tomato-testing/examples/example_sdl3_sdlrenderer3/main.cpp
Green Sky ea83589a82 Squashed 'external/imgui/imgui/' changes from 00ad3c65bc2..6f7b5d0ee2f
6f7b5d0ee2f Version 1.90.8
67d886fd637 Removed ImGuiButtonFlags_MouseButtonDefault_.
2a418f054d8 InputText: reordered all flags. (ABI breaking)
f1eaf8d7c01 Internals: added SetNextItemRefVal(). (#7305)
47db0698d2a InputScalar, InputInt, InputFloat: added ImGuiInputTextFlags_ParseEmptyRefVal, ImGuiInputTextFlags_DisplayEmptyRefVal. (#7305)
3460014e055 Internals: avoid using bitfields in ImGuiNextItemData as it leads to extraneous packing. rename ImGuiDataTypeTempStorage to ImGuiDataTypeStorage. moved DataType section above Widgets.
0561d708baa Modals, Popups: fixed an issue preventing to close a popup opened over a modal by clicking over void. (#7654)
219c6adc582 Examples: SDL3+SDLRenderer3: Update SDL_SetRenderDrawColorFloat() call. (#7658)
b95b2b4574d Fixed (harmless) incorrect order of arguments in IsKeyChordPressed (#7657)
209edcc2477 Fixed incorrect order of arguments in IsMouseClicked(). (#7657, #456)
a31aa683ff9 Tables: fixed an issue where ideal size reported to parent container wouldn't correctly take account of inner scrollbar. (#7651)
f8de9fec8c5 Backends: SDL3: Update for SDL_SYSTEM_CURSOR_xxx api renames. (#7653)
68a05e3f040 Tables: fixed a bug where after disabling the ScrollY flag for a table, previous scrollbar width would be accounted for. (#5920)
6cefd4fd88c Scrollbar: fixed miscalculation of vertical scrollbar visibility when required solely by the presence of an horizontal scrollbar. (#1574)
8ab89657139 Improved clarity in comment. (#7642)
9aec6d7217c Internals: Added ItemUnclipByLog for use by ItemAdd(), as we expected to add more.
0fce21e8906 Internals: Disable 0xCC stack fill for ItemAdd()/ItemSize().
854e21d4b4c Disabled: move field to ImGuiWindowStackData. (#7640)
538960bf17d Examples: Fixed SDL3 Makefile (#7641)
f953ebf9ca1 Disabled: nested tooltips or other non-child window within a BeginDisabled() block disable the disabled state. (#211, #7640)
e47015aef41 Demo: remove incompatible ImGuiInputFlags for Shortcut(). (#7637)
97a1111b94c Drag and Drop: tweaked BeginDragDropSource() to remove indent. Added debug log.
661c3885159 Debug Log, Test Engine: avoid duplicate carriage return when using ImGuiDebugLogFlags_OutputToTestEngine. (#5855)
868f4446209 Debug: extracted debug log 0xXXXXXXX scanning into a helper function. (#5855)
109a8632d76 Combo: simplified Combo() API uses a list clipper.
51823d117de Misc: made ImGuiDir, ImGuiSortDirection,  ImGuiMouseCursor stronger-typed enums + cater for possible warning in backends's switch()
5cbc34a10c0 Scrollbar: clicking above or below the grab scrolls by one page, holding mouse button repeats scrolling. (#7328, #150)
479c5f62fce Style: make DisplayWindowPadding visible in style editor.
ed9eb880b5f Windows: Fixed altering FramePadding mid-frame not correctly affecting logic responsible for honoring io.ConfigWindowsMoveFromTitleBarOnly. (#7576, #899)
5a1a9a804a3 Docs: fixed link.
7f5d5c80b2f Internals, Tabbar: fixed TabBarGetCurrentTab() with tab_idx == 0. (#7629)
1f9fc382c36 Version 1.90.8 WIP

git-subtree-dir: external/imgui/imgui
git-subtree-split: 6f7b5d0ee2fe9948ab871a530888a6dc5c960700
2024-06-09 09:52:26 +02:00

180 lines
8.2 KiB
C++

// Dear ImGui: standalone example application for SDL3 + SDL_Renderer
// (SDL 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
// Important to understand: SDL_Renderer is an _optional_ component of SDL3.
// For a multi-platform app consider using e.g. SDL+DirectX on Windows and SDL+OpenGL on Linux/OSX.
#include "imgui.h"
#include "imgui_impl_sdl3.h"
#include "imgui_impl_sdlrenderer3.h"
#include <stdio.h>
#include <SDL3/SDL.h>
#if defined(IMGUI_IMPL_OPENGL_ES2)
#include <SDL3/SDL_opengles2.h>
#else
#include <SDL3/SDL_opengl.h>
#endif
// Main code
int main(int, char**)
{
// Setup SDL
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMEPAD) != 0)
{
printf("Error: SDL_Init(): %s\n", SDL_GetError());
return -1;
}
// Enable native IME.
SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");
// Create window with SDL_Renderer graphics context
Uint32 window_flags = SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIDDEN;
SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL3+SDL_Renderer example", 1280, 720, window_flags);
if (window == nullptr)
{
printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
return -1;
}
SDL_Renderer* renderer = SDL_CreateRenderer(window, nullptr);
SDL_SetRenderVSync(renderer, 1);
if (renderer == nullptr)
{
SDL_Log("Error: SDL_CreateRenderer(): %s\n", SDL_GetError());
return -1;
}
SDL_SetWindowPosition(window, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED);
SDL_ShowWindow(window);
// 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 Platform/Renderer backends
ImGui_ImplSDL3_InitForSDLRenderer(window, renderer);
ImGui_ImplSDLRenderer3_Init(renderer);
// 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).
// - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
// - 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.
//io.Fonts->AddFontDefault();
//io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
//io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
//io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
//io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
//ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
//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
bool done = false;
#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 (!done)
#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.
SDL_Event event;
while (SDL_PollEvent(&event))
{
ImGui_ImplSDL3_ProcessEvent(&event);
if (event.type == SDL_EVENT_QUIT)
done = true;
if (event.type == SDL_EVENT_WINDOW_CLOSE_REQUESTED && event.window.windowID == SDL_GetWindowID(window))
done = true;
}
// Start the Dear ImGui frame
ImGui_ImplSDLRenderer3_NewFrame();
ImGui_ImplSDL3_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();
//SDL_RenderSetScale(renderer, io.DisplayFramebufferScale.x, io.DisplayFramebufferScale.y);
SDL_SetRenderDrawColorFloat(renderer, clear_color.x, clear_color.y, clear_color.z, clear_color.w);
SDL_RenderClear(renderer);
ImGui_ImplSDLRenderer3_RenderDrawData(ImGui::GetDrawData(), renderer);
SDL_RenderPresent(renderer);
}
// Cleanup
ImGui_ImplSDLRenderer3_Shutdown();
ImGui_ImplSDL3_Shutdown();
ImGui::DestroyContext();
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(window);
SDL_Quit();
return 0;
}