wxWidgets/src/mac/filedlg.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        filedlg.cpp
// Purpose:     wxFileDialog
// Author:      AUTHOR
// Modified by:
// Created:     ??/??/98
// RCS-ID:      $Id$
// Copyright:   (c) AUTHOR
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation "filedlg.h"
#endif

#include "wx/defs.h"
#include "wx/utils.h"
#include "wx/dialog.h"
#include "wx/filedlg.h"
#include "wx/intl.h"

IMPLEMENT_CLASS(wxFileDialog, wxDialog)

// begin wxmac

#include "morefile.h"
#include "moreextr.h"
#include "fullpath.h"
#include "fspcompa.h"
#include "PLStringFuncs.h"

char * gfilters[] =
{
	"*.TXT" ,
	
	NULL 
} ;

OSType gfiltersmac[] =
{
	'TEXT' ,
	
	'****'
} ;

static void wxMacSetupStandardFile(short newVRefNum, long newDirID) 
{ 
	enum 
	{ SFSaveDisk = 0x214, CurDirStore = 0x398 };
	*(short *) SFSaveDisk = -1 * newVRefNum; 
	*(long *) CurDirStore = newDirID; 
}

static void wxMacSetupStandardFileFromPath( const char* s )
{
	Str255	volume ;
	Str255	path ;
	short	vRefNum ;
	long dirRef ;
	short	i,j ;
	Boolean isDirectory ;
	
	for (i=0 ; (s[i]!=0) && (s[i]!=':') ;i++)
		{
		volume[i]=s[i] ;
		}
	volume[i]=':' ;
	volume[i+1]=0 ;
	
	// then copy the rest of the filename
	
	for (j=0;(s[i]!=0);i++,j++)
		{
		path[j]=s[i] ;		
		}
	path[j]=0 ;
	
	c2pstr((Ptr) volume) ;
	c2pstr((Ptr) path) ;
	
	SetVol(volume, 0) ;
	GetVol( NULL, &vRefNum ) ;
		
	GetDirectoryID( vRefNum , fsRtDirID , path , &dirRef , &isDirectory ) ;
	wxMacSetupStandardFile(vRefNum, dirRef) 	;
}

enum {
	kSelectItem = 10, 			// select button item number
	kSFGetFileDlgID = 251,	// dialog resource number
	kStrListID = 251,			// our strings
	kSelectStrNum = 1,			// word 'Select: ' for button
	kDesktopStrNum = 2,			// word 'Desktop' for button
	kSelectNoQuoteStrNum = 3,	// word 'Select: ' for button
	
	kUseQuotes = true,			// parameter for SetButtonName
	kDontUseQuotes = false
};

// the data we need to pass to our standard file hook routine
// includes a pointer to the dialog, a pointer to the standard
// file reply record (so we can inspect the current selection)
// and a copy of the "previous" file spec of the reply record
// so we can see if the selection has changed

const int kwxMacFileTypes = 10 ;

struct OpenUserDataRec {
	StandardFileReply	*sfrPtr;
	FSSpec				oldSelectionFSSpec;
	char				filter[kwxMacFileTypes][10] ;
	OSType				filtermactypes[kwxMacFileTypes] ;
	int					numfilters ;
	DialogPtr			theDlgPtr;
};
typedef struct OpenUserDataRec
	OpenUserDataRec, *OpenUserDataRecPtr;

static void GetLabelString(StringPtr theStr, short stringNum)
{
	GetIndString(theStr, kStrListID, stringNum);
}

static void CopyPStr(StringPtr src, StringPtr dest)
{
	BlockMoveData(src, dest, 1 + src[0]);
}

static char GetSelectKey(void)
{
	// this is the key used to trigger the select button
	
	// NOT INTERNATIONAL SAVVY; should at least grab it from resources
	
	return 's';
}

// FlashButton briefly highlights the dialog button 
// as feedback for key equivalents

static void FlashButton(DialogPtr theDlgPtr, short buttonID)
{
	short	buttonType;
	Handle	buttonHandle;
	Rect	buttonRect;
	unsigned long	finalTicks;
	
	GetDialogItem(theDlgPtr, buttonID, &buttonType, &buttonHandle, &buttonRect);
	HiliteControl((ControlHandle) buttonHandle, kControlButtonPart);
	Delay(10, &finalTicks);
	HiliteControl((ControlHandle) buttonHandle, 0);
}

static Boolean SameFSSpec(FSSpecPtr spec1, FSSpecPtr spec2)
{
	return (spec1->vRefNum == spec2->vRefNum
			&& spec1->parID == spec2->parID
			&& EqualString(spec1->name, spec2->name, false, false));
}
// MyModalDialogFilter maps a key to the Select button, and handles
// flashing of the button when the key is hit

static pascal Boolean SFGetFolderModalDialogFilter(DialogPtr theDlgPtr, EventRecord *eventRec,
											short *item, Ptr dataPtr)
{
#pragma unused (dataPtr)

	// make certain the proper dialog is showing, 'cause standard file
	// can nest dialogs but calls the same filter for each
	
	if (((WindowPeek) theDlgPtr)->refCon == sfMainDialogRefCon)
	{
		// check if the select button was hit
		/*
		if ((eventRec->what == keyDown)
			&& (eventRec->modifiers & cmdKey) 
			&& ((eventRec->message & charCodeMask) == GetSelectKey()))
		{
			*item = kSelectItem;
			FlashButton(theDlgPtr, kSelectItem);
			return true;
		}
		*/
	}
		
	return false;
}

void ExtendedOpenFile( ConstStr255Param message , ConstStr255Param path , const char *filter , FileFilterYDUPP fileFilter, StandardFileReply *theSFR)
{
	Point 				thePt;
	OpenUserDataRec			myData;
	FSSpec				tempSpec;
	Boolean				folderFlag;
	Boolean				wasAliasedFlag;
	DlgHookYDUPP		dlgHookUPP;
	ModalFilterYDUPP	myModalFilterUPP;
	OSErr				err;
	SFTypeList			types ;
	
	
	// presumably we're running System 7 or later so CustomGetFile is
	// available
	
	// set initial contents of Select button to a space
	
	CopyPStr("\p ", theSFR->sfFile.name);
	
	// point the user data parameter at the reply record so we can get to it later
	
	myData.sfrPtr = theSFR;
	if ( filter && filter[0] )
	{
		myData.numfilters = 1 ;
		for ( int i = 0 ; i < myData.numfilters ; i++ )
		{
			int j ;
			
			strcpy( myData.filter[i] , filter ) ;
			for( j = 0 ; myData.filter[i][j] ; j++ )
			{
				myData.filter[i][j] = toupper( myData.filter[i][j] ) ;
			}
			for ( j = 0 ; gfilters[j] ; j++ )
			{
				if ( strcmp( myData.filter[i] , gfilters[j] ) == 0 )
				{
					myData.filtermactypes[i] = gfiltersmac[j] ;
					break ;
				}
			}
			if( gfilters[j] == NULL )
			{
				myData.filtermactypes[i] = '****' ;
			}
		}
	}
	else
	{
		myData.numfilters = 0 ;
	}
	// display the dialog
	
	dlgHookUPP = NULL ;
//	dlgHookUPP = NewDlgHookYDProc(SFGetFolderDialogHook);
	myModalFilterUPP = NewModalFilterYDProc(SFGetFolderModalDialogFilter);
	
	thePt.h = thePt.v = -1;	// center dialog
	
	ParamText( message , NULL , NULL , NULL ) ;
	
	CustomGetFile(	fileFilter, 
					-1,					// show all types
					NULL,
					theSFR,
					kSFGetFileDlgID,
					thePt,				// top left point
					dlgHookUPP,
					myModalFilterUPP,
					nil,				// activate list
					nil,				// activate proc
					&myData);
					
	DisposeRoutineDescriptor(dlgHookUPP);
	DisposeRoutineDescriptor(myModalFilterUPP);
	
	// if cancel wasn't pressed and no fatal error occurred...
	
	if (theSFR->sfGood)
	{
		// if no name is in the reply record file spec,
		// use the file spec of the parent folder
		
		if (theSFR->sfFile.name[0] == '\0')
		{
			err = FSMakeFSSpec(theSFR->sfFile.vRefNum, theSFR->sfFile.parID,
								"\p", &tempSpec);
			if (err == noErr)
			{
				theSFR->sfFile = tempSpec;
			}
			else
			{
				// no name to return, forget it
				
				theSFR->sfGood = false;
			}
		}
		
		// if there is now a name in the file spec, check if it's
		// for a folder or a volume
		
		if (theSFR->sfFile.name[0] != '\0')
		{
			// the parID of the root of a disk is always fsRtParID == 1
			
			if (theSFR->sfFile.parID == fsRtParID)
			{
				theSFR->sfIsVolume = true;
				theSFR->sfIsFolder = false;	// it would be reasonable for this to be true, too
			}
			
			// we have a valid FSSpec, now let's make sure it's not for an alias file
			
			err = ResolveAliasFile(&theSFR->sfFile, true, &folderFlag, &wasAliasedFlag);
			if (err != noErr)
			{
				theSFR->sfGood = false;
			}
			
			// did the alias resolve to a folder?
			
			if (folderFlag  && ! theSFR->sfIsVolume)
			{
				theSFR->sfIsFolder = true;
			}
		}
	}
}

static pascal Boolean CrossPlatformFileFilter(CInfoPBPtr myCInfoPBPtr, Ptr dataPtr)
{	
	Str255 			filename ;
	OpenUserDataRecPtr data = (OpenUserDataRecPtr) dataPtr ;
	// return true if this item is invisible or a file

	Boolean visibleFlag;
	Boolean folderFlag;
	
	visibleFlag = ! (myCInfoPBPtr->hFileInfo.ioFlFndrInfo.fdFlags & kIsInvisible);
	folderFlag = (myCInfoPBPtr->hFileInfo.ioFlAttrib & 0x10);
	
	// because the semantics of the filter proc are "true means don't show
	// it" we need to invert the result that we return
	
	if ( !visibleFlag )
		return true ;
		
	if ( !folderFlag )
	{
		if ( data->numfilters > 0 )
		{
			PLstrcpy( filename ,myCInfoPBPtr->hFileInfo.ioNamePtr ) ;
			if ( filename[0] >= 4 )
			{
				for( int j = 1 ; j <= filename[0] ; j++ )
				{
					filename[j] = toupper( filename[j] ) ;
				}
				for ( int i = 0 ; i < data->numfilters ; ++i )
				{
					if ( myCInfoPBPtr->hFileInfo.ioFlFndrInfo.fdType == data->filtermactypes[i] )
						return false ;

					if ( strncmp( (char*) filename + 1 + filename[0] - 4 , 
							& data->filter[i][ strlen(data->filter[i]) - 4 ] , 4 ) == 0 )
							return false ;
				}
			}
			return true ;				
		}
	}	
		
	return false ;
}

// end wxmac

wxString wxFileSelector(const char *title,
                     const char *defaultDir, const char *defaultFileName,
                     const char *defaultExtension, const char *filter, int flags,
                     wxWindow *parent, int x, int y)
{
    // If there's a default extension specified but no filter, we create a suitable
    // filter.

    wxString filter2("");
    if ( defaultExtension && !filter )
        filter2 = wxString("*.") + wxString(defaultExtension) ;
    else if ( filter )
        filter2 = filter;

    wxString defaultDirString;
    if (defaultDir)
        defaultDirString = defaultDir;
    else
        defaultDirString = "";

    wxString defaultFilenameString;
    if (defaultFileName)
        defaultFilenameString = defaultFileName;
    else
        defaultFilenameString = "";

    wxFileDialog fileDialog(parent, title, defaultDirString, defaultFilenameString, filter2, flags, wxPoint(x, y));

    if ( fileDialog.ShowModal() == wxID_OK )
    {
        strcpy(wxBuffer, (const char *)fileDialog.GetPath());
        return wxBuffer;
    }
    else
        return wxGetEmptyString();
}

WXDLLEXPORT wxString wxFileSelectorEx(const char *title,
                       const char *defaultDir,
                       const char *defaultFileName,
                       int* defaultFilterIndex,
                       const char *filter,
                       int       flags,
                       wxWindow* parent,
                       int       x,
                       int       y)

{
    wxFileDialog fileDialog(parent, title ? title : "", defaultDir ? defaultDir : "",
        defaultFileName ? defaultFileName : "", filter ? filter : "", flags, wxPoint(x, y));

    if ( fileDialog.ShowModal() == wxID_OK )
    {
        *defaultFilterIndex = fileDialog.GetFilterIndex();
        strcpy(wxBuffer, (const char *)fileDialog.GetPath());
        return wxBuffer;
    }
    else
        return wxGetEmptyString();
}

wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
        const wxString& defaultDir, const wxString& defaultFileName, const wxString& wildCard,
        long style, const wxPoint& pos)
{
    m_message = message;
    m_dialogStyle = style;
    m_parent = parent;
    m_path = "";
    m_fileName = defaultFileName;
    m_dir = defaultDir;
    m_wildCard = wildCard;
    m_filterIndex = 1;
}

int wxFileDialog::ShowModal()
{
	if ( m_dialogStyle & wxSAVE )
	{
		StandardFileReply	reply ;
		Str255				prompt ;
		Str255				filename ;

		strcpy((char *)prompt, m_message) ;
		c2pstr((char *)prompt ) ;
	
		strcpy((char *)filename, m_fileName) ;
		c2pstr((char *)filename ) ;
		
		StandardPutFile( prompt , filename , &reply ) ;
		if ( reply.sfGood == false )
		{
			m_path = "" ;
			return wxID_CANCEL ;
		}
		else
		{
			m_path = wxMacFSSpec2UnixFilename( &reply.sfFile ) ;
			return wxID_OK ;
		}
	}
	else
	{
		OSType types = '????' ;
		Str255				prompt ;
		Str255				path ;

		strcpy((char *)prompt, m_message) ;
		c2pstr((char *)prompt ) ;
	
		strcpy((char *)path, m_path ) ;
		c2pstr((char *)path ) ;

		FileFilterYDUPP 	crossPlatformFileFilterUPP;
		StandardFileReply	reply ;
		crossPlatformFileFilterUPP = 
			NewFileFilterYDProc(CrossPlatformFileFilter);

		ExtendedOpenFile( prompt , path , m_wildCard , crossPlatformFileFilterUPP, &reply);
	
		DisposeRoutineDescriptor(crossPlatformFileFilterUPP);
		if ( reply.sfGood == false )
		{
			m_path = "" ;
			return wxID_CANCEL ;
		}
		else
		{
			m_path = wxMacFSSpec2UnixFilename( &reply.sfFile ) ;
			return wxID_OK ;
		}
	}
    return wxID_CANCEL;
}

// Generic file load/save dialog
static wxString
wxDefaultFileSelector(bool load, const char *what, const char *extension, const char *default_name, wxWindow *parent)
{
  char *ext = (char *)extension;
  
  char prompt[50];
  wxString str;
  if (load)
    str = "Load %s file";
  else
    str = "Save %s file";
  sprintf(prompt, wxGetTranslation(str), what);

  if (*ext == '.') ext++;
  char wild[60];
  sprintf(wild, "*.%s", ext);

  return wxFileSelector (prompt, NULL, default_name, ext, wild, 0, parent);
}

// Generic file load dialog
wxString
wxLoadFileSelector(const char *what, const char *extension, const char *default_name, wxWindow *parent)
{
  return wxDefaultFileSelector(TRUE, what, extension, default_name, parent);
}


// Generic file save dialog
wxString
wxSaveFileSelector(const char *what, const char *extension, const char *default_name, wxWindow *parent)
{
  return wxDefaultFileSelector(FALSE, what, extension, default_name, parent);
}