knode/knhdrviewitem.cpp

   1 /*
   2     KNode, the KDE newsreader
   3     Copyright (c) 1999-2006 the KNode authors.
   4     See file AUTHORS for details
   5     Copyright (c) 2005 Rafal Rzepecki <divide@users.sourceforge.net>
   6
   7     This program is free software; you can redistribute it and/or modify
   8     it under the terms of the GNU General Public License as published by
   9     the Free Software Foundation; either version 2 of the License, or
  10     (at your option) any later version.
  11     You should have received a copy of the GNU General Public License
  12     along with this program; if not, write to the Free Software Foundation,
  13     Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, US
  14 */
  15
  16 #include <QDrag>
  17 #include <QPainter>
  18 #include <QPixmap>
  19
  20 #include <kdebug.h>
  21
  22 #include "knglobals.h"
  23 #include "knconfigmanager.h"
  24 #include "knhdrviewitem.h"
  25 #include "knarticle.h"
  26 #include "headerview.h"
  27 #include "settings.h"
  28
  29
  30 KNHdrViewItem::KNHdrViewItem( KNHeaderView *ref, KNArticle::Ptr a ) :
  31   K3ListViewItem( ref )
  32 {
  33   init( a );
  34 }
  35
  36
  37 KNHdrViewItem::KNHdrViewItem( KNHdrViewItem *ref, KNArticle::Ptr a ) :
  38   K3ListViewItem( ref )
  39 {
  40   init( a );
  41 }
  42
  43
  44 void KNHdrViewItem::init( KNArticle::Ptr a )
  45 {
  46   art = a;
  47   mActive = false;
  48   for ( int i = 0; i < 5; ++i) // FIXME hardcoded column count
  49     mShowToolTip[i] = false;
  50 }
  51
  52
  53 KNHdrViewItem::~KNHdrViewItem()
  54 {
  55   if (mActive) {
  56     Q3ListView *lv = listView();
  57     if (lv)
  58       static_cast<KNHeaderView*>( lv )->activeRemoved();
  59   }
  60
  61   if (art) {
  62     art->setListItem( 0, art );
  63   }
  64 }
  65
  66
  67 void KNHdrViewItem::expandChildren()
  68 {
  69   Q3ListViewItemIterator it( firstChild() );
  70   for ( ; it.current(); ++it) {
  71     if (it.current()->depth() <= depth())
  72       break;
  73     it.current()->setOpen( true );
  74   }
  75 }
  76
  77
  78 int KNHdrViewItem::compare( Q3ListViewItem *i, int col, bool ) const
  79 {
  80   KNArticle::Ptr otherArticle = static_cast<KNHdrViewItem*>( i )->art;
  81   int diff = 0;
  82   time_t date1 = 0, date2 = 0;
  83
  84   switch (col) {
  85     case 0:
  86     case 1:
  87        return text( col ).localeAwareCompare( i->text(col) );
  88
  89     case 2:
  90        if (art->type() == KNArticle::ATremote) {
  91          diff = boost::static_pointer_cast<KNRemoteArticle>( art )->score() - boost::static_pointer_cast<KNRemoteArticle>( otherArticle )->score();
  92          return (diff < 0 ? -1 : diff > 0 ? 1 : 0);
  93        } else
  94          return 0;
  95
  96     case 3:
  97        diff = art->lines()->numberOfLines() - otherArticle->lines()->numberOfLines();
  98        return (diff < 0 ? -1 : diff > 0 ? 1 : 0);
  99
 100     case 4:
 101        date1 = art->date()->dateTime().toTime_t();
 102        date2 = otherArticle->date()->dateTime().toTime_t();
 103        if (art->type() == KNArticle::ATremote && static_cast<KNHeaderView*>( listView() )->sortByThreadChangeDate()) {
 104          if ( boost::static_pointer_cast<KNRemoteArticle>( art )->subThreadChangeDate() > date1 )
 105            date1 = boost::static_pointer_cast<KNRemoteArticle>( art )->subThreadChangeDate();
 106          if ( boost::static_pointer_cast<KNRemoteArticle>( otherArticle )->subThreadChangeDate() > date2 ) {
 107            date2 = boost::static_pointer_cast<KNRemoteArticle>( otherArticle )->subThreadChangeDate();
 108          }
 109        }
 110        diff = date1 - date2;
 111        return (diff < 0 ? -1 : diff > 0 ? 1 : 0);
 112
 113     default:
 114        return 0;
 115   }
 116 }
 117
 118
 119 void KNHdrViewItem::paintCell( QPainter *p, const QColorGroup &cg, int column, int width, int alignment )
 120 {
 121   int xText = 0, xPM = 3, yPM = 0;
 122   QColor base;
 123   const KPaintInfo *paintInfo = static_cast<KNHeaderView*>( listView() )->paintInfo();
 124
 125   QPen pen = p->pen();
 126   if (isSelected() || mActive) {
 127     pen.setColor( cg.color( QPalette::HighlightedText ) );
 128     base = cg.color( QPalette::Highlight );
 129   } else {
 130     if (greyOut())
 131       pen.setColor( greyColor() );
 132     else
 133       pen.setColor( normalColor() );
 134     base = backgroundColor( column );
 135   }
 136
 137   p->setPen( pen );
 138
 139   p->fillRect( 0, 0, width, height(), QBrush(base) );
 140
 141   if ( column == paintInfo->subCol ) {
 142     QFont font = p->font();
 143     font.setBold( firstColBold() );
 144     p->setFont( font );
 145     const QPixmap *pm;
 146
 147     for (int i = 0; i < 4; ++i) {
 148       pm = pixmap( i );
 149       if (pm && !pm->isNull()) {
 150         yPM = (height() - pm->height()) / 2;
 151         p->drawPixmap( xPM, yPM, *pm );
 152         xPM += pm->width() + 3;
 153       }
 154     }
 155
 156     xText = xPM;
 157   }
 158
 159   if (width - xText - 5 > 0) {
 160     int cntWidth = 0;
 161     QString t2;
 162     QFont f2;
 163     if (countUnreadInThread() > 0 && column == paintInfo->subCol && !isOpen()) {
 164       t2 = QString( " (%1)" ).arg( countUnreadInThread() );
 165       f2 = p->font();
 166       f2.setBold( true );
 167       cntWidth = QFontMetrics( f2 ).width( t2, -1 );
 168     }
 169     QString t = p->fontMetrics().elidedText( text( column ), Qt::ElideRight, width - xText - cntWidth - 5  );
 170
 171     // show tooltip if we have to squeeze the text
 172     if ( t != text( column ) )
 173       mShowToolTip[column] = true;
 174     else
 175       mShowToolTip[column] = false;
 176
 177     p->drawText( xText, 0, width - xText - 5, height(), alignment | Qt::AlignVCenter,  t );
 178     if (cntWidth) {
 179       QFont orig = p->font();
 180       p->setFont( f2 );
 181       QPen pen = p->pen();
 182       if (isSelected() || mActive) {
 183         pen.setColor( cg.color( QPalette::HighlightedText ) );
 184       } else {
 185         pen.setColor( cg.color( QPalette::Link ) );
 186       }
 187       p->setPen( pen );
 188       p->drawText( xText + QFontMetrics( orig ).width( t, -1 ), 0, width - xText - 5, height(), alignment | Qt::AlignVCenter,  t2 );
 189     }
 190   }
 191 }
 192
 193
 194 int KNHdrViewItem::width( const QFontMetrics &fm, const Q3ListView *, int column ) const
 195 {
 196   int ret = fm.boundingRect( text(column) ).width();
 197   const KPaintInfo *paintInfo = static_cast<KNHeaderView*>( listView() )->paintInfo();
 198
 199   // all pixmaps are drawn in the first column
 200   if ( column == paintInfo->subCol ) {
 201     const QPixmap *pm;
 202     for (int i = 0; i < 4; ++i) {
 203       pm = pixmap( i );
 204       if (pm && !pm->isNull())
 205         ret += pm->width() + 3;
 206     }
 207   }
 208
 209   return ret;
 210 }
 211
 212
 213 QString KNHdrViewItem::text( int col ) const
 214 {
 215   if ( !art )
 216     return QString();
 217   KNHeaderView *hv = static_cast<KNHeaderView*>( listView() );
 218
 219   if ( col == hv->paintInfo()->subCol ) {
 220     return art->subject()->asUnicodeString();
 221   }
 222
 223   if ( col == hv->paintInfo()->sizeCol ) {
 224     if ( art->lines()->numberOfLines() != 0 ) { // invalid values are read as '0' in KNGroup::insortHeaders()
 225       return QString::number( art->lines()->numberOfLines() );
 226     } else {
 227       return QString();
 228     }
 229   }
 230
 231   if ( col == hv->paintInfo()->scoreCol ) {
 232     if ( art->type() == KNArticle::ATremote )
 233       return QString::number( boost::static_pointer_cast<KNRemoteArticle>( art )->score() );
 234     else
 235       return QString();
 236   }
 237
 238   if ( col == hv->paintInfo()->dateCol ) {
 239     return hv->mDateFormatter.dateString( art->date()->dateTime().toTime_t() );
 240   } else
 241     return K3ListViewItem::text( col );
 242 }
 243
 244
 245 Q3DragObject* KNHdrViewItem::dragObject()
 246 {
 247 #ifdef __GNUC__
 248 #warning Enable this section again, once KNHdrView does not derive from K3ListView any more and can process QDrag (not Q3DragObject)
 249 #endif
 250 return 0;
 251 #if 0
 252   QDrag *drag = new QDrag( listView()->viewport() );
 253   QMimeData *md = new QMimeData;
 254   drag->setMimeData( md );
 255
 256   KUrl::List list;
 257   QString mid = art->messageID()->asUnicodeString();
 258   // for some obscure reason it returns messageid in <>s
 259   mid = mid.mid( 1, mid.length() - 2 );
 260   list.append( QLatin1String( "news:" ) + mid );
 261   QMap<QString,QString> metadata;
 262   metadata["labels"] = KUrl::toPercentEncoding( art->subject()->asUnicodeString() );
 263   list.populateMimeData( md, metadata );
 264   md->setData( "x-knode-drag/article" , QByteArray() );
 265
 266   drag->setPixmap( knGlobals.configManager()->appearance()->icon( KNode::Appearance::posting ) );
 267   return drag;
 268 #endif
 269 }
 270
 271
 272 int KNHdrViewItem::countUnreadInThread()
 273 {
 274   int count = 0;
 275   if ( knGlobals.settings()->showUnread() ) {
 276     if (art->type() == KNArticle::ATremote) {
 277       count = boost::static_pointer_cast<KNRemoteArticle>( art )->unreadFollowUps();
 278     }
 279   }
 280   return count;
 281 }
 282
 283
 284 bool KNHdrViewItem::greyOut()
 285 {
 286   if (art->type() == KNArticle::ATremote) {
 287     return !boost::static_pointer_cast<KNRemoteArticle>( art )->hasUnreadFollowUps()
 288         && boost::static_pointer_cast<KNRemoteArticle>( art )->isRead();
 289   } else
 290     return false;
 291 }
 292
 293
 294 bool KNHdrViewItem::firstColBold()
 295 {
 296   if(art->type() == KNArticle::ATremote)
 297     return boost::static_pointer_cast<KNRemoteArticle>( art )->isNew();
 298   else
 299     return false;
 300 }
 301
 302
 303 QColor KNHdrViewItem::normalColor()
 304 {
 305   if (art->type()==KNArticle::ATremote)
 306     return boost::static_pointer_cast<KNRemoteArticle>( art )->color();
 307   else
 308     return knGlobals.settings()->unreadThreadColor();
 309 }
 310
 311
 312 QColor KNHdrViewItem::greyColor()
 313 {
 314   return knGlobals.settings()->readThreadColor();
 315 }
 316