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.
5 #ifndef CC_BASE_REGION_H_
6 #define CC_BASE_REGION_H_
10 #include "base/logging.h"
11 #include "base/memory/scoped_ptr.h"
12 #include "cc/base/cc_export.h"
13 #include "third_party/skia/include/core/SkRegion.h"
14 #include "ui/gfx/rect.h"
15 #include "ui/gfx/skia_util.h"
23 class CC_EXPORT Region {
26 Region(const Region& region);
27 Region(gfx::Rect rect); // NOLINT(runtime/explicit)
30 const Region& operator=(gfx::Rect rect);
31 const Region& operator=(const Region& region);
33 void Swap(Region* region);
36 int GetRegionComplexity() const;
38 bool Contains(gfx::Point point) const;
39 bool Contains(gfx::Rect rect) const;
40 bool Contains(const Region& region) const;
42 bool Intersects(gfx::Rect rect) const;
43 bool Intersects(const Region& region) const;
45 void Subtract(gfx::Rect rect);
46 void Subtract(const Region& region);
47 void Union(gfx::Rect rect);
48 void Union(const Region& region);
49 void Intersect(gfx::Rect rect);
50 void Intersect(const Region& region);
52 bool Equals(const Region& other) const {
53 return skregion_ == other.skregion_;
56 gfx::Rect bounds() const {
57 return gfx::SkIRectToRect(skregion_.getBounds());
60 std::string ToString() const;
61 scoped_ptr<base::Value> AsValue() const;
63 class CC_EXPORT Iterator {
66 explicit Iterator(const Region& region);
69 gfx::Rect rect() const {
70 return gfx::SkIRectToRect(it_.rect());
77 bool has_rect() const {
82 SkRegion::Iterator it_;
89 inline bool operator==(const Region& a, const Region& b) {
93 inline bool operator!=(const Region& a, const Region& b) {
97 inline Region SubtractRegions(const Region& a, const Region& b) {
103 inline Region SubtractRegions(const Region& a, gfx::Rect b) {
109 inline Region IntersectRegions(const Region& a, const Region& b) {
115 inline Region IntersectRegions(const Region& a, gfx::Rect b) {
121 inline Region UnionRegions(const Region& a, const Region& b) {
127 inline Region UnionRegions(const Region& a, gfx::Rect b) {
135 #endif // CC_BASE_REGION_H_