src/hbcore/image/hbframebackground.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (developer.feedback@nokia.com)
       
     6 **
       
     7 ** This file is part of the HbCore module of the UI Extensions for Mobile.
       
     8 **
       
     9 ** GNU Lesser General Public License Usage
       
    10 ** This file may be used under the terms of the GNU Lesser General Public
       
    11 ** License version 2.1 as published by the Free Software Foundation and
       
    12 ** appearing in the file LICENSE.LGPL included in the packaging of this file.
       
    13 ** Please review the following information to ensure the GNU Lesser General
       
    14 ** Public License version 2.1 requirements will be met:
       
    15 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    16 **
       
    17 ** In addition, as a special exception, Nokia gives you certain additional
       
    18 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    19 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    20 **
       
    21 ** If you have questions regarding the use of this file, please contact
       
    22 ** Nokia at developer.feedback@nokia.com.
       
    23 **
       
    24 ****************************************************************************/
       
    25 #include "hbframebackground.h"
       
    26 #include "hbframebackground_p.h"
       
    27 
       
    28 #include <QVariant>
       
    29 
       
    30 /*!
       
    31 	@stable
       
    32     @hbcore
       
    33     \class HbFrameBackground
       
    34     \brief HbFrameBackground stores the frame data.
       
    35 
       
    36     This class is a data container for frame related data. It stores data that defines the 
       
    37     frame background into single object that can be stored into QVariant.
       
    38 */
       
    39 
       
    40 // Must be initialized dynamically because QIcon cannot be constructed 
       
    41 // when static variables are constructed.
       
    42 static HbFrameBackgroundPrivate *shared_null = 0;
       
    43 
       
    44 static const int frameBackgroundMetaType = qRegisterMetaType<HbFrameBackground>();
       
    45 
       
    46 // This constructor is used for shared_null instance only
       
    47 HbFrameBackgroundPrivate::HbFrameBackgroundPrivate() :
       
    48     frameGraphicsName(),
       
    49     type(HbFrameDrawer::Undefined)
       
    50 {
       
    51     ref.ref(); // Need to do extra ref so the shared null does not get destructed
       
    52 }
       
    53 
       
    54 HbFrameBackgroundPrivate::HbFrameBackgroundPrivate(const QString &frameGraphicsName, HbFrameDrawer::FrameType type) :
       
    55     frameGraphicsName(frameGraphicsName),
       
    56     type(type)
       
    57 {
       
    58 }
       
    59 
       
    60 /*! Default constructor.
       
    61 */
       
    62 HbFrameBackground::HbFrameBackground()
       
    63 {
       
    64     // Construct shared_null if not done yet.
       
    65     if ( !shared_null ) {
       
    66         shared_null = new HbFrameBackgroundPrivate;
       
    67     }
       
    68     d = shared_null;
       
    69 }
       
    70 
       
    71 /*! Constructs a new frame background with the given \a frameGraphicsName and \a type .
       
    72 */
       
    73 HbFrameBackground::HbFrameBackground(const QString &frameGraphicsName, HbFrameDrawer::FrameType type) :
       
    74     d(new HbFrameBackgroundPrivate(frameGraphicsName, type))
       
    75 {
       
    76 }
       
    77 
       
    78 /*!
       
    79 * Copy constructs a new frame background using the \a other frame background.
       
    80 */
       
    81 HbFrameBackground::HbFrameBackground( const HbFrameBackground &other ) :
       
    82     d(other.d)
       
    83 {
       
    84 }
       
    85 
       
    86 /*!
       
    87 * Destroys the frame background.
       
    88 */
       
    89 HbFrameBackground::~HbFrameBackground()
       
    90 {
       
    91 }
       
    92 
       
    93 /*!
       
    94 * Assigns the \a other frame background to this frame background and returns a reference to
       
    95 * this frame background. Copy-on-write semantics is used, so this only does a shallow copy. 
       
    96 */
       
    97 HbFrameBackground &HbFrameBackground::operator=( const HbFrameBackground &other )
       
    98 {
       
    99     if (&other != this) {
       
   100         d = other.d;
       
   101     }
       
   102     return *this;
       
   103 }
       
   104 
       
   105 /*!
       
   106 * Equality operator. 
       
   107 */
       
   108 bool HbFrameBackground::operator==( const HbFrameBackground &other ) const
       
   109 {
       
   110     return !( *this != other );
       
   111 }
       
   112 
       
   113 /*!
       
   114 * Inequality operator. 
       
   115 */
       
   116 bool HbFrameBackground::operator!=( const HbFrameBackground &other ) const
       
   117 {
       
   118     if (d->frameGraphicsName != other.d->frameGraphicsName
       
   119         || d->frameGraphicsName.isNull() != other.d->frameGraphicsName.isNull()) {
       
   120         return true;
       
   121     }
       
   122 
       
   123     if (d->type != other.d->type) {
       
   124         return true;
       
   125     }
       
   126 
       
   127     return false;
       
   128 }
       
   129 
       
   130 /*!
       
   131 * Returns true if the frame background has been constructed with the default constructor
       
   132 * and the frame graphics name has not been set.
       
   133 */
       
   134 bool HbFrameBackground::isNull() const
       
   135 {
       
   136     return d->frameGraphicsName.isNull();
       
   137 }
       
   138 
       
   139 /*!
       
   140 * Returns the frame graphics name.
       
   141 * \sa HbFrameBackground::setFrameGraphicsName()
       
   142 */
       
   143 QString HbFrameBackground::frameGraphicsName() const
       
   144 {
       
   145     return d->frameGraphicsName;
       
   146 }
       
   147 
       
   148 /*!
       
   149 * Sets the frame graphics name. See the HbFrameDrawer class description for the file name convention for different frame parts.
       
   150 * \sa HbFrameBackground::frameGraphicsName()
       
   151 */
       
   152 void HbFrameBackground::setFrameGraphicsName(const QString &frameGraphicsName)
       
   153 {
       
   154     // Remove possible file extension
       
   155     QString nameWithoutExt = frameGraphicsName;
       
   156     int index = nameWithoutExt.lastIndexOf(QChar('.'));
       
   157     if (index>0) {
       
   158         nameWithoutExt.resize(index);
       
   159     }
       
   160 
       
   161     if (d->frameGraphicsName != nameWithoutExt
       
   162         || d->frameGraphicsName.isNull() != nameWithoutExt.isNull()) {
       
   163         d.detach();
       
   164         d->frameGraphicsName = nameWithoutExt;
       
   165     }
       
   166 }
       
   167 
       
   168 /*!
       
   169 * Returns the frame type.
       
   170 * \sa HbFrameBackground::setFrameType()
       
   171 */
       
   172 HbFrameDrawer::FrameType HbFrameBackground::frameType() const
       
   173 {
       
   174     return d->type;
       
   175 }
       
   176 
       
   177 /*!
       
   178 * Sets the frame type.
       
   179 * \sa HbFrameBackground::frameType()
       
   180 */
       
   181 void HbFrameBackground::setFrameType(HbFrameDrawer::FrameType type)
       
   182 {
       
   183     if (d->type != type) {
       
   184         d.detach();
       
   185         d->type = type;
       
   186     }
       
   187 }
       
   188 
       
   189 /*!
       
   190 * Returns the frame background as a QVariant.
       
   191 */
       
   192 HbFrameBackground::operator QVariant() const
       
   193 {
       
   194     return QVariant::fromValue(*this);
       
   195 }
       
   196 
       
   197 // End of File