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https://github.com/thorvg/thorvg.git
synced 2025-06-08 13:43:43 +00:00
6761c5c2a0
Added a `clear` parameter to Canvas::draw(), allowing users to decide whether to clear the target buffer before drawing. To remove the paints from a canvas, please use Canvas::remove() C++ API Removals: - Result Canvas::clear(bool paints, bool buffer) C++ API Modifications: - Result Canvas::draw() -> Result Canvas::draw(bool clear) C API Removals: - Tvg_Result tvg_canvas_clear(bool paints, bool buffer) C API Modifications: - Tvg_Result tvg_canvas_draw(Tvg_Canvas* canvas) -> Tvg_Result tvg_canvas_draw(Tvg_Canvas* canvas, bool clear) issue: https://github.com/thorvg/thorvg/issues/1372
90 lines
No EOL
3.3 KiB
C++
90 lines
No EOL
3.3 KiB
C++
/*
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* Copyright (c) 2020 - 2024 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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//Shape1
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auto shape = tvg::Shape::gen();
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shape->appendRect(-285, -300, 200, 200);
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shape->appendRect(-185, -200, 300, 300, 100, 100);
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shape->appendCircle(115, 100, 100, 100);
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shape->appendCircle(115, 200, 170, 100);
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shape->fill(255, 255, 255);
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shape->translate(385, 400);
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shape->scale(1 - 0.75 * progress);
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shape->rotate(360 * progress);
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canvas->push(shape);
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//Shape2
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auto shape2 = tvg::Shape::gen();
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shape2->appendRect(-50, -50, 100, 100);
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shape2->fill(0, 255, 255);
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shape2->translate(400, 400);
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shape2->rotate(360 * progress);
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shape2->translate(400 + progress * 300, 400);
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canvas->push(shape2);
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//Shape3
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auto shape3 = tvg::Shape::gen();
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/* Look, how shape3's origin is different with shape2
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The center of the shape is the anchor point for transformation. */
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shape3->appendRect(100, 100, 150, 50, 20, 20);
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shape3->fill(255, 0, 255);
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shape3->translate(400, 400);
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shape3->rotate(-360 * progress);
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shape3->scale(0.5 + progress);
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canvas->push(shape3);
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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);
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} |