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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2012 Google Inc. | 3 * Copyright 2012 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 #include "SkBBoxRecord.h" | 9 #include "SkBBoxRecord.h" |
10 | 10 |
11 SkBBoxRecord::~SkBBoxRecord() { | |
12 while (!fSaveStack.empty()) { | |
13 delete fSaveStack.top(); | |
14 fSaveStack.pop(); | |
15 } | |
16 } | |
17 | |
11 void SkBBoxRecord::drawOval(const SkRect& rect, const SkPaint& paint) { | 18 void SkBBoxRecord::drawOval(const SkRect& rect, const SkPaint& paint) { |
12 if (this->transformBounds(rect, &paint)) { | 19 if (this->transformBounds(rect, &paint)) { |
13 INHERITED::drawOval(rect, paint); | 20 INHERITED::drawOval(rect, paint); |
14 } | 21 } |
15 } | 22 } |
16 | 23 |
17 void SkBBoxRecord::drawRRect(const SkRRect& rrect, const SkPaint& paint) { | 24 void SkBBoxRecord::drawRRect(const SkRRect& rrect, const SkPaint& paint) { |
18 if (this->transformBounds(rrect.rect(), &paint)) { | 25 if (this->transformBounds(rrect.rect(), &paint)) { |
19 INHERITED::drawRRect(rrect, paint); | 26 INHERITED::drawRRect(rrect, paint); |
20 } | 27 } |
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280 } | 287 } |
281 } | 288 } |
282 | 289 |
283 void SkBBoxRecord::onDrawPicture(const SkPicture* picture) { | 290 void SkBBoxRecord::onDrawPicture(const SkPicture* picture) { |
284 if (picture->width() > 0 && picture->height() > 0 && | 291 if (picture->width() > 0 && picture->height() > 0 && |
285 this->transformBounds(SkRect::MakeWH(picture->width(), picture->height() ), NULL)) { | 292 this->transformBounds(SkRect::MakeWH(picture->width(), picture->height() ), NULL)) { |
286 this->INHERITED::onDrawPicture(picture); | 293 this->INHERITED::onDrawPicture(picture); |
287 } | 294 } |
288 } | 295 } |
289 | 296 |
297 void SkBBoxRecord::willSave() { | |
298 fSaveStack.push(NULL); | |
299 this->INHERITED::willSave(); | |
300 } | |
301 | |
302 SkCanvas::SaveLayerStrategy SkBBoxRecord::willSaveLayer(const SkRect* bounds, | |
303 const SkPaint* paint, | |
304 SaveFlags flags) { | |
305 fSaveStack.push(paint && paint->getImageFilter() ? new SkPaint(*paint) : NUL L); | |
mtklein
2014/07/11 15:37:14
// The only effects that can affect the bounds of
| |
306 return this->INHERITED::willSaveLayer(bounds, paint, flags); | |
307 } | |
308 | |
309 void SkBBoxRecord::willRestore() { | |
310 delete fSaveStack.top(); | |
311 fSaveStack.pop(); | |
312 this->INHERITED::willRestore(); | |
313 } | |
314 | |
290 bool SkBBoxRecord::transformBounds(const SkRect& bounds, const SkPaint* paint) { | 315 bool SkBBoxRecord::transformBounds(const SkRect& bounds, const SkPaint* paint) { |
291 SkRect outBounds = bounds; | 316 SkRect outBounds = bounds; |
292 outBounds.sort(); | 317 outBounds.sort(); |
293 | 318 |
294 if (paint) { | 319 if (paint) { |
295 // account for stroking, path effects, shadows, etc | 320 // account for stroking, path effects, shadows, etc |
296 if (paint->canComputeFastBounds()) { | 321 if (paint->canComputeFastBounds()) { |
297 SkRect temp; | 322 SkRect temp; |
298 outBounds = paint->computeFastBounds(outBounds, &temp); | 323 outBounds = paint->computeFastBounds(outBounds, &temp); |
299 } else { | 324 } else { |
300 // set bounds to current clip | 325 // set bounds to current clip |
301 if (!this->getClipBounds(&outBounds)) { | 326 if (!this->getClipBounds(&outBounds)) { |
302 // current clip is empty | 327 // current clip is empty |
303 return false; | 328 return false; |
304 } | 329 } |
305 } | 330 } |
306 } | 331 } |
307 | 332 |
333 for (int i = fSaveStack.count() - 1; i >= 0; --i) { | |
334 const SkPaint* paint = fSaveStack.index(i); | |
335 if (paint && paint->canComputeFastBounds()) { | |
336 SkRect temp; | |
337 outBounds = paint->computeFastBounds(outBounds, &temp); | |
338 } | |
339 } | |
340 | |
308 if (!outBounds.isEmpty() && !this->quickReject(outBounds)) { | 341 if (!outBounds.isEmpty() && !this->quickReject(outBounds)) { |
309 this->getTotalMatrix().mapRect(&outBounds); | 342 this->getTotalMatrix().mapRect(&outBounds); |
310 this->handleBBox(outBounds); | 343 this->handleBBox(outBounds); |
311 return true; | 344 return true; |
312 } | 345 } |
313 | 346 |
314 return false; | 347 return false; |
315 } | 348 } |
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