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#pragma once
#include "cru/win/win_pre_config.hpp"
#include "cru/common/base.hpp"
#include <map>
#include <memory>
#include <vector>
namespace cru::win::native {
class WinApplication;
class WinNativeWindow;
class WindowClass;
class WindowManager : public Object {
public:
WindowManager(WinApplication* application);
WindowManager(const WindowManager& other) = delete;
WindowManager(WindowManager&& other) = delete;
WindowManager& operator=(const WindowManager& other) = delete;
WindowManager& operator=(WindowManager&& other) = delete;
~WindowManager() override = default;
// Get the general window class for creating ordinary window.
std::shared_ptr<WindowClass> GetGeneralWindowClass() const {
return general_window_class_;
}
// Register a window newly created.
// This function adds the hwnd to hwnd-window map.
// It should be called immediately after a window was created.
void RegisterWindow(HWND hwnd, WinNativeWindow* window);
// Unregister a window that is going to be destroyed.
// This function removes the hwnd from the hwnd-window map.
// It should be called immediately before a window is going to be destroyed,
void UnregisterWindow(HWND hwnd);
// Return a pointer to the Window object related to the HWND or nullptr if the
// hwnd is not in the map.
WinNativeWindow* FromHandle(HWND hwnd);
std::vector<WinNativeWindow*> GetAllWindows() const;
private:
WinApplication* application_;
std::shared_ptr<WindowClass> general_window_class_;
std::map<HWND, WinNativeWindow*> window_map_;
};
} // namespace cru::win::native
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