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//==============================================================================
//
// Lynkeos
//
// $Id: MyMultiPassImageEnumerator.m 585 2018-09-08 21:30:37Z j-etienne $
//
// Created by Jean-Etienne LAMIAUD on Thu Jan 30 2014.
// Copyright (c) 2014. Jean-Etienne LAMIAUD
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
//------------------------------------------------------------------------------
#include "MyMultiPassImageEnumerator.h"
@implementation MyMultiPassImageEnumerator
- (id) init
{
self = [super init];
if ( self != nil )
{
_delegate = nil;
_pass = 0; // It will be reset in superclass dedicated initializer
}
return( self );
}
- (void) reset
{
[super reset];
_pass ++;
[[NSNotificationCenter defaultCenter] postNotificationName: LynkeosEnumeratorDidStartNewPass
object: self];
}
- (u_int) pass
{
return( _pass );
}
- (void) setDelegate:(id <LynkeosMultiPassEnumeratorDelegate>)delegate
{
_delegate = delegate;
}
- (id) nextObject
{
id next;
[_lock lock];
next = [super nextObject];
if ( next == nil && _delegate != nil && [_delegate shouldPerformOneMorePass:self] )
{
next = [NSNull null];
}
[_lock unlock];
return( next );
}
@end
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