summaryrefslogtreecommitdiffstats
path: root/juk/playlistinterface.cpp
blob: 9ec550a2584badef7e8a2a12d31ed8e9c11996a7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
/***************************************************************************
    copyright            : (C) 2004 by Scott Wheeler
    email                : wheeler@kde.org
***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/

#include "playlistinterface.h"

////////////////////////////////////////////////////////////////////////////////
// Watched implementation
////////////////////////////////////////////////////////////////////////////////

void Watched::currentChanged()
{
    for(QValueList<PlaylistObserver *>::ConstIterator it = m_observers.begin();
	it != m_observers.end();
	++it)
    {
        (*it)->updateCurrent();
    }    
}

void Watched::dataChanged()
{
    for(QValueList<PlaylistObserver *>::ConstIterator it = m_observers.begin();
	it != m_observers.end();
	++it)
    {
        (*it)->updateData();
    }    
}

void Watched::addObserver(PlaylistObserver *observer)
{
    m_observers.append(observer);
}

void Watched::removeObserver(PlaylistObserver *observer)
{
    m_observers.remove(observer);
}

Watched::~Watched()
{
    for(QValueList<PlaylistObserver *>::Iterator it = m_observers.begin();
        it != m_observers.end();
        ++it)
    {
        (*it)->clearWatched();
    }
}

////////////////////////////////////////////////////////////////////////////////
// PlaylistObserver implementation
////////////////////////////////////////////////////////////////////////////////

PlaylistObserver::~PlaylistObserver()
{
    if(m_playlist)
        m_playlist->removeObserver(this);
}

PlaylistObserver::PlaylistObserver(PlaylistInterface *playlist) :
    m_playlist(playlist)
{
    playlist->addObserver(this);
}

const PlaylistInterface *PlaylistObserver::playlist() const
{
    return m_playlist;
}