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# Buttons and Groupboxes

This example shows different types of groupboxes (buttongroups, etc.) and different kinds of buttons (checkboxes, radiobuttons, pushbuttons, etc.).

Header file:

    /****************************************************************************
    ** $Id: qt/buttongroups.h   3.3.8   edited Jan 11 14:37 $
    **
    ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
    **
    ** This file is part of an example program for TQt.  This example
    ** program may be used, distributed and modified without limitation.
    **
    *****************************************************************************/

    #ifndef BUTTONS_GROUPS_H
    #define BUTTONS_GROUPS_H

    #include <ntqwidget.h>

    class TQCheckBox;
    class TQRadioButton;

    class ButtonsGroups : public TQWidget
    {
        TQ_OBJECT

    public:
        ButtonsGroups( TQWidget *parent = 0, const char *name = 0 );

    protected:
        TQCheckBox *state;
        TQRadioButton *rb21, *rb22, *rb23;

    protected slots:
        void slotChangeGrp3State();

    };

    #endif

Implementation:

    /****************************************************************************
    ** $Id: qt/buttongroups.cpp   3.3.8   edited Jan 11 14:37 $
    **
    ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
    **
    ** This file is part of an example program for TQt.  This example
    ** program may be used, distributed and modified without limitation.
    **
    *****************************************************************************/

    #include "buttongroups.h"

    #include <ntqpopupmenu.h>
    #include <ntqbuttongroup.h>
    #include <ntqlayout.h>
    #include <ntqradiobutton.h>
    #include <ntqcheckbox.h>
    #include <ntqgroupbox.h>
    #include <ntqpushbutton.h>

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

    ButtonsGroups::ButtonsGroups( TQWidget *parent, const char *name )
        : TQWidget( parent, name )
    {
        // Create Widgets which allow easy layouting
        TQVBoxLayout *vbox = new TQVBoxLayout( this, 11, 6 );
        TQHBoxLayout *box1 = new TQHBoxLayout( vbox );
        TQHBoxLayout *box2 = new TQHBoxLayout( vbox );

        // ------- first group

        // Create an exclusive button group
        TQButtonGroup *bgrp1 = new TQButtonGroup( 1, TQGroupBox::Horizontal, "Button Group 1 (exclusive)", this);
        box1->addWidget( bgrp1 );
        bgrp1->setExclusive( true );

        // insert 3 radiobuttons
        TQRadioButton *rb11 = new TQRadioButton( "&Radiobutton 1", bgrp1 );
        rb11->setChecked( true );
        (void)new TQRadioButton( "R&adiobutton 2", bgrp1 );
        (void)new TQRadioButton( "Ra&diobutton 3", bgrp1 );

        // ------- second group

        // Create a non-exclusive buttongroup
        TQButtonGroup *bgrp2 = new TQButtonGroup( 1, TQGroupBox::Horizontal, "Button Group 2 (non-exclusive)", this );
        box1->addWidget( bgrp2 );
        bgrp2->setExclusive( false );

        // insert 3 checkboxes
        (void)new TQCheckBox( "&Checkbox 1", bgrp2 );
        TQCheckBox *cb12 = new TQCheckBox( "C&heckbox 2", bgrp2 );
        cb12->setChecked( true );
        TQCheckBox *cb13 = new TQCheckBox( "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
        TQButtonGroup *bgrp3 = new TQButtonGroup( 1, TQGroupBox::Horizontal, "Button Group 3 (Radiobutton-exclusive)", this );
        box2->addWidget( bgrp3 );
        bgrp3->setRadioButtonExclusive( true );

        // insert three radiobuttons
        rb21 = new TQRadioButton( "Rad&iobutton 1", bgrp3 );
        rb22 = new TQRadioButton( "Radi&obutton 2", bgrp3 );
        rb23 = new TQRadioButton( "Radio&button 3", bgrp3 );
        rb23->setChecked( true );

        // insert a checkbox...
        state = new TQCheckBox( "E&nable Radiobuttons", bgrp3 );
        state->setChecked( true );
        // ...and connect its TQ_SIGNAL clicked() with the TQ_SLOT slotChangeGrp3State()
        connect( state, TQ_SIGNAL( clicked() ), this, TQ_SLOT( slotChangeGrp3State() ) );

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

        // create a groupbox which layouts its childs in a columns
        TQGroupBox *bgrp4 = new TQButtonGroup( 1, TQGroupBox::Horizontal, "Groupbox with normal buttons", this );
        box2->addWidget( bgrp4 );

        // insert four pushbuttons...
        (void)new TQPushButton( "&Push Button", bgrp4, "push" );

        // now make the second one a toggle button
        TQPushButton *tb2 = new TQPushButton( "&Toggle Button", bgrp4, "toggle" );
        tb2->setToggleButton( true );
        tb2->setOn( true );

        // ... and make the third one a flat button
        TQPushButton *tb3 = new TQPushButton( "&Flat Button", bgrp4, "flat" );
        tb3->setFlat(true);

        // .. and the fourth a button with a menu
        TQPushButton *tb4 = new TQPushButton( "Popup Button", bgrp4, "popup" );
        TQPopupMenu *menu = new TQPopupMenu(tb4);
        menu->insertItem("Item1", 0);
        menu->insertItem("Item2", 1);
        menu->insertItem("Item3", 2);
        menu->insertItem("Item4", 3);
        tb4->setPopup(menu);
    }

    /*
     * TQ_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() );
    }

Main:

    /****************************************************************************
    ** $Id: qt/main.cpp   3.3.8   edited Jan 11 14:37 $
    **
    ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
    **
    ** This file is part of an example program for TQt.  This example
    ** program may be used, distributed and modified without limitation.
    **
    *****************************************************************************/

    #include "buttongroups.h"
    #include <ntqapplication.h>

    int main( int argc, char **argv )
    {
        TQApplication a( argc, argv );

        ButtonsGroups buttonsgroups;
        buttonsgroups.resize( 500, 250 );
        buttonsgroups.setCaption( "TQt Example - Buttongroups" );
        a.setMainWidget( &buttonsgroups );
        buttonsgroups.show();

        return a.exec();
    }

See also Examples.