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
|
/***************************************************************************
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()
{
foreach(PlaylistObserver *observer, m_observers)
observer->updateCurrent();
}
void Watched::dataChanged()
{
foreach(PlaylistObserver *observer, m_observers)
observer->updateData();
}
void Watched::addObserver(PlaylistObserver *observer)
{
m_observers.append(observer);
}
void Watched::removeObserver(PlaylistObserver *observer)
{
m_observers.remove(observer);
}
void Watched::clearObservers()
{
m_observers.clear();
}
Watched::~Watched()
{
foreach(PlaylistObserver *observer, m_observers)
observer->clearWatched();
}
////////////////////////////////////////////////////////////////////////////////
// PlaylistObserver implementation
////////////////////////////////////////////////////////////////////////////////
PlaylistObserver::~PlaylistObserver()
{
if(m_playlist)
m_playlist->removeObserver(this);
}
PlaylistObserver::PlaylistObserver(PlaylistInterface *playlist) :
m_playlist(playlist)
{
if(m_playlist)
playlist->addObserver(this);
}
const PlaylistInterface *PlaylistObserver::playlist() const
{
return m_playlist;
}
// vim: set et sw=4 tw=0 sta:
|