f04a0a4645
* clutter/clutter-actor.c (parse_units), (clutter_actor_parse_custom_node), (clutter_scriptable_iface_init): Override the parsing code for the x, y, width and height properties of ClutterActor, to allow strings with modifiers when defining the position and/or the dimensions of an actor. Bare integers are assumed as pixels; floating point values in the [0, 1] interval are assumed as percentages; strings can have these modifiers: - px - pixels - mm - millimeters - pt - points (at the current resolution) - % - percentage of the stage * clutter/clutter-units.h: Fix the conversion macros * tests/test-script.json: Test the new values.
115 lines
4.1 KiB
C
115 lines
4.1 KiB
C
/* -*- mode:C; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
|
|
/*
|
|
* Clutter.
|
|
*
|
|
* An OpenGL based 'interactive canvas' library.
|
|
*
|
|
* Authored By Tomas Frydrych <tf@openedhand.com>
|
|
*
|
|
* Copyright (C) 2007 OpenedHand
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
/**
|
|
* SECTION:clutter-units
|
|
* @short_description: A logical distance unit.
|
|
*
|
|
* Clutter units are logical units with granularity greater than that of the
|
|
* device units; they are used by #ClutterActorBox and the _units() family of
|
|
* ClutterActor functions. To convert between clutter units and device units,
|
|
* use #CLUTTER_UNITS_FROM_DEVICE and #CLUTTER_UNITS_TO_DEVICE macros.
|
|
*
|
|
* Note: It is expected that as of version 0.6 all dimensions in the public
|
|
* Clutter API will be given in clutter units. In order to ease the transition,
|
|
* two extra macros have been provided, #CLUTTER_UNITS_TMP_TO_DEVICE and
|
|
* #CLUTTER_UNITS_TMP_FROM_DEVICE. In version 0.4 these are identity macros,
|
|
* but when the API transition happens will map to #CLUTTER_UNITS_TO_DEVICE and
|
|
* #CLUTTER_UNITS_FROM_DEVICE respectively. You can use these in newly written
|
|
* code as place holders.
|
|
*
|
|
* Since: 0.4
|
|
*/
|
|
|
|
#ifndef _HAVE_CLUTTER_UNITS_H
|
|
#define _HAVE_CLUTTER_UNITS_H
|
|
|
|
#include <clutter/clutter-fixed.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/**
|
|
* ClutterUnit:
|
|
*
|
|
* Device independent unit used by Clutter. The value held can be transformed
|
|
* into other units, likes pixels.
|
|
*
|
|
* Since: 0.4
|
|
*/
|
|
typedef gint32 ClutterUnit;
|
|
|
|
/*
|
|
* Currently CLUTTER_UNIT maps directly onto ClutterFixed. Nevertheless, the
|
|
* _FROM_FIXED and _TO_FIXED macros should always be used in case that we
|
|
* decide to change this relationship in the future.
|
|
*/
|
|
|
|
#define CLUTTER_UNITS_FROM_DEVICE(x) CLUTTER_UNITS_FROM_INT (x)
|
|
#define CLUTTER_UNITS_TO_DEVICE(x) CLUTTER_UNITS_TO_INT (x)
|
|
|
|
#define CLUTTER_UNITS_TMP_FROM_DEVICE(x) (x)
|
|
#define CLUTTER_UNITS_TMP_TO_DEVICE(x) (x)
|
|
|
|
#define CLUTTER_UNITS_FROM_INT(x) CLUTTER_INT_TO_FIXED (x)
|
|
#define CLUTTER_UNITS_TO_INT(x) CFX_INT (x)
|
|
|
|
#define CLUTTER_UNITS_FROM_FLOAT(x) CLUTTER_FLOAT_TO_FIXED (x)
|
|
#define CLUTTER_UNITS_TO_FLOAT(x) CLUTTER_FIXED_TO_FLOAT (x)
|
|
|
|
#define CLUTTER_UNITS_FROM_FIXED(x) (x)
|
|
#define CLUTTER_UNITS_TO_FIXED(x) (x)
|
|
|
|
#define CLUTTER_UNITS_FROM_PANGO_UNIT(x) ((x) << 6)
|
|
#define CLUTTER_UNITS_TO_PANGO_UNIT(x) ((x) >> 6)
|
|
|
|
#define CLUTTER_UNITS_FROM_STAGE_WIDTH_PERCENTAGE(x) \
|
|
((clutter_actor_get_widthu (clutter_stage_get_default ()) * x) / 100)
|
|
|
|
#define CLUTTER_UNITS_FROM_STAGE_HEIGHT_PERCENTAGE(x) \
|
|
((clutter_actor_get_heightu (clutter_stage_get_default ()) * x) / 100)
|
|
|
|
#define CLUTTER_UNITS_FROM_PARENT_WIDTH_PERCENTAGE(a, x) \
|
|
((clutter_actor_get_widthu (clutter_actor_get_parent (a)) * x) / 100)
|
|
|
|
#define CLUTTER_UNITS_FROM_PARENT_HEIGHT_PERCENTAGE(a, x) \
|
|
((clutter_actor_get_heightu (clutter_actor_get_parent (a)) * x) / 100)
|
|
|
|
#define CLUTTER_UNITS_FROM_MM(x) \
|
|
(CLUTTER_UNITS_FROM_FLOAT ((((x) * clutter_stage_get_resolution ((ClutterStage *) clutter_stage_get_default ())) / 25.4)))
|
|
|
|
#define CLUTTER_UNITS_FROM_MMX(x) \
|
|
(CFX_DIV (CFX_MUL ((x), clutter_stage_get_resolutionx ((ClutterStage *) clutter_stage_get_default ())), 0x196666))
|
|
|
|
#define CLUTTER_UNITS_FROM_POINTS(x) \
|
|
CLUTTER_UNITS_FROM_FLOAT ((((x) * clutter_stage_get_resolution ((ClutterStage *) clutter_stage_get_default ())) / 72.0))
|
|
|
|
#define CLUTTER_UNITS_FROM_POINTSX(x) \
|
|
(CFX_MUL ((x), clutter_stage_get_resolutionx ((ClutterStage *) clutter_stage_get_default ())) / 72)
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* _HAVE_CLUTTER_UNITS_H */
|