cimgui is working

imgui.ini

@@ -0,0 +1,19 @@
+[Window][Debug##Default]
+Pos=60,60
+Size=400,400
+Collapsed=0
+
+[Window][Dear ImGui Demo]
+ViewportPos=1381,242
+ViewportId=0xE927CF2F
+Size=550,680
+Collapsed=0
+
+[Window][Test Window]
+ViewportPos=1469,242
+ViewportId=0x872DD4D0
+Size=193,115
+Collapsed=0
+
+[Docking][Data]
+

src/CMakeLists.txt

@@ -9,12 +9,45 @@ add_executable(sortalgs
     "algorithms/shellsort.c"
 )
 
-target_include_directories(sortalgs PRIVATE
+set(CIMGUI_SOURCE_DIR ${CMAKE_SOURCE_DIR}/vendor/cimgui)
+
+if (WIN32)
+    add_definitions("-DIMGUI_IMPL_API=extern \"C\" __declspec\(dllexport\)")
+else()
+    add_definitions("-DIMGUI_IMPL_API=extern \"C\" ")
+endif()
+
+add_library(cimgui STATIC
+    ${CIMGUI_SOURCE_DIR}/cimgui.cpp
+    ${CIMGUI_SOURCE_DIR}/imgui/imgui.cpp
+    ${CIMGUI_SOURCE_DIR}/imgui/imgui_demo.cpp
+    ${CIMGUI_SOURCE_DIR}/imgui/imgui_draw.cpp
+    ${CIMGUI_SOURCE_DIR}/imgui/imgui_tables.cpp
+    ${CIMGUI_SOURCE_DIR}/imgui/imgui_widgets.cpp
+
+    ${CIMGUI_SOURCE_DIR}/imgui/backends/imgui_impl_opengl3.cpp
+    ${CIMGUI_SOURCE_DIR}/imgui/backends/imgui_impl_glfw.cpp
+)
+
+target_include_directories(cimgui PUBLIC
+    ${CIMGUI_SOURCE_DIR}
+    ${CIMGUI_SOURCE_DIR}/imgui
+    ${CIMGUI_SOURCE_DIR}/imgui/backends
+)
+
+target_link_libraries(cimgui PRIVATE
+    glfw
+    glad
+)
+
+target_include_directories(sortalgs PUBLIC
     ${CMAKE_CURRENT_LIST_DIR}
+    ${CMAKE_SOURCE_DIR}/vendor/cimgui/generator/output
 )
 
 target_link_libraries(sortalgs PRIVATE
     glfw
     glad
     cglm
+    cimgui
 )

src/application.c

@@ -6,6 +6,10 @@
 #include <glad/glad.h>
 #include <GLFW/glfw3.h>
 
+#define CIMGUI_DEFINE_ENUMS_AND_STRUCTS
+#include <cimgui.h>
+#include <cimgui_impl.h>
+
 #include "visualizers/histogram.h"
 #include "algorithms.h"
 
@@ -44,6 +48,18 @@ int init_application(Application* app, int width, int height, const char* title)
 
     glViewport(0, 0, width, height);
 
+    igCreateContext(NULL);
+
+    ImGuiIO* io = igGetIO(); (void*)io;
+    io->ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
+    io->ConfigFlags |= ImGuiConfigFlags_DockingEnable;
+    io->ConfigFlags |= ImGuiConfigFlags_ViewportsEnable;
+
+    ImGui_ImplGlfw_InitForOpenGL(window, true);
+    ImGui_ImplOpenGL3_Init("#version 460");
+
+    igStyleColorsDark(NULL);
+
     app->active_visualizer = &histogram_visualizer;
 
     visualizer_data.array_size = 1500;
@@ -68,6 +84,10 @@ int init_application(Application* app, int width, int height, const char* title)
 
 void destroy_application(Application* app)
 {
+    ImGui_ImplOpenGL3_Shutdown();
+    ImGui_ImplGlfw_Shutdown();
+    igDestroyContext(NULL);
+
     app->active_visualizer->exit();
 
     if(app->window)
@@ -79,9 +99,9 @@ void run_application(Application* app)
     GLFWwindow* window = app->window;
 
     // bubblesort(app);
-    // mergesort(app);
+    mergesort(app);
     // insertionsort(app);
-    shellsort(app);
+    // shellsort(app);
 
     while(!glfwWindowShouldClose(window))
     {
@@ -96,8 +116,30 @@ int update_screen(Application* app)
     glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
     glClear(GL_COLOR_BUFFER_BIT);
 
+    ImGui_ImplOpenGL3_NewFrame();
+    ImGui_ImplGlfw_NewFrame();
+    igNewFrame();
+
     app->active_visualizer->render();
 
+    if(igBegin("Test Window", NULL, 0))
+    {
+        igText("cImGui is working");
+
+        igEnd();
+    }
+
+    igRender();
+    ImGui_ImplOpenGL3_RenderDrawData(igGetDrawData());
+
+    if (igGetIO()->ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
+	{
+		GLFWwindow* backup_current_context = glfwGetCurrentContext();
+		igUpdatePlatformWindows();
+		igRenderPlatformWindowsDefault(NULL, NULL);
+		glfwMakeContextCurrent(backup_current_context);
+	}
+
     glfwSwapBuffers(app->window);
     return glfwWindowShouldClose(app->window);
 }