source: projects/synaptic/trunk/common/rpackagelistactor.h @ 280

Revision 280, 1.7 KB checked in by yasumichi, 13 years ago (diff)

first import

Line 
1/* rcacheactor.h
2 *
3 * Copyright (c) 2003 Michael Vogt <mvo@debian.org>
4 *
5 * Author: Michael Vogt <mvo@debian.org>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of the
10 * License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20 * USA
21 */
22
23#ifndef RPACKAGELISTACTOR_H
24#define RPACKAGELISTACTOR_H
25
26#include "rpackagelister.h"
27#include <iostream>
28
29class RPackageListActor : public RPackageObserver {
30
31   public:
32
33   enum listEvent {
34      PKG_ADDED,
35      PKG_REMOVED
36   };
37
38   protected:
39
40   RPackageLister *_lister;
41   vector<RPackage *> _lastDisplayList;
42
43   public:
44
45   virtual void run(vector<RPackage *> &List, int listEvent) = 0;
46
47   virtual void notifyPreFilteredChange() {
48      updateState();
49   };
50
51   virtual void notifyPostFilteredChange();
52   virtual void notifyChange(RPackage *pkg) {};
53
54   virtual void updateState() {
55      _lastDisplayList = _lister->getPackages();
56   };
57
58   RPackageListActor(RPackageLister *lister)
59         : _lister(lister) {
60      _lister->registerObserver(this);
61   };
62
63   virtual ~RPackageListActor() {
64      _lister->unregisterObserver(this);
65   };
66};
67
68
69#endif
70
71// vim:sts=3:sw=3
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