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/*
* Copyright 2010 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkRasterClip.h"
SkRasterClip::SkRasterClip() {
fIsBW = true;
}
bool SkRasterClip::isEmpty() const {
return fIsBW ? fBW.isEmpty() : fAA.isEmpty();
}
bool SkRasterClip::isRect() const {
return fIsBW ? fBW.isRect() : false;
}
bool SkRasterClip::isComplex() const {
return fIsBW ? fBW.isComplex() : !fAA.isEmpty();
}
const SkIRect& SkRasterClip::getBounds() const {
return fIsBW ? fBW.getBounds() : fAA.getBounds();
}
bool SkRasterClip::setEmpty() {
fIsBW = true;
fBW.setEmpty();
fAA.setEmpty();
return false;
}
bool SkRasterClip::setIRect(const SkIRect& rect) {
fIsBW = true;
fAA.setEmpty();
return fBW.setRect(rect);
}
bool SkRasterClip::setPath(const SkPath& path, const SkRegion& clip, bool doAA) {
if (this->isBW() && !doAA) {
return fBW.setPath(path, clip);
} else {
if (this->isBW()) {
this->convertToAA();
}
return fAA.setPath(path, &clip, doAA);
}
}
bool SkRasterClip::setPath(const SkPath& path, const SkIRect& clip, bool doAA) {
SkRegion tmp;
tmp.setRect(clip);
return this->setPath(path, tmp, doAA);
}
bool SkRasterClip::setPath(const SkPath& path, const SkRasterClip& clip,
bool doAA) {
if (clip.isBW()) {
return this->setPath(path, clip.bwRgn(), doAA);
} else {
SkRegion tmp;
tmp.setRect(clip.getBounds());
if (!this->setPath(path, clip, doAA)) {
return false;
}
return this->op(clip, SkRegion::kIntersect_Op);
}
}
bool SkRasterClip::op(const SkIRect& rect, SkRegion::Op op) {
return fIsBW ? fBW.op(rect, op) : fAA.op(rect, op);
}
bool SkRasterClip::op(const SkRasterClip& clip, SkRegion::Op op) {
if (this->isBW() && clip.isBW()) {
return fBW.op(clip.fBW, op);
} else {
SkAAClip tmp;
const SkAAClip* other;
if (this->isBW()) {
this->convertToAA();
}
if (clip.isBW()) {
tmp.setRegion(clip.bwRgn());
other = &tmp;
} else {
other = &clip.aaRgn();
}
return fAA.op(*other, op);
}
}
void SkRasterClip::convertToAA() {
SkASSERT(fIsBW);
fAA.setRegion(fBW);
fIsBW = false;
}
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