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241 lines
11 KiB
241 lines
11 KiB
14 years ago
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/buttongroups/buttongroups.doc:4 -->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>Buttons and Groupboxes</title>
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<style type="text/css"><!--
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fn { margin-left: 1cm; text-indent: -1cm; }
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a:visited { color: #672967; text-decoration: none }
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--></style>
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</head>
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<body>
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<table border="0" cellpadding="0" cellspacing="0" width="100%">
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<tr bgcolor="#E5E5E5">
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<td valign=center>
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<a href="index.html">
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<font color="#004faf">Home</font></a>
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| <a href="classes.html">
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<font color="#004faf">All Classes</font></a>
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<font color="#004faf">Main Classes</font></a>
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<font color="#004faf">Annotated</font></a>
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<font color="#004faf">Grouped Classes</font></a>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>Buttons and Groupboxes</h1>
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<p>
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This example shows different types of groupboxes (buttongroups, etc.) and
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different kinds of buttons (checkboxes, radiobuttons, pushbuttons, etc.).
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<p> <hr>
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<p> Header file:
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<p> <pre>/****************************************************************************
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** $Id: qt/buttongroups.h 3.3.8 edited Jan 11 14:37 $
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**
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** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for Qt. This example
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** program may be used, distributed and modified without limitation.
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**
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*****************************************************************************/
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#ifndef BUTTONS_GROUPS_H
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#define BUTTONS_GROUPS_H
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#include <<a href="qwidget-h.html">qwidget.h</a>>
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class QCheckBox;
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class QRadioButton;
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class ButtonsGroups : public <a href="qwidget.html">QWidget</a>
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{
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<a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a>
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public:
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ButtonsGroups( <a href="qwidget.html">QWidget</a> *parent = 0, const char *name = 0 );
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protected:
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<a href="qcheckbox.html">QCheckBox</a> *state;
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<a href="qradiobutton.html">QRadioButton</a> *rb21, *rb22, *rb23;
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protected slots:
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void slotChangeGrp3State();
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};
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#endif
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</pre>
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<p> <hr>
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<p> Implementation:
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<p> <pre>/****************************************************************************
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** $Id: qt/buttongroups.cpp 3.3.8 edited Jan 11 14:37 $
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**
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** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for Qt. This example
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** program may be used, distributed and modified without limitation.
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**
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*****************************************************************************/
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#include "buttongroups.h"
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#include <<a href="qpopupmenu-h.html">qpopupmenu.h</a>>
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#include <<a href="qbuttongroup-h.html">qbuttongroup.h</a>>
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#include <<a href="qlayout-h.html">qlayout.h</a>>
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#include <<a href="qradiobutton-h.html">qradiobutton.h</a>>
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#include <<a href="qcheckbox-h.html">qcheckbox.h</a>>
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#include <<a href="qgroupbox-h.html">qgroupbox.h</a>>
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#include <<a href="qpushbutton-h.html">qpushbutton.h</a>>
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/*
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* Constructor
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*
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* Creates all child widgets of the ButtonGroups window
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*/
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<a name="f261"></a>ButtonsGroups::ButtonsGroups( <a href="qwidget.html">QWidget</a> *parent, const char *name )
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: <a href="qwidget.html">QWidget</a>( parent, name )
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{
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// Create Widgets which allow easy layouting
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<a href="qvboxlayout.html">QVBoxLayout</a> *vbox = new <a href="qvboxlayout.html">QVBoxLayout</a>( this, 11, 6 );
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<a href="qhboxlayout.html">QHBoxLayout</a> *box1 = new <a href="qhboxlayout.html">QHBoxLayout</a>( vbox );
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<a href="qhboxlayout.html">QHBoxLayout</a> *box2 = new <a href="qhboxlayout.html">QHBoxLayout</a>( vbox );
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// ------- first group
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// Create an exclusive button group
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<a href="qbuttongroup.html">QButtonGroup</a> *bgrp1 = new <a href="qbuttongroup.html">QButtonGroup</a>( 1, QGroupBox::Horizontal, "Button Group 1 (exclusive)", this);
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box1-><a href="qboxlayout.html#addWidget">addWidget</a>( bgrp1 );
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<a name="x549"></a> bgrp1-><a href="qbuttongroup.html#setExclusive">setExclusive</a>( TRUE );
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// insert 3 radiobuttons
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<a href="qradiobutton.html">QRadioButton</a> *rb11 = new <a href="qradiobutton.html">QRadioButton</a>( "&Radiobutton 1", bgrp1 );
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<a name="x559"></a> rb11-><a href="qradiobutton.html#setChecked">setChecked</a>( TRUE );
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(void)new <a href="qradiobutton.html">QRadioButton</a>( "R&adiobutton 2", bgrp1 );
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(void)new <a href="qradiobutton.html">QRadioButton</a>( "Ra&diobutton 3", bgrp1 );
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// ------- second group
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// Create a non-exclusive buttongroup
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<a href="qbuttongroup.html">QButtonGroup</a> *bgrp2 = new <a href="qbuttongroup.html">QButtonGroup</a>( 1, QGroupBox::Horizontal, "Button Group 2 (non-exclusive)", this );
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box1-><a href="qboxlayout.html#addWidget">addWidget</a>( bgrp2 );
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bgrp2-><a href="qbuttongroup.html#setExclusive">setExclusive</a>( FALSE );
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// insert 3 checkboxes
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(void)new <a href="qcheckbox.html">QCheckBox</a>( "&Checkbox 1", bgrp2 );
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<a href="qcheckbox.html">QCheckBox</a> *cb12 = new <a href="qcheckbox.html">QCheckBox</a>( "C&heckbox 2", bgrp2 );
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<a name="x552"></a> cb12-><a href="qcheckbox.html#setChecked">setChecked</a>( TRUE );
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<a href="qcheckbox.html">QCheckBox</a> *cb13 = new <a href="qcheckbox.html">QCheckBox</a>( "Triple &State Button", bgrp2 );
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<a name="x553"></a> cb13-><a href="qcheckbox.html#setTristate">setTristate</a>( TRUE );
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cb13-><a href="qcheckbox.html#setChecked">setChecked</a>( TRUE );
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// ------------ third group
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// create a buttongroup which is exclusive for radiobuttons and non-exclusive for all other buttons
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<a href="qbuttongroup.html">QButtonGroup</a> *bgrp3 = new <a href="qbuttongroup.html">QButtonGroup</a>( 1, QGroupBox::Horizontal, "Button Group 3 (Radiobutton-exclusive)", this );
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box2-><a href="qboxlayout.html#addWidget">addWidget</a>( bgrp3 );
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<a name="x550"></a> bgrp3-><a href="qbuttongroup.html#setRadioButtonExclusive">setRadioButtonExclusive</a>( TRUE );
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// insert three radiobuttons
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rb21 = new <a href="qradiobutton.html">QRadioButton</a>( "Rad&iobutton 1", bgrp3 );
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rb22 = new <a href="qradiobutton.html">QRadioButton</a>( "Radi&obutton 2", bgrp3 );
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rb23 = new <a href="qradiobutton.html">QRadioButton</a>( "Radio&button 3", bgrp3 );
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rb23-><a href="qradiobutton.html#setChecked">setChecked</a>( TRUE );
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// insert a checkbox...
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state = new <a href="qcheckbox.html">QCheckBox</a>( "E&nable Radiobuttons", bgrp3 );
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state-><a href="qcheckbox.html#setChecked">setChecked</a>( TRUE );
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// ...and connect its SIGNAL clicked() with the SLOT slotChangeGrp3State()
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<a href="qobject.html#connect">connect</a>( state, SIGNAL( <a href="qbutton.html#clicked">clicked</a>() ), this, SLOT( slotChangeGrp3State() ) );
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// ------------ fourth group
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// create a groupbox which layouts its childs in a columns
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<a href="qgroupbox.html">QGroupBox</a> *bgrp4 = new <a href="qbuttongroup.html">QButtonGroup</a>( 1, QGroupBox::Horizontal, "Groupbox with normal buttons", this );
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box2-><a href="qboxlayout.html#addWidget">addWidget</a>( bgrp4 );
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// insert four pushbuttons...
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(void)new <a href="qpushbutton.html">QPushButton</a>( "&Push Button", bgrp4, "push" );
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// now make the second one a toggle button
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<a href="qpushbutton.html">QPushButton</a> *tb2 = new <a href="qpushbutton.html">QPushButton</a>( "&Toggle Button", bgrp4, "toggle" );
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<a name="x558"></a> tb2-><a href="qpushbutton.html#setToggleButton">setToggleButton</a>( TRUE );
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<a name="x556"></a> tb2-><a href="qpushbutton.html#setOn">setOn</a>( TRUE );
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// ... and make the third one a flat button
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<a href="qpushbutton.html">QPushButton</a> *tb3 = new <a href="qpushbutton.html">QPushButton</a>( "&Flat Button", bgrp4, "flat" );
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<a name="x555"></a> tb3-><a href="qpushbutton.html#setFlat">setFlat</a>(TRUE);
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// .. and the fourth a button with a menu
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<a href="qpushbutton.html">QPushButton</a> *tb4 = new <a href="qpushbutton.html">QPushButton</a>( "Popup Button", bgrp4, "popup" );
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<a href="qpopupmenu.html">QPopupMenu</a> *menu = new <a href="qpopupmenu.html">QPopupMenu</a>(tb4);
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menu-><a href="qmenudata.html#insertItem">insertItem</a>("Item1", 0);
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menu-><a href="qmenudata.html#insertItem">insertItem</a>("Item2", 1);
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menu-><a href="qmenudata.html#insertItem">insertItem</a>("Item3", 2);
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menu-><a href="qmenudata.html#insertItem">insertItem</a>("Item4", 3);
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<a name="x557"></a> tb4-><a href="qpushbutton.html#setPopup">setPopup</a>(menu);
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}
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/*
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* SLOT slotChangeGrp3State()
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*
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* enables/disables the radiobuttons of the third buttongroup
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*/
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void <a name="f262"></a>ButtonsGroups::slotChangeGrp3State()
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{
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<a name="x560"></a><a name="x551"></a> rb21-><a href="qwidget.html#setEnabled">setEnabled</a>( state-><a href="qcheckbox.html#isChecked">isChecked</a>() );
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rb22-><a href="qwidget.html#setEnabled">setEnabled</a>( state-><a href="qcheckbox.html#isChecked">isChecked</a>() );
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rb23-><a href="qwidget.html#setEnabled">setEnabled</a>( state-><a href="qcheckbox.html#isChecked">isChecked</a>() );
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}
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</pre>
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<p> <hr>
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<p> Main:
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<pre>/****************************************************************************
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** $Id: qt/main.cpp 3.3.8 edited Jan 11 14:37 $
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**
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** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for Qt. This example
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** program may be used, distributed and modified without limitation.
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**
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*****************************************************************************/
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#include "buttongroups.h"
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#include <<a href="qapplication-h.html">qapplication.h</a>>
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int main( int argc, char **argv )
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{
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<a href="qapplication.html">QApplication</a> a( argc, argv );
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ButtonsGroups buttonsgroups;
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buttonsgroups.<a href="qwidget.html#resize">resize</a>( 500, 250 );
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buttonsgroups.<a href="qwidget.html#setCaption">setCaption</a>( "Qt Example - Buttongroups" );
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a.<a href="qapplication.html#setMainWidget">setMainWidget</a>( &buttonsgroups );
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buttonsgroups.<a href="qwidget.html#show">show</a>();
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return a.<a href="qapplication.html#exec">exec</a>();
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}
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</pre>
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<p>See also <a href="examples.html">Examples</a>.
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<!-- eof -->
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<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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||
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>Qt 3.3.8</div>
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</table></div></address></body>
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</html>
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