Prima::KeySelector(3) | User Contributed Perl Documentation | Prima::KeySelector(3) |
NAME¶
Prima::KeySelector - key combination widget and routines
DESCRIPTION¶
The module provides a standard widget for selecting user-defined key combinations. The widget class allows import, export, and modification of key combinations. The module also provides a set of routines useful for the conversion of key combinations between various representations.
SYNOPSIS¶
my $ks = Prima::KeySelector-> create( ); $ks-> key( km::Alt | ord('X')); print Prima::KeySelector::describe( $ks-> key );
API¶
Properties¶
- key INTEGER
- Selects a key combination in integer format. The format is described in
"Hotkey" in Prima::Menu, and is a combination of the
"km::XXX" key modifiers and is either a
"kb::XXX" virtual key or a character
code value.
The property allows almost, but not all possible combinations of key constants. Only the "km::Ctrl", "km::Alt", and "km::Shift" modifiers are allowed.
Methods¶
All methods must be called without the object as a first parameter.
- describe KEY
- Accepts KEY in integer format and returns a string description of the key
combination in a human-readable format. Useful for supplying an
accelerator text to a menu.
print Prima::KeySelector::describe( km::Shift|km::Ctrl|km::F10); Ctrl+Shift+F10
- export KEY
- Accepts KEY in integer format and returns a string with a perl-evaluable
expression, which after the evaluation resolves to the original KEY value.
Useful for storing a key into text config files, where the value must be
both human-readable and easily passed to a program.
print Prima::KeySelector::export( km::Shift|km::Ctrl|km::F10); km::Shift|km::Ctrl|km::F10
- shortcut KEY
- Converts KEY from integer format to a string, acceptable by
"Prima::AbstractMenu" input methods.
print Prima::KeySelector::shortcut( km::Ctrl|ord('X')); ^X
- translate_codes KEY, [ USE_CTRL = 0 ]
- Converts KEY in integer format to three integers in the format accepted by the "KeyDown" in Prima::Widget event: code, key, and modifier. USE_CTRL is only relevant when the KEY first byte ( "KEY & 0xFF" ) is between 1 and 26, which means that the key is a combination of an alpha key with the control key. If USE_CTRL is 1, the code result is unaltered and is in range 1 - 26. Otherwise, the code result is converted to the character code ( 1 to ord('A'), 2 to ord('B'), etc ).
AUTHOR¶
Dmitry Karasik, <dmitry@karasik.eu.org>.
SEE ALSO¶
Prima, Prima::Widget, Prima::Menu.
2024-08-20 | perl v5.40.0 |