libs-gui/Source/NSOpenPanel.m

/* -*- C++ -*-
   NSOpenPanel.m

   Standard open panel for opening files

   Copyright (C) 1996 Free Software Foundation, Inc.

   Author:  Scott Christley <scottc@net-community.com>
   Date: 1996
   Author:  Daniel B<EFBFBD>hringer <boehring@biomed.ruhr-uni-bochum.de>
   Date: August 1998
   Source by Daniel B<EFBFBD>hringer integrated into Scott Christley's preliminary
   implementation by Felipe A. Rodriguez <far@ix.netcom.com> 
  
   This file is part of the GNUstep GUI Library.

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
   
   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with this library; see the file COPYING.LIB.
   If not, write to the Free Software Foundation,
   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/ 

#include <gnustep/gui/config.h>
#include <string.h>
#include <Foundation/NSString.h>
#include <Foundation/NSArray.h>
#include <AppKit/NSOpenPanel.h>

// toDo:	- canChooseFiles unimplemented
//			- allowsMultipleSelection untested
//			- setCanChooseDirectories untested

static NSOpenPanel *gnustep_gui_open_panel = nil;

@implementation NSOpenPanel

//
// Class methods
//
+ (void)initialize
{
	if (self == [NSOpenPanel class])
		[self setVersion:1];								// Initial version
}

//
// Accessing the NSOpenPanel 
//
+ (NSOpenPanel *)openPanel
{
	if (!gnustep_gui_open_panel)
    	{
//      PanelLoader *pl = [PanelLoader panelLoader];
//      gnustep_gui_open_panel = [pl loadPanel: @"NSOpenPanel"];
      	gnustep_gui_open_panel = [[NSOpenPanel alloc] init];
    	}

	return gnustep_gui_open_panel;
}

//
// Instance methods
//

//
// Initialization
//
- init
{	
	self = [super init];
	[self setTitle:@"Open"];
	[self setCanChooseFiles:YES];
	multiple_select = NO;

  	return self;
}

//
// Filtering Files 
//
- (void)setAllowsMultipleSelection:(BOOL)flag
{	
	allowsMultipleSelection=flag;
	[browser setAllowsMultipleSelection:flag];
}

-(BOOL) allowsMultipleSelection 			{ return allowsMultipleSelection; }
-(void) setCanChooseDirectories:(BOOL)flag	{ canChooseDirectories = flag; }
-(BOOL) canChooseDirectories				{ return canChooseDirectories; }
-(void) setCanChooseFiles:(BOOL)flag		{ canChooseFiles = flag; }
-(BOOL) canChooseFiles						{ return canChooseFiles; }
-(NSString*) filename 						{ return [browser path]; }

//
// Querying the Chosen Files 
//
- (NSArray *)filenames
{	
	if(!allowsMultipleSelection) 
		return [NSArray arrayWithObject:[self filename]];
	else
		{	
		NSArray			*cells=[browser selectedCells];
		NSEnumerator	*cellEnum;
		id				currCell;
		NSMutableArray 	*ret = [NSMutableArray array];
		NSString		*dir=[self directory];

		for(cellEnum=[cells objectEnumerator];currCell=[cellEnum nextObject];)
			{	
			[ret addObject:[NSString 
						stringWithFormat:@"%@/%@",dir,[currCell stringValue]]];
			} 

		return ret;
		}
}

//
// Running the NSOpenPanel 
//
- (int)runModalForTypes:(NSArray *)fileTypes
{	
	return [self runModalForDirectory:[self directory] 
				 file: nil 
				 types: fileTypes];
}

- (int)runModalForDirectory:(NSString *)path 
						file:(NSString *)name
						types:(NSArray *)fileTypes
{	
	if(requiredTypes) 
		[requiredTypes autorelease];
	requiredTypes = [fileTypes retain];

	return [self runModalForDirectory:path file:name];
}

//
// Target and Action Methods 
//
- (void)ok_ORIGINAL_NOT_USED:(id)sender			// excess? fix me FAR
{
  char *sp, files[4096], *p;
  NSMutableString *m;

  if (the_filenames) [the_filenames release];
  the_filenames = [NSMutableArray array];
  // Search for space
  strcpy(files, [file_name cString]);
  sp = strchr(files, ' ');
  if (sp == NULL)
    {
      // No space then only one file selected
      [the_filenames addObject:file_name];
      sp = strrchr(files, '\\');
      sp++;
      *sp = '\0';
      directory = [NSString stringWithCString:files];
    }
  else
    {
      // Multiple files selected
      *sp = '\0';
      directory = [NSString stringWithCString:files];
      p = sp + 1;
      sp = strchr(p, ' ');
      while (sp != NULL)
	{
	  *sp = '\0';
	  m = [NSMutableString stringWithCString:files];
	  [m appendString:@"\\"];
	  [m appendString:[NSString stringWithCString:p]];
	  [the_filenames addObject:m];
	  p = sp + 1;
	  sp = strchr(p, ' ');
	}
      if (strchr(p, '\0'))
	{
	  m = [NSMutableString stringWithCString:files];
	  [m appendString:@"\\"];
	  [m appendString:[NSString stringWithCString:p]];
	  [the_filenames addObject:m];
	}
    }
}

//
// NSCoding protocol
//
- (void)encodeWithCoder:aCoder
{
  [super encodeWithCoder:aCoder];

  [aCoder encodeObject: the_filenames];
  [aCoder encodeValueOfObjCType: @encode(BOOL) at: &multiple_select];
  [aCoder encodeValueOfObjCType: @encode(BOOL) at: &choose_dir];
  [aCoder encodeValueOfObjCType: @encode(BOOL) at: &choose_file];
}

- initWithCoder:aDecoder
{
  [super initWithCoder:aDecoder];

  the_filenames = [aDecoder decodeObject];
  [aDecoder decodeValueOfObjCType: @encode(BOOL) at: &multiple_select];
  [aDecoder decodeValueOfObjCType: @encode(BOOL) at: &choose_dir];
  [aDecoder decodeValueOfObjCType: @encode(BOOL) at: &choose_file];

  return self;
}

@end