1Curses::UI::Common(3) User Contributed Perl DocumentationCurses::UI::Common(3)
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NAME

6       Curses::UI::Common - Common methods for Curses::UI
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CLASS HIERARCHY

9        Curses::UI::Common - base class
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SYNOPSIS

12           package MyPackage;
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14           use Curses::UI::Common;
15           use vars qw(@ISA);
16           @ISA = qw(Curses::UI::Common);
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DESCRIPTION

19       Curses::UI::Common is a collection of methods that is shared between
20       Curses::UI classes.
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METHODS

23   Various methods
24       ·   parent ( )
25
26           Returns the data member $this->{-parent}.
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28       ·   root ( )
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30           Returns the topmost -parent (the Curses::UI instance).
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32       ·   delallwin ( )
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34           This method will walk through all the data members of the class
35           intance. Each data member that is a Curses::Window descendant will
36           be removed.
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38       ·   accessor ( NAME, [VALUE] )
39
40           If VALUE is set, the value for the data member $this->{NAME} will
41           be changed. The method will return the current value for data
42           member $this->{NAME}.
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44       ·   keys_to_lowercase ( HASHREF )
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46           All keys in the hash referred to by HASHREF will be converted to
47           lower case.
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49   Text processing
50       split_to_lines ( TEXT )
51           This method will split TEXT into a list of separate lines.  It
52           returns a reference to this list.
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54       scrlength ( LINE )
55           Returns the screenlength of the string LINE. The difference with
56           the perl function length() is that this method will expand TAB
57           characters. It is exported by this class and it may be called as a
58           stand-alone routine.
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60       text_dimension ( TEXT )
61           This method will return an array containing the width (the length
62           of the longest line) and the height (the number of lines) of the
63           TEXT.
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65       text_wrap ( LINE, LENGTH, WORDWRAP )
66       WORDWRAP ( )
67       NO_WORDWRAP ( )
68           This method will wrap a line of text (LINE) to a given length
69           (LENGTH). If the WORDWRAP argument is true, wordwrap will be
70           enabled (this is the default for WORDWRAP). It will return a
71           reference to a list of wrapped lines. It is exported by this class
72           and it may be called as a stand-alone routine.
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74           The WORDWRAP and NO_WORDWRAP routines will return the correct value
75           vor the WORDWRAP argument.  These routines are exported by this
76           class.
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78           Example:
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80               $this->text_wrap($line, 50, NO_WORDWRAP);
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82   Reading key input
83       CUI_ESCAPE ( )
84       CUI_TAB ( )
85       CUI_SPACE ( )
86           These are a couple of routines that are not defined by the Curses
87           module, but which might be useful anyway.  These routines are
88           exported by this class.
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90       get_key ( BLOCKTIME, CURSOR )
91           This method will try to read a key from the keyboard.  It will
92           return the key pressed or -1 if no key was pressed. It is exported
93           by this class and it may be called as a stand-alone routine.
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95           The BLOCKTIME argument can be used to set the curses halfdelay (the
96           time to wait before the routine decides that no key was pressed).
97           BLOCKTIME is given in tenths of seconds. The default is 0 (non-
98           blocking key read).
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100           Example:
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102               my $key = $this->get_key(5)
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SEE ALSO

105       Curses::UI
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AUTHOR

108       Copyright (c) 2001-2002 Maurice Makaay. All rights reserved.
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110       Maintained by Marcus Thiesen (marcus@cpan.thiesenweb.de)
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112       This package is free software and is provided "as is" without express
113       or implied warranty. It may be used, redistributed and/or modified
114       under the same terms as perl itself.
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118perl v5.30.0                      2019-07-26             Curses::UI::Common(3)