ui/gfx/path_aura.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ui/gfx/path.h"
   6
   7 #include "base/memory/scoped_ptr.h"
   8 #include "third_party/skia/include/core/SkRegion.h"
   9
  10 namespace gfx {
  11
  12 SkRegion* Path::CreateNativeRegion() const {
  13   // Create a clip region that contains |this| path.
  14   const SkRect bounds = getBounds();
  15   SkIRect ibounds;
  16   bounds.round(&ibounds);
  17   SkRegion clip_region;
  18   clip_region.setRect(ibounds);
  19
  20   SkRegion* region = new SkRegion;
  21   region->setPath(*this, clip_region);
  22   return region;
  23 }
  24
  25 // static
  26 NativeRegion Path::IntersectRegions(NativeRegion r1, NativeRegion r2) {
  27   SkRegion* new_region = new SkRegion;
  28   new_region->op(*r1, *r2, SkRegion::kIntersect_Op);
  29   return new_region;
  30 }
  31
  32 // static
  33 NativeRegion Path::CombineRegions(NativeRegion r1, NativeRegion r2) {
  34   SkRegion* new_region = new SkRegion;
  35   new_region->op(*r1, *r2, SkRegion::kUnion_Op);
  36   return new_region;
  37 }
  38
  39 // static
  40 NativeRegion Path::SubtractRegion(NativeRegion r1, NativeRegion r2) {
  41   SkRegion* new_region = new SkRegion;
  42   new_region->op(*r1, *r2, SkRegion::kDifference_Op);
  43   return new_region;
  44 }
  45
  46 }  // namespace gfx