1 | /* This file is part of the KDE project |
2 | Copyright (C) 2005-2007 Matthias Kretz <kretz@kde.org> |
3 | |
4 | This library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) version 3, or any |
8 | later version accepted by the membership of KDE e.V. (or its |
9 | successor approved by the membership of KDE e.V.), Nokia Corporation |
10 | (or its successors, if any) and the KDE Free Qt Foundation, which shall |
11 | act as a proxy defined in Section 6 of version 3 of the license. |
12 | |
13 | This library is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
16 | Lesser General Public License for more details. |
17 | |
18 | You should have received a copy of the GNU Lesser General Public |
19 | License along with this library. If not, see <http://www.gnu.org/licenses/>. |
20 | |
21 | */ |
22 | #include "effect.h" |
23 | #include "effect_p.h" |
24 | #include "effectparameter.h" |
25 | #include "effectinterface.h" |
26 | #include "factory_p.h" |
27 | |
28 | #define PHONON_INTERFACENAME EffectInterface |
29 | |
30 | #ifndef QT_NO_PHONON_EFFECT |
31 | |
32 | namespace Phonon |
33 | { |
34 | Effect::~Effect() |
35 | { |
36 | } |
37 | |
38 | Effect::Effect(const EffectDescription &description, QObject *parent) |
39 | : QObject(parent), MediaNode(*new EffectPrivate) |
40 | { |
41 | P_D(Effect); |
42 | d->description = description; |
43 | d->createBackendObject(); |
44 | } |
45 | |
46 | Effect::Effect(EffectPrivate &dd, QObject *parent) |
47 | : QObject(parent), MediaNode(dd) |
48 | { |
49 | } |
50 | |
51 | void EffectPrivate::createBackendObject() |
52 | { |
53 | if (m_backendObject) |
54 | return; |
55 | P_Q(Effect); |
56 | m_backendObject = Factory::createEffect(effectId: description.index(), parent: q); |
57 | if (m_backendObject) { |
58 | setupBackendObject(); |
59 | } |
60 | } |
61 | |
62 | //X Effect::Type Effect::type() const |
63 | //X { |
64 | //X P_D(const Effect); |
65 | //X return d->type; |
66 | //X } |
67 | //X |
68 | EffectDescription Effect::description() const |
69 | { |
70 | P_D(const Effect); |
71 | return d->description; |
72 | } |
73 | |
74 | QList<EffectParameter> Effect::parameters() const |
75 | { |
76 | P_D(const Effect); |
77 | // there should be an iface object, but better be safe for those backend |
78 | // switching corner-cases: when the backend switches the new backend might |
79 | // not support this effect -> no iface object |
80 | if (d->m_backendObject) { |
81 | return INTERFACE_CALL(parameters()); |
82 | } |
83 | return QList<EffectParameter>(); |
84 | } |
85 | |
86 | QVariant Effect::parameterValue(const EffectParameter ¶m) const |
87 | { |
88 | P_D(const Effect); |
89 | if (!d->m_backendObject) { |
90 | return d->parameterValues[param]; |
91 | } |
92 | return INTERFACE_CALL(parameterValue(param)); |
93 | } |
94 | |
95 | void Effect::setParameterValue(const EffectParameter ¶m, const QVariant &newValue) |
96 | { |
97 | P_D(Effect); |
98 | d->parameterValues[param] = newValue; |
99 | if (d->backendObject()) { |
100 | INTERFACE_CALL(setParameterValue(param, newValue)); |
101 | } |
102 | } |
103 | |
104 | bool EffectPrivate::aboutToDeleteBackendObject() |
105 | { |
106 | if (m_backendObject) { |
107 | const QList<EffectParameter> parameters = pINTERFACE_CALL(parameters()); |
108 | for (int i = 0; i < parameters.count(); ++i) { |
109 | const EffectParameter &p = parameters.at(i); |
110 | parameterValues[p] = pINTERFACE_CALL(parameterValue(p)); |
111 | } |
112 | } |
113 | return true; |
114 | } |
115 | |
116 | void EffectPrivate::setupBackendObject() |
117 | { |
118 | Q_ASSERT(m_backendObject); |
119 | |
120 | // set up attributes |
121 | const QList<EffectParameter> parameters = pINTERFACE_CALL(parameters()); |
122 | for (int i = 0; i < parameters.count(); ++i) { |
123 | const EffectParameter &p = parameters.at(i); |
124 | pINTERFACE_CALL(setParameterValue(p, parameterValues[p])); |
125 | } |
126 | } |
127 | |
128 | } //namespace Phonon |
129 | |
130 | #endif //QT_NO_PHONON_EFFECT |
131 | |
132 | #include "moc_effect.cpp" |
133 | |
134 | // vim: sw=4 ts=4 tw=80 |
135 | |