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451d392aac
2002-09-10 Michael Natterer <mitch@gimp.org> Some PDB cleanup: * tools/pdbgen/pdb/procedural_db.pdb: removed the get_data() and set_data() implementations and the global "data_list" variable. Cleaned up the dump() stuff (pass the FILE pointer around instead of having a global variable for it). Fixed output_string() so it does not crash on NULL strings. * app/core/gimp.[ch]: added gimp->procedural_db_data_list. * app/pdb/procedural_db.[ch]: added procedural_db_[set|get]_data(). Don't leak data identifiers when overwriting an already existing entry. Added g_return_if_fail() stuff to all public functions. * tools/pdbgen/pdb/channel.pdb * tools/pdbgen/pdb/drawable.pdb * tools/pdbgen/pdb/layer.pdb * tools/pdbgen/pdb/parasite.pdb: tweaked some helper functions to take parameters which make them aware of the real type of the objects they handle (e.g. the PDB function gimp_layer_set_name() matches the core function gimp_object_get_name()). * app/pdb/pdb_glue.h: removed ugly CPP-level workarounds for the issue mentioned above. * app/pdb/channel_cmds.c * app/pdb/drawable_cmds.c * app/pdb/layer_cmds.c * app/pdb/parasite_cmds.c * app/pdb/procedural_db_cmds.c: regenerated.
528 lines
12 KiB
C
528 lines
12 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <stdarg.h>
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#include <string.h>
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#include <sys/types.h>
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#include <gtk/gtk.h>
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#include "libgimpbase/gimpbase.h"
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#include "pdb-types.h"
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#include "core/gimp.h"
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#include "plug-in/plug-in.h"
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#include "procedural_db.h"
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#include "libgimp/gimpintl.h"
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typedef struct _PDBData PDBData;
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struct _PDBData
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{
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gchar *identifier;
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gint32 bytes;
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guint8 *data;
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};
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void
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procedural_db_init (Gimp *gimp)
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{
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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gimp->procedural_ht = g_hash_table_new (g_str_hash, g_str_equal);
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gimp->procedural_db_data_list = NULL;
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}
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static void
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procedural_db_free_entry (gpointer key,
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gpointer value,
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gpointer user_data)
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{
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if (value)
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g_list_free (value);
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}
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void
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procedural_db_free (Gimp *gimp)
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{
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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if (gimp->procedural_ht)
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{
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g_hash_table_foreach (gimp->procedural_ht,
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procedural_db_free_entry, NULL);
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g_hash_table_destroy (gimp->procedural_ht);
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gimp->procedural_ht = NULL;
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}
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if (gimp->procedural_db_data_list)
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{
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PDBData *data;
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GList *list;
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for (list = gimp->procedural_db_data_list; list; list = g_list_next (list))
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{
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data = (PDBData *) list->data;
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g_free (data->identifier);
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g_free (data->data);
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g_free (data);
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}
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g_list_free (gimp->procedural_db_data_list);
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gimp->procedural_db_data_list = NULL;
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}
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}
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void
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procedural_db_register (Gimp *gimp,
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ProcRecord *procedure)
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{
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GList *list;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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g_return_if_fail (procedure != NULL);
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list = g_hash_table_lookup (gimp->procedural_ht, (gpointer) procedure->name);
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list = g_list_prepend (list, (gpointer) procedure);
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g_hash_table_insert (gimp->procedural_ht,
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(gpointer) procedure->name,
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(gpointer) list);
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}
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void
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procedural_db_unregister (Gimp *gimp,
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const gchar *name)
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{
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GList *list;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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g_return_if_fail (name != NULL);
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list = g_hash_table_lookup (gimp->procedural_ht, (gpointer) name);
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if (list)
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{
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list = g_list_remove (list, list->data);
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if (list)
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g_hash_table_insert (gimp->procedural_ht,
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(gpointer) name,
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(gpointer) list);
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else
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g_hash_table_remove (gimp->procedural_ht,
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(gpointer) name);
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}
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}
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ProcRecord *
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procedural_db_lookup (Gimp *gimp,
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const gchar *name)
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{
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GList *list;
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g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
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g_return_val_if_fail (name != NULL, NULL);
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list = g_hash_table_lookup (gimp->procedural_ht, (gpointer) name);
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if (list)
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return (ProcRecord *) list->data;
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else
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return NULL;
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}
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Argument *
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procedural_db_execute (Gimp *gimp,
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const gchar *name,
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Argument *args)
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{
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ProcRecord *procedure;
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Argument *return_args;
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GList *list;
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gint i;
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g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
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g_return_val_if_fail (name != NULL, NULL);
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return_args = NULL;
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list = g_hash_table_lookup (gimp->procedural_ht, (gpointer) name);
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if (list == NULL)
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{
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g_message (_("PDB calling error %s not found"), name);
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return_args = g_new (Argument, 1);
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return_args->arg_type = GIMP_PDB_STATUS;
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return_args->value.pdb_int = GIMP_PDB_CALLING_ERROR;
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return return_args;
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}
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while (list)
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{
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if ((procedure = (ProcRecord *) list->data) == NULL)
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{
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g_message (_("PDB calling error %s not found"), name);
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return_args = g_new (Argument, 1);
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return_args->arg_type = GIMP_PDB_STATUS;
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return_args->value.pdb_int = GIMP_PDB_CALLING_ERROR;
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return return_args;
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}
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list = list->next;
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/* check the arguments */
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for (i = 0; i < procedure->num_args; i++)
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{
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if (args[i].arg_type != procedure->args[i].arg_type)
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{
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return_args = g_new (Argument, 1);
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return_args->arg_type = GIMP_PDB_STATUS;
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return_args->value.pdb_int = GIMP_PDB_CALLING_ERROR;
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g_message (_("PDB calling error %s"), procedure->name);
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return return_args;
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}
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}
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/* call the procedure */
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switch (procedure->proc_type)
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{
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case GIMP_INTERNAL:
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return_args =
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(* procedure->exec_method.internal.marshal_func) (gimp, args);
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break;
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case GIMP_PLUGIN:
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case GIMP_EXTENSION:
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case GIMP_TEMPORARY:
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return_args = plug_in_run (gimp,
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procedure,
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args, procedure->num_args,
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TRUE, FALSE, -1);
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break;
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default:
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return_args = g_new (Argument, 1);
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return_args->arg_type = GIMP_PDB_STATUS;
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return_args->value.pdb_int = GIMP_PDB_EXECUTION_ERROR;
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break;
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}
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if ((return_args[0].value.pdb_int != GIMP_PDB_SUCCESS) &&
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(procedure->num_values > 0))
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memset (&return_args[1], 0, sizeof (Argument) * procedure->num_values);
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/* Check if the return value is a PDB_PASS_THROUGH,
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in which case run the next procedure in the list */
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if (return_args[0].value.pdb_int != GIMP_PDB_PASS_THROUGH)
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break;
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else if (list) /* Pass through,
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destroy return values and run another procedure */
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procedural_db_destroy_args (return_args, procedure->num_values);
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}
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return return_args;
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}
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Argument *
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procedural_db_run_proc (Gimp *gimp,
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const gchar *name,
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gint *nreturn_vals,
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...)
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{
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ProcRecord *proc;
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Argument *params;
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Argument *return_vals;
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va_list args;
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gint i;
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g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
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g_return_val_if_fail (name != NULL, NULL);
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if ((proc = procedural_db_lookup (gimp, name)) == NULL)
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{
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return_vals = g_new (Argument, 1);
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return_vals->arg_type = GIMP_PDB_STATUS;
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return_vals->value.pdb_int = GIMP_PDB_CALLING_ERROR;
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return return_vals;
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}
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/* allocate the parameter array */
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params = g_new (Argument, proc->num_args);
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va_start (args, nreturn_vals);
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for (i = 0; i < proc->num_args; i++)
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{
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if (proc->args[i].arg_type !=
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(params[i].arg_type = va_arg (args, GimpPDBArgType)))
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{
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g_message (_("Incorrect arguments passed to procedural_db_run_proc:\n"
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"Argument %d to '%s' should be a %s, but got passed a %s"),
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i+1, proc->name,
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pdb_type_name (proc->args[i].arg_type),
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pdb_type_name (params[i].arg_type));
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g_free (params);
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return NULL;
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}
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switch (proc->args[i].arg_type)
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{
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case GIMP_PDB_INT32:
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case GIMP_PDB_INT16:
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case GIMP_PDB_INT8:
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case GIMP_PDB_DISPLAY:
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params[i].value.pdb_int = (gint32) va_arg (args, gint);
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break;
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case GIMP_PDB_FLOAT:
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params[i].value.pdb_float = (gdouble) va_arg (args, gdouble);
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break;
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case GIMP_PDB_STRING:
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case GIMP_PDB_INT32ARRAY:
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case GIMP_PDB_INT16ARRAY:
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case GIMP_PDB_INT8ARRAY:
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case GIMP_PDB_FLOATARRAY:
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case GIMP_PDB_STRINGARRAY:
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params[i].value.pdb_pointer = va_arg (args, gpointer);
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break;
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case GIMP_PDB_COLOR:
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params[i].value.pdb_color = va_arg (args, GimpRGB);
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break;
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case GIMP_PDB_REGION:
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break;
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case GIMP_PDB_IMAGE:
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case GIMP_PDB_LAYER:
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case GIMP_PDB_CHANNEL:
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case GIMP_PDB_DRAWABLE:
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case GIMP_PDB_SELECTION:
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case GIMP_PDB_BOUNDARY:
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case GIMP_PDB_PATH:
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params[i].value.pdb_int = (gint32) va_arg (args, gint);
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break;
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case GIMP_PDB_PARASITE:
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params[i].value.pdb_pointer = va_arg (args, gpointer);
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break;
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case GIMP_PDB_STATUS:
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params[i].value.pdb_int = (gint32) va_arg (args, gint);
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break;
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case GIMP_PDB_END:
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break;
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}
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}
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va_end (args);
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*nreturn_vals = proc->num_values;
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return_vals = procedural_db_execute (gimp, name, params);
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g_free (params);
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return return_vals;
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}
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Argument *
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procedural_db_return_args (ProcRecord *procedure,
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gboolean success)
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{
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Argument *return_args;
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gint i;
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g_return_val_if_fail (procedure != NULL, NULL);
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return_args = g_new (Argument, procedure->num_values + 1);
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if (success)
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{
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return_args[0].arg_type = GIMP_PDB_STATUS;
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return_args[0].value.pdb_int = GIMP_PDB_SUCCESS;
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}
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else
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{
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return_args[0].arg_type = GIMP_PDB_STATUS;
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return_args[0].value.pdb_int = GIMP_PDB_EXECUTION_ERROR;
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}
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/* Set the arg types for the return values */
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for (i = 0; i < procedure->num_values; i++)
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return_args[i+1].arg_type = procedure->values[i].arg_type;
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return return_args;
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}
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void
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procedural_db_destroy_args (Argument *args,
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gint nargs)
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{
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gint i;
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if (! args)
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return;
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for (i = 0; i < nargs; i++)
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{
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switch (args[i].arg_type)
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{
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case GIMP_PDB_INT32:
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case GIMP_PDB_INT16:
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case GIMP_PDB_INT8:
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case GIMP_PDB_FLOAT:
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break;
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case GIMP_PDB_STRING:
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case GIMP_PDB_INT32ARRAY:
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case GIMP_PDB_INT16ARRAY:
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case GIMP_PDB_INT8ARRAY:
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case GIMP_PDB_FLOATARRAY:
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g_free (args[i].value.pdb_pointer);
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break;
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case GIMP_PDB_STRINGARRAY:
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{
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gchar **stringarray;
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gint count;
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gint j;
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count = args[i - 1].value.pdb_int;
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stringarray = args[i].value.pdb_pointer;
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for (j = 0; j < count; j++)
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g_free (stringarray[j]);
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g_free (args[i].value.pdb_pointer);
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}
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break;
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case GIMP_PDB_COLOR:
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case GIMP_PDB_REGION:
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case GIMP_PDB_DISPLAY:
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case GIMP_PDB_IMAGE:
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case GIMP_PDB_LAYER:
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case GIMP_PDB_CHANNEL:
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case GIMP_PDB_DRAWABLE:
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case GIMP_PDB_SELECTION:
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case GIMP_PDB_BOUNDARY:
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case GIMP_PDB_PATH:
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break;
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case GIMP_PDB_PARASITE:
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gimp_parasite_free ((GimpParasite *) (args[i].value.pdb_pointer));
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break;
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case GIMP_PDB_STATUS:
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case GIMP_PDB_END:
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break;
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}
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}
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g_free (args);
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}
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void
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procedural_db_set_data (Gimp *gimp,
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const gchar *identifier,
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gint32 bytes,
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const guint8 *data)
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{
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GList *list;
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PDBData *pdb_data;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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g_return_if_fail (identifier != NULL);
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g_return_if_fail (bytes > 0);
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g_return_if_fail (data != NULL);
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for (list = gimp->procedural_db_data_list; list; list = g_list_next (list))
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{
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pdb_data = (PDBData *) list->data;
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if (! strcmp (pdb_data->identifier, identifier))
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break;
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}
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/* If there isn't already data with the specified identifier, create one */
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if (list == NULL)
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{
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pdb_data = g_new0 (PDBData, 1);
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pdb_data->identifier = g_strdup (identifier);
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gimp->procedural_db_data_list =
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g_list_prepend (gimp->procedural_db_data_list, pdb_data);
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}
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else
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{
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g_free (pdb_data->data);
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}
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pdb_data->bytes = bytes;
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pdb_data->data = g_memdup (data, bytes);
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}
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const guint8 *
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procedural_db_get_data (Gimp *gimp,
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const gchar *identifier,
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gint32 *bytes)
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{
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GList *list;
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PDBData *pdb_data;
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g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
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g_return_val_if_fail (identifier != NULL, NULL);
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g_return_val_if_fail (bytes != NULL, NULL);
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*bytes = 0;
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for (list = gimp->procedural_db_data_list; list; list = g_list_next (list))
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{
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pdb_data = (PDBData *) list->data;
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if (! strcmp (pdb_data->identifier, identifier))
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{
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*bytes = pdb_data->bytes;
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return pdb_data->data;
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}
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}
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return NULL;
|
|
}
|