diff options
Diffstat (limited to 'src/imgui/examples/example_sdl2_opengl2')
6 files changed, 537 insertions, 0 deletions
diff --git a/src/imgui/examples/example_sdl2_opengl2/Makefile b/src/imgui/examples/example_sdl2_opengl2/Makefile new file mode 100644 index 0000000..a85ced0 --- /dev/null +++ b/src/imgui/examples/example_sdl2_opengl2/Makefile @@ -0,0 +1,79 @@ +# +# Cross Platform Makefile +# Compatible with MSYS2/MINGW, Ubuntu 14.04.1 and Mac OS X +# +# You will need SDL2 (http://www.libsdl.org): +# Linux: +# apt-get install libsdl2-dev +# Mac OS X: +# brew install sdl2 +# MSYS2: +# pacman -S mingw-w64-i686-SDL2 +# + +#CXX = g++ +#CXX = clang++ + +EXE = example_sdl2_opengl2 +IMGUI_DIR = ../.. +SOURCES = main.cpp +SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp +SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl2.cpp $(IMGUI_DIR)/backends/imgui_impl_opengl2.cpp +OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES)))) +UNAME_S := $(shell uname -s) + +CXXFLAGS = -std=c++11 -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends +CXXFLAGS += -g -Wall -Wformat +LIBS = + +##--------------------------------------------------------------------- +## BUILD FLAGS PER PLATFORM +##--------------------------------------------------------------------- + +ifeq ($(UNAME_S), Linux) #LINUX + ECHO_MESSAGE = "Linux" + LIBS += -lGL -ldl `sdl2-config --libs` + + CXXFLAGS += `sdl2-config --cflags` + CFLAGS = $(CXXFLAGS) +endif + +ifeq ($(UNAME_S), Darwin) #APPLE + ECHO_MESSAGE = "Mac OS X" + LIBS += -framework OpenGL -framework Cocoa -framework IOKit -framework CoreVideo `sdl2-config --libs` + LIBS += -L/usr/local/lib -L/opt/local/lib + + CXXFLAGS += `sdl2-config --cflags` + CXXFLAGS += -I/usr/local/include -I/opt/local/include + CFLAGS = $(CXXFLAGS) +endif + +ifeq ($(OS), Windows_NT) + ECHO_MESSAGE = "MinGW" + LIBS += -lgdi32 -lopengl32 -limm32 `pkg-config --static --libs sdl2` + + CXXFLAGS += `pkg-config --cflags sdl2` + CFLAGS = $(CXXFLAGS) +endif + +##--------------------------------------------------------------------- +## BUILD RULES +##--------------------------------------------------------------------- + +%.o:%.cpp + $(CXX) $(CXXFLAGS) -c -o $@ $< + +%.o:$(IMGUI_DIR)/%.cpp + $(CXX) $(CXXFLAGS) -c -o $@ $< + +%.o:$(IMGUI_DIR)/backends/%.cpp + $(CXX) $(CXXFLAGS) -c -o $@ $< + +all: $(EXE) + @echo Build complete for $(ECHO_MESSAGE) + +$(EXE): $(OBJS) + $(CXX) -o $@ $^ $(CXXFLAGS) $(LIBS) + +clean: + rm -f $(EXE) $(OBJS) diff --git a/src/imgui/examples/example_sdl2_opengl2/README.md b/src/imgui/examples/example_sdl2_opengl2/README.md new file mode 100644 index 0000000..40a49e6 --- /dev/null +++ b/src/imgui/examples/example_sdl2_opengl2/README.md @@ -0,0 +1,29 @@ + +# How to Build + +- On Windows with Visual Studio's IDE + +Use the provided project file (.vcxproj). Add to solution (imgui_examples.sln) if necessary. + +- On Windows with Visual Studio's CLI + +``` +set SDL2_DIR=path_to_your_sdl2_folder +cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_opengl2.cpp ..\..\imgui*.cpp /FeDebug/example_sdl2_opengl2.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console +# ^^ include paths ^^ source files ^^ output exe ^^ output dir ^^ libraries +# or for 64-bit: +cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_opengl2.cpp ..\..\imgui*.cpp /FeDebug/example_sdl2_opengl2.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x64 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console +``` + +- On Linux and similar Unixes + +``` +c++ `sdl2-config --cflags` -I .. -I ../.. -I ../../backends main.cpp ../../backends/imgui_impl_sdl2.cpp ../../backends/imgui_impl_opengl2.cpp ../../imgui*.cpp `sdl2-config --libs` -lGL +``` + +- On Mac OS X + +``` +brew install sdl2 +c++ `sdl2-config --cflags` -I .. -I ../.. -I ../../backends main.cpp ../../backends/imgui_impl_sdl2.cpp ../../backends/imgui_impl_opengl2.cpp ../../imgui*.cpp `sdl2-config --libs` -framework OpenGl +``` diff --git a/src/imgui/examples/example_sdl2_opengl2/build_win32.bat b/src/imgui/examples/example_sdl2_opengl2/build_win32.bat new file mode 100644 index 0000000..7543eda --- /dev/null +++ b/src/imgui/examples/example_sdl2_opengl2/build_win32.bat @@ -0,0 +1,8 @@ +@REM Build for Visual Studio compiler. Run your copy of vcvars32.bat or vcvarsall.bat to setup command-line compiler. +@set OUT_DIR=Debug +@set OUT_EXE=example_sdl2_opengl2 +@set INCLUDES=/I..\.. /I..\..\backends /I%SDL2_DIR%\include +@set SOURCES=main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_opengl2.cpp ..\..\imgui*.cpp +@set LIBS=/LIBPATH:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib shell32.lib +mkdir %OUT_DIR% +cl /nologo /Zi /MD /utf-8 %INCLUDES% %SOURCES% /Fe%OUT_DIR%/%OUT_EXE%.exe /Fo%OUT_DIR%/ /link %LIBS% /subsystem:console diff --git a/src/imgui/examples/example_sdl2_opengl2/example_sdl2_opengl2.vcxproj b/src/imgui/examples/example_sdl2_opengl2/example_sdl2_opengl2.vcxproj new file mode 100644 index 0000000..036463f --- /dev/null +++ b/src/imgui/examples/example_sdl2_opengl2/example_sdl2_opengl2.vcxproj @@ -0,0 +1,186 @@ +<?xml version="1.0" encoding="utf-8"?> +<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> + <ItemGroup Label="ProjectConfigurations"> + <ProjectConfiguration Include="Debug|Win32"> + <Configuration>Debug</Configuration> + <Platform>Win32</Platform> + </ProjectConfiguration> + <ProjectConfiguration Include="Debug|x64"> + <Configuration>Debug</Configuration> + <Platform>x64</Platform> + </ProjectConfiguration> + <ProjectConfiguration Include="Release|Win32"> + <Configuration>Release</Configuration> + <Platform>Win32</Platform> + </ProjectConfiguration> + <ProjectConfiguration Include="Release|x64"> + <Configuration>Release</Configuration> + <Platform>x64</Platform> + </ProjectConfiguration> + </ItemGroup> + <PropertyGroup Label="Globals"> + <ProjectGuid>{2AE17FDE-F7F3-4CAC-ADAB-0710EDA4F741}</ProjectGuid> + <RootNamespace>example_sdl2_opengl2</RootNamespace> + <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion> + </PropertyGroup> + <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" /> + <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration"> + <ConfigurationType>Application</ConfigurationType> + <UseDebugLibraries>true</UseDebugLibraries> + <CharacterSet>MultiByte</CharacterSet> + <PlatformToolset>v140</PlatformToolset> + </PropertyGroup> + <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration"> + <ConfigurationType>Application</ConfigurationType> + <UseDebugLibraries>true</UseDebugLibraries> + <CharacterSet>MultiByte</CharacterSet> + <PlatformToolset>v140</PlatformToolset> + </PropertyGroup> + <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration"> + <ConfigurationType>Application</ConfigurationType> + <UseDebugLibraries>false</UseDebugLibraries> + <WholeProgramOptimization>true</WholeProgramOptimization> + <CharacterSet>MultiByte</CharacterSet> + <PlatformToolset>v140</PlatformToolset> + </PropertyGroup> + <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration"> + <ConfigurationType>Application</ConfigurationType> + <UseDebugLibraries>false</UseDebugLibraries> + <WholeProgramOptimization>true</WholeProgramOptimization> + <CharacterSet>MultiByte</CharacterSet> + <PlatformToolset>v140</PlatformToolset> + </PropertyGroup> + <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" /> + <ImportGroup Label="ExtensionSettings"> + </ImportGroup> + <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'"> + <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" /> + </ImportGroup> + <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets"> + <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" 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<OutDir>$(ProjectDir)$(Configuration)\</OutDir> + <IntDir>$(ProjectDir)$(Configuration)\</IntDir> + <IncludePath>$(IncludePath)</IncludePath> + </PropertyGroup> + <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'"> + <OutDir>$(ProjectDir)$(Configuration)\</OutDir> + <IntDir>$(ProjectDir)$(Configuration)\</IntDir> + <IncludePath>$(IncludePath)</IncludePath> + </PropertyGroup> + <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'"> + <OutDir>$(ProjectDir)$(Configuration)\</OutDir> + <IntDir>$(ProjectDir)$(Configuration)\</IntDir> + <IncludePath>$(IncludePath)</IncludePath> + </PropertyGroup> + <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'"> + <ClCompile> + <WarningLevel>Level4</WarningLevel> + <Optimization>Disabled</Optimization> + <AdditionalIncludeDirectories>..\..;..\..\backends;%SDL2_DIR%\include;$(VcpkgCurrentInstalledDir)include\SDL2;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories> + <AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions> + </ClCompile> + <Link> + <GenerateDebugInformation>true</GenerateDebugInformation> + <AdditionalLibraryDirectories>%SDL2_DIR%\lib\x86;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories> + <AdditionalDependencies>opengl32.lib;SDL2.lib;SDL2main.lib;%(AdditionalDependencies)</AdditionalDependencies> + <SubSystem>Console</SubSystem> + <IgnoreSpecificDefaultLibraries>msvcrt.lib</IgnoreSpecificDefaultLibraries> + </Link> + </ItemDefinitionGroup> + <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'"> + <ClCompile> + <WarningLevel>Level4</WarningLevel> + <Optimization>Disabled</Optimization> + <AdditionalIncludeDirectories>..\..;..\..\backends;%SDL2_DIR%\include;$(VcpkgCurrentInstalledDir)include\SDL2;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories> + <AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions> + </ClCompile> + <Link> + 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+ </ClCompile> + <Link> + <GenerateDebugInformation>true</GenerateDebugInformation> + <EnableCOMDATFolding>true</EnableCOMDATFolding> + <OptimizeReferences>true</OptimizeReferences> + <AdditionalLibraryDirectories>%SDL2_DIR%\lib\x86;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories> + <AdditionalDependencies>opengl32.lib;SDL2.lib;SDL2main.lib;%(AdditionalDependencies)</AdditionalDependencies> + <SubSystem>Console</SubSystem> + <IgnoreSpecificDefaultLibraries> + </IgnoreSpecificDefaultLibraries> + </Link> + </ItemDefinitionGroup> + <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'"> + <ClCompile> + <WarningLevel>Level4</WarningLevel> + <Optimization>MaxSpeed</Optimization> + <FunctionLevelLinking>true</FunctionLevelLinking> + <IntrinsicFunctions>true</IntrinsicFunctions> + <AdditionalIncludeDirectories>..\..;..\..\backends;%SDL2_DIR%\include;$(VcpkgCurrentInstalledDir)include\SDL2;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories> + <BufferSecurityCheck>false</BufferSecurityCheck> + <AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions> + </ClCompile> + <Link> + <GenerateDebugInformation>true</GenerateDebugInformation> + <EnableCOMDATFolding>true</EnableCOMDATFolding> + <OptimizeReferences>true</OptimizeReferences> + <AdditionalLibraryDirectories>%SDL2_DIR%\lib\x64;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories> + <AdditionalDependencies>opengl32.lib;SDL2.lib;SDL2main.lib;%(AdditionalDependencies)</AdditionalDependencies> + <SubSystem>Console</SubSystem> + <IgnoreSpecificDefaultLibraries> + </IgnoreSpecificDefaultLibraries> + </Link> + </ItemDefinitionGroup> + <ItemGroup> + <ClCompile Include="..\..\imgui.cpp" /> + <ClCompile Include="..\..\imgui_demo.cpp" /> + <ClCompile Include="..\..\imgui_draw.cpp" /> + <ClCompile Include="..\..\imgui_tables.cpp" /> + <ClCompile Include="..\..\imgui_widgets.cpp" /> + <ClCompile Include="..\..\backends\imgui_impl_sdl2.cpp" /> + <ClCompile Include="..\..\backends\imgui_impl_opengl2.cpp" /> + <ClCompile Include="main.cpp" /> + </ItemGroup> + <ItemGroup> + <ClInclude Include="..\..\imconfig.h" /> + <ClInclude Include="..\..\imgui.h" /> + <ClInclude Include="..\..\imgui_internal.h" /> + <ClInclude Include="..\..\backends\imgui_impl_sdl2.h" /> + <ClInclude Include="..\..\backends\imgui_impl_opengl2.h" /> + </ItemGroup> + <ItemGroup> + <None Include="..\..\misc\debuggers\imgui.natstepfilter" /> + <None Include="..\..\misc\debuggers\imgui.natvis" /> + <None Include="..\README.txt" /> + </ItemGroup> + <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" /> + <ImportGroup Label="ExtensionTargets"> + </ImportGroup> +</Project>
\ No newline at end of file diff --git a/src/imgui/examples/example_sdl2_opengl2/example_sdl2_opengl2.vcxproj.filters b/src/imgui/examples/example_sdl2_opengl2/example_sdl2_opengl2.vcxproj.filters new file mode 100644 index 0000000..752a196 --- /dev/null +++ b/src/imgui/examples/example_sdl2_opengl2/example_sdl2_opengl2.vcxproj.filters @@ -0,0 +1,64 @@ +<?xml version="1.0" encoding="utf-8"?> +<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> + <ItemGroup> + <Filter Include="imgui"> + <UniqueIdentifier>{20b90ce4-7fcb-4731-b9a0-075f875de82d}</UniqueIdentifier> + </Filter> + <Filter Include="sources"> + <UniqueIdentifier>{f18ab499-84e1-499f-8eff-9754361e0e52}</UniqueIdentifier> + <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions> + </Filter> + </ItemGroup> + <ItemGroup> + <ClCompile Include="..\..\imgui.cpp"> + <Filter>imgui</Filter> + </ClCompile> + <ClCompile Include="..\..\imgui_demo.cpp"> + <Filter>imgui</Filter> + </ClCompile> + <ClCompile Include="..\..\imgui_draw.cpp"> + <Filter>imgui</Filter> + </ClCompile> + <ClCompile Include="main.cpp"> + <Filter>sources</Filter> + </ClCompile> + <ClCompile Include="..\..\imgui_tables.cpp"> + <Filter>imgui</Filter> + </ClCompile> + <ClCompile Include="..\..\imgui_widgets.cpp"> + <Filter>imgui</Filter> + </ClCompile> + <ClCompile Include="..\..\backends\imgui_impl_sdl2.cpp"> + <Filter>sources</Filter> + </ClCompile> + <ClCompile Include="..\..\backends\imgui_impl_opengl2.cpp"> + <Filter>sources</Filter> + </ClCompile> + </ItemGroup> + <ItemGroup> + <ClInclude Include="..\..\imconfig.h"> + <Filter>imgui</Filter> + </ClInclude> + <ClInclude Include="..\..\imgui.h"> + <Filter>imgui</Filter> + </ClInclude> + <ClInclude Include="..\..\imgui_internal.h"> + <Filter>imgui</Filter> + </ClInclude> + <ClInclude Include="..\..\backends\imgui_impl_opengl2.h"> + <Filter>sources</Filter> + </ClInclude> + <ClInclude Include="..\..\backends\imgui_impl_sdl2.h"> + <Filter>sources</Filter> + </ClInclude> + </ItemGroup> + <ItemGroup> + <None Include="..\README.txt" /> + <None Include="..\..\misc\debuggers\imgui.natvis"> + <Filter>imgui</Filter> + </None> + <None Include="..\..\misc\debuggers\imgui.natstepfilter"> + <Filter>imgui</Filter> + </None> + </ItemGroup> +</Project>
\ No newline at end of file diff --git a/src/imgui/examples/example_sdl2_opengl2/main.cpp b/src/imgui/examples/example_sdl2_opengl2/main.cpp new file mode 100644 index 0000000..efb28ed --- /dev/null +++ b/src/imgui/examples/example_sdl2_opengl2/main.cpp @@ -0,0 +1,171 @@ +// Dear ImGui: standalone example application for SDL2 + OpenGL +// (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 + +// **DO NOT USE THIS CODE IF YOUR CODE/ENGINE IS USING MODERN OPENGL (SHADERS, VBO, VAO, etc.)** +// **Prefer using the code in the example_sdl2_opengl3/ folder** +// See imgui_impl_sdl2.cpp for details. + +#include "imgui.h" +#include "imgui_impl_sdl2.h" +#include "imgui_impl_opengl2.h" +#include <stdio.h> +#include <SDL.h> +#include <SDL_opengl.h> + +// 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 + + // Setup window + SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1); + SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24); + SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8); + SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2); + SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2); + SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI); + SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+OpenGL 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_GLContext gl_context = SDL_GL_CreateContext(window); + SDL_GL_MakeCurrent(window, gl_context); + SDL_GL_SetSwapInterval(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 Platform/Renderer backends + ImGui_ImplSDL2_InitForOpenGL(window, gl_context); + ImGui_ImplOpenGL2_Init(); + + // 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_ImplOpenGL2_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(); + glViewport(0, 0, (int)io.DisplaySize.x, (int)io.DisplaySize.y); + 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); + //glUseProgram(0); // You may want this if using this code in an OpenGL 3+ context where shaders may be bound + ImGui_ImplOpenGL2_RenderDrawData(ImGui::GetDrawData()); + SDL_GL_SwapWindow(window); + } + + // Cleanup + ImGui_ImplOpenGL2_Shutdown(); + ImGui_ImplSDL2_Shutdown(); + ImGui::DestroyContext(); + + SDL_GL_DeleteContext(gl_context); + SDL_DestroyWindow(window); + SDL_Quit(); + + return 0; +} |