339 lines
13 KiB
C++
339 lines
13 KiB
C++
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/**********************************************************************/
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/** Microsoft Windows NT **/
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/** Copyright(c) Microsoft Corp., 1991 **/
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/**********************************************************************/
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/*
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getfname.hxx
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Header file for GET_FNAME_BASE_DLG class.
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The class hierarchy is the following:
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BASE
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GET_FNAME_BASE_DLG
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/ \
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GET_OPEN_FILENAME_DLG GET_SAVE_FILENAME_DLG
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COMMON_DLG - provide GetError methods
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GET_FNAME_BASE_DLG - provide methods to set up the OPENFILENAME
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data structure
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GET_OPEN_FILENAME_DLG - call GetOpenFileName API
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GET_SAVE_FILENAME_DLG - call GetSaveFileName API
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FILE HISTORY:
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terryk 03-Dec-1991 Created
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terryk 06-Jan-1992 Code review changed
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chuckc 08-Aug-1992 fixed for Unicode (commdlg now Unicode)
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*/
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#ifndef _GETFNAME_HXX_
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#define _GETFNAME_HXX_
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#include <commdlg.h>
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#include <dlgs.h> // for cmb1 ( Type Combo CID )
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// for comdlg32.dll
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typedef BOOL (*PF_GetOpenFileNameA) (LPOPENFILENAMEA);
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typedef BOOL (*PF_GetOpenFileNameW) (LPOPENFILENAMEW);
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typedef BOOL (*PF_GetSaveFileNameA) (LPOPENFILENAMEA);
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typedef BOOL (*PF_GetSaveFileNameW) (LPOPENFILENAMEW);
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typedef DWORD (*PF_ExtendedError) (VOID);
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#ifdef UNICODE
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#define PF_GetOpenFileName PF_GetOpenFileNameW
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#define PF_GetSaveFileName PF_GetSaveFileNameW
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#define GETOPENFILENAME_NAME "GetOpenFileNameW"
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#define GETSAVEFILENAME_NAME "GetSaveFileNameW"
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#else
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#define PF_GetOpenFileName PF_GetOpenFileNameA
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#define PF_GetSaveFileName PF_GetSaveFileNameA
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#define GETOPENFILENAME_NAME "GetOpenFileNameA"
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#define GETSAVEFILENAME_NAME "GetSaveFileNameA"
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#endif
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#define EXTENDEDERROR_NAME "CommDlgExtendedError"
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#define COMDLG32_DLL_NAME SZ("COMDLG32.DLL")
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/* Turn on/off the FIELD on VAR depended on the FLAG */
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#define SET_FLAG( VAR, FLAG, FIELD ) \
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VAR = (( FLAG ) ? VAR | FIELD : VAR & ~( FIELD ))
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/*************************************************************************
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NAME: GET_FNAME_BASE_DLG
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SYNOPSIS: Base class for GET_OPEN_FILENAME_DLG and
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GET_SAVE_FILENAME_DLG.
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It provides a set of functions for the callers to set up
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the OPENFILENAME data structure.
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INTERFACE:
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GET_FNAME_BASE_DLG() - constructor
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SetFilter() - set the dialog filter strings. It must
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follows this format:
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{ "Write Files(*.TXT)","*.txt",
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"Word Files(*.TXT)","*.doc;*.txt",
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"" }
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SetCustomFIlter() - custom filter string list. It must
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follow the same format as in SetFilter function.
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SetInitialDir() - set the initial directory
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SetText() - set the dialog box title
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SetMultiSelect() - allow multiple selection
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SetCreatePrompt() - if file does not exist, it will
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popup a create prompt.
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SetFileMustExist() - Display a warning message if the
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file does not exist.
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SetDisplayReadOnlyBox() - display the read only box and
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let the user check the check box.
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SetNoChangeDir() - no change directory after dismiss the
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dialog box.
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SetPathMustExist() - display a warning message if the
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path does not exist.
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SetShowHelpButton() - display the help button
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SetFileExtension() - Set the default extension. The
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GetOpenFileName and GetSaveFileName functions append
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this extension to the filename if the user fails to
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enter an extension. This string may be any length
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but only the first three characters are appended.
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The string should not contain a period ".". If this
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member is NULL and the user fails to enter an
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extension, no extension is appended.
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SetHookProc() - specifies the hooked call back function
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and set the enable hook flag in the OPENFILENAME data
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structure.
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CheckReadOnlyBox() - set the check box in the read only
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box.
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QueryFilterIndex() - Specifies an index into the buffer
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pointed to by the lpstrFilter member. The system
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uses the index value to obtain a pair of strings to
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use as the initial filter description and filter
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pattern for the dialog box. The first pair of
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strings has an index value of 1. When the user
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dismisses the dialog box, the system copies the
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index of the selected filter strings into his
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location. If the nFilterIndex member is 0, the
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custom filter will be used. If the nFilterIndex
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member is 0 and the Custom filter is NULL, the
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system uses the first filter in the buffer
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identified by the Filter member. If all three
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members are 0 or NULL, the system does not use any
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filters and does not show any files in the file list
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control of the dialog box.
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QueryFilename() - return the user selected filename.
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QueryFileTitle() - return the user selected file title (
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filename without drive and path information. )
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IsCheckReadOnlyBox() - return TRUE if the read only box
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is checked.
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QueryFileOffset() -specifies a zero-based offset from
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the beginning of the pathname to the filename in the
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string at which filename points. For example, if
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filename points to the following strings,
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"c:\dir1\dir2\file.ext", this member will contain
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the value 13.
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QueryFileExtensionOffset() - specifies a zero base
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offset from the beginning of the pathname to the
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filename extension in the string at which filename
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points. For example, if filename points to the
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following string, "c:\dir1\dir2\file.ext", this
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member will contain the value 18. If the user did
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not enter an extension and the default extension is
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NULL, this member specifies an offset to the NULL
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terminator. If the user entered "." as the last
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character in the filename, this member will specify
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0.
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PARENT: BASE
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USES: OPENFILENAME, BUFFER
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NOTES:
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It is the parent class of GET_OPEN_FILENAME_DLG and
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GET_SAVE_FILENAME_DLG.
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(beng, 31 jul 92) Terry wrote this class so that you could
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specify an alternate template name. Since that code was never
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used and never tested, and since it makes correct dllization
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more difficult, I've disabled it (and removed the option from
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all ctors).
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HISTORY:
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terryk 04-Dec-1991 Created
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beng 30-Mar-1992 CHAR/TCHAR mapping
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beng 31-Jul-1992 Hacked out template arg
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**************************************************************************/
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DLL_CLASS GET_FNAME_BASE_DLG : public BASE
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{
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private:
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HINSTANCE _hComdlg32Dll;
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PF_GetOpenFileName _pfGetOpenFileName; // for load dll.
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PF_GetSaveFileName _pfGetSaveFileName;
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PF_ExtendedError _pfExtendedError;
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BUFFER _bufFilename; // buffer for receiving the filename
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BUFFER _bufFilenameTitle; // buffer for receiving the file title (
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// filename without the path and drive
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// information )
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BUFFER _bufFilter;
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BUFFER _bufCustomFilter;
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NLS_STR _nlsHelpFile;
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ULONG _ulHelpContext;
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BOOL _fHelpActive;
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APIERR SetStringField(TCHAR **ppszDest, const NLS_STR & nlsArg);
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protected:
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OPENFILENAME _ofn; // Open Filename data structure
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BOOL _fInitOfn; // mark whether init'd
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TCHAR _szFileExt[MAXPATHLEN+1]; // Place to store the file extension
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VOID SetEnableHook( BOOL fEnableHook = TRUE )
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{ SET_FLAG( _ofn.Flags, fEnableHook, OFN_ENABLEHOOK ); }
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#if 0
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VOID SetEnableTemplate( BOOL fEnableTemplate = TRUE )
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{ SET_FLAG( _ofn.Flags, fEnableTemplate, OFN_ENABLETEMPLATEHANDLE ); }
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#endif
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VOID InitialOFN();
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APIERR SetBuffer( BUFFER * pBuf, STRLIST & strFilter );
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GET_FNAME_BASE_DLG( OWNER_WINDOW *pow,
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const TCHAR *pszHelpFile = NULL,
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ULONG ulHelpContext = 0 );
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~GET_FNAME_BASE_DLG();
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OPENFILENAME *QueryOFN()
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{ return &_ofn; }
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APIERR QueryErrorCode() const;
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public:
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PF_GetOpenFileName pfGetOpenFileName () const
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{ return _pfGetOpenFileName; }
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PF_GetSaveFileName pfGetSaveFileName () const
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{ return _pfGetSaveFileName; }
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PF_ExtendedError pfExtendedError () const
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{ return _pfExtendedError;}
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APIERR SetFilter( STRLIST & slFilter, DWORD nFilterIndex = 0 );
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APIERR SetCustomFilter( STRLIST & slFilter, DWORD nFilterIndex = 0 );
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APIERR SetInitialDir( const NLS_STR &nlsDir );
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APIERR SetText( const NLS_STR &nlsText );
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APIERR SetFileExtension( const NLS_STR & nlsExt );
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VOID SetMultiSelect( BOOL fMultiSelect = TRUE )
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{ SET_FLAG( _ofn.Flags, fMultiSelect, OFN_ALLOWMULTISELECT ); }
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VOID SetCreatePrompt( BOOL fCreatePrompt = TRUE )
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{ SET_FLAG( _ofn.Flags, fCreatePrompt, OFN_CREATEPROMPT ); }
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VOID SetFileMustExist( BOOL fMustExist = TRUE )
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{ SET_FLAG( _ofn.Flags, fMustExist, OFN_FILEMUSTEXIST ); }
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VOID SetDisplayReadOnlyBox( BOOL fDisplay = FALSE )
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{ SET_FLAG( _ofn.Flags, !fDisplay, OFN_HIDEREADONLY ); }
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VOID SetNoChangeDir( BOOL fNoChange =TRUE )
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{ SET_FLAG( _ofn.Flags, fNoChange, OFN_NOCHANGEDIR ); }
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VOID SetPathMustExist( BOOL fMustExist = TRUE )
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{ SET_FLAG( _ofn.Flags, fMustExist, OFN_PATHMUSTEXIST ); }
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VOID SetShowHelpButton( BOOL fHelp = TRUE )
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{ SET_FLAG( _ofn.Flags, fHelp, OFN_SHOWHELP ); }
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VOID SetHookProc( MFARPROC lpfnHook );
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VOID CheckReadOnlyBox( BOOL fCheck = TRUE )
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{ SET_FLAG( _ofn.Flags, fCheck, OFN_READONLY ); }
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DWORD QueryFilterIndex() const
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{ return _ofn.nFilterIndex; }
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APIERR QueryFilename( NLS_STR *pnlsFilename ) const;
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APIERR QueryFileTitle( NLS_STR *pnlsFileTitle ) const;
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BOOL IsCheckReadOnlyBox() const
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{ return ( _ofn.Flags | OFN_READONLY ) != 0 ; }
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WORD QueryFileOffset() const
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{ return _ofn.nFileOffset; }
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WORD QueryFileExtensionOffset() const
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{ return _ofn.nFileExtension; }
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NLS_STR *QueryHelpFile( VOID )
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{ return &_nlsHelpFile; }
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ULONG QueryHelpContext( VOID )
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{ return _ulHelpContext; }
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VOID SetHelpActive( BOOL fActive )
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{ _fHelpActive = fActive; }
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BOOL IsHelpActive( VOID )
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{ return _fHelpActive; }
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virtual APIERR Process( BOOL *pfRetVal ) = 0;
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VOID OnHelp( HWND hwnd );
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};
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/*************************************************************************
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NAME: GET_OPEN_FILENAME_DLG
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SYNOPSIS: call windows' GetOpenFileName API and get the filename.
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INTERFACE:
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GET_OPEN_FILENAME_DLG() - constructor
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Process() - start the dialog box
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PARENT: GET_FNAME_BASE_DLG
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HISTORY:
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terryk 04-Dec-1991 Created
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beng 31-Jul-1992 Hacked out template arg
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**************************************************************************/
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DLL_CLASS GET_OPEN_FILENAME_DLG: public GET_FNAME_BASE_DLG
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{
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public:
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GET_OPEN_FILENAME_DLG( OWNER_WINDOW *pow,
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const TCHAR *pszHelpFile = NULL,
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ULONG ulHelpContext = 0 );
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virtual APIERR Process( BOOL *pfRetVal = NULL );
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};
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/*************************************************************************
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NAME: GET_SAVE_FILENAME_DLG
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SYNOPSIS: call windows' API GetSaveFileName and return the user
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selected filename.
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INTERFACE:
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GET_SAVE_FILENAME_DLG() - constructor
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Process() - start the dialog box
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SetOverWritePrompt() - cause the dialog box to generate
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a message box if the selected file already exists.
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The user must confirm whether to overwrite the
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file.
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PARENT: GET_FNAME_BASE_DLG
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HISTORY:
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terryk 04-Dec-1991 Created
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beng 31-Jul-1992 Hacked out template arg
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**************************************************************************/
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DLL_CLASS GET_SAVE_FILENAME_DLG: public GET_FNAME_BASE_DLG
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{
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public:
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GET_SAVE_FILENAME_DLG( OWNER_WINDOW *pow,
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const TCHAR *pszHelpFile = NULL,
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ULONG ulHelpContext = 0 );
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virtual APIERR Process( BOOL *pfRetVal = NULL );
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VOID SetOverWritePrompt( BOOL fOverWrite = TRUE )
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{ SET_FLAG( _ofn.Flags, fOverWrite, OFN_OVERWRITEPROMPT ); }
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};
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#endif // _GETFNAME_HXX_
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