mirror of https://github.com/GNOME/gimp.git
205 lines
4.1 KiB
C
205 lines
4.1 KiB
C
/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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*
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* gimpparasite.c
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* Copyright (C) 1998 Jay Cox <jaycox@earthlink.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <stdio.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <string.h>
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#include <glib-object.h>
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#ifdef G_OS_WIN32
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#include <process.h> /* For _getpid() */
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#endif
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#include "gimpbasetypes.h"
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#include "gimpparasite.h"
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#ifdef DEBUG
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static void
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gimp_parasite_print (GimpParasite *parasite)
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{
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if (parasite == NULL)
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{
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g_print ("pid %d: attempt to print a null parasite\n", getpid ());
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return;
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}
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g_print ("pid %d: parasite: %p\n", getpid (), parasite);
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if (parasite->name)
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g_print ("\tname: %s\n", parasite->name);
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else
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g_print ("\tname: NULL\n");
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g_print ("\tflags: %d\n", parasite->flags);
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g_print ("\tsize: %d\n", parasite->size);
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if (parasite->size > 0)
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g_print ("\tdata: %p\n", parasite->data);
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}
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#endif
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GimpParasite *
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gimp_parasite_new (const gchar *name,
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guint32 flags,
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guint32 size,
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gconstpointer data)
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{
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GimpParasite *parasite;
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if (!name)
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return NULL;
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parasite = g_new (GimpParasite, 1);
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parasite->name = g_strdup (name);
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parasite->flags = (flags & 0xFF);
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parasite->size = size;
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if (size)
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parasite->data = g_memdup (data, size);
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else
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parasite->data = NULL;
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return parasite;
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}
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void
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gimp_parasite_free (GimpParasite *parasite)
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{
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if (parasite == NULL)
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return;
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if (parasite->name)
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g_free (parasite->name);
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if (parasite->data)
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g_free (parasite->data);
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g_free (parasite);
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}
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gboolean
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gimp_parasite_is_type (const GimpParasite *parasite,
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const gchar *name)
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{
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if (!parasite || !parasite->name)
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return FALSE;
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return (strcmp (parasite->name, name) == 0);
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}
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GimpParasite *
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gimp_parasite_copy (const GimpParasite *parasite)
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{
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if (parasite == NULL)
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return NULL;
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return gimp_parasite_new (parasite->name, parasite->flags,
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parasite->size, parasite->data);
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}
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gboolean
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gimp_parasite_compare (const GimpParasite *a,
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const GimpParasite *b)
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{
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if (a && b &&
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a->name && b->name &&
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strcmp (a->name, b->name) == 0 &&
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a->flags == b->flags &&
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a->size == b->size)
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{
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if (a->data == NULL && b->data == NULL)
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return TRUE;
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else if (a->data && b->data && memcmp (a->data, b->data, a->size) == 0)
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return TRUE;
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}
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return FALSE;
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}
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gulong
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gimp_parasite_flags (const GimpParasite *parasite)
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{
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if (parasite == NULL)
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return 0;
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return parasite->flags;
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}
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gboolean
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gimp_parasite_is_persistent (const GimpParasite *parasite)
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{
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if (parasite == NULL)
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return FALSE;
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return (parasite->flags & GIMP_PARASITE_PERSISTENT);
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}
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gboolean
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gimp_parasite_is_undoable (const GimpParasite *parasite)
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{
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if (parasite == NULL)
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return FALSE;
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return (parasite->flags & GIMP_PARASITE_UNDOABLE);
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}
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gboolean
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gimp_parasite_has_flag (const GimpParasite *parasite,
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gulong flag)
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{
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if (parasite == NULL)
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return FALSE;
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return (parasite->flags & flag);
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}
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const gchar *
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gimp_parasite_name (const GimpParasite *parasite)
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{
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if (parasite)
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return parasite->name;
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return NULL;
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}
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gconstpointer
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gimp_parasite_data (const GimpParasite *parasite)
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{
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if (parasite)
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return parasite->data;
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return NULL;
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}
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glong
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gimp_parasite_data_size (const GimpParasite *parasite)
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{
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if (parasite)
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return parasite->size;
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return 0;
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}
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