summaryrefslogtreecommitdiffstats
path: root/tdeui/krestrictedline.h
blob: 26af032b811078d5d72986d34d06542fde8e7b8d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
/*
 *
 * $Id$
 *
 * Definition of KRestrictedLine
 *
 * Copyright (C) 1997 Michael Wiedmann, <[email protected]>
 *
 * 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
 *
 */

#ifndef KRESTRICTEDLINE_H
#define KRESTRICTEDLINE_H

#include <klineedit.h>

/**
 * @short A line editor for restricted character sets.
 *
 * The KRestrictedLine widget is a variant of TQLineEdit which
 * accepts only a restricted set of characters as input.
 * All other characters will be discarded and the signal invalidChar()
 * will be emitted for each of them.
 *
 * Valid characters can be passed as a TQString to the constructor
 * or set afterwards via setValidChars().
 * The default key bindings of TQLineEdit are still in effect.
 *
 * @author Michael Wiedmann <[email protected]>
 */
class TDEUI_EXPORT KRestrictedLine : public KLineEdit
{
  TQ_OBJECT
  TQ_PROPERTY( TQString validChars READ validChars WRITE setValidChars )

public:

  /**
   * Constructor: This contructor takes three - optional - arguments.
   *  The first two parameters are simply passed on to TQLineEdit.
   *  @param parent   pointer to the parent widget
   *  @param name     pointer to the name of this widget
   *  @param valid    pointer to set of valid characters
   */
  KRestrictedLine( TQWidget *parent=0, const char *name=0,
		   const TQString& valid = TQString::null);

  /**
   * Destructs the restricted line editor.
   */
  ~KRestrictedLine();

  /**
   * All characters in the string valid are treated as
   * acceptable characters.
   */
  void setValidChars(const TQString& valid);
  /**
   * @return the string of acceptable characters.
   */
  TQString validChars() const;

signals:

  /**
   * Emitted when an invalid character was typed.
   */
  void	invalidChar(int);

protected:
  void	keyPressEvent( TQKeyEvent *e );

private:
  /// TQString of valid characters for this line
  TQString	qsValidChars;
protected:
  virtual void virtual_hook( int id, void* data );
private:
  class KRestrictedLinePrivate* d;
};

#endif // KRESTRICTEDLINE_H