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akonadi

agentinstancewidget.cpp

00001 /*
00002     Copyright (c) 2006-2008 Tobias Koenig <tokoe@kde.org>
00003 
00004     This library is free software; you can redistribute it and/or modify it
00005     under the terms of the GNU Library General Public License as published by
00006     the Free Software Foundation; either version 2 of the License, or (at your
00007     option) any later version.
00008 
00009     This library is distributed in the hope that it will be useful, but WITHOUT
00010     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00011     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
00012     License for more details.
00013 
00014     You should have received a copy of the GNU Library General Public License
00015     along with this library; see the file COPYING.LIB.  If not, write to the
00016     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
00017     02110-1301, USA.
00018 */
00019 
00020 #include "agentinstancewidget.h"
00021 
00022 #include "agentfilterproxymodel.h"
00023 #include "agentinstance.h"
00024 #include "agentinstancemodel.h"
00025 
00026 #include <KIcon>
00027 #include <KGlobal>
00028 
00029 #include <QtCore/QUrl>
00030 #include <QtGui/QAbstractTextDocumentLayout>
00031 #include <QtGui/QApplication>
00032 #include <QtGui/QHBoxLayout>
00033 #include <QtGui/QListView>
00034 #include <QtGui/QPainter>
00035 #include <QtGui/QTextDocument>
00036 
00037 using namespace Akonadi;
00038 
00039 struct Icons
00040 {
00041   Icons()
00042    : readyPixmap( KIcon( QLatin1String("user-online") ).pixmap( QSize( 16, 16 ) ) )
00043    , syncPixmap( KIcon( QLatin1String("network-connect") ).pixmap( QSize( 16, 16 ) ) )
00044    , errorPixmap( KIcon( QLatin1String("dialog-error") ).pixmap( QSize( 16, 16 ) ) )
00045   {
00046   }
00047   QPixmap readyPixmap, syncPixmap, errorPixmap;
00048 };
00049 
00050 K_GLOBAL_STATIC( Icons, s_icons )
00051 
00052 
00055 class AgentInstanceWidgetDelegate : public QAbstractItemDelegate
00056 {
00057   public:
00058     AgentInstanceWidgetDelegate( QObject *parent = 0 );
00059 
00060     virtual void paint( QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index ) const;
00061     virtual QSize sizeHint( const QStyleOptionViewItem &option, const QModelIndex &index ) const;
00062 
00063   private:
00064     void drawFocus( QPainter*, const QStyleOptionViewItem&, const QRect& ) const;
00065 
00066     QTextDocument* document( const QStyleOptionViewItem &option, const QModelIndex &index ) const;
00067 };
00068 
00072 class AgentInstanceWidget::Private
00073 {
00074   public:
00075     Private( AgentInstanceWidget *parent )
00076       : mParent( parent )
00077     {
00078     }
00079 
00080     void currentAgentInstanceChanged( const QModelIndex&, const QModelIndex& );
00081     void currentAgentInstanceDoubleClicked( const QModelIndex& );
00082 
00083     AgentInstanceWidget *mParent;
00084     QListView *mView;
00085     AgentInstanceModel *mModel;
00086     AgentFilterProxyModel *proxy;
00087 };
00088 
00089 void AgentInstanceWidget::Private::currentAgentInstanceChanged( const QModelIndex &currentIndex, const QModelIndex &previousIndex )
00090 {
00091   AgentInstance currentInstance;
00092   if ( currentIndex.isValid() )
00093     currentInstance = currentIndex.data( AgentInstanceModel::InstanceRole ).value<AgentInstance>();
00094 
00095   AgentInstance previousInstance;
00096   if ( previousIndex.isValid() )
00097     previousInstance = previousIndex.data( AgentInstanceModel::InstanceRole ).value<AgentInstance>();
00098 
00099   emit mParent->currentChanged( currentInstance, previousInstance );
00100 }
00101 
00102 void AgentInstanceWidget::Private::currentAgentInstanceDoubleClicked( const QModelIndex &currentIndex )
00103 {
00104   AgentInstance currentInstance;
00105   if ( currentIndex.isValid() )
00106     currentInstance = currentIndex.data( AgentInstanceModel::InstanceRole ).value<AgentInstance>();
00107 
00108   emit mParent->doubleClicked( currentInstance );
00109 }
00110 
00111 AgentInstanceWidget::AgentInstanceWidget( QWidget *parent )
00112   : QWidget( parent ), d( new Private( this ) )
00113 {
00114   QHBoxLayout *layout = new QHBoxLayout( this );
00115   layout->setMargin( 0 );
00116   layout->setSpacing( 0 );
00117 
00118   d->mView = new QListView( this );
00119   d->mView->setItemDelegate( new AgentInstanceWidgetDelegate( d->mView ) );
00120   layout->addWidget( d->mView );
00121 
00122   d->mModel = new AgentInstanceModel( this );
00123 
00124   d->proxy = new AgentFilterProxyModel( this );
00125   d->proxy->setSourceModel( d->mModel );
00126   d->mView->setModel( d->proxy );
00127 
00128   d->mView->selectionModel()->setCurrentIndex( d->mView->model()->index( 0, 0 ), QItemSelectionModel::Select );
00129   d->mView->scrollTo( d->mView->model()->index( 0, 0 ) );
00130 
00131   connect( d->mView->selectionModel(), SIGNAL( currentChanged( const QModelIndex&, const QModelIndex& ) ),
00132            this, SLOT( currentAgentInstanceChanged( const QModelIndex&, const QModelIndex& ) ) );
00133   connect( d->mView, SIGNAL( doubleClicked( const QModelIndex& ) ),
00134            this, SLOT( currentAgentInstanceDoubleClicked( const QModelIndex& ) ) );
00135 }
00136 
00137 AgentInstanceWidget::~AgentInstanceWidget()
00138 {
00139   delete d;
00140 }
00141 
00142 AgentInstance AgentInstanceWidget::currentAgentInstance() const
00143 {
00144   QItemSelectionModel *selectionModel = d->mView->selectionModel();
00145   if ( !selectionModel )
00146     return AgentInstance();
00147 
00148   QModelIndex index = selectionModel->currentIndex();
00149   if ( !index.isValid() )
00150     return AgentInstance();
00151 
00152   return index.data( AgentInstanceModel::InstanceRole ).value<AgentInstance>();
00153 }
00154 
00155 AgentFilterProxyModel* AgentInstanceWidget::agentFilterProxyModel() const
00156 {
00157   return d->proxy;
00158 }
00159 
00160 
00161 
00162 
00163 
00164 AgentInstanceWidgetDelegate::AgentInstanceWidgetDelegate( QObject *parent )
00165  : QAbstractItemDelegate( parent )
00166 {
00167 }
00168 
00169 QTextDocument* AgentInstanceWidgetDelegate::document( const QStyleOptionViewItem &option, const QModelIndex &index ) const
00170 {
00171   if ( !index.isValid() )
00172     return 0;
00173 
00174   const QString name = index.model()->data( index, Qt::DisplayRole ).toString();
00175   int status = index.model()->data( index, AgentInstanceModel::StatusRole ).toInt();
00176   uint progress = index.model()->data( index, AgentInstanceModel::ProgressRole ).toUInt();
00177   const QString statusMessage = index.model()->data( index, AgentInstanceModel::StatusMessageRole ).toString();
00178   const QStringList capabilities = index.model()->data( index, AgentInstanceModel::CapabilitiesRole ).toStringList();
00179 
00180   QTextDocument *document = new QTextDocument( 0 );
00181 
00182   const QVariant data = index.model()->data( index, Qt::DecorationRole );
00183   if ( data.isValid() && data.type() == QVariant::Icon ) {
00184     document->addResource( QTextDocument::ImageResource, QUrl( QLatin1String( "agent_icon" ) ),
00185                            qvariant_cast<QIcon>( data ).pixmap( QSize( 64, 64 ) ) );
00186   }
00187 
00188   if ( status == 0 )
00189     document->addResource( QTextDocument::ImageResource, QUrl( QLatin1String( "status_icon" ) ), s_icons->readyPixmap );
00190   else if ( status == 1 )
00191     document->addResource( QTextDocument::ImageResource, QUrl( QLatin1String( "status_icon" ) ), s_icons->syncPixmap );
00192   else
00193     document->addResource( QTextDocument::ImageResource, QUrl( QLatin1String( "status_icon" ) ), s_icons->errorPixmap );
00194 
00195 
00196   QPalette::ColorGroup cg = option.state & QStyle::State_Enabled ? QPalette::Normal : QPalette::Disabled;
00197   if ( cg == QPalette::Normal && !(option.state & QStyle::State_Active) )
00198     cg = QPalette::Inactive;
00199 
00200   QColor textColor;
00201   if ( option.state & QStyle::State_Selected ) {
00202     textColor = option.palette.color( cg, QPalette::HighlightedText );
00203   } else {
00204     textColor = option.palette.color( cg, QPalette::Text );
00205   }
00206 
00207   QString content = QString::fromLatin1(
00208      "<html style=\"color:%1\">"
00209      "<body>"
00210      "<table>"
00211      "<tr>"
00212      "<td rowspan=\"2\"><img src=\"agent_icon\"></td>"
00213      "<td><b>%2</b></td>"
00214      "</tr>" ).arg(textColor.name().toUpper()).arg( name );
00215   if ( capabilities.contains( QLatin1String( "Resource" ) ) ) {
00216      content += QString::fromLatin1(
00217      "<tr>"
00218      "<td><img src=\"status_icon\"/> %1 %2</td>"
00219      "</tr>" ).arg( statusMessage ).arg( status == 1 ? QString( QLatin1String( "(%1%)" ) ).arg( progress ) : QLatin1String( "" ) );
00220   }
00221   content += QLatin1String( "</table></body></html>" );
00222 
00223   document->setHtml( content );
00224 
00225   return document;
00226 }
00227 
00228 void AgentInstanceWidgetDelegate::paint( QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index ) const
00229 {
00230   if ( !index.isValid() )
00231     return;
00232 
00233   QTextDocument *doc = document( option, index );
00234   if ( !doc )
00235     return;
00236 
00237   painter->setRenderHint( QPainter::Antialiasing );
00238 
00239   QPen pen = painter->pen();
00240 
00241   QPalette::ColorGroup cg = option.state & QStyle::State_Enabled ? QPalette::Normal : QPalette::Disabled;
00242   if ( cg == QPalette::Normal && !(option.state & QStyle::State_Active) )
00243     cg = QPalette::Inactive;
00244 
00245   if ( option.state & QStyle::State_Selected ) {
00246     painter->fillRect( option.rect, option.palette.brush( cg, QPalette::Highlight ) );
00247     painter->setPen( option.palette.color( cg, QPalette::HighlightedText ) );
00248   } else {
00249     painter->setPen(option.palette.color( cg, QPalette::Text ) );
00250   }
00251 
00252   painter->save();
00253   painter->translate( option.rect.topLeft() );
00254   doc->drawContents( painter );
00255   delete doc;
00256   painter->restore();
00257 
00258   painter->setPen(pen);
00259 
00260   drawFocus( painter, option, option.rect );
00261 }
00262 
00263 QSize AgentInstanceWidgetDelegate::sizeHint( const QStyleOptionViewItem &option, const QModelIndex &index ) const
00264 {
00265   if ( !index.isValid() )
00266     return QSize( 0, 0 );
00267 
00268   QTextDocument *doc = document( option, index );
00269   if ( !doc )
00270     return QSize( 0, 0 );
00271 
00272   const QSize size = doc->documentLayout()->documentSize().toSize();
00273   delete doc;
00274 
00275   return size;
00276 }
00277 
00278 void AgentInstanceWidgetDelegate::drawFocus( QPainter *painter, const QStyleOptionViewItem &option, const QRect &rect ) const
00279 {
00280   if ( option.state & QStyle::State_HasFocus ) {
00281     QStyleOptionFocusRect o;
00282     o.QStyleOption::operator=( option );
00283     o.rect = rect;
00284     o.state |= QStyle::State_KeyboardFocusChange;
00285     QPalette::ColorGroup cg = (option.state & QStyle::State_Enabled) ? QPalette::Normal : QPalette::Disabled;
00286     o.backgroundColor = option.palette.color( cg, (option.state & QStyle::State_Selected)
00287                                                   ? QPalette::Highlight : QPalette::Background );
00288     QApplication::style()->drawPrimitive( QStyle::PE_FrameFocusRect, &o, painter );
00289   }
00290 }
00291 
00292 #include "agentinstancewidget.moc"

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