WvStreams
catiter.cc
1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2  *
3  * XPLC - Cross-Platform Lightweight Components
4  * Copyright (C) 2004, Net Integration Technologies, Inc.
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public License
8  * as published by the Free Software Foundation; either version 2.1 of
9  * the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful, but
12  * WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19  * USA
20  */
21 
22 #include <xplc/utils.h>
23 #include "catiter.h"
24 
29 
31  CategoryEntryNode* aEntries):
32  category(aCategory),
33  current(aEntries) {
34  /*
35  * Prevent the category from dying, which in turn prevents the
36  * category manager from dying (which would free the list).
37  */
38  category->addRef();
39 }
40 
42  if(current)
43  return current->entry;
44 
45  return UUID_null;
46 }
47 
49  if(current)
50  return current->str;
51 
52  return 0;
53 }
54 
56  if(current)
57  current = current->next;
58 }
59 
61  return current == 0;
62 }
63 
64 CategoryIterator::~CategoryIterator() {
65  category->release();
66 }
67 
The basic interface which is included by all other XPLC interfaces and objects.
Definition: IObject.h:65
Represents a category.
Definition: ICategory.h:36
virtual unsigned int release()=0
Indicate that you are finished using this object.
The structure underlying UUIDs.
Definition: uuid.h:94
Various utility functions, macros and templates.
#define UUID_MAP_ENTRY(iface)
Add an entry to an interface map.
Definition: utils.h:68
virtual const UUID & getUuid()
Returns the UUID of the category entry.
Definition: catiter.cc:41
virtual bool done()
Tests if the iterator is past the last item.
Definition: catiter.cc:60
#define UUID_MAP_BEGIN(component)
Start the interface map for "component".
Definition: utils.h:63
virtual unsigned int addRef()=0
Indicate you are using this object.
Allows iteration over a category.
#define UUID_MAP_END
Marks the end of an interface map.
Definition: utils.h:80
virtual const char * getString()
Returns the string associated with the category entry.
Definition: catiter.cc:48
virtual void next()
Advances to the next category entry.
Definition: catiter.cc:55