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Tickit-0.74
River stage two • 35 direct dependents • 41 total dependents
/ Tickit::Event

NAME

Tickit::Event - event information structures

DESCRIPTION

When event handlers bound to Tickit::Term or Tickit::Window instances are invoked they receive an object instance to contain information about the event. Details of the event can be accessed as via accessor methods on these instances.

ACCESSORS

The following methods are shared between Tickit::Event::Key and Tickit::Event::Mouse instances.

mod_is_alt

mod_is_ctrl

mod_is_shift

Convenient shortcuts to tests on the mod bitmask to test if each of the modifiers is set.

Tickit::Event::Expose

rb

The Tickit::RenderBuffer instance containing the buffer for this redraw cycle.

rect

A Tickit::Rect instance containing the region of the window that needs repainting.

Tickit::Event::Focus

type

This accessor has two forms of operation.

The new behaviour is that it returns a dualvar giving the focus event type as an integer or a string event name (in or out). This behaviour is selected if the method is invoked with any true value as an argument.

The legacy behaviour is that it returns a simple boolean giving the focus direction; 1 for in, 0 for out. This legacy behaviour will be removed in a later version.

win

The child Tickit::Window instance for child-focus notify events.

Tickit::Event::Key

type

A dualvar giving the key event type as an integer or string event name (text or key).

str

A string containing the key event string.

Printing keys besides Space (letters, numbers, symbols) are encoded as a single-character string. Numbered function keys are named F1, F2, etc... Other non-printing keys such as arrows, cursor control, and Space use a multi-character name taken from a list of known names, which includes:

Backspace  Tab  Enter  Escape  Space
Up  Down  Left  Right
Insert  Delete  PageUp  PageDown  Home  End

Modifiers are prefixed onto this string with a hyphen each; M- for Meta (or Alt), C- for Control and S- for Shift. Printing keys will never include a Shift modifier; non-printing keys might.

For example,

a
Space
C-b
C-Enter
M-S-Left
S-Backspace

mod

An integer bitmask indicating the modifier state.

Tickit::Event::Mouse

type

A dualvar giving the mouse event type as an integer or string event name (press, drag, release or wheel).

button

An integer for non-wheel events or a dualvar for wheel events giving the wheel direction (up or down).

line

col

Integers giving the mouse position.

mod

An integer bitmask indicating the modifier state.

Tickit::Event::Resize

lines

cols

Integers giving the new size.

AUTHOR

Paul Evans <leonerd@leonerd.org.uk>