12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970 |
- /*
- * Copyright 2014 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "gm/gm.h"
- #include "include/core/SkCanvas.h"
- #include "include/core/SkColor.h"
- #include "include/core/SkPaint.h"
- #include "include/core/SkRect.h"
- #include "include/core/SkRegion.h"
- // This GM exercises the use case found in crbug.com/423834.
- // The following pattern:
- // save();
- // clipRect(rect, noAA);
- // drawRect(bigRect, noAA);
- // restore();
- //
- // drawRect(rect, noAA);
- // can leave 1 pixel wide remnants of the first rect.
- static void Draw(SkCanvas* canvas, const SkRect& rect) {
- SkPaint p;
- p.setAntiAlias(false);
- const SkRect bigRect = SkRect::MakeWH(600, 600);
- canvas->save();
- // draw a black rect through the clip
- canvas->save();
- canvas->clipRect(rect);
- canvas->drawRect(bigRect, p);
- canvas->restore();
- // now draw the white rect on top
- p.setColor(SK_ColorWHITE);
- canvas->drawRect(rect, p);
- canvas->restore();
- }
- DEF_SIMPLE_GM_BG(clipdrawdraw, canvas, 512, 512, 0xFFCCCCCC) {
- // Vertical remnant
- const SkRect rect1 = SkRect::MakeLTRB(136.5f, 137.5f, 338.5f, 293.5f);
- // Horizontal remnant
- // 179.488 rounds the right way (i.e., 179), 179.499 rounds the wrong way (i.e., 180)
- const SkRect rect2 = SkRect::MakeLTRB(207.5f, 179.499f, 530.5f, 429.5f);
- Draw(canvas, rect1);
- Draw(canvas, rect2);
- }
- ///////////////////////////////////////////////////////////////////////////////////////////////////
- DEF_SIMPLE_GM(clip_region, canvas, 256, 256) {
- SkRegion rgn({ 10, 10, 100, 100 });
- canvas->save();
- canvas->clipRegion(rgn);
- canvas->drawColor(SK_ColorRED);
- canvas->restore();
- SkRect bounds = { 30, 30, 80, 80 };
- canvas->saveLayer(&bounds, nullptr);
- canvas->clipRegion(rgn);
- canvas->drawColor(SK_ColorBLUE);
- canvas->restore();
- }
|