NAME

LibUI::Slider - Control to Display and Modify Integer Values via a Draggable Slider

SYNOPSIS

    use LibUI ':all';
    use LibUI::VBox;
    use LibUI::Window;
    use LibUI::Slider;
    Init && die;
    my $window = LibUI::Window->new( 'Hi', 320, 100, 0 );
    $window->setMargined( 1 );
    my $box    = LibUI::VBox->new();
    my $slider = LibUI::Slider->new( 1, 100 );
    $box->append( $slider, 0 );
    $slider->onChanged( sub { warn 'Sliding to ' . shift->value }, undef );
    $slider->onReleased( sub { warn 'Stopped at ' . shift->value }, undef );
    $window->setChild($box);
    $window->onClosing(
        sub {
            Quit();
            return 1;
        },
        undef
    );
    $window->show;
    Main();

DESCRIPTION

A LibUI::Slider object represents a control to display and modify integer values via a draggable slider.

Values are guaranteed to be within the specified range.

Sliders by default display a tool tip showing the current value when being dragged.

Sliders are horizontal only.

Functions

Not a lot here but... well, it's just a simple widget.

new( ... )

    my $sld = LibUI::Slider->new( 1, 100 );

Creates a new slider.

Expected parameters include:

$min - minimum value

$max - maximum value

The initial slider value equals the $minimum value.

In the current upstream implementation, $min and $max are swapped if $min is greater than $max. This may change in the future though.

hasToolTip( )

    if( $sld->hasToolTip ) {
        ...;
    }

Returns whether or not the slider has a tool tip.

setHasToolTip( ... )

    $sld->setHasToolTip( 0 );

Sets whether or not the slider has a tool tip.

onChanged( ... )

    $sld->onChanged(
    sub {
        my ($ctrl, $data) = @_;
        warn $ctrl->value;
    }, undef);

Registers a callback for when the slider value is changed by the user.

Expected parameters include:

$callback - CodeRef that should expect the following:

$sld - backreference to the instance that initiated the callback

$data - user data registered with the sender instance

$data - user data to be passed to the callback

Note: The callback is not triggered when calling setValue( ... ).

onReleased( ... )

    $sld->onReleased(
    sub {
        my ($ctrl, $data) = @_;
        warn $ctrl->value;
    }, undef);

Registers a callback for when the slider is released from dragging.

Expected parameters include:

$callback - CodeRef that should expect the following:

$sld - backreference to the instance that initiated the callback

$data - user data registered with the sender instance

$data - user data to be passed to the callback

setRange( ... )

    $sld->setRange( 10, 20 );

Sets the slider range.

Expected parameters include:

$min - minimum value

$max - maximum value

setValue( ... )

    $sld->setValue( 50 );

Sets the slider value.

value( ... )

    warn $sld->value( );

Returns the slider value.

LICENSE

Copyright (C) Sanko Robinson.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

AUTHOR

Sanko Robinson <sanko@cpan.org>

cpanm LibUI

perl -MCPAN -e shell
install LibUI