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Diffstat (limited to 'imgui-1.92.1/examples/example_glfw_opengl3/main.cpp')
| -rw-r--r-- | imgui-1.92.1/examples/example_glfw_opengl3/main.cpp | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/imgui-1.92.1/examples/example_glfw_opengl3/main.cpp b/imgui-1.92.1/examples/example_glfw_opengl3/main.cpp deleted file mode 100644 index 4bd7bc5..0000000 --- a/imgui-1.92.1/examples/example_glfw_opengl3/main.cpp +++ /dev/null @@ -1,214 +0,0 @@ -// Dear ImGui: standalone example application for GLFW + OpenGL 3, using programmable pipeline -// (GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan/Metal graphics context creation, etc.) - -// Learn about Dear ImGui: -// - FAQ https://dearimgui.com/faq -// - Getting Started https://dearimgui.com/getting-started -// - Documentation https://dearimgui.com/docs (same as your local docs/ folder). -// - Introduction, links and more at the top of imgui.cpp - -#include "imgui.h" -#include "imgui_impl_glfw.h" -#include "imgui_impl_opengl3.h" -#include <stdio.h> -#define GL_SILENCE_DEPRECATION -#if defined(IMGUI_IMPL_OPENGL_ES2) -#include <GLES2/gl2.h> -#endif -#include <GLFW/glfw3.h> // Will drag system OpenGL headers - -// [Win32] Our example includes a copy of glfw3.lib pre-compiled with VS2010 to maximize ease of testing and compatibility with old VS compilers. -// To link with VS2010-era libraries, VS2015+ requires linking with legacy_stdio_definitions.lib, which we do using this pragma. -// Your own project should not be affected, as you are likely to link with a newer binary of GLFW that is adequate for your version of Visual Studio. -#if defined(_MSC_VER) && (_MSC_VER >= 1900) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS) -#pragma comment(lib, "legacy_stdio_definitions") -#endif - -// This example can also compile and run with Emscripten! See 'Makefile.emscripten' for details. -#ifdef __EMSCRIPTEN__ -#include "../libs/emscripten/emscripten_mainloop_stub.h" -#endif - -static void glfw_error_callback(int error, const char* description) -{ - fprintf(stderr, "GLFW Error %d: %s\n", error, description); -} - -// Main code -int main(int, char**) -{ - glfwSetErrorCallback(glfw_error_callback); - if (!glfwInit()) - return 1; - - // Decide GL+GLSL versions -#if defined(IMGUI_IMPL_OPENGL_ES2) - // GL ES 2.0 + GLSL 100 (WebGL 1.0) - const char* glsl_version = "#version 100"; - glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2); - glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0); - glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API); -#elif defined(IMGUI_IMPL_OPENGL_ES3) - // GL ES 3.0 + GLSL 300 es (WebGL 2.0) - const char* glsl_version = "#version 300 es"; - glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3); - glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0); - glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API); -#elif defined(__APPLE__) - // GL 3.2 + GLSL 150 - const char* glsl_version = "#version 150"; - glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3); - glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2); - glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); // 3.2+ only - glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // Required on Mac -#else - // GL 3.0 + GLSL 130 - const char* glsl_version = "#version 130"; - glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3); - glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0); - //glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); // 3.2+ only - //glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // 3.0+ only -#endif - - // Create window with graphics context - float main_scale = ImGui_ImplGlfw_GetContentScaleForMonitor(glfwGetPrimaryMonitor()); // Valid on GLFW 3.3+ only - GLFWwindow* window = glfwCreateWindow((int)(1280 * main_scale), (int)(800 * main_scale), "Dear ImGui GLFW+OpenGL3 example", nullptr, nullptr); - if (window == nullptr) - return 1; - glfwMakeContextCurrent(window); - glfwSwapInterval(1); // Enable vsync - - // Setup Dear ImGui context - IMGUI_CHECKVERSION(); - ImGui::CreateContext(); - ImGuiIO& io = ImGui::GetIO(); (void)io; - io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls - io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls - - // Setup Dear ImGui style - ImGui::StyleColorsDark(); - //ImGui::StyleColorsLight(); - - // Setup scaling - ImGuiStyle& style = ImGui::GetStyle(); - style.ScaleAllSizes(main_scale); // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again) - style.FontScaleDpi = main_scale; // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose) - - // Setup Platform/Renderer backends - ImGui_ImplGlfw_InitForOpenGL(window, true); -#ifdef __EMSCRIPTEN__ - ImGui_ImplGlfw_InstallEmscriptenCallbacks(window, "#canvas"); -#endif - ImGui_ImplOpenGL3_Init(glsl_version); - - // Load Fonts - // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them. - // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple. - // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit). - // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering. - // - Read 'docs/FONTS.md' for more instructions and details. - // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ ! - // - Our Emscripten build process allows embedding fonts to be accessible at runtime from the "fonts/" folder. See Makefile.emscripten for details. - //style.FontSizeBase = 20.0f; - //io.Fonts->AddFontDefault(); - //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf"); - //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf"); - //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf"); - //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf"); - //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf"); - //IM_ASSERT(font != nullptr); - - // Our state - bool show_demo_window = true; - bool show_another_window = false; - ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f); - - // Main loop -#ifdef __EMSCRIPTEN__ - // For an Emscripten build we are disabling file-system access, so let's not attempt to do a fopen() of the imgui.ini file. - // You may manually call LoadIniSettingsFromMemory() to load settings from your own storage. - io.IniFilename = nullptr; - EMSCRIPTEN_MAINLOOP_BEGIN -#else - while (!glfwWindowShouldClose(window)) -#endif - { - // Poll and handle events (inputs, window resize, etc.) - // You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs. - // - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data. - // - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data. - // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags. - glfwPollEvents(); - if (glfwGetWindowAttrib(window, GLFW_ICONIFIED) != 0) - { - ImGui_ImplGlfw_Sleep(10); - continue; - } - - // Start the Dear ImGui frame - ImGui_ImplOpenGL3_NewFrame(); - ImGui_ImplGlfw_NewFrame(); - ImGui::NewFrame(); - - // 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear ImGui!). - if (show_demo_window) - ImGui::ShowDemoWindow(&show_demo_window); - - // 2. Show a simple window that we create ourselves. We use a Begin/End pair to create a named window. - { - static float f = 0.0f; - static int counter = 0; - - ImGui::Begin("Hello, world!"); // Create a window called "Hello, world!" and append into it. - - ImGui::Text("This is some useful text."); // Display some text (you can use a format strings too) - ImGui::Checkbox("Demo Window", &show_demo_window); // Edit bools storing our window open/close state - ImGui::Checkbox("Another Window", &show_another_window); - - ImGui::SliderFloat("float", &f, 0.0f, 1.0f); // Edit 1 float using a slider from 0.0f to 1.0f - ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats representing a color - - if (ImGui::Button("Button")) // Buttons return true when clicked (most widgets return true when edited/activated) - counter++; - ImGui::SameLine(); - ImGui::Text("counter = %d", counter); - - ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate); - ImGui::End(); - } - - // 3. Show another simple window. - if (show_another_window) - { - ImGui::Begin("Another Window", &show_another_window); // Pass a pointer to our bool variable (the window will have a closing button that will clear the bool when clicked) - ImGui::Text("Hello from another window!"); - if (ImGui::Button("Close Me")) - show_another_window = false; - ImGui::End(); - } - - // Rendering - ImGui::Render(); - int display_w, display_h; - glfwGetFramebufferSize(window, &display_w, &display_h); - glViewport(0, 0, display_w, display_h); - glClearColor(clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w); - glClear(GL_COLOR_BUFFER_BIT); - ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData()); - - glfwSwapBuffers(window); - } -#ifdef __EMSCRIPTEN__ - EMSCRIPTEN_MAINLOOP_END; -#endif - - // Cleanup - ImGui_ImplOpenGL3_Shutdown(); - ImGui_ImplGlfw_Shutdown(); - ImGui::DestroyContext(); - - glfwDestroyWindow(window); - glfwTerminate(); - - return 0; -} |
