Started editor windows refactor

Editor/SceneEditorWindow.cpp

@@ -0,0 +1,54 @@
+#include "SceneEditorWindow.h"
+
+#include "SelectionPropertyWidget.h"
+#include "SceneHierarchyWidget.h"
+
+#include <imgui/imgui.h>
+#include <imgui/imgui_internal.h>
+
+using namespace Nuake;
+
+SceneEditorWindow::SceneEditorWindow(Ref<Scene> inScene)
+{
+	editorContext = EditorContext(inScene);
+
+	RegisterWidget<SceneHierarchyWidget>();
+	RegisterWidget<SelectionPropertyWidget>();
+}
+
+void SceneEditorWindow::Update(float ts)
+{
+	for (auto& widget : widgets)
+	{
+		widget->Update(ts);
+	}
+}
+
+void SceneEditorWindow::Draw()
+{
+	Ref<Scene> scene = editorContext.GetScene();
+	const std::string sceneName = scene->GetName();
+
+	// This is to prevent other windows of other scene editors to dock 
+	// into this window
+	ImGuiWindowClass windowClass;
+	windowClass.ClassId = ImHashStr("SceneEditor");
+	windowClass.DockingAllowUnclassed = false;
+	ImGui::SetNextWindowClass(&windowClass);
+
+	if (ImGui::Begin(sceneName.c_str()))
+	{
+		ImGuiWindowClass localSceneEditorClass;
+		localSceneEditorClass.ClassId = ImHashStr(sceneName.c_str());
+		std::string dockspaceId = std::string("Dockspace##" + sceneName);
+		ImGui::DockSpace(ImGui::GetID(dockspaceId.c_str()), ImGui::GetContentRegionAvail(), ImGuiDockNodeFlags_None, &localSceneEditorClass);
+		
+		for (auto& widget : widgets)
+		{
+			widget->Draw();
+		}
+
+		ImGui::End();
+	}
+}
+