kmail/configagentdelegate.cpp

   1 /*
   2     Copyright (c) 2010 Casey Link <unnamedrambler@gmail.com>
   3     Copyright (c) 2009-2010 Klaralvdalens Datakonsult AB, a KDAB Group company <info@kdab.net>
   4     Copyright (c) 2006-2008 Tobias Koenig <tokoe@kde.org>
   5
   6     This library is free software; you can redistribute it and/or modify it
   7     under the terms of the GNU Library General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or (at your
   9     option) any later version.
  10
  11     This library is distributed in the hope that it will be useful, but WITHOUT
  12     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
  14     License for more details.
  15
  16     You should have received a copy of the GNU Library General Public License
  17     along with this library; see the file COPYING.LIB.  If not, write to the
  18     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19     02110-1301, USA.
  20 */
  21
  22 #include "configagentdelegate.h"
  23
  24 #include <Akonadi/AgentInstanceModel>
  25 #include <Akonadi/AgentInstance>
  26
  27 #include <KDebug>
  28 #include <KIcon>
  29 #include <KGlobal>
  30 #include <KLocale>
  31
  32 #include <QUrl>
  33 #include <QAbstractTextDocumentLayout>
  34 #include <QApplication>
  35 #include <QHBoxLayout>
  36 #include <QTableView>
  37 #include <QPainter>
  38 #include <QTextDocument>
  39 #include <QMenu>
  40
  41 using Akonadi::AgentInstanceModel;
  42 using Akonadi::AgentInstance;
  43
  44 struct Icons {
  45     Icons()
  46             : readyPixmap ( KIcon ( QLatin1String ( "user-online" ) ).pixmap ( QSize ( 16, 16 ) ) )
  47             , syncPixmap ( KIcon ( QLatin1String ( "network-connect" ) ).pixmap ( QSize ( 16, 16 ) ) )
  48             , errorPixmap ( KIcon ( QLatin1String ( "dialog-error" ) ).pixmap ( QSize ( 16, 16 ) ) )
  49             , offlinePixmap ( KIcon ( QLatin1String ( "network-disconnect" ) ).pixmap ( QSize ( 16, 16 ) ) )
  50             , checkMailIcon ( KIcon ( "mail-receive" ) ) {
  51     }
  52     QPixmap readyPixmap, syncPixmap, errorPixmap, offlinePixmap;
  53     KIcon checkMailIcon;
  54 };
  55
  56 K_GLOBAL_STATIC ( Icons, s_icons )
  57
  58 ConfigAgentDelegate::ConfigAgentDelegate ( QObject *parent )
  59         : QStyledItemDelegate ( parent )
  60 {
  61 }
  62
  63 QTextDocument* ConfigAgentDelegate::document ( const QStyleOptionViewItem &option, const QModelIndex &index ) const
  64 {
  65     if ( !index.isValid() )
  66         return 0;
  67
  68     const QString name = index.model()->data ( index, Qt::DisplayRole ).toString();
  69     int status = index.model()->data ( index, AgentInstanceModel::StatusRole ).toInt();
  70     uint progress = index.model()->data ( index, AgentInstanceModel::ProgressRole ).toUInt();
  71     const QString statusMessage = index.model()->data ( index, AgentInstanceModel::StatusMessageRole ).toString();
  72     const QStringList capabilities = index.model()->data ( index, AgentInstanceModel::CapabilitiesRole ).toStringList();
  73
  74     QTextDocument *document = new QTextDocument ( 0 );
  75
  76     const QVariant data = index.model()->data ( index, Qt::DecorationRole );
  77     if ( data.isValid() && data.type() == QVariant::Icon ) {
  78         document->addResource ( QTextDocument::ImageResource, QUrl ( QLatin1String ( "agent_icon" ) ),
  79                                 qvariant_cast<QIcon> ( data ).pixmap ( QSize ( 64, 64 ) ) );
  80     }
  81
  82     if ( !index.data ( AgentInstanceModel::OnlineRole ).toBool() )
  83         document->addResource ( QTextDocument::ImageResource, QUrl ( QLatin1String ( "status_icon" ) ), s_icons->offlinePixmap );
  84     else if ( status == AgentInstance::Idle )
  85         document->addResource ( QTextDocument::ImageResource, QUrl ( QLatin1String ( "status_icon" ) ), s_icons->readyPixmap );
  86     else if ( status == AgentInstance::Running )
  87         document->addResource ( QTextDocument::ImageResource, QUrl ( QLatin1String ( "status_icon" ) ), s_icons->syncPixmap );
  88     else
  89         document->addResource ( QTextDocument::ImageResource, QUrl ( QLatin1String ( "status_icon" ) ), s_icons->errorPixmap );
  90
  91
  92     QPalette::ColorGroup cg = option.state & QStyle::State_Enabled ? QPalette::Normal : QPalette::Disabled;
  93     if ( cg == QPalette::Normal && ! ( option.state & QStyle::State_Active ) )
  94         cg = QPalette::Inactive;
  95
  96     QColor textColor;
  97     if ( option.state & QStyle::State_Selected ) {
  98         textColor = option.palette.color ( cg, QPalette::HighlightedText );
  99     }
 100     else {
 101         textColor = option.palette.color ( cg, QPalette::Text );
 102     }
 103
 104     QString content = QString::fromLatin1 (
 105                           "<html style=\"color:%1\">"
 106                           "<body>"
 107                           "<table>"
 108                           "<tr>"
 109                           "<td rowspan=\"2\"><img src=\"agent_icon\">&nbsp;&nbsp;</td>"
 110                           "<td><b>%2</b></td>"
 111                           "</tr>" ).arg ( textColor.name().toUpper() ).arg ( name )
 112                       + QString::fromLatin1 (
 113                           "<tr>"
 114                           "<td><img src=\"status_icon\"/> %1 %2</td>"
 115                           "</tr>" ).arg ( statusMessage ).arg ( status == 1 ? QString ( QLatin1String ( "(%1%)" ) ).arg ( progress ) : QLatin1String ( "" ) )
 116                       + QLatin1String ( "</table></body></html>" );
 117
 118     document->setHtml ( content );
 119
 120     return document;
 121 }
 122
 123 void ConfigAgentDelegate::paint ( QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index ) const
 124 {
 125     if ( !index.isValid() )
 126         return;
 127
 128     QTextDocument *doc = document ( option, index );
 129     if ( !doc )
 130         return;
 131
 132     QStyleOptionButton buttonOpt = buttonOption ( option );
 133
 134     doc->setTextWidth( option.rect.width() - buttonOpt.rect.width() );
 135     painter->setRenderHint ( QPainter::Antialiasing );
 136
 137     QPen pen = painter->pen();
 138
 139     QPalette::ColorGroup cg = option.state & QStyle::State_Enabled ? QPalette::Normal : QPalette::Disabled;
 140     if ( cg == QPalette::Normal && ! ( option.state & QStyle::State_Active ) )
 141         cg = QPalette::Inactive;
 142
 143     QStyleOptionViewItemV4 opt ( option );
 144     opt.showDecorationSelected = true;
 145     QApplication::style()->drawPrimitive ( QStyle::PE_PanelItemViewItem, &opt, painter );
 146     painter->save();
 147     painter->translate ( option.rect.topLeft() );
 148
 149     doc->drawContents ( painter );
 150
 151     QApplication::style()->drawControl ( QStyle::CE_PushButton, &buttonOpt, painter );
 152
 153     painter->restore();
 154     painter->setPen ( pen );
 155
 156     drawFocus ( painter, option, option.rect );
 157     delete doc;
 158 }
 159
 160 QSize ConfigAgentDelegate::sizeHint ( const QStyleOptionViewItem &option, const QModelIndex &index ) const
 161 {
 162     if ( !index.isValid() )
 163         return QSize ( 0, 0 );
 164
 165     QTextDocument *doc = document ( option, index );
 166     if ( !doc )
 167         return QSize ( 0, 0 );
 168
 169     const QSize size = doc->documentLayout()->documentSize().toSize();
 170     delete doc;
 171
 172     return size;
 173 }
 174
 175 QWidget  * ConfigAgentDelegate::createEditor ( QWidget *, const QStyleOptionViewItem  &, const QModelIndex & ) const
 176 {
 177   return 0;
 178 }
 179
 180 bool ConfigAgentDelegate::editorEvent ( QEvent* event, QAbstractItemModel* model, const QStyleOptionViewItem& option, const QModelIndex& index )
 181 {
 182     Q_UNUSED ( model );
 183     if ( ! ( ( event->type() == QEvent::MouseButtonRelease )
 184              || ( event->type() == QEvent::MouseButtonPress )
 185              || ( event->type() == QEvent::MouseMove ) ) )
 186         return false;
 187
 188     if ( !index.isValid() )
 189         return false;
 190
 191     QMouseEvent *me = static_cast<QMouseEvent*> ( event );
 192     const QPoint mousePos = me->pos() - option.rect.topLeft();
 193
 194     QStyleOptionButton buttonOpt = buttonOption ( option );
 195
 196     if ( buttonOpt.rect.contains ( mousePos ) ) {
 197
 198         switch ( event->type() ) {
 199         case QEvent::MouseButtonPress:
 200             return false;
 201             break;
 202         case QEvent::MouseButtonRelease: {
 203             QPoint pos = buttonOpt.rect.bottomLeft() + option.rect.topLeft();
 204             const QString ident = index.data ( Akonadi::AgentInstanceModel::InstanceIdentifierRole ).toString();
 205             emit optionsClicked ( ident, pos );
 206             return true;
 207             break;
 208         }
 209         default:
 210             return false;
 211         }
 212     }
 213     return false;
 214 }
 215
 216 void ConfigAgentDelegate::drawFocus ( QPainter *painter, const QStyleOptionViewItem &option, const QRect &rect ) const
 217 {
 218     if ( option.state & QStyle::State_HasFocus ) {
 219         QStyleOptionFocusRect o;
 220         o.QStyleOption::operator= ( option );
 221         o.rect = rect;
 222         o.state |= QStyle::State_KeyboardFocusChange;
 223         QPalette::ColorGroup cg = ( option.state & QStyle::State_Enabled ) ? QPalette::Normal : QPalette::Disabled;
 224         o.backgroundColor = option.palette.color ( cg, ( option.state & QStyle::State_Selected )
 225                             ? QPalette::Highlight : QPalette::Background );
 226         QApplication::style()->drawPrimitive ( QStyle::PE_FrameFocusRect, &o, painter );
 227     }
 228 }
 229
 230 QStyleOptionButton ConfigAgentDelegate::buttonOption ( const QStyleOptionViewItem& option ) const
 231 {
 232     QString label = i18n( "Retrieval Options" );
 233     QStyleOptionButton buttonOpt;
 234     QRect buttonRect = option.rect;
 235     int height = option.rect.height() / 2;
 236     int width = 22 + option.fontMetrics.width( label ) + 40; // icon size + label size + arrow and padding
 237     buttonRect.setTop ( ( option.rect.height() / 2 ) - height / 2 ); // center the button vertically
 238     buttonRect.setHeight ( height );
 239     buttonRect.setLeft ( option.rect.right() - width );
 240     buttonRect.setWidth ( width );
 241
 242     buttonOpt.rect = buttonRect;
 243     buttonOpt.state = option.state;
 244     buttonOpt.text = label;
 245     buttonOpt.palette = option.palette;
 246     buttonOpt.features = QStyleOptionButton::HasMenu;
 247     buttonOpt.icon = s_icons->checkMailIcon;
 248     buttonOpt.iconSize = QSize ( 22, 22 ); // FIXME don't hardcode this icon size
 249
 250     return buttonOpt;
 251 }
 252
 253 #include "configagentdelegate.moc"