listctrlx.cpp

winCE listctrl 扩展

// ListCtrlX.cpp : implementation file
//
#include "stdafx.h"

#include "ListCtrlX.h"

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

CListCtrlX::CListCtrlX()
{

}

CListCtrlX::~CListCtrlX()
{
	
}

BEGIN_MESSAGE_MAP(CListCtrlX, CListCtrl)
	//{{AFX_MSG_MAP(CListCtrlX)
	ON_NOTIFY_REFLECT(LVN_COLUMNCLICK, OnColumnClick)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

BOOL CListCtrlX::OnCommand(WPARAM wParam, LPARAM lParam)
{
	CString sBuffer;
	int     nSrcColumn = -1;
	int     nDesColumn = -1;

	nDesColumn = wParam - BEGIN_CTRL_ID;
	m_Popup.GetMenuString(wParam, sBuffer, MF_BYCOMMAND);

	int nColumnCount = GetHeaderCtrl()->GetItemCount();
	int nMenuCount   = m_Popup.GetMenuItemCount();
	LVCOLUMN column;
	column.mask = LVCF_TEXT;
	column.cchTextMax = 50;
	WCHAR buffer[50];
	column.pszText = buffer;

	for(int n=0;n<nColumnCount;n++)
	{
		GetColumn(n, &column);
		if(sBuffer == buffer)
		{
			nDesColumn = n;
			break;
		}
	}

	bool bFind;
	for(int i=0;i<nColumnCount;i++)
	{
		bFind = false;
		GetColumn(i, &column);
		
		for(int j=0;j<nMenuCount;j++)
		{
			m_Popup.GetMenuString(i, sBuffer, MF_BYPOSITION);
			bFind |= sBuffer == buffer;
		}
		if(!bFind)
		{
			nSrcColumn = i;
			break;
		}
	}

	SwapColumn(nSrcColumn, nDesColumn);

	return TRUE;
}

void CListCtrlX::OnColumnClick(NMHDR* pNMHDR, LRESULT* pResult)
{
	NM_LISTVIEW*  pNMListView  =  (NM_LISTVIEW*)pNMHDR;
	LVCOLUMN column;
	column.mask = LVCF_TEXT;

	m_Popup.DestroyMenu();

	VERIFY(m_Popup.CreatePopupMenu());

	int  nColumnCount = GetHeaderCtrl()->GetItemCount();
	UINT nCtrlID = BEGIN_CTRL_ID;
	for(int i=0;i<nColumnCount;i++)
	{
		if(i == pNMListView->iSubItem) continue;
		WCHAR buffer[50];
		column.pszText = buffer;
		column.cchTextMax = 50;
		VERIFY(GetColumn(i, &column));
		m_Popup.AppendMenu(MF_STRING, nCtrlID++ , buffer);
	}

	POINT oPoint = {0,0};
	//if the os did not support the GetCursorPos API then use the default value of oPoint 0,0
	//we can change the default point on initialize oPoint
	GetCursorPos( &oPoint);
	m_Popup.TrackPopupMenu(TPM_LEFTALIGN | TPM_BOTTOMALIGN, oPoint.x, oPoint.y, this);
}

void CListCtrlX::SwapColumn(int nSrc, int nDes)
{
	ASSERT(nSrc >= 0 && nDes >=0 && nSrc != nDes);

	WCHAR buffer[256];
	int nColumnCount;
	int nItemCount;

	nColumnCount = GetHeaderCtrl()->GetItemCount();
	nItemCount   = GetItemCount();



	WCHAR srcBuffer[50];
	WCHAR desBuffer[50];
	LVCOLUMN columnSrc;
	LVCOLUMN columnDes;
	columnSrc.mask = LVCF_TEXT;
	columnSrc.cchTextMax = 50;
	columnSrc.pszText = srcBuffer;
	columnDes.mask = LVCF_TEXT;
	columnDes.cchTextMax = 50;
	columnDes.pszText = desBuffer;

	VERIFY(GetColumn(nSrc, &columnSrc));
	VERIFY(GetColumn(nDes, &columnDes));

	SetColumn(nSrc, &columnDes);
	SetColumn(nDes, &columnSrc);

	for(int i=0;i<nItemCount;i++)
	{
		InsertItem(nItemCount + i, NULL);
		for(int j=0;j<nColumnCount;j++)
		{
			GetItemText(i, j, buffer, 256);
			if(j == nSrc)
			{
				GetItemText(i, nDes, buffer, 256);
			}
			if(j == nDes)
			{
				GetItemText(i, nSrc, buffer, 256);
			}
			
			SetItemText(nItemCount + i, j, buffer);
		}
	}
	for(int in=0;in<nItemCount;in++)
	{
		DeleteItem(0);
	}
}