mirror of
https://github.com/thorvg/thorvg.git
synced 2025-06-07 21:23:32 +00:00
4e64804839
just changed the size to another one for better showcase since 800x800 is not preferred by intel arc chipset. animations look stutter.
112 lines
No EOL
3.6 KiB
C++
112 lines
No EOL
3.6 KiB
C++
/*
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* Copyright (c) 2020 - 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 "Example.h"
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/************************************************************************/
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/* ThorVG Drawing Contents */
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/************************************************************************/
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struct UserExample : tvgexam::Example
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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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return update(canvas, 0);
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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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if (!tvgexam::verify(canvas->remove())) return false;
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auto progress = tvgexam::progress(elapsed, 2.0f, true); //play time 2 sec.
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//Shape
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auto shape = tvg::Shape::gen();
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shape->moveTo(0, -114.5);
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shape->lineTo(54, -5.5);
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shape->lineTo(175, 11.5);
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shape->lineTo(88, 95.5);
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shape->lineTo(108, 216.5);
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shape->lineTo(0, 160.5);
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shape->lineTo(-102, 216.5);
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shape->lineTo(-87, 96.5);
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shape->lineTo(-173, 12.5);
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shape->lineTo(-53, -5.5);
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shape->close();
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shape->fill(0, 0, 255);
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shape->strokeWidth(3);
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shape->strokeFill(255, 255, 255);
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//Transform Matrix
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tvg::Matrix m = {1, 0, 0, 0, 1, 0, 0, 0, 1};
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//scale x
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m.e11 = 1 - (progress * 0.5f);
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//scale y
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m.e22 = 1 + (progress * 2.0f);
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//rotation
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constexpr auto PI = 3.141592f;
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auto degree = 45.0f;
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auto radian = degree / 180.0f * PI;
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auto cosVal = cosf(radian);
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auto sinVal = sinf(radian);
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auto t11 = m.e11 * cosVal + m.e12 * sinVal;
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auto t12 = m.e11 * -sinVal + m.e12 * cosVal;
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auto t21 = m.e21 * cosVal + m.e22 * sinVal;
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auto t22 = m.e21 * -sinVal + m.e22 * cosVal;
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auto t13 = m.e31 * cosVal + m.e32 * sinVal;
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auto t23 = m.e31 * -sinVal + m.e32 * cosVal;
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m.e11 = t11;
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m.e12 = t12;
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m.e21 = t21;
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m.e22 = t22;
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m.e13 = t13;
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m.e23 = t23;
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//translate
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m.e13 = progress * 500.0f + 300.0f;
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m.e23 = progress * -100.0f + 380.0f;
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shape->transform(m);
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canvas->push(shape);
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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, true, 960, 960);
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} |