src/hbcore/utils/hbsmileytheme.cpp
author hgs
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/****************************************************************************
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**
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** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (developer.feedback@nokia.com)
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**
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** This file is part of the HbCore module of the UI Extensions for Mobile.
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**
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this file.
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** Please review the following information to ensure the GNU Lesser General
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** Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights.  These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at developer.feedback@nokia.com.
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**
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****************************************************************************/
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#include "hbsmileytheme.h"
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#include "hbsmileythemeparser_p.h"
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#include <QVariant>
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#include <QSharedData>
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#include <QHash>
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#include <QSet>
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class HbSmileyThemePrivate : public QSharedData
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{
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public:
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    HbSmileyThemePrivate();
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    HbSmileyThemePrivate(const HbSmileyThemePrivate &other);
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    ~HbSmileyThemePrivate();
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public: // data
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    QHash<QString,QSet<QString> > smileyToPatterns;
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    QHash <QString, QString> patternToSmiley;
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    mutable QRegExp regexp;
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    mutable bool dirty;
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};
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HbSmileyThemePrivate::HbSmileyThemePrivate()
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{
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}
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HbSmileyThemePrivate::HbSmileyThemePrivate(const HbSmileyThemePrivate &other) : QSharedData(other),
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        smileyToPatterns(other.smileyToPatterns),
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        patternToSmiley(other.patternToSmiley),
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        dirty(true)
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{
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}
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HbSmileyThemePrivate::~HbSmileyThemePrivate()
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{
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}
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/*!
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    @beta
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    @hbcore
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    \class HbSmileyTheme
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    \brief HbSmileyTheme is container class for defining a smiley theme.
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    Smiley is a sequence of keyboard characters used to represent a person's mood or emotion, especially :) or :-)
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    or other smiling depiction. Smileys are also represented by graphics so called emoticons.
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    In HbSmileyTheme \a smiley refers to emoticons and \a pattern refers to character sequence representation of a smiley.
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    In a smiley theme each smiley is associated with one or multiple patterns. Each smiley is identified by a string that
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    is the file name of the graphics file representing the corresponding emoticon.
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    This class implements copy-on-write semantics, so copy constructor and assignment operator
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    only perform shallow copy and are fast. A deep copy is done if the theme properties are changed.
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    Brief example of how to create a smiley themes and use it.
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    Example usage:
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    \dontinclude ultimatecodesnippet/ultimatecodesnippet.cpp
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    \skip Start of snippet 46
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    \until End of snippet 46
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    Smiley themes can be loaded from smiley theme (.sml) files.
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    Example usage:
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    \dontinclude ultimatecodesnippet/ultimatecodesnippet.cpp
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    \skip Start of snippet 47
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    \until End of snippet 47
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    Here is an example of a smiley theme file describing the file syntax.
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    \include unittest_hbsmileytheme/my_smileys_theme.sml
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    \sa HbAbstractEdit
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*/
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/*!
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* Default constructor. Constructs a null smiley theme.
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*
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*  \sa isNull()
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*/
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HbSmileyTheme::HbSmileyTheme()
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{
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    d = new HbSmileyThemePrivate();
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}
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/*!
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* Constructs a smiley theme from a smiley theme definition file.
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* If the file does not exist or is of an unknown format, the smiley theme becomes a null theme.
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*
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*  \sa isNull() load()
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*/
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HbSmileyTheme::HbSmileyTheme(const QString &fileName)
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{
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    d = new HbSmileyThemePrivate();
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    load(fileName);
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}
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/*!
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*   Constructs a smiley theme that is a copy of the given smiley theme \a other.
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*/
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HbSmileyTheme::HbSmileyTheme(const HbSmileyTheme &other) : d(other.d)
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{
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}
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/*!
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*   Assigns the given smiley theme \a other to this smiley theme and returns a reference
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*   to this smiley theme.
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*
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*   \sa HbSmileyTheme()
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*/
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HbSmileyTheme &HbSmileyTheme::operator=(const HbSmileyTheme &other)
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{
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    if (&other != this) {
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        d = other.d;
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    }
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    return *this;
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}
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/*!
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* Destroys the smiley theme.
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*/
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HbSmileyTheme::~HbSmileyTheme()
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{
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}
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/*!
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* Loads a smiley theme from a smiley theme definition file
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* Returns true if the smiley theme was successfully loaded; otherwise returns false.
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*/
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bool HbSmileyTheme::load (const QString &fileName)
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{
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    HbSmileyTheme tmpTheme;
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    HbSmileyThemeParser parser;
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    bool ret = parser.parseDefinitionFile(fileName,tmpTheme);
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    if (ret) {
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        *this = tmpTheme;
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    }
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    d->dirty = true;
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0
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    return ret;
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}
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/*!
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* Returns true if the smiley theme doesn't contain any smileys.
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* This is the case when the smiley theme is default constructed.
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*/
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bool HbSmileyTheme::isNull() const
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{
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    return d->smileyToPatterns.isEmpty();
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}
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/*!
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* Inserts a smiley to the smiley theme with a given pattern.
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* \a smiley identifies smiley and represents the icon name of the smiley.
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* It can be any name that is valid for an icon name for HbIcon.
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*
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* \a pattern is a textual representation of the smiley.
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* If the smiley already exists with \a smiley in the theme then \a pattern will be
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* an additional textual representation for the smiley.
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*
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* \sa remove() replace()
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*/
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void HbSmileyTheme::insert(const QString &smiley, const QString &pattern)
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{
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    if (!smiley.isEmpty() && !pattern.isEmpty()) {
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        d.detach();
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        QSet<QString> patterns = d->smileyToPatterns.value(smiley);
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        patterns << pattern;
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        d->smileyToPatterns[smiley] = patterns;
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        d->patternToSmiley[pattern] = smiley;
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        d->dirty = true;
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    }    
0
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}
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/*!
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* Inserts a smiley to the smiley theme with a given pattern list.
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* \a smiley identifies smiley and represents the icon name of the smiley.
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* It can be any name that is valid for an icon name for HbIcon.
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*
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*
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* \a patterns is a list of textual representation of the smiley.
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* If the smiley already exists with \a smiley in the theme then \a pattern list will be
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* additional textual representations for the smiley.
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*
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* \sa remove() replace()
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*/
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void HbSmileyTheme::insert(const QString &smiley, const QStringList &patterns)
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{
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    foreach(QString pattern, patterns) {
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        insert(smiley,pattern);
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    }
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}
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/*!
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* Replaces the smiley patterns for \a smiley.
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* This is equivalent to calling remove(smiley) and subsequently insert(smiley,patterns).
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*
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* \sa remove() insert()
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*/
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void HbSmileyTheme::replace(const QString &smiley, const QStringList &patterns)
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{
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    remove(smiley);
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    insert(smiley,patterns);
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}
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/*!
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* Replaces the smiley patterns for \a smiley with a single \a pattern.
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* This is equivalent to calling remove(smiley) and subsequently insert(smiley,pattern).
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*
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*
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* \sa remove() insert()
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*/
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void HbSmileyTheme::replace(const QString &smiley, const QString &pattern)
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{
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    remove(smiley);
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    insert(smiley,pattern);
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}
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/*!
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* Removes \a smiley from the smiley theme along with its associated patterns.
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*
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* \sa insert() replace() removePattern()
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*/
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void HbSmileyTheme::remove(const QString &smiley)
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{
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    QSet<QString> tmpPatterns = d->smileyToPatterns.value(smiley);
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    if (!tmpPatterns.isEmpty()) {
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        d.detach();
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        d->smileyToPatterns.remove(smiley);
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        foreach(QString pattern, tmpPatterns) {
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            d->patternToSmiley.remove(pattern);
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        }
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        d->dirty = true;
0
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    }
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}
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/*!
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* Removes \a pattern from the theme.
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*
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*
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* \sa insert() replace() remove()
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*/
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void HbSmileyTheme::removePattern(const QString &pattern)
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{
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    QString smiley = d->patternToSmiley.value(pattern);
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    if (!smiley.isEmpty()) {
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        QSet<QString> tmpPatterns = d->smileyToPatterns.value(smiley);
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        if (!tmpPatterns.isEmpty()) {
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            tmpPatterns.remove(pattern);
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            d.detach();
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            if (tmpPatterns.isEmpty()) {
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                d->smileyToPatterns.remove(smiley);
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            } else {
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                d->smileyToPatterns[smiley] = tmpPatterns;
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            }
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            d->patternToSmiley.remove(pattern);
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            d->dirty = true;
0
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        }
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    }
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}
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/*!
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*
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* Remove all smileys from the theme and sets the smiley theme to the same state as
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* when default constructed.
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*
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* \sa isNull()
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*/
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void HbSmileyTheme::clear()
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{
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    if (!isNull()) {
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        d.detach();
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        d->smileyToPatterns.clear();
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        d->patternToSmiley.clear();
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        d->dirty = true;
0
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    }
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}
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/*!
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* Returns an existing smiley from the smiley theme for a given \a pattern
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* If the smiley doesn't exist it returns a null string.
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*
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* \sa smileys()
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*/
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QString HbSmileyTheme::smiley(const QString &pattern) const
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{
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    return d->patternToSmiley.value(pattern);
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}
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   324
/*!
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* Returns the existing smileys from the smiley theme.
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*
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* \sa patterns()
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*/
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QStringList HbSmileyTheme::smileys() const
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{
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    return d->smileyToPatterns.keys();
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}
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   333
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   334
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   335
/*!
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   336
* Returns the currently associated textual patterns for \a smiley.
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   337
*
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   338
* \sa smileys()
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   339
*/
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diff changeset
   340
QStringList HbSmileyTheme::patterns(const QString &smiley) const
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{
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   342
    QSet<QString> tmpPatterns = d->smileyToPatterns.value(smiley);
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    return tmpPatterns.toList();
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}
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   346
/*!
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   347
* Convenience method.
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   348
* Returns the textual patterns for all the smileys in the theme.
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*
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   350
* \sa smileys()
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*/
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   352
QStringList HbSmileyTheme::patterns() const
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{
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   354
    return d->patternToSmiley.keys();
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}
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34
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/*!
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   358
* Returns the regular expression for matching the smiley patterns from the theme.
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diff changeset
   359
*
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   360
* \sa patterns()
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diff changeset
   361
*/
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diff changeset
   362
const QRegExp& HbSmileyTheme::regExp() const
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   363
{
hgs
parents: 0
diff changeset
   364
    if (d->dirty) {
hgs
parents: 0
diff changeset
   365
        QString regexpStr;
hgs
parents: 0
diff changeset
   366
        foreach (QString pattern, patterns()) {
hgs
parents: 0
diff changeset
   367
            regexpStr += QRegExp::escape(pattern) + "|";
hgs
parents: 0
diff changeset
   368
        }
hgs
parents: 0
diff changeset
   369
        regexpStr.remove(regexpStr.count()-1, 1);
hgs
parents: 0
diff changeset
   370
hgs
parents: 0
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   371
        d->regexp.setPattern(regexpStr);
hgs
parents: 0
diff changeset
   372
        d->dirty = false;
hgs
parents: 0
diff changeset
   373
    }
hgs
parents: 0
diff changeset
   374
hgs
parents: 0
diff changeset
   375
    return d->regexp;
hgs
parents: 0
diff changeset
   376
}
0
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   377
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   378
/*!
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   379
* Returns the smiley theme as a QVariant.
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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   380
*/
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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   381
HbSmileyTheme::operator QVariant() const
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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{
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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   383
    return QVariant::fromValue(*this);
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   384
}
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385