MainWindow/SearchBar.cpp

   1 /* Copyright (C) 2003-2006 Jesper K. Pedersen <blackie@kde.org>
   2
   3    This program is free software; you can redistribute it and/or
   4    modify it under the terms of the GNU General Public
   5    License as published by the Free Software Foundation; either
   6    version 2 of the License, or (at your option) any later version.
   7
   8    This program is distributed in the hope that it will be useful,
   9    but WITHOUT ANY WARRANTY; without even the implied warranty of
  10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11    General Public License for more details.
  12
  13    You should have received a copy of the GNU General Public License
  14    along with this program; see the file COPYING.  If not, write to
  15    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  16    Boston, MA 02110-1301, USA.
  17 */
  18 #include "SearchBar.h"
  19 #include <klineedit.h>
  20 #include <kmainwindow.h>
  21 #include <qlabel.h>
  22 #include <QKeyEvent>
  23 #include <QEvent>
  24 #include <klocale.h>
  25 #include <kaction.h>
  26 #include <qapplication.h>
  27 #include <kactioncollection.h>
  28
  29 MainWindow::SearchBar::SearchBar( KMainWindow* parent )
  30     : KToolBar( parent )
  31 {
  32     QLabel* label = new QLabel( i18n("Search:") + QString::fromLatin1(" ") );
  33     addWidget( label );
  34
  35     _edit = new KLineEdit( this );
  36     _edit->setClearButtonShown(true);
  37     label->setBuddy( _edit );
  38
  39     addWidget( _edit );
  40     connect( _edit, SIGNAL( textChanged( const QString& ) ), this, SIGNAL( textChanged( const QString& ) ) );
  41     connect( _edit, SIGNAL( returnPressed() ), this, SIGNAL( returnPressed() ) );
  42
  43     _edit->installEventFilter( this );
  44 }
  45
  46 bool MainWindow::SearchBar::eventFilter( QObject* , QEvent* e )
  47 {
  48     if ( e->type() == QEvent::KeyPress ) {
  49         QKeyEvent* ke = static_cast<QKeyEvent*>( e );
  50         if ( ke->key() == Qt::Key_Up ||
  51              ke->key() == Qt::Key_Down ||
  52              ke->key() == Qt::Key_Left ||
  53              ke->key() == Qt::Key_Right ||
  54              ke->key() == Qt::Key_PageDown ||
  55              ke->key() == Qt::Key_PageUp ||
  56              ke->key() == Qt::Key_Home ||
  57              ke->key() == Qt::Key_End ) {
  58             emit keyPressed( ke );
  59             return true;
  60         }
  61         else if ( ke->key() == Qt::Key_Enter || ke->key() == Qt::Key_Return ) {
  62             // If I don't interpret return and enter here, but simply rely
  63             // on QLineEdit itself to emit the signal, then  it will
  64             // propagate to the main window, and from there be delivered to
  65             // the central widget.
  66             emit returnPressed();
  67             return true;
  68         }
  69         else if ( ke->key() == Qt::Key_Escape )
  70             reset();
  71     }
  72     return false;
  73 }
  74
  75 void MainWindow::SearchBar::reset()
  76 {
  77     _edit->clear();
  78 }
  79
  80 /**
  81  * This was originally just a call to setEnabled() on the SearchBar itself,
  82  * but due to a bug in either KDE or Qt, this resulted in the bar never
  83  * being enabled again after a disable.
  84  */
  85 void MainWindow::SearchBar::setLineEditEnabled(bool b)
  86 {
  87     _edit->setEnabled(b);
  88     _edit->setFocus();
  89 }
  90
  91 #include "SearchBar.moc"