/* * Copyright (c) 2020 - 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 "Example.h" /************************************************************************/ /* ThorVG Drawing Contents */ /************************************************************************/ struct UserExample : tvgexam::Example { tvg::Shape* pShape = nullptr; bool content(tvg::Canvas* canvas, uint32_t w, uint32_t h) override { if (!canvas) return false; //Shape (for BG) auto bg = tvg::Shape::gen(); bg->appendRect(0, 0, w, h); //fill property will be retained bg->fill(255, 255, 255); canvas->push(std::move(bg)); //Shape auto shape = tvg::Shape::gen(); /* Acquire shape pointer to access it again. instead, you should consider not to interrupt this pointer life-cycle. */ pShape = shape.get(); shape->appendRect(-100, -100, 200, 200); //fill property will be retained shape->fill(127, 255, 255); shape->strokeFill(0, 0, 255); shape->strokeWidth(1); canvas->push(std::move(shape)); return true; } bool update(tvg::Canvas* canvas, uint32_t elapsed) override { if (!canvas) return false; //clear buffer and redraw! if (!tvgexam::verify(canvas->clear(false))) return false; auto progress = tvgexam::progress(elapsed, 2.0f, true); //play time 2 sec. //Reset Shape if (tvgexam::verify(pShape->reset())) { pShape->appendRect(-100 + (800 * progress), -100 + (800 * progress), 200, 200, (100 * progress), (100 * progress)); pShape->fill(127, 255, 255); pShape->strokeFill(0, 0, 255); pShape->strokeWidth(30 * progress); //Update shape for drawing (this may work asynchronously) canvas->update(pShape); return true; } return false; } }; /************************************************************************/ /* Entry Point */ /************************************************************************/ int main(int argc, char **argv) { return tvgexam::main(new UserExample, argc, argv); }