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