[FancyZones] Improve code quality (part 5: work area initialization) (#23671)

src/modules/fancyzones/FancyZonesLib/MonitorWorkAreaMap.h

@@ -0,0 +1,58 @@
+#pragma once
+
+#include "GuidUtils.h"
+
+class WorkArea;
+
+class MonitorWorkAreaMap
+{
+public:
+    /**
+     * Get work area based on virtual desktop id and monitor handle.
+     *
+     * @param[in]  monitor   Monitor handle.
+     *
+     * @returns    Object representing single work area, interface to all actions available on work area
+     *             (e.g. moving windows through zone layout specified for that work area).
+     */
+    WorkArea* const GetWorkArea(HMONITOR monitor) const;
+
+    /**
+     * Get work area based on virtual desktop id and the current cursor position.
+     *
+     * @returns    Object representing single work area, interface to all actions available on work area
+     *             (e.g. moving windows through zone layout specified for that work area).
+     */
+    WorkArea* const GetWorkAreaFromCursor() const;
+
+    /**
+     * Get work area on which specified window is located.
+     *
+     * @param[in]  window Window handle.
+     * 
+     * @returns    Object representing single work area, interface to all actions available on work area
+     *             (e.g. moving windows through zone layout specified for that work area).
+     */
+    WorkArea* const GetWorkAreaFromWindow(HWND window) const;
+
+    /**
+     * @returns    All registered work areas.
+     */
+    const std::unordered_map<HMONITOR, std::unique_ptr<WorkArea>>& GetAllWorkAreas() const noexcept;
+
+    /**
+     * Register new work area.
+     *
+     * @param[in]  monitor   Monitor handle.
+     * @param[in]  workAra   Object representing single work area.
+     */
+    void AddWorkArea(HMONITOR monitor, std::unique_ptr<WorkArea> workArea);
+
+    /**
+     * Clear all persisted work area related data.
+     */
+    void Clear() noexcept;
+    
+private:
+    std::unordered_map<HMONITOR, std::unique_ptr<WorkArea>> m_workAreaMap;
+};