tomato/examples/example_sdl2_sdlrenderer2/main.cpp
Green Sky 293f4fd0a0 Squashed 'external/imgui/imgui/' changes from 6ccc561a2ab..00ad3c65bc2
00ad3c65bc2 Version 1.90.7
f814ef816fb Commented out CaptureKeyboardFromApp(), CaptureMouseFromApp(). Commented out obsolete IsKeyPressedMap() from imgui_internal.h (can call IsKeyPressed). Comments
b9084949bd7 Fixed typo in IsMouseDragging and GetMouseDragDelta's documentation. (#7620)
86931393a36 Shortcuts: Revert "SetShortcutRouting: require explicit routing. (#456)
7832e6a70e6 Shortcuts: Routing: fixed mixed keys<>chars filtering not applying on global routes. (#456, #7618)
85d982011e9 Shortcuts: fixed priority of route calculation (higher first). (#456, #7618)
ce4e210dcb6 Shotcuts: renamed ImGuiInputFlags_RouteGlobalOverFocused -> ImGuiInputFlags_RouteOverFocused, ImGuiInputFlags_RouteGlobalOverActive -> ImGuiInputFlags_RouteOverActive in previsiion of using them with a Hovered route. (#456)
5ce3d299555 Shortcuts: rename ImGuiInputFlags_RouteGlobalHighest to ImGuiInputFlags_RouteGlobalOverActive, made ImGuiInputFlags_RouteGlobalOverFocused and ImGuiInputFlags_RouteGlobalOverActive flags. (#456)
650cb51bf10 Shortcuts: renamed ImGuiInputFlags_RouteActiveItem to ImGuiInputFlags_RouteActive. (#456, #7618)
ef9d525f02c Shortcuts: added ImGuiInputFlags_RouteActiveItem. (#456, #7618) + rearrange Changelog
16b72f2d210 Comments
29439bdd27c Windows: BeginChild(): fixed auto-fit calculation when using either (not both) ResizeX/ResizeY and double-clicking on a border. (#1710)
374b9a7fb43 Demo: Documents: refactor + add Renaming option. (#7233)
c150ad50c46 Shortcuts: claim mods ownership once pressed. (#456, #2637, #2620, #2891, #3370, #3724, #4828, #5108, #5242, #5641)
1002cfa6d2d Demo, Shortcut(): amend Shortcuts demo. (#456)
7c71e66370d Shortcuts, SetShortcutRouting: move ImGuiInputFlags_RouteFromRootWindow evaluation to SetShortcutRouting() for now. (#456)
d5a600e9c64 Shortcuts, SetShortcutRouting: added ImGuiInputFlags_RouteFromRootWindow. Made it possible for SetShortcutRouting() to query for another location.
0eb025f4847 Internals: move ItemHandleShortcut() next to Shortcut(), it's calling it anyhow. (#456)
a689fa262ae SetShortcutRouting: require explicit routing. (#456)
c06e6340cde Shortcuts: added ImGuiInputFlags_Tooltip. (#456)
77e41718940 Shortcuts: added flags to SetNextItemShortcut(). (#456)
197f8904fe8 Shortcuts, Nav: make SetNextItemShortcut() work when another item is active. Made NavCalcPreferredRefPos() take account for remote activation. (#456)
dc5caa483cd Demo: added "Shortcuts" section. (#456, #2637)
fc512a24741 Inputs: Added Shortcut(), SetNextItemShortcut(). Added ImGuiInputFlags, ImGuiInputFlags_RouteXXXX. (#456, #2637)
85513de2476 Internals, Inputs: *Breaking* Swapped parameter order of owner-aware versions of IsKeyPressed(), IsKeyChordPressed(), IsMouseClicked(). (#456)
900b29055c5 Internals, Inputs: *Breaking* Swapped parameter order of Shortcut(). (#456)
55748cdbe12 Internals, Inputs: *Breaking* Renamed ImGuiKeyOwner_None to ImGuiKeyOwner_NoOwner: avoid confusion with non zero value, makes IsKeyPressed() calls using ImGuiKeyOwner_NoOwner more explicit.
ec1d2be96f3 Examples: Win32+DX9,DX10,DX11,DX12: rework main loop to handle minimization and screen locking. (#2496, #3907, #6308, #7615)
6d1a6f1c748 Internals, Inputs: Comments, alignment.
4c3eac2c10e Backends: OpenGL3: Fixed zealous warning by initializing last_pixel_unpack_buffer. (#7614)
a1566c5e1ba Tables: fixed 28a283b breaking PageDown on tables with no interactive items.
aa725ca79dc Inputs: moving ImGuiInputFlags_RouteAlways into ImGuiInputFlags_RouteTypeMask_
cd48059dc53 Tables: comments about skipping access to table data in coarse clipping path.
28a283b4603 Windows: BeginChild(), Tables:fixed visibility of fully clipped child windows and tables to Test Engine.
aa5a6098ee2 Fixed typos in comments (#7599)
d39ca33b63a Fixed false positive with PVS-Studio.
ae8218a3eaf Inputs, Shortcut: fixes some edge cases for GetKeyChordName(), clarify that it is aimed at display. (#456)
25e279ee73f Inputs: Treat ctrl-left-click as right click when ConfigMacOSXBehaviors is set. (#2343)
b4f564c1ed7 Internals: Shortcuts: *Breaking* : rename ImGuiInputFlags_RouteGlobalLow -> ImGuiInputFlags_RouteGlobal, ImGuiInputFlags_RouteGlobal -> ImGuiInputFlags_RouteGlobalOverFocused, ImGuiInputFlags_RouteGlobalHigh -> ImGuiInputFlags_RouteGlobalHighest (#456)
5107e58b0f3 Inputs: amend changelog and clarify how the swap might be a breaking change for a minority of users. (#2343)
8bd5d1d42f0 Inputs: Fixed swapping of keys associated to mods. Fixed warnings. (#2343, #4084, #5923, #456)
77471066471 Inputs: swap Ctrl and Cmd on macOS X, remove ImGuiMod_Shortcut. (#2343, #4084, #5923, #456)
07dbcf1f70d Fixed typos. (#7593)
93daf232233 Examples: SDL3: updates for latest SDL3 API changes.
e45efa9951a Backends: SDL3: Rename SDLK_QUOTE and SDLK_BACKQUOTE to SDLK_APOSTROPHE and SDLK_GRAVE. (#7580)
5d973a87d45 Backends: SDL_Renderer2/SDL_Renderer3: and ImGui_ImplSDLRenderer2_RenderDrawData() and ImGui_ImplSDLRenderer3_RenderDrawData() now takes a SDL_Renderer* parameter.
af2fbf043df Backends/Internals: Don't use IME and clipboard default win32 functions when WINAPI_FAMILY_GAMES (#7585)
e4576914cb9 Internals: amend f806c76 to better match docking + fixed unused static forward declaration warning.
d0524df8879 Internals: slight refactor FindHoveredWindow() -> FindHoveredWindowEx() toward reducing far-away code duplication.
f806c76e97b Tables, Dpi: added dummy g.DpiScale storage (to be altered in docking), using to scale tables border hit thickness.
f0912833ba9 Update FAQ.md (#7581)
ac90e1bd5bd Backends: Win32: replace bd != nullptr assert with early out. (#6275)
0a5d40a0161 Update FAQ.md
d06b8b58d84 Nav: fixed holding Ctrl or gamepad L1 from not slowing down keyboard/gamepad tweak speed.
5e236804541 Backends: all backends + demo now call IMGUI_CHECKVERSION() to verify ABI compatibility between caller code and compiled version of dear imgui. (#7568)
510eb8f4801 Tables: fixed cell background of fully clipped row overlapping with header. (#7575, #7041)
f48aae600a2 Version 1.90.7 WIP

git-subtree-dir: external/imgui/imgui
git-subtree-split: 00ad3c65bc256a16521288505f26fb335440f8f5
2024-05-28 17:12:43 +02:00

173 lines
7.9 KiB
C++

// Dear ImGui: standalone example application for SDL2 + 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 SDL2.
// 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_sdl2.h"
#include "imgui_impl_sdlrenderer2.h"
#include <stdio.h>
#include <SDL.h>
#if !SDL_VERSION_ATLEAST(2,0,17)
#error This backend requires SDL 2.0.17+ because of SDL_RenderGeometry() function
#endif
// Main code
int main(int, char**)
{
// Setup SDL
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMECONTROLLER) != 0)
{
printf("Error: %s\n", SDL_GetError());
return -1;
}
// From 2.0.18: Enable native IME.
#ifdef SDL_HINT_IME_SHOW_UI
SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");
#endif
// Create window with SDL_Renderer graphics context
SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+SDL_Renderer example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
if (window == nullptr)
{
printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
return -1;
}
SDL_Renderer* renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_ACCELERATED);
if (renderer == nullptr)
{
SDL_Log("Error creating SDL_Renderer!");
return 0;
}
//SDL_RendererInfo info;
//SDL_GetRendererInfo(renderer, &info);
//SDL_Log("Current SDL_Renderer: %s", info.name);
// 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_ImplSDL2_InitForSDLRenderer(window, renderer);
ImGui_ImplSDLRenderer2_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 \\ !
//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;
while (!done)
{
// 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_ImplSDL2_ProcessEvent(&event);
if (event.type == SDL_QUIT)
done = true;
if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_CLOSE && event.window.windowID == SDL_GetWindowID(window))
done = true;
}
// Start the Dear ImGui frame
ImGui_ImplSDLRenderer2_NewFrame();
ImGui_ImplSDL2_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_SetRenderDrawColor(renderer, (Uint8)(clear_color.x * 255), (Uint8)(clear_color.y * 255), (Uint8)(clear_color.z * 255), (Uint8)(clear_color.w * 255));
SDL_RenderClear(renderer);
ImGui_ImplSDLRenderer2_RenderDrawData(ImGui::GetDrawData(), renderer);
SDL_RenderPresent(renderer);
}
// Cleanup
ImGui_ImplSDLRenderer2_Shutdown();
ImGui_ImplSDL2_Shutdown();
ImGui::DestroyContext();
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(window);
SDL_Quit();
return 0;
}