some != NULL checks

[wxWidgets.git] / src / mac / dirdlg.cpp

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

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

#include "wx/defs.h"
#include "wx/utils.h"
#include "wx/dialog.h"
#include "wx/dirdlg.h"

#include "wx/cmndata.h"

IMPLEMENT_CLASS(wxDirDialog, wxDialog)

enum {
	kSelectItem = 10, 			// select button item number
	kSFGetFolderDlgID = 250,	// dialog resource number
	kStrListID = 250,			// 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

struct UserDataRec {
	StandardFileReply	*sfrPtr;
	FSSpec				oldSelectionFSSpec;
	DialogPtr			theDlgPtr;
};
typedef struct UserDataRec
	UserDataRec, *UserDataRecPtr;

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';
}


// SetButtonName sets the name of the Select button in the dialog
//
// To do this, we need to call the Script Manager to truncate the
// label in the middle to fit the button and to merge the button
// name with the word Select (possibly followed by quotes).  Using
// the Script Manager avoids all sorts of problems internationally.
//
// buttonName is the name to appear following the word Select
// quoteFlag should be true if the name is to appear in quotes

static void SetButtonName(DialogPtr theDlgPtr, short buttonID, StringPtr buttonName,
					Boolean quoteFlag)
{
	short 	buttonType;
	Handle	buttonHandle;
	Rect	buttonRect;
	short	textWidth;
	Handle	labelHandle;
	Handle	nameHandle;
	Str15	keyStr;
	Str255	labelStr;
	OSErr	err;
	
	nameHandle = nil;
	labelHandle = nil;
	
	// get the details of the button from the dialog
	
	GetDialogItem(theDlgPtr, buttonID, &buttonType, &buttonHandle, &buttonRect);