File: buttongroups-main-cpp.html

package info (click to toggle)
qt-x11 3%3A2.3.1-22
  • links: PTS
  • area: main
  • in suites: woody
  • size: 48,524 kB
  • ctags: 46,337
  • sloc: cpp: 260,077; ansic: 32,457; makefile: 31,131; yacc: 2,444; sh: 1,513; lex: 480; perl: 422; xml: 68; lisp: 15
file content (216 lines) | stat: -rw-r--r-- 9,300 bytes parent folder | download | duplicates (2) 
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
 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>
Qt Toolkit - buttongroups/main.cpp example file
</title><style type="text/css"><!--
h3.fn,span.fn { margin-left: 1cm; text-indent: -1cm; }
a:link { color: #004faf; text-decoration: none }
a:visited { color: #672967; text-decoration: none }body { background: white; color: black; }
--></style>
</head><body bgcolor="#ffffff">

<table width="100%">
<tr><td><a href="index.html">
<img width="100" height="100" src="qtlogo.png"
alt="Home" border="0"><img width="100"
height="100" src="face.png" alt="Home" border="0">
</a><td valign=top><div align=right><img src="dochead.png" width="472" height="27"><br>
<a href="classes.html"><b>Classes</b></a>
-<a href="annotated.html">Annotated</a>
- <a href="hierarchy.html">Tree</a>
-<a href="functions.html">Functions</a>
-<a href="index.html">Home</a>
-<a href="topicals.html"><b>Structure</b></a>
</div>
</table>

<h1 align=center>Buttons and Groupboxes</h1><br clear="all">

  This examples shows different types of Groupboxes (Buttongroups, etc.) and lots
  of different kinds of Buttons (Checkboxes, Radiobuttons, Pushbuttons, etc.)

  <hr>

  Header file: <pre>/****************************************************************************
** &#36;Id&#58; qt/examples/buttongroups/buttongroups.h   2.3.1   edited 2001-01-26 $
**
** 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.
**
*****************************************************************************/

#ifndef BUTTONS_GROUPS_H
#define BUTTONS_GROUPS_H

#include &lt;<a href="qwidget-h.html">qwidget.h</a>&gt;

class QCheckBox;
class QRadioButton;

class ButtonsGroups : public QWidget
{
    Q_OBJECT

public:
    ButtonsGroups( <a href="qwidget.html">QWidget</a> *parent = 0, const char *name = 0 );

protected:
    <a href="qcheckbox.html">QCheckBox</a> *state;
    <a href="qradiobutton.html">QRadioButton</a> *rb21, *rb22, *rb23;

protected slots:    
    void slotChangeGrp3State();

};

#endif
</pre>


  <hr>

  Implementation: <pre>/****************************************************************************
** &#36;Id&#58; qt/examples/buttongroups/buttongroups.cpp   2.3.1   edited 2001-01-26 $
**
** 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.
**
*****************************************************************************/

#include "buttongroups.h"

#include &lt;<a href="qbuttongroup-h.html">qbuttongroup.h</a>&gt;
#include &lt;<a href="qlayout-h.html">qlayout.h</a>&gt;
#include &lt;<a href="qradiobutton-h.html">qradiobutton.h</a>&gt;
#include &lt;<a href="qcheckbox-h.html">qcheckbox.h</a>&gt;
#include &lt;<a href="qgroupbox-h.html">qgroupbox.h</a>&gt;
#include &lt;<a href="qpushbutton-h.html">qpushbutton.h</a>&gt;

/*
 * Constructor
 *
 * Creates all child widgets of the ButtonGroups window
 */

ButtonsGroups::ButtonsGroups( <a href="qwidget.html">QWidget</a> *parent, const char *name )
    : <a href="qwidget.html">QWidget</a>( parent, name )
{
    // Create Widgets which allow easy layouting
    <a href="qvboxlayout.html">QVBoxLayout</a> *vbox = new <a href="qvboxlayout.html">QVBoxLayout</a>( this );
    <a href="qhboxlayout.html">QHBoxLayout</a> *box1 = new <a href="qhboxlayout.html">QHBoxLayout</a>( vbox );
    <a href="qhboxlayout.html">QHBoxLayout</a> *box2 = new <a href="qhboxlayout.html">QHBoxLayout</a>( vbox );

    // ------- first group

    // Create an exclusive button group
    <a href="qbuttongroup.html">QButtonGroup</a> *grp1 = new <a href="qbuttongroup.html">QButtonGroup</a>( 1, QGroupBox::Horizontal, "Button Group 1 (exclusive)", this);
    box1-&gt;<a href="qboxlayout.html#219265">addWidget</a>( grp1 );
    grp1-&gt;<a href="qbuttongroup.html#84fb45">setExclusive</a>( TRUE );

    // insert 3 radiobuttons
    <a href="qradiobutton.html">QRadioButton</a> *rb11 = new <a href="qradiobutton.html">QRadioButton</a>( "&amp;Radiobutton 1", grp1 );
    rb11-&gt;<a href="qradiobutton.html#11e2e3">setChecked</a>( TRUE );
    (void)new <a href="qradiobutton.html">QRadioButton</a>( "R&amp;adiobutton 2", grp1 );
    (void)new <a href="qradiobutton.html">QRadioButton</a>( "Ra&amp;diobutton 3", grp1 );

    // ------- second group

    // Create a non-exclusive buttongroup
    <a href="qbuttongroup.html">QButtonGroup</a> *grp2 = new <a href="qbuttongroup.html">QButtonGroup</a>( 1, QGroupBox::Horizontal, "Button Group 2 (non-exclusive)", this );
    box1-&gt;<a href="qboxlayout.html#219265">addWidget</a>( grp2 );
    grp2-&gt;<a href="qbuttongroup.html#84fb45">setExclusive</a>( FALSE );

    // insert 3 checkboxes
    (void)new <a href="qcheckbox.html">QCheckBox</a>( "&amp;Checkbox 1", grp2 );
    <a href="qcheckbox.html">QCheckBox</a> *cb12 = new <a href="qcheckbox.html">QCheckBox</a>( "C&amp;heckbox 2", grp2 );
    cb12-&gt;<a href="qcheckbox.html#f146fc">setChecked</a>( TRUE );
    <a href="qcheckbox.html">QCheckBox</a> *cb13 = new <a href="qcheckbox.html">QCheckBox</a>( "Triple &amp;State Button", grp2 );
    cb13-&gt;<a href="qcheckbox.html#5e5018">setTristate</a>( TRUE );
    cb13-&gt;<a href="qcheckbox.html#f146fc">setChecked</a>( TRUE );

    // ------------ third group

    // create a buttongroup which is exclusive for radiobuttons and non-exclusive for all other buttons
    <a href="qbuttongroup.html">QButtonGroup</a> *grp3 = new <a href="qbuttongroup.html">QButtonGroup</a>( 1, QGroupBox::Horizontal, "Button Group 3 (Radiobutton-exclusive)", this );
    box2-&gt;<a href="qboxlayout.html#219265">addWidget</a>( grp3 );
    grp3-&gt;<a href="qbuttongroup.html#34f3b2">setRadioButtonExclusive</a>( TRUE );

    // insert three radiobuttons
    rb21 = new <a href="qradiobutton.html">QRadioButton</a>( "Rad&amp;iobutton 1", grp3 );
    rb22 = new <a href="qradiobutton.html">QRadioButton</a>( "Radi&amp;obutton 2", grp3 );
    rb23 = new <a href="qradiobutton.html">QRadioButton</a>( "Radio&amp;button 3", grp3 );
    rb23-&gt;setChecked( TRUE );

    // insert a checkbox...
    state = new <a href="qcheckbox.html">QCheckBox</a>( "E&amp;nable Radiobuttons", grp3 );
    state-&gt;setChecked( TRUE );
    // ...and connect its SIGNAL clicked() with the SLOT slotChangeGrp3State()
    <a href="qobject.html#c2d209">connect</a>( state, SIGNAL( clicked() ), this, SLOT( <a href=#182>slotChangeGrp3State</a>() ) );

    // ------------ fourth group

    // create a groupbox which layouts its childs in a columns
    <a href="qgroupbox.html">QGroupBox</a> *grp4 = new <a href="qbuttongroup.html">QButtonGroup</a>( 1, QGroupBox::Horizontal, "Groupbox with normal buttons", this );
    box2-&gt;<a href="qboxlayout.html#219265">addWidget</a>( grp4 );

    // insert two pushbuttons...
    (void)new <a href="qpushbutton.html">QPushButton</a>( "&amp;Push Button", grp4 );
    <a href="qpushbutton.html">QPushButton</a> *tb = new <a href="qpushbutton.html">QPushButton</a>( "&amp;Toggle Button", grp4 );

    // ... and make the second one a toggle button
    tb-&gt;<a href="qpushbutton.html#792138">setToggleButton</a>( TRUE );
    tb-&gt;<a href="qpushbutton.html#280d7b">setOn</a>( TRUE );
}

/*
 * SLOT slotChangeGrp3State()
 *
 * enables/disables the radiobuttons of the third buttongroup
 */

void <a name="182"></a>ButtonsGroups::slotChangeGrp3State()
{
    rb21-&gt;setEnabled( state-&gt;isChecked() );
    rb22-&gt;setEnabled( state-&gt;isChecked() );
    rb23-&gt;setEnabled( state-&gt;isChecked() );
}
</pre>


  <hr>

  Main:
<pre>/****************************************************************************
** &#36;Id&#58; qt/examples/buttongroups/main.cpp   2.3.1   edited 2001-01-26 $
**
** 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.
**
*****************************************************************************/

#include "buttongroups.h"
#include &lt;<a name="qapplication.h"></a><a href="qapplication-h.html">qapplication.h</a>&gt;

int main( int argc, char **argv )
{
    <a name="QApplication"></a><a href="qapplication.html">QApplication</a> a( argc, argv );

    ButtonsGroups buttonsgroups;
    buttonsgroups.<a name="resize"></a><a href="qwidget.html#9775bb">resize</a>( 500, 250 );
    buttonsgroups.<a name="setCaption"></a><a href="qwidget.html#d4f007">setCaption</a>( "Examples for Buttons and Groups" );
    a.<a name="setMainWidget"></a><a href="qapplication.html#11c921">setMainWidget</a>( &amp;buttonsgroups );
    buttonsgroups.<a name="show"></a><a href="qwidget.html#ccc8f7">show</a>();

    return a.<a name="exec"></a><a href="qapplication.html#7076af">exec</a>();
}
</pre>
<p><address><hr><div align="center">
<table width="100%" cellspacing="0" border="0"><tr>
<td>Copyright  2000 Trolltech<td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a>
<td align="right"><div align="right">Qt version 2.3.1</div>
</table></div></address></body></html>