Version 1.6.0 - ImGui Docking Feature (#3)

* Add docking feature of imgui

* bump version

Author: maede97

CMakeLists.txt

@@ -15,10 +15,6 @@ file(GLOB IMGUI_CORE_SRC
     external/imgui/*.cpp
 )
 
-list(REMOVE_ITEM IMGUI_CORE_SRC
-    external/imgui/imgui_demo.cpp
-)
-
 set(IMGUI_BACKEND_SRC
     external/imgui/backends/imgui_impl_glfw.cpp
     external/imgui/backends/imgui_impl_opengl3.cpp

external/imgui

@@ -1,4 +1,4 @@
 #pragma once
 
-#define VERSION "1.5.0"
-#define DATE "23.01.2026"
+#define VERSION "1.6.0"
+#define DATE "26.01.2026"

include/entropy/version.h

@@ -248,8 +248,11 @@ void initializeWindowAndGL(GLFWwindow *&window, GLuint &tex) {
     IMGUI_CHECKVERSION();
     ImGui::CreateContext();
     ImGuiIO &io = ImGui::GetIO();
-    io.IniFilename = nullptr;
+    io.IniFilename = "entropy_visualizer.ini";
     io.LogFilename = nullptr;
+
+    io.ConfigFlags |= ImGuiConfigFlags_DockingEnable;
+
     (void)io;
     ImGui::StyleColorsDark();
     ImGui_ImplGlfw_InitForOpenGL(window, true);
@@ -272,6 +275,8 @@ void mainLoop(GLFWwindow *window, GLuint tex, AppState &state, UiState &uiState,
         ImGui_ImplGlfw_NewFrame();
         ImGui::NewFrame();
 
+        ImGui::DockSpaceOverViewport(0, ImGui::GetMainViewport(), ImGuiDockNodeFlags_PassthruCentralNode);
+
         size_t block_size = state.block_width * state.block_height;
 
         // Handle dropped files