src/declarative/qml/qdeclarativeintegercache.cpp
changeset 30 5dc02b23752f
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29:b72c6db6890b 30:5dc02b23752f
       
     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the QtDeclarative module of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
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    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
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    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include "private/qdeclarativeintegercache_p.h"
       
    43 
       
    44 #include "private/qdeclarativeengine_p.h"
       
    45 #include "private/qdeclarativemetatype_p.h"
       
    46 
       
    47 QT_BEGIN_NAMESPACE
       
    48 
       
    49 QDeclarativeIntegerCache::QDeclarativeIntegerCache(QDeclarativeEngine *e)
       
    50 : QDeclarativeCleanup(e), engine(e)
       
    51 {
       
    52 }
       
    53 
       
    54 QDeclarativeIntegerCache::~QDeclarativeIntegerCache()
       
    55 {
       
    56     clear();
       
    57 }
       
    58 
       
    59 void QDeclarativeIntegerCache::clear()
       
    60 {
       
    61     qDeleteAll(stringCache);
       
    62     stringCache.clear();
       
    63     identifierCache.clear();
       
    64     engine = 0;
       
    65 }
       
    66 
       
    67 QString QDeclarativeIntegerCache::findId(int value) const
       
    68 {
       
    69     for (StringCache::ConstIterator iter = stringCache.begin();
       
    70             iter != stringCache.end(); ++iter) {
       
    71         if (iter.value() && iter.value()->value == value)
       
    72             return iter.key();
       
    73     }
       
    74     return QString();
       
    75 }
       
    76 
       
    77 void QDeclarativeIntegerCache::add(const QString &id, int value)
       
    78 {
       
    79     Q_ASSERT(!stringCache.contains(id));
       
    80 
       
    81     QDeclarativeEnginePrivate *enginePriv = QDeclarativeEnginePrivate::get(engine);
       
    82 
       
    83     // ### use contextClass
       
    84     Data *d = new Data(enginePriv->objectClass->createPersistentIdentifier(id), value);
       
    85 
       
    86     stringCache.insert(id, d);
       
    87     identifierCache.insert(d->identifier, d);
       
    88 }
       
    89 
       
    90 int QDeclarativeIntegerCache::value(const QString &id)
       
    91 {
       
    92     Data *d = stringCache.value(id);
       
    93     return d?d->value:-1;
       
    94 }
       
    95 
       
    96 QT_END_NAMESPACE