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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkSGGroup.h"
namespace sksg {
Group::Group() {}
Group::~Group() {
for (const auto& child : fChildren) {
this->unobserveInval(child);
}
}
void Group::addChild(sk_sp<RenderNode> node) {
// should we allow duplicates?
for (const auto& child : fChildren) {
if (child == node) {
return;
}
}
this->observeInval(node);
fChildren.push_back(std::move(node));
this->invalidate();
}
void Group::removeChild(const sk_sp<RenderNode>& node) {
int origCount = fChildren.count();
for (int i = 0; i < origCount; ++i) {
if (fChildren[i] == node) {
fChildren.removeShuffle(i);
this->unobserveInval(node);
break;
}
}
SkASSERT(fChildren.count() == origCount - 1);
this->invalidate();
}
void Group::onRender(SkCanvas* canvas) const {
for (const auto& child : fChildren) {
child->render(canvas);
}
}
SkRect Group::onRevalidate(InvalidationController* ic, const SkMatrix& ctm) {
SkASSERT(this->hasInval());
SkRect bounds = SkRect::MakeEmpty();
for (const auto& child : fChildren) {
bounds.join(child->revalidate(ic, ctm));
}
return bounds;
}
} // namespace sksg
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