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8dca270a30
Introduce internal PaintMethod since there more derived paint classes are coming. This PaintMethod is a sort of Strategy Pattern method. Change-Id: I29c49f5d4ddbfb9e429d4976636b20b39914ee20
103 lines
No EOL
2.8 KiB
C
103 lines
No EOL
2.8 KiB
C
/*
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* Copyright (c) 2020 Samsung Electronics Co., Ltd All Rights Reserved
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#ifndef _TVG_CANVAS_IMPL_H_
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#define _TVG_CANVAS_IMPL_H_
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#include "tvgCommon.h"
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/************************************************************************/
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/* Internal Class Implementation */
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/************************************************************************/
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struct Canvas::Impl
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{
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vector<Paint*> paints;
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RenderMethod* renderer;
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Impl(RenderMethod* pRenderer):renderer(pRenderer)
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{
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renderer->ref();
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}
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~Impl()
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{
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clear();
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renderer->unref();
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}
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Result push(unique_ptr<Paint> paint)
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{
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auto p = paint.release();
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if (!p) return Result::MemoryCorruption;
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paints.push_back(p);
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return update(p);
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}
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Result clear()
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{
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if (!renderer) return Result::InsufficientCondition;
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//Clear render target before drawing
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if (!renderer->clear()) return Result::InsufficientCondition;
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for (auto paint : paints) {
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paint->IMPL->method->dispose(*renderer);
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delete(paint);
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}
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paints.clear();
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return Result::Success;
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}
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Result update(Paint* paint)
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{
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if (!renderer) return Result::InsufficientCondition;
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//Update single paint node
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if (paint) {
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if (!paint->IMPL->method->update(*renderer, nullptr, RenderUpdateFlag::None)) {
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return Result::InsufficientCondition;
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}
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//Update retained all paint nodes
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} else {
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for(auto paint: paints) {
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if (!paint->IMPL->method->update(*renderer, nullptr, RenderUpdateFlag::None)) {
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return Result::InsufficientCondition;
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}
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}
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}
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return Result::Success;
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}
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Result draw()
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{
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if (!renderer) return Result::InsufficientCondition;
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if (!renderer->preRender()) return Result::InsufficientCondition;
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for(auto paint: paints) {
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if(!paint->IMPL->method->render(*renderer)) return Result::InsufficientCondition;
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}
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if (!renderer->postRender()) return Result::InsufficientCondition;
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return Result::Success;
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}
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};
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#endif /* _TVG_CANVAS_IMPL_H_ */ |