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5de098f128
This function sets the value of a specified expression variable within a particular layer. It is useful for dynamically changing the properties of a layer at runtime. Experimental API - Result LottieAnimation::assign(const char* layer, uint32_t ix, const char* variable, float value) - Tvg_Result tvg_lottie_animation_assign(Tvg_Animation* animation, const char* layer, uint32_t ix, const char* var, float val)
102 lines
3.2 KiB
C++
102 lines
3.2 KiB
C++
/*
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* Copyright (c) 2024 - 2025 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 "tvgCommon.h"
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#include "thorvg_lottie.h"
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#include "tvgLottieLoader.h"
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#include "tvgAnimation.h"
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LottieAnimation::LottieAnimation()
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{
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}
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Result LottieAnimation::override(const char* slot) noexcept
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{
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auto loader = PICTURE(pImpl->picture)->loader;
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if (!loader) return Result::InsufficientCondition;
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if (static_cast<LottieLoader*>(loader)->override(slot)) return Result::Success;
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return Result::InvalidArguments;
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}
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Result LottieAnimation::segment(const char* marker) noexcept
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{
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auto loader = PICTURE(pImpl->picture)->loader;
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if (!loader) return Result::InsufficientCondition;
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if (!marker) {
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static_cast<LottieLoader*>(loader)->segment(0.0f, FLT_MAX);
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return Result::Success;
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}
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float begin, end;
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if (!static_cast<LottieLoader*>(loader)->segment(marker, begin, end)) return Result::InvalidArguments;
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return static_cast<LottieLoader*>(loader)->segment(begin, end);
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}
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Result LottieAnimation::tween(float from, float to, float progress) noexcept
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{
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auto loader = PICTURE(pImpl->picture)->loader;
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if (!loader) return Result::InsufficientCondition;
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if (!static_cast<LottieLoader*>(loader)->tween(from, to, progress)) return Result::InsufficientCondition;
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return Result::Success;
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}
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uint32_t LottieAnimation::markersCnt() noexcept
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{
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auto loader = PICTURE(pImpl->picture)->loader;
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if (!loader) return 0;
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return static_cast<LottieLoader*>(loader)->markersCnt();
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}
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const char* LottieAnimation::marker(uint32_t idx) noexcept
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{
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auto loader = PICTURE(pImpl->picture)->loader;
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if (!loader) return nullptr;
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return static_cast<LottieLoader*>(loader)->markers(idx);
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}
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Result LottieAnimation::assign(const char* layer, uint32_t ix, const char* var, float val)
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{
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if (!layer || !var) return Result::InvalidArguments;
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auto loader = PICTURE(pImpl->picture)->loader;
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if (!loader) return Result::InsufficientCondition;
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if (static_cast<LottieLoader*>(loader)->assign(layer, ix, var, val)) return Result::Success;
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return Result::NonSupport;
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}
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LottieAnimation* LottieAnimation::gen() noexcept
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{
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return new LottieAnimation;
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}
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