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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkGroupShape.h"
SkGroupShape::SkGroupShape() {}
SkGroupShape::~SkGroupShape() {
this->removeAllShapes();
}
int SkGroupShape::countShapes() const {
return fList.count();
}
SkShape* SkGroupShape::getShape(int index, SkMatrixRef** mr) const {
if ((unsigned)index < (unsigned)fList.count()) {
const Rec& rec = fList[index];
if (mr) {
*mr = rec.fMatrixRef;
}
return rec.fShape;
}
return NULL;
}
void SkGroupShape::addShape(int index, SkShape* shape, SkMatrixRef* mr) {
int count = fList.count();
if (NULL == shape || index < 0 || index > count) {
return;
}
shape->ref();
SkMatrixRef::SafeRef(mr);
Rec* rec;
if (index == count) {
rec = fList.append();
} else {
rec = fList.insert(index);
}
rec->fShape = shape;
rec->fMatrixRef = mr;
}
void SkGroupShape::removeShape(int index) {
if ((unsigned)index < (unsigned)fList.count()) {
Rec& rec = fList[index];
rec.fShape->unref();
SkMatrixRef::SafeUnref(rec.fMatrixRef);
fList.remove(index);
}
}
void SkGroupShape::removeAllShapes() {
Rec* rec = fList.begin();
Rec* stop = fList.end();
while (rec < stop) {
rec->fShape->unref();
SkMatrixRef::SafeUnref(rec->fMatrixRef);
rec++;
}
fList.reset();
}
///////////////////////////////////////////////////////////////////////////////
void SkGroupShape::onDraw(SkCanvas* canvas) {
const Rec* rec = fList.begin();
const Rec* stop = fList.end();
while (rec < stop) {
SkShape* shape = rec->fShape;
if (rec->fMatrixRef) {
shape->drawMatrix(canvas, *rec->fMatrixRef);
} else {
shape->draw(canvas);
}
rec++;
}
}
void SkGroupShape::flatten(SkFlattenableWriteBuffer& buffer) const {
this->INHERITED::flatten(buffer);
int count = fList.count();
buffer.write32(count);
const Rec* rec = fList.begin();
const Rec* stop = fList.end();
while (rec < stop) {
buffer.writeFlattenable(rec->fShape);
if (rec->fMatrixRef) {
char storage[SkMatrix::kMaxFlattenSize];
uint32_t size = rec->fMatrixRef->flatten(storage);
buffer.write32(size);
buffer.writePad(storage, size);
} else {
buffer.write32(0);
}
rec += 1;
}
}
SkGroupShape::SkGroupShape(SkFlattenableReadBuffer& buffer) : INHERITED(buffer){
int count = buffer.readS32();
for (int i = 0; i < count; i++) {
SkShape* shape = reinterpret_cast<SkShape*>(buffer.readFlattenable());
SkMatrixRef* mr = NULL;
uint32_t size = buffer.readS32();
if (size) {
char storage[SkMatrix::kMaxFlattenSize];
buffer.read(storage, SkAlign4(size));
mr = SkNEW(SkMatrixRef);
mr->unflatten(storage);
}
if (shape) {
this->appendShape(shape, mr)->unref();
}
SkSafeUnref(mr);
}
}
SK_DEFINE_FLATTENABLE_REGISTRAR(SkGroupShape)
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