listviewex.h

UHF RFID Reader Program

 // CJListView.h : header file
// Copyright ?1998-1999 CodeJock.com, All Rights Reserved.
// See ReadMe.txt for TERMS OF USE.
//
// Based on the CListView articles from http://www.codeguru.com/listview
//
/////////////////////////////////////////////////////////////////////////////

#ifndef __LISTVIEW_H__
#define __LISTVIEW_H__

#if _MSC_VER >= 1000
#pragma once
#endif // _MSC_VER >= 1000

#include <afxcview.h>
#include "ThemeHelperEx.h"		// CCJThemeHelper class declaration

namespace techwin
{

class CHeaderCtrlEx;


// CListViewEx is a CListView derived class which implements a
// flat header and generic sorting routines.
class CListViewEx : public CListView
{
	DECLARE_DYNCREATE(CListViewEx)

public:

	// Default constructor
	//
	CListViewEx();

	// Virtual destructor
	//
	virtual ~CListViewEx();

protected:

	int					m_nMinColWidth;		// minimum width for columns
	int					m_nMaxColWidth;		// maximum width for columns
	int					m_nSortedCol;		// index of currently selected column
	CHeaderCtrlEx*		m_pHeaderCtrl;		// points to subclassed flat header control.
	CString				m_strSection;		// registry section name.
	CString				m_strEntry;			// registry entry name.
	CString				m_strDefault;		// registry default value.
	CListCtrl*			m_pListCtrl;		// points to the list control associated with this view.
	COLORREF			m_clrText;			// RGB value for row text color.
	COLORREF			m_clrTextBk;		// RGB value for row text background color.
	bool				m_bNoColSizing;		// if true, column sizing is disabled.
	int					m_nMinSize;			// if set, columns will have a minimum size requirement.
	CThemeHelperEx*		m_pTheme;			// WinXP theme helper (AJM 13.12.2002)

//private:

	bool				m_bAutoSave;		// true if saving column widths.
	bool				m_bAscending;		// flag to determine sorting order

// Operations
public:
	
	// this member function will return the column width stored in the registry.
	//
	virtual int GetStoredWidth(int nCol);

	// this member function will automatically size a given column.
	//
	virtual void AutoSizeColumn(int nCol=-1);

	// this member function will set the column width from the
	// registry settings.
	//
	virtual void SetColumnWidth(int nCol);

	// this member function loads column widths from the registry.
	//
	virtual void LoadColumnWidths();

	// this member function saves column widths to the registry.
	//
	virtual void SaveColumnWidths();

	// this member function will initialize the autosave feature. If called
	// column widths will be saved to system registry when the list control
	// window is destroyed.
	//
	virtual void AutoSaveColumns(
		// registry section name, if NULL the default is "Settings".
		LPCTSTR lpszSection=NULL,
		// registry entry name, if NULL the default is "Column Info".
		LPCTSTR lpszEntry=NULL,
		// registry default value, if NULL the default id "".
		LPCTSTR lpszDefault=NULL);

	// call this member function to subclass the the flat header control.
	//
	virtual bool SubclassHeader(bool bBoldFont=false);

	// override this member function in your derived class to
	// peform custom sort routines.
	//
	virtual bool SortList(
		// passed in from control, index of column clicked.
		int nCol,
		// passed in from control, true if sort order should be ascending.
		bool bAscending );

	// this member function is called to set extended styles for the list
	// control ie: LVS_EX_FULLROWSELECT, LVS_EX_GRIDLINES, LVS_EX_HEADERDRAGDROP.
	//
	virtual void SetExtendedStyle( DWORD dwExStyle );

	// this member function is called to return the list control extended style.
	//
	virtual DWORD GetExtendedStyle();

	// call this member function to enable/disable column sizing
	//
	virtual void DisableColumnSizing(bool bDisable);

	// call this member function to set a minimum column size
	//
	virtual void SetMinimumColSize(int nSize);

	// call this member function to determine the row index and column index for a point.
	// returns the row index or -1 if point is not over a row.
	//
	virtual int HitTestEx(
		// point to be tested.
		CPoint &point,
		// to hold the column index
		int *col) const;

	// adds column after the right most column.
	//
	virtual int AddColumn(
		// the column's heading
		LPCTSTR lpszColHeading,
		// Width of the column, in pixels. If this parameter is -1, 
		// the column width is the same as previous column
		int nWidth = -1,
		// the alignment of the column. Can be LVCFMT_LEFT,
		// LVCFMT_RIGHT, or LVCFMT_CENTER.
		int nFormat=LVCFMT_LEFT);
	
	// this member function will build the columns for the list control. Returns
	// false if an error occured.
	//
	virtual bool BuildColumns(
		// number of columns the list control contains
		int nCols,
		// int array containing the column widths
		int* nWidth,
		// CString array containing the string for each column
		CString* strColString );
	
	// this member function will build the columns for the list control. Returns
	// false if an error occured.
	//
	virtual bool BuildColumns(
		// number of columns the list control contains
		int nCols,
		// int array containing the column widths
		int* nWidth,
		// int array containing the  string resource id for each column
		int* nColString );

	// sets the row text and background colors.
	virtual void SetRowColors(COLORREF clrText = CLR_DEFAULT, COLORREF clrTextBk = CLR_DEFAULT);
	
	// returns the number of columns in the list.
	virtual int GetColumnCount() const;

	// copies a row to a new location.
	//
	virtual bool CopyRow(int nFrom, int nTo);

	// moves a row to a new location.
	//
	virtual bool MoveRow(int nFrom, int nTo);

			void SetThemeHelper(CThemeHelperEx* pTheme);
	
	virtual	int SetSortImage(int nCol, bool bAsc);


// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CListViewEx)
	public:
	virtual void OnInitialUpdate();
	protected:
	virtual void OnDraw(CDC* pDC);      // overridden to draw this view
	virtual BOOL OnNotify(WPARAM wParam, LPARAM lParam, LRESULT* pResult);

	struct ColumnState
	{
		ColumnState()
			:m_Visible(false)
			,m_OrgWidth(0)
			,m_OrgPosition(-1)
		{}
		bool m_Visible;
		int  m_OrgWidth;	// Width it had before being hidden
		int  m_OrgPosition;	// Position it had before being hidden
	};
	CSimpleArray<ColumnState>	m_ColumnStates;
	int GetColumnStateCount();
	void InsertColumnState(int nCol, bool bVisible, int nOrgWidth = 0);
	void DeleteColumnState(int nCol);
	ColumnState& GetColumnState(int nCol);


	virtual afx_msg void OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags);
	virtual afx_msg LRESULT OnDeleteColumn(WPARAM wParam, LPARAM lParam);
	virtual afx_msg LRESULT OnInsertColumn(WPARAM wParam, LPARAM lParam);
	virtual afx_msg LRESULT OnSetColumnWidth(WPARAM wParam, LPARAM lParam);
	virtual afx_msg BOOL OnHeaderBeginResize(UINT id, NMHDR* pNmhdr, LRESULT* pResult);
	virtual afx_msg BOOL OnHeaderEndDrag(UINT id, NMHDR* pNmhdr, LRESULT* pResult);
	virtual afx_msg BOOL OnHeaderDividerDblClick(UINT, NMHDR* pNMHDR, LRESULT* pResult);
	virtual afx_msg void OnContextMenu(CWnd*, CPoint point);
	virtual BOOL OnCommand(WPARAM wParam, LPARAM lParam);

//	virtual void PreSubclassWindow();

	bool IsColumnVisible(int nCol);
	int GetFirstVisibleColumn();
	BOOL ShowColumn(int nCol, bool bShow);
	BOOL SetColumnWidthAuto(int nCol = -1, bool includeHeader = false);

	//}}AFX_VIRTUAL

// Implementation
protected:
#ifdef _DEBUG
	virtual void AssertValid() const;
#ifndef _WIN32_WCE
	virtual void Dump(CDumpContext& dc) const;
#endif
#endif

	// Generated message map functions
protected:
	//{{AFX_MSG(CListViewEx)
	afx_msg void OnCustomDraw(NMHDR* pNMHDR, LRESULT* pResult);
	afx_msg void OnDestroy();
	afx_msg BOOL OnEraseBkgnd(CDC* pDC);

	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

/////////////////////////////////////////////////////////////////////////////
//	Inline Functions
/////////////////////////////////////////////////////////////////////////////

inline DWORD CListViewEx::GetExtendedStyle()
	{ ASSERT(::IsWindow(m_hWnd)); return (DWORD)SendMessage(LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); }

inline void CListViewEx::SetExtendedStyle(DWORD dwExStyle)
	{ ASSERT(::IsWindow(m_hWnd)); SendMessage(LVM_SETEXTENDEDLISTVIEWSTYLE, 0, GetExtendedStyle()|dwExStyle); }

inline void CListViewEx::SetRowColors(COLORREF clrText, COLORREF clrTextBk)
	{ m_clrText = clrText; m_clrTextBk = clrTextBk; }

inline void CListViewEx::SetMinimumColSize(int nSize)
	{ m_nMinSize = nSize; }

inline void CListViewEx::DisableColumnSizing(bool bDisable)
	{ m_bNoColSizing = bDisable; }

/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Developer Studio will insert additional declarations immediately before the previous line.
};
#endif // __LISTVIEW_H__