mirror of
https://github.com/thorvg/thorvg.git
synced 2025-06-07 21:23:32 +00:00
0ebbc614be
- Enhanced Scene management to provide users with more control. - Scenes now support adding specific scenes at defined positions and removing them as needed. - Ensure safe access to Canvas, Scene paints() by adding const specifiers. - Removed virtual specifier for the canvas primitive apis. - Introduced a nested scene in the canvas to remove logic duplication. C++ API Modification: - Result Scene::push(Paint* paint) -> Result Scene::push(Paint* target, Paint* at = nullptr) - Result Scene::clear(bool free = true) -> Result Scene::remove(Paint* paint = nullptr) - Result Canvas::push(Paint* paint) -> Result Canvas::push(Paint* target, Paint* at = nullptr) - list<Paint*>& Scene::paints() -> const list<Paint*>& Scene::paints() const - list<Paint*>& Canvas::paints() -> const list<Paint*>& Canvas::paints() const C++ API Addition: - Result Canvas::remove(Paint* paint = nullptr); C API Modifications: - Tvg_Result tvg_scene_clear(Tvg_Paint* scene, bool free) -> Tvg_Result tvg_scene_remove(Tvg_Paint* scene, Tvg_Paint* paint) C API Addition: - Tvg_Result tvg_scene_push_at(Tvg_Paint* scene, Tvg_Paint* target, Tvg_Paint* at) - Tvg_Result tvg_canvas_push_at(Tvg_Canvas* canvas, Tvg_Paint* target, Tvg_Paint* at) - Tvg_Result tvg_canvas_remove(Tvg_Canvas* canvas, Tvg_Paint* paint) issue: https://github.com/thorvg/thorvg/issues/2957 issue: https://github.com/thorvg/thorvg/issues/1372
120 lines
3.1 KiB
C++
120 lines
3.1 KiB
C++
/*
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* Copyright (c) 2020 - 2024 the ThorVG project. All rights reserved.
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <cstdarg>
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#include "tvgScene.h"
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/************************************************************************/
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/* Internal Class Implementation */
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/************************************************************************/
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Result Scene::Impl::resetEffects()
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{
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if (effects) {
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for (auto e = effects->begin(); e < effects->end(); ++e) {
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delete(*e);
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}
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delete(effects);
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effects = nullptr;
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}
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return Result::Success;
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}
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/************************************************************************/
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/* External Class Implementation */
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/************************************************************************/
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Scene::Scene() : pImpl(new Impl(this))
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{
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}
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Scene::~Scene()
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{
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delete(pImpl);
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}
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Scene* Scene::gen() noexcept
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{
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return new Scene;
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}
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Type Scene::type() const noexcept
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{
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return Type::Scene;
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}
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Result Scene::push(Paint* target, Paint* at) noexcept
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{
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if (!target) return Result::InvalidArguments;
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target->ref();
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return pImpl->insert(target, at);
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}
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Result Scene::remove(Paint* paint) noexcept
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{
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if (paint) return pImpl->remove(paint);
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else return pImpl->clearPaints();
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}
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const list<Paint*>& Scene::paints() const noexcept
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{
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return pImpl->paints;
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}
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Result Scene::push(SceneEffect effect, ...) noexcept
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{
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if (effect == SceneEffect::ClearAll) return pImpl->resetEffects();
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if (!pImpl->effects) pImpl->effects = new Array<RenderEffect*>;
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va_list args;
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va_start(args, effect);
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RenderEffect* re = nullptr;
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switch (effect) {
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case SceneEffect::GaussianBlur: {
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re = RenderEffectGaussianBlur::gen(args);
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break;
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}
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case SceneEffect::DropShadow: {
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re = RenderEffectDropShadow::gen(args);
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break;
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}
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default: break;
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}
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if (!re) return Result::InvalidArguments;
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pImpl->effects->push(re);
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return Result::Success;
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}
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