add imgui custom color picker component

src/GUI/CMakeLists.txt

@@ -17,3 +17,5 @@ target_sources(
     ${CMAKE_CURRENT_SOURCE_DIR}/SideBar.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/SettingsPanel.cpp
 )
+
+add_subdirectory(Components)

src/GUI/Components/CMakeLists.txt

@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 3.27)
+
+target_sources(
+    ${PROJECT_NAME}
+    PRIVATE
+    ${CMAKE_CURRENT_SOURCE_DIR}/CustomColorPicker.cpp
+)

src/GUI/Components/CustomColorPicker.cpp

@@ -0,0 +1,67 @@
+#include "Imgui.hpp"
+#include "imgui.h"
+
+namespace Xash
+{
+	namespace GUI
+	{
+		static bool colorLabelClickable(const std::string_view label, const ImVec4 &color)
+		{
+			bool isClicked = false;
+
+			ImGui::ColorButton("##ColorPreview", color, ImGuiColorEditFlags_NoPicker);
+			if (ImGui::IsItemClicked())
+			{
+				isClicked = true;
+			}
+			ImGui::SameLine();
+			ImGui::Text("%s", label.data());
+			if (ImGui::IsItemClicked())
+			{
+				isClicked = true;
+			}
+			return isClicked;
+		}
+
+		static bool drawPopup(const std::string_view label, ImVec4 &color)
+		{
+			if (ImGui::BeginPopup(label.data()))
+			{
+				ImGui::ColorPicker4(
+					"##ColorPicker", (float *)&color,
+					ImGuiColorEditFlags_DisplayRGB | ImGuiColorEditFlags_NoInputs
+						| ImGuiColorEditFlags_NoSidePreview
+				);
+				// Slider for each color component
+				ImGui::SliderFloat("##Red", &color.x, 0.0f, 1.0f, "R: %.3f");
+				ImGui::SliderFloat("##Green", &color.y, 0.0f, 1.0f, "G: %.3f");
+				ImGui::SliderFloat("##Blue", &color.z, 0.0f, 1.0f, "B: %.3f");
+				ImGui::SliderFloat("##Alpha", &color.w, 0.0f, 1.0f, "A: %.3f");
+				return true;
+			}
+			return false;
+		}
+
+		void Imgui::CustomColorPicker(
+			const std::string_view label, std::function<Vector4()> getter,
+			std::function<void(const Vector4 &)> setter, ImGuiCol_ colorIndex
+		)
+		{
+			const auto &settingColor = getter();
+			ImVec4 color{settingColor.x, settingColor.y, settingColor.z, settingColor.w};
+			bool isClicked = colorLabelClickable(label, color);
+
+			if (isClicked)
+			{
+				ImGui::OpenPopup(label.data());
+			}
+			if (drawPopup(label, color))
+			{
+				ImGui::GetStyle().Colors[colorIndex] =
+					ImVec4(color.x, color.y, color.z, color.w);
+				setter({color.x, color.y, color.z, color.w});
+				ImGui::EndPopup();
+			}
+		}
+	} // namespace GUI
+} // namespace Xash

src/GUI/Imgui.hpp

@@ -6,9 +6,11 @@
 #include <vector>
 #include <string>
 #include <utility>
+#include <functional>
 #include "ModInfos.hpp"
 #include "MonoModule.hpp"
 #include "imgui.h"
+#include "StyleSettings.hpp"
 
 namespace Xash
 {
@@ -29,6 +31,12 @@ namespace Xash
 			void Draw();
 			void Render();
 
+		// Custom ImGui Widgets
+			static void CustomColorPicker(
+				const std::string_view label, std::function<Vector4()> getter,
+				std::function<void(const Vector4 &)> setter, ImGuiCol_ colorIndex
+			);
+
 		private:
 			enum class ActivePanel : uint8_t
 			{

src/settings/CMakeLists.txt

@@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 3.27)
+
+target_include_directories(
+    ${PROJECT_NAME}
+    PRIVATE
+    ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+target_sources(
+    ${PROJECT_NAME}
+    PRIVATE
+    ${CMAKE_CURRENT_SOURCE_DIR}/XashSettings.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/StyleSettings.cpp
+)