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cxxopts and magnum possible memory leak small example
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/* | |
This file is part of Magnum. | |
Original authors — credit is appreciated but not required: | |
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 | |
— Vladimír Vondruš <mosra@centrum.cz> | |
2018 — ShaddyAQN <ShaddyAQN@gmail.com> | |
2018 — Jonathan Hale <squareys@googlemail.com> | |
2018 — Tomáš Skřivan <skrivantomas@seznam.cz> | |
2018 — Natesh Narain <nnaraindev@gmail.com> | |
This is free and unencumbered software released into the public domain. | |
Anyone is free to copy, modify, publish, use, compile, sell, or distribute | |
this software, either in source code form or as a compiled binary, for any | |
purpose, commercial or non-commercial, and by any means. | |
In jurisdictions that recognize copyright laws, the author or authors of | |
this software dedicate any and all copyright interest in the software to | |
the public domain. We make this dedication for the benefit of the public | |
at large and to the detriment of our heirs and successors. We intend this | |
dedication to be an overt act of relinquishment in perpetuity of all | |
present and future rights to this software under copyright law. | |
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 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 <Magnum/GL/DefaultFramebuffer.h> | |
#include <Magnum/GL/Renderer.h> | |
#include <Magnum/ImGuiIntegration/Context.hpp> | |
#include <Magnum/Math/Color.h> | |
#ifdef CORRADE_TARGET_ANDROID | |
#include <Magnum/Platform/AndroidApplication.h> | |
#elif defined(CORRADE_TARGET_EMSCRIPTEN) | |
#include <Magnum/Platform/EmscriptenApplication.h> | |
#else | |
#include <Magnum/Platform/Sdl2Application.h> | |
#endif | |
#include <cxxopts.hpp> | |
#include <filesystem> | |
std::string | |
from_u8string (const std::u8string &s) | |
{ | |
return std::string (s.begin (), s.end ()); | |
} | |
namespace Magnum | |
{ | |
namespace Examples | |
{ | |
using namespace Math::Literals; | |
class ImGuiExample : public Platform::Application | |
{ | |
public: | |
explicit ImGuiExample (const Arguments &arguments); | |
void drawEvent () override; | |
void viewportEvent (ViewportEvent &event) override; | |
void keyPressEvent (KeyEvent &event) override; | |
void keyReleaseEvent (KeyEvent &event) override; | |
void mousePressEvent (MouseEvent &event) override; | |
void mouseReleaseEvent (MouseEvent &event) override; | |
void mouseMoveEvent (MouseMoveEvent &event) override; | |
void mouseScrollEvent (MouseScrollEvent &event) override; | |
void textInputEvent (TextInputEvent &event) override; | |
private: | |
ImGuiIntegration::Context _imgui{ NoCreate }; | |
ImFont *smallFont{}; | |
bool _showDemoWindow = true; | |
bool _showAnotherWindow = false; | |
Color4 _clearColor = 0x72909aff_rgbaf; | |
Float _floatValue = 0.0f; | |
}; | |
ImGuiExample::ImGuiExample (const Arguments &arguments) : Platform::Application{ arguments, Configuration{}.setTitle ("Magnum ImGui Example").setWindowFlags (Configuration::WindowFlag::Resizable) } | |
{ | |
ImGui::CreateContext (); | |
ImGuiIO &io = ImGui::GetIO (); | |
std::cout << io.IniFilename << std::endl; | |
ImVector<ImWchar> ranges; | |
ImFontGlyphRangesBuilder builder; | |
builder.AddText (from_u8string (std::u8string{ u8"♠♥♦♣" }).c_str ()); | |
builder.AddRanges (io.Fonts->GetGlyphRangesDefault ()); | |
builder.BuildRanges (&ranges); | |
auto const fontFile = std::filesystem::path{ "bin/asset/DejaVuSans.ttf" }; | |
if (std::filesystem::exists (fontFile)) std::cout << "file exists" << std::endl; | |
auto const fontSize = 100.0f; | |
smallFont = io.Fonts->AddFontFromFileTTF (fontFile.c_str (), fontSize * 0.5f, nullptr, ranges.Data); | |
io.Fonts->Build (); | |
_imgui = Magnum::ImGuiIntegration::Context (*ImGui::GetCurrentContext (), windowSize ()); | |
Magnum::GL::Renderer::setBlendEquation (GL::Renderer::BlendEquation::Add, GL::Renderer::BlendEquation::Add); | |
Magnum::GL::Renderer::setBlendFunction (GL::Renderer::BlendFunction::SourceAlpha, GL::Renderer::BlendFunction::OneMinusSourceAlpha); | |
} | |
void | |
ImGuiExample::drawEvent () | |
{ | |
GL::defaultFramebuffer.clear (GL::FramebufferClear::Color); | |
_imgui.newFrame (); | |
/* Enable text input, if needed */ | |
if (ImGui::GetIO ().WantTextInput && !isTextInputActive ()) startTextInput (); | |
else if (!ImGui::GetIO ().WantTextInput && isTextInputActive ()) | |
stopTextInput (); | |
ImGui::PushFont (smallFont); // use big fonts for smaller window width so text is readable on mobile | |
/* 1. Show a simple window. | |
Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets appear in | |
a window called "Debug" automatically */ | |
{ | |
ImGui::Text ("Hello, world!"); | |
ImGui::SliderFloat ("Float", &_floatValue, 0.0f, 1.0f); | |
if (ImGui::ColorEdit3 ("Clear Color", _clearColor.data ())) GL::Renderer::setClearColor (_clearColor); | |
if (ImGui::Button ("Test Window")) _showDemoWindow ^= true; | |
if (ImGui::Button ("Another Window")) _showAnotherWindow ^= true; | |
ImGui::Text ("Application average %.3f ms/frame (%.1f FPS)", 1000.0 / Double (ImGui::GetIO ().Framerate), Double (ImGui::GetIO ().Framerate)); | |
} | |
/* 2. Show another simple window, now using an explicit Begin/End pair */ | |
if (_showAnotherWindow) | |
{ | |
ImGui::SetNextWindowSize (ImVec2 (500, 100), ImGuiCond_FirstUseEver); | |
ImGui::Begin ("Another Window", &_showAnotherWindow); | |
ImGui::Text ("Hello"); | |
ImGui::End (); | |
} | |
/* 3. Show the ImGui demo window. Most of the sample code is in | |
ImGui::ShowDemoWindow() */ | |
if (_showDemoWindow) | |
{ | |
ImGui::SetNextWindowPos (ImVec2 (650, 20), ImGuiCond_FirstUseEver); | |
ImGui::ShowDemoWindow (); | |
} | |
ImGui::PopFont (); | |
/* Update application cursor */ | |
_imgui.updateApplicationCursor (*this); | |
/* Set appropriate states. If you only draw ImGui, it is sufficient to | |
just enable blending and scissor test in the constructor. */ | |
GL::Renderer::enable (GL::Renderer::Feature::Blending); | |
GL::Renderer::enable (GL::Renderer::Feature::ScissorTest); | |
GL::Renderer::disable (GL::Renderer::Feature::FaceCulling); | |
GL::Renderer::disable (GL::Renderer::Feature::DepthTest); | |
_imgui.drawFrame (); | |
/* Reset state. Only needed if you want to draw something else with | |
different state after. */ | |
GL::Renderer::enable (GL::Renderer::Feature::DepthTest); | |
GL::Renderer::enable (GL::Renderer::Feature::FaceCulling); | |
GL::Renderer::disable (GL::Renderer::Feature::ScissorTest); | |
GL::Renderer::disable (GL::Renderer::Feature::Blending); | |
swapBuffers (); | |
redraw (); | |
} | |
void | |
ImGuiExample::viewportEvent (ViewportEvent &event) | |
{ | |
GL::defaultFramebuffer.setViewport ({ {}, event.framebufferSize () }); | |
_imgui.relayout (Vector2{ event.windowSize () } / event.dpiScaling (), event.windowSize (), event.framebufferSize ()); | |
} | |
void | |
ImGuiExample::keyPressEvent (KeyEvent &event) | |
{ | |
if (_imgui.handleKeyPressEvent (event)) return; | |
} | |
void | |
ImGuiExample::keyReleaseEvent (KeyEvent &event) | |
{ | |
if (_imgui.handleKeyReleaseEvent (event)) return; | |
} | |
void | |
ImGuiExample::mousePressEvent (MouseEvent &event) | |
{ | |
if (_imgui.handleMousePressEvent (event)) return; | |
} | |
void | |
ImGuiExample::mouseReleaseEvent (MouseEvent &event) | |
{ | |
if (_imgui.handleMouseReleaseEvent (event)) return; | |
} | |
void | |
ImGuiExample::mouseMoveEvent (MouseMoveEvent &event) | |
{ | |
if (_imgui.handleMouseMoveEvent (event)) return; | |
} | |
void | |
ImGuiExample::mouseScrollEvent (MouseScrollEvent &event) | |
{ | |
if (_imgui.handleMouseScrollEvent (event)) | |
{ | |
/* Prevent scrolling the page */ | |
event.setAccepted (); | |
return; | |
} | |
} | |
void | |
ImGuiExample::textInputEvent (TextInputEvent &event) | |
{ | |
if (_imgui.handleTextInputEvent (event)) return; | |
} | |
} | |
} | |
// MAGNUM_APPLICATION_MAIN (Magnum::Examples::ImGuiExample) | |
namespace | |
{ | |
Corrade::Containers::Pointer<Magnum::Examples::ImGuiExample> emscriptenApplicationInstance; | |
} | |
int | |
main (int argc, char **argv) | |
{ | |
cxxopts::Options options ("modern-durak-client", "A brief description"); | |
options.add_options () ("w,websocket-url", "url to websocket --websocket-url wss://www.example.com/socketserver", cxxopts::value<std::string> ()->default_value ("wss://localhost:55555")) ("t,touch", "set this option if input type is touch and not keyboard") ("h,help", "Print usage"); | |
emscriptenApplicationInstance.reset (new Magnum::Examples::ImGuiExample{ { argc, argv } }); | |
emscriptenApplicationInstance->redraw (); | |
} |
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