGroup.mChildren.size(); i++) { 607 Object child = currentGroup.mChildren.get(i); 608 if (child instanceof VGroup) { 609 printGroupTree((VGroup) child, level + 1); 610 } 611 } 612 } 613 614 @Override 615 public int getChangingConfigurations() { 616 return super.getChangingConfigurations() | mVectorState.mChangingConfigurations; 617 } 618 619 void setAllowCaching(boolean allowCaching) { 620 mAllowCaching = allowCaching; 621 } 622 623 private boolean needMirroring() { 624 return isAutoMirrored() && getLayoutDirection() == LayoutDirection.RTL; 625 } 626 627 @Override 628 public void setAutoMirrored(boolean mirrored) { 629 if (mVectorState.mAutoMirrored != mirrored) { 630 mVectorState.mAutoMirrored = mirrored; 631 invalidateSelf(); 632 } 633 } 634 635 @Override 636 public boolean isAutoMirrored() { 637 return mVectorState.mAutoMirrored; 638 } 639 640 private static class VectorDrawableState extends ConstantState { 641 int[] mThemeAttrs; 642 int mChangingConfigurations; 643 VPathRenderer mVPathRenderer; 644 ColorStateList mTint = null; 645 Mode mTintMode = DEFAULT_TINT_MODE; 646 boolean mAutoMirrored; 647 648 Bitmap mCachedBitmap; 649 int[] mCachedThemeAttrs; 650 ColorStateList mCachedTint; 651 Mode mCachedTintMode; 652 int mCachedRootAlpha; 653 boolean mCachedAutoMirrored; 654 boolean mCacheDirty; 655 656 /** Temporary paint object used to draw cached bitmaps. */ 657 Paint mTempPaint; 658 659 // Deep copy for mutate() or implicitly mutate. 660 public VectorDrawableState(VectorDrawableState copy) { 661 if (copy != null) { 662 mThemeAttrs = copy.mThemeAttrs; 663 mChangingConfigurations = copy.mChangingConfigurations; 664 mVPathRenderer = new VPathRenderer(copy.mVPathRenderer); 665 if (copy.mVPathRenderer.mFillPaint != null) { 666 mVPathRenderer.mFillPaint = new Paint(copy.mVPathRenderer.mFillPaint); 667 } 668 if (copy.mVPathRenderer.mStrokePaint != null) { 669 mVPathRenderer.mStrokePaint = new Paint(copy.mVPathRenderer.mStrokePaint); 670 } 671 mTint = copy.mTint; 672 mTintMode = copy.mTintMode; 673 mAutoMirrored = copy.mAutoMirrored; 674 } 675 } 676 677 public void drawCachedBitmapWithRootAlpha(Canvas canvas, ColorFilter filter) { 678 // The bitmap's size is the same as the bounds. 679 final Paint p = getPaint(filter); 680 canvas.drawBitmap(mCachedBitmap, 0, 0, p); 681 } 682 683 public boolean hasTranslucentRoot() { 684 return mVPathRenderer.getRootAlpha() < 255; 685 } 686 687 /** 688 * @return null when there is no need for alpha paint. 689 */ 690 public Paint getPaint(ColorFilter filter) { 691 if (!hasTranslucentRoot() && filter == null) { 692 return null; 693 } 694 695 if (mTempPaint == null) { 696 mTempPaint = new Paint(); 697 mTempPaint.setFilterBitmap(true); 698 } 699 mTempPaint.setAlpha(mVPathRenderer.getRootAlpha()); 700 mTempPaint.setColorFilter(filter); 701 return mTempPaint; 702 } 703 704 public void updateCachedBitmap(Rect bounds) { 705 mCachedBitmap.eraseColor(Color.TRANSPARENT); 706 Canvas tmpCanvas = new Canvas(mCachedBitmap); 707 mVPathRenderer.draw(tmpCanvas, bounds.width(), bounds.height(), null); 708 } 709 710 public void createCachedBitmapIfNeeded(Rect bounds) { 711 if (mCachedBitmap == null || !canReuseBitmap(bounds.width(), 712 bounds.height())) { 713 mCachedBitmap = Bitmap.createBitmap(bounds.width(), bounds.height(), 714 Bitmap.Config.ARGB_8888); 715 mCacheDirty = true; 716 } 717 718 } 719 720 public boolean canReuseBitmap(int width, int height) { 721 if (width == mCachedBitmap.getWidth() 722 && height == mCachedBitmap.getHeight()) { 723 return true; 724 } 725 return false; 726 } 727 728 public boolean canReuseCache() { 729 if (!mCacheDirty 730 && mCachedThemeAttrs == mThemeAttrs 731 && mCachedTint == mTint 732 && mCachedTintMode == mTintMode 733 && mCachedAutoMirrored == mAutoMirrored 734 && mCachedRootAlpha == mVPathRenderer.getRootAlpha()) { 735 return true; 736 } 737 return false; 738 } 739 740 public void updateCacheStates() { 741 // Use shallow copy here and shallow comparison in canReuseCache(), 742 // likely hit cache miss more, but practically not much difference. 743 mCachedThemeAttrs = mThemeAttrs; 744 mCachedTint = mTint; 745 mCachedTintMode = mTintMode; 746 mCachedRootAlpha = mVPathRenderer.getRootAlpha(); 747 mCachedAutoMirrored = mAutoMirrored; 748 mCacheDirty = false; 749 } 750 751 @Override 752 public boolean canApplyTheme() { 753 return mThemeAttrs != null || (mVPathRenderer != null && mVPathRenderer.canApplyTheme()) 754 || super.canApplyTheme(); 755 } 756 757 public VectorDrawableState() { 758 mVPathRenderer = new VPathRenderer(); 759 } 760 761 @Override 762 public Drawable newDrawable() { 763 return new VectorDrawable(this); 764 } 765 766 @Override 767 public Drawable newDrawable(Resources res) { 768 return new VectorDrawable(this); 769 } 770 771 @Override 772 public int getChangingConfigurations() { 773 return mChangingConfigurations; 774 } 775 } 776 777 private static class VPathRenderer { 778 /* Right now the internal data structure is organized as a tree. 779 * Each node can be a group node, or a path. 780 * A group node can have groups or paths as children, but a path node has 781 * no children. 782 * One example can be: 783 * Root Group 784 * / | \ 785 * Group Path Group 786 * / \ | 787 * Path Path Path 788 * 789 */ 790 // Variables that only used temporarily inside the draw() call, so there 791 // is no need for deep copying. 792 private final Path mPath; 793 private final Path mRenderPath; 794 private static final Matrix IDENTITY_MATRIX = new Matrix(); 795 private final Matrix mFinalPathMatrix = new Matrix(); 796 797 private Paint mStrokePaint; 798 private Paint mFillPaint; 799 private PathMeasure mPathMeasure; 800 801 ///////////////////////////////////////////////////// 802 // Variables below need to be copied (deep copy if applicable) for mutation. 803 private int mChangingConfigurations; 804 private final VGroup mRootGroup; 805 float mBaseWidth = 0; 806 float mBaseHeight = 0; 807 float mViewportWidth = 0; 808 float mViewportHeight = 0; 809 int mRootAlpha = 0xFF; 810 String mRootName = null; 811 812 final ArrayMap<String, Object> mVGTargetsMap = new ArrayMap<String, Object>(); 813 814 public VPathRenderer() { 815 mRootGroup = new VGroup(); 816 mPath = new Path(); 817 mRenderPath = new Path(); 818 } 819 820 public void setRootAlpha(int alpha) { 821 mRootAlpha = alpha; 822 } 823 824 public int getRootAlpha() { 825 return mRootAlpha; 826 } 827 828 // setAlpha() and getAlpha() are used mostly for animation purpose, since 829 // Animator like to use alpha from 0 to 1. 830 public void setAlpha(float alpha) { 831 setRootAlpha((int) (alpha * 255)); 832 } 833 834 @SuppressWarnings("unused") 835 public float getAlpha() { 836 return getRootAlpha() / 255.0f; 837 } 838 839 public VPathRenderer(VPathRenderer copy) { 840 mRootGroup = new VGroup(copy.mRootGroup, mVGTargetsMap); 841 mPath = new Path(copy.mPath); 842 mRenderPath = new Path(copy.mRenderPath); 843 mBaseWidth = copy.mBaseWidth; 844 mBaseHeight = copy.mBaseHeight; 845 mViewportWidth = copy.mViewportWidth; 846 mViewportHeight = copy.mViewportHeight; 847 mChangingConfigurations = copy.mChangingConfigurations; 848 mRootAlpha = copy.mRootAlpha; 849 mRootName = copy.mRootName; 850 if (copy.mRootName != null) { 851 mVGTargetsMap.put(copy.mRootName, this); 852 } 853 } 854 855 public boolean canApplyTheme() { 856 // If one of the paths can apply theme, then return true; 857 return recursiveCanApplyTheme(mRootGroup); 858 } 859 860 private boolean recursiveCanApplyTheme(VGroup currentGroup) { 861 // We can do a tree traverse here, if there is one path return true, 862 // then we return true for the whole tree. 863 final ArrayList<Object> children = currentGroup.mChildren; 864 865 for (int i = 0; i < children.size(); i++) { 866 Object child = children.get(i); 867 if (child instanceof VGroup) { 868 VGroup childGroup = (VGroup) child; 869 if (childGroup.canApplyTheme() 870 || recursiveCanApplyTheme(childGroup)) { 871 return true; 872 } 873 } else if (child instanceof VPath) { 874 VPath childPath = (VPath) child; 875 if (childPath.canApplyTheme()) { 876 return true; 877 } 878 } 879 } 880 return false; 881 } 882 883 public void applyTheme(Theme t) { 884 // Apply theme to every path of the tree. 885 recursiveApplyTheme(mRootGroup, t); 886 } 887 888 private void recursiveApplyTheme(VGroup currentGroup, Theme t) { 889 // We can do a tree traverse here, apply theme to all paths which 890 // can apply theme. 891 final ArrayList<Object> children = currentGroup.mChildren; 892 for (int i = 0; i < children.size(); i++) { 893 Object child = children.get(i); 894 if (child instanceof VGroup) { 895 VGroup childGroup = (VGroup) child; 896 if (childGroup.canApplyTheme()) { 897 childGroup.applyTheme(t); 898 } 899 recursiveApplyTheme(childGroup, t); 900 } else if (child instanceof VPath) { 901 VPath childPath = (VPath) child; 902 if (childPath.canApplyTheme()) { 903 childPath.applyTheme(t); 904 } 905 } 906 } 907 } 908 909 private void drawGroupTree(VGroup currentGroup, Matrix currentMatrix, 910 Canvas canvas, int w, int h, ColorFilter filter) { 911 // Calculate current group's matrix by preConcat the parent's and 912 // and the current one on the top of the stack. 913 // Basically the Mfinal = Mviewport * M0 * M1 * M2; 914 // Mi the local matrix at level i of the group tree. 915 currentGroup.mStackedMatrix.set(currentMatrix); 916 917 currentGroup.mStackedMatrix.preConcat(currentGroup.mLocalMatrix); 918 919 // Draw the group tree in the same order as the XML file. 920 for (int i = 0; i < currentGroup.mChildren.size(); i++) { 921 Object child = currentGroup.mChildren.get(i); 922 if (child instanceof VGroup) { 923 VGroup childGroup = (VGroup) child; 924 drawGroupTree(childGroup, currentGroup.mStackedMatrix, 925 canvas, w, h, filter); 926 } else if (child instanceof VPath) { 927 VPath childPath = (VPath) child; 928 drawPath(currentGroup, childPath, canvas, w, h, filter); 929 } 930 } 931 } 932 933 public void draw(Canvas canvas, int w, int h, ColorFilter filter) { 934 // Travese the tree in pre-order to draw. 935 drawGroupTree(mRootGroup, IDENTITY_MATRIX, canvas, w, h, filter); 936 } 937 938 private void drawPath(VGroup vGroup, VPath vPath, Canvas canvas, int w, int h, 939 ColorFilter filter) { 940 final float scaleX = w / mViewportWidth; 941 final float scaleY = h / mViewportHeight; 942 final float minScale = Math.min(scaleX, scaleY); 943 944 mFinalPathMatrix.set(vGroup.mStackedMatrix); 945 mFinalPathMatrix.postScale(scaleX, scaleY); 946 947 vPath.toPath(mPath); 948 final Path path = mPath; 949 950 mRenderPath.reset(); 951 952 if (vPath.isClipPath()) { 953 mRenderPath.addPath(path, mFinalPathMatrix); 954 canvas.clipPath(mRenderPath, Region.Op.REPLACE); 955 } else { 956 VFullPath fullPath = (VFullPath) vPath; 957 if (fullPath.mTrimPathStart != 0.0f || fullPath.mTrimPathEnd != 1.0f) { 958 float start = (fullPath.mTrimPathStart + fullPath.mTrimPathOffset) % 1.0f; 959 float end = (fullPath.mTrimPathEnd + fullPath.mTrimPathOffset) % 1.0f; 960 961 if (mPathMeasure == null) { 962 mPathMeasure = new PathMeasure(); 963 } 964 mPathMeasure.setPath(mPath, false); 965 966 float len = mPathMeasure.getLength(); 967 start = start * len; 968 end = end * len; 969 path.reset(); 970 if (start > end) { 971 mPathMeasure.getSegment(start, len, path, true); 972 mPathMeasure.getSegment(0f, end, path, true); 973 } else { 974 mPathMeasure.getSegment(start, end, path, true); 975 } 976 path.rLineTo(0, 0); // fix bug in measure 977 } 978 mRenderPath.addPath(path, mFinalPathMatrix); 979 980 if (fullPath.mFillColor != Color.TRANSPARENT) { 981 if (mFillPaint == null) { 982 mFillPaint = new Paint(); 983 mFillPaint.setStyle(Paint.Style.FILL); 984 mFillPaint.setAntiAlias(true); 985 } 986 987 final Paint fillPaint = mFillPaint; 988 fillPaint.setColor(applyAlpha(fullPath.mFillColor, fullPath.mFillAlpha)); 989 fillPaint.setColorFilter(filter); 990 canvas.drawPath(mRenderPath, fillPaint); 991 } 992 993 if (fullPath.mStrokeColor != Color.TRANSPARENT) { 994 if (mStrokePaint == null) { 995 mStrokePaint = new Paint(); 996 mStrokePaint.setStyle(Paint.Style.STROKE); 997 mStrokePaint.setAntiAlias(true); 998 } 999 1000 final Paint strokePaint = mStrokePaint; 1001 if (fullPath.mStrokeLineJoin != null) { 1002 strokePaint.setStrokeJoin(fullPath.mStrokeLineJoin); 1003 } 1004 1005 if (fullPath.mStrokeLineCap != null) { 1006 strokePaint.setStrokeCap(fullPath.mStrokeLineCap); 1007 } 1008 1009 strokePaint.setStrokeMiter(fullPath.mStrokeMiterlimit); 1010 strokePaint.setColor(applyAlpha(fullPath.mStrokeColor, fullPath.mStrokeAlpha)); 1011 strokePaint.setColorFilter(filter); 1012 strokePaint.setStrokeWidth(fullPath.mStrokeWidth * minScale); 1013 canvas.drawPath(mRenderPath, strokePaint); 1014 } 1015 } 1016 } 1017 } 1018 1019 private static class VGroup { 1020 // mStackedMatrix is only used temporarily when drawing, it combines all 1021 // the parents' local matrices with the current one. 1022 private final Matrix mStackedMatrix = new Matrix(); 1023 1024 ///////////////////////////////////////////////////// 1025 // Variables below need to be copied (deep copy if applicable) for mutation. 1026 final ArrayList<Object> mChildren = new ArrayList<Object>(); 1027 1028 private float mRotate = 0; 1029 private float mPivotX = 0; 1030 private float mPivotY = 0; 1031 private float mScaleX = 1; 1032 private float mScaleY = 1; 1033 private float mTranslateX = 0; 1034 private float mTranslateY = 0; 1035 1036 // mLocalMatrix is updated based on the update of transformation information, 1037 // either parsed from the XML or by animation. 1038 private final Matrix mLocalMatrix = new Matrix(); 1039 private int mChangingConfigurations; 1040 private int[] mThemeAttrs; 1041 private String mGroupName = null; 1042 1043 public VGroup(VGroup copy, ArrayMap<String, Object> targetsMap) { 1044 mRotate = copy.mRotate; 1045 mPivotX = copy.mPivotX; 1046 mPivotY = copy.mPivotY; 1047 mScaleX = copy.mScaleX; 1048 mScaleY = copy.mScaleY; 1049 mTranslateX = copy.mTranslateX; 1050 mTranslateY = copy.mTranslateY; 1051 mThemeAttrs = copy.mThemeAttrs; 1052 mGroupName = copy.mGroupName; 1053 mChangingConfigurations = copy.mChangingConfigurations; 1054 if (mGroupName != null) { 1055 targetsMap.put(mGroupName, this); 1056 } 1057 1058 mLocalMatrix.set(copy.mLocalMatrix); 1059 1060 final ArrayList<Object> children = copy.mChildren; 1061 for (int i = 0; i < children.size(); i++) { 1062 Object copyChild = children.get(i); 1063 if (copyChild instanceof VGroup) { 1064 VGroup copyGroup = (VGroup) copyChild; 1065 mChildren.add(new VGroup(copyGroup, targetsMap)); 1066 } else { 1067 VPath newPath = null; 1068 if (copyChild instanceof VFullPath) { 1069 newPath = new VFullPath((VFullPath) copyChild); 1070 } else if (copyChild instanceof VClipPath) { 1071 newPath = new VClipPath((VClipPath) copyChild); 1072 } else { 1073 throw new IllegalStateException("Unknown object in the tree!"); 1074 } 1075 mChildren.add(newPath); 1076 if (newPath.mPathName != null) { 1077 targetsMap.put(newPath.mPathName, newPath); 1078 } 1079 } 1080 } 1081 } 1082 1083 public VGroup() { 1084 } 1085 1086 public String getGroupName() { 1087 return mGroupName; 1088 } 1089 1090 public Matrix getLocalMatrix() { 1091 return mLocalMatrix; 1092 } 1093 1094 public void inflate(Resources res, AttributeSet attrs, Theme theme) { 1095 final TypedArray a = obtainAttributes(res, theme, attrs, 1096 R.styleable.VectorDrawableGroup); 1097 updateStateFromTypedArray(a); 1098 a.recycle(); 1099 } 1100 1101 private void updateStateFromTypedArray(TypedArray a) { 1102 // Account for any configuration changes. 1103 mChangingConfigurations |= a.getChangingConfigurations(); 1104 1105 // Extract the theme attributes, if any. 1106 mThemeAttrs = a.extractThemeAttrs(); 1107 1108 mRotate = a.getFloat(R.styleable.VectorDrawableGroup_rotation, mRotate); 1109 mPivotX = a.getFloat(R.styleable.VectorDrawableGroup_pivotX, mPivotX); 1110 mPivotY = a.getFloat(R.styleable.VectorDrawableGroup_pivotY, mPivotY); 1111 mScaleX = a.getFloat(R.styleable.VectorDrawableGroup_scaleX, mScaleX); 1112 mScaleY = a.getFloat(R.styleable.VectorDrawableGroup_scaleY, mScaleY); 1113 mTranslateX = a.getFloat(R.styleable.VectorDrawableGroup_translateX, mTranslateX); 1114 mTranslateY = a.getFloat(R.styleable.VectorDrawableGroup_translateY, mTranslateY); 1115 1116 final String groupName = a.getString(R.styleable.VectorDrawableGroup_name); 1117 if (groupName != null) { 1118 mGroupName = groupName; 1119 } 1120 1121 updateLocalMatrix(); 1122 } 1123 1124 public boolean canApplyTheme() { 1125 return mThemeAttrs != null; 1126 } 1127 1128 public void applyTheme(Theme t) { 1129 if (mThemeAttrs == null) { 1130 return; 1131 } 1132 1133 final TypedArray a = t.resolveAttributes(mThemeAttrs, R.styleable.VectorDrawableGroup); 1134 updateStateFromTypedArray(a); 1135 a.recycle(); 1136 } 1137 1138 private void updateLocalMatrix() { 1139 // The order we apply is the same as the 1140 // RenderNode.cpp::applyViewPropertyTransforms(). 1141 mLocalMatrix.reset(); 1142 mLocalMatrix.postTranslate(-mPivotX, -mPivotY); 1143 mLocalMatrix.postScale(mScaleX, mScaleY); 1144 mLocalMatrix.postRotate(mRotate, 0, 0); 1145 mLocalMatrix.postTranslate(mTranslateX + mPivotX, mTranslateY + mPivotY); 1146 } 1147 1148 /* Setters and Getters, used by animator from AnimatedVectorDrawable. */ 1149 @SuppressWarnings("unused") 1150 public float getRotation() { 1151 return mRotate; 1152 } 1153 1154 @SuppressWarnings("unused") 1155 public void setRotation(float rotation) { 1156 if (rotation != mRotate) { 1157 mRotate = rotation; 1158 updateLocalMatrix(); 1159 } 1160 } 1161 1162 @SuppressWarnings("unused") 1163 public float getPivotX() { 1164 return mPivotX; 1165 } 1166 1167 @SuppressWarnings("unused") 1168 public void setPivotX(float pivotX) { 1169 if (pivotX != mPivotX) { 1170 mPivotX = pivotX; 1171 updateLocalMatrix(); 1172 } 1173 } 1174 1175 @SuppressWarnings("unused") 1176 public float getPivotY() { 1177 return mPivotY; 1178 } 1179 1180 @SuppressWarnings("unused") 1181 public void setPivotY(float pivotY) { 1182 if (pivotY != mPivotY) { 1183 mPivotY = pivotY; 1184 updateLocalMatrix(); 1185 } 1186 } 1187 1188 @SuppressWarnings("unused") 1189 public float getScaleX() { 1190 return mScaleX; 1191 } 1192 1193 @SuppressWarnings("unused") 1194 public void setScaleX(float scaleX) { 1195 if (scaleX != mScaleX) { 1196 mScaleX = scaleX; 1197 updateLocalMatrix(); 1198 } 1199 } 1200 1201 @SuppressWarnings("unused") 1202 public float getScaleY() { 1203 return mScaleY; 1204 } 1205 1206 @SuppressWarnings("unused") 1207 public void setScaleY(float scaleY) { 1208 if (scaleY != mScaleY) { 1209 mScaleY = scaleY; 1210 updateLocalMatrix(); 1211 } 1212 } 1213 1214 @SuppressWarnings("unused") 1215 public float getTranslateX() { 1216 return mTranslateX; 1217 } 1218 1219 @SuppressWarnings("unused") 1220 public void setTranslateX(float translateX) { 1221 if (translateX != mTranslateX) { 1222 mTranslateX = translateX; 1223 updateLocalMatrix(); 1224 } 1225 } 1226 1227 @SuppressWarnings("unused") 1228 public float getTranslateY() { 1229 return mTranslateY; 1230 } 1231 1232 @SuppressWarnings("unused") 1233 public void setTranslateY(float translateY) { 1234 if (translateY != mTranslateY) { 1235 mTranslateY = translateY; 1236 updateLocalMatrix(); 1237 } 1238 } 1239 } 1240 1241 /** 1242 * Common Path information for clip path and normal path. 1243 */ 1244 private static class VPath { 1245 protected PathParser.PathDataNode[] mNodes = null; 1246 String mPathName; 1247 int mChangingConfigurations; 1248 1249 public VPath() { 1250 // Empty constructor. 1251 } 1252 1253 public VPath(VPath copy) { 1254 mPathName = copy.mPathName; 1255 mChangingConfigurations = copy.mChangingConfigurations; 1256 mNodes = PathParser.deepCopyNodes(copy.mNodes); 1257 } 1258 1259 public void toPath(Path path) { 1260 path.reset(); 1261 if (mNodes != null) { 1262 PathParser.PathDataNode.nodesToPath(mNodes, path); 1263 } 1264 } 1265 1266 public String getPathName() { 1267 return mPathName; 1268 } 1269 1270 public boolean canApplyTheme() { 1271 return false; 1272 } 1273 1274 public void applyTheme(Theme t) { 1275 } 1276 1277 public boolean isClipPath() { 1278 return false; 1279 } 1280 1281 /* Setters and Getters, used by animator from AnimatedVectorDrawable. */ 1282 @SuppressWarnings("unused") 1283 public PathParser.PathDataNode[] getPathData() { 1284 return mNodes; 1285 } 1286 1287 @SuppressWarnings("unused") 1288 public void setPathData(PathParser.PathDataNode[] nodes) { 1289 if (!PathParser.canMorph(mNodes, nodes)) { 1290 // This should not happen in the middle of animation. 1291 mNodes = PathParser.deepCopyNodes(nodes); 1292 } else { 1293 PathParser.updateNodes(mNodes, nodes); 1294 } 1295 } 1296 } 1297 1298 /** 1299 * Clip path, which only has name and pathData. 1300 */ 1301 private static class VClipPath extends VPath { 1302 public VClipPath() { 1303 // Empty constructor. 1304 } 1305 1306 public VClipPath(VClipPath copy) { 1307 super(copy); 1308 } 1309 1310 public void inflate(Resources r, AttributeSet attrs, Theme theme) { 1311 final TypedArray a = obtainAttributes(r, theme, attrs, 1312 R.styleable.VectorDrawableClipPath); 1313 updateStateFromTypedArray(a); 1314 a.recycle(); 1315 } 1316 1317 private void updateStateFromTypedArray(TypedArray a) { 1318 // Account for any configuration changes. 1319 mChangingConfigurations |= a.getChangingConfigurations(); 1320 1321 final String pathName = a.getString(R.styleable.VectorDrawableClipPath_name); 1322 if (pathName != null) { 1323 mPathName = pathName; 1324 } 1325 1326 final String pathData = a.getString(R.styleable.VectorDrawableClipPath_pathData); 1327 if (pathData != null) { 1328 mNodes = PathParser.createNodesFromPathData(pathData); 1329 } 1330 } 1331 1332 @Override 1333 public boolean isClipPath() { 1334 return true; 1335 } 1336 } 1337 1338 /** 1339 * Normal path, which contains all the fill / paint information. 1340 */ 1341 private static class VFullPath extends VPath { 1342 ///////////////////////////////////////////////////// 1343 // Variables below need to be copied (deep copy if applicable) for mutation. 1344 private int[] mThemeAttrs; 1345 1346 int mStrokeColor = Color.TRANSPARENT; 1347 float mStrokeWidth = 0; 1348 1349 int mFillColor = Color.TRANSPARENT; 1350 float mStrokeAlpha = 1.0f; 1351 int mFillRule; 1352 float mFillAlpha = 1.0f; 1353 float mTrimPathStart = 0; 1354 float mTrimPathEnd = 1; 1355 float mTrimPathOffset = 0; 1356 1357 Paint.Cap mStrokeLineCap = Paint.Cap.BUTT; 1358 Paint.Join mStrokeLineJoin = Paint.Join.MITER; 1359 float mStrokeMiterlimit = 4; 1360 1361 public VFullPath() { 1362 // Empty constructor. 1363 } 1364 1365 public VFullPath(VFullPath copy) { 1366 super(copy); 1367 mThemeAttrs = copy.mThemeAttrs; 1368 1369 mStrokeColor = copy.mStrokeColor; 1370 mStrokeWidth = copy.mStrokeWidth; 1371 mStrokeAlpha = copy.mStrokeAlpha; 1372 mFillColor = copy.mFillColor; 1373 mFillRule = copy.mFillRule; 1374 mFillAlpha = copy.mFillAlpha; 1375 mTrimPathStart = copy.mTrimPathStart; 1376 mTrimPathEnd = copy.mTrimPathEnd; 1377 mTrimPathOffset = copy.mTrimPathOffset; 1378 1379 mStrokeLineCap = copy.mStrokeLineCap; 1380 mStrokeLineJoin = copy.mStrokeLineJoin; 1381 mStrokeMiterlimit = copy.mStrokeMiterlimit; 1382 } 1383 1384 private Paint.Cap getStrokeLineCap(int id, Paint.Cap defValue) { 1385 switch (id) { 1386 case LINECAP_BUTT: 1387 return Paint.Cap.BUTT; 1388 case LINECAP_ROUND: 1389 return Paint.Cap.ROUND; 1390 case LINECAP_SQUARE: 1391 return Paint.Cap.SQUARE; 1392 default: 1393 return defValue; 1394 } 1395 } 1396 1397 private Paint.Join getStrokeLineJoin(int id, Paint.Join defValue) { 1398 switch (id) { 1399 case LINEJOIN_MITER: 1400 return Paint.Join.MITER; 1401 case LINEJOIN_ROUND: 1402 return Paint.Join.ROUND; 1403 case LINEJOIN_BEVEL: 1404 return Paint.Join.BEVEL; 1405 default: 1406 return defValue; 1407 } 1408 } 1409 1410 @Override 1411 public boolean canApplyTheme() { 1412 return mThemeAttrs != null; 1413 } 1414 1415 public void inflate(Resources r, AttributeSet attrs, Theme theme) { 1416 final TypedArray a = obtainAttributes(r, theme, attrs, 1417 R.styleable.VectorDrawablePath); 1418 updateStateFromTypedArray(a); 1419 a.recycle(); 1420 } 1421 1422 private void updateStateFromTypedArray(TypedArray a) { 1423 // Account for any configuration changes. 1424 mChangingConfigurations |= a.getChangingConfigurations(); 1425 1426 // Extract the theme attributes, if any. 1427 mThemeAttrs = a.extractThemeAttrs(); 1428 1429 final String pathName = a.getString(R.styleable.VectorDrawablePath_name); 1430 if (pathName != null) { 1431 mPathName = pathName; 1432 } 1433 1434 final String pathData = a.getString(R.styleable.VectorDrawablePath_pathData); 1435 if (pathData != null) { 1436 mNodes = PathParser.createNodesFromPathData(pathData); 1437 } 1438 1439 mFillColor = a.getColor(R.styleable.VectorDrawablePath_fillColor, 1440 mFillColor); 1441 mFillAlpha = a.getFloat(R.styleable.VectorDrawablePath_fillAlpha, 1442 mFillAlpha); 1443 mStrokeLineCap = getStrokeLineCap(a.getInt( 1444 R.styleable.VectorDrawablePath_strokeLineCap, -1), mStrokeLineCap); 1445 mStrokeLineJoin = getStrokeLineJoin(a.getInt( 1446 R.styleable.VectorDrawablePath_strokeLineJoin, -1), mStrokeLineJoin); 1447 mStrokeMiterlimit = a.getFloat( 1448 R.styleable.VectorDrawablePath_strokeMiterLimit, mStrokeMiterlimit); 1449 mStrokeColor = a.getColor(R.styleable.VectorDrawablePath_strokeColor, 1450 mStrokeColor); 1451 mStrokeAlpha = a.getFloat(R.styleable.VectorDrawablePath_strokeAlpha, 1452 mStrokeAlpha); 1453 mStrokeWidth = a.getFloat(R.styleable.VectorDrawablePath_strokeWidth, 1454 mStrokeWidth); 1455 mTrimPathEnd = a.getFloat(R.styleable.VectorDrawablePath_trimPathEnd, 1456 mTrimPathEnd); 1457 mTrimPathOffset = a.getFloat( 1458 R.styleable.VectorDrawablePath_trimPathOffset, mTrimPathOffset); 1459 mTrimPathStart = a.getFloat( 1460 R.styleable.VectorDrawablePath_trimPathStart, mTrimPathStart); 1461 } 1462 1463 @Override 1464 public void applyTheme(Theme t) { 1465 if (mThemeAttrs == null) { 1466 return; 1467 } 1468 1469 final TypedArray a = t.resolveAttributes(mThemeAttrs, R.styleable.VectorDrawablePath); 1470 updateStateFromTypedArray(a); 1471 a.recycle(); 1472 } 1473 1474 /* Setters and Getters, used by animator from AnimatedVectorDrawable. */ 1475 @SuppressWarnings("unused") 1476 int getStrokeColor() { 1477 return mStrokeColor; 1478 } 1479 1480 @SuppressWarnings("unused") 1481 void setStrokeColor(int strokeColor) { 1482 mStrokeColor = strokeColor; 1483 } 1484 1485 @SuppressWarnings("unused") 1486 float getStrokeWidth() { 1487 return mStrokeWidth; 1488 } 1489 1490 @SuppressWarnings("unused") 1491 void setStrokeWidth(float strokeWidth) { 1492 mStrokeWidth = strokeWidth; 1493 } 1494 1495 @SuppressWarnings("unused") 1496 float getStrokeAlpha() { 1497 return mStrokeAlpha; 1498 } 1499 1500 @SuppressWarnings("unused") 1501 void setStrokeAlpha(float strokeAlpha) { 1502 mStrokeAlpha = strokeAlpha; 1503 } 1504 1505 @SuppressWarnings("unused") 1506 int getFillColor() { 1507 return mFillColor; 1508 } 1509 1510 @SuppressWarnings("unused") 1511 void setFillColor(int fillColor) { 1512 mFillColor = fillColor; 1513 } 1514 1515 @SuppressWarnings("unused") 1516 float getFillAlpha() { 1517 return mFillAlpha; 1518 } 1519 1520 @SuppressWarnings("unused") 1521 void setFillAlpha(float fillAlpha) { 1522 mFillAlpha = fillAlpha; 1523 } 1524 1525 @SuppressWarnings("unused") 1526 float getTrimPathStart() { 1527 return mTrimPathStart; 1528 } 1529 1530 @SuppressWarnings("unused") 1531 void setTrimPathStart(float trimPathStart) { 1532 mTrimPathStart = trimPathStart; 1533 } 1534 1535 @SuppressWarnings("unused") 1536 float getTrimPathEnd() { 1537 return mTrimPathEnd; 1538 } 1539 1540 @SuppressWarnings("unused") 1541 void setTrimPathEnd(float trimPathEnd) { 1542 mTrimPathEnd = trimPathEnd; 1543 } 1544 1545 @SuppressWarnings("unused") 1546 float getTrimPathOffset() { 1547 return mTrimPathOffset; 1548 } 1549 1550 @SuppressWarnings("unused") 1551 void setTrimPathOffset(float trimPathOffset) { 1552 mTrimPathOffset = trimPathOffset; 1553 } 1554 } 1555 } 1556
