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, 869 insertions, 0 deletions

diff --git a/certmanager/lib/ui/keylistview.cpp b/certmanager/lib/ui/keylistview.cpp
new file mode 100644
index 000000000..98534a4b7
--- /dev/null
+++ b/certmanager/lib/ui/keylistview.cpp
@@ -0,0 +1,869 @@
+/*
+    keylistview.cpp
+
+    This file is part of libkleopatra, the KDE keymanagement library
+    Copyright (c) 2004 Klar�lvdalens Datakonsult AB
+
+    Libkleopatra 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.
+
+    Libkleopatra 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
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of this program with any edition of
+    the Qt library by Trolltech AS, Norway (or with modified versions
+    of Qt that use the same license as Qt), and distribute linked
+    combinations including the two.  You must obey the GNU General
+    Public License in all respects for all of the code used other than
+    Qt.  If you modify this file, you may extend this exception to
+    your version of the file, but you are not obligated to do so.  If
+    you do not wish to do so, delete this exception statement from
+    your version.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "keylistview.h"
+
+#include <kdebug.h>
+
+#include <qfontmetrics.h>
+#include <qtooltip.h>
+#include <qrect.h>
+#include <qheader.h>
+#include <qpoint.h>
+#include <qptrlist.h>
+#include <qpainter.h>
+#include <qfont.h>
+#include <qcolor.h>
+#include <qtimer.h>
+#include <qcstring.h>
+
+#include <gpgmepp/key.h>
+
+#include <vector>
+#include <map>
+
+#include <assert.h>
+
+static const int updateDelayMilliSecs = 500;
+
+namespace {
+
+  class ItemToolTip : public QToolTip {
+  public:
+    ItemToolTip( Kleo::KeyListView * parent );
+  protected:
+    void maybeTip( const QPoint & p );
+  private:
+    Kleo::KeyListView * mKeyListView;
+  };
+
+  ItemToolTip::ItemToolTip( Kleo::KeyListView * parent )
+    : QToolTip( parent->viewport() ), mKeyListView( parent ) {}
+
+  void ItemToolTip::maybeTip( const QPoint & p ) {
+    if ( !mKeyListView )
+      return;
+
+    const QListViewItem * item = mKeyListView->itemAt( p );
+    if ( !item )
+      return;
+
+    const QRect itemRect = mKeyListView->itemRect( item );
+    if ( !itemRect.isValid() )
+      return;
+
+    const int col = mKeyListView->header()->sectionAt( p.x() );
+    if ( col == -1 )
+      return;
+
+    const QRect headerRect = mKeyListView->header()->sectionRect( col );
+    if ( !headerRect.isValid() )
+      return;
+
+    const QRect cellRect( headerRect.left(), itemRect.top(),
+			  headerRect.width(), itemRect.height() );
+
+    QString tipStr;
+    if ( const Kleo::KeyListViewItem * klvi = Kleo::lvi_cast<Kleo::KeyListViewItem>( item ) )
+      tipStr = klvi->toolTip( col );
+    else
+      tipStr = item->text( col ) ;
+
+    if ( !tipStr.isEmpty() )
+      tip( cellRect, tipStr );
+  }
+
+} // anon namespace
+
+struct Kleo::KeyListView::Private {
+  Private() : updateTimer( 0 ), itemToolTip( 0 ) {}
+
+  std::vector<GpgME::Key> keyBuffer;
+  QTimer * updateTimer;
+  QToolTip * itemToolTip;
+  std::map<QCString,KeyListViewItem*> itemMap;
+};
+
+// a list of signals where we want to replace QListViewItem with
+// Kleo:KeyListViewItem:
+static const struct {
+  const char * source;
+  const char * target;
+} signalReplacements[] = {
+  { SIGNAL(doubleClicked(QListViewItem*,const QPoint&,int)),
+    SLOT(slotEmitDoubleClicked(QListViewItem*,const QPoint&,int)) },
+  { SIGNAL(returnPressed(QListViewItem*)),
+    SLOT(slotEmitReturnPressed(QListViewItem*)) },
+  { SIGNAL(selectionChanged(QListViewItem*)),
+    SLOT(slotEmitSelectionChanged(QListViewItem*)) },
+  { SIGNAL(contextMenu(KListView*, QListViewItem*,const QPoint&)),
+    SLOT(slotEmitContextMenu(KListView*, QListViewItem*,const QPoint&)) },
+};
+static const int numSignalReplacements = sizeof signalReplacements / sizeof *signalReplacements;
+
+
+Kleo::KeyListView::KeyListView( const ColumnStrategy * columnStrategy, const DisplayStrategy * displayStrategy, QWidget * parent, const char * name, WFlags f )
+  : KListView( parent, name ),
+    mColumnStrategy( columnStrategy ),
+    mDisplayStrategy ( displayStrategy  ),
+    mHierarchical( false )
+{
+  setWFlags( f );
+
+  d = new Private();
+
+  d->updateTimer = new QTimer( this );
+  connect( d->updateTimer, SIGNAL(timeout()), SLOT(slotUpdateTimeout()) );
+
+  if ( !columnStrategy ) {
+    kdWarning(5150) << "Kleo::KeyListView: need a column strategy to work with!" << endl;
+    return;
+  }
+
+  const QFontMetrics fm = fontMetrics();
+
+  for ( int col = 0 ; !columnStrategy->title( col ).isEmpty() ; ++col ) {
+    addColumn( columnStrategy->title( col ), columnStrategy->width( col, fm ) );
+    setColumnWidthMode( col, columnStrategy->widthMode( col ) );
+  }
+
+  setAllColumnsShowFocus( true );
+  setShowToolTips( false ); // we do it instead...
+
+  for ( int i = 0 ; i < numSignalReplacements ; ++i )
+    connect( this, signalReplacements[i].source, signalReplacements[i].target );
+
+  QToolTip::remove( this );
+  QToolTip::remove( viewport() ); // make double sure :)
+  d->itemToolTip = new ItemToolTip( this );
+}
+
+Kleo::KeyListView::~KeyListView() {
+  d->updateTimer->stop();
+  // need to clear here, since in ~QListView, our children won't have
+  // a valid listView() pointing to us anymore, and their dtors try to
+  // unregister from us.
+  clear();
+  assert( d->itemMap.size() == 0 );
+  // need to delete the tooltip ourselves, as ~QToolTip isn't virtual :o
+  delete d->itemToolTip; d->itemToolTip = 0;
+  delete d; d = 0;
+  delete mColumnStrategy; mColumnStrategy = 0;
+  delete mDisplayStrategy; mDisplayStrategy = 0;
+}
+
+void Kleo::KeyListView::insertItem( QListViewItem * qlvi ) {
+  //kdDebug() << "Kleo::KeyListView::insertItem( " << qlvi << " )" << endl;
+  KListView::insertItem( qlvi );
+  if ( KeyListViewItem * item = lvi_cast<KeyListViewItem>( qlvi ) )
+    registerItem( item );
+}
+
+void Kleo::KeyListView::takeItem( QListViewItem * qlvi ) {
+  //kdDebug() << "Kleo::KeyListView::takeItem( " << qlvi << " )" << endl;
+  if ( KeyListViewItem * item = lvi_cast<KeyListViewItem>( qlvi ) )
+    deregisterItem( item );
+  KListView::takeItem( qlvi );
+}
+
+
+void Kleo::KeyListView::setHierarchical( bool hier ) {
+  if ( hier == mHierarchical )
+    return;
+  mHierarchical = hier;
+  if ( hier )
+    gatherScattered();
+  else
+    scatterGathered( firstChild() );
+}
+
+void Kleo::KeyListView::slotAddKey( const GpgME::Key & key ) {
+  if ( key.isNull() )
+    return;
+
+  d->keyBuffer.push_back( key );
+  if ( !d->updateTimer->isActive() )
+    d->updateTimer->start( updateDelayMilliSecs, true /* single-shot */ );
+}
+
+void Kleo::KeyListView::slotUpdateTimeout() {
+  if ( d->keyBuffer.empty() )
+    return;
+
+  const bool wasUpdatesEnabled = viewport()->isUpdatesEnabled();
+  if ( wasUpdatesEnabled )
+    viewport()->setUpdatesEnabled( false );
+  kdDebug( 5150 ) << "Kleo::KeyListView::slotUpdateTimeout(): processing "
+		  << d->keyBuffer.size() << " items en block" << endl;
+  if ( hierarchical() ) {
+    for ( std::vector<GpgME::Key>::const_iterator it = d->keyBuffer.begin() ; it != d->keyBuffer.end() ; ++it )
+      doHierarchicalInsert( *it );
+    gatherScattered();
+  } else {
+    for ( std::vector<GpgME::Key>::const_iterator it = d->keyBuffer.begin() ; it != d->keyBuffer.end() ; ++it )
+      (void)new KeyListViewItem( this, *it );
+  }
+  if ( wasUpdatesEnabled )
+    viewport()->setUpdatesEnabled( true );
+  d->keyBuffer.clear();
+}
+
+void Kleo::KeyListView::clear() {
+  d->updateTimer->stop();
+  d->keyBuffer.clear();
+  KListView::clear();
+}
+
+void Kleo::KeyListView::registerItem( KeyListViewItem * item ) {
+  //kdDebug() << "registerItem( " << item << " )" << endl;
+  if ( !item )
+    return;
+  const QCString fpr = item->key().primaryFingerprint();
+  if ( !fpr.isEmpty() )
+    d->itemMap.insert( std::make_pair( fpr, item ) );
+}
+
+void Kleo::KeyListView::deregisterItem( const KeyListViewItem * item ) {
+  //kdDebug() << "deregisterItem( KeyLVI: " << item << " )" << endl;
+  if ( !item )
+    return;
+  std::map<QCString,KeyListViewItem*>::iterator it
+    = d->itemMap.find( item->key().primaryFingerprint() );
+  if ( it == d->itemMap.end() )
+    return;
+  Q_ASSERT( it->second == item );
+  if ( it->second != item )
+    return;
+  d->itemMap.erase( it );
+}
+
+void Kleo::KeyListView::doHierarchicalInsert( const GpgME::Key & key ) {
+  const QCString fpr = key.primaryFingerprint();
+  if ( fpr.isEmpty() )
+    return;
+  KeyListViewItem * item = 0;
+  if ( !key.isRoot() )
+    if ( KeyListViewItem * parent = itemByFingerprint( key.chainID() ) ) {
+      item = new KeyListViewItem( parent, key );
+      parent->setOpen( true );
+    }
+  if ( !item )
+    item = new KeyListViewItem( this, key ); // top-level (for now)
+
+  d->itemMap.insert( std::make_pair( fpr, item ) );
+}
+
+void Kleo::KeyListView::gatherScattered() {
+  KeyListViewItem * item = firstChild();
+  while ( item ) {
+    KeyListViewItem * cur = item;
+    item = item->nextSibling();
+    if ( cur->key().isRoot() )
+      continue;
+    if ( KeyListViewItem * parent = itemByFingerprint( cur->key().chainID() ) ) {
+      // found a new parent...
+      // ### todo: optimize by suppressing removing/adding the item to the itemMap...
+      takeItem( cur );
+      parent->insertItem( cur );
+      parent->setOpen( true );
+    }
+  }
+}
+
+void Kleo::KeyListView::scatterGathered( QListViewItem * start ) {
+  QListViewItem * item = start;
+  while ( item ) {
+    QListViewItem * cur = item;
+    item = item->nextSibling();
+
+    scatterGathered( cur->firstChild() );
+    assert( cur->childCount() == 0 );
+
+    // ### todo: optimize by suppressing removing/adding the item to the itemMap...
+    if ( cur->parent() )
+      cur->parent()->takeItem( cur );
+    else
+      takeItem( cur );
+    insertItem( cur );
+  }
+}
+
+Kleo::KeyListViewItem * Kleo::KeyListView::itemByFingerprint( const QCString & s ) const {
+  if ( s.isEmpty() )
+    return 0;
+  const std::map<QCString,KeyListViewItem*>::const_iterator it = d->itemMap.find( s );
+  if ( it == d->itemMap.end() )
+    return 0;
+  return it->second;
+}
+  
+
+void Kleo::KeyListView::slotRefreshKey( const GpgME::Key & key ) {
+  const char * fpr = key.primaryFingerprint();
+  if ( !fpr )
+    return;
+  if ( KeyListViewItem * item = itemByFingerprint( fpr ) )
+    item->setKey ( key );
+  else
+    // none found -> add it
+    slotAddKey( key );
+}
+
+// slots for the emission of covariant signals:
+
+void Kleo::KeyListView::slotEmitDoubleClicked( QListViewItem * item, const QPoint & p, int col ) {
+  if ( !item || lvi_cast<KeyListViewItem>( item ) )
+    emit doubleClicked( static_cast<KeyListViewItem*>( item ), p, col );
+}
+
+void Kleo::KeyListView::slotEmitReturnPressed( QListViewItem * item ) {
+  if ( !item || lvi_cast<KeyListViewItem>( item ) )
+    emit returnPressed( static_cast<KeyListViewItem*>( item ) );
+}
+
+void Kleo::KeyListView::slotEmitSelectionChanged( QListViewItem * item ) {
+  if ( !item || lvi_cast<KeyListViewItem>( item ) )
+    emit selectionChanged( static_cast<KeyListViewItem*>( item ) );
+}
+
+void Kleo::KeyListView::slotEmitContextMenu( KListView*, QListViewItem * item, const QPoint & p ) {
+  if ( !item || lvi_cast<KeyListViewItem>( item ) )
+    emit contextMenu( static_cast<KeyListViewItem*>( item ), p );
+}
+
+//
+//
+// KeyListViewItem
+//
+//
+
+Kleo::KeyListViewItem::KeyListViewItem( KeyListView * parent, const GpgME::Key & key )
+  : QListViewItem( parent )
+{
+  setKey( key );
+}
+
+Kleo::KeyListViewItem::KeyListViewItem( KeyListView * parent, KeyListViewItem * after, const GpgME::Key & key )
+  : QListViewItem( parent, after )
+{
+  setKey( key );
+}
+
+Kleo::KeyListViewItem::KeyListViewItem( KeyListViewItem * parent, const GpgME::Key & key )
+  : QListViewItem( parent )
+{
+  setKey( key );
+}
+
+Kleo::KeyListViewItem::KeyListViewItem( KeyListViewItem * parent, KeyListViewItem * after, const GpgME::Key & key )
+  : QListViewItem( parent, after )
+{
+  setKey( key );
+}
+
+Kleo::KeyListViewItem::~KeyListViewItem() {
+  // delete the children first... When children are deleted in the
+  // QLVI dtor, they don't have listView() anymore, thus they don't
+  // call deregister( this ), leading to stale entries in the
+  // itemMap...
+  while ( QListViewItem * item = firstChild() )
+    delete item;
+  // better do this here, too, since deletion is top-down and thus
+  // we're deleted when our parent item is no longer a
+  // KeyListViewItem, but a mere QListViewItem, so our takeItem()
+  // overload is gone by that time...
+  if ( KeyListView * lv = listView() )
+    lv->deregisterItem( this );
+}
+
+void Kleo::KeyListViewItem::setKey( const GpgME::Key & key ) {
+  KeyListView * lv = listView();
+  if ( lv )
+    lv->deregisterItem( this );
+  mKey = key;
+  if ( lv )
+    lv->registerItem( this );
+
+  // the ColumnStrategy operations might be very slow, so cache their
+  // result here, where we're non-const :)
+  const Kleo::KeyListView::ColumnStrategy * cs = lv ? lv->columnStrategy() : 0 ;
+  if ( !cs )
+    return;
+  const int numCols = lv ? lv->columns() : 0 ;
+  for ( int i = 0 ; i < numCols ; ++i ) {
+    setText( i, cs->text( key, i ) );
+    if ( const QPixmap * pix = cs->pixmap( key, i ) )
+      setPixmap( i, *pix );
+  }
+  repaint();
+}
+
+QString Kleo::KeyListViewItem::toolTip( int col ) const {
+  return listView() && listView()->columnStrategy()
+    ? listView()->columnStrategy()->toolTip( key(), col )
+    : QString::null ;
+}
+
+int Kleo::KeyListViewItem::compare( QListViewItem * item, int col, bool ascending ) const {
+  if ( !item || item->rtti() != RTTI || !listView() || !listView()->columnStrategy() )
+    return QListViewItem::compare( item, col, ascending );
+  KeyListViewItem * that = static_cast<KeyListViewItem*>( item );
+  return listView()->columnStrategy()->compare( this->key(), that->key(), col );
+}
+
+void Kleo::KeyListViewItem::paintCell( QPainter * p, const QColorGroup & cg, int column, int width, int alignment ) {
+  const KeyListView::DisplayStrategy * ds = listView() ? listView()->displayStrategy() : 0 ;
+  if ( !ds ) {
+    QListViewItem::paintCell( p, cg, column, width, alignment );
+    return;
+  }
+  const QColor fg = ds->keyForeground( key(), cg.text() );
+  const QColor bg = ds->keyBackground( key(), cg.base() );
+  const QFont f = ds->keyFont( key(), p->font() );
+
+  QColorGroup _cg = cg;
+  p->setFont( f );
+  _cg.setColor( QColorGroup::Text, fg );
+  _cg.setColor( QColorGroup::Base, bg );
+
+  QListViewItem::paintCell( p, _cg, column, width, alignment );
+}
+
+void Kleo::KeyListViewItem::insertItem( QListViewItem * qlvi ) {
+  //kdDebug() << "Kleo::KeyListViewItem::insertItem( " << qlvi << " )" << endl;
+  QListViewItem::insertItem( qlvi );
+  if ( KeyListViewItem * item = lvi_cast<KeyListViewItem>( qlvi ) )
+    listView()->registerItem( item );
+}
+
+void Kleo::KeyListViewItem::takeItem( QListViewItem * qlvi ) {
+  //kdDebug() << "Kleo::KeyListViewItem::takeItem( " << qlvi << " )" << endl;
+  if ( KeyListViewItem * item = lvi_cast<KeyListViewItem>( qlvi ) )
+    listView()->deregisterItem( item );
+  QListViewItem::takeItem( qlvi );
+}
+
+
+//
+//
+// SubkeyKeyListViewItem
+//
+//
+
+Kleo::SubkeyKeyListViewItem::SubkeyKeyListViewItem( KeyListView * parent, const GpgME::Subkey & subkey )
+  : KeyListViewItem( parent, subkey.parent() ), mSubkey( subkey )
+{
+
+}
+
+Kleo::SubkeyKeyListViewItem::SubkeyKeyListViewItem( KeyListView * parent, KeyListViewItem * after, const GpgME::Subkey & subkey )
+  : KeyListViewItem( parent, after, subkey.parent() ), mSubkey( subkey )
+{
+
+}
+
+Kleo::SubkeyKeyListViewItem::SubkeyKeyListViewItem( KeyListViewItem * parent, const GpgME::Subkey & subkey )
+  : KeyListViewItem( parent, subkey.parent() ), mSubkey( subkey )
+{
+
+}
+
+Kleo::SubkeyKeyListViewItem::SubkeyKeyListViewItem( KeyListViewItem * parent, KeyListViewItem * after, const GpgME::Subkey & subkey )
+  : KeyListViewItem( parent, after, subkey.parent() ), mSubkey( subkey )
+{
+
+}
+
+void Kleo::SubkeyKeyListViewItem::setSubkey( const GpgME::Subkey & subkey ) {
+  mSubkey = subkey;
+  setKey( subkey.parent() );
+}
+
+QString Kleo::SubkeyKeyListViewItem::text( int col ) const {
+  return listView() && listView()->columnStrategy()
+    ? listView()->columnStrategy()->subkeyText( subkey(), col )
+    : QString::null ;
+}
+
+QString Kleo::SubkeyKeyListViewItem::toolTip( int col ) const {
+  return listView() && listView()->columnStrategy()
+    ? listView()->columnStrategy()->subkeyToolTip( subkey(), col )
+    : QString::null ;
+}
+
+const QPixmap * Kleo::SubkeyKeyListViewItem::pixmap( int col ) const {
+  return listView() && listView()->columnStrategy()
+    ? listView()->columnStrategy()->subkeyPixmap( subkey(), col ) : 0 ;
+}
+
+int Kleo::SubkeyKeyListViewItem::compare( QListViewItem * item, int col, bool ascending ) const {
+  if ( !item || item->rtti() != RTTI || !listView() || !listView()->columnStrategy() )
+    return KeyListViewItem::compare( item, col, ascending );
+  SubkeyKeyListViewItem * that = static_cast<SubkeyKeyListViewItem*>( item );
+  return listView()->columnStrategy()->subkeyCompare( this->subkey(), that->subkey(), col );
+}
+
+void Kleo::SubkeyKeyListViewItem::paintCell( QPainter * p, const QColorGroup & cg, int column, int width, int alignment ) {
+  const KeyListView::DisplayStrategy * ds = listView() ? listView()->displayStrategy() : 0 ;
+  if ( !ds ) {
+    QListViewItem::paintCell( p, cg, column, width, alignment );
+    return;
+  }
+  const QColor fg = ds->subkeyForeground( subkey(), cg.text() );
+  const QColor bg = ds->subkeyBackground( subkey(), cg.base() );
+  const QFont f = ds->subkeyFont( subkey(), p->font() );
+
+  QColorGroup _cg = cg;
+  p->setFont( f );
+  _cg.setColor( QColorGroup::Text, fg );
+  _cg.setColor( QColorGroup::Base, bg );
+
+  QListViewItem::paintCell( p, _cg, column, width, alignment );
+}
+
+
+//
+//
+// UserIDKeyListViewItem
+//
+//
+
+Kleo::UserIDKeyListViewItem::UserIDKeyListViewItem( KeyListView * parent, const GpgME::UserID & userID )
+  : KeyListViewItem( parent, userID.parent() ), mUserID( userID )
+{
+
+}
+
+Kleo::UserIDKeyListViewItem::UserIDKeyListViewItem( KeyListView * parent, KeyListViewItem * after, const GpgME::UserID & userID )
+  : KeyListViewItem( parent, after, userID.parent() ), mUserID( userID )
+{
+
+}
+
+Kleo::UserIDKeyListViewItem::UserIDKeyListViewItem( KeyListViewItem * parent, const GpgME::UserID & userID )
+  : KeyListViewItem( parent, userID.parent() ), mUserID( userID )
+{
+
+}
+
+Kleo::UserIDKeyListViewItem::UserIDKeyListViewItem( KeyListViewItem * parent, KeyListViewItem * after, const GpgME::UserID & userID )
+  : KeyListViewItem( parent, after, userID.parent() ), mUserID( userID )
+{
+
+}
+
+void Kleo::UserIDKeyListViewItem::setUserID( const GpgME::UserID & userID ) {
+  mUserID = userID;
+  setKey( userID.parent() );
+}
+
+QString Kleo::UserIDKeyListViewItem::text( int col ) const {
+  return listView() && listView()->columnStrategy()
+    ? listView()->columnStrategy()->userIDText( userID(), col )
+    : QString::null ;
+}
+
+QString Kleo::UserIDKeyListViewItem::toolTip( int col ) const {
+  return listView() && listView()->columnStrategy()
+    ? listView()->columnStrategy()->userIDToolTip( userID(), col )
+    : QString::null ;
+}
+
+const QPixmap * Kleo::UserIDKeyListViewItem::pixmap( int col ) const {
+  return listView() && listView()->columnStrategy()
+    ? listView()->columnStrategy()->userIDPixmap( userID(), col ) : 0 ;
+}
+
+int Kleo::UserIDKeyListViewItem::compare( QListViewItem * item, int col, bool ascending ) const {
+  if ( !item || item->rtti() != RTTI || !listView() || !listView()->columnStrategy() )
+    return KeyListViewItem::compare( item, col, ascending );
+  UserIDKeyListViewItem * that = static_cast<UserIDKeyListViewItem*>( item );
+  return listView()->columnStrategy()->userIDCompare( this->userID(), that->userID(), col );
+}
+
+
+void Kleo::UserIDKeyListViewItem::paintCell( QPainter * p, const QColorGroup & cg, int column, int width, int alignment ) {
+  const KeyListView::DisplayStrategy * ds = listView() ? listView()->displayStrategy() : 0 ;
+  if ( !ds ) {
+    QListViewItem::paintCell( p, cg, column, width, alignment );
+    return;
+  }
+  const QColor fg = ds->useridForeground( userID(), cg.text() );
+  const QColor bg = ds->useridBackground( userID(), cg.base() );
+  const QFont f = ds->useridFont( userID(), p->font() );
+
+  QColorGroup _cg = cg;
+  p->setFont( f );
+  _cg.setColor( QColorGroup::Text, fg );
+  _cg.setColor( QColorGroup::Base, bg );
+
+  QListViewItem::paintCell( p, _cg, column, width, alignment );
+}
+
+
+//
+//
+// SignatureKeyListViewItem
+//
+//
+
+Kleo::SignatureKeyListViewItem::SignatureKeyListViewItem( KeyListView * parent, const GpgME::UserID::Signature & signature )
+  : KeyListViewItem( parent, signature.parent().parent() ), mSignature( signature )
+{
+
+}
+
+Kleo::SignatureKeyListViewItem::SignatureKeyListViewItem( KeyListView * parent, KeyListViewItem * after, const GpgME::UserID::Signature & signature )
+  : KeyListViewItem( parent, after, signature.parent().parent() ), mSignature( signature )
+{
+
+}
+
+Kleo::SignatureKeyListViewItem::SignatureKeyListViewItem( KeyListViewItem * parent, const GpgME::UserID::Signature & signature )
+  : KeyListViewItem( parent, signature.parent().parent() ), mSignature( signature )
+{
+
+}
+
+Kleo::SignatureKeyListViewItem::SignatureKeyListViewItem( KeyListViewItem * parent, KeyListViewItem * after, const GpgME::UserID::Signature & signature )
+  : KeyListViewItem( parent, after, signature.parent().parent() ), mSignature( signature )
+{
+
+}
+
+void Kleo::SignatureKeyListViewItem::setSignature( const GpgME::UserID::Signature & signature ) {
+  mSignature = signature;
+  setKey( signature.parent().parent() );
+}
+
+QString Kleo::SignatureKeyListViewItem::text( int col ) const {
+  return listView() && listView()->columnStrategy()
+    ? listView()->columnStrategy()->signatureText( signature(), col )
+    : QString::null ;
+}
+
+QString Kleo::SignatureKeyListViewItem::toolTip( int col ) const {
+  return listView() && listView()->columnStrategy()
+    ? listView()->columnStrategy()->signatureToolTip( signature(), col )
+    : QString::null ;
+}
+
+const QPixmap * Kleo::SignatureKeyListViewItem::pixmap( int col ) const {
+  return listView() && listView()->columnStrategy()
+    ? listView()->columnStrategy()->signaturePixmap( signature(), col ) : 0 ;
+}
+
+int Kleo::SignatureKeyListViewItem::compare( QListViewItem * item, int col, bool ascending ) const {
+  if ( !item || item->rtti() != RTTI || !listView() || !listView()->columnStrategy() )
+    return KeyListViewItem::compare( item, col, ascending );
+  SignatureKeyListViewItem * that = static_cast<SignatureKeyListViewItem*>( item );
+  return listView()->columnStrategy()->signatureCompare( this->signature(), that->signature(), col );
+}
+
+void Kleo::SignatureKeyListViewItem::paintCell( QPainter * p, const QColorGroup & cg, int column, int width, int alignment ) {
+  const KeyListView::DisplayStrategy * ds = listView() ? listView()->displayStrategy() : 0 ;
+  if ( !ds ) {
+    QListViewItem::paintCell( p, cg, column, width, alignment );
+    return;
+  }
+  const QColor fg = ds->signatureForeground( signature(), cg.text() );
+  const QColor bg = ds->signatureBackground( signature(), cg.base() );
+  const QFont f = ds->signatureFont( signature(), p->font() );
+
+  QColorGroup _cg = cg;
+  p->setFont( f );
+  _cg.setColor( QColorGroup::Text, fg );
+  _cg.setColor( QColorGroup::Base, bg );
+
+  QListViewItem::paintCell( p, _cg, column, width, alignment );
+}
+
+
+//
+//
+// ColumnStrategy
+//
+//
+
+Kleo::KeyListView::ColumnStrategy::~ColumnStrategy() {}
+
+int Kleo::KeyListView::ColumnStrategy::compare( const GpgME::Key & key1, const GpgME::Key & key2, int col ) const {
+  return QString::localeAwareCompare( text( key1, col ), text( key2, col ) );
+}
+
+int Kleo::KeyListView::ColumnStrategy::width( int col, const QFontMetrics & fm ) const {
+  return fm.width( title( col ) ) * 2;
+}
+
+int Kleo::KeyListView::ColumnStrategy::subkeyCompare( const GpgME::Subkey & sub1, const GpgME::Subkey & sub2, int col ) const {
+  return QString::localeAwareCompare( subkeyText( sub1, col ), subkeyText( sub2, col ) );
+}
+
+int Kleo::KeyListView::ColumnStrategy::userIDCompare( const GpgME::UserID & uid1, const GpgME::UserID & uid2, int col ) const {
+  return QString::localeAwareCompare( userIDText( uid1, col ), userIDText( uid2, col ) );
+}
+
+int Kleo::KeyListView::ColumnStrategy::signatureCompare( const GpgME::UserID::Signature & sig1, const GpgME::UserID::Signature & sig2, int col ) const {
+  return QString::localeAwareCompare( signatureText( sig1, col ), signatureText( sig2, col ) );
+}
+
+QString Kleo::KeyListView::ColumnStrategy::toolTip( const GpgME::Key & key, int col ) const {
+  return text( key, col );
+}
+
+QString Kleo::KeyListView::ColumnStrategy::subkeyToolTip( const GpgME::Subkey & sub, int col ) const {
+  return subkeyText( sub, col );
+}
+
+QString Kleo::KeyListView::ColumnStrategy::userIDToolTip( const GpgME::UserID & uid, int col ) const {
+  return userIDText( uid, col );
+}
+
+QString Kleo::KeyListView::ColumnStrategy::signatureToolTip( const GpgME::UserID::Signature & sig, int col ) const {
+  return signatureText( sig, col );
+}
+
+//
+//
+// DisplayStrategy
+//
+//
+
+Kleo::KeyListView::DisplayStrategy::~DisplayStrategy() {}
+
+
+//font
+QFont Kleo::KeyListView::DisplayStrategy::keyFont( const GpgME::Key &, const QFont & font ) const {
+  return font;
+}
+
+QFont Kleo::KeyListView::DisplayStrategy::subkeyFont( const GpgME::Subkey &, const QFont & font ) const {
+  return font;
+}
+
+QFont Kleo::KeyListView::DisplayStrategy::useridFont( const GpgME::UserID &, const QFont & font ) const {
+  return font;
+}
+
+QFont Kleo::KeyListView::DisplayStrategy::signatureFont( const GpgME::UserID::Signature &, const QFont & font ) const {
+  return font;
+}
+
+//foreground
+QColor Kleo::KeyListView::DisplayStrategy::keyForeground( const GpgME::Key &, const QColor & fg )const {
+  return fg;
+}
+
+QColor Kleo::KeyListView::DisplayStrategy::subkeyForeground( const GpgME::Subkey &, const QColor & fg ) const {
+  return fg;
+}
+
+QColor Kleo::KeyListView::DisplayStrategy::useridForeground( const GpgME::UserID &, const QColor & fg ) const {
+  return fg;
+}
+
+QColor Kleo::KeyListView::DisplayStrategy::signatureForeground( const GpgME::UserID::Signature &, const QColor & fg ) const {
+  return fg;
+}
+
+//background
+QColor Kleo::KeyListView::DisplayStrategy::keyBackground( const GpgME::Key &, const QColor & bg )const {
+  return bg;
+}
+
+QColor Kleo::KeyListView::DisplayStrategy::subkeyBackground( const GpgME::Subkey &, const QColor & bg ) const {
+  return bg;
+}
+
+QColor Kleo::KeyListView::DisplayStrategy::useridBackground( const GpgME::UserID &, const QColor & bg ) const {
+  return bg;
+}
+
+QColor Kleo::KeyListView::DisplayStrategy::signatureBackground( const GpgME::UserID::Signature &, const QColor & bg ) const {
+  return bg;
+}
+
+
+//
+//
+// Collection of covariant return reimplementations of QListView(Item)
+// members:
+//
+//
+
+Kleo::KeyListView * Kleo::KeyListViewItem::listView() const {
+  return static_cast<Kleo::KeyListView*>( QListViewItem::listView() );
+}
+
+Kleo::KeyListViewItem * Kleo::KeyListViewItem::nextSibling() const {
+  return static_cast<Kleo::KeyListViewItem*>( QListViewItem::nextSibling() );
+}
+
+Kleo::KeyListViewItem * Kleo::KeyListView::firstChild() const {
+  return static_cast<Kleo::KeyListViewItem*>( KListView::firstChild() );
+}
+
+Kleo::KeyListViewItem * Kleo::KeyListView::selectedItem() const {
+  return static_cast<Kleo::KeyListViewItem*>( KListView::selectedItem() );
+}
+
+static void selectedItems( QPtrList<Kleo::KeyListViewItem> & result, QListViewItem * start ) {
+  for ( QListViewItem * item = start ; item ; item = item->nextSibling() ) {
+    if ( item->isSelected() )
+      if ( Kleo::KeyListViewItem * i = Kleo::lvi_cast<Kleo::KeyListViewItem>( item ) )
+	result.append( i );
+    selectedItems( result, item->firstChild() );
+  }
+}
+
+QPtrList<Kleo::KeyListViewItem> Kleo::KeyListView::selectedItems() const {
+  QPtrList<KeyListViewItem> result;
+  ::selectedItems( result, firstChild() );
+  return result;
+}
+
+static bool hasSelection( QListViewItem * start ) {
+  for ( QListViewItem * item = start ; item ; item = item->nextSibling() )
+    if ( item->isSelected() || hasSelection( item->firstChild() ) )
+      return true;
+  return false;
+}
+
+bool Kleo::KeyListView::hasSelection() const {
+  return ::hasSelection( firstChild() );
+}
+
+#include "keylistview.moc"