thorvg/src/renderer/tvgAccessor.cpp
2025-01-03 14:32:31 +09:00

100 lines
2.8 KiB
C++

/*
* Copyright (c) 2021 - 2025 the ThorVG project. 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"
#include "tvgCompressor.h"
/************************************************************************/
/* Internal Class Implementation */
/************************************************************************/
static bool accessChildren(Iterator* it, function<bool(const Paint* paint, void* data)> func, void* data)
{
while (auto child = it->next()) {
//Access the child
if (!func(child, data)) return false;
//Access the children of the child
if (auto it2 = IteratorAccessor::iterator(child)) {
if (!accessChildren(it2, func, data)) {
delete(it2);
return false;
}
delete(it2);
}
}
return true;
}
/************************************************************************/
/* External Class Implementation */
/************************************************************************/
Result Accessor::set(Paint* paint, function<bool(const Paint* paint, void* data)> func, void* data) noexcept
{
if (!paint || !func) return Result::InvalidArguments;
//Use the Preorder Tree-Search
paint->ref();
//Root
if (!func(paint, data)) {
paint->unref();
return Result::Success;
}
//Children
if (auto it = IteratorAccessor::iterator(paint)) {
accessChildren(it, func, data);
delete(it);
}
paint->unref(false);
return Result::Success;
}
uint32_t Accessor::id(const char* name) noexcept
{
return djb2Encode(name);
}
Accessor::~Accessor()
{
}
Accessor::Accessor() : pImpl(nullptr)
{
}
Accessor* Accessor::gen() noexcept
{
return new Accessor;
}