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+/* This file is part of the KDE libraries
+ Copyright (c) 2010 Timothy Pearson <kb9vqf@pearsoncomputing.net>
+ Copyright (c) 2004 Gustavo Sverzut Barbieri <gsbarbieri@users.sourceforge.net>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License version 2 as published by the Free Software Foundation.
+
+ This library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+*/
+
+/**
+ * \todo
+ * Maybe we should have a common interface for SearchLines, this file
+ * is so close (it's actually based on) klistviewsearchline! Only few methods
+ * would be reimplemented.
+ */
+
+#include "kiconviewsearchline.h"
+
+#include <tqiconview.h>
+#include <klocale.h>
+#include <tqtimer.h>
+#include <kdebug.h>
+
+#define DEFAULT_CASESENSITIVE false
+
+typedef TQValueList <TQIconViewItem *> QIconViewItemList;
+
+class KIconViewSearchLine::KIconViewSearchLinePrivate
+{
+public:
+ KIconViewSearchLinePrivate() :
+ iconView( 0 ),
+ caseSensitive( DEFAULT_CASESENSITIVE ),
+ activeSearch( false ),
+ hiddenListChanged( 0 ),
+ queuedSearches( 0 ) {}
+
+ TQIconView *iconView;
+ bool caseSensitive;
+ bool activeSearch;
+ TQString search;
+ int queuedSearches;
+ int hiddenListChanged;
+ QIconViewItemList hiddenItems;
+};
+
+/******************************************************************************
+ * Public Methods *
+ *****************************************************************************/
+KIconViewSearchLine::KIconViewSearchLine( TQWidget *parent,
+ TQIconView *iconView,
+ const char *name ) :
+ KLineEdit( parent, name )
+{
+ d = NULL;
+ init( iconView );
+}
+
+KIconViewSearchLine::KIconViewSearchLine( TQWidget *parent, const char *name ) :
+ KLineEdit( parent, name )
+{
+ d = NULL;
+ init( NULL );
+}
+
+KIconViewSearchLine::~KIconViewSearchLine()
+{
+ clear(); // empty hiddenItems, returning items back to iconView
+ delete d;
+}
+
+bool KIconViewSearchLine::caseSensitive() const
+{
+ return d->caseSensitive;
+}
+
+TQIconView *KIconViewSearchLine::iconView() const
+{
+ return d->iconView;
+}
+
+/******************************************************************************
+ * Public Slots *
+ *****************************************************************************/
+void KIconViewSearchLine::updateSearch( const TQString &s )
+{
+ long original_count;
+ int original_hiddenListChanged;
+
+ if( ! d->iconView )
+ return; // disabled
+
+ TQString search = d->search = s.isNull() ? text() : s;
+ TQIconViewItem *currentItem = d->iconView->currentItem();
+
+ TQIconViewItem *item = NULL;
+
+ // Remove Non-Matching items, add them them to hidden list
+ TQIconViewItem *i = d->iconView->firstItem();
+ while ( i != NULL ) {
+ item = i;
+ i = i->nextItem(); // Point to next, otherwise will loose it.
+ if ( ! itemMatches( item, search ) ) {
+ hideItem( item );
+
+ if ( item == currentItem )
+ currentItem = NULL; // It's not in iconView anymore.
+ }
+ }
+
+ // Add Matching items, remove from hidden list
+ original_count = d->hiddenItems.count();
+ original_hiddenListChanged = d->hiddenListChanged;
+ for (QIconViewItemList::iterator it=d->hiddenItems.begin();it!=d->hiddenItems.end();++it) {
+ item = *it;
+ if ((original_count != d->hiddenItems.count()) || (original_hiddenListChanged != d->hiddenListChanged)) {
+ // The list has changed; pointers are now most likely invalid
+ // ABORT, but restart the search at the beginning
+ original_count = d->hiddenItems.count();
+ original_hiddenListChanged = d->hiddenListChanged;
+ it=d->hiddenItems.begin();
+ }
+ else {
+ if ( itemMatches( item, search ) )
+ showItem( item );
+ }
+ }
+ d->iconView->sort();
+
+ if ( currentItem != NULL )
+ d->iconView->ensureItemVisible( currentItem );
+}
+
+void KIconViewSearchLine::clear()
+{
+ // Clear hidden list, give items back to TQIconView, if it still exists
+ TQIconViewItem *item = NULL;
+ QIconViewItemList::iterator it = d->hiddenItems.begin();
+ while ( it != d->hiddenItems.end() )
+ {
+ item = *it;
+ ++it;
+ if ( item != NULL )
+ {
+ if ( d->iconView != NULL )
+ showItem( item );
+ else
+ delete item;
+ }
+ }
+ if ( ! d->hiddenItems.isEmpty() )
+ kdDebug() << __FILE__ << ":" << __LINE__ <<
+ "hiddenItems is not empty as it should be. " <<
+ d->hiddenItems.count() << " items are still there.\n" << endl;
+
+ d->search = "";
+ d->queuedSearches = 0;
+ KLineEdit::clear();
+}
+
+void KIconViewSearchLine::iconDeleted(const TQString &filename) {
+ // Clear hidden list, give items back to TQIconView, if it still exists
+ TQIconViewItem *item = NULL;
+ QIconViewItemList::iterator it = d->hiddenItems.begin();
+ while ( it != d->hiddenItems.end() )
+ {
+ item = *it;
+ ++it;
+ if ( item != NULL )
+ {
+ if (item->text() == filename) {
+ if (d->iconView != NULL)
+ showItem( item );
+ else
+ delete item;
+ }
+ }
+ }
+}
+
+void KIconViewSearchLine::setCaseSensitive( bool cs )
+{
+ d->caseSensitive = cs;
+}
+
+void KIconViewSearchLine::setIconView( TQIconView *iv )
+{
+ if ( d->iconView != NULL )
+ disconnect( d->iconView, TQT_SIGNAL( destroyed() ),
+ this, TQT_SLOT( iconViewDeleted() ) );
+
+ d->iconView = iv;
+
+ if ( iv != NULL )
+ {
+ connect( d->iconView, TQT_SIGNAL( destroyed() ),
+ this, TQT_SLOT( iconViewDeleted() ) );
+ setEnabled( true );
+ }
+ else
+ setEnabled( false );
+}
+
+/******************************************************************************
+ * Protected Methods *
+ *****************************************************************************/
+bool KIconViewSearchLine::itemMatches( const TQIconViewItem *item,
+ const TQString &s ) const
+{
+ if ( s.isEmpty() )
+ return true;
+
+ if ( item == NULL )
+ return false;
+
+ TQString itemtext = item->text();
+ return ( itemtext.find( s, 0, caseSensitive() ) >= 0 );
+}
+
+void KIconViewSearchLine::init( TQIconView *iconView )
+{
+ delete d;
+ d = new KIconViewSearchLinePrivate;
+
+ d->iconView = iconView;
+
+ connect( this, TQT_SIGNAL( textChanged( const TQString & ) ),
+ this, TQT_SLOT( queueSearch( const TQString & ) ) );
+
+ if ( iconView != NULL )
+ {
+ connect( iconView, TQT_SIGNAL( destroyed() ),
+ this, TQT_SLOT( iconViewDeleted() ) );
+ setEnabled( true );
+ }
+ else
+ setEnabled( false );
+}
+
+void KIconViewSearchLine::hideItem( TQIconViewItem *item )
+{
+ if ( ( item == NULL ) || ( d->iconView == NULL ) )
+ return;
+
+ d->hiddenListChanged++;
+ d->hiddenItems.append( item );
+ d->iconView->takeItem( item );
+}
+
+void KIconViewSearchLine::showItem( TQIconViewItem *item )
+{
+ if ( d->iconView == NULL )
+ {
+ kdDebug() << __FILE__ << ":" << __LINE__ <<
+ "showItem() could not be called while there's no iconView set." <<
+ endl;
+ return;
+ }
+ d->hiddenListChanged++;
+ d->iconView->insertItem( item );
+ d->hiddenItems.remove( item );
+ item->setText(item->text());
+}
+
+/******************************************************************************
+ * Protected Slots *
+ *****************************************************************************/
+void KIconViewSearchLine::queueSearch( const TQString &s )
+{
+ d->queuedSearches++;
+ d->search = s;
+ TQTimer::singleShot( 200, this, TQT_SLOT( activateSearch() ) );
+}
+
+void KIconViewSearchLine::activateSearch()
+{
+ d->queuedSearches--;
+
+ if ( d->queuedSearches <= 0 )
+ {
+ updateSearch( d->search );
+ d->queuedSearches = 0;
+ }
+ else {
+ TQTimer::singleShot( 200, this, TQT_SLOT( activateSearch() ) );
+ }
+}
+
+/******************************************************************************
+ * Private Slots *
+ *****************************************************************************/
+void KIconViewSearchLine::iconViewDeleted()
+{
+ d->iconView = NULL;
+ setEnabled( false );
+}
+
+#include "kiconviewsearchline.moc"
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