thorvg/examples/Retaining.cpp

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3.6 KiB
C++

/*
* 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
{
uint32_t last = 0;
bool content(tvg::Canvas* canvas, uint32_t w, uint32_t h) override
{
//Prepare Round Rectangle
auto shape1 = tvg::Shape::gen();
shape1->appendRect(0, 0, 400, 400, 50, 50); //x, y, w, h, rx, ry
shape1->fill(0, 255, 0); //r, g, b
canvas->push(std::move(shape1));
//Prepare Round Rectangle2
auto shape2 = tvg::Shape::gen();
shape2->appendRect(100, 100, 400, 400, 50, 50); //x, y, w, h, rx, ry
shape2->fill(255, 255, 0); //r, g, b
canvas->push(std::move(shape2));
//Prepare Round Rectangle3
auto shape3 = tvg::Shape::gen();
shape3->appendRect(200, 200, 400, 400, 50, 50); //x, y, w, h, rx, ry
shape3->fill(0, 255, 255); //r, g, b
canvas->push(std::move(shape3));
//Prepare Scene
auto scene = tvg::Scene::gen();
auto shape4 = tvg::Shape::gen();
shape4->appendCircle(400, 400, 100, 100);
shape4->fill(255, 0, 0);
shape4->stroke(5);
shape4->stroke(255, 255, 255);
scene->push(std::move(shape4));
auto shape5 = tvg::Shape::gen();
shape5->appendCircle(550, 550, 150, 150);
shape5->fill(255, 0, 255);
shape5->stroke(5);
shape5->stroke(255, 255, 255);
scene->push(std::move(shape5));
canvas->push(std::move(scene));
return true;
}
bool update(tvg::Canvas* canvas, uint32_t elapsed) override
{
if (!canvas) return false;
//update per every 250ms
if (elapsed - last > 250) {
//Circular list
auto& list = canvas->paints();
auto paint = *list.begin();
list.pop_front();
list.push_back(paint);
last = elapsed;
}
return true;
}
};
/************************************************************************/
/* Entry Point */
/************************************************************************/
int main(int argc, char **argv)
{
return tvgexam::main(new UserExample, argc, argv);
}