searchpatternedit.cpp Source File

mailcommon

 /* -*- mode: C++; c-file-style: "gnu" -*-
 
   Author: Marc Mutz <mutz@kde.org>
 
   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.
 */
 
 #include "searchpatternedit.h"
 #include "rulewidgethandlermanager.h"
 using MailCommon::RuleWidgetHandlerManager;
 
 #include <pimcommon/widgets/minimumcombobox.h>
 #include <KComboBox>
 #include <KDebug>
 #include <KDialog>
 #include <KLocale>
 #include <KPushButton>
 #include <KLineEdit>
 
 #include <QButtonGroup>
 #include <QByteArray>
 #include <QHBoxLayout>
 #include <QRadioButton>
 #include <QResizeEvent>
 #include <QStackedWidget>
 
 // Definition of special rule field strings
 // Note: Also see SearchRule::matches() and ruleFieldToEnglish() if
 //       you change the following i18n-ized strings!
 // Note: The index of the values in the following array has to correspond to
 //       the value of the entries in the enum in SearchRuleWidget.
 
 #undef I18N_NOOP
 #define I18N_NOOP(t) 0, t
 #undef I18N_NOOP2
 #define I18N_NOOP2(c,t) c, t
 
 using namespace MailCommon;
 
 static const struct {
   const char *internalName;
   const char *context;
   const char *displayName;
 
   QString getLocalizedDisplayName() const
   {
     return i18nc( context, displayName );
   }
 
 } SpecialRuleFields[] = {
   { "<message>",     I18N_NOOP( "Complete Message" )       },
   { "<body>",        I18N_NOOP( "Body of Message" )          },
   { "<any header>",  I18N_NOOP( "Anywhere in Headers" )    },
   { "<recipients>",  I18N_NOOP( "All Recipients" )    },
   { "<size>",        I18N_NOOP( "Size in Bytes" ) },
   { "<age in days>", I18N_NOOP( "Age in Days" )   },
   { "<status>",      I18N_NOOP( "Message Status" )        },
   { "<tag>",         I18N_NOOP( "Message Tag" ) },
   { "Subject",       I18N_NOOP2( "Subject of an email.", "Subject" )  },
   { "From",          I18N_NOOP( "From" )  },
   { "To",            I18N_NOOP2( "Receiver of an email.", "To" )  },
   { "CC",            I18N_NOOP( "CC" )  },
   { "Reply-To",      I18N_NOOP( "Reply To" )  },
   { "Organization",  I18N_NOOP( "Organization" )  }, 
   { "<date>",  I18N_NOOP( "Date" )  }
 };
 static const int SpecialRuleFieldsCount =
   sizeof( SpecialRuleFields ) / sizeof( *SpecialRuleFields );
 
 //=============================================================================
 //
 // class SearchRuleWidget
 //
 //=============================================================================
 
 SearchRuleWidget::SearchRuleWidget(QWidget *parent, SearchRule::Ptr aRule,
                                    SearchPatternEdit::SearchPatternEditOptions options ,
                                    SearchPatternEdit::SearchModeType modeType)
     : QWidget( parent ),
     mRuleField( 0 ),
     mFunctionStack( 0 ),
     mValueStack( 0 )
 {
   initFieldList( options );
   initWidget( modeType );
 
   if ( aRule ) {
     setRule( aRule );
   } else {
     reset();
   }
 }
 
 void SearchRuleWidget::setPatternEditOptions( SearchPatternEdit::SearchPatternEditOptions options )
 {
   SearchRule::Ptr srule = rule();
   QByteArray currentText = srule->field();
 
   initFieldList( options );
 
   mRuleField->clear();
   mRuleField->addItems( mFilterFieldList );
   KCompletion *comp = mRuleField->completionObject();
   comp->clear();
   comp->insertItems(mFilterFieldList);
   mRuleField->setMaxCount( mRuleField->count() );
   mRuleField->adjustSize();
 
   const bool headersOnly = ( options & MailCommon::SearchPatternEdit::HeadersOnly );
   const bool notShowSize = ( options & MailCommon::SearchPatternEdit::NotShowSize );
   const bool notShowDate = ( options & MailCommon::SearchPatternEdit::NotShowDate );
   const bool absoluteDates = ( options & MailCommon::SearchPatternEdit::AbsoluteDate );
 
   if ( headersOnly && ( currentText != "<message>") && ( currentText != "<body>" ) ) {
     mRuleField->setItemText( 0, QString::fromLatin1( currentText ) );
   } else {
     mRuleField->setItemText( 0, QString() );
   }
 
   if ( notShowSize && ( currentText != "<size>") ) {
     mRuleField->setItemText( 0, QString::fromLatin1( currentText ) );
   } else {
     mRuleField->setItemText( 0, QString() );
   }
 
   if ( notShowDate && ( currentText != "<date>") ) {
     mRuleField->setItemText( 0, QString::fromLatin1( currentText ) );
   } else {
     mRuleField->setItemText( 0, QString() );
   }
 
   if ( !absoluteDates && ( currentText != "<age in days>") ) {
     mRuleField->setItemText( 0, QString::fromLatin1( currentText ) );
   } else {
     mRuleField->setItemText( 0, QString() );
   }
 }
 
 
 
 void SearchRuleWidget::initWidget(SearchPatternEdit::SearchModeType modeType)
 {
   QHBoxLayout *hlay = new QHBoxLayout( this );
   hlay->setSpacing( KDialog::spacingHint() );
   hlay->setMargin( 0 );
 
   // initialize the header field combo box
   mRuleField = new PimCommon::MinimumComboBox( this );
   mRuleField->setObjectName( QLatin1String("mRuleField") );
   mRuleField->setEditable( true );
   KLineEdit *edit = new KLineEdit;
   edit->setClickMessage( i18n("Choose or type your own criteria"));
   mRuleField->setToolTip(i18n("Choose or type your own criteria"));
   edit->setClearButtonShown(true);
   mRuleField->setLineEdit(edit);
   mRuleField->setTrapReturnKey(true);
 
   mRuleField->addItems( mFilterFieldList );
   KCompletion *comp = mRuleField->completionObject();
   comp->setIgnoreCase(true);
   comp->insertItems(mFilterFieldList);
   comp->setCompletionMode(KGlobalSettings::CompletionPopupAuto);
 
   // don't show sliders when popping up this menu
   mRuleField->setMaxCount( mRuleField->count() );
   mRuleField->adjustSize();
   hlay->addWidget( mRuleField );
 
   // initialize the function/value widget stack
   mFunctionStack = new QStackedWidget( this );
   //Don't expand the widget in vertical direction
   mFunctionStack->setSizePolicy( QSizePolicy::Preferred, QSizePolicy::Fixed );
 
   hlay->addWidget( mFunctionStack );
 
   mValueStack = new QStackedWidget( this );
   hlay->addWidget( mValueStack );
   hlay->setStretchFactor( mValueStack, 10 );
 
   mAdd = new KPushButton( this );
   mAdd->setIcon( KIcon( QLatin1String("list-add") ) );
   mAdd->setSizePolicy( QSizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed ) );
   hlay->addWidget( mAdd );
 
   mRemove = new KPushButton( this );
   mRemove->setIcon( KIcon( QLatin1String("list-remove") ) );
   mRemove->setSizePolicy( QSizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed ) );
   hlay->addWidget( mRemove );
 
   RuleWidgetHandlerManager::instance()->setIsNepomukSearch(modeType==SearchPatternEdit::NepomukMode);
 
   RuleWidgetHandlerManager::instance()->createWidgets( mFunctionStack, mValueStack, this );
 
   // redirect focus to the header field combo box
   setFocusProxy( mRuleField );
 
   connect( mRuleField, SIGNAL(activated(QString)),
            this, SLOT(slotRuleFieldChanged(QString)) );
   connect( mRuleField, SIGNAL(editTextChanged(QString)),
            this, SLOT(slotRuleFieldChanged(QString)) );
   connect( mRuleField, SIGNAL(editTextChanged(QString)),
            this, SIGNAL(fieldChanged(QString)) );
 
   connect( mAdd, SIGNAL(clicked()),
            this, SLOT(slotAddWidget()) );
   connect( mRemove, SIGNAL(clicked()),
            this, SLOT(slotRemoveWidget()) );
 }
 
 void SearchRuleWidget::updateAddRemoveButton( bool addButtonEnabled, bool removeButtonEnabled )
 {
   mAdd->setEnabled( addButtonEnabled );
   mRemove->setEnabled( removeButtonEnabled );
 }
 
 void SearchRuleWidget::slotAddWidget()
 {
   emit addWidget( this );
 }
 
 void SearchRuleWidget::slotRemoveWidget()
 {
   emit removeWidget( this );
 }
 
 void SearchRuleWidget::setRule( SearchRule::Ptr aRule )
 {
   Q_ASSERT( aRule );
 
   kDebug() << "(" << aRule->asString() << ")";
 
   //--------------set the field
   int i = indexOfRuleField( aRule->field() );
 
   mRuleField->blockSignals( true );
 
   if ( i < 0 ) { // not found -> user defined field
     mRuleField->setItemText( 0, QString::fromLatin1( aRule->field() ) );
     i = 0;
   } else { // found in the list of predefined fields
     mRuleField->setItemText( 0, QString() );
   }
 
   mRuleField->setCurrentIndex( i );
   mRuleField->blockSignals( false );
 
   RuleWidgetHandlerManager::instance()->setRule( mFunctionStack, mValueStack, aRule );
 }
 
 SearchRule::Ptr SearchRuleWidget::rule() const
 {
   const QByteArray ruleField = ruleFieldToEnglish( mRuleField->currentText() );
 
   const SearchRule::Function function =
     RuleWidgetHandlerManager::instance()->function( ruleField, mFunctionStack );
 
   const QString value =
     RuleWidgetHandlerManager::instance()->value( ruleField, mFunctionStack, mValueStack );
 
   return SearchRule::createInstance( ruleField, function, value );
 }
 
 void SearchRuleWidget::reset()
 {
   mRuleField->blockSignals( true );
   mRuleField->setItemText( 0, QString() );
   mRuleField->setCurrentIndex( 0 );
   mRuleField->blockSignals( false );
 
   RuleWidgetHandlerManager::instance()->reset( mFunctionStack, mValueStack );
 }
 
 void SearchRuleWidget::slotFunctionChanged()
 {
   const QByteArray ruleField = ruleFieldToEnglish( mRuleField->currentText() );
   RuleWidgetHandlerManager::instance()->update( ruleField, mFunctionStack, mValueStack );
   const QString prettyValue =
     RuleWidgetHandlerManager::instance()->prettyValue( ruleField, mFunctionStack, mValueStack );
 
   emit contentsChanged( prettyValue );
 }
 
 void SearchRuleWidget::slotValueChanged()
 {
   const QByteArray ruleField = ruleFieldToEnglish( mRuleField->currentText() );
 
   const QString prettyValue =
     RuleWidgetHandlerManager::instance()->prettyValue( ruleField, mFunctionStack, mValueStack );
 
   emit contentsChanged( prettyValue );
 }
 
 void SearchRuleWidget::slotReturnPressed()
 {
   emit returnPressed();
 }
 
 QByteArray SearchRuleWidget::ruleFieldToEnglish( const QString & i18nVal )
 {
   for ( int i = 0; i < SpecialRuleFieldsCount; ++i ) {
     if ( i18nVal == SpecialRuleFields[i].getLocalizedDisplayName() ) {
       return SpecialRuleFields[i].internalName;
     }
   }
   return i18nVal.toLatin1();
 }
 
 int SearchRuleWidget::ruleFieldToId( const QString & i18nVal )
 {
   for ( int i = 0; i < SpecialRuleFieldsCount; ++i ) {
     if ( i18nVal == SpecialRuleFields[i].getLocalizedDisplayName() ) {
       return i;
     }
   }
   return -1; // no pseudo header
 }
 
 static QString displayNameFromInternalName( const QString & internal )
 {
   for ( int i = 0; i < SpecialRuleFieldsCount; ++i ) {
     if ( internal == QLatin1String(SpecialRuleFields[i].internalName) ) {
       return SpecialRuleFields[i].getLocalizedDisplayName();
     }
   }
   return QLatin1String(internal.toLatin1());
 }
 
 int SearchRuleWidget::indexOfRuleField( const QByteArray &aName ) const
 {
   if ( aName.isEmpty() ) {
     return -1;
   }
 
   const QString i18n_aName = displayNameFromInternalName( QLatin1String(aName) );
   const int nbRuleField = mRuleField->count();
   for ( int i = 1; i < nbRuleField; ++i ) {
     if ( mRuleField->itemText( i ) == i18n_aName ) {
       return i;
     }
   }
 
   return -1;
 }
 
 void SearchRuleWidget::initFieldList( SearchPatternEdit::SearchPatternEditOptions options )
 {
   const bool headersOnly = ( options & MailCommon::SearchPatternEdit::HeadersOnly );
   const bool absoluteDates = ( options & MailCommon::SearchPatternEdit::AbsoluteDate );
   const bool notShowSize = ( options & MailCommon::SearchPatternEdit::NotShowSize );
   const bool notShowDate = ( options & MailCommon::SearchPatternEdit::NotShowDate );
 
   mFilterFieldList.clear();
   mFilterFieldList.append( QString() ); // empty entry for user input
 
   if ( !headersOnly ) {
     mFilterFieldList.append( SpecialRuleFields[Message].getLocalizedDisplayName() );
     mFilterFieldList.append( SpecialRuleFields[Body].getLocalizedDisplayName() );
   }
   mFilterFieldList.append( SpecialRuleFields[AnyHeader].getLocalizedDisplayName() );
   mFilterFieldList.append( SpecialRuleFields[Recipients].getLocalizedDisplayName() );
   if ( !notShowSize )
     mFilterFieldList.append( SpecialRuleFields[Size].getLocalizedDisplayName() );
   if ( !absoluteDates ) {
     mFilterFieldList.append( SpecialRuleFields[AgeInDays].getLocalizedDisplayName() );
   }
 
   mFilterFieldList.append( SpecialRuleFields[Subject].getLocalizedDisplayName() );
   mFilterFieldList.append( SpecialRuleFields[From].getLocalizedDisplayName() );
   mFilterFieldList.append( SpecialRuleFields[To].getLocalizedDisplayName() );
   mFilterFieldList.append( SpecialRuleFields[CC].getLocalizedDisplayName() );
   mFilterFieldList.append( SpecialRuleFields[Status].getLocalizedDisplayName() );
   mFilterFieldList.append( SpecialRuleFields[Tag].getLocalizedDisplayName() );
   mFilterFieldList.append( i18n( SpecialRuleFields[ReplyTo].displayName ) );
   mFilterFieldList.append( i18n( SpecialRuleFields[Organization].displayName ) );
 
   if ( !notShowDate )
       mFilterFieldList.append( i18n( SpecialRuleFields[Date].displayName ) );
 
   // these others only represent message headers and you can add to
   // them as you like
   mFilterFieldList.append( QLatin1String("List-Id") );
   mFilterFieldList.append( QLatin1String("Resent-From") );
   mFilterFieldList.append( QLatin1String("X-Loop") );
   mFilterFieldList.append( QLatin1String("X-Mailing-List") );
   mFilterFieldList.append( QLatin1String("X-Spam-Flag") );
 }
 
 void SearchRuleWidget::slotRuleFieldChanged( const QString &field )
 {
   RuleWidgetHandlerManager::instance()->update(
     ruleFieldToEnglish( field ), mFunctionStack, mValueStack );
 }
 
 //=============================================================================
 //
 // class KMFilterActionWidgetLister (the filter action editor)
 //
 //=============================================================================
 
 SearchRuleWidgetLister::SearchRuleWidgetLister( QWidget *parent, SearchPatternEdit::SearchPatternEditOptions options, SearchPatternEdit::SearchModeType modeType)
   : KWidgetLister( false, 2, FILTER_MAX_RULES, parent )
 {
   mRuleList = 0;
 
   mTypeMode = modeType;
   mOptions = options;
 }
 
 SearchRuleWidgetLister::~SearchRuleWidgetLister()
 {
 }
 
 void SearchRuleWidgetLister::setPatternEditOptions( SearchPatternEdit::SearchPatternEditOptions options )
 {
     mOptions = options;
     foreach ( QWidget *w, widgets() ) {
         qobject_cast<SearchRuleWidget*>( w )->setPatternEditOptions( options );
     }
 }
 
 void SearchRuleWidgetLister::setRuleList( QList<SearchRule::Ptr> *aList )
 {
   Q_ASSERT( aList );
 
   if ( mRuleList && mRuleList != aList ) {
     regenerateRuleListFromWidgets();
   }
 
   mRuleList = aList;
 
   if ( !widgets().isEmpty() ) { // move this below next 'if'?
     widgets().first()->blockSignals( true );
   }
 
   if ( aList->isEmpty() ) {
     slotClear();
     widgets().first()->blockSignals( false );
     return;
   }
 
   int superfluousItems = (int)mRuleList->count() - widgetsMaximum();
   if ( superfluousItems > 0 ) {
     kDebug() << "Clipping rule list to" << widgetsMaximum() << "items!";
 
     for ( ; superfluousItems ; superfluousItems-- ) {
       mRuleList->removeLast();
     }
   }
 
   // set the right number of widgets
   setNumberOfShownWidgetsTo( qMax( (int)mRuleList->count(), widgetsMinimum() ) );
 
   // load the actions into the widgets
   QList<QWidget*> widgetList = widgets();
   QList<SearchRule::Ptr>::const_iterator rIt;
   QList<SearchRule::Ptr>::const_iterator rItEnd( mRuleList->constEnd() );
   QList<QWidget*>::const_iterator wIt = widgetList.constBegin();
   QList<QWidget*>::const_iterator wItEnd = widgetList.constEnd();
   for ( rIt = mRuleList->constBegin();
         rIt != rItEnd && wIt != wItEnd; ++rIt, ++wIt ) {
     qobject_cast<SearchRuleWidget*>( *wIt )->setRule( (*rIt) );
   }
   for ( ; wIt != wItEnd; ++wIt ) {
     qobject_cast<SearchRuleWidget*>( *wIt )->reset();
   }
 
   Q_ASSERT( !widgets().isEmpty() );
   widgets().first()->blockSignals(false);
   updateAddRemoveButton();
 }
 
 void SearchRuleWidgetLister::slotAddWidget( QWidget *w )
 {
   addWidgetAfterThisWidget( w );
   updateAddRemoveButton();
 }
 
 void SearchRuleWidgetLister::slotRemoveWidget( QWidget *w )
 {
   removeWidget( w );
   updateAddRemoveButton();
 }
 
 void SearchRuleWidgetLister::reconnectWidget( SearchRuleWidget *w )
 {
   connect( w, SIGNAL(addWidget(QWidget*)),
            this, SLOT(slotAddWidget(QWidget*)), Qt::UniqueConnection );
   connect( w, SIGNAL(removeWidget(QWidget*)),
            this, SLOT(slotRemoveWidget(QWidget*)), Qt::UniqueConnection );
 }
 
 void SearchRuleWidgetLister::updateAddRemoveButton()
 {
   QList<QWidget*> widgetList = widgets();
   const int numberOfWidget( widgetList.count() );
   bool addButtonEnabled = false;
   bool removeButtonEnabled = false;
   if ( numberOfWidget <= widgetsMinimum() ) {
     addButtonEnabled = true;
     removeButtonEnabled = false;
   } else if ( numberOfWidget >= widgetsMaximum() ) {
     addButtonEnabled = false;
     removeButtonEnabled = true;
   } else {
     addButtonEnabled = true;
     removeButtonEnabled = true;
   }
   QList<QWidget*>::ConstIterator wIt = widgetList.constBegin();
   QList<QWidget*>::ConstIterator wEnd = widgetList.constEnd();
   for ( ; wIt != wEnd ;++wIt ) {
     SearchRuleWidget *w = qobject_cast<SearchRuleWidget*>( *wIt );
     w->updateAddRemoveButton( addButtonEnabled, removeButtonEnabled );
   }
 }
 
 void SearchRuleWidgetLister::reset()
 {
   if ( mRuleList ) {
     regenerateRuleListFromWidgets();
   }
 
   mRuleList = 0;
   slotClear();
   updateAddRemoveButton();
 }
 
 QWidget *SearchRuleWidgetLister::createWidget( QWidget *parent )
 {
   SearchRuleWidget *w =
     new SearchRuleWidget( parent, SearchRule::Ptr(), mOptions, mTypeMode );
   reconnectWidget( w );
   return w;
 }
 
 void SearchRuleWidgetLister::clearWidget( QWidget *aWidget )
 {
   if ( aWidget ) {
     SearchRuleWidget *w = static_cast<SearchRuleWidget*>( aWidget );
     w->reset();
     reconnectWidget( w );
     updateAddRemoveButton();
   }
 }
 
 void SearchRuleWidgetLister::regenerateRuleListFromWidgets()
 {
   if ( !mRuleList ) {
     return;
   }
 
   mRuleList->clear();
 
   foreach ( const QWidget *w, widgets() ) {
     SearchRule::Ptr r = qobject_cast<const SearchRuleWidget*>( w )->rule();
     if ( r && !r->isEmpty() ) {
       mRuleList->append( r );
     }
   }
   updateAddRemoveButton();
 }
 
 //=============================================================================
 //
 // class SearchPatternEdit
 //
 //=============================================================================
 
 SearchPatternEdit::SearchPatternEdit( QWidget *parent, SearchPatternEditOptions options, SearchModeType modeType )
   : QWidget( parent ), mAllMessageRBtn( 0 )
 {
   setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Fixed );
   setObjectName( QLatin1String("SearchPatternEdit") );
   initLayout( options, modeType );
 }
 
 SearchPatternEdit::~SearchPatternEdit()
 {
 }
 
 void SearchPatternEdit::updateSearchPattern()
 {
   mRuleLister->regenerateRuleListFromWidgets();
 }
 
 void SearchPatternEdit::setPatternEditOptions( SearchPatternEdit::SearchPatternEditOptions options )
 {
     mRuleLister->setPatternEditOptions(options);
 }
 
 
 void SearchPatternEdit::initLayout( SearchPatternEditOptions options, SearchModeType modeType )
 {
   QVBoxLayout *layout = new QVBoxLayout( this );
   layout->setMargin( 0 );
 
   const bool matchAllMessages = ( options & MailCommon::SearchPatternEdit::MatchAllMessages );
   //------------the radio buttons
   mAllRBtn = new QRadioButton( i18n( "Match a&ll of the following" ), this );
   mAnyRBtn = new QRadioButton( i18n( "Match an&y of the following" ), this );
   if ( matchAllMessages ) {
     mAllMessageRBtn = new QRadioButton( i18n( "Match all messages" ), this );
   }
 
   mAllRBtn->setObjectName( QLatin1String("mAllRBtn") );
   mAllRBtn->setChecked( true );
   mAnyRBtn->setObjectName( QLatin1String("mAnyRBtn") );
   mAnyRBtn->setChecked( false );
   if ( matchAllMessages ) {
     mAllMessageRBtn->setObjectName( QLatin1String("mAllMessageRBtn") );
     mAllMessageRBtn->setChecked(false);
   }
   layout->addWidget( mAllRBtn );
   layout->addWidget( mAnyRBtn );
   if ( matchAllMessages ) {
     layout->addWidget( mAllMessageRBtn );
   }
 
   QButtonGroup *bg = new QButtonGroup( this );
   bg->addButton( mAllRBtn );
   bg->addButton( mAnyRBtn );
   if ( matchAllMessages ) {
     bg->addButton( mAllMessageRBtn );
   }
 
   //------------connect a few signals
   connect( bg, SIGNAL(buttonClicked(QAbstractButton*)),
            this, SLOT(slotRadioClicked(QAbstractButton*)) );
 
   //------------the list of SearchRuleWidget's
   mRuleLister =
     new SearchRuleWidgetLister(
       this, options, modeType);
 
   mRuleLister->slotClear();
 
   if ( !mRuleLister->widgets().isEmpty() ) {
     const int numberOfWidget( mRuleLister->widgets().count() );
     for ( int i = 0; i < numberOfWidget; ++i ) {
       SearchRuleWidget *srw = static_cast<SearchRuleWidget*>( mRuleLister->widgets().at(i) );
       connect( srw, SIGNAL(fieldChanged(QString)),
                this, SLOT(slotAutoNameHack()) );
       connect( srw, SIGNAL(contentsChanged(QString)),
                this, SLOT(slotAutoNameHack()) );
       connect( srw, SIGNAL(returnPressed()),
                this, SIGNAL(returnPressed()) );
     }
   } else {
     kDebug() << "No first SearchRuleWidget, though slotClear() has been called!";
   }
 
   connect( mRuleLister, SIGNAL(widgetAdded(QWidget*)),
            this, SLOT(slotRuleAdded(QWidget*)) );
   connect( mRuleLister, SIGNAL(widgetRemoved()), this, SIGNAL(patternChanged()) );
   connect( mRuleLister, SIGNAL(clearWidgets()), this, SIGNAL(patternChanged()));
 
   layout->addWidget( mRuleLister );
 }
 
 void SearchPatternEdit::setSearchPattern( SearchPattern *aPattern )
 {
   Q_ASSERT( aPattern );
 
   mRuleLister->setRuleList( aPattern );
 
   mPattern = aPattern;
 
   blockSignals( true );
   if ( mPattern->op() == SearchPattern::OpOr ) {
     mAnyRBtn->setChecked( true );
   } else if ( mPattern->op() == SearchPattern::OpAnd ) {
     mAllRBtn->setChecked( true );
   } else if ( mAllMessageRBtn &&  ( mPattern->op() == SearchPattern::OpAll ) ) {
     mAllMessageRBtn->setChecked( true );
   }
   mRuleLister->setEnabled( mPattern->op() != SearchPattern::OpAll );
   blockSignals( false );
 
   setEnabled( true );
   emit patternChanged();
 }
 
 void SearchPatternEdit::reset()
 {
   mRuleLister->reset();
 
   blockSignals(true);
   mAllRBtn->setChecked( true );
   blockSignals(false);
 
   setEnabled( false );
   emit patternChanged();
 }
 
 void SearchPatternEdit::slotRadioClicked( QAbstractButton *aRBtn )
 {
   if ( mPattern ) {
     if ( aRBtn == mAllRBtn ) {
       mPattern->setOp( SearchPattern::OpAnd );
     } else if ( aRBtn == mAnyRBtn ) {
       mPattern->setOp( SearchPattern::OpOr );
     } else if ( aRBtn == mAllMessageRBtn ) {
       mPattern->setOp( SearchPattern::OpAll );
     }
     mRuleLister->setEnabled( mPattern->op() != SearchPattern::OpAll );
     emit patternChanged();
   }
 }
 
 void SearchPatternEdit::slotAutoNameHack()
 {
   mRuleLister->regenerateRuleListFromWidgets();
   emit maybeNameChanged();
   emit patternChanged();
 }
 
 void SearchPatternEdit::slotRuleAdded( QWidget *newRuleWidget )
 {
   SearchRuleWidget *srw = static_cast<SearchRuleWidget*>( newRuleWidget );
   connect( srw, SIGNAL(fieldChanged(QString)), this, SLOT(slotAutoNameHack()) );
   connect( srw, SIGNAL(contentsChanged(QString)), this, SLOT(slotAutoNameHack()) );
   connect( srw, SIGNAL(returnPressed()), this, SIGNAL(returnPressed()) );
   emit patternChanged();
 }
 #include "searchpatternedit.moc"
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