thorvg/examples/Scene.cpp
2025-01-03 14:32:31 +09:00

112 lines
No EOL
4 KiB
C++

/*
* Copyright (c) 2020 - 2025 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
{
bool content(tvg::Canvas* canvas, uint32_t w, uint32_t h) override
{
if (!canvas) return false;
//Create a Scene
auto scene = tvg::Scene::gen();
//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
scene->push(shape1);
//Prepare Circle
auto shape2 = tvg::Shape::gen();
shape2->appendCircle(400, 400, 200, 200); //cx, cy, radiusW, radiusH
shape2->fill(255, 255, 0); //r, g, b
scene->push(shape2);
//Prepare Ellipse
auto shape3 = tvg::Shape::gen();
shape3->appendCircle(600, 600, 150, 100); //cx, cy, radiusW, radiusH
shape3->fill(0, 255, 255); //r, g, b
scene->push(shape3);
//Create another Scene
auto scene2 = tvg::Scene::gen();
//Star
auto shape4 = tvg::Shape::gen();
//Appends Paths
shape4->moveTo(199, 34);
shape4->lineTo(253, 143);
shape4->lineTo(374, 160);
shape4->lineTo(287, 244);
shape4->lineTo(307, 365);
shape4->lineTo(199, 309);
shape4->lineTo(97, 365);
shape4->lineTo(112, 245);
shape4->lineTo(26, 161);
shape4->lineTo(146, 143);
shape4->close();
shape4->fill(0, 0, 255);
scene2->push(shape4);
//Circle
auto shape5 = tvg::Shape::gen();
auto cx = 550.0f;
auto cy = 550.0f;
auto radius = 125.0f;
auto halfRadius = radius * 0.552284f;
//Append Paths
shape5->moveTo(cx, cy - radius);
shape5->cubicTo(cx + halfRadius, cy - radius, cx + radius, cy - halfRadius, cx + radius, cy);
shape5->cubicTo(cx + radius, cy + halfRadius, cx + halfRadius, cy + radius, cx, cy+ radius);
shape5->cubicTo(cx - halfRadius, cy + radius, cx - radius, cy + halfRadius, cx - radius, cy);
shape5->cubicTo(cx - radius, cy - halfRadius, cx - halfRadius, cy - radius, cx, cy - radius);
shape5->fill(255, 0, 0);
scene2->push(shape5);
//Push scene2 onto the scene
scene->push(scene2);
//Draw the Scene onto the Canvas
canvas->push(scene);
return true;
}
};
/************************************************************************/
/* Entry Point */
/************************************************************************/
int main(int argc, char **argv)
{
return tvgexam::main(new UserExample, argc, argv);
}