sortlistctrl.cpp

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/*******************************************

             没事儿，尽管用。
                          --栾义明

*********************************************/


#include "stdafx.h"
#include "SortListCtrl.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

#define  ID_LIST_PRINT 200
#define  ID_LIST_SAVE  201
#define  ID_LIST_DELETE 202
#define	 ID_LIST_DELETEALL 203


LPCTSTR g_pszSection = _T("ListCtrls");


struct ItemData
{
public:
	ItemData() : arrpsz( NULL ), dwData( NULL ),crText ( NULL ),crBak (NULL) {}

	LPTSTR* arrpsz;
	DWORD dwData;
	//color
	COLORREF * crText;
	COLORREF * crBak;
	

private:
	// ban copying.
	ItemData( const ItemData& );
	ItemData& operator=( const ItemData& );
};


CSortListCtrl::CSortListCtrl()
	: m_iNumColumns( 0 )
	, m_iSortColumn( -1 )
	, m_bSortAscending( TRUE )
{
	crWindow              = ::GetSysColor(COLOR_WINDOW);
	crWindowText          = ::GetSysColor(COLOR_WINDOWFRAME);
	crHighLight     = ::GetSysColor(COLOR_HIGHLIGHT);
	crHighLightText = ::GetSysColor(COLOR_HIGHLIGHTTEXT);
	
}


CSortListCtrl::~CSortListCtrl()
{
}


BEGIN_MESSAGE_MAP(CSortListCtrl, CListCtrl)
	//{{AFX_MSG_MAP(CSortListCtrl)
	ON_NOTIFY_REFLECT(LVN_COLUMNCLICK, OnColumnClick)
	ON_WM_DESTROY()
	ON_WM_RBUTTONDOWN()
	ON_WM_PAINT()
	ON_NOTIFY_REFLECT(NM_CUSTOMDRAW, OnCustomDraw)
	ON_WM_SYSCOLORCHANGE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSortListCtrl message handlers

void CSortListCtrl::PreSubclassWindow()
{
	// the list control must have the report style.
	ASSERT( GetStyle() & LVS_REPORT );

	CListCtrl::PreSubclassWindow();
	VERIFY( m_ctlHeader.SubclassWindow( GetHeaderCtrl()->GetSafeHwnd() ) );
}


BOOL CSortListCtrl::SetHeadings( UINT uiStringID )
{
	CString strHeadings;
	VERIFY( strHeadings.LoadString( uiStringID ) );
	return SetHeadings( strHeadings );
}


// the heading text is in the format column 1 text,column 1 width;column 2 text,column 3 width;etc.
BOOL CSortListCtrl::SetHeadings( const CString& strHeadings )
{
	int iStart = 0;

	for( ;; )
	{
		const int iComma = strHeadings.Find( _T(','), iStart );

		if( iComma == -1 )
			break;

		const CString strHeading = strHeadings.Mid( iStart, iComma - iStart );

		iStart = iComma + 1;

		int iSemiColon = strHeadings.Find( _T(';'), iStart );

		if( iSemiColon == -1 )
			iSemiColon = strHeadings.GetLength();

		const int iWidth = atoi( strHeadings.Mid( iStart, iSemiColon - iStart ) );
		
		iStart = iSemiColon + 1;

		if( InsertColumn( m_iNumColumns++, strHeading, LVCFMT_LEFT, iWidth ) == -1 )
			return FALSE;
	}

	return TRUE;
}


int CSortListCtrl::AddItem( LPCTSTR pszText, ... )
{
	const int iIndex = InsertItem( GetItemCount(), pszText );
	LPTSTR* arrpsz = new LPTSTR[ m_iNumColumns ];
	COLORREF * clrText = new COLORREF[ m_iNumColumns ];
	COLORREF * clrBak= new COLORREF[ m_iNumColumns ];

	arrpsz[ 0 ] = new TCHAR[ lstrlen( pszText ) + 1 ];
	clrText[ 0 ] = crWindowText;
	clrBak[ 0 ] = crWindow;
	(void)lstrcpy( arrpsz[ 0 ], pszText );
	

 	va_list list;
	va_start( list, pszText );


	//insert sub item  and set subitem data
	for( int iColumn = 1; iColumn < m_iNumColumns; iColumn++ )
	{
		pszText = va_arg( list, LPCTSTR );
		ASSERT_VALID_STRING( pszText );
		VERIFY( CListCtrl::SetItem( iIndex, iColumn, LVIF_TEXT, pszText, 0, 0, 0, 0 ) );

		arrpsz[ iColumn ] = new TCHAR[ lstrlen( pszText ) + 1 ];
		clrText[ iColumn ] = crWindowText;
		clrBak[ iColumn ] = crWindow;
		(void)lstrcpy( arrpsz[ iColumn ], pszText );
	}

	va_end( list );

	VERIFY( SetArray( iIndex, arrpsz,clrText,clrBak ) );

	return iIndex;
}


void CSortListCtrl::FreeItemMemory( const int iItem )
{
	ItemData* pid = reinterpret_cast<ItemData*>( CListCtrl::GetItemData( iItem ) );



	LPTSTR* arrpsz = pid->arrpsz;

	for( int i = 0; i < m_iNumColumns; i++ )
	{
		delete[] arrpsz[ i ];	
	}
	delete[] pid->crText;
	delete[] pid->crBak;
	delete[] arrpsz;
	delete pid;


	VERIFY( CListCtrl::SetItemData( iItem, NULL ) );
}


BOOL CSortListCtrl::DeleteItem( int iItem )
{
	FreeItemMemory( iItem );
	return CListCtrl::DeleteItem( iItem );
}


BOOL CSortListCtrl::DeleteAllItems()
{
	for( int iItem = 0; iItem < GetItemCount(); iItem ++ )
		FreeItemMemory( iItem );

	return CListCtrl::DeleteAllItems();
}


bool IsNumber( LPCTSTR pszText )
{
	ASSERT_VALID_STRING( pszText );

	for( int i = 0; i < lstrlen( pszText ); i++ )
		if( !_istdigit( pszText[ i ] ) )
			return false;

	return true;
}


int NumberCompare( LPCTSTR pszNumber1, LPCTSTR pszNumber2 )
{
	ASSERT_VALID_STRING( pszNumber1 );
	ASSERT_VALID_STRING( pszNumber2 );

	const int iNumber1 = atoi( pszNumber1 );
	const int iNumber2 = atoi( pszNumber2 );

	if( iNumber1 < iNumber2 )
		return -1;
	
	if( iNumber1 > iNumber2 )
		return 1;

	return 0;
}


bool IsDate( LPCTSTR pszText )
{
	ASSERT_VALID_STRING( pszText );

	// format should be 99/99/9999.

	if( lstrlen( pszText ) != 10 )
		return false;

	return _istdigit( pszText[ 0 ] )
		&& _istdigit( pszText[ 1 ] )
		&& pszText[ 2 ] == _T('/')
		&& _istdigit( pszText[ 3 ] )
		&& _istdigit( pszText[ 4 ] )
		&& pszText[ 5 ] == _T('/')
		&& _istdigit( pszText[ 6 ] )
		&& _istdigit( pszText[ 7 ] )
		&& _istdigit( pszText[ 8 ] )
		&& _istdigit( pszText[ 9 ] );
}


int DateCompare( const CString& strDate1, const CString& strDate2 )
{
	const int iYear1 = atoi( strDate1.Mid( 6, 4 ) );
	const int iYear2 = atoi( strDate2.Mid( 6, 4 ) );

	if( iYear1 < iYear2 )
		return -1;

	if( iYear1 > iYear2 )
		return 1;

	const int iMonth1 = atoi( strDate1.Mid( 3, 2 ) );
	const int iMonth2 = atoi( strDate2.Mid( 3, 2 ) );

	if( iMonth1 < iMonth2 )
		return -1;

	if( iMonth1 > iMonth2 )
		return 1;

	const int iDay1 = atoi( strDate1.Mid( 0, 2 ) );
	const int iDay2 = atoi( strDate2.Mid( 0, 2 ) );

	if( iDay1 < iDay2 )
		return -1;

	if( iDay1 > iDay2 )
		return 1;

	return 0;
}


int CALLBACK CSortListCtrl::CompareFunction( LPARAM lParam1, LPARAM lParam2, LPARAM lParamData )
{
	CSortListCtrl* pListCtrl = reinterpret_cast<CSortListCtrl*>( lParamData );
	ASSERT( pListCtrl->IsKindOf( RUNTIME_CLASS( CListCtrl ) ) );

	ItemData* pid1 = reinterpret_cast<ItemData*>( lParam1 );
	ItemData* pid2 = reinterpret_cast<ItemData*>( lParam2 );

	ASSERT( pid1 );
	ASSERT( pid2 );


		LPCTSTR pszText1 = pid1->arrpsz[ pListCtrl->m_iSortColumn ];
		LPCTSTR pszText2 = pid2->arrpsz[ pListCtrl->m_iSortColumn ];


	ASSERT_VALID_STRING( pszText1 );
	ASSERT_VALID_STRING( pszText2 );

	if( IsNumber( pszText1 ) )
		return pListCtrl->m_bSortAscending ? NumberCompare( pszText1, pszText2 ) : NumberCompare( pszText2, pszText1 );
	else if( IsDate( pszText1 ) )
		return pListCtrl->m_bSortAscending ? DateCompare( pszText1, pszText2 ) : DateCompare( pszText2, pszText1 );
	else
		// text.
		return pListCtrl->m_bSortAscending ? lstrcmp( pszText1, pszText2 ) : lstrcmp( pszText2, pszText1 );
}


void CSortListCtrl::OnColumnClick( NMHDR* pNMHDR, LRESULT* pResult )
{
	NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;
	const int iColumn = pNMListView->iSubItem;

	// if it's a second click on the same column then reverse the sort order,
	// otherwise sort the new column in ascending order.
	Sort( iColumn, iColumn == m_iSortColumn ? !m_bSortAscending : TRUE );

	*pResult = 0;
}


void CSortListCtrl::Sort( int iColumn, BOOL bAscending )
{
	m_iSortColumn = iColumn;
	m_bSortAscending = bAscending;

	// show the appropriate arrow in the header control.
	m_ctlHeader.SetSortArrow( m_iSortColumn, m_bSortAscending );

	VERIFY( SortItems( CompareFunction, reinterpret_cast<DWORD>( this ) ) );
}


void CSortListCtrl::LoadColumnInfo()
{
	// you must call this after setting the column headings.
	ASSERT( m_iNumColumns > 0 );

	CString strKey;
	strKey.Format( _T("%d"), GetDlgCtrlID() );

	UINT nBytes = 0;
	BYTE* buf = NULL;
	if( AfxGetApp()->GetProfileBinary( g_pszSection, strKey, &buf, &nBytes ) )