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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 fSaveStack.deleteAll(); |
| 13 } |
| 14 |
11 void SkBBoxRecord::drawOval(const SkRect& rect, const SkPaint& paint) { | 15 void SkBBoxRecord::drawOval(const SkRect& rect, const SkPaint& paint) { |
12 if (this->transformBounds(rect, &paint)) { | 16 if (this->transformBounds(rect, &paint)) { |
13 INHERITED::drawOval(rect, paint); | 17 INHERITED::drawOval(rect, paint); |
14 } | 18 } |
15 } | 19 } |
16 | 20 |
17 void SkBBoxRecord::drawRRect(const SkRRect& rrect, const SkPaint& paint) { | 21 void SkBBoxRecord::drawRRect(const SkRRect& rrect, const SkPaint& paint) { |
18 if (this->transformBounds(rrect.rect(), &paint)) { | 22 if (this->transformBounds(rrect.rect(), &paint)) { |
19 INHERITED::drawRRect(rrect, paint); | 23 INHERITED::drawRRect(rrect, paint); |
20 } | 24 } |
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280 } | 284 } |
281 } | 285 } |
282 | 286 |
283 void SkBBoxRecord::onDrawPicture(const SkPicture* picture) { | 287 void SkBBoxRecord::onDrawPicture(const SkPicture* picture) { |
284 if (picture->width() > 0 && picture->height() > 0 && | 288 if (picture->width() > 0 && picture->height() > 0 && |
285 this->transformBounds(SkRect::MakeWH(picture->width(), picture->height()
), NULL)) { | 289 this->transformBounds(SkRect::MakeWH(picture->width(), picture->height()
), NULL)) { |
286 this->INHERITED::onDrawPicture(picture); | 290 this->INHERITED::onDrawPicture(picture); |
287 } | 291 } |
288 } | 292 } |
289 | 293 |
| 294 void SkBBoxRecord::willSave() { |
| 295 fSaveStack.push(NULL); |
| 296 this->INHERITED::willSave(); |
| 297 } |
| 298 |
| 299 SkCanvas::SaveLayerStrategy SkBBoxRecord::willSaveLayer(const SkRect* bounds, |
| 300 const SkPaint* paint, |
| 301 SaveFlags flags) { |
| 302 // Image filters can affect the effective bounds of primitives drawn inside
saveLayer(). |
| 303 // Copy the paint so we can compute the modified bounds in transformBounds()
. |
| 304 fSaveStack.push(paint && paint->getImageFilter() ? new SkPaint(*paint) : NUL
L); |
| 305 return this->INHERITED::willSaveLayer(bounds, paint, flags); |
| 306 } |
| 307 |
| 308 void SkBBoxRecord::willRestore() { |
| 309 delete fSaveStack.top(); |
| 310 fSaveStack.pop(); |
| 311 this->INHERITED::willRestore(); |
| 312 } |
| 313 |
290 bool SkBBoxRecord::transformBounds(const SkRect& bounds, const SkPaint* paint) { | 314 bool SkBBoxRecord::transformBounds(const SkRect& bounds, const SkPaint* paint) { |
291 SkRect outBounds = bounds; | 315 SkRect outBounds = bounds; |
292 outBounds.sort(); | 316 outBounds.sort(); |
293 | 317 |
294 if (paint) { | 318 if (paint) { |
295 // account for stroking, path effects, shadows, etc | 319 // account for stroking, path effects, shadows, etc |
296 if (paint->canComputeFastBounds()) { | 320 if (paint->canComputeFastBounds()) { |
297 SkRect temp; | 321 SkRect temp; |
298 outBounds = paint->computeFastBounds(outBounds, &temp); | 322 outBounds = paint->computeFastBounds(outBounds, &temp); |
299 } else { | 323 } else { |
300 // set bounds to current clip | 324 // set bounds to current clip |
301 if (!this->getClipBounds(&outBounds)) { | 325 if (!this->getClipBounds(&outBounds)) { |
302 // current clip is empty | 326 // current clip is empty |
303 return false; | 327 return false; |
304 } | 328 } |
305 } | 329 } |
306 } | 330 } |
307 | 331 |
| 332 for (int i = fSaveStack.count() - 1; i >= 0; --i) { |
| 333 const SkPaint* paint = fSaveStack.getAt(i); |
| 334 if (paint && paint->canComputeFastBounds()) { |
| 335 SkRect temp; |
| 336 outBounds = paint->computeFastBounds(outBounds, &temp); |
| 337 } |
| 338 } |
| 339 |
308 if (!outBounds.isEmpty() && !this->quickReject(outBounds)) { | 340 if (!outBounds.isEmpty() && !this->quickReject(outBounds)) { |
309 this->getTotalMatrix().mapRect(&outBounds); | 341 this->getTotalMatrix().mapRect(&outBounds); |
310 this->handleBBox(outBounds); | 342 this->handleBBox(outBounds); |
311 return true; | 343 return true; |
312 } | 344 } |
313 | 345 |
314 return false; | 346 return false; |
315 } | 347 } |
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