GUIStatusBar.h

#pragma once
#include <afxstatusbar.h>
#include <unordered_set>
#include <unordered_map>
 
namespace FLImaging
{
    namespace GUI
    {
        class FL_EXPORT CGUIStatusBar : public CMFCStatusBar
        {
        public:
            CGUIStatusBar();
            virtual ~CGUIStatusBar();
 
        public:
            bool Create(CWnd* pParentWnd, DWORD dwStyle = WS_CHILD | WS_VISIBLE | CBRS_BOTTOM, UINT nID = AFX_IDW_STATUS_BAR);
 
            virtual BOOL SetPaneText(int nIndex, LPCTSTR lpszNewText, BOOL bUpdate = TRUE);
            void SetPaneTextColorNonUpdate(int nIndex, COLORREF clrText = (COLORREF)-1 /* Default*/);
            void SetPaneInfoNonUpdate(int nIndex, UINT nID, UINT nStyle, int cxWidth);
 
            virtual void ShowItem(int32_t i32Index, bool bShow);
            virtual bool IsItemVisible(int32_t i32Index) const;
 
            virtual const CResult SetItemElasticMinimumWidth(int32_t i32Index, int32_t i32MinimumWidth);
            virtual const CResult ClearItemElasticMinimumWidth(int32_t i32Index);
            virtual const CResult GetItemElasticMinimumWidth(int32_t i32Index, int32_t& i32MinimumWidth) const;
 
            virtual void NeedToUpdateLayout();
            virtual void Update();
 
            void LockUpdate();
            void UnlockUpdate();
            virtual void RecalcLayout() override;
 
        protected:
            virtual void DoPaint(CDC* pDC) override;
            virtual void OnDrawPane(CDC* pDC, CMFCStatusBarPaneInfo* pPane) override;
 
            virtual void JudgeUpdateAvailable();
            virtual bool IsUpdateAvailable();
            static unsigned __stdcall InternalThreadRemainingUpdate(void* pParam);
            void InitializeThreadRemainingUpdate();
            void TerminateThreadRemainingUpdate();
 
        protected:
            CMFCStatusBarPaneInfo* _FLGetPanePtr(int nIndex);
 
            bool m_arrBUpdated[1024];           
            bool m_bNeedToUpdateLayout;
            bool m_bLockUpdate;
 
            std::unordered_set<int32_t>& m_setHidedItemIndex;
            std::unordered_map<int32_t, int32_t>& m_mapItemElasticMinimumWidth;
            Base::CPerformanceCounter m_pcLastUpdateCounter;
            volatile bool m_bUpdateAvailable;
            volatile bool m_bUpdateBlocked;
            volatile bool m_bRemainingUpdateThread;
            HANDLE m_hThreadRemainingUpdate;
 
            bool m_bWindowSizeUpdated;
 
        public:
 
            bool m_bTerminateApp;
 
            DECLARE_MESSAGE_MAP()
            afx_msg void OnNcPaint();
            afx_msg void OnDestroy();
 
            friend class CGUIViewImageBase;
        };
    }
}