gvaluetypes.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	"gvaluetypes.h"

#include	"gvaluecollector.h"
#include	<string.h>
#include	<stdlib.h>	/* qsort() */


/* --- value functions --- */
static void
value_init_long0 (GValue *value)
{
  value->data[0].v_long = 0;
}

static void
value_copy_long0 (const GValue *src_value,
		  GValue       *dest_value)
{
  dest_value->data[0].v_long = src_value->data[0].v_long;
}

static gchar*
value_lcopy_char (const GValue *value,
		  guint         n_collect_values,
		  GTypeCValue  *collect_values,
		  guint         collect_flags)
{
  gint8 *int8_p = collect_values[0].v_pointer;
  
  if (!int8_p)
    return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
  
  *int8_p = value->data[0].v_int;
  
  return NULL;
}

static gchar*
value_lcopy_boolean (const GValue *value,
		     guint         n_collect_values,
		     GTypeCValue  *collect_values,
		     guint         collect_flags)
{
  gboolean *bool_p = collect_values[0].v_pointer;
  
  if (!bool_p)
    return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
  
  *bool_p = value->data[0].v_int;
  
  return NULL;
}

static gchar*
value_collect_int (GValue      *value,
		   guint        n_collect_values,
		   GTypeCValue *collect_values,
		   guint        collect_flags)
{
  value->data[0].v_int = collect_values[0].v_int;
  
  return NULL;
}

static gchar*
value_lcopy_int (const GValue *value,
		 guint         n_collect_values,
		 GTypeCValue  *collect_values,
		 guint         collect_flags)
{
  gint *int_p = collect_values[0].v_pointer;
  
  if (!int_p)
    return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
  
  *int_p = value->data[0].v_int;
  
  return NULL;
}

static gchar*
value_collect_long (GValue      *value,
		    guint        n_collect_values,
		    GTypeCValue *collect_values,
		    guint        collect_flags)
{
  value->data[0].v_long = collect_values[0].v_long;
  
  return NULL;
}

static gchar*
value_lcopy_long (const GValue *value,
		  guint         n_collect_values,
		  GTypeCValue  *collect_values,
		  guint         collect_flags)
{
  glong *long_p = collect_values[0].v_pointer;
  
  if (!long_p)
    return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
  
  *long_p = value->data[0].v_long;
  
  return NULL;
}

static void
value_init_int64 (GValue *value)
{
  value->data[0].v_int64 = 0;
}

static void
value_copy_int64 (const GValue *src_value,
		  GValue       *dest_value)
{
  dest_value->data[0].v_int64 = src_value->data[0].v_int64;
}

static gchar*
value_collect_int64 (GValue      *value,
		     guint        n_collect_values,
		     GTypeCValue *collect_values,
		     guint        collect_flags)
{
  value->data[0].v_int64 = collect_values[0].v_int64;
  
  return NULL;
}

static gchar*
value_lcopy_int64 (const GValue *value,
		   guint         n_collect_values,
		   GTypeCValue  *collect_values,
		   guint         collect_flags)
{
  gint64 *int64_p = collect_values[0].v_pointer;
  
  if (!int64_p)
    return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
  
  *int64_p = value->data[0].v_int64;
  
  return NULL;
}

static void
value_init_float (GValue *value)
{
  value->data[0].v_float = 0.0;
}

static void
value_copy_float (const GValue *src_value,
		  GValue       *dest_value)
{
  dest_value->data[0].v_float = src_value->data[0].v_float;
}

static gchar*
value_collect_float (GValue      *value,
		     guint        n_collect_values,
		     GTypeCValue *collect_values,
		     guint        collect_flags)
{
  value->data[0].v_float = collect_values[0].v_double;
  
  return NULL;
}

static gchar*
value_lcopy_float (const GValue *value,
		   guint         n_collect_values,
		   GTypeCValue  *collect_values,
		   guint         collect_flags)
{
  gfloat *float_p = collect_values[0].v_pointer;
  
  if (!float_p)
    return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
  
  *float_p = value->data[0].v_float;
  
  return NULL;
}

static void
value_init_double (GValue *value)
{
  value->data[0].v_double = 0.0;
}

static void
value_copy_double (const GValue *src_value,
		   GValue	*dest_value)
{
  dest_value->data[0].v_double = src_value->data[0].v_double;
}

static gchar*
value_collect_double (GValue	  *value,
		      guint        n_collect_values,
		      GTypeCValue *collect_values,
		      guint        collect_flags)
{
  value->data[0].v_double = collect_values[0].v_double;
  
  return NULL;
}

static gchar*
value_lcopy_double (const GValue *value,
		    guint         n_collect_values,
		    GTypeCValue  *collect_values,
		    guint         collect_flags)
{
  gdouble *double_p = collect_values[0].v_pointer;
  
  if (!double_p)
    return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
  
  *double_p = value->data[0].v_double;
  
  return NULL;
}

static void
value_init_string (GValue *value)
{
  value->data[0].v_pointer = NULL;
}

static void
value_free_string (GValue *value)
{
  if (!(value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS))
    g_free (value->data[0].v_pointer);
}

static void
value_copy_string (const GValue *src_value,
		   GValue	*dest_value)
{
  dest_value->data[0].v_pointer = g_strdup (src_value->data[0].v_pointer);
}

static gchar*
value_collect_string (GValue	  *value,
		      guint        n_collect_values,
		      GTypeCValue *collect_values,
		      guint        collect_flags)
{
  if (!collect_values[0].v_pointer)
    value->data[0].v_pointer = NULL;
  else if (collect_flags & G_VALUE_NOCOPY_CONTENTS)
    {
      value->data[0].v_pointer = collect_values[0].v_pointer;
      value->data[1].v_uint = G_VALUE_NOCOPY_CONTENTS;
    }
  else
    value->data[0].v_pointer = g_strdup (collect_values[0].v_pointer);
  
  return NULL;
}

static gchar*
value_lcopy_string (const GValue *value,
		    guint         n_collect_values,
		    GTypeCValue  *collect_values,
		    guint         collect_flags)
{
  gchar **string_p = collect_values[0].v_pointer;
  
  if (!string_p)
    return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
  
  if (!value->data[0].v_pointer)
    *string_p = NULL;
  else if (collect_flags & G_VALUE_NOCOPY_CONTENTS)
    *string_p = value->data[0].v_pointer;
  else
    *string_p = g_strdup (value->data[0].v_pointer);
  
  return NULL;
}

static void
value_init_pointer (GValue *value)
{
  value->data[0].v_pointer = NULL;
}

static void
value_copy_pointer (const GValue *src_value,
		    GValue       *dest_value)
{
  dest_value->data[0].v_pointer = src_value->data[0].v_pointer;
}

static gpointer
value_peek_pointer0 (const GValue *value)
{
  return value->data[0].v_pointer;
}

static gchar*
value_collect_pointer (GValue      *value,
		       guint        n_collect_values,
		       GTypeCValue *collect_values,
		       guint        collect_flags)
{
  value->data[0].v_pointer = collect_values[0].v_pointer;

  return NULL;
}

static gchar*
value_lcopy_pointer (const GValue *value,
		     guint         n_collect_values,
		     GTypeCValue  *collect_values,
		     guint         collect_flags)
{
  gpointer *pointer_p = collect_values[0].v_pointer;

  if (!pointer_p)
    return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));

  *pointer_p = value->data[0].v_pointer;

  return NULL;
}


/* --- type initialization --- */
void
g_value_types_init (void)  /* sync with gtype.c */
{
  GTypeInfo info = {
    0,				/* class_size */
    NULL,			/* base_init */
    NULL,			/* base_destroy */
    NULL,			/* class_init */
    NULL,			/* class_destroy */
    NULL,			/* class_data */
    0,				/* instance_size */
    0,				/* n_preallocs */
    NULL,			/* instance_init */
    NULL,			/* value_table */
  };
  const GTypeFundamentalInfo finfo = { G_TYPE_FLAG_DERIVABLE, };
  GType type;
  
  /* G_TYPE_CHAR / G_TYPE_UCHAR
   */
  {
    static const GTypeValueTable value_table = {
      value_init_long0,		/* value_init */
      NULL,			/* value_free */
      value_copy_long0,		/* value_copy */
      NULL,			/* value_peek_pointer */
      "i",			/* collect_format */
      value_collect_int,	/* collect_value */
      "p",			/* lcopy_format */
      value_lcopy_char,		/* lcopy_value */
    };
    info.value_table = &value_table;
    type = g_type_register_fundamental (G_TYPE_CHAR, "gchar", &info, &finfo, 0);
    g_assert (type == G_TYPE_CHAR);
    type = g_type_register_fundamental (G_TYPE_UCHAR, "guchar", &info, &finfo, 0);
    g_assert (type == G_TYPE_UCHAR);
  }

  /* G_TYPE_BOOLEAN
   */
  {
    static const GTypeValueTable value_table = {
      value_init_long0,		 /* value_init */
      NULL,			 /* value_free */
      value_copy_long0,		 /* value_copy */
      NULL,                      /* value_peek_pointer */
      "i",			 /* collect_format */
      value_collect_int,	 /* collect_value */
      "p",			 /* lcopy_format */
      value_lcopy_boolean,	 /* lcopy_value */
    };
    info.value_table = &value_table;
    type = g_type_register_fundamental (G_TYPE_BOOLEAN, "gboolean", &info, &finfo, 0);
    g_assert (type == G_TYPE_BOOLEAN);
  }
  
  /* G_TYPE_INT / G_TYPE_UINT
   */
  {
    static const GTypeValueTable value_table = {
      value_init_long0,		/* value_init */
      NULL,			/* value_free */
      value_copy_long0,		/* value_copy */
      NULL,                     /* value_peek_pointer */
      "i",			/* collect_format */
      value_collect_int,	/* collect_value */
      "p",			/* lcopy_format */
      value_lcopy_int,		/* lcopy_value */
    };
    info.value_table = &value_table;
    type = g_type_register_fundamental (G_TYPE_INT, "gint", &info, &finfo, 0);
    g_assert (type == G_TYPE_INT);
    type = g_type_register_fundamental (G_TYPE_UINT, "guint", &info, &finfo, 0);
    g_assert (type == G_TYPE_UINT);
  }

  /* G_TYPE_LONG / G_TYPE_ULONG
   */
  {
    static const GTypeValueTable value_table = {
      value_init_long0,		/* value_init */
      NULL,			/* value_free */
      value_copy_long0,		/* value_copy */
      NULL,                     /* value_peek_pointer */
      "l",			/* collect_format */
      value_collect_long,	/* collect_value */
      "p",			/* lcopy_format */
      value_lcopy_long,		/* lcopy_value */
    };
    info.value_table = &value_table;
    type = g_type_register_fundamental (G_TYPE_LONG, "glong", &info, &finfo, 0);
    g_assert (type == G_TYPE_LONG);
    type = g_type_register_fundamental (G_TYPE_ULONG, "gulong", &info, &finfo, 0);