author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 19 Apr 2010 14:40:06 +0300 | |
changeset 0 | 89c329efa980 |
child 1 | e48454f237ca |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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#include <QBrush> |
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#include <QColor> |
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#include <QtCore> |
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#include <hbicon.h> |
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#include <hbnamespace.h> |
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#include <hgwidgets/hgwidgets.h> |
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#include "hgwidgettestdatamodel.h" |
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#include "hgwidgettestalbumartmanager.h" |
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#include "trace.h" |
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typedef QPair<int, int> Range; |
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typedef QList<Range > RangeList; |
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/*! |
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\class HgWidgetTestDataModel |
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\brief Music Player collection data model. |
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Collection data model implements the interface specified by HbAbstractDataModel, |
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which defines the standard interface that item models must use to be able to |
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interoperate with other components in the model/view architecture. |
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Every item of data that can be accessed via a model has an associated model |
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index. |
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|
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Each item has a number of data elements associated with it and they can be |
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retrieved by specifying a role (see Qt::ItemDataRole) to the model's data |
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returned by itemData() function. |
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\sa HbAbstractDataModel |
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*/ |
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/*! |
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Constructs the collection data model. |
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*/ |
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HgWidgetTestDataModel::HgWidgetTestDataModel(QObject *parent) |
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: QAbstractListModel(parent), |
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mCachingInProgress(false), |
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mImageType(TypeQImage), |
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mDefaultIcon((":/images/default.svg")), |
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mUseLowResImages(false) |
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{ |
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FUNC_LOG; |
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mAlbumArtManager = new HgWidgetTestAlbumArtManager; |
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connect( mAlbumArtManager, SIGNAL(albumArtReady(int)), this, SLOT(updateAlbumArt(int)) ); |
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connect( mAlbumArtManager, SIGNAL(albumCacheReady()), this, SLOT(albumCacheReady()) ); |
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init(); |
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} |
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/*! |
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Destructs the collection data model. |
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*/ |
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HgWidgetTestDataModel::~HgWidgetTestDataModel() |
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{ |
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FUNC_LOG; |
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disconnect( mAlbumArtManager, SIGNAL(albumArtReady(int)), this, SLOT(updateAlbumArt(int)) ); |
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disconnect( mAlbumArtManager, SIGNAL(albumCacheReady()), this, SLOT(albumCacheReady()) ); |
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delete mAlbumArtManager; |
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} |
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void HgWidgetTestDataModel::setThumbnailSize(ThumbnailManager::ThumbnailSize size) |
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{ |
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mAlbumArtManager->setThumbnailSize(size); |
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} |
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void HgWidgetTestDataModel::init() |
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{ |
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FUNC_LOG; |
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// Read all .jpg image paths from the c:/data/images folder |
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QDir dir; |
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dir.setFilter(QDir::Files | QDir:: Dirs); |
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#ifdef __WINS__ |
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dir.setPath(QString("c:/data/images")); |
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#else |
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dir.setPath(QString("f:/data/images")); |
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#endif |
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QFileInfoList list = dir.entryInfoList(); |
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for (int i = 0; i < list.size(); ++i){ |
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QFileInfo fileInfo = list.at(i); |
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if (fileInfo.isFile()){ |
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QString s = fileInfo.filePath(); |
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if (s.indexOf(QString(".jpg"),0,Qt::CaseInsensitive)>0){ |
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mFiles.append(s); |
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mVisibility.append(true); |
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107 |
} |
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108 |
} |
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109 |
} |
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|
110 |
|
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111 |
QPixmap pixmap(":/images/default.svg"); |
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112 |
if (!pixmap.isNull()){ |
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113 |
mQIcon = QIcon(pixmap); |
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114 |
if (!mQIcon.isNull()){ |
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mHbIcon = HbIcon(mQIcon); |
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} |
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117 |
} |
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118 |
} |
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|
119 |
|
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120 |
/*! |
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121 |
Returns the number of rows under the given \a parent. |
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122 |
|
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123 |
View will request for the row count immediately after a model is set. |
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124 |
To prevent it from reading data while caching the album art for the first |
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125 |
screen, return row count as zero. |
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126 |
|
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127 |
\reimp |
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*/ |
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int HgWidgetTestDataModel::rowCount( const QModelIndex &parent ) const |
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130 |
{ |
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131 |
Q_UNUSED(parent); |
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return mFiles.count(); |
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133 |
} |
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|
134 |
|
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135 |
/*! |
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136 |
Returns the data stored for the item referred to by the \a index. |
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137 |
|
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138 |
\reimp |
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139 |
*/ |
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|
140 |
QVariant HgWidgetTestDataModel::data(const QModelIndex &index, int role) const |
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|
141 |
{ |
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|
142 |
QVariant returnValue = QVariant(); |
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|
143 |
if ( !index.isValid() ) { |
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Revision: 201011
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|
144 |
return returnValue; |
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|
145 |
} |
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|
146 |
|
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Revision: 201011
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parents:
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|
147 |
int row = index.row(); |
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|
148 |
|
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Revision: 201011
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|
149 |
if( row >= mFiles.count() ){ |
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Revision: 201011
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|
150 |
return returnValue; |
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|
151 |
} |
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|
152 |
|
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Revision: 201011
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|
153 |
switch ( role ) |
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|
154 |
{ |
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|
155 |
case HgWidget::HgVisibilityRole: |
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Revision: 201011
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|
156 |
{ |
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Revision: 201011
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|
157 |
returnValue = mVisibility[index.row()]; |
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Revision: 201011
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|
158 |
} break; |
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Revision: 201011
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|
159 |
case Qt::DisplayRole: |
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Revision: 201011
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parents:
diff
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|
160 |
{ |
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Revision: 201011
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|
161 |
QStringList texts; |
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Revision: 201011
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|
162 |
QString text( "Primary " ); |
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Revision: 201011
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|
163 |
text.append(QString::number(row)); |
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Revision: 201011
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|
164 |
texts << text; |
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Revision: 201011
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|
165 |
text = "Secondary "; |
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Revision: 201011
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|
166 |
text.append(QString::number(row)); |
89c329efa980
Revision: 201011
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parents:
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|
167 |
texts << text; |
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Revision: 201011
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|
168 |
returnValue = texts; |
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Revision: 201011
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|
169 |
break; |
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Revision: 201011
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|
170 |
} |
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Revision: 201011
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|
171 |
case Qt::DecorationRole: |
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Revision: 201011
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|
172 |
{ |
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Revision: 201011
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|
173 |
// INFO("Requesting model item" << row << ", " << mFiles.at(row)); |
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|
174 |
if (mFiles.at(row).isEmpty()) { |
89c329efa980
Revision: 201011
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|
175 |
returnValue = mDefaultIcon; |
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Revision: 201011
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|
176 |
} |
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Revision: 201011
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|
177 |
else { |
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Revision: 201011
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|
178 |
QImage icon = mAlbumArtManager->albumArt(mFiles.at(row), row); |
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Revision: 201011
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|
179 |
if ( !icon.isNull() ) |
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Revision: 201011
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|
180 |
{ |
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Revision: 201011
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parents:
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|
181 |
if (mUseLowResImages) { |
89c329efa980
Revision: 201011
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|
182 |
QSize size = icon.size(); |
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Revision: 201011
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|
183 |
icon = icon.scaled(QSize(size.width()/4, size.height()/4)); |
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Revision: 201011
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|
184 |
} |
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Revision: 201011
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|
185 |
|
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Revision: 201011
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|
186 |
switch(mImageType) |
89c329efa980
Revision: 201011
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diff
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|
187 |
{ |
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Revision: 201011
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parents:
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|
188 |
case TypeHbIcon: |
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Revision: 201011
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diff
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|
189 |
{ |
89c329efa980
Revision: 201011
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parents:
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|
190 |
returnValue = mHbIcon; |
89c329efa980
Revision: 201011
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parents:
diff
changeset
|
191 |
break; |
89c329efa980
Revision: 201011
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parents:
diff
changeset
|
192 |
} |
89c329efa980
Revision: 201011
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parents:
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changeset
|
193 |
case TypeQImage: |
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Revision: 201011
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parents:
diff
changeset
|
194 |
{ |
89c329efa980
Revision: 201011
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|
195 |
returnValue = icon; |
89c329efa980
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
196 |
break; |
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Revision: 201011
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parents:
diff
changeset
|
197 |
} |
89c329efa980
Revision: 201011
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parents:
diff
changeset
|
198 |
case TypeQIcon: |
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Revision: 201011
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parents:
diff
changeset
|
199 |
{ |
89c329efa980
Revision: 201011
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parents:
diff
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|
200 |
returnValue = mQIcon; |
89c329efa980
Revision: 201011
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parents:
diff
changeset
|
201 |
break; |
89c329efa980
Revision: 201011
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parents:
diff
changeset
|
202 |
} |
89c329efa980
Revision: 201011
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parents:
diff
changeset
|
203 |
default: |
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Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
204 |
break; |
89c329efa980
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
205 |
} |
89c329efa980
Revision: 201011
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parents:
diff
changeset
|
206 |
|
89c329efa980
Revision: 201011
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parents:
diff
changeset
|
207 |
} |
89c329efa980
Revision: 201011
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parents:
diff
changeset
|
208 |
else |
89c329efa980
Revision: 201011
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parents:
diff
changeset
|
209 |
{ |
89c329efa980
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
210 |
returnValue = mDefaultIcon; |
89c329efa980
Revision: 201011
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parents:
diff
changeset
|
211 |
} |
89c329efa980
Revision: 201011
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parents:
diff
changeset
|
212 |
} |
89c329efa980
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
213 |
break; |
89c329efa980
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
214 |
} |
89c329efa980
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
215 |
case Hb::IndexFeedbackRole: |
89c329efa980
Revision: 201011
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parents:
diff
changeset
|
216 |
{ |
89c329efa980
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
217 |
returnValue = QString::number(row); |
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|
218 |
break; |
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|
219 |
} |
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|
220 |
case Qt::BackgroundRole: |
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|
221 |
{ |
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|
222 |
if ( (index.row() % 2) == 0 ) { |
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|
223 |
QColor color(211,211,211,127); |
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|
224 |
QBrush brush(color); |
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returnValue = brush; |
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|
226 |
} |
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|
227 |
else { |
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QColor color(255,250,250,127); |
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QBrush brush(color); |
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returnValue = brush; |
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231 |
} |
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232 |
break; |
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233 |
} |
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|
234 |
|
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235 |
case (Qt::UserRole+2): |
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236 |
{ |
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QImage icon = mAlbumArtManager->albumArt(mFiles.at(row), row); |
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238 |
if (!icon.isNull()) |
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239 |
{ |
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240 |
returnValue = icon; |
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241 |
} |
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242 |
} break; |
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243 |
} |
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|
244 |
|
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return returnValue; |
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246 |
} |
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|
247 |
|
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248 |
/*! |
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249 |
Must be called when data has changed and model needs to be refreshed |
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250 |
to reflect the new data. |
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|
251 |
*/ |
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252 |
void HgWidgetTestDataModel::refreshModel() |
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253 |
{ |
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|
254 |
// Cancel all outstanding album art request first, then reset the model. |
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255 |
mAlbumArtManager->cancel(); |
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|
256 |
|
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|
257 |
// Before providing the new data to the view (list, grid, etc.), we want |
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|
258 |
// to make sure that we have enough album arts for the first screen. |
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|
259 |
/* mFiles.count() = mCollectionData->count(); |
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260 |
if ( mFiles.count() > 0 ) { |
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|
261 |
int initCount = ( mFiles.count() > KInitCacheSize ) ? KInitCacheSize : mFiles.count(); |
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|
262 |
QStringList albumArtList; |
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|
263 |
QString albumArtUri; |
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Revision: 201011
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|
264 |
for ( int i = 0; i < initCount; i++ ) { |
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Revision: 201011
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|
265 |
albumArtUri = mCollectionData->itemData(i, MpMpxCollectionData::AlbumArtUri); |
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|
266 |
if ( !albumArtUri.isEmpty() ) { |
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|
267 |
albumArtList << albumArtUri; |
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|
268 |
} |
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|
269 |
} |
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|
270 |
mCachingInProgress = mAlbumArtManager->cacheAlbumArt(albumArtList); |
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Revision: 201011
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|
271 |
if ( !mCachingInProgress ) { |
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|
272 |
reset(); |
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|
273 |
} |
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|
274 |
} |
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Revision: 201011
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|
275 |
else { |
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Revision: 201011
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|
276 |
reset(); |
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|
277 |
} |
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|
278 |
*/ |
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|
279 |
} |
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|
280 |
|
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|
281 |
/*! |
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|
282 |
Remove items from model (do not actually delete them). |
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|
283 |
*/ |
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|
284 |
void HgWidgetTestDataModel::remove(const QItemSelection &selection) |
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|
285 |
{ |
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Revision: 201011
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|
286 |
FUNC_LOG; |
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|
287 |
|
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Revision: 201011
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|
288 |
QModelIndexList modelIndexes = selection.indexes(); |
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Revision: 201011
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|
289 |
int removeCount = modelIndexes.count(); |
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Revision: 201011
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|
290 |
int originalItemCount = mFiles.count(); |
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Revision: 201011
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|
291 |
if (originalItemCount-removeCount > 0) { |
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Revision: 201011
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|
292 |
RangeList removeRanges; |
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|
293 |
qSort(modelIndexes); |
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Revision: 201011
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|
294 |
while (!modelIndexes.isEmpty()) { |
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Revision: 201011
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|
295 |
QModelIndexList::iterator i = modelIndexes.begin(); |
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|
296 |
QModelIndexList::iterator start = i; |
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|
297 |
int lastRow = i->row(); |
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|
298 |
while (++i != modelIndexes.end() && i->row() == lastRow+1) { |
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|
299 |
lastRow++; |
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|
300 |
} |
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Revision: 201011
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parents:
diff
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|
301 |
removeRanges.append(Range(start->row(), lastRow)); |
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Revision: 201011
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parents:
diff
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|
302 |
modelIndexes.erase(start, i); |
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parents:
diff
changeset
|
303 |
} |
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parents:
diff
changeset
|
304 |
|
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parents:
diff
changeset
|
305 |
// Work backwards to keep the indexes consistent |
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Revision: 201011
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parents:
diff
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|
306 |
for (int i = removeRanges.count()-1; i >= 0; i--) { |
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Revision: 201011
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parents:
diff
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|
307 |
Range range = removeRanges.at(i); |
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diff
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|
308 |
beginRemoveRows(QModelIndex(), range.first, range.second); |
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Revision: 201011
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|
309 |
for (int j = range.second; j >= range.first; j--) { |
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Revision: 201011
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|
310 |
INFO("Removing model item" << j); |
89c329efa980
Revision: 201011
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|
311 |
mFiles.removeAt(j); |
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diff
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|
312 |
} |
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Revision: 201011
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|
313 |
endRemoveRows(); |
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diff
changeset
|
314 |
} |
89c329efa980
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parents:
diff
changeset
|
315 |
} |
89c329efa980
Revision: 201011
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parents:
diff
changeset
|
316 |
else if (originalItemCount-removeCount == 0) { |
89c329efa980
Revision: 201011
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parents:
diff
changeset
|
317 |
beginRemoveRows(QModelIndex(), 0, originalItemCount-1); |
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Revision: 201011
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parents:
diff
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|
318 |
mFiles.clear(); |
89c329efa980
Revision: 201011
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parents:
diff
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|
319 |
endRemoveRows(); |
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Revision: 201011
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parents:
diff
changeset
|
320 |
} |
89c329efa980
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parents:
diff
changeset
|
321 |
} |
89c329efa980
Revision: 201011
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parents:
diff
changeset
|
322 |
|
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Revision: 201011
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parents:
diff
changeset
|
323 |
/*! |
89c329efa980
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
324 |
Move items to the target index in the model. The selection should be contiguous. |
89c329efa980
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*/ |
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void HgWidgetTestDataModel::move(const QItemSelection &selection, const QModelIndex &target) |
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{ |
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FUNC_LOG; |
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QModelIndexList modelIndexes = selection.indexes(); |
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|
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if (modelIndexes.count() > 0 && target.isValid()) { |
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int first = modelIndexes.front().row(); |
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int last = modelIndexes.back().row(); |
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int targetRow = target.row(); |
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INFO("Move indexes" << first << "-" << last << "to" << targetRow); |
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if (targetRow < first) { |
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beginMoveRows(QModelIndex(), first, last, QModelIndex(), targetRow); |
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for (int i = 0; i <= last-first; i++) { |
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mFiles.move(first+i, targetRow+i); |
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} |
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endMoveRows(); |
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} |
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else if (targetRow > last) { |
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beginMoveRows(QModelIndex(), first, last, QModelIndex(), targetRow); |
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for (int i = 0; i <= last-first; i++) { |
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mFiles.move(last-i, targetRow); |
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} |
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endMoveRows(); |
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} |
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} |
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} |
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|
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/*! |
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Add count dummy items at the target index in the model. |
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*/ |
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void HgWidgetTestDataModel::add(const QModelIndex &target, int count) |
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{ |
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FUNC_LOG; |
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360 |
|
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if (target.isValid()) { |
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beginInsertRows(QModelIndex(), target.row(), target.row()+count-1); |
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for (int i = 0; i < count; i++) { |
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mFiles.insert(target.row(), QString()); |
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mVisibility.insert(target.row(), true); |
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} |
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endInsertRows(); |
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} |
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} |
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370 |
|
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371 |
/*! |
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Slot to be called when album art for the \a index needs to be updated. |
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*/ |
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void HgWidgetTestDataModel::updateAlbumArt( int index ) |
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{ |
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if ( index >= 0 && index < mFiles.count() ) { |
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QModelIndex modelIndex = QAbstractItemModel::createIndex(index, 0); |
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emit dataChanged(modelIndex, modelIndex); |
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} |
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} |
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|
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/*! |
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Slot to be called when album art cache is ready. |
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*/ |
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void HgWidgetTestDataModel::albumCacheReady() |
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{ |
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if ( mCachingInProgress ) { |
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mCachingInProgress = false; |
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reset(); |
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} |
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} |
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|
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void HgWidgetTestDataModel::setImageDataType(ImageType type) |
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{ |
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mImageType = type; |
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} |
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397 |
|
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bool HgWidgetTestDataModel::setData(const QModelIndex& index, const QVariant& value, int role) |
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{ |
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if (role == HgWidget::HgVisibilityRole) |
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{ |
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mVisibility[index.row()] = value.toBool(); |
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emit dataChanged(index, index); |
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return true; |
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} |
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return false; |
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} |
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|
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void HgWidgetTestDataModel::enableLowResImages(bool enabled) { |
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|
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mUseLowResImages = enabled; |
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} |
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|
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bool HgWidgetTestDataModel::lowResImagesEnabled() const { |
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|
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return mUseLowResImages; |
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} |
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418 |