Add ImGui Manager to manage creation and deletion of contexts

scwx-qt/source/scwx/qt/manager/imgui_manager.hpp

@@ -0,0 +1,55 @@
+#pragma once
+
+#include <memory>
+#include <string>
+
+#include <QObject>
+
+struct ImGuiContext;
+
+namespace scwx
+{
+namespace qt
+{
+namespace manager
+{
+
+class ImGuiManagerImpl;
+
+struct ImGuiContextInfo
+{
+   size_t        id_ {};
+   std::string   name_ {};
+   ImGuiContext* context_ {};
+
+   bool operator==(const ImGuiContextInfo& o) const;
+};
+
+class ImGuiManager : public QObject
+{
+private:
+   Q_OBJECT
+   Q_DISABLE_COPY(ImGuiManager)
+
+public:
+   explicit ImGuiManager();
+   ~ImGuiManager();
+
+   ImGuiContext* CreateContext(const std::string& name);
+   void          DestroyContext(const std::string& name);
+
+   std::vector<ImGuiContextInfo> contexts() const;
+
+   static ImGuiManager& Instance();
+
+signals:
+   void ContextsUpdated();
+
+private:
+   friend class ImGuiManagerImpl;
+   std::unique_ptr<ImGuiManagerImpl> p;
+};
+
+} // namespace manager
+} // namespace qt
+} // namespace scwx