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Diffstat (limited to 'kopete/libkopete/ui/kopetelistviewsearchline.cpp')
| -rw-r--r-- | kopete/libkopete/ui/kopetelistviewsearchline.cpp | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/kopete/libkopete/ui/kopetelistviewsearchline.cpp b/kopete/libkopete/ui/kopetelistviewsearchline.cpp new file mode 100644 index 00000000..a71d86c0 --- /dev/null +++ b/kopete/libkopete/ui/kopetelistviewsearchline.cpp @@ -0,0 +1,138 @@ +/* + kopetelistviewsearchline.cpp - a widget for performing quick searches on Kopete::ListViews + Based on code from KMail, copyright (c) 2004 Till Adam <adam@kde.org> + + Copyright (c) 2004 by Richard Smith <kde@metafoo.co.uk> + + Kopete (c) 2004 by the Kopete developers <kopete-devel@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. * + * * + ************************************************************************* +*/ + +#include "kopetelistviewsearchline.h" +#include "kopetelistviewitem.h" +#include "kopetelistview.h" + +namespace Kopete { +namespace UI { +namespace ListView { + +SearchLine::SearchLine( QWidget *parent, ListView *listView, const char *name ) + : KListViewSearchLine( parent, listView, name ) +{ +} + +SearchLine::SearchLine(QWidget *parent, const char *name) + : KListViewSearchLine( parent, 0, name ) +{ +} + +SearchLine::~SearchLine() +{ +} + + +void SearchLine::updateSearch( const QString &s ) +{ + // we copy a huge chunk of code here simply in order to override + // the way items are shown/hidden. KSearchLine rudely + // calls setVisible() on items with no way to customise this behaviour. + + //BEGIN code from KSearchLine::updateSearch + if( !listView() ) + return; + + search = s.isNull() ? text() : s; + + // If there's a selected item that is visible, make sure that it's visible + // when the search changes too (assuming that it still matches). + + QListViewItem *currentItem = 0; + + switch( listView()->selectionMode() ) + { + case KListView::NoSelection: + break; + case KListView::Single: + currentItem = listView()->selectedItem(); + break; + default: + for( QListViewItemIterator it(listView(), QListViewItemIterator::Selected | QListViewItemIterator::Visible); + it.current() && !currentItem; ++it ) + { + if( listView()->itemRect( it.current() ).isValid() ) + currentItem = it.current(); + } + } + + if( keepParentsVisible() ) + checkItemParentsVisible( listView()->firstChild() ); + else + checkItemParentsNotVisible(); + + if( currentItem ) + listView()->ensureItemVisible( currentItem ); + //END code from KSearchLine::updateSearch +} + +void SearchLine::checkItemParentsNotVisible() +{ + //BEGIN code from KSearchLine::checkItemParentsNotVisible + QListViewItemIterator it( listView() ); + for( ; it.current(); ++it ) + { + QListViewItem *item = it.current(); + if( itemMatches( item, search ) ) + setItemVisible( item, true ); + else + setItemVisible( item, false ); + } + //END code from KSearchLine::checkItemParentsNotVisible +} + +bool SearchLine::checkItemParentsVisible( QListViewItem *item ) +{ + //BEGIN code from KSearchLine::checkItemParentsVisible + bool visible = false; + for( ; item; item = item->nextSibling() ) { + if( ( item->firstChild() && checkItemParentsVisible( item->firstChild() ) ) || + itemMatches( item, search ) ) + { + setItemVisible( item, true ); + // OUCH! this operation just became exponential-time. + // however, setting an item visible sets all its descendents + // visible too, which we definitely don't want. + // plus, in Kopete the nesting is never more than 2 deep, + // so this really just doubles the runtime, if that. + // this still can be done in O(n) time by a mark-set process, + // but that's overkill in our case. + checkItemParentsVisible( item->firstChild() ); + visible = true; + } + else + setItemVisible( item, false ); + } + return visible; + //END code from KSearchLine::checkItemParentsVisible +} + +void SearchLine::setItemVisible( QListViewItem *it, bool b ) +{ + if( Item *item = dynamic_cast<Item*>( it ) ) + item->setSearchMatch( b ); + else + it->setVisible( b ); +} + +} // namespace ListView +} // namespace UI +} // namespace Kopete + +#include "kopetelistviewsearchline.moc" |