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
|
/****************************************************************************
**
** Copyright (C) 1992-2008 Trolltech ASA. 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 <qpopupmenu.h>
#include <qbuttongroup.h>
#include <qlayout.h>
#include <qradiobutton.h>
#include <qcheckbox.h>
#include <qgroupbox.h>
#include <qpushbutton.h>
/*
* Constructor
*
* Creates all child widgets of the ButtonGroups window
*/
ButtonsGroups::ButtonsGroups( QWidget *parent, const char *name )
: QWidget( parent, name )
{
// Create Widgets which allow easy layouting
QVBoxLayout *vbox = new QVBoxLayout( this, 11, 6 );
QHBoxLayout *box1 = new QHBoxLayout( vbox );
QHBoxLayout *box2 = new QHBoxLayout( vbox );
// ------- first group
// Create an exclusive button group
QButtonGroup *bgrp1 = new QButtonGroup( 1, QGroupBox::Horizontal, "Button Group 1 (exclusive)", this);
box1->addWidget( bgrp1 );
bgrp1->setExclusive( TRUE );
// insert 3 radiobuttons
QRadioButton *rb11 = new QRadioButton( "&Radiobutton 1", bgrp1 );
rb11->setChecked( TRUE );
(void)new QRadioButton( "R&adiobutton 2", bgrp1 );
(void)new QRadioButton( "Ra&diobutton 3", bgrp1 );
// ------- second group
// Create a non-exclusive buttongroup
QButtonGroup *bgrp2 = new QButtonGroup( 1, QGroupBox::Horizontal, "Button Group 2 (non-exclusive)", this );
box1->addWidget( bgrp2 );
bgrp2->setExclusive( FALSE );
// insert 3 checkboxes
(void)new QCheckBox( "&Checkbox 1", bgrp2 );
QCheckBox *cb12 = new QCheckBox( "C&heckbox 2", bgrp2 );
cb12->setChecked( TRUE );
QCheckBox *cb13 = new QCheckBox( "Triple &State Button", bgrp2 );
cb13->setTristate( TRUE );
cb13->setChecked( TRUE );
// ------------ third group
// create a buttongroup which is exclusive for radiobuttons and non-exclusive for all other buttons
QButtonGroup *bgrp3 = new QButtonGroup( 1, QGroupBox::Horizontal, "Button Group 3 (Radiobutton-exclusive)", this );
box2->addWidget( bgrp3 );
bgrp3->setRadioButtonExclusive( TRUE );
// insert three radiobuttons
rb21 = new QRadioButton( "Rad&iobutton 1", bgrp3 );
rb22 = new QRadioButton( "Radi&obutton 2", bgrp3 );
rb23 = new QRadioButton( "Radio&button 3", bgrp3 );
rb23->setChecked( TRUE );
// insert a checkbox...
state = new QCheckBox( "E&nable Radiobuttons", bgrp3 );
state->setChecked( TRUE );
// ...and connect its SIGNAL clicked() with the SLOT slotChangeGrp3State()
connect( state, SIGNAL( clicked() ), this, SLOT( slotChangeGrp3State() ) );
// ------------ fourth group
// create a groupbox which layouts its childs in a columns
QGroupBox *bgrp4 = new QButtonGroup( 1, QGroupBox::Horizontal, "Groupbox with normal buttons", this );
box2->addWidget( bgrp4 );
// insert four pushbuttons...
(void)new QPushButton( "&Push Button", bgrp4, "push" );
// now make the second one a toggle button
QPushButton *tb2 = new QPushButton( "&Toggle Button", bgrp4, "toggle" );
tb2->setToggleButton( TRUE );
tb2->setOn( TRUE );
// ... and make the third one a flat button
QPushButton *tb3 = new QPushButton( "&Flat Button", bgrp4, "flat" );
tb3->setFlat(TRUE);
// .. and the fourth a button with a menu
QPushButton *tb4 = new QPushButton( "Popup Button", bgrp4, "popup" );
QPopupMenu *menu = new QPopupMenu(tb4);
menu->insertItem("Item1", 0);
menu->insertItem("Item2", 1);
menu->insertItem("Item3", 2);
menu->insertItem("Item4", 3);
tb4->setPopup(menu);
}
/*
* SLOT slotChangeGrp3State()
*
* enables/disables the radiobuttons of the third buttongroup
*/
void ButtonsGroups::slotChangeGrp3State()
{
rb21->setEnabled( state->isChecked() );
rb22->setEnabled( state->isChecked() );
rb23->setEnabled( state->isChecked() );
}
|
