支持选择文件和目录（可多选）的文件对话框CSelectDialog
MFC自带的CFileDialog不支持选择目录，而且多选文件配置也不方便。有一些实现比较好的目录选择对话框，但是既可以支持选择文件，又可以支持选择目录的非常难得。非常感谢Hojjat Bohlooli（[email protected]）的工作，给我们提供了一个非常方便的文件选择对话框CSelectDialog。国人自己也能有些拿得出手的东西，而不是藏藏捏捏的。
其使用也是非常简单的。
CSelectDialog ofd(TRUE, _T("*.*"), NULL, OFN_HIDEREADONLY | OFN_ALLOWMULTISELECT, _T("All files and folders(*.*)|*.*||") );
if( ofd.DoModal() != IDOK )
return;
for( int i=0; i详细的实现如下：
#pragma once
#include // for (MULTI)FILEOPENORD
// CSelectDialog
class CSelectDialog : public CFileDialog
{
DECLARE_DYNAMIC(CSelectDialog)
public:
CSelectDialog(BOOL bOpenFileDialog, // TRUE for FileOpen, FALSE for FileSaveAs
LPCTSTR lpszDefExt = NULL,
LPCTSTR lpszFileName = NULL,
DWORD dwFlags = OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT |
OFN_EXPLORER & (~OFN_SHOWHELP),
LPCTSTR lpszFilter = NULL,
CWnd* pParentWnd = NULL);
virtual ~CSelectDialog();
protected:
virtual void OnInitDone();
virtual void OnFolderChange();
virtual BOOL OnFileNameOK();
static LRESULT CALLBACK WindowProcNew(HWND hwnd,UINT message, WPARAM wParam, LPARAM lParam);
DECLARE_MESSAGE_MAP()
public:
static CString m_strCurrendDirectory;
static CStringArray m_SelectedItemList; /*this list includes files and folders
are selected by user. */
static WNDPROC m_wndProc;
}; #include "stdafx.h"
#include "SelectDialog.h"
#pragma warning( push )
#pragma warning( disable : 4311 4312 )
// CSelectDialog
CString CSelectDialog::m_strCurrendDirectory;
CStringArray CSelectDialog::m_SelectedItemList;
WNDPROC CSelectDialog::m_wndProc = NULL;
IMPLEMENT_DYNAMIC(CSelectDialog, CFileDialog)
CSelectDialog::CSelectDialog(BOOL bOpenFileDialog,
LPCTSTR lpszDefExt,
LPCTSTR lpszFileName,
DWORD dwFlags,
LPCTSTR lpszFilter,
CWnd* pParentWnd)
:CFileDialog(
bOpenFileDialog,
lpszDefExt,
lpszFileName,
dwFlags | OFN_EXPLORER | OFN_HIDEREADONLY & (~OFN_SHOWHELP),
lpszFilter,
pParentWnd)
{
dwFlags |= (OFN_EXPLORER | OFN_HIDEREADONLY & (~OFN_SHOWHELP));
};
CSelectDialog::~CSelectDialog()
{
};
BEGIN_MESSAGE_MAP(CSelectDialog, CFileDialog)
END_MESSAGE_MAP()
// CSelectDialog message handlers
BOOL CSelectDialog::OnFileNameOK()
{
if (CFileDialog* pDlg = (CFileDialog*)CWnd::FromHandle(GetParent()->m_hWnd))
{
CWnd* pWnd = pDlg->GetDlgItem(lst2); //getting list
if (pWnd == NULL)
return FALSE;
m_SelectedItemList.RemoveAll(); // emptying list
CListCtrl* wndLst1 = (CListCtrl*)(pWnd->GetDlgItem(1));
int nSelected = wndLst1->GetSelectedCount();
if (!nSelected) // nothing selected -- don't retrieve list
return FALSE;
CString strItemText, strDirectory = m_strCurrendDirectory;
if (strDirectory.Right(1) != _T("\\"))
strDirectory += _T("\\");
CString fileslist = _T("");
pDlg->SendMessage(CDM_GETSPEC, (WPARAM)MAX_PATH,
(LPARAM)fileslist.GetBuffer(MAX_PATH));
fileslist.ReleaseBuffer();
strItemText = strDirectory + fileslist;
if(nSelected == 1 && fileslist != _T(""))
{
m_SelectedItemList.Add(strItemText);
return CFileDialog::OnFileNameOK();
}
}
::MessageBeep( MB_ICONQUESTION );
return 1; //don't let the dialog to close
};
void CSelectDialog::OnFolderChange()
{
m_strCurrendDirectory = GetFolderPath();
CFileDialog::OnFolderChange();
};
void CSelectDialog::OnInitDone()
{
m_strCurrendDirectory = GetFolderPath();
CWnd* pFD = GetParent();
HideControl(edt1);
HideControl(cmb1);
HideControl(stc2);
//HideControl(cmb13);
//HideControl(stc3);
CRect rectCancel; pFD->GetDlgItem(IDCANCEL)->GetWindowRect(&rectCancel);
pFD->ScreenToClient(&rectCancel);
CRect rectOK; pFD->GetDlgItem(IDOK)->GetWindowRect(&rectOK);
pFD->ScreenToClient(&rectOK);
pFD->GetDlgItem(IDOK)->SetWindowPos(0,rectCancel.left - rectOK.Width() - 5, rectCancel.top, 0,0, SWP_NOZORDER | SWP_NOSIZE);
CRect rectList2; pFD->GetDlgItem(lst1)->GetWindowRect(&rectList2);
pFD->ScreenToClient(&rectList2);
pFD->GetDlgItem(lst1)->SetWindowPos(0,0,0,rectList2.Width(), abs(rectList2.top - (rectCancel.top - 5)), SWP_NOMOVE | SWP_NOZORDER);
CRect rectStatic;pFD->GetDlgItem(stc3)->GetWindowRect(&rectStatic);
pFD->ScreenToClient(&rectStatic);
pFD->GetDlgItem(stc3)->SetWindowPos(0,rectCancel.left - 375,rectCancel.top + 5, rectStatic.Width(), rectStatic.Height(), SWP_NOZORDER);
CRect rectEdit1;pFD->GetDlgItem(cmb13)->GetWindowRect(&rectEdit1);
pFD->ScreenToClient(&rectEdit1);
pFD->GetDlgItem(cmb13)->SetWindowPos(0,rectCancel.left - 320,rectCancel.top, rectEdit1.Width() - 15, rectEdit1.Height(), SWP_NOZORDER);
SetControlText(stc3, _T("Item name:"));
SetControlText(IDOK, _T("Select"));
m_wndProc = (WNDPROC)::SetWindowLong(pFD->m_hWnd, GWL_WNDPROC, (long)WindowProcNew);
pFD->CenterWindow();
};
LRESULT CALLBACK CSelectDialog::WindowProcNew(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
if (message == WM_COMMAND)
{
if (HIWORD(wParam) == BN_CLICKED)
{
if (LOWORD(wParam) == IDOK)
{
if (CFileDialog* pDlg = (CFileDialog*)CWnd::FromHandle(hwnd))
{
m_SelectedItemList.RemoveAll(); // emptying list
CWnd* pWnd = pDlg->GetDlgItem(lst2); //getting list
if (pWnd == NULL)
return FALSE;
CListCtrl* wndLst1 = (CListCtrl*)(pWnd->GetDlgItem(1));
int nSelected = wndLst1->GetSelectedCount();
if (!nSelected) // nothing selected -- don't retrieve list
return FALSE;
CString strItemText, strDirectory = m_strCurrendDirectory;
if (strDirectory.Right(1) != _T("\\"))
strDirectory += _T("\\");
int nItem = wndLst1->GetNextItem(-1,LVNI_SELECTED);
CString fileslist = _T("");
pDlg->SendMessage(CDM_GETSPEC, (WPARAM)MAX_PATH,
(LPARAM)fileslist.GetBuffer(MAX_PATH));
fileslist.ReleaseBuffer();
// Add directory names to list
while((nSelected--) > 0)
{
strItemText = wndLst1->GetItemText(nItem,0);
strItemText = strDirectory + strItemText;
DWORD attr = GetFileAttributes(strItemText);
if((attr != 0xFFFFFFFF) && (attr & FILE_ATTRIBUTE_DIRECTORY))
m_SelectedItemList.Add(strItemText);
nItem = wndLst1->GetNextItem(nItem, LVNI_SELECTED);
}
// Add FILE names to list
strItemText = _T("");
nSelected = wndLst1->GetSelectedCount();
if(nSelected > m_SelectedItemList.GetCount())
{
int MoreThanOnFile = fileslist.Find(_T("\""));
if(MoreThanOnFile != -1)
{
for(int i=0; iEndDialog(IDOK);
return NULL;
} // if IDOK
}
} // if BN_CLICKED
}// if WM_COMMAND
return CallWindowProc(m_wndProc, hwnd, message, wParam, lParam);
}
#pragma warning( pop )