voxel-raycaster/include/imgui/imconfig.h

//-----------------------------------------------------------------------------
// USER IMPLEMENTATION
// This file contains compile-time options for ImGui.
// Other options (memory allocation overrides, callbacks, etc.) can be set at runtime via the ImGuiIO structure - ImGui::GetIO().
//-----------------------------------------------------------------------------

#pragma once
// Add this to your imconfig.h

#include <SFML/System/Vector2.hpp>
#include <SFML/Graphics/Color.hpp>

#define IM_VEC2_CLASS_EXTRA                                             \
    template <typename T>                                               \
    ImVec2(const sf::Vector2<T>& v) {                                   \
        x = static_cast<float>(v.x);                                    \
        y = static_cast<float>(v.y);                                    \
    }                                                                   \
                                                                        \
    template <typename T>                                               \
    operator sf::Vector2<T>() const {                                   \
        return sf::Vector2<T>(x, y);                                    \
    }

#define IM_VEC4_CLASS_EXTRA                                             \
    ImVec4(const sf::Color & c)                                         \
        : ImVec4(c.r / 255.f, c.g / 255.f, c.b / 255.f, c.a / 255.f) {  \
    }                                                                   \
    operator sf::Color() const {                                        \
        return sf::Color(                                               \
            static_cast<sf::Uint8>(x * 255.f),                          \
            static_cast<sf::Uint8>(y * 255.f),                          \
            static_cast<sf::Uint8>(z * 255.f),                          \
            static_cast<sf::Uint8>(w * 255.f));                         \
    }
//---- Define assertion handler. Defaults to calling assert().
//#define IM_ASSERT(_EXPR)  MyAssert(_EXPR)

//---- Define attributes of all API symbols declarations, e.g. for DLL under Windows.
//#define IMGUI_API __declspec( dllexport )
//#define IMGUI_API __declspec( dllimport )

//---- Don't define obsolete functions names. Consider enabling from time to time or when updating to reduce like hood of using already obsolete function/names
//#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS

//---- Include imgui_user.h at the end of imgui.h
//#define IMGUI_INCLUDE_IMGUI_USER_H

//---- Don't implement default handlers for Windows (so as not to link with OpenClipboard() and others Win32 functions)
//#define IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS
//#define IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS

//---- Don't implement demo windows functionality (ShowDemoWindow()/ShowStyleEditor()/ShowUserGuide() methods will be empty)
//---- It is very strongly recommended to NOT disable the demo windows. Please read the comment at the top of imgui_demo.cpp to learn why.
//#define IMGUI_DISABLE_DEMO_WINDOWS

//---- Don't implement ImFormatString(), ImFormatStringV() so you can reimplement them yourself.
//#define IMGUI_DISABLE_FORMAT_STRING_FUNCTIONS

//---- Pack colors to BGRA instead of RGBA (remove need to post process vertex buffer in back ends)
//#define IMGUI_USE_BGRA_PACKED_COLOR

//---- Implement STB libraries in a namespace to avoid linkage conflicts
//#define IMGUI_STB_NAMESPACE     ImGuiStb

//---- Define constructor and implicit cast operators to convert back<>forth from your math types and ImVec2/ImVec4.
/*
#define IM_VEC2_CLASS_EXTRA                                                 \
        ImVec2(const MyVec2& f) { x = f.x; y = f.y; }                       \
        operator MyVec2() const { return MyVec2(x,y); }

#define IM_VEC4_CLASS_EXTRA                                                 \
        ImVec4(const MyVec4& f) { x = f.x; y = f.y; z = f.z; w = f.w; }     \
        operator MyVec4() const { return MyVec4(x,y,z,w); }
*/

//---- Use 32-bit vertex indices (instead of default: 16-bit) to allow meshes with more than 64K vertices
//#define ImDrawIdx unsigned int

//---- Tip: You can add extra functions within the ImGui:: namespace, here or in your own headers files.
//---- e.g. create variants of the ImGui::Value() helper for your low-level math types, or your own widgets/helpers.
/*
namespace ImGui
{
    void    Value(const char* prefix, const MyMatrix44& v, const char* float_format = NULL);
}
*/