Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 1090 insertions, 0 deletions

diff --git a/korganizer/komonthview.cpp b/korganizer/komonthview.cpp
new file mode 100644
index 00000000..3c88bb01
--- /dev/null
+++ b/korganizer/komonthview.cpp
@@ -0,0 +1,1090 @@
+/*
+    This file is part of KOrganizer.
+
+    Copyright (c) 2000,2001 Cornelius Schumacher <schumacher@kde.org>
+    Copyright (C) 2003-2004 Reinhold Kainhofer <reinhold@kainhofer.com>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+    As a special exception, permission is given to link this program
+    with any edition of Qt, and distribute the resulting executable,
+    without including the source code for Qt in the source distribution.
+*/
+
+#include <qpopupmenu.h>
+#include <qfont.h>
+#include <qfontmetrics.h>
+#include <qkeycode.h>
+#include <qhbox.h>
+#include <qvbox.h>
+#include <qpushbutton.h>
+#include <qtooltip.h>
+#include <qpainter.h>
+#include <qcursor.h>
+#include <qlistbox.h>
+#include <qlayout.h>
+#include <qlabel.h>
+
+#include <kdebug.h>
+#include <klocale.h>
+#include <kglobal.h>
+#include <kconfig.h>
+#include <kiconloader.h>
+#include <kwordwrap.h>
+
+#include <kcalendarsystem.h>
+#include <libkcal/calfilter.h>
+#include <libkcal/calendar.h>
+#include <libkcal/incidenceformatter.h>
+#include <libkcal/calendarresources.h>
+
+#include "koprefs.h"
+#include "koglobals.h"
+#include "koincidencetooltip.h"
+#include "koeventpopupmenu.h"
+#include "kohelper.h"
+
+#include "komonthview.h"
+#include "komonthview.moc"
+
+//--------------------------------------------------------------------------
+
+KOMonthCellToolTip::KOMonthCellToolTip( QWidget *parent,
+                                        KNoScrollListBox *lv )
+  : QToolTip( parent )
+{
+  eventlist = lv;
+}
+
+void KOMonthCellToolTip::maybeTip( const QPoint & pos )
+{
+  QRect r;
+  QListBoxItem *it = eventlist->itemAt( pos );
+  MonthViewItem *i = static_cast<MonthViewItem*>( it );
+
+  if( i && KOPrefs::instance()->mEnableToolTips ) {
+    /* Calculate the rectangle. */
+    r=eventlist->itemRect( it );
+    /* Show the tip */
+    QString tipText( IncidenceFormatter::toolTipString( i->incidence() ) );
+    if ( !tipText.isEmpty() ) {
+      tip( r, tipText );
+    }
+  }
+}
+
+KNoScrollListBox::KNoScrollListBox( QWidget *parent, const char *name )
+  : QListBox( parent, name ),
+    mSqueezing( false )
+{
+  QPalette pal = palette();
+  pal.setColor( QColorGroup::Foreground, KOPrefs::instance()->agendaBgColor().dark( 150 ) );
+  pal.setColor( QColorGroup::Base, KOPrefs::instance()->agendaBgColor() );
+  setPalette( pal );
+}
+
+void KNoScrollListBox::setBackground( bool primary, bool workDay )
+{
+  QColor color;
+  if ( workDay ) {
+    color = KOPrefs::instance()->workingHoursColor();
+  } else {
+    color = KOPrefs::instance()->agendaBgColor();
+  }
+
+  QPalette pal = palette();
+  if ( primary ) {
+    pal.setColor( QColorGroup::Base, color );
+  } else {
+    pal.setColor( QColorGroup::Base, color.dark( 115 ) );
+  }
+  setPalette( pal );
+}
+
+void KNoScrollListBox::keyPressEvent( QKeyEvent *e )
+{
+  switch( e->key() ) {
+    case Key_Right:
+      scrollBy( 4, 0 );
+      break;
+    case Key_Left:
+      scrollBy( -4, 0 );
+      break;
+    case Key_Up:
+      if ( !count() ) break;
+      setCurrentItem( ( currentItem() + count() - 1 ) % count() );
+      if ( !itemVisible( currentItem() ) ) {
+        if ( (unsigned int)currentItem() == ( count() - 1 ) ) {
+          setTopItem( currentItem() - numItemsVisible() + 1 );
+        } else {
+          setTopItem( topItem() - 1 );
+        }
+      }
+      break;
+    case Key_Down:
+      if ( !count() ) break;
+      setCurrentItem( ( currentItem() + 1 ) % count() );
+      if( !itemVisible( currentItem() ) ) {
+        if( currentItem() == 0 ) {
+          setTopItem( 0 );
+        } else {
+          setTopItem( topItem() + 1 );
+        }
+      }
+    case Key_Shift:
+      emit shiftDown();
+      break;
+    default:
+      break;
+  }
+}
+
+void KNoScrollListBox::keyReleaseEvent( QKeyEvent *e )
+{
+  switch( e->key() ) {
+    case Key_Shift:
+      emit shiftUp();
+      break;
+    default:
+      break;
+  }
+}
+
+void KNoScrollListBox::mousePressEvent( QMouseEvent *e )
+{
+  QListBox::mousePressEvent( e );
+
+  if ( e->button() == RightButton ) {
+    emit rightClick();
+  }
+}
+
+void KNoScrollListBox::contentsMouseDoubleClickEvent ( QMouseEvent * e )
+{
+  QListBox::contentsMouseDoubleClickEvent( e );
+  QListBoxItem *item = itemAt( e->pos() );
+  if ( !item ) {
+    emit doubleClicked( item );
+  }
+}
+
+void KNoScrollListBox::resizeEvent( QResizeEvent *e )
+{
+  bool s = count() && ( maxItemWidth() > e->size().width() );
+  if ( mSqueezing || s )
+    triggerUpdate( false );
+
+  mSqueezing = s;
+  QListBox::resizeEvent( e );
+}
+
+MonthViewItem::MonthViewItem( Incidence *incidence, const QDateTime &qd,
+                              const QString & s ) : QListBoxItem()
+{
+  setText( s );
+
+  mIncidence = incidence;
+  mDateTime = qd;
+
+  mEventPixmap     = KOGlobals::self()->smallIcon( "appointment" );
+  mTodoPixmap      = KOGlobals::self()->smallIcon( "todo" );
+  mTodoDonePixmap  = KOGlobals::self()->smallIcon( "checkedbox" );
+  mAlarmPixmap     = KOGlobals::self()->smallIcon( "bell" );
+  mRecurPixmap     = KOGlobals::self()->smallIcon( "recur" );
+  mReplyPixmap     = KOGlobals::self()->smallIcon( "mail_reply" );
+
+  mResourceColor = QColor();
+  mEvent     = false;
+  mTodo      = false;
+  mTodoDone  = false;
+  mRecur     = false;
+  mAlarm     = false;
+  mReply     = false;
+}
+
+void MonthViewItem::paint( QPainter *p )
+{
+#if QT_VERSION >= 0x030000
+  bool sel = isSelected();
+#else
+  bool sel = selected();
+#endif
+
+  QColor bgColor = palette().color( QPalette::Normal,
+            sel ? QColorGroup::Highlight : QColorGroup::Background );
+  int offset=0;
+  if ( KOPrefs::instance()->monthViewUsesResourceColor() &&
+    mResourceColor.isValid() ) {
+    p->setBackgroundColor( mResourceColor );
+    p->eraseRect( 0, 0, listBox()->maxItemWidth(), height( listBox() ) );
+    offset=2;
+  }
+  if ( KOPrefs::instance()->monthViewUsesCategoryColor() ) {
+    p->setBackgroundColor( bgColor );
+    p->eraseRect( offset, offset, listBox()->maxItemWidth()-2*offset, height( listBox() )-2*offset );
+  }
+  int x = 3;
+// Do NOT put on the event pixmap because it takes up too much space
+//  if ( mEvent ) {
+//    p->drawPixmap( x, 0, mEventPixmap );
+//    x += mEventPixmap.width() + 2;
+//  }
+  if ( mTodo ) {
+    p->drawPixmap( x, 0, mTodoPixmap );
+    x += mTodoPixmap.width() + 2;
+  }
+  if ( mTodoDone ) {
+    p->drawPixmap( x, 0, mTodoDonePixmap );
+    x += mTodoPixmap.width() + 2;
+  }
+  if ( mRecur ) {
+    p->drawPixmap( x, 0, mRecurPixmap );
+    x += mRecurPixmap.width() + 2;
+  }
+  if ( mAlarm ) {
+    p->drawPixmap( x, 0, mAlarmPixmap );
+    x += mAlarmPixmap.width() + 2;
+  }
+  if ( mReply ) {
+    p->drawPixmap(x, 0, mReplyPixmap );
+    x += mReplyPixmap.width() + 2;
+  }
+  QFontMetrics fm = p->fontMetrics();
+  int yPos;
+  int pmheight = QMAX( mRecurPixmap.height(),
+                       QMAX( mAlarmPixmap.height(), mReplyPixmap.height() ) );
+  if( pmheight < fm.height() )
+    yPos = fm.ascent() + fm.leading()/2;
+  else
+    yPos = pmheight/2 - fm.height()/2  + fm.ascent();
+  QColor textColor = getTextColor( bgColor );
+  p->setPen( textColor );
+
+  KWordWrap::drawFadeoutText( p, x, yPos, listBox()->width() - x, text() );
+}
+
+int MonthViewItem::height( const QListBox *lb ) const
+{
+  return QMAX( QMAX( mRecurPixmap.height(), mReplyPixmap.height() ),
+               QMAX( mAlarmPixmap.height(), lb->fontMetrics().lineSpacing()+1) );
+}
+
+int MonthViewItem::width( const QListBox *lb ) const
+{
+  int x = 3;
+  if( mRecur ) {
+    x += mRecurPixmap.width()+2;
+  }
+  if( mAlarm ) {
+    x += mAlarmPixmap.width()+2;
+  }
+  if( mReply ) {
+    x += mReplyPixmap.width()+2;
+  }
+
+  return( x + lb->fontMetrics().boundingRect( text() ).width() + 1 );
+}
+
+
+MonthViewCell::MonthViewCell( KOMonthView *parent)
+  : QWidget( parent ),
+    mMonthView( parent ), mPrimary( false ), mHoliday( false )
+{
+  QVBoxLayout *topLayout = new QVBoxLayout( this );
+
+  mLabel = new QLabel( this );
+  mLabel->setFrameStyle( QFrame::Panel | QFrame::Plain );
+  mLabel->setLineWidth( 1 );
+  mLabel->setAlignment( AlignCenter );
+
+  mItemList = new KNoScrollListBox( this );
+  mItemList->setMinimumSize( 10, 10 );
+  mItemList->setFrameStyle( QFrame::Panel | QFrame::Plain );
+  mItemList->setLineWidth( 1 );
+
+  new KOMonthCellToolTip( mItemList->viewport(),
+                          static_cast<KNoScrollListBox *>( mItemList ) );
+
+  topLayout->addWidget( mItemList );
+
+  mLabel->raise();
+
+  mStandardPalette = palette();
+
+  enableScrollBars( false );
+
+  updateConfig();
+
+  connect( mItemList, SIGNAL( doubleClicked( QListBoxItem *) ),
+           SLOT( defaultAction( QListBoxItem * ) ) );
+  connect( mItemList, SIGNAL( rightButtonPressed( QListBoxItem *,
+                                                  const QPoint &) ),
+           SLOT( contextMenu( QListBoxItem * ) ) );
+  connect( mItemList, SIGNAL( clicked( QListBoxItem * ) ),
+           SLOT( select() ) );
+}
+
+void MonthViewCell::setDate( const QDate &date )
+{
+//  kdDebug(5850) << "MonthViewCell::setDate(): " << date.toString() << endl;
+
+  mDate = date;
+
+  setFrameWidth();
+
+  QString text;
+  if ( KOGlobals::self()->calendarSystem()->day( date ) == 1 ) {
+    text = i18n("'Month day' for month view cells", "%1 %2")
+        .arg( KOGlobals::self()->calendarSystem()->monthName( date, true ) )
+        .arg( KOGlobals::self()->calendarSystem()->day(mDate) );
+    QFontMetrics fm( mLabel->font() );
+    mLabel->resize( mLabelSize + QSize( fm.width( text ), 0 ) );
+  } else {
+    mLabel->resize( mLabelSize );
+    text = QString::number( KOGlobals::self()->calendarSystem()->day(mDate) );
+  }
+  mLabel->setText( text );
+
+  resizeEvent( 0 );
+}
+
+QDate MonthViewCell::date() const
+{
+  return mDate;
+}
+
+void MonthViewCell::setFrameWidth()
+{
+  // show current day with a thicker frame
+  if ( mDate == QDate::currentDate() )
+    mItemList->setLineWidth( 3 );
+  else
+    mItemList->setLineWidth( 1 );
+}
+
+void MonthViewCell::setPrimary( bool primary )
+{
+  mPrimary = primary;
+
+  if ( mPrimary ) {
+    mLabel->setBackgroundMode( PaletteBase );
+  } else {
+    mLabel->setBackgroundMode( PaletteBackground );
+  }
+
+  mItemList->setBackground( mPrimary, KOGlobals::self()->isWorkDay( mDate ) );
+}
+
+bool MonthViewCell::isPrimary() const
+{
+  return mPrimary;
+}
+
+void MonthViewCell::setHoliday( bool holiday )
+{
+  mHoliday = holiday;
+
+  if ( holiday ) {
+    setPalette( mHolidayPalette );
+  } else {
+    setPalette( mStandardPalette );
+  }
+}
+
+void MonthViewCell::setHolidayString( const QString &holiday )
+{
+  mHolidayString = holiday;
+}
+
+void MonthViewCell::updateCell()
+{
+  setFrameWidth();
+
+  if ( mDate == QDate::currentDate() ) {
+    setPalette( mTodayPalette );
+
+    QPalette pal = mItemList->palette();
+    pal.setColor( QColorGroup::Foreground, KOPrefs::instance()->highlightColor() );
+    mItemList->setPalette( pal );
+  }
+  else {
+    if ( mHoliday )
+      setPalette( mHolidayPalette );
+    else
+      setPalette( mStandardPalette );
+
+    QPalette pal = mItemList->palette();
+    pal.setColor( QColorGroup::Foreground, KOPrefs::instance()->agendaBgColor().dark( 150 ) );
+    mItemList->setPalette( pal );
+  }
+
+  mItemList->clear();
+
+  if ( !mHolidayString.isEmpty() ) {
+    MonthViewItem *item = new MonthViewItem( 0, QDateTime( mDate ), mHolidayString );
+    item->setPalette( mHolidayPalette );
+    mItemList->insertItem( item );
+  }
+}
+
+class MonthViewCell::CreateItemVisitor :
+      public IncidenceBase::Visitor
+{
+  public:
+    CreateItemVisitor() : mItem(0) { emails = KOPrefs::instance()->allEmails(); }
+
+    bool act( IncidenceBase *incidence, QDate date, QPalette stdPal, int multiDay )
+    {
+      mItem = 0;
+      mDate = date;
+      mStandardPalette = stdPal;
+      mMultiDay = multiDay;
+      return incidence->accept( *this );
+    }
+    MonthViewItem *item() const { return mItem; }
+    QStringList emails;
+
+  protected:
+    bool visit( Event *event ) {
+      QString text;
+      QDateTime dt( mDate );
+      // take the time 0:00 into account, which is non-inclusive
+      QDate dtEnd = event->dtEnd().addSecs( event->doesFloat() ? 0 : -1).date();
+      int length = event->dtStart().daysTo( dtEnd );
+      if ( event->isMultiDay() ) {
+        if (  mDate == event->dtStart().date()
+           || ( mMultiDay == 0 && event->recursOn( mDate ) ) ) {
+          text = "(-- " + event->summary();
+          dt = event->dtStart();
+        } else if ( !event->doesRecur() && mDate == dtEnd
+                 // last day of a recurring multi-day event?
+                 || ( mMultiDay == length && event->recursOn( mDate.addDays( -length ) ) ) ) {
+          text = event->summary() + " --)";
+        } else if (!(event->dtStart().date().daysTo(mDate) % 7) && length > 7 ) {
+          text = "-- " + event->summary() + " --";
+        } else {
+          text = "----------------";
+          dt = QDateTime( mDate );
+        }
+      } else {
+        if (event->doesFloat())
+          text = event->summary();
+        else {
+          text = KGlobal::locale()->formatTime(event->dtStart().time());
+          dt.setTime( event->dtStart().time() );
+          text += ' ' + event->summary();
+        }
+      }
+
+      mItem = new MonthViewItem( event, dt, text );
+      mItem->setEvent( true );
+      if (KOPrefs::instance()->monthViewUsesCategoryColor()) {
+        QStringList categories = event->categories();
+        QString cat = categories.first();
+        if (cat.isEmpty()) {
+          mItem->setPalette(QPalette(KOPrefs::instance()->mEventColor, KOPrefs::instance()->mEventColor));
+        } else {
+          mItem->setPalette(QPalette(*(KOPrefs::instance()->categoryColor(cat)), *(KOPrefs::instance()->categoryColor(cat))));
+        }
+      } else {
+        mItem->setPalette( mStandardPalette );
+      }
+
+      Attendee *me = event->attendeeByMails( emails );
+      if ( me != 0 ) {
+        mItem->setReply( me->status() == Attendee::NeedsAction && me->RSVP() );
+      } else
+        mItem->setReply(false);
+      return true;
+    }
+    bool visit( Todo *todo ) {
+      QString text;
+      if ( !KOPrefs::instance()->showAllDayTodo() )
+        return false;
+      QDateTime dt( mDate );
+      if ( todo->hasDueDate() && !todo->doesFloat() ) {
+        text += KGlobal::locale()->formatTime( todo->dtDue().time() );
+        text += ' ';
+        dt.setTime( todo->dtDue().time() );
+      }
+      text += todo->summary();
+
+      mItem = new MonthViewItem( todo, dt, text );
+      if ( todo->doesRecur() ) {
+        mDate < todo->dtDue().date() ?
+        mItem->setTodoDone( true ) : mItem->setTodo( true );
+      }
+      else
+        todo->isCompleted() ? mItem->setTodoDone( true ) : mItem->setTodo( true );
+      mItem->setPalette( mStandardPalette );
+      return true;
+    }
+  protected:
+    MonthViewItem *mItem;
+    QDate mDate;
+    QPalette mStandardPalette;
+    int mMultiDay;
+};
+
+
+void MonthViewCell::addIncidence( Incidence *incidence, CreateItemVisitor& v, int multiDay )
+{
+  if ( v.act( incidence, mDate, mStandardPalette, multiDay ) ) {
+    MonthViewItem *item = v.item();
+    if ( item ) {
+      item->setAlarm( incidence->isAlarmEnabled() );
+      item->setRecur( incidence->recurrenceType() );
+
+      QColor resourceColor = KOHelper::resourceColor( mCalendar, incidence );
+      if ( !resourceColor.isValid() )
+        resourceColor = KOPrefs::instance()->mEventColor;
+      item->setResourceColor( resourceColor );
+
+      // FIXME: Find the correct position (time-wise) to insert the item.
+      //        Currently, the items are displayed in "random" order instead of
+      //        chronologically sorted.
+      uint i = 0;
+      int pos = -1;
+      QDateTime dt( item->incidenceDateTime() );
+
+      while ( i < mItemList->count() && pos<0 ) {
+        QListBoxItem *item = mItemList->item( i );
+        MonthViewItem *mvitem = dynamic_cast<MonthViewItem*>( item );
+        if ( mvitem && mvitem->incidenceDateTime()>dt ) {
+          pos = i;
+        }
+        ++i;
+      }
+      mItemList->insertItem( item, pos );
+    }
+  }
+}
+
+void MonthViewCell::removeIncidence( Incidence *incidence )
+{
+  for ( uint i = 0; i < mItemList->count(); ++i ) {
+    MonthViewItem *item = static_cast<MonthViewItem *>(mItemList->item( i ) );
+    if ( item && item->incidence() &&
+         item->incidence()->uid() == incidence->uid() ) {
+      mItemList->removeItem( i );
+      --i;
+    }
+  }
+}
+
+void MonthViewCell::updateConfig()
+{
+  setFont( KOPrefs::instance()->mMonthViewFont );
+
+  QFontMetrics fm( font() );
+  mLabelSize = fm.size( 0, "30" ) +
+               QSize( mLabel->frameWidth() * 2, mLabel->frameWidth() * 2 ) +
+               QSize( 2, 2 );
+//  mStandardPalette = mOriginalPalette;
+  QColor bg = mStandardPalette.color( QPalette::Active, QColorGroup::Background );
+  int h,s,v;
+  bg.getHsv( &h, &s, &v );
+  if ( date().month() %2 == 0 ) {
+    if ( v < 128 ) {
+      bg = bg.light( 125 );
+    } else {
+      bg = bg.dark( 125 );
+    }
+  }
+  setPaletteBackgroundColor( bg );
+//  mStandardPalette.setColor( QColorGroup::Background, bg);*/
+
+  mHolidayPalette = mStandardPalette;
+  mHolidayPalette.setColor( QColorGroup::Foreground,
+                            KOPrefs::instance()->holidayColor() );
+  mHolidayPalette.setColor( QColorGroup::Text,
+                            KOPrefs::instance()->holidayColor() );
+  mTodayPalette = mStandardPalette;
+  mTodayPalette.setColor( QColorGroup::Foreground,
+                          KOPrefs::instance()->highlightColor() );
+  mTodayPalette.setColor( QColorGroup::Text,
+                          KOPrefs::instance()->highlightColor() );
+  updateCell();
+
+  mItemList->setBackground( mPrimary, KOGlobals::self()->isWorkDay( mDate ) );
+}
+
+void MonthViewCell::enableScrollBars( bool enabled )
+{
+  if ( enabled ) {
+    mItemList->setVScrollBarMode( QScrollView::Auto );
+    mItemList->setHScrollBarMode( QScrollView::Auto );
+  } else {
+    mItemList->setVScrollBarMode( QScrollView::AlwaysOff );
+    mItemList->setHScrollBarMode( QScrollView::AlwaysOff );
+  }
+}
+
+Incidence *MonthViewCell::selectedIncidence()
+{
+  int index = mItemList->currentItem();
+  if ( index < 0 ) return 0;
+
+  MonthViewItem *item =
+      static_cast<MonthViewItem *>( mItemList->item( index ) );
+
+  if ( !item ) return 0;
+
+  return item->incidence();
+}
+
+QDate MonthViewCell::selectedIncidenceDate()
+{
+  QDate qd;
+  int index = mItemList->currentItem();
+  if ( index < 0 ) return qd;
+
+  MonthViewItem *item =
+      static_cast<MonthViewItem *>( mItemList->item( index ) );
+
+  if ( !item ) return qd;
+
+  return item->incidenceDateTime().date();
+}
+
+void MonthViewCell::select()
+{
+  // setSelectedCell will deselect currently selected cells
+  mMonthView->setSelectedCell( this );
+
+  if( KOPrefs::instance()->enableMonthScroll() )
+    enableScrollBars( true );
+
+  // don't mess up the cell when it represents today
+  if( mDate != QDate::currentDate() ) {
+    mItemList->setFrameStyle( QFrame::Sunken | QFrame::Panel );
+    mItemList->setLineWidth( 3 );
+  }
+}
+
+void MonthViewCell::deselect()
+{
+  mItemList->clearSelection();
+  mItemList->setFrameStyle( QFrame::Plain | QFrame::Panel );
+  setFrameWidth();
+
+  enableScrollBars( false );
+}
+
+void MonthViewCell::resizeEvent ( QResizeEvent * )
+{
+  mLabel->move( width() - mLabel->width(), height() - mLabel->height() );
+}
+
+void MonthViewCell::defaultAction( QListBoxItem *item )
+{
+  select();
+
+  if ( !item ) {
+    emit newEventSignal( date() );
+  } else {
+    MonthViewItem *eventItem = static_cast<MonthViewItem *>( item );
+    Incidence *incidence = eventItem->incidence();
+    if ( incidence ) mMonthView->defaultAction( incidence );
+  }
+}
+
+void MonthViewCell::contextMenu( QListBoxItem *item )
+{
+  select();
+
+  if ( item ) {
+    MonthViewItem *eventItem = static_cast<MonthViewItem *>( item );
+    Incidence *incidence = eventItem->incidence();
+    if ( incidence ) mMonthView->showEventContextMenu( incidence, date() );
+  }
+  else {
+    mMonthView->showGeneralContextMenu();
+  }
+}
+
+
+KOMonthView::KOMonthView( Calendar *calendar, QWidget *parent, const char *name )
+    : KOEventView( calendar, parent, name ),
+      mDaysPerWeek( 7 ), mNumWeeks( 6 ), mNumCells( mDaysPerWeek * mNumWeeks ),
+      mShortDayLabels( false ), mWidthLongDayLabel( 0 ), mSelectedCell( 0 )
+{
+  mCells.setAutoDelete( true );
+
+  QGridLayout *dayLayout = new QGridLayout( this );
+
+  QFont bfont = font();
+  bfont.setBold( true );
+
+  QFont mfont = bfont;
+  mfont.setPointSize( 20 );
+
+  // month name on top
+  mLabel = new QLabel( this );
+  mLabel->setFont( mfont );
+  mLabel->setAlignment( AlignCenter );
+  mLabel->setLineWidth( 0 );
+  mLabel->setFrameStyle( QFrame::Plain );
+
+  dayLayout->addMultiCellWidget( mLabel, 0, 0, 0, mDaysPerWeek );
+
+  // create the day of the week labels (Sun, Mon, etc) and add them to
+  // the layout.
+  mDayLabels.resize( mDaysPerWeek );
+  int i;
+  for( i = 0; i < mDaysPerWeek; i++ ) {
+    QLabel *label = new QLabel( this );
+    label->setFont( bfont );
+    label->setFrameStyle( QFrame::Panel | QFrame::Raised );
+    label->setLineWidth( 1 );
+    label->setAlignment( AlignCenter );
+
+    mDayLabels.insert( i, label );
+
+    dayLayout->addWidget( label, 1, i );
+    dayLayout->addColSpacing( i, 10 );
+    dayLayout->setColStretch( i, 1 );
+  }
+
+  int row, col;
+
+  mCells.resize( mNumCells );
+  for( row = 0; row < mNumWeeks; ++row ) {
+    for( col = 0; col < mDaysPerWeek; ++col ) {
+      MonthViewCell *cell = new MonthViewCell( this );
+      cell->setCalendar(calendar);
+      mCells.insert( row * mDaysPerWeek + col, cell );
+      dayLayout->addWidget( cell, row + 2, col );
+
+      connect( cell, SIGNAL( defaultAction( Incidence * ) ),
+               SLOT( defaultAction( Incidence * ) ) );
+      connect( cell, SIGNAL( newEventSignal( const QDate & ) ),
+               SIGNAL( newEventSignal( const QDate & ) ) );
+    }
+    dayLayout->setRowStretch( row + 2, 1 );
+  }
+
+  mEventContextMenu = eventPopup();
+
+  updateConfig();
+
+  emit incidenceSelected( 0 );
+}
+
+KOMonthView::~KOMonthView()
+{
+  delete mEventContextMenu;
+}
+
+int KOMonthView::maxDatesHint()
+{
+  return mNumCells;
+}
+
+int KOMonthView::currentDateCount()
+{
+  return mNumCells;
+}
+
+Incidence::List KOMonthView::selectedIncidences()
+{
+  Incidence::List selected;
+
+  if ( mSelectedCell ) {
+    Incidence *incidence = mSelectedCell->selectedIncidence();
+    if ( incidence ) selected.append( incidence );
+  }
+
+  return selected;
+}
+
+DateList KOMonthView::selectedDates()
+{
+  DateList selected;
+
+  if ( mSelectedCell ) {
+    QDate qd = mSelectedCell->selectedIncidenceDate();
+    if ( qd.isValid() ) selected.append( qd );
+  }
+
+  return selected;
+}
+
+bool KOMonthView::eventDurationHint( QDateTime &startDt, QDateTime &endDt, bool &allDay )
+{
+  if ( mSelectedCell ) {
+    startDt.setDate( mSelectedCell->date() );
+    endDt.setDate( mSelectedCell->date() );
+    allDay = true;
+    return true;
+  }
+  return false;
+}
+
+void KOMonthView::updateConfig()
+{
+  mWeekStartDay = KGlobal::locale()->weekStartDay();
+
+  QFontMetrics fontmetric( mDayLabels[0]->font() );
+  mWidthLongDayLabel = 0;
+
+  for ( int i = 0; i < 7; ++i ) {
+    int width =
+        fontmetric.width( KOGlobals::self()->calendarSystem()->weekDayName( i + 1 ) );
+    if ( width > mWidthLongDayLabel ) mWidthLongDayLabel = width;
+  }
+
+  updateDayLabels();
+
+  for ( uint i = 0; i < mCells.count(); ++i ) {
+    mCells[i]->updateConfig();
+  }
+}
+
+void KOMonthView::updateDayLabels()
+{
+  kdDebug(5850) << "KOMonthView::updateDayLabels()" << endl;
+
+  const KCalendarSystem*calsys=KOGlobals::self()->calendarSystem();
+  int currDay;
+  for ( int i = 0; i < 7; i++ ) {
+    currDay = i+mWeekStartDay;
+    if ( currDay > 7 ) currDay -= 7;
+    mDayLabels[i]->setText( calsys->weekDayName( currDay, mShortDayLabels ) );
+  }
+}
+
+void KOMonthView::showDates( const QDate &start, const QDate & )
+{
+//  kdDebug(5850) << "KOMonthView::showDates(): " << start.toString() << endl;
+
+  const KCalendarSystem *calSys = KOGlobals::self()->calendarSystem();
+
+  mDateToCell.clear();
+
+  // show first day of month on top for readability issues
+  mStartDate = start.addDays( -start.day() + 1 );
+  // correct begin of week
+  int weekdayCol=( mStartDate.dayOfWeek() + 7 - mWeekStartDay ) % 7;
+  mStartDate = mStartDate.addDays( -weekdayCol );
+
+  mLabel->setText( i18n( "monthname year", "%1 %2" )
+                   .arg( calSys->monthName( start ) )
+                   .arg( calSys->year( start ) ) );
+  if ( !KOPrefs::instance()->fullViewMonth() ) {
+    mLabel->show();
+  } else {
+    mLabel->hide();
+  }
+
+  bool primary = false;
+  uint i;
+  for( i = 0; i < mCells.size(); ++i ) {
+    QDate date = mStartDate.addDays( i );
+    if ( calSys->day( date ) == 1 ) {
+      primary = !primary;
+    }
+
+    mCells[i]->setDate( date );
+    mDateToCell[ date ] = mCells[ i ];
+    if( date == start )
+      mCells[i]->select();
+
+    mCells[i]->setPrimary( primary );
+
+    bool isHoliday = calSys->dayOfWeek( date ) == calSys->weekDayOfPray()
+                  || !KOGlobals::self()->isWorkDay( date );
+    mCells[i]->setHoliday( isHoliday );
+
+    // add holiday, if present
+    QStringList holidays( KOGlobals::self()->holiday( date ) );
+    mCells[i]->setHolidayString( holidays.join( i18n("delimiter for joining holiday names", ", " ) ) );
+  }
+
+  updateView();
+}
+
+void KOMonthView::showIncidences( const Incidence::List & )
+{
+  kdDebug(5850) << "KOMonthView::showIncidences( const Incidence::List & ) is not implemented yet." << endl;
+}
+
+class KOMonthView::GetDateVisitor : public IncidenceBase::Visitor
+{
+  public:
+    GetDateVisitor() {}
+
+    bool act( IncidenceBase *incidence )
+    {
+      return incidence->accept( *this );
+    }
+    QDateTime startDate() const { return mStartDate; }
+    QDateTime endDate() const { return mEndDate; }
+
+  protected:
+    bool visit( Event *event ) {
+      mStartDate = event->dtStart();
+      mEndDate = event->dtEnd();
+      return true;
+    }
+    bool visit( Todo *todo ) {
+      if ( todo->hasDueDate() ) {
+        mStartDate = todo->dtDue();
+        mEndDate = todo->dtDue();
+      }// else
+//         return false;
+      return true;
+    }
+    bool visit( Journal *journal ) {
+      mStartDate = journal->dtStart();
+      mEndDate = journal->dtStart();
+      return true;
+    }
+  protected:
+    QDateTime mStartDate;
+    QDateTime mEndDate;
+};
+
+void KOMonthView::changeIncidenceDisplayAdded( Incidence *incidence, MonthViewCell::CreateItemVisitor& v)
+{
+  GetDateVisitor gdv;
+
+  if ( !gdv.act( incidence ) ) {
+    kdDebug(5850) << "Visiting GetDateVisitor failed." << endl;
+    return;
+  }
+
+  bool floats = incidence->doesFloat();
+
+  if ( incidence->doesRecur() ) {
+    for ( uint i = 0; i < mCells.count(); ++i ) {
+      if ( incidence->recursOn( mCells[i]->date() ) ) {
+
+        // handle multiday events
+        int length = gdv.startDate().daysTo( gdv.endDate().addSecs( floats ? 0 : -1 ).date() );
+        for ( int j = 0; j <= length && i+j < mCells.count(); ++j ) {
+          mCells[i+j]->addIncidence( incidence, v, j );
+        }
+      }
+    }
+  } else {
+    // addSecs(-1) is added to handle 0:00 cases (because it's non-inclusive according to rfc)
+    if ( gdv.endDate().isValid() ) {
+      QDate endDate = gdv.endDate().addSecs( floats ? 0 : -1).date();
+      for ( QDate date = gdv.startDate().date();
+            date <= endDate; date = date.addDays( 1 ) ) {
+        MonthViewCell *mvc = mDateToCell[ date ];
+        if ( mvc ) mvc->addIncidence( incidence, v );
+      }
+    }
+  }
+}
+
+void KOMonthView::changeIncidenceDisplay( Incidence *incidence, int action )
+{
+  MonthViewCell::CreateItemVisitor v;
+  switch ( action ) {
+    case KOGlobals::INCIDENCEADDED:
+      changeIncidenceDisplayAdded( incidence, v );
+      break;
+    case KOGlobals::INCIDENCEEDITED:
+      for( uint i = 0; i < mCells.count(); i++ )
+        mCells[i]->removeIncidence( incidence );
+      changeIncidenceDisplayAdded( incidence, v );
+      break;
+    case KOGlobals::INCIDENCEDELETED:
+      for( uint i = 0; i < mCells.count(); i++ )
+        mCells[i]->removeIncidence( incidence );
+      break;
+    default:
+      return;
+  }
+}
+
+void KOMonthView::updateView()
+{
+  for( uint i = 0; i < mCells.count(); ++i ) {
+    mCells[i]->updateCell();
+  }
+
+  Incidence::List incidences = calendar()->incidences();
+  Incidence::List::ConstIterator it;
+
+  MonthViewCell::CreateItemVisitor v;
+  for ( it = incidences.begin(); it != incidences.end(); ++it )
+    changeIncidenceDisplayAdded( *it, v );
+
+  processSelectionChange();
+}
+
+void KOMonthView::resizeEvent( QResizeEvent * )
+{
+  // select the appropriate heading string size. E.g. "Wednesday" or "Wed".
+  // note this only changes the text if the requested size crosses the
+  // threshold between big enough to support the full name and not big
+  // enough.
+  if( mDayLabels[0]->width() < mWidthLongDayLabel ) {
+    if ( !mShortDayLabels ) {
+      mShortDayLabels = true;
+      updateDayLabels();
+    }
+  } else {
+    if ( mShortDayLabels ) {
+      mShortDayLabels = false;
+      updateDayLabels();
+    }
+  }
+}
+
+void KOMonthView::showEventContextMenu( Incidence *incidence, const QDate &qd )
+{
+  mEventContextMenu->showIncidencePopup( incidence, qd );
+}
+
+void KOMonthView::showGeneralContextMenu()
+{
+  showNewEventPopup();
+}
+
+void KOMonthView::setSelectedCell( MonthViewCell *cell )
+{
+  if ( mSelectedCell && cell != mSelectedCell )
+    mSelectedCell->deselect();
+
+  mSelectedCell = cell;
+
+  if ( !mSelectedCell )
+    emit incidenceSelected( 0 );
+  else
+    emit incidenceSelected( mSelectedCell->selectedIncidence() );
+}
+
+void KOMonthView::processSelectionChange()
+{
+  Incidence::List incidences = selectedIncidences();
+  if (incidences.count() > 0) {
+    emit incidenceSelected( incidences.first() );
+  } else {
+    emit incidenceSelected( 0 );
+  }
+}
+
+void KOMonthView::clearSelection()
+{
+  if ( mSelectedCell ) {
+    mSelectedCell->deselect();
+    mSelectedCell = 0;
+  }
+}