Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 274 insertions, 0 deletions

diff --git a/kdeui/kiconviewsearchline.cpp b/kdeui/kiconviewsearchline.cpp
new file mode 100644
index 000000000..b0f26c03d
--- /dev/null
+++ b/kdeui/kiconviewsearchline.cpp
@@ -0,0 +1,274 @@
+/* This file is part of the KDE libraries
+   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 <qiconview.h>
+#include <klocale.h>
+#include <qtimer.h>
+#include <kdebug.h>
+
+#define DEFAULT_CASESENSITIVE false
+
+typedef QValueList <QIconViewItem *> QIconViewItemList;
+
+class KIconViewSearchLine::KIconViewSearchLinePrivate
+{
+public:
+  KIconViewSearchLinePrivate() :
+    iconView( 0 ),
+    caseSensitive( DEFAULT_CASESENSITIVE ),
+    activeSearch( false ),
+    queuedSearches( 0 ) {}
+
+  QIconView *iconView;
+  bool caseSensitive;
+  bool activeSearch;
+  QString search;
+  int queuedSearches;
+  QIconViewItemList hiddenItems;
+};
+
+/******************************************************************************
+ * Public Methods                                                             *
+ *****************************************************************************/
+KIconViewSearchLine::KIconViewSearchLine( QWidget *parent,
+					  QIconView *iconView,
+					  const char *name ) :
+  KLineEdit( parent, name )
+{
+  d = NULL;
+  init( iconView );
+}
+
+KIconViewSearchLine::KIconViewSearchLine( QWidget *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;
+}
+
+QIconView *KIconViewSearchLine::iconView() const
+{
+  return d->iconView;
+}
+
+/******************************************************************************
+ * Public Slots                                                               *
+ *****************************************************************************/
+void KIconViewSearchLine::updateSearch( const QString &s )
+{
+  QIconView *iv = d->iconView;
+  if( ! iv )
+    return; // disabled
+
+  QString search = d->search = s.isNull() ? text() : s;
+
+  QIconViewItemList *hi = &(d->hiddenItems);
+
+  QIconViewItem *currentItem = iv->currentItem();
+
+  QIconViewItem *item = NULL;
+
+  // Remove Non-Matching items, add them them to hidden list
+  QIconViewItem *i = iv->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
+    QIconViewItemList::iterator it = hi->begin();
+    while ( it != hi->end() )
+      {
+	item = *it;
+	++it;
+	if ( itemMatches( item, search ) )
+	  showItem( item );
+      }
+
+    iv->sort();
+
+    if ( currentItem != NULL )
+      iv->ensureItemVisible( currentItem );
+}
+
+void KIconViewSearchLine::clear()
+{
+  // Clear hidden list, give items back to QIconView, if it still exists
+  QIconViewItem *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::setCaseSensitive( bool cs )
+{
+  d->caseSensitive = cs;
+}
+
+void KIconViewSearchLine::setIconView( QIconView *iv )
+{
+  if ( d->iconView != NULL )
+    disconnect( d->iconView, SIGNAL( destroyed() ),
+		this,        SLOT(   iconViewDeleted() ) );
+
+  d->iconView = iv;
+
+  if ( iv != NULL )
+    {
+      connect( d->iconView, SIGNAL( destroyed() ),
+	       this,        SLOT(   iconViewDeleted() ) );
+      setEnabled( true );
+    }
+  else
+    setEnabled( false );
+}
+
+/******************************************************************************
+ * Protected Methods                                                          *
+ *****************************************************************************/
+bool KIconViewSearchLine::itemMatches( const QIconViewItem *item,
+				       const QString &s ) const
+{
+  if ( s.isEmpty() )
+    return true;
+
+  if ( item == NULL )
+    return false;
+
+  return ( item->text().find( s, 0, caseSensitive() ) >= 0 );
+}
+
+void KIconViewSearchLine::init( QIconView *iconView )
+{
+  delete d;
+  d = new KIconViewSearchLinePrivate;
+
+  d->iconView = iconView;
+
+  connect( this, SIGNAL( textChanged( const QString & ) ),
+	   this, SLOT(   queueSearch( const QString & ) ) );
+
+  if ( iconView != NULL )
+    {
+      connect( iconView, SIGNAL( destroyed() ),
+	       this,     SLOT(   iconViewDeleted() ) );
+      setEnabled( true );
+    }
+  else
+    setEnabled( false );
+}
+
+void KIconViewSearchLine::hideItem( QIconViewItem *item )
+{
+  if ( ( item == NULL ) || ( d->iconView == NULL ) )
+    return;
+
+  d->hiddenItems.append( item );
+  d->iconView->takeItem( item );
+}
+
+void KIconViewSearchLine::showItem( QIconViewItem *item )
+{
+  if ( d->iconView == NULL )
+    {
+      kdDebug() << __FILE__ << ":" << __LINE__ <<
+	"showItem() could not be called while there's no iconView set." <<
+	endl;
+      return;
+    }
+  d->iconView->insertItem( item );
+  d->hiddenItems.remove( item );
+}
+
+/******************************************************************************
+ * Protected Slots                                                            *
+ *****************************************************************************/
+void KIconViewSearchLine::queueSearch( const QString &s )
+{
+  d->queuedSearches++;
+  d->search = s;
+  QTimer::singleShot( 200, this, SLOT( activateSearch() ) );
+}
+
+void KIconViewSearchLine::activateSearch()
+{
+  d->queuedSearches--;
+
+  if ( d->queuedSearches <= 0 )
+    {
+      updateSearch( d->search );
+      d->queuedSearches = 0;
+    }
+}
+
+/******************************************************************************
+ * Private Slots                                                              *
+ *****************************************************************************/
+void KIconViewSearchLine::iconViewDeleted()
+{
+  d->iconView = NULL;
+  setEnabled( false );
+}
+
+#include "kiconviewsearchline.moc"