BaseFileDialog Class Reference

To provide a custom File Save / Open Dialog that goes to the correct directory etc. More...

#include <filedlgs.h>

Inheritance diagram for BaseFileDialog:

List of all members.

Public Member Functions
	BaseFileDialog (BOOL IsFileOpen, DWORD dwFlags, LPCTSTR lpszFilter=NULL, wxWindow *pParentWnd=NULL)
	~BaseFileDialog ()
	Standard destructor. Need to clean up the preview bitmap, if present.
virtual BOOL	PrepareDialog ()
	Does anything the dialogs want doing after they have been created, but before they are displayed.
virtual INT32	GetSelectedFilterIndex ()
	Allows access in a kernelly fashion to the selected filter index on the common file dialog box.
virtual INT32	SetSelectedFilterIndex (INT32 NewIndex)
	Set the desired index for the filter that is going to be selected on the Common file dialog box.
virtual BOOL	SetTitle (INT32 TitleId)
	Allows the title of the common file dialog box to be set up.
virtual BOOL	SetInitialDirectory (const String_256 &pDir)
	Sets the directory which the common file dialog box will open looking at.
virtual BOOL	SetDefaultFileName (String_256 &Name)
	Sets the name and length of the name of the default file to be used in the common file dialog box.
virtual BOOL	GetChosenFileName (PathName *pName)
	Gets the pathname of the file that was chosen by the user. It will return the vailidity of the pathname to the caller. Should be valid as the file dialog box should filter out problem pathnames.
virtual Filter *	GetSelectedExportFilter (INT32 TheSelectedFilter)
virtual void	SetSelectedExportFilter (UINT32 uiFilterID)
	Sets the selected export filter to the ID given.
virtual INT32	OpenAndGetFileName ()
	Opens the common file dialog box up, waits for the user to gives us the filename that they wish to use and either press ok or cancel.
virtual void	AppendExtension (wxString *pFilename)
	Given a filename, this function should attach the appropriate file extension to the to it. This baseclass version does nothing.
virtual BOOL	IsValidFilename ()
	Makes sure that the filename picked is actually OK. If there is another file of the same name, it checks to see if the user wants to replace it. Moved from SaveFileDialog 9/1/96.
virtual int	ShowModal ()
afx_msg void	OnPaletteChanged (CWnd *pFocusWnd)
Static Public Member Functions
static BOOL	Init ()
	Declares some preferences for the Open and Save dialogs.
static TCHAR *	BuildFilterString (BOOL GetImport, UINT32 SelectedFilterID, INT32 *SelectedFilter, CCRuntimeClass *pTypeOfFilter=CC_RUNTIME_CLASS(Filter), UINT32 Bpp=0, UINT32 BitmapCount=1)
	Build a filter string suitable for use by Windows' common dialog "File open" or "File save" boxes. This is mainly for the import and export dialog boxes. Used to be in OilFiltrs.cpp until moved to BaseFileDialog 5/1/96.
Static Public Attributes
static String_256	DefaultSaveFilePath = TEXT("")
static String_256	DefaultOpenFilePath = TEXT("")
static INT32	SelectedFilter = FILTERID_VECTOR
static BOOL	MakeBakFiles = FALSE
static BOOL	ShowPreviewBitmap = TRUE
static BOOL	ThumbNailMode = FALSE
static BaseFileDialog *	m_pCurrentFileDialog = NULL
Protected Types
enum	{ TITLE_SIZE = 128 }
Protected Member Functions
virtual UINT32	OnHookMsg (wxWindow *hwnd, UINT32 nMsg, WPARAM wParam, LPARAM lParam)
	Called by the common dialog library when it has a message to process. This function checks if the help button has been clicked, and runs the help engine if it has.
virtual UINT32	OnFileTypeChange ()
	Should be called when the user has selected a new file type from the "Files of type" combo box. We might need to do things like fix the file extension for the currently selected save/export filter. Baseclass version.
virtual BOOL	ExplorerInitDialog (wxWindow *hDlg)
	Should be called when the explorer style dialog boxes need setting up. We can take this opportunity to add in any extra controls that we require. Baseclass version.
virtual BOOL	ExplorerFileHookNotify (wxWindow *hDlg, LPOFNOTIFY pofn)
	Should be called when actions happen on the explorer style dialog boxes. We can take this opportunity to handle these actions as required. Baseclass version.
	DECLARE_DYNAMIC (BaseFileDialog)
afx_msg LRESULT	OnRedrawMessage (WPARAM, LPARAM)
	Handles the Redraw control wanting to be drawn. This control is used to display the Preview bitmaps from selected files in the file list. When we get this message we will need to go and find the bitmap from the file and display it. The message is sent up by one of our cc_DialogRedraw custom controls.
afx_msg void	OnShowPreviewBitmap ()
	Handle the clicks on the buttons which offer the show preview bitmap. This is the Windows 95 UI form of the function.
afx_msg void	OnHelp ()
	Handle the clicks on the help button. This is the Windows 95 UI form of the function.
afx_msg void	OnSize (UINT32 nType, INT32 cx, INT32 cy)
afx_msg void	OnOptions ()
	Implements the options button installed for WEBSTER Base class does nowt.
virtual BOOL	HandleOptions ()
	Implements the options button installed for WEBSTER Base class does nowt.
virtual void	OnFileNameChange ()
	Should be called when the user has selected a new file in the file list. We might need to do things like remove the preview bitmap from the file and display it. Only called back if OFN_EXPLORER is set and you can only do this on Windows 95 otherwise a dialog is not popped up.
virtual BOOL	GetPreviewBitmapFromFile (PathName *pPath)
	Rips a preview bitmap from the specified file, if appropriate. The class variable pBitmapToUse will contain the bitmap or will contain NULL if no bitmap is found.
virtual BOOL	OpenFileForPreview (CCDiskFile &File, PathName *pPath)
	Sets the file up so that the preview image can be read.
virtual BOOL	ReadRIFFPreview (CCDiskFile &File, PathName *pPath)
	Reads in the RIFF chunk containing the preview.
virtual BOOL	ReadNativePreview (CCDiskFile &File, PathName *pPath)
	Reads in the native file chunk containing the preview.
virtual BOOL	ReadBitmapPreview (CCDiskFile &File, PathName *pPath, UINT32 FilterID)
	Creates a preview image from the contents of a bitmap file.
virtual void	OnFolderChange ()
	Read preference and apply thumbnail mode if required.
virtual BOOL	OnNotify (WPARAM wParam, LPARAM lParam, LRESULT *pResult)
	Used to copy the OPENFILNAMEEX values into the standard OPENFILENAME member variable. This is to support XP-style common file dialogs - the places bar on the left hand side of the dialog.
Static Protected Member Functions
static UINT32 CALLBACK	HookProc (wxWindow *hwnd, UINT32 nMsg, WPARAM wParam, LPARAM lParam)
Protected Attributes
TCHAR	Title [TITLE_SIZE]
BOOL	ExplorerInited
OPENFILENAMEEX	m_ofnEx
KernelBitmap *	pBitmapToUse
BOOL	WantPreviewBitmap
Private Attributes
wxString	m_previousPathName

---

Detailed Description

To provide a custom File Save / Open Dialog that goes to the correct directory etc.

Author:

Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com>

Date:

25/1/95

Definition at line 145 of file filedlgs.h.

---

Member Enumeration Documentation

anonymous enum [protected]

Enumerator: TITLE_SIZE  Definition at line 219 of file filedlgs.h. { TITLE_SIZE = 128 };

---

Constructor & Destructor Documentation

BaseFileDialog::BaseFileDialog (  BOOL  IsFileOpen, DWORD  dwFlags, LPCTSTR  lpszFilter = NULL, wxWindow *  pParentWnd = NULL )

Definition at line 281 of file filedlgs.cpp. : wxFileDialog( (pParentWnd != NULL) ? pParentWnd : pParentWnd = GetMainFrame(), _T("Choose a file"), _T(""), _T(""), lpszFilter, dwFlags | ( IsFileOpen ? wxOPEN : wxSAVE) ) // IsFileOpen, NULL, NULL, dwFlags | ((CCamApp::IsNewWindowsUI()) ? OFN_EXPLORER : OFN_SHOWHELP) | OFN_ENABLEHOOK, // lpszFilter, ) { PORTNOTE("other", "Removed MFC junk" ) #if !defined(EXCLUDE_FROM_XARALX) // Set the address of the message hook procedure. m_ofn.lpfnHook = (LPOFNHOOKPROC) HookProc; // Unfortunately, MFC doesn't set the hwndOwner member of m_ofn . . . m_ofn.hwndOwner = (pParentWnd != NULL) ? pParentWnd->m_hWnd : NULL; // We haven't called the explorer style init function by default ExplorerInited = FALSE; #endif // Remember a pointer to this file dialog. m_pCurrentFileDialog = this; // Set the preview bitmap to be NULL pBitmapToUse = NULL; // Added by Craig Hamilton 20/9/00. m_previousPathName = _T(""); // End added. }

BaseFileDialog::~BaseFileDialog (   )

Standard destructor. Need to clean up the preview bitmap, if present. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 18/7/96 Returns: - Definition at line 322 of file filedlgs.cpp. { // Must clean up our preview bitmap, if present if (pBitmapToUse != NULL) { delete pBitmapToUse; pBitmapToUse = NULL; } m_pCurrentFileDialog = NULL; }

---

Member Function Documentation

void BaseFileDialog::AppendExtension (  wxString *  pFilename  )  [virtual]

Given a filename, this function should attach the appropriate file extension to the to it. This baseclass version does nothing. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 9/1/96 Parameters: pFilename  - the filename to append an extension to [INPUTS] pFilename  - the input filename with the .art extension on the end (if needed) [OUTPUTS] Reimplemented in SaveFileDialog, and ExportFileDialog. Definition at line 1035 of file filedlgs.cpp. { // baseclass version so do nothing }

TCHAR * BaseFileDialog::BuildFilterString (  BOOL  GetImport, UINT32  SelectedFilterID, INT32 *  SelectedFilter, CCRuntimeClass *  pTypeOfFilter = CC_RUNTIME_CLASS(Filter), UINT32  Bpp = 0, UINT32  BitmapCount = 1 )  [static]

Build a filter string suitable for use by Windows' common dialog "File open" or "File save" boxes. This is mainly for the import and export dialog boxes. Used to be in OilFiltrs.cpp until moved to BaseFileDialog 5/1/96. Author: Tim_Browse (Xara Group Ltd) <camelotdev@xara.com> Date: 29/03/94 Parameters: GetImport  - TRUE => Build list of Import filters [INPUTS] FALSE => Build list of Export filters SelectedFilterID - the ID of the last filter that was used by the calling Operation. pTypeOfFilter - optional type of filter to use. Defaults to GenericFilter for all. Bpp - if only bitmap filters required then check this bpp against the ones that the filter supports SelectedFilter  - the position in the list box of the selected filter [OUTPUTS] identified by SelectedFilterID, or unchanged if it wasn't found. Returns: The filter string. Errors: Out of memory See also: MetaFileFilter; OpMenuExport; OpMenuImport; Definition at line 563 of file filedlgs.cpp. { // Find out how much space is needed UINT32 FilterSize = 0; // Used to load in the resource strings for the filter extension descriptions. String_256 FilterExtensions; Filter *pFilter = Filter::GetFirst(); BOOL FilterCanCope = TRUE; while (pFilter != NULL) { // If we are filtering for bitmap filters then check that if a Bpp has been // specified that the bitmap filter can cope with that. FilterFlags Flags = pFilter->GetFlags(); if (pTypeOfFilter==CC_RUNTIME_CLASS(BitmapFilter) && pFilter->IsKindOf(pTypeOfFilter)) { BaseBitmapFilter* pBitmapFilter = (BaseBitmapFilter*)pFilter; if (pBitmapFilter->IsThisBppOk(Bpp)) { // Webster - RanbirR - 25\02\97 // If this is a single bitmap and the the Bpp is 24, // then we do not want to dipsplay *.gif in the export filter List. // Only allow the format for Animated GIF's (even though they do not // support 24 colour bitmaps.) We later convert to an 8 Bpp. // This fixes an animated GIF export bug in Camelot. // At present we error if the first bitmap in our animated gif is 24Bpp. if (pFilter->FilterID == FILTERID_TI_GIF && Bpp == 24 && BitmapCount == 1) FilterCanCope = FALSE; else FilterCanCope = TRUE; } else FilterCanCope = FALSE; if (BitmapCount>1 && !Flags.CanExportMultipleImages) FilterCanCope = FALSE; } else FilterCanCope = TRUE; // little bit of a bodge here to stop the CamelotEPSFilter from appearing in the // import list - you can't hide it from just one list. It must be availiable though // to give it's nice little error message. Other instances of this below. if ( ( ( GetImport && Flags.CanImport && !IS_A( pFilter, CamelotEPSFilter ) ) || (!GetImport && Flags.CanExport)) && NULL != pFilter->pOILFilter && Flags.ShowFilter && (pFilter->IsKindOf(pTypeOfFilter)) && FilterCanCope ) { // Add the space required to put this into the filter string // (add 1 for the separating '|' character when not the first) if (FilterSize != 0) FilterSize += 1; FilterSize += camStrlen(pFilter->pOILFilter->ConstructFilterString(BitmapCount)); } // Try the next filter pFilter = Filter::GetNext(pFilter); } // If we have found no valid filters then we must set an error and return NULL // as otherwise we are in an illegal situation if (FilterSize == 0) { Error::SetError(_R(IDE_FORMATNOTSUPPORTED)); return NULL; } // Add one for the final terminator. FilterSize += 1; // Try to get this string TCHAR *FilterString = (TCHAR *) CCMalloc(FilterSize * sizeof(TCHAR)); if (FilterString==NULL) { // Error state already set by CCMalloc return NULL; } // Construct the string, and set up the position numbers for the filters. UINT32 Position = 0; FilterString[0] = 0; pFilter = Filter::GetFirst(); while (pFilter != NULL) { // If we are filtering for bitmap filters then check that if a Bpp has been // specified that the bitmap filter can cope with that. FilterFlags Flags = pFilter->GetFlags(); if (pTypeOfFilter==CC_RUNTIME_CLASS(BitmapFilter) && pFilter->IsKindOf(pTypeOfFilter)) { BaseBitmapFilter* pBitmapFilter = (BaseBitmapFilter*)pFilter; if (pBitmapFilter->IsThisBppOk(Bpp)) { // Webster - RanbirR - 25\02\97 // If this is a single bitmap and the the Bpp is 24, // then we do not want to dipsplay *.gif in the export filter List. // Only allow the format for Animated GIF's (even though they do not // support 24 colour bitmaps.) We later convert to an 8 Bpp. // This fixes an animated GIF export bug in Camelot. // At present we error if the first bitmap in our animated gif is 24Bpp. if (pFilter->FilterID == FILTERID_TI_GIF && Bpp == 24 && BitmapCount == 1) FilterCanCope = FALSE; else FilterCanCope = TRUE; } else FilterCanCope = FALSE; if (BitmapCount>1 && !Flags.CanExportMultipleImages) FilterCanCope = FALSE; } else FilterCanCope = TRUE; if( NULL != pFilter->pOILFilter ) { if ( ( ( GetImport && Flags.CanImport && !IS_A( pFilter, CamelotEPSFilter ) ) || (!GetImport && Flags.CanExport)) && Flags.ShowFilter && (pFilter->IsKindOf(pTypeOfFilter)) && FilterCanCope ) { // Add this filter into the list if (Position != 0) camStrcat(FilterString, _T("|")); camStrcat(FilterString, pFilter->pOILFilter->ConstructFilterString(BitmapCount)); pFilter->pOILFilter->Position = Position; // Is this the filter we used last? if ((*SelectedFilter == -1) && (pFilter->FilterID == SelectedFilterID)) // Yes - remember this. *SelectedFilter = Position; Position++; } else // Make sure we don't try this one later pFilter->pOILFilter->Position = -1; } // Try the next filter pFilter = Filter::GetNext(pFilter); } // All ok return FilterString; }

BaseFileDialog::DECLARE_DYNAMIC (  BaseFileDialog   )  [protected]

BOOL BaseFileDialog::ExplorerFileHookNotify (  wxWindow *  hDlg, LPOFNOTIFY  pofn )  [protected, virtual]

Should be called when actions happen on the explorer style dialog boxes. We can take this opportunity to handle these actions as required. Baseclass version. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 3/7/96 Parameters: hDlg  - wxWindow* of the dialog box. [INPUTS] pofn - pointer to notify structure Returns: TRUE if it worked, FALSE if it failed See also: BaseFileDialog::OnHookMsg; BaseFileDialog::HookProc; Definition at line 453 of file filedlgs.cpp. { return TRUE; }

BOOL BaseFileDialog::ExplorerInitDialog (  wxWindow *  hDlg  )  [protected, virtual]

Should be called when the explorer style dialog boxes need setting up. We can take this opportunity to add in any extra controls that we require. Baseclass version. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 2/7/96 Returns: TRUE if it worked, FALSE if it failed See also: BaseFileDialog::OnHookMsg; BaseFileDialog::HookProc; Reimplemented in OpenFileDialog, SaveFileDialog, SaveTemplateDialog, ImportFileDialog, ExportFileDialog, and GIFExportFileDialog. Definition at line 432 of file filedlgs.cpp. { return TRUE; }

BOOL BaseFileDialog::GetChosenFileName (  PathName *  pName  )  [virtual]

Gets the pathname of the file that was chosen by the user. It will return the vailidity of the pathname to the caller. Should be valid as the file dialog box should filter out problem pathnames. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 4/1/96 Parameters: The  pathname that the user chose. [OUTPUTS] Returns: TRUE if it worked and patname is valid, FALSE if not Definition at line 829 of file filedlgs.cpp. { TRACEUSER( "luke", _T("FileName is %s\n"), GetPath().c_str() ); pName->SetPathName( GetPath() ); return pName->IsValid(); }

BOOL BaseFileDialog::GetPreviewBitmapFromFile (  PathName *  pPath  )  [protected, virtual]

Rips a preview bitmap from the specified file, if appropriate. The class variable pBitmapToUse will contain the bitmap or will contain NULL if no bitmap is found. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 18/7/96 Returns: - See also: OpenFileDialog::OnFileNameChange; Definition at line 1277 of file filedlgs.cpp. { CCDiskFile File ( 1024, FALSE, TRUE ); String_256 Type ( pPath->GetType() ); KernelBitmap *pThumbnail = NULL; BOOL ReadOK = FALSE; // If there is a preview bitmap in use, delete it first. if ( pBitmapToUse != NULL ) { delete pBitmapToUse; pBitmapToUse = NULL; } // Get lowercase filetype Type.toLower(); // Bodge to speed galleries up for art files - doesn't check or use external previews if ((Type.Sub((String_8)"cdr") != -1) || (Type.Sub((String_8)"cmx") != -1) ) { // Use the RIFF file import code. ReadOK = ReadRIFFPreview ( File, pPath ); } // Read in a native file. else if ( !Type.Sub ( ( String_8 ) "art" ) || !Type.Sub ( ( String_8 ) "xar" ) || !Type.Sub ( ( String_8 ) "cxn" ) || !Type.Sub ( ( String_8 ) "cxw" ) || !Type.Sub ( ( String_8 ) "web" ) ) { // Use the native file format import code. ReadOK = ReadNativePreview ( File, pPath ); } // Try a PNG. else if ( !Type.Sub ( ( String_8 ) "png" ) ) { // Use the PNG import code to load the bitmap up. ReadOK = ReadBitmapPreview ( File, pPath, FILTERID_PREVIEW_PNG ); } // Try a BMP. else if ( !Type.Sub ( ( String_8 ) "bmp" ) ) { // Use the BMP import code to load the bitmap up. ReadOK = ReadBitmapPreview ( File, pPath, FILTERID_PREVIEW_BMP ); } // Try a GIF. else if ( !Type.Sub ( ( String_8 ) "gif" ) ) { // Use the GIF import code to load the bitmap up. ReadOK = ReadBitmapPreview ( File, pPath, FILTERID_PREVIEW_GIF ); } // Try a JPEG. else if ( !Type.Sub ( ( String_8 ) "jpg" ) || !Type.Sub ( ( String_8 ) "jpeg" ) ) { // Use the JPEG import code to load the bitmap up. ReadOK = ReadBitmapPreview ( File, pPath, FILTERID_IMPORT_JPEG ); } // Try a TIFF. else if ( !Type.Sub ( ( String_8 ) "tif" ) || !Type.Sub ( ( String_8 ) "tiff" ) ) { // Use the JPEG import code to load the bitmap up. ReadOK = ReadBitmapPreview ( File, pPath, FILTERID_PREVIEW_TIFF ); } // Clear any errors we encountered Error::ClearError(); return ReadOK; }

Filter * BaseFileDialog::GetSelectedExportFilter (  INT32  TheSelectedFilter  )  [virtual]

Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 4/1/96 Returns: TRUE if it worked, FALSE if not Definition at line 848 of file filedlgs.cpp. { // Find the filter that the user has chosen Filter *pFilter = Filter::GetFirst(); while (pFilter != NULL) { if ((pFilter->GetFlags().CanExport) && (pFilter->pOILFilter->Position == TheSelectedFilter)) // This is the filter! break; // Try the next filter pFilter = Filter::GetNext(pFilter); } return pFilter; }

INT32 BaseFileDialog::GetSelectedFilterIndex (   )  [virtual]

Allows access in a kernelly fashion to the selected filter index on the common file dialog box. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 4/1/96 Returns: The index of the selected filter Definition at line 731 of file filedlgs.cpp. { return GetFilterIndex(); }

BOOL BaseFileDialog::HandleOptions (   )  [protected, virtual]

Implements the options button installed for WEBSTER Base class does nowt. Author: Mark_Neves (Xara Group Ltd) <camelotdev@xara.com> Date: 24/1/97 Returns: - Reimplemented in SaveFileDialog, ExportFileDialog, and GIFExportFileDialog. Definition at line 1163 of file filedlgs.cpp. { return TRUE; }

UINT32 CALLBACK BaseFileDialog::HookProc (  wxWindow *  hwnd, UINT32  nMsg, WPARAM  wParam, LPARAM  lParam )  [static, protected]

Definition at line 349 of file filedlgs.cpp. { // If there is no current file dialog then just say nothing and do nothing // This MAY happen if we are bodging the web filename file dialog which is to get // round having double file dialogs on screen, which is BAD! if (m_pCurrentFileDialog == NULL) // || m_pCurrentFileDialog->hwnd == NULL) return FALSE; return m_pCurrentFileDialog->OnHookMsg(hwnd, nMsg, wParam, lParam); }

BOOL BaseFileDialog::Init (  void   )  [static]

Declares some preferences for the Open and Save dialogs. Author: Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com> Date: 25/1/95 Returns: TRUE if it worked, FALSE if it failed Definition at line 490 of file filedlgs.cpp. { // Set some defaults String_256 Blank(""); DefaultSaveFilePath = Blank; DefaultOpenFilePath = Blank; // declare prefs for the open and save dialogs Camelot.DeclareSection(_T("Filters"), 6); Camelot.DeclarePref(_T("Filters"), _T("DefaultSaveFilePath"), &DefaultSaveFilePath); Camelot.DeclarePref(_T("Filters"), _T("DefaultOpenFilePath"), &DefaultOpenFilePath); Camelot.DeclarePref(_T("Filters"), _T("OpenFileFilter"), &SelectedFilter); Camelot.DeclarePref(_T("Filters"), _T("MakeBakFiles"), &MakeBakFiles); Camelot.DeclarePref(_T("Filters"), _T("ShowPreviewBitmap"), &ShowPreviewBitmap); Camelot.DeclarePref(_T("Filters"), _T("ThumbNailMode"), &ThumbNailMode); return TRUE; }

BOOL BaseFileDialog::IsValidFilename (   )  [virtual]

Makes sure that the filename picked is actually OK. If there is another file of the same name, it checks to see if the user wants to replace it. Moved from SaveFileDialog 9/1/96. Author: Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com> Date: 31/10/95 Returns: TRUE if the current filename is Acceptable, FALSE if not Reimplemented in SliceSaveFileDlg, and ExportFileDialog. Definition at line 941 of file filedlgs.cpp. { // Get the pathname wxString FullPath = GetFilename(); AppendExtension(&FullPath); // Webster - RanbirR 17/02/97 // Save the file name with our Filter extension, for use in our Message Box. #ifdef WEBSTER wxString FileName(FullPath); #endif //webster // if doesn't exist then thats fine if( wxFile::Exists( FullPath ) ) { // WEBSTER-ranbirr-27/03/97 // Remove the extension from the file. Webster - RanbirR 11\02\97. #ifdef WEBSTER RemoveFileExtension(&FileName); #endif //webster return TRUE; } // Added for Webster - Ranbir 11\02\97 // Removes the exstion from a file name. #ifdef WEBSTER RemoveFileExtension(&FileName); #endif //webster // Get the filename into a Path object #ifndef WEBSTER String_256 KernelFilename(FullPath); PathName FileMessage(KernelFilename); KernelFilename = FileMessage.GetTruncatedPath(50); #endif //webster // Webster - RanbirR 17/02/97 // Use "FileName", since it contains the Filter extension. #ifdef WEBSTER String_256 KernelFilename(FileName); PathName FileMessage(KernelFilename); KernelFilename = FileMessage.GetTruncatedPath(50); #endif //webster const TCHAR* Name; Name = (TCHAR*)KernelFilename; String_256 strPrompt( _R(IDM_OVERWRITE) ); // fill in the %s field with the filename TCHAR ErrorMsg[256]; camSnprintf( ErrorMsg, sizeof(ErrorMsg) / sizeof(ErrorMsg[0]), strPrompt, (const TCHAR*)Name ); Error::SetError( 0, ErrorMsg, 0 ); SetNextMsgHelpContext(_R(IDM_OVERWRITE)); // then ask the user ErrorInfo Info; Info.Button[0] = _R(IDB_OVERWRITE); Info.Button[1] = _R(IDS_CANCEL); // This makes the cancel button the default one in this situation // as defaulting to replace is bad. Info.OK = Info.Cancel = 2; UINT32 idResult = AskQuestion( &Info ); // if they cancel, then the name is not acceptable to them if( _R(IDS_CANCEL) == idResult ) return FALSE; // user was quite keen on the replace file idea. // delete the file we're replacing so rampant filters don't get upset // Removed 2/1/96 as the export filters should be using the new DeleteExportFile function // Problems with this approach as if the exporter pops up an expotr options dialog box then // most people would expect a cancel on this not to vape the file. //_unlink(FullPath); return TRUE; }

void BaseFileDialog::OnFileNameChange (   )  [protected, virtual]

Should be called when the user has selected a new file in the file list. We might need to do things like remove the preview bitmap from the file and display it. Only called back if OFN_EXPLORER is set and you can only do this on Windows 95 otherwise a dialog is not popped up. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 17/7/96 Returns: - See also: BaseFileDialog::OnHookMsg; BaseFileDialog::HookProc; ExportFileDialog::OnLBSelChangedNotify; Reimplemented in SaveTemplateDialog. Definition at line 1186 of file filedlgs.cpp. { #if _MFC_VER >= 0x400 // Remove code completely if using less than MFC4.0 as calls like SetControlText // will not be present and this function will not work // Just in case Windows NT 3 decides to call this we'd better stop it as otherwise things // will be happening more than they should. This is the method used on Windows 95 or NT 4. if (!CCamApp::IsNewWindowsUI()) return; // Graeme (1/12/00) - We need to update ShowPreviewBitmap here. This updates the registry // settings, and enables the dialogue to remember the show preview bitmap settings. The // single equals sign is intentional, as I want to perform an assignment, rather than an // equality operation. if ( ShowPreviewBitmap = IsDlgButtonChecked ( _R(IDC_SHOWPREVIEW) ) ) { // Get the filename which the user has entered in the field. wxString FileName = GetFileName(); // Added by Craig Hamilton 20/9/00. // This fixes the problem where a user drags a file over folders within the import // dialog causing the preview to be redone. If the previously selected file is the // same as the current then there is no need to regenerate a new preview. wxString pathName = GetPathName(); if(m_previousPathName != pathName) { // Reinitialise. This is the only place this happens. m_previousPathName = pathName; // If its empty then return immediately if (FileName.IsEmpty()) return; PathName Path(FileName.GetBuffer(256)); FileName.ReleaseBuffer(); if (!Path.IsValid()) { // There was a problem e.g. user has typed f: // Magically a bad pathname sets an error so clear it! Error::ClearError(); return; } BOOL Previous = (pBitmapToUse != NULL); BOOL ok = GetPreviewBitmapFromFile(&Path); BOOL Now = (pBitmapToUse != NULL); // If we have changed state or read a new preview bitmap ok then force a redraw if ((!Previous && Now) || (Previous && !Now) || ok) { // Force a redraw of the preview bitmap icon, as we have changed state wxWindow* Icon = FindWindow( _R(IDC_PREVIEW)); ::InvalidateRect(Icon, NULL, TRUE); } } // End added. } else { // Delete the present bitmap so we show nothing if (pBitmapToUse != NULL) { delete pBitmapToUse; pBitmapToUse = NULL; // Force a redraw of the preview bitmap icon, as we have changed state wxWindow* Icon = FindWindow( _R(IDC_PREVIEW)); ::InvalidateRect(Icon, NULL, TRUE); } } #endif return; }

UINT32 BaseFileDialog::OnFileTypeChange (   )  [protected, virtual]

Should be called when the user has selected a new file type from the "Files of type" combo box. We might need to do things like fix the file extension for the currently selected save/export filter. Baseclass version. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 12/1/96 Returns: TRUE if it worked, FALSE if it failed See also: BaseFileDialog::OnHookMsg; BaseFileDialog::HookProc; Definition at line 473 of file filedlgs.cpp. { return TRUE; }

void BaseFileDialog::OnFolderChange (   )  [protected, virtual]

Read preference and apply thumbnail mode if required. Author: Marc_Power (Xara Group Ltd) <camelotdev@xara.com> Creation: 25/01/2005 Definition at line 2055 of file filedlgs.cpp. { if(ThumbNailMode) { wxWindow* view = FindWindowEx(GetParent()->m_hWnd, 0, "SHELLDLL_DefView", 0); ::SendMessage(view, WM_COMMAND, FCIDM_SHVIEW_THUMBNAIL, 0); } }

afx_msg void BaseFileDialog::OnHelp (   )  [protected]

Handle the clicks on the help button. This is the Windows 95 UI form of the function. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 30/7/96 Returns: - Definition at line 1100 of file filedlgs.cpp. { // Run the help engine for this dialog and don't bother processing this message // any further, we've done it. HelpUser(*this); return; }

UINT32 BaseFileDialog::OnHookMsg (  wxWindow *  hwnd, UINT32  nMsg, WPARAM  wParam, LPARAM  lParam )  [protected, virtual]

Called by the common dialog library when it has a message to process. This function checks if the help button has been clicked, and runs the help engine if it has. Author: Justin_Flude (Xara Group Ltd) <camelotdev@xara.com> Date: 18/5/95 Parameters: (the  usual message proc parameters) [INPUTS] Returns: FALSE if the dialog library should process this message, TRUE if it should ignore it. See also: BaseFileDialog::HookProc Definition at line 376 of file filedlgs.cpp. { // Check for a help message. if (nMsg == WM_COMMAND && LOWORD(wParam) == pshHelp) { // Run the help engine for this dialog and don't bother processing this message // any further, we've done it. HelpUser(*this); return TRUE; } // Allow explorer style dialog boxes to set themselves up if (nMsg == WM_INITDIALOG && CCamApp::IsNewWindowsUI()) { // Only call this if we are the new explorer dialog boxes return ExplorerInitDialog(hwnd); } // WM_NOTIFY notification messages indicates actions taken by the user in the dialog box. // The lParam parameter for each WM_NOTIFY message is the address of a OFNOTIFY structure // that defines the action. The code member in the header for the OFNOTIFY structure // contains the notification values if (nMsg == WM_NOTIFY && lParam != NULL) { OFNOTIFY * pNotify = (OFNOTIFY*)lParam; // This is used to inform explorer style dialogs of actions if (CCamApp::IsNewWindowsUI()) return ExplorerFileHookNotify(hwnd, pNotify); } //TODO: change 'File name:' to 'File name (or URL):' (WARNING: change _R(ID_OF_FILENAME) with the correct ID) //SetDlgItemText(hwnd, _R(ID_OF_FILENAME), (TCHAR *)String_256("File name (or URL):")); #ifndef RALPH // By default let MFC handle all other messages in its own hook procedure. return _AfxCommDlgProc(hwnd, nMsg, wParam, lParam); #else // Why doesn't this work with _AFXDLL defined ? return FALSE; #endif }

BOOL BaseFileDialog::OnNotify (  WPARAM  wParam, LPARAM  lParam, LRESULT *  pResult )  [protected, virtual]

Used to copy the OPENFILNAMEEX values into the standard OPENFILENAME member variable. This is to support XP-style common file dialogs - the places bar on the left hand side of the dialog. Author: Alex Date: 06/11/2003 Parameters: wParam  - The Windows wParam parameter [INPUTS] lParam - The Windows lParam parameter Returns: TRUE Definition at line 1858 of file filedlgs.cpp. { memcpy(&m_ofn, &m_ofnEx, sizeof(m_ofn)); m_ofn.lStructSize = sizeof(m_ofn); return CFileDialog::OnNotify(wParam, lParam, pResult); }

afx_msg void BaseFileDialog::OnOptions (   )  [protected]

Implements the options button installed for WEBSTER Base class does nowt. Author: Mark_Neves (Xara Group Ltd) <camelotdev@xara.com> Date: 24/1/97 Returns: - Definition at line 1145 of file filedlgs.cpp. { // WEBSTER - markn 28/1/97 HandleOptions(); }

afx_msg void BaseFileDialog::OnPaletteChanged (  CWnd *  pFocusWnd  )

afx_msg LRESULT BaseFileDialog::OnRedrawMessage (  WPARAM  wParam, LPARAM  lParam )  [protected]

Handles the Redraw control wanting to be drawn. This control is used to display the Preview bitmaps from selected files in the file list. When we get this message we will need to go and find the bitmap from the file and display it. The message is sent up by one of our cc_DialogRedraw custom controls. Author: Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com> Date: 16/3/95 Parameters: wParam  - The Windows wParam parameter [INPUTS] lParam - The Windows lParam parameter Returns: TRUE Definition at line 1640 of file filedlgs.cpp. { // TRACEUSER( "Neville", _T("Draw the Blank version of the control now, as we don't have a filename\n")); // Do nothing if not an explorer type dialog box if (!CCamApp::IsNewWindowsUI()) return TRUE; // Find out about the paint message and fill in the details in the kernel message RedrawInfo* pInfo = (RedrawInfo*) lParam; ReDrawInfoType ExtraInfo; ExtraInfo.pMousePos = NULL; // No mouse position info for redraw events // Build a CC dc out of it for rendering to the screen // Get a MFC CDC to put the DC in CCDC MyDc(RENDERTYPE_SCREEN); MyDc.Attach(pInfo->PaintInfo.hdc); ExtraInfo.pDC = &MyDc; // The devices DPI ExtraInfo.Dpi = MyDc.GetDeviceCaps(LOGPIXELSY); // How big the window is RECT WindowSize; if (::GetClientRect((wxWindow*)wParam, &WindowSize)) { ExtraInfo.dx = (((INT32)WindowSize.right)*72000) / ExtraInfo.Dpi; ExtraInfo.dy = (((INT32)WindowSize.bottom)*72000) / ExtraInfo.Dpi; } // Work out the size of the invalidated region RECT* ClipRect = &pInfo->PaintInfo.rcPaint; DocRect DocClipRect; // Convert to millipoints, Also need to flip the y coords to get a // rectangle in with the origin in the bottom left. DocClipRect.lo.x = (ClipRect->left * 72000) / ExtraInfo.Dpi; DocClipRect.lo.y = ExtraInfo.dy - ((ClipRect->bottom * 72000) / ExtraInfo.Dpi); DocClipRect.hi.x = (ClipRect->right * 72000) / ExtraInfo.Dpi; DocClipRect.hi.y = ExtraInfo.dy - ((ClipRect->top * 72000) / ExtraInfo.Dpi); // Set the pointer in the extra info structure ExtraInfo.pClipRect = &DocClipRect; // Go get a render region DocRect VirtualSize(0, 0, ExtraInfo.dx, ExtraInfo.dy); RenderRegion* pRender = CreateOSRenderRegion(&VirtualSize, &ExtraInfo); if (pRender!=NULL) { // Code stolen from ColourEditDlg::RenderControl DialogColourInfo RedrawColours; // Get a supplier for default dlg colours INT32 PixelSize = 72000 / ExtraInfo.Dpi; // Size of output pixel in millipoints // Render the attributes and then a rectangle pRender->SaveContext(); // pBitmapToUse stores the preview bitmap of the current file if (pBitmapToUse) { // bring the left hand edge in one pixel. VirtualSize.lox += PixelSize; // Using this method we don't get flicker on the backdrop as we draw the background rectangle // followed by the white new background // Draw single pixel black line left and top and single pixel background colour 1 pixel in pRender->SetLineWidth(0); pRender->SetFillColour(RedrawColours.DialogBack()); pRender->SetLineColour(COLOUR_BLACK); //RedrawColours.ButtonShadow()); pRender->DrawLine(DocCoord(VirtualSize.lo.x, VirtualSize.hi.y), VirtualSize.hi); // Top Left to Top Right pRender->DrawLine(DocCoord(VirtualSize.lo.x, VirtualSize.hi.y), VirtualSize.lo); // Top Left to Bottom Left pRender->SetLineColour(RedrawColours.DialogBack()); pRender->DrawLine(DocCoord(VirtualSize.lo.x + PixelSize, VirtualSize.hi.y - PixelSize), DocCoord(VirtualSize.hi.x, VirtualSize.hi.y - PixelSize)); // Top Left to Top Right pRender->DrawLine(DocCoord(VirtualSize.lo.x + PixelSize, VirtualSize.lo.y), DocCoord(VirtualSize.lo.x + PixelSize, VirtualSize.hi.y - PixelSize)); // Bottom Left to Top Left // Draw single pixel highlight line right and bottom and single pixel background colour 1 pixel in pRender->SetLineColour(RedrawColours.ButtonHighlight()); pRender->DrawLine(DocCoord(VirtualSize.hi.x, VirtualSize.hi.y - PixelSize), DocCoord(VirtualSize.hi.x, VirtualSize.lo.y)); pRender->DrawLine(DocCoord(VirtualSize.hi.x - PixelSize, VirtualSize.lo.y + PixelSize), DocCoord(VirtualSize.lo.x + PixelSize, VirtualSize.lo.y + PixelSize)); pRender->SetLineColour(RedrawColours.DialogBack()); pRender->DrawLine(DocCoord(VirtualSize.hi.x - PixelSize, VirtualSize.hi.y - PixelSize), DocCoord(VirtualSize.hi.x - PixelSize, VirtualSize.lo.y + 2 * PixelSize)); pRender->DrawLine(DocCoord(VirtualSize.hi.x - PixelSize, VirtualSize.lo.y + 2 * PixelSize), DocCoord(VirtualSize.lo.x + PixelSize, VirtualSize.lo.y + 2 * PixelSize)); // put the left hand edge back again VirtualSize.lox -= PixelSize; // And deflate the rect by 2 pixels VirtualSize.Inflate(-PixelSize * 2); // Code stolen from BfxDlg::RenderBitmap pRender->SetLineColour(COLOUR_TRANS); // Draw a rectangle to fill in the background - Fill with Dialogue Background colour pRender->SetFillColour(COLOUR_WHITE); pRender->DrawRect(&VirtualSize); NodeBitmap NB; NodeBitmap * pNodeBitmap = &NB; if (!((pNodeBitmap == NULL) || (!pNodeBitmap->SetUpPath(12,12)))) { // Get a new bitmap object for this node. pNodeBitmap->GetBitmapRef()->SetBitmap(pBitmapToUse); ENSURE(pNodeBitmap->GetBitmap()->ActualBitmap != NULL, "No bitmap object found!"); DocRect BitmapSize(VirtualSize); BitmapInfo BMInfo; pBitmapToUse->ActualBitmap->GetInfo(&BMInfo); if (BMInfo.PixelWidth==0) BMInfo.PixelWidth=1; if (BMInfo.PixelHeight==0) BMInfo.PixelHeight=1; double BMAspect = ((double)(BMInfo.PixelWidth))/((double)(BMInfo.PixelHeight)); double RedrawAspect = ((double)(ExtraInfo.dx))/((double)(ExtraInfo.dy)); if (BMAspect>RedrawAspect) { // background colour at top and bottom INT32 NewHeight = (INT32)( 0.5 + ((double)(VirtualSize.Width()))/BMAspect); if (NewHeight<1) NewHeight = 1; BitmapSize.loy = (VirtualSize.hiy + VirtualSize.loy - NewHeight) / 2; BitmapSize.hiy = BitmapSize.loy + NewHeight; } else { // background colour on left and right INT32 NewWidth = (INT32)( 0.5 + ((double)(VirtualSize.Height()))*BMAspect); if (NewWidth<1) NewWidth = 1; BitmapSize.lox = (VirtualSize.hix + VirtualSize.lox - NewWidth) / 2; BitmapSize.hix = BitmapSize.lox + NewWidth; } // And set this in our bitmap node pNodeBitmap->CreateShape(BitmapSize); QualityAttribute* pQualAttr = new QualityAttribute; if (pQualAttr != NULL) { // If all that worked then turn on anti-aliasing when drawing the bitmap in preview. pQualAttr->QualityValue = Quality::QualityMax; pRender->SetQuality(pQualAttr, TRUE); } pNodeBitmap->Render(pRender); } } else { // make the right hand side out of the box so that the right black line does not show VirtualSize.hix += PixelSize; // Draw a backgound making sure we blat anything previously there wiht the dialog // background colour pRender->SetLineWidth(0); pRender->SetFillColour(RedrawColours.DialogBack()); pRender->SetLineColour(COLOUR_BLACK); //RedrawColours.ButtonShadow()); pRender->DrawRect(&VirtualSize); pRender->DrawLine(DocCoord(VirtualSize.lo.x, VirtualSize.hi.y), VirtualSize.hi); pRender->SetLineWidth(0); pRender->SetLineColour(RedrawColours.ButtonHighlight()); pRender->DrawLine(DocCoord(VirtualSize.hi.x - PixelSize, VirtualSize.hi.y - PixelSize), DocCoord(VirtualSize.hi.x - PixelSize, VirtualSize.lo.y)); pRender->DrawLine(DocCoord(VirtualSize.hi.x - PixelSize, VirtualSize.lo.y + PixelSize), DocCoord(VirtualSize.lo.x + PixelSize, VirtualSize.lo.y + PixelSize)); // Bottom Right to Bottom Left // bring the right hand side back in VirtualSize.hix -= PixelSize; // bring the bottom up VirtualSize.loy += PixelSize; // Draw the no bitmap present cross i.e. vertical // And Deflate the rect by 1 pixels so we draw to the outer lines VirtualSize.Inflate(-PixelSize); INT32 Width = VirtualSize.Width(); INT32 Height = VirtualSize.Height(); pRender->SetLineWidth(0); pRender->SetLineColour(COLOUR_BLACK); pRender->DrawLine(DocCoord(VirtualSize.lo.x + Width/2, VirtualSize.lo.y), DocCoord(VirtualSize.lo.x + Width/2, VirtualSize.hi.y)); pRender->DrawLine(DocCoord(VirtualSize.lo.x, VirtualSize.lo.y + Height/2), DocCoord(VirtualSize.hi.x, VirtualSize.lo.y + Height/2)); } pRender->RestoreContext(); // Get rid of the render region DestroyOSRenderRegion(pRender); } // Give back the dc MyDc.Detach(); return TRUE; }

afx_msg void BaseFileDialog::OnShowPreviewBitmap (   )  [protected]

Handle the clicks on the buttons which offer the show preview bitmap. This is the Windows 95 UI form of the function. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 18/7/96 Returns: - Definition at line 1124 of file filedlgs.cpp. { if (!CCamApp::IsNewWindowsUI()) return; // Do exactly the same as the file name change code does OnFileNameChange(); }

void BaseFileDialog::OnSize (  UINT32  nType, INT32  cx, INT32  cy )  [protected]

Author: Alex Date: 12/02/2004 Parameters: nType  - [INPUTS] cx - cy - Definition at line 1983 of file filedlgs.cpp. { wxFileDialog::OnSize(nType, cx, cy); // move the darn Help button!! CWnd *wndPreview = GetDlgItem(_R(IDC_PREVIEW)); CWnd *wndHelpButton = GetDlgItem(_R(ID_CC_HELP_BUTTON)); CWnd *wndDlg = GetParent(); CWnd *wndCancelButton = wndDlg->GetDlgItem(IDCANCEL); if(wndPreview && wndHelpButton) { wxRect rPreview, rCancel, rHelp; wndCancelButton->GetWindowRect(&rCancel); ScreenToClient(&rCancel); wndPreview->GetWindowRect(&rPreview); ScreenToClient(&rPreview); wndHelpButton->GetWindowRect(&rHelp); ScreenToClient(&rHelp); wndHelpButton->SetWindowPos(NULL, rPreview.left, rCancel.top, 0, 0, SWP_NOSIZE); // SWP_NOSIZE to keep the current button size } }

BOOL BaseFileDialog::OpenAndGetFileName (   )  [virtual]

Opens the common file dialog box up, waits for the user to gives us the filename that they wish to use and either press ok or cancel. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 4/1/96 Returns: True if the user pressed ok on the dialog box, False otherwise Definition at line 909 of file filedlgs.cpp. { PORTNOTE("other", "Removed ControlHelper usage" ) #if !defined(EXCLUDE_FROM_XARALX) // Keep Control Helper system informed ControlHelper::InformModalDialogOpened(); #endif // 'Do' the dialog INT32 DlgResult = ShowModal(); PORTNOTE("other", "Removed ControlHelper usage" ) #if !defined(EXCLUDE_FROM_XARALX) // Keep Control Helper system informed ControlHelper::InformModalDialogClosed(); #endif return (DlgResult == wxID_OK); }

BOOL BaseFileDialog::OpenFileForPreview (  CCDiskFile &  File, PathName *  pPath )  [protected, virtual]

Sets the file up so that the preview image can be read. Author: Graeme_Sutherland (Xara Group Ltd) <camelotdev@xara.com> Date: 16/5/00 Parameters: &File  - The file containing the preview bitmap. [INPUTS] pPath - The pathname of the file. Returns: TRUE - The file was opened OK. FALSE - An error occured. Definition at line 1369 of file filedlgs.cpp. { // Don't error, just set exceptions... BOOL Found = FALSE; // Open file and check if it exists at the same time TRY { Found = File.open(*pPath, ios::in | ios::binary | ios::nocreate); } CATCH( CFileException, e) { Found = FALSE; Error::ClearError(); } END_CATCH return Found; }

BOOL BaseFileDialog::PrepareDialog (   )  [virtual]

Does anything the dialogs want doing after they have been created, but before they are displayed. Author: Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com> Date: 26/1/95 Returns: TRUE if it worked, FALSE if not Reimplemented in OpenFileDialog, SaveFileDialog, and SaveTemplateDialog. Definition at line 524 of file filedlgs.cpp. { // Nothing to do in this base class . . . return TRUE; }

BOOL BaseFileDialog::ReadBitmapPreview (  CCDiskFile &  File, PathName *  pPath, UINT32  FilterID )  [protected, virtual]

Creates a preview image from the contents of a bitmap file. Author: Graeme_Sutherland (Xara Group Ltd) <camelotdev@xara.com> Date: 16/5/00 Parameters: &File  - The file containing the preview bitmap. [INPUTS] pPath - The pathname of the file. FilterID - The filter to use. Returns: TRUE - The preview bitmap was created successfully. FALSE - An error occurred. Definition at line 1567 of file filedlgs.cpp. { // Set up the default return value. BOOL Result = FALSE; // Try to open the file. if ( OpenFileForPreview ( File, pPath ) ) { // Find the first filter in the filter list. Filter* pFilter = Filter::GetFirst (); // Scan through the list of filters until the correct one is found. while ( ( pFilter != NULL ) && ( pFilter->FilterID != FilterID ) ) { // Try the next filter pFilter = Filter::GetNext ( pFilter ); } // If a filter has been found, load up its contents. The IS_KIND_OF is a sanity // check to ensure that the SetPreviewBitmap isn't called on (e.g.) a vector // filter. if ( pFilter != NULL && pFilter->IS_KIND_OF ( BaseBitmapFilter ) ) { // It's necessary to cast the filter to be a base bitmap filter, so // that the bitmap loading code is exposed. BaseBitmapFilter *pBMPFilter = static_cast<BaseBitmapFilter*> ( pFilter ); // Tell the filter that it *IS* a preview bitmap. pBMPFilter->SetPreviewBitmap ( TRUE ); // Attempt to read the preview in from the file. if ( pBMPFilter->ImportBitmap ( &File, &pBitmapToUse ) ) { // It didn't work. Result = TRUE; } // Something went wrong with the input, so clean up the bitmap. else { // Delete the bitmap. delete pBitmapToUse; pBitmapToUse = NULL; } // I need to manually shutdown the loading bar. EndSlowJob (); } } // Return to the main loop. return Result; }

BOOL BaseFileDialog::ReadNativePreview (  CCDiskFile &  File, PathName *  pPath )  [protected, virtual]

Reads in the native file chunk containing the preview. Author: Graeme_Sutherland (Xara Group Ltd) <camelotdev@xara.com> Date: 16/5/00 Parameters: &File  - The file containing the preview bitmap. [INPUTS] pPath - The pathname giving the location of the file. Returns: TRUE - The preview bitmap was created successfully. FALSE - An error occurred. Definition at line 1456 of file filedlgs.cpp. { // Now that we have had the decision to make .cxns become .xars, we must check to see if // its a new native file before just doing a straight Accusoft read. This will have the // added side effect of ensuring Accusoft do not see the native format files, without // our helping hand as to where they can look. Otherwise, they are likely to access // violate. BOOL Result = FALSE; BOOL IsNewFormat = FALSE; UINT32 FilterId = FILTERID_NONE; // Try to open the file up to get the preview image first! if ( !OpenFileForPreview ( File, pPath ) ) { return FALSE; } // In the process it will position the file at the start of the preview bitmap image // and get the image type // Use the special version of the function to read in bitmap which uses the present // file offset as the place that the image is stored. if ( BaseCamelotFilter::SkipToPreviewBitmap ( &File, &IsNewFormat, &FilterId ) && ( FilterId != FILTERID_NONE ) ) { // Load in the bitmap starting from the present point in the file Filter* pFilter = Filter::GetFirst(); while ((pFilter != NULL) && (pFilter->FilterID != FilterId)) { // Try the next filter pFilter = Filter::GetNext(pFilter); } if ( pFilter != NULL ) { // Ensure that it's a bitmap filter. ERROR3IF ( !pFilter->IS_KIND_OF ( BaseBitmapFilter ), "Preview filter is not a BaseBitmapFilter\n" ); // It's necessary to cast the filter to be a base bitmap filter, so // that the bitmap loading code is exposed. BaseBitmapFilter *pBMPFilter = static_cast<BaseBitmapFilter*> ( pFilter ); // Attempt to read the preview in from the file. if ( pBMPFilter->ImportBitmap ( &File, &pBitmapToUse ) ) { // It worked! Result = TRUE; } else { // Import failed! Delete the bitmap. delete pBitmapToUse; pBitmapToUse = NULL; } // I need to manually shutdown the loading bar. EndSlowJob (); } } // Try to use another method. else if ( !IsNewFormat && AccusoftFilters::GetVersionNumber() > 0 ) { // Old format had a preview as the first thing in the file so // Just do a straight load from the start of the file // But only if not a new format file as otherwise Accusoft does its usual lets load // something spappy. // Create a new bitmap record. WinBitmap *pBMP = new WinBitmap; // Read in and create the new bitmap. if ( pBMP != NULL && AccusoftFilters::ReadFromFile ( &File, &pBMP->BMInfo, &pBMP->BMBytes, TRUE ) && ( pBitmapToUse = new KernelBitmap ( pBMP, TRUE ) ) != NULL ) { // It worked! Result = TRUE; } // The bitmap wasn't loaded. else { // Import failed! Delete the bitmap. delete pBMP; } } // Return a pointer to the bitmap loaded from the file. return Result; }

BOOL BaseFileDialog::ReadRIFFPreview (  CCDiskFile &  File, PathName *  pPath )  [protected, virtual]

Reads in the RIFF chunk containing the preview. Author: Graeme_Sutherland (Xara Group Ltd) <camelotdev@xara.com> Date: 16/5/00 Parameters: &File  - The file containing the preview bitmap. [INPUTS] pPath - The pathname giving the location of the file. Returns: TRUE - The preview bitmap was created successfully. FALSE - An error occurred. Definition at line 1405 of file filedlgs.cpp. { // Set up the return variable. BOOL Result = FALSE; // Attempt to open the file, and read in the preview from the CMX or CDR file. if ( OpenFileForPreview ( File, pPath ) && AccusoftFilters::GetVersionNumber() > 0 && CMXImportFilter::SkipToPreviewBitmap ( &File ) ) { WinBitmap *pThumbnail = new WinBitmap; // Attempt to read in the bitmap. if ( !AccusoftFilters::ReadFromFile ( &File, &pThumbnail->BMInfo, &pThumbnail->BMBytes, TRUE, NULL, NULL, TRUE ) ) { // It failed to load, so clean up the bitmap. delete pThumbnail; pThumbnail = NULL; } // Create a kernel bitmap. else if ( pThumbnail != NULL && ( pBitmapToUse = new KernelBitmap ( pThumbnail, TRUE ) ) != NULL ) { // It worked. Result = TRUE; } } // Return whether it worked or not. return Result; }

BOOL BaseFileDialog::SetDefaultFileName (  String_256 &  Name  )  [virtual]

Sets the name and length of the name of the default file to be used in the common file dialog box. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 4/1/96 Parameters: Name  name of the file to be used by default [INPUTS] Returns: TRUE if it worked, FALSE if not Definition at line 808 of file filedlgs.cpp. { SetFilename( PCTSTR(Name) ); return TRUE; }

BOOL BaseFileDialog::SetInitialDirectory (  const String_256 &  strDir  )  [virtual]

Sets the directory which the common file dialog box will open looking at. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 4/1/96 Parameters: pDir  String containing the pathname to use [INPUTS] Returns: TRUE if it worked, FALSE if not Definition at line 788 of file filedlgs.cpp. { SetDirectory( PCTSTR(strDir) ); return TRUE; }

void BaseFileDialog::SetSelectedExportFilter (  UINT32  uiFilterID  )  [virtual]

Sets the selected export filter to the ID given. Author: Graham_Walmsley (Xara Group Ltd) <camelotdev@xara.com> Date: 3/7/97 Returns: - Definition at line 877 of file filedlgs.cpp. { //Search through the filters until we find the one we want Filter* pFilter = Filter::GetFirst(); while (pFilter != NULL) { if (pFilter->FilterID == uiFilterID) { //We've found it //So set this as the selected filter SetSelectedFilterIndex( pFilter->pOILFilter->Position ); return; } pFilter = Filter::GetNext(pFilter); } ERROR3("BaseFileDialog::SetSelectedExportFilter - couldn't find the Filter ID"); }

INT32 BaseFileDialog::SetSelectedFilterIndex (  INT32  NewIndex  )  [virtual]

Set the desired index for the filter that is going to be selected on the Common file dialog box. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 4/1/96 Returns: TRUE if it worked, FALSE if not Definition at line 748 of file filedlgs.cpp. { INT32 Old = GetFilterIndex(); SetFilterIndex( NewIndex ); TRACEUSER( "Neville", _T("SetSelectedFilterIndex - new %d (old = %d)\n"), NewIndex, Old); return Old; }

BOOL BaseFileDialog::SetTitle (  INT32  TitleId  )  [virtual]

Allows the title of the common file dialog box to be set up. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 4/1/96 Returns: TRUE if it worked, FALSE if not Definition at line 767 of file filedlgs.cpp. { if (SmartLoadString(0, TitleId, Title, 128)) SetName( Title ); return TRUE; }

virtual int BaseFileDialog::ShowModal (   )  [virtual]

---

Member Data Documentation

String_256 BaseFileDialog::DefaultOpenFilePath = TEXT("") [static]

Definition at line 152 of file filedlgs.h.

String_256 BaseFileDialog::DefaultSaveFilePath = TEXT("") [static]

Definition at line 151 of file filedlgs.h.

BOOL BaseFileDialog::ExplorerInited [protected]

Definition at line 236 of file filedlgs.h.

OPENFILENAMEEX BaseFileDialog::m_ofnEx [protected]

Definition at line 289 of file filedlgs.h.

BaseFileDialog * BaseFileDialog::m_pCurrentFileDialog = NULL [static]

Definition at line 212 of file filedlgs.h.

wxString BaseFileDialog::m_previousPathName [private]

Definition at line 300 of file filedlgs.h.

BOOL BaseFileDialog::MakeBakFiles = FALSE [static]

Definition at line 155 of file filedlgs.h.

KernelBitmap* BaseFileDialog::pBitmapToUse [protected]

Definition at line 294 of file filedlgs.h.

INT32 BaseFileDialog::SelectedFilter = FILTERID_VECTOR [static]

Definition at line 153 of file filedlgs.h.

BOOL BaseFileDialog::ShowPreviewBitmap = TRUE [static]

Definition at line 156 of file filedlgs.h.

BOOL BaseFileDialog::ThumbNailMode = FALSE [static]

Definition at line 157 of file filedlgs.h.

TCHAR BaseFileDialog::Title[TITLE_SIZE] [protected]

Definition at line 224 of file filedlgs.h.

BOOL BaseFileDialog::WantPreviewBitmap [protected]

Definition at line 296 of file filedlgs.h.

---

The documentation for this class was generated from the following files:

• wxOil/filedlgs.h (r1785/r1282)
• wxOil/filedlgs.cpp (r1785/r1712)

---