gparamspecs.c

嵌入式下基于MiniGUI的Web Browser

/* GObject - GLib Type, Object, Parameter and Signal Library
 * Copyright (C) 1997-1999, 2000-2001 Tim Janik and Red Hat, Inc.
 *
 * 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.
 */

/*
 * MT safe
 */

#include	"glibconfig.h"

#include	"gparamspecs.h"

#include	"gvaluecollector.h"
#include	"gvaluearray.h"
#include	<string.h>

#define	G_FLOAT_EPSILON		(1e-30)
#define	G_DOUBLE_EPSILON	(1e-90)


/* --- param spec functions --- */
static void
param_char_init (GParamSpec *pspec)
{
  GParamSpecChar *cspec = G_PARAM_SPEC_CHAR (pspec);
  
  cspec->minimum = 0x7f;
  cspec->maximum = 0x80;
  cspec->default_value = 0;
}

static void
param_char_set_default (GParamSpec *pspec,
			GValue	   *value)
{
  value->data[0].v_int = G_PARAM_SPEC_CHAR (pspec)->default_value;
}

static gboolean
param_char_validate (GParamSpec *pspec,
		     GValue     *value)
{
  GParamSpecChar *cspec = G_PARAM_SPEC_CHAR (pspec);
  gint oval = value->data[0].v_int;
  
  value->data[0].v_int = CLAMP (value->data[0].v_int, cspec->minimum, cspec->maximum);
  
  return value->data[0].v_int != oval;
}

static void
param_uchar_init (GParamSpec *pspec)
{
  GParamSpecUChar *uspec = G_PARAM_SPEC_UCHAR (pspec);
  
  uspec->minimum = 0;
  uspec->maximum = 0xff;
  uspec->default_value = 0;
}

static void
param_uchar_set_default (GParamSpec *pspec,
			 GValue	    *value)
{
  value->data[0].v_uint = G_PARAM_SPEC_UCHAR (pspec)->default_value;
}

static gboolean
param_uchar_validate (GParamSpec *pspec,
		      GValue     *value)
{
  GParamSpecUChar *uspec = G_PARAM_SPEC_UCHAR (pspec);
  guint oval = value->data[0].v_uint;
  
  value->data[0].v_uint = CLAMP (value->data[0].v_uint, uspec->minimum, uspec->maximum);
  
  return value->data[0].v_uint != oval;
}

static void
param_boolean_set_default (GParamSpec *pspec,
			   GValue     *value)
{
  value->data[0].v_int = G_PARAM_SPEC_BOOLEAN (pspec)->default_value;
}

static gboolean
param_boolean_validate (GParamSpec *pspec,
			GValue     *value)
{
  gint oval = value->data[0].v_int;
  
  value->data[0].v_int = value->data[0].v_int != FALSE;
  
  return value->data[0].v_int != oval;
}

static void
param_int_init (GParamSpec *pspec)
{
  GParamSpecInt *ispec = G_PARAM_SPEC_INT (pspec);
  
  ispec->minimum = 0x7fffffff;
  ispec->maximum = 0x80000000;
  ispec->default_value = 0;
}

static void
param_int_set_default (GParamSpec *pspec,
		       GValue     *value)
{
  value->data[0].v_int = G_PARAM_SPEC_INT (pspec)->default_value;
}

static gboolean
param_int_validate (GParamSpec *pspec,
		    GValue     *value)
{
  GParamSpecInt *ispec = G_PARAM_SPEC_INT (pspec);
  gint oval = value->data[0].v_int;
  
  value->data[0].v_int = CLAMP (value->data[0].v_int, ispec->minimum, ispec->maximum);
  
  return value->data[0].v_int != oval;
}

static gint
param_int_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;
}

static void
param_uint_init (GParamSpec *pspec)
{
  GParamSpecUInt *uspec = G_PARAM_SPEC_UINT (pspec);
  
  uspec->minimum = 0;
  uspec->maximum = 0xffffffff;
  uspec->default_value = 0;
}

static void
param_uint_set_default (GParamSpec *pspec,
			GValue     *value)
{
  value->data[0].v_uint = G_PARAM_SPEC_UINT (pspec)->default_value;
}

static gboolean
param_uint_validate (GParamSpec *pspec,
		     GValue     *value)
{
  GParamSpecUInt *uspec = G_PARAM_SPEC_UINT (pspec);
  guint oval = value->data[0].v_uint;
  
  value->data[0].v_uint = CLAMP (value->data[0].v_uint, uspec->minimum, uspec->maximum);
  
  return value->data[0].v_uint != oval;
}

static gint
param_uint_values_cmp (GParamSpec   *pspec,
		       const GValue *value1,
		       const GValue *value2)
{
  if (value1->data[0].v_uint < value2->data[0].v_uint)
    return -1;
  else
    return value1->data[0].v_uint > value2->data[0].v_uint;
}

static void
param_long_init (GParamSpec *pspec)
{
  GParamSpecLong *lspec = G_PARAM_SPEC_LONG (pspec);
  
#if SIZEOF_LONG == 4
  lspec->minimum = 0x7fffffff;
  lspec->maximum = 0x80000000;
#else /* SIZEOF_LONG != 4 (8) */
  lspec->minimum = 0x7fffffffffffffff;
  lspec->maximum = 0x8000000000000000;
#endif
  lspec->default_value = 0;
}

static void
param_long_set_default (GParamSpec *pspec,
			GValue     *value)
{
  value->data[0].v_long = G_PARAM_SPEC_LONG (pspec)->default_value;
}

static gboolean
param_long_validate (GParamSpec *pspec,
		     GValue     *value)
{
  GParamSpecLong *lspec = G_PARAM_SPEC_LONG (pspec);
  glong oval = value->data[0].v_long;
  
  value->data[0].v_long = CLAMP (value->data[0].v_long, lspec->minimum, lspec->maximum);
  
  return value->data[0].v_long != oval;
}

static gint
param_long_values_cmp (GParamSpec   *pspec,
		       const GValue *value1,
		       const GValue *value2)
{
  if (value1->data[0].v_long < value2->data[0].v_long)
    return -1;
  else
    return value1->data[0].v_long > value2->data[0].v_long;
}

static void
param_ulong_init (GParamSpec *pspec)
{
  GParamSpecULong *uspec = G_PARAM_SPEC_ULONG (pspec);
  
  uspec->minimum = 0;
#if SIZEOF_LONG == 4
  uspec->maximum = 0xffffffff;
#else /* SIZEOF_LONG != 4 (8) */
  uspec->maximum = 0xffffffffffffffff;
#endif
  uspec->default_value = 0;
}

static void
param_ulong_set_default (GParamSpec *pspec,
			 GValue     *value)
{
  value->data[0].v_ulong = G_PARAM_SPEC_ULONG (pspec)->default_value;
}

static gboolean
param_ulong_validate (GParamSpec *pspec,
		      GValue     *value)
{
  GParamSpecULong *uspec = G_PARAM_SPEC_ULONG (pspec);
  gulong oval = value->data[0].v_ulong;
  
  value->data[0].v_ulong = CLAMP (value->data[0].v_ulong, uspec->minimum, uspec->maximum);
  
  return value->data[0].v_ulong != oval;
}

static gint
param_ulong_values_cmp (GParamSpec   *pspec,
			const GValue *value1,
			const GValue *value2)
{
  if (value1->data[0].v_ulong < value2->data[0].v_ulong)
    return -1;
  else
    return value1->data[0].v_ulong > value2->data[0].v_ulong;
}

static void
param_int64_init (GParamSpec *pspec)
{
  GParamSpecInt64 *lspec = G_PARAM_SPEC_INT64 (pspec);
  
  lspec->minimum = G_MININT64;
  lspec->maximum = G_MAXINT64;
  lspec->default_value = 0;
}

static void
param_int64_set_default (GParamSpec *pspec,
			GValue     *value)
{
  value->data[0].v_int64 = G_PARAM_SPEC_INT64 (pspec)->default_value;
}

static gboolean
param_int64_validate (GParamSpec *pspec,
		     GValue     *value)
{
  GParamSpecInt64 *lspec = G_PARAM_SPEC_INT64 (pspec);
  gint64 oval = value->data[0].v_int64;
  
  value->data[0].v_int64 = CLAMP (value->data[0].v_int64, lspec->minimum, lspec->maximum);
  
  return value->data[0].v_int64 != oval;
}

static gint
param_int64_values_cmp (GParamSpec   *pspec,
		       const GValue *value1,
		       const GValue *value2)
{
  if (value1->data[0].v_int64 < value2->data[0].v_int64)
    return -1;
  else
    return value1->data[0].v_int64 > value2->data[0].v_int64;
}

static void
param_uint64_init (GParamSpec *pspec)
{
  GParamSpecUInt64 *uspec = G_PARAM_SPEC_UINT64 (pspec);
  
  uspec->minimum = 0;
  uspec->maximum = G_MAXUINT64;
  uspec->default_value = 0;
}

static void
param_uint64_set_default (GParamSpec *pspec,
			 GValue     *value)
{
  value->data[0].v_uint64 = G_PARAM_SPEC_UINT64 (pspec)->default_value;
}

static gboolean
param_uint64_validate (GParamSpec *pspec,
		      GValue     *value)
{
  GParamSpecUInt64 *uspec = G_PARAM_SPEC_UINT64 (pspec);
  guint64 oval = value->data[0].v_uint64;
  
  value->data[0].v_uint64 = CLAMP (value->data[0].v_uint64, uspec->minimum, uspec->maximum);
  
  return value->data[0].v_uint64 != oval;
}

static gint
param_uint64_values_cmp (GParamSpec   *pspec,
			const GValue *value1,
			const GValue *value2)
{
  if (value1->data[0].v_uint64 < value2->data[0].v_uint64)
    return -1;
  else
    return value1->data[0].v_uint64 > value2->data[0].v_uint64;
}

static void
param_unichar_init (GParamSpec *pspec)
{
  GParamSpecUnichar *uspec = G_PARAM_SPEC_UNICHAR (pspec);
  
  uspec->default_value = 0;
}

static void
param_unichar_set_default (GParamSpec *pspec,
			 GValue     *value)
{
  value->data[0].v_uint = G_PARAM_SPEC_UNICHAR (pspec)->default_value;
}

static gboolean
param_unichar_validate (GParamSpec *pspec,
		        GValue     *value)
{
  gunichar oval = value->data[0].v_uint;
  gboolean changed = FALSE;

  if (!g_unichar_validate (oval))
    {
      value->data[0].v_uint = 0;
      changed = TRUE;
    }

  return changed;
}

static gint
param_unichar_values_cmp (GParamSpec   *pspec,
			const GValue *value1,
			const GValue *value2)
{
  if (value1->data[0].v_uint < value2->data[0].v_uint)
    return -1;
  else
    return value1->data[0].v_uint > value2->data[0].v_uint;
}

static void
param_enum_init (GParamSpec *pspec)
{
  GParamSpecEnum *espec = G_PARAM_SPEC_ENUM (pspec);
  
  espec->enum_class = NULL;
  espec->default_value = 0;
}

static void
param_enum_finalize (GParamSpec *pspec)
{
  GParamSpecEnum *espec = G_PARAM_SPEC_ENUM (pspec);
  GParamSpecClass *parent_class = g_type_class_peek (g_type_parent (G_TYPE_PARAM_ENUM));
  
  if (espec->enum_class)
    {
      g_type_class_unref (espec->enum_class);
      espec->enum_class = NULL;
    }
  
  parent_class->finalize (pspec);
}

static void
param_enum_set_default (GParamSpec *pspec,
			GValue     *value)
{
  value->data[0].v_long = G_PARAM_SPEC_ENUM (pspec)->default_value;
}

static gboolean
param_enum_validate (GParamSpec *pspec,
		     GValue     *value)
{
  GParamSpecEnum *espec = G_PARAM_SPEC_ENUM (pspec);
  glong oval = value->data[0].v_long;
  
  if (!espec->enum_class ||
      !g_enum_get_value (espec->enum_class, value->data[0].v_long))
    value->data[0].v_long = espec->default_value;
  
  return value->data[0].v_long != oval;
}

static void
param_flags_init (GParamSpec *pspec)
{
  GParamSpecFlags *fspec = G_PARAM_SPEC_FLAGS (pspec);
  
  fspec->flags_class = NULL;
  fspec->default_value = 0;
}

static void
param_flags_finalize (GParamSpec *pspec)