Introduction

Minimal GUI example project using ImGui, SDL2, OpenGL 2.0 and CMake.

• imgui - Minimal GUI.
• SDL2 - Multimedia layer library.

Using ImGui in a CMake Project

To use the ImGui in a CMake project one should copy the following files:

• 3rdparty/imgui - directory with ImGui headers copied from the original repository. This is not a git module, so the files are not updated automatically.
• cmake/imgui.cmake - CMake module that defines variables IMGUI_LIBRARIES and IMGUI_INCLUDE_DIR.

Environment Setup

Debian-based Systems

The following instructions apply to:

• Ubuntu 18.04
• Ubuntu 16.04
• Debian 9

sudo apt-get install -y \
    build-essential \
    cmake \
    xorg-dev \
    libgl1-mesa-dev \
    libfreetype6-dev \
    libsdl2-dev

RedHat-based Systems

The following instructions apply to:

• Fedora 22 and higher

sudo dnf install -y \
    gcc gcc-c++ make \
    cmake \
    mesa-libGL-devel \
    libXrandr-devel \
    libXinerama-devel \
    libXcursor-devel \
    libXi-devel \
    freetype-devel \
    SDL2-devel

Building

Check out sources with --recursive parameter for 3rd-party libraries:

git clone --recursive https://github.com/Postrediori/SdlImGui.git

Prepare build with CMake and build executable

cd SdlImGui.git
mkdir build && cd build
cmake ..
make
make install

Running

Using make install will copy the executable to bundle/SdlImGui directory:

cd build
make install

Run the binary from bundle/SdlImGui:

cd bundle/SdlImGui
./SdlImGui