mirror of
https://github.com/thorvg/thorvg.git
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131 lines
No EOL
4.4 KiB
C++
131 lines
No EOL
4.4 KiB
C++
/*
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* Copyright (c) 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 <thorvg_lottie.h>
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#include "Example.h"
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/************************************************************************/
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/* ThorVG Drawing Contents */
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/************************************************************************/
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#define NUM_PER_ROW 2
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#define NUM_PER_COL 1
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struct UserExample : tvgexam::Example
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{
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unique_ptr<tvg::LottieAnimation> slotAnimation;
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unique_ptr<tvg::LottieAnimation> markerAnimation;
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uint32_t w, h;
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uint32_t size;
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void sizing(tvg::Picture* picture, uint32_t counter)
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{
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//image scaling preserving its aspect ratio
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float scale;
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float shiftX = 0.0f, shiftY = 0.0f;
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float w, h;
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picture->size(&w, &h);
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if (w > h) {
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scale = size / w;
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shiftY = (size - h * scale) * 0.5f;
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} else {
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scale = size / h;
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shiftX = (size - w * scale) * 0.5f;
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}
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picture->scale(scale);
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picture->translate((counter % NUM_PER_ROW) * size + shiftX, (counter / NUM_PER_ROW) * (this->h / NUM_PER_COL) + shiftY);
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}
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bool update(tvg::Canvas* canvas, uint32_t elapsed) override
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{
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if (!canvas) return false;
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//slotsample
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{
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auto progress = tvgexam::progress(elapsed, slotAnimation->duration());
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slotAnimation->frame(markerAnimation->totalFrame() * progress);
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}
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//marker
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{
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auto progress = tvgexam::progress(elapsed, markerAnimation->duration());
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markerAnimation->frame(markerAnimation->totalFrame() * progress);
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}
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canvas->update();
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return true;
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}
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bool content(tvg::Canvas* canvas, uint32_t w, uint32_t h) override
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{
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if (!canvas) return false;
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//Background
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auto shape = tvg::Shape::gen();
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shape->appendRect(0, 0, w, h);
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shape->fill(75, 75, 75);
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canvas->push(std::move(shape));
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this->w = w;
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this->h = h;
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this->size = w / NUM_PER_ROW;
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//slotsample
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{
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slotAnimation = tvg::LottieAnimation::gen();
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auto picture = slotAnimation->picture();
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if (!tvgexam::verify(picture->load(EXAMPLE_DIR"/lottie/extensions/slotsample.json"))) return false;
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const char* slotJson = R"({"gradient_fill":{"p":{"a":0,"k":[0,0.1,0.1,0.2,1,1,0.1,0.2,0.1,1]}}})";
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if (!tvgexam::verify(slotAnimation->override(slotJson))) return false;
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sizing(picture, 0);
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canvas->push(tvg::cast(picture));
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}
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//marker
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{
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markerAnimation = tvg::LottieAnimation::gen();
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auto picture = markerAnimation->picture();
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if (!tvgexam::verify(picture->load(EXAMPLE_DIR"/lottie/extensions/marker_sample.json"))) return false;
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if (!tvgexam::verify(markerAnimation->segment("sectionC"))) return false;
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sizing(picture, 1);
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canvas->push(tvg::cast(picture));
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}
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return true;
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}
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};
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/************************************************************************/
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/* Entry Point */
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/************************************************************************/
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int main(int argc, char **argv)
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{
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return tvgexam::main(new UserExample, argc, argv, 1280, 1280);
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} |