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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/base/region.h"
#include "base/values.h"
namespace cc {
Region::Region() {
}
Region::Region(const Region& region)
: skregion_(region.skregion_) {
}
Region::Region(const gfx::Rect& rect)
: skregion_(gfx::RectToSkIRect(rect)) {
}
Region::~Region() {
}
const Region& Region::operator=(const gfx::Rect& rect) {
skregion_ = SkRegion(gfx::RectToSkIRect(rect));
return *this;
}
const Region& Region::operator=(const Region& region) {
skregion_ = region.skregion_;
return *this;
}
void Region::Swap(Region* region) {
region->skregion_.swap(skregion_);
}
void Region::Clear() {
skregion_.setEmpty();
}
bool Region::IsEmpty() const {
return skregion_.isEmpty();
}
int Region::GetRegionComplexity() const {
return skregion_.computeRegionComplexity();
}
bool Region::Contains(const gfx::Point& point) const {
return skregion_.contains(point.x(), point.y());
}
bool Region::Contains(const gfx::Rect& rect) const {
if (rect.IsEmpty())
return true;
return skregion_.contains(gfx::RectToSkIRect(rect));
}
bool Region::Contains(const Region& region) const {
if (region.IsEmpty())
return true;
return skregion_.contains(region.skregion_);
}
bool Region::Intersects(const gfx::Rect& rect) const {
return skregion_.intersects(gfx::RectToSkIRect(rect));
}
bool Region::Intersects(const Region& region) const {
return skregion_.intersects(region.skregion_);
}
void Region::Subtract(const gfx::Rect& rect) {
skregion_.op(gfx::RectToSkIRect(rect), SkRegion::kDifference_Op);
}
void Region::Subtract(const Region& region) {
skregion_.op(region.skregion_, SkRegion::kDifference_Op);
}
void Region::Union(const gfx::Rect& rect) {
skregion_.op(gfx::RectToSkIRect(rect), SkRegion::kUnion_Op);
}
void Region::Union(const Region& region) {
skregion_.op(region.skregion_, SkRegion::kUnion_Op);
}
void Region::Intersect(const gfx::Rect& rect) {
skregion_.op(gfx::RectToSkIRect(rect), SkRegion::kIntersect_Op);
}
void Region::Intersect(const Region& region) {
skregion_.op(region.skregion_, SkRegion::kIntersect_Op);
}
std::string Region::ToString() const {
if (IsEmpty())
return gfx::Rect().ToString();
std::string result;
for (Iterator it(*this); it.has_rect(); it.next()) {
if (!result.empty())
result += " | ";
result += it.rect().ToString();
}
return result;
}
scoped_ptr<base::Value> Region::AsValue() const {
scoped_ptr<base::ListValue> result(new base::ListValue());
for (Iterator it(*this); it.has_rect(); it.next()) {
gfx::Rect rect(it.rect());
result->AppendInteger(rect.x());
result->AppendInteger(rect.y());
result->AppendInteger(rect.width());
result->AppendInteger(rect.height());
}
return result.PassAs<base::Value>();
}
Region::Iterator::Iterator() {
}
Region::Iterator::Iterator(const Region& region)
: it_(region.skregion_) {
}
Region::Iterator::~Iterator() {
}
} // namespace cc
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