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// filedlg.cpp : header file
//
// Copyright (C) 1992-1999 Microsoft Corporation
// All rights reserved.
//
// This file is to support an extended file save dialog with a
// "Use this format by default" checkbox
#include "stdafx.h"
#include "wordpad.h"
#include "filedlg.h"
#include "ddxm.h"
#include "helpids.h"
#include <dlgs.h>
#ifdef _DEBUG
#undef THIS_FILE
static char BASED_CODE THIS_FILE[] = __FILE__;#endif
DWORD const CWordpadFileDialog::m_nHelpIDs[] ={ IDC_DEFAULT_FORMAT, IDH_WORDPAD_DEFAULT_FORMAT, 0, 0};
int CWordpadFileDialog::m_defaultDoctype = RD_DEFAULT;
BEGIN_MESSAGE_MAP(CWordpadFileDialog, CFileDialog) //{{AFX_MSG_MAP(CWordpadFileDialog)
ON_BN_CLICKED(IDC_DEFAULT_FORMAT, OnDefaultFormatClicked) ON_MESSAGE(WM_HELP, OnHelp) ON_MESSAGE(WM_CONTEXTMENU, OnHelpContextMenu) //}}AFX_MSG_MAP
END_MESSAGE_MAP()
IMPLEMENT_DYNAMIC(CWordpadFileDialog, CFileDialog)
CWordpadFileDialog::CWordpadFileDialog(BOOL bOpenFileDialog) : CFileDialog(bOpenFileDialog){ m_ofn.Flags |= OFN_ENABLESIZING;
if (!m_bOpenFileDialog) { m_ofn.Flags |= OFN_ENABLETEMPLATE; m_ofn.lpTemplateName = TEXT("DefaultFormatDialog"); }
m_doctype = GetDefaultFileType();}
void CWordpadFileDialog::OnDefaultFormatClicked(){ if (m_bOpenFileDialog) return;
m_doctype = GetTypeFromIndex( m_openfilename.nFilterIndex - 1, m_bOpenFileDialog);
GetDlgItem(IDC_DEFAULT_FORMAT)->EnableWindow(FALSE);
// Move the focus to the filename combobox.
GetParent()->GetDlgItem(cmb13)->SetFocus();}
BOOL CWordpadFileDialog::OnFileNameOK(){ BOOL ret = CFileDialog::OnFileNameOK();
if (!m_bOpenFileDialog) { // returns 0 if ok, 1 if not ok...
if (0 == ret) SetDefaultFileType(m_doctype); }
return ret;}
void CWordpadFileDialog::OnTypeChange(){ CFileDialog::OnTypeChange();
if (m_bOpenFileDialog) return;
int type = GetTypeFromIndex( m_openfilename.nFilterIndex - 1, m_bOpenFileDialog);
CWnd *checkbox = GetDlgItem(IDC_DEFAULT_FORMAT);
checkbox->SendMessage( BM_SETCHECK, (type == m_doctype) ? BST_CHECKED : BST_UNCHECKED, 0);
checkbox->EnableWindow(!(type == m_doctype));
//
// Change the extension of the filename presented to the user to match
// the new type
//
// If the user has "Hide extensions of known types" set all this is moot
SHELLFLAGSTATE flags; SHGetSettings(&flags, SSF_SHOWEXTENSIONS); if (!flags.fShowExtensions) return;
CString filespec;
CommDlg_OpenSave_GetSpec( GetParent()->GetSafeHwnd(), filespec.GetBufferSetLength(MAX_PATH), MAX_PATH); filespec.ReleaseBuffer();
if (filespec.IsEmpty()) return;
CString extension = GetExtFromType(type); int extstart = filespec.ReverseFind(TEXT('.'));
if (-1 == extstart) extstart = filespec.GetLength();
if (filespec.Mid(extstart) == extension) return;
filespec = filespec.Mid(0, extstart) + extension;
CommDlg_OpenSave_SetControlText( GetParent()->GetSafeHwnd(), edt1, (LPCTSTR) filespec);}
void CWordpadFileDialog::OnInitDone(){ CFileDialog::OnInitDone();
if (m_bOpenFileDialog) return;
OnTypeChange();}
LONG CWordpadFileDialog::OnHelp(WPARAM, LPARAM lParam){ ::WinHelp( (HWND)((LPHELPINFO)lParam)->hItemHandle, AfxGetApp()->m_pszHelpFilePath, HELP_WM_HELP, (DWORD_PTR)GetHelpIDs()); return 0;}
LONG CWordpadFileDialog::OnHelpContextMenu(WPARAM wParam, LPARAM){ ::WinHelp((HWND)wParam, AfxGetApp()->m_pszHelpFilePath, HELP_CONTEXTMENU, (DWORD_PTR)GetHelpIDs()); return 0;}
//
// MFC assumes that when a common dialog is created, the first message that
// gets sent to it's common message handing procedure will be to that window.
// This isn't always true and although it attempts to handle this doesn't get
// it right every time. Fix it, at least for file dialogs, by making a
// private message procedure that does the necessary initialization and then
// calls the original
//
UINT_PTR CALLBACK CWordpadFileDialog::FileDialogHookProc( HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam){ CWordpadFileDialog *_this;
if (WM_INITDIALOG == message) { _this = (CWordpadFileDialog *) ((OPENFILENAME *) lParam)->lCustData; _this->SubclassWindow(hWnd); } _this = (CWordpadFileDialog *) CWnd::FromHandlePermanent(hWnd);
if (NULL != _this) return (_this->m_original_hook)(hWnd, message, wParam, lParam); else return 0;}
INT_PTR CWordpadFileDialog::DoModal(){ ASSERT_VALID(this); ASSERT(m_ofn.Flags & OFN_ENABLEHOOK); ASSERT(m_ofn.lpfnHook != NULL); // can still be a user hook
#ifdef _MAC
ASSERT((m_ofn.Flags & OFN_ALLOWMULTISELECT) == 0);#endif
// WINBUG: This is a special case for the file open/save dialog,
// which sometimes pumps while it is coming up but before it has
// disabled the main window.
HWND hWndFocus = ::GetFocus(); BOOL bEnableParent = FALSE; m_ofn.hwndOwner = PreModal(); AfxUnhookWindowCreate(); if (m_ofn.hwndOwner != NULL && ::IsWindowEnabled(m_ofn.hwndOwner)) { bEnableParent = TRUE; ::EnableWindow(m_ofn.hwndOwner, FALSE); }
_AFX_THREAD_STATE* pThreadState = AfxGetThreadState(); ASSERT(pThreadState->m_pAlternateWndInit == NULL);
m_original_hook = m_ofn.lpfnHook; m_ofn.lpfnHook = FileDialogHookProc; m_ofn.lCustData = (LPARAM) this;
ZeroMemory(&m_openfilename, sizeof(m_openfilename)); CopyMemory(&m_openfilename, &m_ofn, sizeof(m_ofn)); m_openfilename.lStructSize = sizeof(m_openfilename);
int nResult; if (m_bOpenFileDialog) nResult = ::GetOpenFileName((OPENFILENAME*) &m_openfilename); else nResult = ::GetSaveFileName((OPENFILENAME*) &m_openfilename);
CopyMemory(&m_ofn, &m_openfilename, sizeof(m_ofn)); m_ofn.lStructSize = sizeof(m_ofn);
m_ofn.lpfnHook = m_original_hook;
if (nResult) ASSERT(pThreadState->m_pAlternateWndInit == NULL); pThreadState->m_pAlternateWndInit = NULL;
// WINBUG: Second part of special case for file open/save dialog.
if (bEnableParent) ::EnableWindow(m_ofn.hwndOwner, TRUE); if (::IsWindow(hWndFocus)) ::SetFocus(hWndFocus);
PostModal(); return nResult ? nResult : IDCANCEL;}
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