NAME

UI::Various::RichTerm::Box - concrete implementation of UI::Various::Box

SYNOPSIS

    # This module should never be used directly!
    # It is used indirectly via the following:
    use UI::Various::Box;

ABSTRACT

This module is the specific implementation of UI::Various::Box using the rich terminal UI.

DESCRIPTION

The documentation of this module is only intended for developers of the package itself.

METHODS

_prepare - prepare UI element

    ($width, $height) = $ui_element->_prepare($content_width, $prefix_length);

example:

    my ($w, $h) = $_->_prepare($content_width, $pre_len);
    $width < $w  and  $width = $w;
    $height += $h;

parameters:

    $content_width      preferred width of content
    $prefix_length      the length of a prefix for active UI elements

description:

Prepare output of the UI element by determining and returning the space it wants or needs. The method should only be called from other UI::Various::RichTerm container elements!

Note that $content_width initially already includes one prefix length as that's the standard needed by all other UI elements.

returns:

width and height the UI element will require or need when printed

_show - return formatted UI element

    $string = $ui_element->_show($prefix, $width, $height, $pre_active);

example:

    my ($w, $h) = $_->_prepare($content_width, $pre_len);
    ...
    $_->_show('    ', $w, $h, $pre_active);

parameters:

    $prefix             text in front of first line
    $width              the width returned by _prepare above
    $height             the height returned by _prepare above
    $pre_active         format string for prefixes

description:

Return the formatted (rectangular) text box of the UI element. Its height will be exactly as specified, unless there hasn't been enough space. The weight is similarly as specified (as the widths of all possible prefixes already have been returned by _prepare). The method should only be called from other UI::Various::RichTerm container elements!

returns:

the rectangular text box for UI element

SEE ALSO

UI::Various, UI::Various::Box

LICENSE

Copyright (C) Thomas Dorner.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See LICENSE file for more details.

AUTHOR

Thomas Dorner <dorner (at) cpan (dot) org>

cpanm UI::Various

perl -MCPAN -e shell
install UI::Various