mpviewplugins/mpsettingsviewplugin/tsrc/unittest_mpsettingsaudioeffectswidget/stub/src/mpenginefactory.cpp
author hgs
Fri, 23 Jul 2010 17:31:12 -0500
changeset 45 612c4815aebe
child 47 4cc1412daed0
permissions -rw-r--r--
201029
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
45
hgs
parents:
diff changeset
     1
/*
hgs
parents:
diff changeset
     2
* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
hgs
parents:
diff changeset
     3
* All rights reserved.
hgs
parents:
diff changeset
     4
* This component and the accompanying materials are made available
hgs
parents:
diff changeset
     5
* under the terms of "Eclipse Public License v1.0"
hgs
parents:
diff changeset
     6
* which accompanies this distribution, and is available
hgs
parents:
diff changeset
     7
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
hgs
parents:
diff changeset
     8
*
hgs
parents:
diff changeset
     9
* Initial Contributors:
hgs
parents:
diff changeset
    10
* Nokia Corporation - initial contribution.
hgs
parents:
diff changeset
    11
*
hgs
parents:
diff changeset
    12
* Contributors:
hgs
parents:
diff changeset
    13
*
hgs
parents:
diff changeset
    14
* Description: mp engine factory.
hgs
parents:
diff changeset
    15
*
hgs
parents:
diff changeset
    16
*/
hgs
parents:
diff changeset
    17
hgs
parents:
diff changeset
    18
#include "mpengine.h"
hgs
parents:
diff changeset
    19
#include "mpenginefactory.h"
hgs
parents:
diff changeset
    20
#include "mptrace.h"
hgs
parents:
diff changeset
    21
hgs
parents:
diff changeset
    22
/*!
hgs
parents:
diff changeset
    23
    \class MpEngineFactory
hgs
parents:
diff changeset
    24
    \brief Music Player engine factory.
hgs
parents:
diff changeset
    25
hgs
parents:
diff changeset
    26
    MP Engine factory is responsible to create and mantain ownership of MP engines.
hgs
parents:
diff changeset
    27
*/
hgs
parents:
diff changeset
    28
hgs
parents:
diff changeset
    29
/*!
hgs
parents:
diff changeset
    30
 Constructs music player engine factory.
hgs
parents:
diff changeset
    31
 */
hgs
parents:
diff changeset
    32
MpEngineFactory::MpEngineFactory()
hgs
parents:
diff changeset
    33
    : mSharedEngine( 0 )
hgs
parents:
diff changeset
    34
{
hgs
parents:
diff changeset
    35
    TX_ENTRY_ARGS("Stub")
hgs
parents:
diff changeset
    36
}
hgs
parents:
diff changeset
    37
hgs
parents:
diff changeset
    38
/*!
hgs
parents:
diff changeset
    39
 Destructs music player engine factory.
hgs
parents:
diff changeset
    40
 */
hgs
parents:
diff changeset
    41
MpEngineFactory::~MpEngineFactory()
hgs
parents:
diff changeset
    42
{
hgs
parents:
diff changeset
    43
}
hgs
parents:
diff changeset
    44
hgs
parents:
diff changeset
    45
/*!
hgs
parents:
diff changeset
    46
 Returns the singleton instance of music player engine factory.
hgs
parents:
diff changeset
    47
 */
hgs
parents:
diff changeset
    48
MpEngineFactory * MpEngineFactory::instance()
hgs
parents:
diff changeset
    49
{
hgs
parents:
diff changeset
    50
    static MpEngineFactory instance;
hgs
parents:
diff changeset
    51
    return &instance;
hgs
parents:
diff changeset
    52
}
hgs
parents:
diff changeset
    53
hgs
parents:
diff changeset
    54
/*!
hgs
parents:
diff changeset
    55
 Returns an instance to an engine with \a hostUid, and \a mode, if the shared engine is 
hgs
parents:
diff changeset
    56
 already created parameters are ignored.
hgs
parents:
diff changeset
    57
 */
hgs
parents:
diff changeset
    58
MpEngine *MpEngineFactory::createSharedEngine( TUid hostUid , MpEngine::EngineMode mode )
hgs
parents:
diff changeset
    59
{
hgs
parents:
diff changeset
    60
    Q_UNUSED( hostUid );
hgs
parents:
diff changeset
    61
    Q_UNUSED( mode );
hgs
parents:
diff changeset
    62
    if ( !instance()->mSharedEngine ) {
hgs
parents:
diff changeset
    63
        instance()->mSharedEngine = new MpEngine();
hgs
parents:
diff changeset
    64
    }
hgs
parents:
diff changeset
    65
    return instance()->mSharedEngine;
hgs
parents:
diff changeset
    66
}
hgs
parents:
diff changeset
    67
hgs
parents:
diff changeset
    68
/*!
hgs
parents:
diff changeset
    69
 Returns an instance to the current shared engine previously created with createEngine().
hgs
parents:
diff changeset
    70
 */
hgs
parents:
diff changeset
    71
MpEngine *MpEngineFactory::sharedEngine()
hgs
parents:
diff changeset
    72
{
hgs
parents:
diff changeset
    73
    return instance()->mSharedEngine;
hgs
parents:
diff changeset
    74
}
hgs
parents:
diff changeset
    75
hgs
parents:
diff changeset
    76
/*!
hgs
parents:
diff changeset
    77
 Closes all engines created on this process.
hgs
parents:
diff changeset
    78
 */
hgs
parents:
diff changeset
    79
void MpEngineFactory::close()
hgs
parents:
diff changeset
    80
{
hgs
parents:
diff changeset
    81
    if ( instance()->mSharedEngine ) {
hgs
parents:
diff changeset
    82
        delete instance()->mSharedEngine;
hgs
parents:
diff changeset
    83
        instance()->mSharedEngine = 0;
hgs
parents:
diff changeset
    84
        
hgs
parents:
diff changeset
    85
    }
hgs
parents:
diff changeset
    86
}