Clutter::Units.3pm

Langue: en

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Version: 2008-07-23 (debian - 07/07/09)

Section: 3 (Bibliothèques de fonctions)

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NAME

Clutter::Units

DESCRIPTION

Clutter uses device independent units, internally, to provide sub-pixel positioning and sizing. While the public API does not always expose this for convenience of the developer, when writing new Clutter::Actor classes you will be exposed to this kind of units.

The following package methods are useful for converting device dependent units, like pixels and percentages, into device independent units and vice versa.

METHODS


units = Clutter::Units->FROM_DEVICE ($value)

•
$value (integer)

Converts pixels into device independent units

units = Clutter::Units->FROM_FLOAT ($value)

•
$value (double)

Converts a floating point value, like a percentage, into a device independent unit

units = Clutter::Units->FROM_INT ($value)

•
$value (integer)

Converts an integer value, like pixels, into a device independent unit.

units = Clutter::Units->FROM_MM ($millimeters)

•
$millimeters (integer)

Converts millimeters into device independent units

units = Clutter::Units->FROM_PANGO_UNIT ($value)

•
$value (integer)

Converts Pango units into device independent units

units = Clutter::Units->FROM_PARENT_HEIGHT_PERCENTAGE ($actor, $percent)


units = Clutter::Units->FROM_PARENT_HEIGHT_PERCENTAGE ($actor, $percent)

•
$actor (Clutter::Actor)
•
$percent (integer)

Converts a percentage of an actor's parent widget height into device independed units

units = Clutter::Units->FROM_PARENT_WIDTH_PERCENTAGE ($actor, $percent)


units = Clutter::Units->FROM_PARENT_WIDTH_PERCENTAGE ($actor, $percent)

•
$actor (Clutter::Actor)
•
$percent (integer)

Converts a percentage of an actor's parent widget width into device independed units

units = Clutter::Units->FROM_POINTS ($points)

•
$points (integer)

Converts font points into device independent units

units = Clutter::Units->FROM_STAGE_HEIGHT_PERCENTAGE ($percent)

•
$percent (integer)

Converts a percentage of the default stage's height into device independed units

units = Clutter::Units->FROM_STAGE_WIDTH_PERCENTAGE ($percent)

•
$percent (integer)

Converts a percentage of the default stage's width into device independed units

units = Clutter::Units->MAX_UNIT

Maximum value for units

units = Clutter::Units->MIN_UNIT

Minimum value for units

integer = Clutter::Units->TO_DEVICE ($units)

•
$units (integer) High precision units

Converts device independent units into pixels

double = Clutter::Units->TO_FLOAT ($units)

•
$units (integer) High precision units

Converts a device independent unit into a floating point value, like a percentage

integer = Clutter::Units->TO_INT ($units)

•
$units (integer) High precision units

Converts a device independent unit into an integer value, like pixels.

integer = Clutter::Units->TO_PANGO_UNIT ($units)

•
$units (units)

Converts device independent units into Pango units

SEE ALSO

Clutter Copyright (C) 2006 OpenedHand Ltd.

This module is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public Library version 2.1, or under the terms of the Artistic License. See Clutter for the full copyright notice.