blob: e2329a99dd1176e0b097e413dd35f2cb759fd7a1 (
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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
/* This file is part of the KDE project
Copyright (C) 2007 Matthias Kretz <kretz@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) version 3, or any
later version accepted by the membership of KDE e.V. (or its
successor approved by the membership of KDE e.V.), Nokia Corporation
(or its successors, if any) and the KDE Free Qt Foundation, which shall
act as a proxy defined in Section 6 of version 3 of the license.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PHONON_MEDIANODE_P_H
#define PHONON_MEDIANODE_P_H
#include <QtCore/QtGlobal>
#include <QtCore/QList>
#include <QtCore/QObject>
#include "path.h"
#include "phonon_export.h"
QT_BEGIN_NAMESPACE
class QObject;
namespace Phonon
{
class MediaNode;
class MediaNodeDestructionHandler;
class PHONON_EXPORT MediaNodePrivate
{
Q_DECLARE_PUBLIC(MediaNode)
friend class AudioOutputPrivate;
friend class FactoryPrivate;
protected:
enum CastId {
MediaNodePrivateType,
AbstractAudioOutputPrivateType,
AudioOutputType
};
public:
/**
* Returns the backend object. If the object does not exist it tries to
* create it before returning.
*
* \return the Iface object, might return \c 0
*/
QObject *backendObject();
const CastId castId;
protected:
MediaNodePrivate(CastId _castId = MediaNodePrivateType);
virtual ~MediaNodePrivate();
/**
* \internal
* This method cleanly deletes the Iface object. It is called on
* destruction and before a backend change.
*/
void deleteBackendObject();
virtual bool aboutToDeleteBackendObject() = 0;
/**
* \internal
* Creates the Iface object belonging to this class. For most cases the
* implementation is
* \code
* Q_Q(ClassName);
* m_iface = Factory::createClassName(this);
* return m_iface;
* \endcode
*
* This function should not be called except from slotCreateIface.
*
* \see slotCreateIface
*/
virtual void createBackendObject() = 0;
public:
/**
* \internal
* This class has its own destroyed signal since some cleanup calls
* need the pointer to the backend object intact. The
* QObject::destroyed signals comes after the backend object was
* deleted.
*
* As this class cannot derive from QObject a simple handler
* interface is used.
*/
void addDestructionHandler(MediaNodeDestructionHandler *handler);
/**
* \internal
* This class has its own destroyed signal since some cleanup calls
* need the pointer to the backend object intact. The
* QObject::destroyed signals comes after the backend object was
* deleted.
*
* As this class cannot derive from QObject a simple handler
* interface is used.
*/
void removeDestructionHandler(MediaNodeDestructionHandler *handler);
void addOutputPath(const Path &);
void addInputPath(const Path &);
void removeOutputPath(const Path &);
void removeInputPath(const Path &);
const QObject *qObject() const { return const_cast<MediaNodePrivate *>(this)->qObject(); }
virtual QObject *qObject() { return 0; }
protected:
MediaNode *q_ptr;
public:
QObject *m_backendObject;
protected:
QList<Path> outputPaths;
QList<Path> inputPaths;
private:
QList<MediaNodeDestructionHandler *> handlers;
Q_DISABLE_COPY(MediaNodePrivate)
};
} // namespace Phonon
QT_END_NAMESPACE
#endif // PHONON_MEDIANODE_P_H
|
