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/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Authored By Tomas Frydrych <tf@openedhand.com>
*
* Copyright (C) 2006, 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, see <http://www.gnu.org/licenses/>.
*
*
*/
#define G_IMPLEMENT_INLINES
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#define CLUTTER_DISABLE_DEPRECATION_WARNINGS
/* This file depends on the cogl-fixed api which isn't exposed when
* COGL_ENABLE_EXPERIMENTAL_2_0_API is defined...
*/
#undef COGL_ENABLE_EXPERIMENTAL_2_0_API
#include <cogl/cogl.h>
#include <glib-object.h>
#include "clutter-fixed.h"
#include "clutter-private.h"
/**
* clutter_value_set_fixed: (skip)
* @value: a #GValue initialized to %COGL_TYPE_FIXED
* @fixed_: the fixed point value to set
*
* Sets @value to @fixed_.
*
* Since: 0.8
*
* Deprecated: 1.10: Use g_value_set_int() instead.
*/
void
clutter_value_set_fixed (GValue *value,
CoglFixed fixed_)
{
g_return_if_fail (CLUTTER_VALUE_HOLDS_FIXED (value));
value->data[0].v_int = fixed_;
}
/**
* clutter_value_get_fixed: (skip)
* @value: a #GValue initialized to %COGL_TYPE_FIXED
*
* Gets the fixed point value stored inside @value.
*
* Return value: the value inside the passed #GValue
*
* Since: 0.8
*
* Deprecated: 1.10: Use g_value_get_int() instead.
*/
CoglFixed
clutter_value_get_fixed (const GValue *value)
{
g_return_val_if_fail (CLUTTER_VALUE_HOLDS_FIXED (value), 0);
return value->data[0].v_int;
}
static void
param_fixed_init (GParamSpec *pspec)
{
ClutterParamSpecFixed *fspec = CLUTTER_PARAM_SPEC_FIXED (pspec);
fspec->minimum = COGL_FIXED_MIN;
fspec->maximum = COGL_FIXED_MAX;
fspec->default_value = 0;
}
static void
param_fixed_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_int = CLUTTER_PARAM_SPEC_FIXED (pspec)->default_value;
}
static gboolean
param_fixed_validate (GParamSpec *pspec,
GValue *value)
{
ClutterParamSpecFixed *fspec = CLUTTER_PARAM_SPEC_FIXED (pspec);
gint oval = value->data[0].v_int;
gint min, max, val;
g_assert (CLUTTER_IS_PARAM_SPEC_FIXED (pspec));
/* we compare the integer part of the value because the minimum
* and maximum values cover just that part of the representation
*/
min = fspec->minimum;
max = fspec->maximum;
val = (value->data[0].v_int);
val = CLAMP (val, min, max);
if (val != oval)
{
value->data[0].v_int = val;
return TRUE;
}
return FALSE;
}
static gint
param_fixed_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
if (value1->data[0].v_int < value2->data[0].v_int)
return -1;
else
return value1->data[0].v_int > value2->data[0].v_int;
}
GType
clutter_param_fixed_get_type (void)
{
static GType pspec_type = 0;
if (G_UNLIKELY (pspec_type == 0))
{
const GParamSpecTypeInfo pspec_info = {
sizeof (ClutterParamSpecFixed),
16,
param_fixed_init,
COGL_TYPE_FIXED,
NULL,
param_fixed_set_default,
param_fixed_validate,
param_fixed_values_cmp,
};
pspec_type = g_param_type_register_static (I_("ClutterParamSpecFixed"),
&pspec_info);
}
return pspec_type;
}
/**
* clutter_param_spec_fixed: (skip)
* @name: name of the property
* @nick: short name
* @blurb: description (can be translatable)
* @minimum: lower boundary
* @maximum: higher boundary
* @default_value: default value
* @flags: flags for the param spec
*
* Creates a #GParamSpec for properties using #CoglFixed values
*
* Return value: (transfer full): the newly created #GParamSpec
*
* Since: 0.8
*
* Deprecated: 1.10: Use #GParamSpecInt instead.
*/
GParamSpec *
clutter_param_spec_fixed (const gchar *name,
const gchar *nick,
const gchar *blurb,
CoglFixed minimum,
CoglFixed maximum,
CoglFixed default_value,
GParamFlags flags)
{
ClutterParamSpecFixed *fspec;
g_return_val_if_fail (default_value >= minimum && default_value <= maximum,
NULL);
fspec = g_param_spec_internal (CLUTTER_TYPE_PARAM_FIXED,
name, nick, blurb,
flags);
fspec->minimum = minimum;
fspec->maximum = maximum;
fspec->default_value = default_value;
return G_PARAM_SPEC (fspec);
}
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