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/*
* Copyright (c) 2021 Samsung Electronics Co., Ltd. All rights reserved.
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "tvgIteratorAccessor.h"
/************************************************************************/
/* Internal Class Implementation */
/************************************************************************/
static bool accessChildren(Iterator* it, bool(*func)(const Paint* paint), IteratorAccessor& itrAccessor)
{
while (auto child = it->next()) {
//Access the child
if (!func(child)) return false;
//Access the children of the child
if (auto it2 = itrAccessor.iterator(child)) {
if (!accessChildren(it2, func, itrAccessor)) {
delete(it2);
return false;
}
delete(it2);
}
}
return true;
}
/************************************************************************/
/* External Class Implementation */
/************************************************************************/
unique_ptr<Picture> Accessor::access(unique_ptr<Picture> picture, bool(*func)(const Paint* paint)) noexcept
{
auto p = picture.get();
if (!p || !func) return picture;
//Use the Preorder Tree-Search
//Root
if (!func(p)) return picture;
//Children
IteratorAccessor itrAccessor;
if (auto it = itrAccessor.iterator(p)) {
accessChildren(it, func, itrAccessor);
delete(it);
}
return picture;
}
Accessor::~Accessor()
{
}
Accessor::Accessor()
{
}
unique_ptr<Accessor> Accessor::gen() noexcept
{
return unique_ptr<Accessor>(new Accessor);
}
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