kalzium/src/searchwidget.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006      by Pino Toscano, toscano.pino@tiscali.it      *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
  18  ***************************************************************************/
  19
  20 #include "searchwidget.h"
  21
  22 #include <QLabel>
  23 #include <QLayout>
  24 #include <KLineEdit>
  25 #include <QTimer>
  26 #include <QToolButton>
  27
  28 #include <KIcon>
  29 #include <KLocale>
  30
  31 #include "kalziumdataobject.h"
  32 #include "search.h"
  33
  34 SearchWidget::SearchWidget( QWidget *parent )
  35         : QWidget( parent ), m_timer( 0 )
  36 {
  37         QHBoxLayout *mainlay = new QHBoxLayout( this );
  38         mainlay->setMargin( 2 );
  39         mainlay->setSpacing( 5 );
  40
  41         mainlay->addWidget( new QLabel( i18n( "Search:" ), this ) );
  42
  43         m_searchLine = new KLineEdit( this );
  44         m_searchLine->setClearButtonShown(true);
  45     m_searchLine->setTrapReturnKey(true);
  46         connect( m_searchLine, SIGNAL( textChanged( const QString& ) ),
  47                  this, SLOT( searchTextChanged( const QString& ) ) );
  48     connect( m_searchLine, SIGNAL( returnPressed() ),
  49              this, SLOT( slotReturnPressed() ) );
  50         mainlay->addWidget( m_searchLine );
  51 }
  52
  53 SearchWidget::~SearchWidget()
  54 {
  55 }
  56
  57 void SearchWidget::giveFocus()
  58 {
  59         m_searchLine->setFocus( Qt::MouseFocusReason );
  60         m_searchLine->setCursorPosition( m_searchLine->text().length() );
  61 }
  62
  63 void SearchWidget::appendSearchText( const QString& text )
  64 {
  65         m_searchLine->setText( m_searchLine->text() + text );
  66 }
  67
  68 void SearchWidget::searchTextChanged( const QString& )
  69 {
  70         if ( m_timer )
  71         {
  72                 m_timer->stop();
  73         }
  74         else
  75         {
  76                 m_timer = new QTimer( this );
  77                 m_timer->setSingleShot( true );
  78                 connect( m_timer, SIGNAL( timeout() ), this, SLOT( doSearch() ) );
  79         }
  80         // 1/3 of second should be ok
  81         m_timer->start( 333 );
  82 }
  83
  84 void SearchWidget::slotReturnPressed()
  85 {
  86     if ( m_timer )
  87     {
  88         m_timer->stop();
  89     }
  90     doSearch();
  91 }
  92
  93 void SearchWidget::doSearch()
  94 {
  95         Search *s = KalziumDataObject::instance()->search();
  96         if ( !s ) return;
  97
  98         QString txt = m_searchLine->text();
  99         if ( txt.length() > 0 )
 100                 s->doSearch( txt, Search::SearchAll );
 101         else
 102                 s->resetSearch();
 103 }
 104
 105 #include "searchwidget.moc"