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
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
/***************************************************************************
* $Id$
**
* Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
**
* This file is part of an example program for Qt. This example
* program may be used, distributed and modified without limitation.
**
****************************************************************************/
import org.kde.qt.*;
class LineEdits extends TQGroupBox
{
protected TQLineEdit lined1, lined2, lined3, lined4;
protected TQComboBox combo1, combo2, combo3, combo4;
/*
Constructor
*
Creates child widgets of the LineEdits widget
*/
LineEdits( )
{
this(null, null);
}
LineEdits( TQWidget parent, String name )
{
super( 0, Horizontal, "Line edits", parent, name );
setMargin( 10 );
TQVBoxLayout box = new TQVBoxLayout( layout() );
TQHBoxLayout row1 = new TQHBoxLayout( box );
row1.setMargin( 5 );
// Create a Label
TQLabel label = new TQLabel( "Echo Mode: ", this);
row1.addWidget( label );
// Create a Combobox with three items...
combo1 = new TQComboBox( false, this );
row1.addWidget( combo1 );
combo1.insertItem( "Normal", -1 );
combo1.insertItem( "Password", -1 );
combo1.insertItem( "No Echo", -1 );
// ...and connect the activated() SIGNAL with the slotEchoChanged() SLOT to be able
// to react when an item is selected
connect( combo1, SIGNAL(" activated( int )"), this, SLOT(" slotEchoChanged( int )") );
// insert the first LineEdit
lined1 = new TQLineEdit( this );
box.addWidget( lined1 );
// another widget which is used for layouting
TQHBoxLayout row2 = new TQHBoxLayout( box );
row2.setMargin( 5 );
// and the second label
label = new TQLabel( "Validator: ", this );
row2.addWidget( label );
// A second Combobox with again three items...
combo2 = new TQComboBox( false, this );
row2.addWidget( combo2 );
combo2.insertItem( "No Validator", -1 );
combo2.insertItem( "Integer Validator", -1 );
combo2.insertItem( "Double Validator", -1 );
// ...and again the activated() SIGNAL gets connected with a SLOT
connect( combo2, SIGNAL(" activated( int )"), this, SLOT(" slotValidatorChanged( int )") );
// and the second LineEdit
lined2 = new TQLineEdit( this );
box.addWidget( lined2 );
// yet another widget which is used for layouting
TQHBoxLayout row3 = new TQHBoxLayout( box );
row3.setMargin( 5 );
// we need a label for this too
label = new TQLabel( "Alignment: ", this );
row3.addWidget( label );
// A combo box for setting alignment
combo3 = new TQComboBox( false, this );
row3.addWidget( combo3 );
combo3.insertItem( "Left", -1 );
combo3.insertItem( "Centered", -1 );
combo3.insertItem( "Right", -1 );
// ...and again the activated() SIGNAL gets connected with a SLOT
connect( combo3, SIGNAL(" activated( int )"), this, SLOT(" slotAlignmentChanged( int )") );
// and the third lineedit
lined3 = new TQLineEdit( this );
box.addWidget( lined3 );
// last widget used for layouting
TQHBox row4 = new TQHBox( this );
box.addWidget( row4 );
row4.setMargin( 5 );
// last label
new TQLabel( "Read-Only: ", row4 );
// A combo box for setting alignment
combo4 = new TQComboBox( false, row4 );
combo4.insertItem( "False", -1 );
combo4.insertItem( "True", -1 );
// ...and again the activated() SIGNAL gets connected with a SLOT
connect( combo4, SIGNAL(" activated( int )"), this, SLOT(" slotReadOnlyChanged( int )") );
// and the last lineedit
lined4 = new TQLineEdit( this );
box.addWidget( lined4 );
// give the first LineEdit the focus at the beginning
lined1.setFocus();
}
/*
SLOT slotEchoChanged( int i )
*
i contains the number of the item which the user has been chosen in the
first Combobox. According to this value, we set the Echo-Mode for the
first LineEdit.
*/
void slotEchoChanged( int i )
{
switch ( i ) {
case 0:
lined1.setEchoMode( TQLineEdit.Normal );
break;
case 1:
lined1.setEchoMode( TQLineEdit.Password );
break;
case 2:
lined1.setEchoMode( TQLineEdit.NoEcho );
break;
}
lined1.setFocus();
}
/*
SLOT slotValidatorChanged( int i )
*
i contains the number of the item which the user has been chosen in the
second Combobox. According to this value, we set a validator for the
second LineEdit. A validator checks in a LineEdit each character which
the user enters and accepts it if it is valid, else the character gets
ignored and not inserted into the lineedit.
*/
void slotValidatorChanged( int i )
{
switch ( i ) {
case 0:
lined2.setValidator( null );
break;
case 1:
lined2.setValidator( new TQIntValidator( lined2 ) );
break;
case 2:
lined2.setValidator( new TQDoubleValidator( -999.0, 999.0, 2,
lined2 ) );
break;
}
lined2.setText( "" );
lined2.setFocus();
}
/*
SLOT slotAlignmentChanged( int i )
*
i contains the number of the item which the user has been chosen in
the third Combobox. According to this value, we set an alignment
third LineEdit.
*/
void slotAlignmentChanged( int i )
{
switch ( i ) {
case 0:
lined3.setAlignment( TQLineEdit.AlignLeft );
break;
case 1:
lined3.setAlignment( TQLineEdit.AlignCenter );
break;
case 2:
lined3.setAlignment( TQLineEdit.AlignRight );
break;
}
lined3.setFocus();
}
/*
SLOT slotReadOnlyChanged( int i )
*
i contains the number of the item which the user has been chosen in
the fourth Combobox. According to this value, we toggle read-only.
*/
void slotReadOnlyChanged( int i )
{
switch ( i ) {
case 0:
lined4.setReadOnly( false );
break;
case 1:
lined4.setReadOnly( true );
break;
}
lined4.setFocus();
}
}
|
