Curses::UI::Common(3) User Contributed Perl DocumentationCurses::UI::Common(3)NAMECurses::UI::Common - Common methods for Curses::UI
CLASS HIERARCHYCurses::UI::Common - base class
SYNOPSIS
package MyPackage;
use Curses::UI::Common;
use vars qw(@ISA);
@ISA = qw(Curses::UI::Common);
DESCRIPTIONCurses::UI::Common is a collection of methods that is shared between
Curses::UI classes.
METHODS
Various methods
· parent ( )
Returns the data member $this->{-parent}.
· root ( )
Returns the topmost -parent (the Curses::UI instance).
· delallwin ( )
This method will walk through all the data members of the class
intance. Each data member that is a Curses::Window descendant will
be removed.
· accessor ( NAME, [VALUE] )
If VALUE is set, the value for the data member $this->{NAME} will
be changed. The method will return the current value for data
member $this->{NAME}.
· keys_to_lowercase ( HASHREF )
All keys in the hash referred to by HASHREF will be converted to
lower case.
Text processing
split_to_lines ( TEXT )
This method will split TEXT into a list of separate lines. It
returns a reference to this list.
scrlength ( LINE )
Returns the screenlength of the string LINE. The difference with
the perl function length() is that this method will expand TAB
characters. It is exported by this class and it may be called as a
stand-alone routine.
text_dimension ( TEXT )
This method will return an array containing the width (the length
of the longest line) and the height (the number of lines) of the
TEXT.
text_wrap ( LINE, LENGTH, WORDWRAP )
WORDWRAP ( )
NO_WORDWRAP ( )
This method will wrap a line of text (LINE) to a given length
(LENGTH). If the WORDWRAP argument is true, wordwrap will be
enabled (this is the default for WORDWRAP). It will return a
reference to a list of wrapped lines. It is exported by this class
and it may be called as a stand-alone routine.
The WORDWRAP and NO_WORDWRAP routines will return the correct value
vor the WORDWRAP argument. These routines are exported by this
class.
Example:
$this->text_wrap($line, 50, NO_WORDWRAP);
Reading key input
CUI_ESCAPE ( )
CUI_TAB ( )
CUI_SPACE ( )
These are a couple of routines that are not defined by the Curses
module, but which might be useful anyway. These routines are
exported by this class.
get_key ( BLOCKTIME, CURSOR )
This method will try to read a key from the keyboard. It will
return the key pressed or -1 if no key was pressed. It is exported
by this class and it may be called as a stand-alone routine.
The BLOCKTIME argument can be used to set the curses halfdelay (the
time to wait before the routine decides that no key was pressed).
BLOCKTIME is given in tenths of seconds. The default is 0 (non-
blocking key read).
Example:
my $key = $this->get_key(5)SEE ALSO
Curses::UI
AUTHOR
Copyright (c) 2001-2002 Maurice Makaay. All rights reserved.
Maintained by Marcus Thiesen (marcus@cpan.thiesenweb.de)
This package is free software and is provided "as is" without express
or implied warranty. It may be used, redistributed and/or modified
under the same terms as perl itself.
perl v5.16.3 2014-02-10 Curses::UI::Common(3)