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krestrictedline.cpp
1 /*
2  *
3  *
4  * Implementation of KRestrictedLine
5  *
6  * Copyright (C) 1997 Michael Wiedmann, <mw@miwie.in-berlin.de>
7  *
8  * This library is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Library General Public
10  * License as published by the Free Software Foundation; either
11  * version 2 of the License, or (at your option) any later version.
12  *
13  * This library is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Library General Public License for more details.
17  *
18  * You should have received a copy of the GNU Library General Public
19  * License along with this library; if not, write to the Free
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  *
22  */
23 
24 #include <tqkeycode.h>
25 
26 #include "krestrictedline.h"
27 
28 KRestrictedLine::KRestrictedLine( TQWidget *parent,
29  const char *name,
30  const TQString& valid )
31  : KLineEdit( parent, name )
32 {
33  qsValidChars = valid;
34 }
35 
36 KRestrictedLine::~KRestrictedLine()
37 {
38  ;
39 }
40 
41 
42 void KRestrictedLine::keyPressEvent( TQKeyEvent *e )
43 {
44  // let TQLineEdit process "special" keys and return/enter
45  // so that we still can use the default key binding
46  if (e->key() == Key_Enter || e->key() == Key_Return || e->key() == Key_Delete || e->ascii() < 32)
47  {
48  TQLineEdit::keyPressEvent(e);
49  return;
50  }
51 
52  // do we have a list of valid chars &&
53  // is the pressed key in the list of valid chars?
54  if (!qsValidChars.isEmpty() && !qsValidChars.contains(e->ascii()))
55  {
56  // invalid char, emit signal and return
57  emit (invalidChar(e->key()));
58  return;
59  }
60  else
61  // valid char: let TQLineEdit process this key as usual
62  TQLineEdit::keyPressEvent(e);
63 
64  return;
65 }
66 
67 
68 void KRestrictedLine::setValidChars( const TQString& valid)
69 {
70  qsValidChars = valid;
71 }
72 
73 TQString KRestrictedLine::validChars() const
74 {
75  return qsValidChars;
76 }
77 
78 void KRestrictedLine::virtual_hook( int id, void* data )
79 { KLineEdit::virtual_hook( id, data ); }
80 
81 #include "krestrictedline.moc"
KLineEdit
An enhanced TQLineEdit widget for inputting text.
Definition: klineedit.h:146
KRestrictedLine::keyPressEvent
void keyPressEvent(TQKeyEvent *e)
Re-implemented for internal reasons.
Definition: krestrictedline.cpp:42
KRestrictedLine::setValidChars
void setValidChars(const TQString &valid)
All characters in the string valid are treated as acceptable characters.
Definition: krestrictedline.cpp:68
KRestrictedLine::invalidChar
void invalidChar(int)
Emitted when an invalid character was typed.
KRestrictedLine::validChars
TQString validChars() const
Definition: krestrictedline.cpp:73
KRestrictedLine::KRestrictedLine
KRestrictedLine(TQWidget *parent=0, const char *name=0, const TQString &valid=TQString::null)
Constructor: This contructor takes three - optional - arguments.
Definition: krestrictedline.cpp:28
KRestrictedLine::~KRestrictedLine
~KRestrictedLine()
Destructs the restricted line editor.
Definition: krestrictedline.cpp:36

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