1 /* 2 * Copyright (C) 2010 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 android.view; 18 19 import android.graphics.Bitmap; 20 import android.graphics.Canvas; 21 import android.graphics.CanvasProperty; 22 import android.graphics.DrawFilter; 23 import android.graphics.Matrix; 24 import android.graphics.NinePatch; 25 import android.graphics.Paint; 26 import android.graphics.PaintFlagsDrawFilter; 27 import android.graphics.Path; 28 import android.graphics.Picture; 29 import android.graphics.PorterDuff; 30 import android.graphics.Rect; 31 import android.graphics.RectF; 32 import android.graphics.Region; 33 import android.graphics.Shader; 34 import android.graphics.TemporaryBuffer; 35 import android.text.GraphicsOperations; 36 import android.text.SpannableString; 37 import android.text.SpannedString; 38 import android.text.TextUtils; 39 40 /** 41 * An implementation of Canvas on top of OpenGL ES 2.0. 42 */ 43 class GLES20Canvas extends HardwareCanvas { 44 private final boolean mOpaque; 45 protected long mRenderer; 46 47 // The native renderer will be destroyed when this object dies. 48 // DO NOT overwrite this reference once it is set. 49 @SuppressWarnings({"unused", "FieldCanBeLocal"}) 50 private CanvasFinalizer mFinalizer; 51 52 private int mWidth; 53 private int mHeight; 54 55 private float[] mPoint; 56 private float[] mLine; 57 58 private Rect mClipBounds; 59 private RectF mPathBounds; 60 61 private DrawFilter mFilter; 62 63 /////////////////////////////////////////////////////////////////////////// 64 // JNI 65 /////////////////////////////////////////////////////////////////////////// 66 67 private static native boolean nIsAvailable(); 68 private static boolean sIsAvailable = nIsAvailable(); 69 70 static boolean isAvailable() { 71 return sIsAvailable; 72 } 73 74 /////////////////////////////////////////////////////////////////////////// 75 // Constructors 76 /////////////////////////////////////////////////////////////////////////// 77 78 // TODO: Merge with GLES20RecordingCanvas 79 protected GLES20Canvas() { 80 mOpaque = false; 81 mRenderer = nCreateDisplayListRenderer(); 82 setupFinalizer(); 83 } 84 85 private void setupFinalizer() { 86 if (mRenderer == 0) { 87 throw new IllegalStateException("Could not create GLES20Canvas renderer"); 88 } else { 89 mFinalizer = new CanvasFinalizer(mRenderer); 90 } 91 } 92 93 private static native long nCreateDisplayListRenderer(); 94 private static native void nResetDisplayListRenderer(long renderer); 95 private static native void nDestroyRenderer(long renderer); 96 97 private static final class CanvasFinalizer { 98 private final long mRenderer; 99 100 public CanvasFinalizer(long renderer) { 101 mRenderer = renderer; 102 } 103 104 @Override 105 protected void finalize() throws Throwable { 106 try { 107 nDestroyRenderer(mRenderer); 108 } finally { 109 super.finalize(); 110 } 111 } 112 } 113 114 public static void setProperty(String name, String value) { 115 nSetProperty(name, value); 116 } 117 118 private static native void nSetProperty(String name, String value); 119 120 /////////////////////////////////////////////////////////////////////////// 121 // Canvas management 122 /////////////////////////////////////////////////////////////////////////// 123 124 @Override 125 public boolean isOpaque() { 126 return mOpaque; 127 } 128 129 @Override 130 public int getWidth() { 131 return mWidth; 132 } 133 134 @Override 135 public int getHeight() { 136 return mHeight; 137 } 138 139 @Override 140 public int getMaximumBitmapWidth() { 141 return nGetMaximumTextureWidth(); 142 } 143 144 @Override 145 public int getMaximumBitmapHeight() { 146 return nGetMaximumTextureHeight(); 147 } 148 149 private static native int nGetMaximumTextureWidth(); 150 private static native int nGetMaximumTextureHeight(); 151 152 /** 153 * Returns the native OpenGLRenderer object. 154 */ 155 long getRenderer() { 156 return mRenderer; 157 } 158 159 /////////////////////////////////////////////////////////////////////////// 160 // Setup 161 /////////////////////////////////////////////////////////////////////////// 162 163 @Override 164 public void setViewport(int width, int height) { 165 mWidth = width; 166 mHeight = height; 167 168 nSetViewport(mRenderer, width, height); 169 } 170 171 private static native void nSetViewport(long renderer, 172 int width, int height); 173 174 @Override 175 public void setHighContrastText(boolean highContrastText) { 176 nSetHighContrastText(mRenderer, highContrastText); 177 } 178 179 private static native void nSetHighContrastText(long renderer, boolean highContrastText); 180 181 @Override 182 public void insertReorderBarrier() { 183 nInsertReorderBarrier(mRenderer, true); 184 } 185 186 @Override 187 public void insertInorderBarrier() { 188 nInsertReorderBarrier(mRenderer, false); 189 } 190 191 private static native void nInsertReorderBarrier(long renderer, boolean enableReorder); 192 193 @Override 194 public int onPreDraw(Rect dirty) { 195 if (dirty != null) { 196 return nPrepareDirty(mRenderer, dirty.left, dirty.top, dirty.right, dirty.bottom, 197 mOpaque); 198 } else { 199 return nPrepare(mRenderer, mOpaque); 200 } 201 } 202 203 private static native int nPrepare(long renderer, boolean opaque); 204 private static native int nPrepareDirty(long renderer, int left, int top, int right, int bottom, 205 boolean opaque); 206 207 @Override 208 public void onPostDraw() { 209 nFinish(mRenderer); 210 } 211 212 private static native void nFinish(long renderer); 213 214 /////////////////////////////////////////////////////////////////////////// 215 // Functor 216 /////////////////////////////////////////////////////////////////////////// 217 218 @Override 219 public int callDrawGLFunction(long drawGLFunction) { 220 return nCallDrawGLFunction(mRenderer, drawGLFunction); 221 } 222 223 private static native int nCallDrawGLFunction(long renderer, long drawGLFunction); 224 225 /////////////////////////////////////////////////////////////////////////// 226 // Display list 227 /////////////////////////////////////////////////////////////////////////// 228 229 protected static native long nFinishRecording(long renderer); 230 231 @Override 232 public int drawRenderNode(RenderNode renderNode, Rect dirty, int flags) { 233 return nDrawRenderNode(mRenderer, renderNode.getNativeDisplayList(), dirty, flags); 234 } 235 236 private static native int nDrawRenderNode(long renderer, long renderNode, 237 Rect dirty, int flags); 238 239 /////////////////////////////////////////////////////////////////////////// 240 // Hardware layer 241 /////////////////////////////////////////////////////////////////////////// 242 243 void drawHardwareLayer(HardwareLayer layer, float x, float y, Paint paint) { 244 layer.setLayerPaint(paint); 245 nDrawLayer(mRenderer, layer.getLayer(), x, y); 246 } 247 248 private static native void nDrawLayer(long renderer, long layer, float x, float y); 249 250 /////////////////////////////////////////////////////////////////////////// 251 // Support 252 /////////////////////////////////////////////////////////////////////////// 253 254 private Rect getInternalClipBounds() { 255 if (mClipBounds == null) mClipBounds = new Rect(); 256 return mClipBounds; 257 } 258 259 260 private RectF getPathBounds() { 261 if (mPathBounds == null) mPathBounds = new RectF(); 262 return mPathBounds; 263 } 264 265 private float[] getPointStorage() { 266 if (mPoint == null) mPoint = new float[2]; 267 return mPoint; 268 } 269 270 private float[] getLineStorage() { 271 if (mLine == null) mLine = new float[4]; 272 return mLine; 273 } 274 275 /////////////////////////////////////////////////////////////////////////// 276 // Clipping 277 /////////////////////////////////////////////////////////////////////////// 278 279 @Override 280 public boolean clipPath(Path path) { 281 return nClipPath(mRenderer, path.mNativePath, Region.Op.INTERSECT.nativeInt); 282 } 283 284 @Override 285 public boolean clipPath(Path path, Region.Op op) { 286 return nClipPath(mRenderer, path.mNativePath, op.nativeInt); 287 } 288 289 private static native boolean nClipPath(long renderer, long path, int op); 290 291 @Override 292 public boolean clipRect(float left, float top, float right, float bottom) { 293 return nClipRect(mRenderer, left, top, right, bottom, Region.Op.INTERSECT.nativeInt); 294 } 295 296 private static native boolean nClipRect(long renderer, float left, float top, 297 float right, float bottom, int op); 298 299 @Override 300 public boolean clipRect(float left, float top, float right, float bottom, Region.Op op) { 301 return nClipRect(mRenderer, left, top, right, bottom, op.nativeInt); 302 } 303 304 @Override 305 public boolean clipRect(int left, int top, int right, int bottom) { 306 return nClipRect(mRenderer, left, top, right, bottom, Region.Op.INTERSECT.nativeInt); 307 } 308 309 private static native boolean nClipRect(long renderer, int left, int top, 310 int right, int bottom, int op); 311 312 @Override 313 public boolean clipRect(Rect rect) { 314 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 315 Region.Op.INTERSECT.nativeInt); 316 } 317 318 @Override 319 public boolean clipRect(Rect rect, Region.Op op) { 320 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, op.nativeInt); 321 } 322 323 @Override 324 public boolean clipRect(RectF rect) { 325 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 326 Region.Op.INTERSECT.nativeInt); 327 } 328 329 @Override 330 public boolean clipRect(RectF rect, Region.Op op) { 331 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, op.nativeInt); 332 } 333 334 @Override 335 public boolean clipRegion(Region region) { 336 return nClipRegion(mRenderer, region.mNativeRegion, Region.Op.INTERSECT.nativeInt); 337 } 338 339 @Override 340 public boolean clipRegion(Region region, Region.Op op) { 341 return nClipRegion(mRenderer, region.mNativeRegion, op.nativeInt); 342 } 343 344 private static native boolean nClipRegion(long renderer, long region, int op); 345 346 @Override 347 public boolean getClipBounds(Rect bounds) { 348 return nGetClipBounds(mRenderer, bounds); 349 } 350 351 private static native boolean nGetClipBounds(long renderer, Rect bounds); 352 353 @Override 354 public boolean quickReject(float left, float top, float right, float bottom, EdgeType type) { 355 return nQuickReject(mRenderer, left, top, right, bottom); 356 } 357 358 private static native boolean nQuickReject(long renderer, float left, float top, 359 float right, float bottom); 360 361 @Override 362 public boolean quickReject(Path path, EdgeType type) { 363 RectF pathBounds = getPathBounds(); 364 path.computeBounds(pathBounds, true); 365 return nQuickReject(mRenderer, pathBounds.left, pathBounds.top, 366 pathBounds.right, pathBounds.bottom); 367 } 368 369 @Override 370 public boolean quickReject(RectF rect, EdgeType type) { 371 return nQuickReject(mRenderer, rect.left, rect.top, rect.right, rect.bottom); 372 } 373 374 /////////////////////////////////////////////////////////////////////////// 375 // Transformations 376 /////////////////////////////////////////////////////////////////////////// 377 378 @Override 379 public void translate(float dx, float dy) { 380 if (dx != 0.0f || dy != 0.0f) nTranslate(mRenderer, dx, dy); 381 } 382 383 private static native void nTranslate(long renderer, float dx, float dy); 384 385 @Override 386 public void skew(float sx, float sy) { 387 nSkew(mRenderer, sx, sy); 388 } 389 390 private static native void nSkew(long renderer, float sx, float sy); 391 392 @Override 393 public void rotate(float degrees) { 394 nRotate(mRenderer, degrees); 395 } 396 397 private static native void nRotate(long renderer, float degrees); 398 399 @Override 400 public void scale(float sx, float sy) { 401 nScale(mRenderer, sx, sy); 402 } 403 404 private static native void nScale(long renderer, float sx, float sy); 405 406 @Override 407 public void setMatrix(Matrix matrix) { 408 nSetMatrix(mRenderer, matrix == null ? 0 : matrix.native_instance); 409 } 410 411 private static native void nSetMatrix(long renderer, long matrix); 412 413 @SuppressWarnings("deprecation") 414 @Override 415 public void getMatrix(Matrix matrix) { 416 nGetMatrix(mRenderer, matrix.native_instance); 417 } 418 419 private static native void nGetMatrix(long renderer, long matrix); 420 421 @Override 422 public void concat(Matrix matrix) { 423 if (matrix != null) nConcatMatrix(mRenderer, matrix.native_instance); 424 } 425 426 private static native void nConcatMatrix(long renderer, long matrix); 427 428 /////////////////////////////////////////////////////////////////////////// 429 // State management 430 /////////////////////////////////////////////////////////////////////////// 431 432 @Override 433 public int save() { 434 return nSave(mRenderer, Canvas.CLIP_SAVE_FLAG | Canvas.MATRIX_SAVE_FLAG); 435 } 436 437 @Override 438 public int save(int saveFlags) { 439 return nSave(mRenderer, saveFlags); 440 } 441 442 private static native int nSave(long renderer, int flags); 443 444 @Override 445 public int saveLayer(RectF bounds, Paint paint, int saveFlags) { 446 if (bounds != null) { 447 return saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom, paint, saveFlags); 448 } 449 450 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 451 return nSaveLayer(mRenderer, nativePaint, saveFlags); 452 } 453 454 private static native int nSaveLayer(long renderer, long paint, int saveFlags); 455 456 @Override 457 public int saveLayer(float left, float top, float right, float bottom, Paint paint, 458 int saveFlags) { 459 if (left < right && top < bottom) { 460 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 461 return nSaveLayer(mRenderer, left, top, right, bottom, nativePaint, saveFlags); 462 } 463 return save(saveFlags); 464 } 465 466 private static native int nSaveLayer(long renderer, float left, float top, 467 float right, float bottom, long paint, int saveFlags); 468 469 @Override 470 public int saveLayerAlpha(RectF bounds, int alpha, int saveFlags) { 471 if (bounds != null) { 472 return saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom, 473 alpha, saveFlags); 474 } 475 return nSaveLayerAlpha(mRenderer, alpha, saveFlags); 476 } 477 478 private static native int nSaveLayerAlpha(long renderer, int alpha, int saveFlags); 479 480 @Override 481 public int saveLayerAlpha(float left, float top, float right, float bottom, int alpha, 482 int saveFlags) { 483 if (left < right && top < bottom) { 484 return nSaveLayerAlpha(mRenderer, left, top, right, bottom, alpha, saveFlags); 485 } 486 return save(saveFlags); 487 } 488 489 private static native int nSaveLayerAlpha(long renderer, float left, float top, float right, 490 float bottom, int alpha, int saveFlags); 491 492 @Override 493 public void restore() { 494 nRestore(mRenderer); 495 } 496 497 private static native void nRestore(long renderer); 498 499 @Override 500 public void restoreToCount(int saveCount) { 501 nRestoreToCount(mRenderer, saveCount); 502 } 503 504 private static native void nRestoreToCount(long renderer, int saveCount); 505 506 @Override 507 public int getSaveCount() { 508 return nGetSaveCount(mRenderer); 509 } 510 511 private static native int nGetSaveCount(long renderer); 512 513 /////////////////////////////////////////////////////////////////////////// 514 // Filtering 515 /////////////////////////////////////////////////////////////////////////// 516 517 @Override 518 public void setDrawFilter(DrawFilter filter) { 519 mFilter = filter; 520 if (filter == null) { 521 nResetPaintFilter(mRenderer); 522 } else if (filter instanceof PaintFlagsDrawFilter) { 523 PaintFlagsDrawFilter flagsFilter = (PaintFlagsDrawFilter) filter; 524 nSetupPaintFilter(mRenderer, flagsFilter.clearBits, flagsFilter.setBits); 525 } 526 } 527 528 private static native void nResetPaintFilter(long renderer); 529 private static native void nSetupPaintFilter(long renderer, int clearBits, int setBits); 530 531 @Override 532 public DrawFilter getDrawFilter() { 533 return mFilter; 534 } 535 536 /////////////////////////////////////////////////////////////////////////// 537 // Drawing 538 /////////////////////////////////////////////////////////////////////////// 539 540 @Override 541 public void drawArc(float left, float top, float right, float bottom, 542 float startAngle, float sweepAngle, boolean useCenter, Paint paint) { 543 nDrawArc(mRenderer, left, top, right, bottom, 544 startAngle, sweepAngle, useCenter, paint.mNativePaint); 545 } 546 547 private static native void nDrawArc(long renderer, float left, float top, 548 float right, float bottom, float startAngle, float sweepAngle, 549 boolean useCenter, long paint); 550 551 @Override 552 public void drawARGB(int a, int r, int g, int b) { 553 drawColor((a & 0xFF) << 24 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 554 } 555 556 @Override 557 public void drawPatch(NinePatch patch, Rect dst, Paint paint) { 558 Bitmap bitmap = patch.getBitmap(); 559 throwIfCannotDraw(bitmap); 560 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 561 nDrawPatch(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, patch.mNativeChunk, 562 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 563 } 564 565 @Override 566 public void drawPatch(NinePatch patch, RectF dst, Paint paint) { 567 Bitmap bitmap = patch.getBitmap(); 568 throwIfCannotDraw(bitmap); 569 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 570 nDrawPatch(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, patch.mNativeChunk, 571 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 572 } 573 574 private static native void nDrawPatch(long renderer, long bitmap, byte[] buffer, long chunk, 575 float left, float top, float right, float bottom, long paint); 576 577 @Override 578 public void drawBitmap(Bitmap bitmap, float left, float top, Paint paint) { 579 throwIfCannotDraw(bitmap); 580 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 581 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, nativePaint); 582 } 583 584 private static native void nDrawBitmap(long renderer, long bitmap, byte[] buffer, 585 float left, float top, long paint); 586 587 @Override 588 public void drawBitmap(Bitmap bitmap, Matrix matrix, Paint paint) { 589 throwIfCannotDraw(bitmap); 590 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 591 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, 592 matrix.native_instance, nativePaint); 593 } 594 595 private static native void nDrawBitmap(long renderer, long bitmap, byte[] buffer, 596 long matrix, long paint); 597 598 @Override 599 public void drawBitmap(Bitmap bitmap, Rect src, Rect dst, Paint paint) { 600 throwIfCannotDraw(bitmap); 601 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 602 603 int left, top, right, bottom; 604 if (src == null) { 605 left = top = 0; 606 right = bitmap.getWidth(); 607 bottom = bitmap.getHeight(); 608 } else { 609 left = src.left; 610 right = src.right; 611 top = src.top; 612 bottom = src.bottom; 613 } 614 615 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, right, bottom, 616 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 617 } 618 619 @Override 620 public void drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint) { 621 throwIfCannotDraw(bitmap); 622 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 623 624 float left, top, right, bottom; 625 if (src == null) { 626 left = top = 0; 627 right = bitmap.getWidth(); 628 bottom = bitmap.getHeight(); 629 } else { 630 left = src.left; 631 right = src.right; 632 top = src.top; 633 bottom = src.bottom; 634 } 635 636 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, right, bottom, 637 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 638 } 639 640 private static native void nDrawBitmap(long renderer, long bitmap, byte[] buffer, 641 float srcLeft, float srcTop, float srcRight, float srcBottom, 642 float left, float top, float right, float bottom, long paint); 643 644 @Override 645 public void drawBitmap(int[] colors, int offset, int stride, float x, float y, 646 int width, int height, boolean hasAlpha, Paint paint) { 647 if (width < 0) { 648 throw new IllegalArgumentException("width must be >= 0"); 649 } 650 651 if (height < 0) { 652 throw new IllegalArgumentException("height must be >= 0"); 653 } 654 655 if (Math.abs(stride) < width) { 656 throw new IllegalArgumentException("abs(stride) must be >= width"); 657 } 658 659 int lastScanline = offset + (height - 1) * stride; 660 int length = colors.length; 661 662 if (offset < 0 || (offset + width > length) || lastScanline < 0 || 663 (lastScanline + width > length)) { 664 throw new ArrayIndexOutOfBoundsException(); 665 } 666 667 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 668 nDrawBitmap(mRenderer, colors, offset, stride, x, y, 669 width, height, hasAlpha, nativePaint); 670 } 671 672 private static native void nDrawBitmap(long renderer, int[] colors, int offset, int stride, 673 float x, float y, int width, int height, boolean hasAlpha, long nativePaint); 674 675 @Override 676 public void drawBitmap(int[] colors, int offset, int stride, int x, int y, 677 int width, int height, boolean hasAlpha, Paint paint) { 678 drawBitmap(colors, offset, stride, (float) x, (float) y, width, height, hasAlpha, paint); 679 } 680 681 @Override 682 public void drawBitmapMesh(Bitmap bitmap, int meshWidth, int meshHeight, float[] verts, 683 int vertOffset, int[] colors, int colorOffset, Paint paint) { 684 throwIfCannotDraw(bitmap); 685 if (meshWidth < 0 || meshHeight < 0 || vertOffset < 0 || colorOffset < 0) { 686 throw new ArrayIndexOutOfBoundsException(); 687 } 688 689 if (meshWidth == 0 || meshHeight == 0) { 690 return; 691 } 692 693 final int count = (meshWidth + 1) * (meshHeight + 1); 694 checkRange(verts.length, vertOffset, count * 2); 695 696 if (colors != null) { 697 checkRange(colors.length, colorOffset, count); 698 } 699 700 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 701 nDrawBitmapMesh(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, meshWidth, meshHeight, 702 verts, vertOffset, colors, colorOffset, nativePaint); 703 } 704 705 private static native void nDrawBitmapMesh(long renderer, long bitmap, byte[] buffer, 706 int meshWidth, int meshHeight, float[] verts, int vertOffset, 707 int[] colors, int colorOffset, long paint); 708 709 @Override 710 public void drawCircle(float cx, float cy, float radius, Paint paint) { 711 nDrawCircle(mRenderer, cx, cy, radius, paint.mNativePaint); 712 } 713 714 private static native void nDrawCircle(long renderer, float cx, float cy, 715 float radius, long paint); 716 717 @Override 718 public void drawCircle(CanvasProperty<Float> cx, CanvasProperty<Float> cy, 719 CanvasProperty<Float> radius, CanvasProperty<Paint> paint) { 720 nDrawCircle(mRenderer, cx.getNativeContainer(), cy.getNativeContainer(), 721 radius.getNativeContainer(), paint.getNativeContainer()); 722 } 723 724 private static native void nDrawCircle(long renderer, long propCx, 725 long propCy, long propRadius, long propPaint); 726 727 @Override 728 public void drawRoundRect(CanvasProperty<Float> left, CanvasProperty<Float> top, 729 CanvasProperty<Float> right, CanvasProperty<Float> bottom, CanvasProperty<Float> rx, 730 CanvasProperty<Float> ry, CanvasProperty<Paint> paint) { 731 nDrawRoundRect(mRenderer, left.getNativeContainer(), top.getNativeContainer(), 732 right.getNativeContainer(), bottom.getNativeContainer(), 733 rx.getNativeContainer(), ry.getNativeContainer(), 734 paint.getNativeContainer()); 735 } 736 737 private static native void nDrawRoundRect(long renderer, long propLeft, long propTop, 738 long propRight, long propBottom, long propRx, long propRy, long propPaint); 739 740 @Override 741 public void drawColor(int color) { 742 drawColor(color, PorterDuff.Mode.SRC_OVER); 743 } 744 745 @Override 746 public void drawColor(int color, PorterDuff.Mode mode) { 747 nDrawColor(mRenderer, color, mode.nativeInt); 748 } 749 750 private static native void nDrawColor(long renderer, int color, int mode); 751 752 @Override 753 public void drawLine(float startX, float startY, float stopX, float stopY, Paint paint) { 754 float[] line = getLineStorage(); 755 line[0] = startX; 756 line[1] = startY; 757 line[2] = stopX; 758 line[3] = stopY; 759 drawLines(line, 0, 4, paint); 760 } 761 762 @Override 763 public void drawLines(float[] pts, int offset, int count, Paint paint) { 764 if (count < 4) return; 765 766 if ((offset | count) < 0 || offset + count > pts.length) { 767 throw new IllegalArgumentException("The lines array must contain 4 elements per line."); 768 } 769 nDrawLines(mRenderer, pts, offset, count, paint.mNativePaint); 770 } 771 772 private static native void nDrawLines(long renderer, float[] points, 773 int offset, int count, long paint); 774 775 @Override 776 public void drawLines(float[] pts, Paint paint) { 777 drawLines(pts, 0, pts.length, paint); 778 } 779 780 @Override 781 public void drawOval(float left, float top, float right, float bottom, Paint paint) { 782 nDrawOval(mRenderer, left, top, right, bottom, paint.mNativePaint); 783 } 784 785 private static native void nDrawOval(long renderer, float left, float top, 786 float right, float bottom, long paint); 787 788 @Override 789 public void drawPaint(Paint paint) { 790 final Rect r = getInternalClipBounds(); 791 nGetClipBounds(mRenderer, r); 792 drawRect(r.left, r.top, r.right, r.bottom, paint); 793 } 794 795 @Override 796 public void drawPath(Path path, Paint paint) { 797 if (path.isSimplePath) { 798 if (path.rects != null) { 799 nDrawRects(mRenderer, path.rects.mNativeRegion, paint.mNativePaint); 800 } 801 } else { 802 nDrawPath(mRenderer, path.mNativePath, paint.mNativePaint); 803 } 804 } 805 806 private static native void nDrawPath(long renderer, long path, long paint); 807 private static native void nDrawRects(long renderer, long region, long paint); 808 809 @Override 810 public void drawPicture(Picture picture) { 811 picture.endRecording(); 812 // TODO: Implement rendering 813 } 814 815 @Override 816 public void drawPoint(float x, float y, Paint paint) { 817 float[] point = getPointStorage(); 818 point[0] = x; 819 point[1] = y; 820 drawPoints(point, 0, 2, paint); 821 } 822 823 @Override 824 public void drawPoints(float[] pts, Paint paint) { 825 drawPoints(pts, 0, pts.length, paint); 826 } 827 828 @Override 829 public void drawPoints(float[] pts, int offset, int count, Paint paint) { 830 if (count < 2) return; 831 832 nDrawPoints(mRenderer, pts, offset, count, paint.mNativePaint); 833 } 834 835 private static native void nDrawPoints(long renderer, float[] points, 836 int offset, int count, long paint); 837 838 // Note: drawPosText just uses implementation in Canvas 839 840 @Override 841 public void drawRect(float left, float top, float right, float bottom, Paint paint) { 842 if (left == right || top == bottom) return; 843 nDrawRect(mRenderer, left, top, right, bottom, paint.mNativePaint); 844 } 845 846 private static native void nDrawRect(long renderer, float left, float top, 847 float right, float bottom, long paint); 848 849 @Override 850 public void drawRect(Rect r, Paint paint) { 851 drawRect(r.left, r.top, r.right, r.bottom, paint); 852 } 853 854 @Override 855 public void drawRect(RectF r, Paint paint) { 856 drawRect(r.left, r.top, r.right, r.bottom, paint); 857 } 858 859 @Override 860 public void drawRGB(int r, int g, int b) { 861 drawColor(0xFF000000 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 862 } 863 864 @Override 865 public void drawRoundRect(float left, float top, float right, float bottom, float rx, float ry, 866 Paint paint) { 867 nDrawRoundRect(mRenderer, left, top, right, bottom, rx, ry, paint.mNativePaint); 868 } 869 870 private static native void nDrawRoundRect(long renderer, float left, float top, 871 float right, float bottom, float rx, float y, long paint); 872 873 @Override 874 public void drawText(char[] text, int index, int count, float x, float y, Paint paint) { 875 if ((index | count | (index + count) | (text.length - index - count)) < 0) { 876 throw new IndexOutOfBoundsException(); 877 } 878 879 nDrawText(mRenderer, text, index, count, x, y, 880 paint.mBidiFlags, paint.mNativePaint, paint.mNativeTypeface); 881 } 882 883 private static native void nDrawText(long renderer, char[] text, int index, int count, 884 float x, float y, int bidiFlags, long paint, long typeface); 885 886 @Override 887 public void drawText(CharSequence text, int start, int end, float x, float y, Paint paint) { 888 if (text instanceof String || text instanceof SpannedString || 889 text instanceof SpannableString) { 890 nDrawText(mRenderer, text.toString(), start, end, x, y, paint.mBidiFlags, 891 paint.mNativePaint, paint.mNativeTypeface); 892 } else if (text instanceof GraphicsOperations) { 893 ((GraphicsOperations) text).drawText(this, start, end, x, y, paint); 894 } else { 895 char[] buf = TemporaryBuffer.obtain(end - start); 896 TextUtils.getChars(text, start, end, buf, 0); 897 nDrawText(mRenderer, buf, 0, end - start, x, y, 898 paint.mBidiFlags, paint.mNativePaint, paint.mNativeTypeface); 899 TemporaryBuffer.recycle(buf); 900 } 901 } 902 903 @Override 904 public void drawText(String text, int start, int end, float x, float y, Paint paint) { 905 if ((start | end | (end - start) | (text.length() - end)) < 0) { 906 throw new IndexOutOfBoundsException(); 907 } 908 909 nDrawText(mRenderer, text, start, end, x, y, 910 paint.mBidiFlags, paint.mNativePaint, paint.mNativeTypeface); 911 } 912 913 private static native void nDrawText(long renderer, String text, int start, int end, 914 float x, float y, int bidiFlags, long paint, long typeface); 915 916 @Override 917 public void drawText(String text, float x, float y, Paint paint) { 918 nDrawText(mRenderer, text, 0, text.length(), x, y, 919 paint.mBidiFlags, paint.mNativePaint, paint.mNativeTypeface); 920 } 921 922 @Override 923 public void drawTextOnPath(char[] text, int index, int count, Path path, float hOffset, 924 float vOffset, Paint paint) { 925 if (index < 0 || index + count > text.length) { 926 throw new ArrayIndexOutOfBoundsException(); 927 } 928 929 nDrawTextOnPath(mRenderer, text, index, count, path.mNativePath, hOffset, vOffset, 930 paint.mBidiFlags, paint.mNativePaint, paint.mNativeTypeface); 931 } 932 933 private static native void nDrawTextOnPath(long renderer, char[] text, int index, int count, 934 long path, float hOffset, float vOffset, int bidiFlags, long nativePaint, 935 long typeface); 936 937 @Override 938 public void drawTextOnPath(String text, Path path, float hOffset, float vOffset, Paint paint) { 939 if (text.length() == 0) return; 940 941 nDrawTextOnPath(mRenderer, text, 0, text.length(), path.mNativePath, hOffset, vOffset, 942 paint.mBidiFlags, paint.mNativePaint, paint.mNativeTypeface); 943 } 944 945 private static native void nDrawTextOnPath(long renderer, String text, int start, int end, 946 long path, float hOffset, float vOffset, int bidiFlags, long nativePaint, 947 long typeface); 948 949 @Override 950 public void drawTextRun(char[] text, int index, int count, int contextIndex, int contextCount, 951 float x, float y, boolean isRtl, Paint paint) { 952 if ((index | count | text.length - index - count) < 0) { 953 throw new IndexOutOfBoundsException(); 954 } 955 956 nDrawTextRun(mRenderer, text, index, count, contextIndex, contextCount, x, y, isRtl, 957 paint.mNativePaint, paint.mNativeTypeface); 958 } 959 960 private static native void nDrawTextRun(long renderer, char[] text, int index, int count, 961 int contextIndex, int contextCount, float x, float y, boolean isRtl, long nativePaint, long nativeTypeface); 962 963 @Override 964 public void drawTextRun(CharSequence text, int start, int end, int contextStart, int contextEnd, 965 float x, float y, boolean isRtl, Paint paint) { 966 if ((start | end | end - start | text.length() - end) < 0) { 967 throw new IndexOutOfBoundsException(); 968 } 969 970 if (text instanceof String || text instanceof SpannedString || 971 text instanceof SpannableString) { 972 nDrawTextRun(mRenderer, text.toString(), start, end, contextStart, 973 contextEnd, x, y, isRtl, paint.mNativePaint, paint.mNativeTypeface); 974 } else if (text instanceof GraphicsOperations) { 975 ((GraphicsOperations) text).drawTextRun(this, start, end, 976 contextStart, contextEnd, x, y, isRtl, paint); 977 } else { 978 int contextLen = contextEnd - contextStart; 979 int len = end - start; 980 char[] buf = TemporaryBuffer.obtain(contextLen); 981 TextUtils.getChars(text, contextStart, contextEnd, buf, 0); 982 nDrawTextRun(mRenderer, buf, start - contextStart, len, 0, contextLen, 983 x, y, isRtl, paint.mNativePaint, paint.mNativeTypeface); 984 TemporaryBuffer.recycle(buf); 985 } 986 } 987 988 private static native void nDrawTextRun(long renderer, String text, int start, int end, 989 int contextStart, int contextEnd, float x, float y, boolean isRtl, long nativePaint, long nativeTypeface); 990 991 @Override 992 public void drawVertices(VertexMode mode, int vertexCount, float[] verts, int vertOffset, 993 float[] texs, int texOffset, int[] colors, int colorOffset, short[] indices, 994 int indexOffset, int indexCount, Paint paint) { 995 // TODO: Implement 996 } 997 } 998
