/* * Copyright (c) 2024 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 #include "Example.h" /************************************************************************/ /* ThorVG Drawing Contents */ /************************************************************************/ #define NUM_PER_ROW 2 #define NUM_PER_COL 1 struct UserExample : tvgexam::Example { unique_ptr slotAnimation; unique_ptr markerAnimation; uint32_t w, h; uint32_t size; void sizing(tvg::Picture* picture, uint32_t counter) { //image scaling preserving its aspect ratio float scale; float shiftX = 0.0f, shiftY = 0.0f; float w, h; picture->size(&w, &h); if (w > h) { scale = size / w; shiftY = (size - h * scale) * 0.5f; } else { scale = size / h; shiftX = (size - w * scale) * 0.5f; } picture->scale(scale); picture->translate((counter % NUM_PER_ROW) * size + shiftX, (counter / NUM_PER_ROW) * (this->h / NUM_PER_COL) + shiftY); } bool update(tvg::Canvas* canvas, uint32_t elapsed) override { if (!canvas) return false; //slotsample { auto progress = tvgexam::progress(elapsed, slotAnimation->duration()); slotAnimation->frame(markerAnimation->totalFrame() * progress); } //marker { auto progress = tvgexam::progress(elapsed, markerAnimation->duration()); markerAnimation->frame(markerAnimation->totalFrame() * progress); } canvas->update(); return true; } bool content(tvg::Canvas* canvas, uint32_t w, uint32_t h) override { if (!canvas) return false; //Background auto shape = tvg::Shape::gen(); shape->appendRect(0, 0, w, h); shape->fill(75, 75, 75); canvas->push(std::move(shape)); this->w = w; this->h = h; this->size = w / NUM_PER_ROW; //slotsample { slotAnimation = tvg::LottieAnimation::gen(); auto picture = slotAnimation->picture(); if (!tvgexam::verify(picture->load(EXAMPLE_DIR"/lottie/extensions/slotsample.json"))) return false; 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]}}})"; if (!tvgexam::verify(slotAnimation->override(slotJson))) return false; sizing(picture, 0); canvas->push(tvg::cast(picture)); } //marker { markerAnimation = tvg::LottieAnimation::gen(); auto picture = markerAnimation->picture(); if (!tvgexam::verify(picture->load(EXAMPLE_DIR"/lottie/extensions/marker_sample.json"))) return false; if (!tvgexam::verify(markerAnimation->segment("sectionC"))) return false; sizing(picture, 1); canvas->push(tvg::cast(picture)); } return true; } }; /************************************************************************/ /* Entry Point */ /************************************************************************/ int main(int argc, char **argv) { return tvgexam::main(new UserExample, argc, argv); }