/* channellist.cpp - IRC Channel Search Widget Copyright (c) 2004 by Jason Keirstead Kopete (c) 2002-2004 by the Kopete developers ************************************************************************* * * * 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. * * * ************************************************************************* */ #include "channellist.h" #include "kircengine.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include class ChannelListItem : public KListViewItem { public: ChannelListItem( KListView *parent, QString arg1, QString arg2, QString arg3 ); virtual int compare( QListViewItem *i, int col, bool ascending ) const; virtual void paintCell( QPainter *p, const QColorGroup &cg, int column, int width, int align ); private: KListView *parentList; }; ChannelListItem::ChannelListItem( KListView *parent, QString arg1, QString arg2, QString arg3 ) : KListViewItem( parent, parent->lastItem() ), parentList( parent ) { setText(0, arg1); setText(1, arg2); setText(2, arg3); } int ChannelListItem::compare( QListViewItem *i, int col, bool ascending ) const { if( col == 1 ) { if( text(1).toUInt() < i->text(1).toUInt() ) return -1; else if ( text(1).toUInt() == i->text(1).toUInt() ) return 0; else return 1; } else return QListViewItem::compare( i, col, ascending ); } void ChannelListItem::paintCell( QPainter *p, const QColorGroup &cg, int column, int width, int align ) { QPixmap back( width, height() ); QPainter paint( &back ); //KListViewItem::paintCell( &paint, cg, column, width, align ); // PASTED FROM KLISTVIEWITEM: // set the alternate cell background colour if necessary QColorGroup _cg = cg; if (isAlternate()) if (listView()->viewport()->backgroundMode()==Qt::FixedColor) _cg.setColor(QColorGroup::Background, static_cast< KListView* >(listView())->alternateBackground()); else _cg.setColor(QColorGroup::Base, static_cast< KListView* >(listView())->alternateBackground()); // PASTED FROM QLISTVIEWITEM { QPainter *p = &paint; QListView *lv = listView(); if ( !lv ) return; QFontMetrics fm( p->fontMetrics() ); // any text we render is done by the Components, not by this class, so make sure we've nothing to write QString t; // removed text truncating code from Qt - we do that differently, further on int marg = lv->itemMargin(); int r = marg; // const QPixmap * icon = pixmap( column ); const BackgroundMode bgmode = lv->viewport()->backgroundMode(); const QColorGroup::ColorRole crole = QPalette::backgroundRoleFromMode( bgmode ); if ( _cg.brush( crole ) != lv->colorGroup().brush( crole ) ) p->fillRect( 0, 0, width, height(), _cg.brush( crole ) ); else { // all copied from QListView::paintEmptyArea //lv->paintEmptyArea( p, QRect( 0, 0, width, height() ) ); QStyleOption opt( lv->sortColumn(), 0 ); // ### hack; in 3.1, add a property in QListView and QHeader QStyle::SFlags how = QStyle::Style_Default; if ( lv->isEnabled() ) how |= QStyle::Style_Enabled; lv->style().drawComplexControl( QStyle::CC_ListView, p, lv, QRect( 0, 0, width, height() ), lv->colorGroup(), how, QStyle::SC_ListView, QStyle::SC_None, opt ); } if ( isSelected() && (column == 0 || lv->allColumnsShowFocus()) ) { p->fillRect( r - marg, 0, width - r + marg, height(), _cg.brush( QColorGroup::Highlight ) ); // removed text pen setting code from Qt } // removed icon drawing code from Qt // draw the tree gubbins if ( multiLinesEnabled() && column == 0 && isOpen() && childCount() ) { int textheight = fm.size( align, t ).height() + 2 * lv->itemMargin(); textheight = QMAX( textheight, QApplication::globalStrut().height() ); if ( textheight % 2 > 0 ) textheight++; if ( textheight < height() ) { int w = lv->treeStepSize() / 2; lv->style().drawComplexControl( QStyle::CC_ListView, p, lv, QRect( 0, textheight, w + 1, height() - textheight + 1 ), _cg, lv->isEnabled() ? QStyle::Style_Enabled : QStyle::Style_Default, QStyle::SC_ListViewExpand, (uint)QStyle::SC_All, QStyleOption( this ) ); } } } // END OF PASTE //do you see a better way to tell the TextComponent we are selected ? - Olivier 2004-09-02 if ( isSelected() ) _cg.setColor(QColorGroup::Text , _cg.highlightedText() ); QSimpleRichText myrichtext( text(column), paint.font() ); myrichtext.draw( &paint, 0, 0, paint.window(), _cg ); paint.end(); p->drawPixmap( 0, 0, back ); } ChannelList::ChannelList( QWidget* parent, KIRC::Engine *engine ) : QWidget( parent ), m_engine( engine ) { ChannelListLayout = new QVBoxLayout( this, 11, 6, "ChannelListLayout"); layout72_2 = new QHBoxLayout( 0, 0, 6, "layout72_2"); textLabel1_2 = new QLabel( this, "textLabel1_2" ); layout72_2->addWidget( textLabel1_2 ); channelSearch = new QLineEdit( this, "channelSearch" ); layout72_2->addWidget( channelSearch ); numUsers = new QSpinBox( 0, 32767, 1, this, "num_users" ); numUsers->setSuffix( i18n(" members") ); layout72_2->addWidget( numUsers ); mSearchButton = new QPushButton( this, "mSearchButton" ); layout72_2->addWidget( mSearchButton ); ChannelListLayout->addLayout( layout72_2 ); mChannelList = new KListView( this, "mChannelList" ); mChannelList->addColumn( i18n( "Channel" ) ); mChannelList->addColumn( i18n( "Users" ) ); mChannelList->header()->setResizeEnabled( FALSE, mChannelList->header()->count() - 1 ); mChannelList->addColumn( i18n( "Topic" ) ); mChannelList->setAllColumnsShowFocus( TRUE ); mChannelList->setShowSortIndicator( TRUE ); ChannelListLayout->addWidget( mChannelList ); clearWState( WState_Polished ); textLabel1_2->setText( i18n( "Search for:" ) ); QToolTip::add( textLabel1_2, i18n( "You may search for channels on the IRC server for a text string entered here." ) ); QToolTip::add( numUsers, i18n( "Channels returned must have at least this many members." ) ); QWhatsThis::add( numUsers, i18n( "Channels returned must have at least this many members." ) ); QWhatsThis::add( textLabel1_2, i18n( "You may search for channels on the IRC server for a text string entered here. For instance, you may type 'linux' to find channels that have something to do with linux." ) ); QToolTip::add( channelSearch, i18n( "You may search for channels on the IRC server for a text string entered here." ) ); QWhatsThis::add( channelSearch, i18n( "You may search for channels on the IRC server for a text string entered here. For instance, you may type 'linux' to find channels that have something to do with linux." ) ); mSearchButton->setText( i18n( "S&earch" ) ); QToolTip::add( mSearchButton, i18n( "Perform a channel search." ) ); QWhatsThis::add( mSearchButton, i18n( "Perform a channel search. Please be patient, as this can be slow depending on the number of channels on the server." ) ); QToolTip::add( mChannelList, i18n( "Double click on a channel to select it." ) ); mChannelList->header()->setLabel( 0, i18n( "Channel" ) ); mChannelList->header()->setLabel( 1, i18n( "Users" ) ); mChannelList->header()->setLabel( 2, i18n( "Topic" ) ); // signals and slots connections connect( mChannelList, SIGNAL( doubleClicked(QListViewItem*) ), this, SLOT( slotItemDoubleClicked(QListViewItem*) ) ); connect( mSearchButton, SIGNAL( clicked() ), this, SLOT( search() ) ); connect( mChannelList, SIGNAL( selectionChanged( QListViewItem*) ), this, SLOT( slotItemSelected( QListViewItem *) ) ); connect( m_engine, SIGNAL( incomingListedChan( const QString &, uint, const QString & ) ), this, SLOT( slotChannelListed( const QString &, uint, const QString & ) ) ); connect( m_engine, SIGNAL( incomingEndOfList() ), this, SLOT( slotListEnd() ) ); connect( m_engine, SIGNAL( statusChanged(KIRC::Engine::Status) ), this, SLOT( slotStatusChanged(KIRC::Engine::Status) ) ); show(); } void ChannelList::slotItemDoubleClicked( QListViewItem *i ) { emit channelDoubleClicked( i->text(0) ); } void ChannelList::slotItemSelected( QListViewItem *i ) { emit channelSelected( i->text(0) ); } void ChannelList::slotStatusChanged(KIRC::Engine::Status newStatus) { switch(newStatus) { case KIRC::Engine::Connected: this->reset(); break; case KIRC::Engine::Disconnected: if (mSearching) { KMessageBox::queuedMessageBox( this, KMessageBox::Error, i18n("You have been disconnected from the IRC server."), i18n("Disconnected"), 0 ); } slotListEnd(); break; default: break; } } void ChannelList::reset() { channelCache.clear(); clear(); } void ChannelList::clear() { mChannelList->clear(); channelSearch->clear(); channelSearch->setFocus(); } void ChannelList::search() { if( m_engine->isConnected() || !channelCache.isEmpty() ) { mChannelList->clear(); mChannelList->setSorting( -1 ); mSearchButton->setEnabled(false); mSearch = channelSearch->text(); mSearching = true; mUsers = numUsers->value(); if( channelCache.isEmpty() ) m_engine->list(); else { cacheIterator = channelCache.begin(); slotSearchCache(); } } else { KMessageBox::queuedMessageBox( this, KMessageBox::Error, i18n("You must be connected to the IRC server to perform a channel listing."), i18n("Not Connected"), 0 ); } } void ChannelList::slotChannelListed( const QString &channel, uint users, const QString &topic ) { checkSearchResult( channel, users, topic ); channelCache.insert( channel, QPair< uint, QString >( users, topic ) ); } void ChannelList::checkSearchResult( const QString &channel, uint users, const QString &topic ) { if( ( mUsers == 0 || mUsers <= users ) && ( mSearch.isEmpty() || channel.contains( mSearch, false ) || topic.contains( mSearch, false ) ) ) { new ChannelListItem( mChannelList, channel, QString::number(users), topic ); } } void ChannelList::slotSearchCache() { if( cacheIterator != channelCache.end() ) { checkSearchResult( cacheIterator.key(), cacheIterator.data().first, cacheIterator.data().second ); ++cacheIterator; QTimer::singleShot( 0, this, SLOT( slotSearchCache() ) ); } else { slotListEnd(); } } void ChannelList::slotListEnd() { mChannelList->setSorting(0, true); mSearchButton->setEnabled(true); mSearching = false; } #include "channellist.moc"