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diff --git a/subprojects/d2tk/pugl/examples/pugl_cxx_demo.cpp b/subprojects/d2tk/pugl/examples/pugl_cxx_demo.cpp
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+/*
+ Copyright 2012-2020 David Robillard <d@drobilla.net>
+
+ Permission to use, copy, modify, and/or distribute this software for any
+ purpose with or without fee is hereby granted, provided that the above
+ copyright notice and this permission notice appear in all copies.
+
+ THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+ @file pugl_cxx_demo.cpp
+ @brief A simple demo of the Pugl C++ API.
+*/
+
+#include "cube_view.h"
+#include "demo_utils.h"
+#include "test/test_utils.h"
+
+#include "pugl/gl.h"
+#include "pugl/pugl.h"
+#include "pugl/pugl.hpp"
+#include "pugl/pugl.ipp"
+#include "pugl/pugl_gl.hpp"
+
+#include <cmath>
+
+class CubeView : public pugl::View
+{
+public:
+ explicit CubeView(pugl::World& world)
+ : pugl::View{world}
+ {}
+
+ pugl::Status onConfigure(const pugl::ConfigureEvent& event) override;
+ pugl::Status onUpdate(const pugl::UpdateEvent& event) override;
+ pugl::Status onExpose(const pugl::ExposeEvent& event) override;
+ pugl::Status onKeyPress(const pugl::KeyPressEvent& event) override;
+ pugl::Status onClose(const pugl::CloseEvent& event) override;
+
+ bool quit() const { return _quit; }
+
+private:
+ double _xAngle{0.0};
+ double _yAngle{0.0};
+ double _lastDrawTime{0.0};
+ bool _quit{false};
+};
+
+pugl::Status
+CubeView::onConfigure(const pugl::ConfigureEvent& event)
+{
+ reshapeCube(static_cast<float>(event.width),
+ static_cast<float>(event.height));
+
+ return pugl::Status::success;
+}
+
+pugl::Status
+CubeView::onUpdate(const pugl::UpdateEvent&)
+{
+ return postRedisplay();
+}
+
+pugl::Status
+CubeView::onExpose(const pugl::ExposeEvent&)
+{
+ const double thisTime = world().time();
+ const double dTime = thisTime - _lastDrawTime;
+ const double dAngle = dTime * 100.0;
+
+ _xAngle = fmod(_xAngle + dAngle, 360.0);
+ _yAngle = fmod(_yAngle + dAngle, 360.0);
+ displayCube(cobj(),
+ 8.0f,
+ static_cast<float>(_xAngle),
+ static_cast<float>(_yAngle),
+ false);
+
+ _lastDrawTime = thisTime;
+
+ return pugl::Status::success;
+}
+
+pugl::Status
+CubeView::onKeyPress(const pugl::KeyPressEvent& event)
+{
+ if (event.key == PUGL_KEY_ESCAPE || event.key == 'q') {
+ _quit = true;
+ }
+
+ return pugl::Status::success;
+}
+
+pugl::Status
+CubeView::onClose(const pugl::CloseEvent&)
+{
+ _quit = true;
+
+ return pugl::Status::success;
+}
+
+int
+main(int argc, char** argv)
+{
+ const PuglTestOptions opts = puglParseTestOptions(&argc, &argv);
+ if (opts.help) {
+ puglPrintTestUsage("pugl_cxx_demo", "");
+ return 1;
+ }
+
+ pugl::World world{pugl::WorldType::program};
+ CubeView view{world};
+ PuglFpsPrinter fpsPrinter{};
+
+ world.setClassName("PuglCppTest");
+
+ view.setWindowTitle("Pugl C++ Test");
+ view.setDefaultSize(512, 512);
+ view.setMinSize(64, 64);
+ view.setAspectRatio(1, 1, 16, 9);
+ view.setBackend(pugl::glBackend());
+ view.setHint(pugl::ViewHint::resizable, opts.resizable);
+ view.setHint(pugl::ViewHint::samples, opts.samples);
+ view.setHint(pugl::ViewHint::doubleBuffer, opts.doubleBuffer);
+ view.setHint(pugl::ViewHint::swapInterval, opts.sync);
+ view.setHint(pugl::ViewHint::ignoreKeyRepeat, opts.ignoreKeyRepeat);
+ view.realize();
+ view.showWindow();
+
+ unsigned framesDrawn = 0;
+ while (!view.quit()) {
+ world.update(0.0);
+
+ ++framesDrawn;
+ puglPrintFps(world.cobj(), &fpsPrinter, &framesDrawn);
+ }
+
+ return 0;
+}