#pragma once
#include "common.h"
#include "LListener.h"
#include "T2DlgItem.h"

class AFX_CLASS_EXPORT T2DlgItemTable : public T2DlgItem, public LListener {
public:
	enum ScrollerStyle {
		ShowIfNeeded,
        AlwaysHide,
        AlwaysShow,
        Attached,
        AttachedNoUpdates
	};

	T2DlgItemTable(T2TowerDoc* towerDoc, T2ImageObj* imageObj, CPalette* palette);
	T2DlgItemTable(int rows, int cols, int rowHeight, int colWidth, int cellDataSize, T2TowerDoc* towerDoc, T2ImageObj* imageObj, CPalette* palette);

	virtual ~T2DlgItemTable();
	virtual BOOL Create(const char* inWindowName, DWORD inStyle, const RECT& inRect, CWnd* inParentWnd, UINT inID);
	virtual void InsertRows(int, UINT, void*);
	virtual void InsertCols(int, UINT, void*);
	virtual void RemoveRows(int, UINT);
	virtual void RemoveCols(int, UINT);
	virtual void SetRowHeight(int, unsigned int, unsigned int);
	virtual void SetColWidth(int, unsigned int, unsigned int);
	virtual void SetCellData(const TableCellT&, void*);
	virtual void GetCellData(const TableCellT&, void*);
	virtual void SelectCell(const TableCellT&);
	virtual void ToggleCell(const TableCellT&);
	virtual void ClearSelectedCells();

	void GetTableSize(UINT& outRows, UINT& outCols) const;
	BOOL IsMultiSelectable() const;
	void EnableMultiSelect(BOOL);
	BOOL IsValidCell(const TableCellT&) const;
	BOOL EqualCell(const TableCellT&, const TableCellT&) const;
	void SetCellDataSize(int);
	BOOL IsSelected(const TableCellT&) const;
	void GetSelectedCell(TableCellT&) const;
	virtual void ListenToMessage(unsigned int, void*);
	T2DlgItemHScr* GetHScroller() const;
	T2DlgItemVScr* GetVScroller() const;
	void AttachHScroller(T2DlgItemHScr* scroller, BOOL flag);
	void AttachVScroller(T2DlgItemVScr* scroller, BOOL flag);
	void SetHScrollerStyle(ScrollerStyle style);
	void SetVScrollerStyle(ScrollerStyle style);

protected:
	virtual BOOL OnCommand(UINT, long);
	virtual BOOL OnT2DlgItemEraseBkgnd(CDC*);
	virtual void OnT2DlgItemLButtonDown(UINT, CPoint);
	virtual void OnT2DlgItemLButtonUp(UINT, CPoint);
	virtual void OnT2DlgItemMouseMove(UINT, CPoint);
	virtual BOOL OnT2DlgItemCreate(CREATESTRUCT*);
	virtual void OnT2Size(unsigned int, int, int);

	virtual void ClickSelf(const POINT&, UINT nFlags);
	virtual void HiliteCells(CDC*, LArrayIterator&);
	virtual void UnhiliteCells(CDC*, LArrayIterator&);
	virtual void HiliteCell(CDC*, const TableCellT&);
	virtual void UnhiliteCell(CDC*, const TableCellT&);
	virtual void ClickCell(const TableCellT&, const POINT&);
	virtual void DrawCell(CDC*, const TableCellT&);
	virtual BOOL FetchLocalCellFrame(const TableCellT&, RECT&);
	virtual void FetchCellHitBy(const POINT&, TableCellT&);

	int FetchCellDataIndex(const TableCellT&);
	void InvalidateCell(const TableCellT&);
	void ViewToClient(POINT*, int);
	void ClientToView(POINT*, int);
	void DoScroll();
	BOOL IsOwnHScroller() const;
	BOOL IsOwnVScroller() const;

    UINT mRows;
    UINT mCols;
    int mRowHeight;
    int mColWidth;
    LArray *mCellData;
    TableCellT mClickedCell;
    TableCellT mSelectedCell;
    LArray *mMultiSelectedCells;
    POINT mScrollOffset;
    T2DlgItemHScr *mHScroller;
    T2DlgItemVScr *mVScroller;
    BOOL mShowHScroller;
    BOOL mShowVScroller;
    int mResizeCount;
    ScrollerStyle mVScrollerStyle;
    ScrollerStyle mHScrollerStyle;

private:
	void InitTable(int rows, int cols, int rowHeight, int colWidth, int cellDataSize);
	BOOL Resized();
};

class AFX_CLASS_EXPORT TableCellIterator {
public:
	TableCellIterator(const TableCellT& start, const TableCellT& end);
	BOOL Next(TableCellT& newCurrent);

protected:
    UINT mCurrentRow;
    UINT mCurrentCol;
    UINT mLastRow;
    UINT mFirstCol;
    UINT mLastCol;
};