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# Range controls

This examples shows various types of range controls that are supported by TQt: dials, spin boxes and sliders.

Header file:

    /****************************************************************************
    ** $Id: qt/rangecontrols.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 RANGECONTROLS_H
    #define RANGECONTROLS_H

    #include <ntqvbox.h>

    class TQCheckBox;

    class RangeControls : public TQVBox
    {
        TQ_OBJECT

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

    private:
        TQCheckBox *notches, *wrapping;
    };

    #endif

Implementation:

    /****************************************************************************
    ** $Id: qt/rangecontrols.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 "rangecontrols.h"

    #include <ntqhbox.h>
    #include <ntqlcdnumber.h>
    #include <ntqspinbox.h>
    #include <ntqlabel.h>
    #include <ntqstring.h>
    #include <ntqslider.h>
    #include <ntqcheckbox.h>

    #include <limits.h>

    RangeControls::RangeControls( TQWidget *parent, const char *name )
        : TQVBox( parent, name )
    {
        TQHBox *row1 = new TQHBox( this );

        TQVBox *cell2 = new TQVBox( row1 );
        cell2->setMargin( 10 );
        cell2->setFrameStyle( TQFrame::WinPanel | TQFrame::Sunken );

        (void)new TQWidget( cell2 );

        TQLabel *label1 = new TQLabel( TQString( "Enter a value between\n%1 and %2:" ).arg( -INT_MAX ).arg( INT_MAX ), cell2 );
        label1->setMaximumHeight( label1->sizeHint().height() );
        TQSpinBox *sb1 = new TQSpinBox( -INT_MAX, INT_MAX, 1, cell2 );
        sb1->setValue( 0 );

        TQLabel *label2 = new TQLabel( "Enter a zoom value:", cell2 );
        label2->setMaximumHeight( label2->sizeHint().height() );
        TQSpinBox *sb2 = new TQSpinBox( 0, 1000, 10, cell2 );
        sb2->setSuffix( " %" );
        sb2->setSpecialValueText( "Automatic" );

        TQLabel *label3 = new TQLabel( "Enter a price:", cell2 );
        label3->setMaximumHeight( label3->sizeHint().height() );
        TQSpinBox *sb3 = new TQSpinBox( 0, INT_MAX, 1, cell2 );
        sb3->setPrefix( "$" );
        sb3->setValue( 355 );

        (void)new TQWidget( cell2 );

        TQHBox *row2 = new TQHBox( this );

        TQVBox *cell3 = new TQVBox( row2 );
        cell3->setMargin( 10 );
        cell3->setFrameStyle( TQFrame::WinPanel | TQFrame::Sunken );
        TQSlider *hslider = new TQSlider( 0, 64, 1, 33, TQt::Horizontal, cell3, "horizontal_s" );
        TQLCDNumber *lcd2 = new TQLCDNumber( 2, cell3 );
        lcd2->display( 33 );
        lcd2->setSegmentStyle( TQLCDNumber::Filled );
        connect( hslider, SIGNAL( valueChanged( int ) ), lcd2, SLOT( display( int ) ) );

        TQHBox *cell4 = new TQHBox( row2 );
        cell4->setFrameStyle( TQFrame::WinPanel | TQFrame::Sunken );
        cell4->setMargin( 10 );
        TQSlider *vslider = new TQSlider( 0, 64, 1, 8, TQt::Vertical, cell4 );
        TQLCDNumber *lcd3 = new TQLCDNumber( 3, cell4 );
        lcd3->display( 8 );
        connect( vslider, SIGNAL( valueChanged( int ) ), lcd3, SLOT( display( int ) ) );
    }

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

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

        RangeControls rangecontrols;
        rangecontrols.resize( 500, 300 );
        rangecontrols.setCaption( "TQt Example - Range Control Widgets" );
        a.setMainWidget( &rangecontrols );
        rangecontrols.show();

        return a.exec();
    }

See also Examples.