krestrictedline.cpp
/*
*
*
* 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 <qkeycode.h>
#include "krestrictedline.h"
KRestrictedLine::KRestrictedLine( QWidget *parent,
const char *name,
const QString& valid )
: KLineEdit( parent, name )
{
qsValidChars = valid;
}
KRestrictedLine::~KRestrictedLine()
{
;
}
void KRestrictedLine::keyPressEvent( QKeyEvent *e )
{
// let QLineEdit process "special" keys and return/enter
// so that we still can use the default key binding
if (e->key() == Key_Enter || e->key() == Key_Return || e->key() == Key_Delete || e->ascii() < 32)
{
QLineEdit::keyPressEvent(e);
return;
}
// do we have a list of valid chars &&
// is the pressed key in the list of valid chars?
if (!qsValidChars.isEmpty() && !qsValidChars.contains(e->ascii()))
{
// invalid char, emit signal and return
emit (invalidChar(e->key()));
return;
}
else
// valid char: let QLineEdit process this key as usual
QLineEdit::keyPressEvent(e);
return;
}
void KRestrictedLine::setValidChars( const QString& valid)
{
qsValidChars = valid;
}
QString KRestrictedLine::validChars() const
{
return qsValidChars;
}
void KRestrictedLine::virtual_hook( int id, void* data )
{ KLineEdit::virtual_hook( id, data ); }
#include "krestrictedline.moc"
KRestrictedLine::KRestrictedLine
KRestrictedLine(QWidget *parent=0, const char *name=0, const QString &valid=QString::null)
Constructor: This contructor takes three - optional - arguments.
Definition: krestrictedline.cpp:28
KRestrictedLine::invalidChar
void invalidChar(int)
Emitted when an invalid character was typed.
KRestrictedLine::keyPressEvent
void keyPressEvent(QKeyEvent *e)
Re-implemented for internal reasons.
Definition: krestrictedline.cpp:42
KRestrictedLine::~KRestrictedLine
~KRestrictedLine()
Destructs the restricted line editor.
Definition: krestrictedline.cpp:36
KLineEdit
An enhanced QLineEdit widget for inputting text.
Definition: klineedit.h:145
KRestrictedLine::setValidChars
void setValidChars(const QString &valid)
All characters in the string valid are treated as acceptable characters.
Definition: krestrictedline.cpp:68
KRestrictedLine::validChars
QString validChars() const

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