mirror of
https://github.com/thorvg/thorvg.git
synced 2025-06-07 21:23:32 +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
80 lines
No EOL
2.9 KiB
C++
80 lines
No EOL
2.9 KiB
C++
/*
|
|
* Copyright (c) 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::Scene* scene[3] = {nullptr, nullptr, nullptr}; //(for direction both, horizontal, vertical)
|
|
|
|
bool content(tvg::Canvas* canvas, uint32_t w, uint32_t h) override
|
|
{
|
|
if (!canvas) return false;
|
|
|
|
for (int i = 0; i < 3; ++i) {
|
|
scene[i] = tvg::Scene::gen();
|
|
|
|
auto picture = tvg::Picture::gen();
|
|
picture->load(EXAMPLE_DIR"/svg/tiger.svg");
|
|
picture->size(w / 3, h);
|
|
picture->translate((w / 3) * i, 0);
|
|
|
|
scene[i]->push(picture);
|
|
canvas->push(scene[i]);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool update(tvg::Canvas* canvas, uint32_t elapsed) override
|
|
{
|
|
if (!canvas) return false;
|
|
|
|
auto progress = tvgexam::progress(elapsed, 2.5f, true); //2.5 seconds
|
|
|
|
for (int i = 0; i < 3; ++i) {
|
|
//Clear the previously applied effects
|
|
scene[i]->push(tvg::SceneEffect::ClearAll);
|
|
//Apply GaussianBlur post effect (sigma, direction, border option, quality)
|
|
scene[i]->push(tvg::SceneEffect::GaussianBlur, 10.0f * progress, i, 0, 100);
|
|
}
|
|
|
|
canvas->update();
|
|
|
|
return true;
|
|
}
|
|
|
|
};
|
|
|
|
|
|
/************************************************************************/
|
|
/* Entry Point */
|
|
/************************************************************************/
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
return tvgexam::main(new UserExample, argc, argv, true, 1200, 400, 4, true);
|
|
} |