Replace GLEW with GLAD and fix Windows and macOS support

CMakeLists.txt

@@ -1,8 +1,14 @@
 cmake_minimum_required(VERSION 3.14)
 project(SubChat LANGUAGES C CXX)
+if (APPLE)
+    enable_language(OBJC)
+endif ()
 
 set(CMAKE_CXX_STANDARD 23)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON) # does not produce the json file
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON CACHE INTERNAL "") # works
+
 
 if (NOT CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build (Debug or Release)" FORCE)
@@ -40,7 +46,9 @@ target_include_directories(subtitles_generator
         ${UTFCPP_DIR}/source
         ${MAGICENUM_DIR}/include/magic_enum
 )
-target_link_options(subtitles_generator PRIVATE -static)
+if (NOT APPLE)
+    target_link_options(subtitles_generator PRIVATE -static)
+endif ()
 target_link_libraries(subtitles_generator
         PRIVATE
         CLI11::CLI11
@@ -52,7 +60,10 @@ target_link_libraries(subtitles_generator
 if (BUILD_GUI)
     # Find GUI dependencies
     find_package(OpenGL REQUIRED)
-    find_package(GLEW REQUIRED)
+
+    # glad configuration
+    set(GLAD_DIR "${CMAKE_SOURCE_DIR}/submodules/glad")
+    include_directories(${GLAD_DIR}/include)
 
     # GLFW configuration
     set(GLFW_DIR "${CMAKE_SOURCE_DIR}/submodules/glfw")
@@ -73,6 +84,7 @@ if (BUILD_GUI)
 
     # Add GUI executable
     add_executable(config_generator_gui
+            ${GLAD_DIR}/src/glad.c
             ${IMGUI_DIR}/backends/imgui_impl_glfw.cpp
             ${IMGUI_DIR}/backends/imgui_impl_opengl3.cpp
             ${IMGUI_DIR}/imgui.cpp
@@ -90,7 +102,6 @@ if (BUILD_GUI)
             PRIVATE
             glfw
             OpenGL::GL
-            GLEW::GLEW
             nfd
     )
-endif ()
+endif ()

Makefile

@@ -0,0 +1,9 @@
+build: 
+	cmake -B build .
+	cmake --build build
+
+.PHONY: clean
+clean: 
+	mkdir build
+	rm -rf build 
+

cli_main.cpp

@@ -1,3 +1,10 @@
+#if defined(_WIN32)
+// Do not include most things and no min/max defines (std::min/std::max).
+#define WIN32_LEAN_AND_MEAN
+#define NOMINMAX
+#include <Windows.h>
+#endif
+
 #include "ytt_generator.h"
 #include <CLI/CLI.hpp>
 #include <iostream>

gui_main.cpp

@@ -2,10 +2,17 @@
 #define IMGUI_DEFINE_MATH_OPERATORS
 #endif // IMGUI_DEFINE_MATH_OPERATORS
 
+#if defined(_WIN32)
+// Do not include most things and no min/max defines (std::min/std::max).
+#define WIN32_LEAN_AND_MEAN
+#define NOMINMAX
+#include <Windows.h>
+#endif
+
 #include "imgui.h"
 #include "imgui_impl_glfw.h"
 #include "imgui_impl_opengl3.h"
-#include <GL/glew.h>
+#include <glad/glad.h>
 #include <cstdio>
 
 #define GL_SILENCE_DEPRECATION
@@ -106,10 +113,8 @@ void ApplyDPI(float dpi_scale) {
     ImGui::GetStyle() = default_style;
     ImGuiStyle &style = ImGui::GetStyle();
     style.ScaleAllSizes(dpi_scale);
-
 }
 
-
 void ShowDockSpace() {
     ImGuiViewport *vp = ImGui::GetMainViewport();
     ImGui::SetNextWindowPos(vp->Pos);
@@ -168,15 +173,24 @@ int main(int, char **) {
     glfwSetErrorCallback(glfw_error_callback);
     if (!glfwInit())
         return 1;
-    const char *glsl_version = "#version 130";
+    const char* glsl_version = "#version 330 core";
     glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
-    GLFWwindow *window = glfwCreateWindow(1280, 720, "SubChat Config Generator", nullptr, nullptr);
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
+    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+    // https://stackoverflow.com/a/68879218/14915825
+#ifdef __APPLE__
+    glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
+#endif
+
+    GLFWwindow* window = glfwCreateWindow(1280, 720, "SubChat Config Generator", nullptr, nullptr);
     if (window == nullptr)
         return 1;
     glfwMakeContextCurrent(window);
     glfwSwapInterval(1);
 
+    if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress))
+        return 1;
+
     if (NFD_Init() != NFD_OKAY) {
         printf("Error: %s\n", NFD_GetError());
         return 1;