File indexing completed on 2024-04-21 14:55:58

 /*
  *
  *
  * Implementation of KRestrictedLine
  *
  * Copyright (C) 1997 Michael Wiedmann, <mw@miwie.in-berlin.de>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * 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; if not, write to the Free
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  *
  */
 
 #include "krestrictedline.h"
 #include <kdebug.h>
 
 #include <QKeyEvent>
 
 class KRestrictedLinePrivate
 {
 public:
     /// QString of valid characters for this line
     QString qsValidChars;
 };
 
 KRestrictedLine::KRestrictedLine(QWidget *parent)
     : KLineEdit(parent)
     , d(new KRestrictedLinePrivate)
 {
 }
 
 KRestrictedLine::~KRestrictedLine()
 {
     delete d;
 }
 
 void KRestrictedLine::keyPressEvent(QKeyEvent *e)
 {
     // let KLineEdit process "special" keys and return/enter
     // so that we still can use the default key binding
     if (e->key() == Qt::Key_Enter || e->key() == Qt::Key_Return || e->key() == Qt::Key_Delete
             || e->key() == Qt::Key_Backspace
             || (e->modifiers() & (Qt::ControlModifier | Qt::AltModifier
                                   | Qt::MetaModifier | Qt::GroupSwitchModifier))) {
         KLineEdit::keyPressEvent(e);
         return;
     }
 
     // do we have a list of valid chars &&
     // is the pressed key in the list of valid chars?
     if (!d->qsValidChars.isEmpty() && !d->qsValidChars.contains(e->text())) {
         // invalid char, emit signal and return
         emit invalidChar(e->key());
     } else {
         // valid char: let KLineEdit process this key as usual
         KLineEdit::keyPressEvent(e);
     }
 }
 
 void KRestrictedLine::inputMethodEvent(QInputMethodEvent *e)
 {
     const QString str = e->commitString();
     if (!d->qsValidChars.isEmpty() && !str.isEmpty()) {
         bool allOK = true;
         Q_FOREACH (QChar ch, str) {
             if (!d->qsValidChars.contains(ch)) {
                 emit invalidChar(ch.unicode());
                 allOK = false;
             }
         }
         // ## we can't remove invalid chars from the string, however.
         // we really need a validator (with a different signal like invalidChar(QChar)
         // or invalidCharacters(QString) maybe.
 
         if (!allOK) {
             return;
         }
     }
 
     KLineEdit::inputMethodEvent(e);
 }
 
 void KRestrictedLine::setValidChars(const QString &valid)
 {
     d->qsValidChars = valid;
 }
 
 QString KRestrictedLine::validChars() const
 {
     return d->qsValidChars;
 }
 
 #include "moc_krestrictedline.cpp"