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gimp/app/pdb/gimppdb.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <stdarg.h>
#include <string.h>
#include <sys/types.h>
#include <glib-object.h>
#include <gobject/gvaluecollector.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpcolor/gimpcolor.h"
#include "pdb-types.h"
#include "core/gimp.h"
#include "core/gimpcontext.h"
#include "core/gimpchannel.h"
#include "core/gimplayer.h"
#include "core/gimpparamspecs.h"
#include "core/gimpprogress.h"
#include "vectors/gimpvectors.h"
#include "plug-in/plug-in-run.h"
#include "gimp-pdb.h"
#include "gimpprocedure.h"
#include "internal_procs.h"
#include "gimp-intl.h"
/* local function prototypes */
static void gimp_pdb_free_entry (gpointer key,
gpointer value,
gpointer user_data);
/* public functions */
void
gimp_pdb_init (Gimp *gimp)
{
g_return_if_fail (GIMP_IS_GIMP (gimp));
gimp->procedural_ht = g_hash_table_new (g_str_hash, g_str_equal);
gimp->procedural_compat_ht = g_hash_table_new (g_str_hash, g_str_equal);
}
void
gimp_pdb_exit (Gimp *gimp)
{
g_return_if_fail (GIMP_IS_GIMP (gimp));
if (gimp->procedural_ht)
{
g_hash_table_foreach (gimp->procedural_ht,
gimp_pdb_free_entry, NULL);
g_hash_table_destroy (gimp->procedural_ht);
gimp->procedural_ht = NULL;
}
if (gimp->procedural_compat_ht)
{
g_hash_table_destroy (gimp->procedural_compat_ht);
gimp->procedural_compat_ht = NULL;
}
}
void
gimp_pdb_init_procs (Gimp *gimp)
{
static const struct
{
const gchar *old_name;
const gchar *new_name;
}
compat_procs[] =
{
{ "gimp-blend", "gimp-edit-blend" },
{ "gimp-brushes-list", "gimp-brushes-get-list" },
{ "gimp-bucket-fill", "gimp-edit-bucket-fill" },
{ "gimp-channel-delete", "gimp-drawable-delete" },
{ "gimp-channel-get-name", "gimp-drawable-get-name" },
{ "gimp-channel-get-tattoo", "gimp-drawable-get-tattoo" },
{ "gimp-channel-get-visible", "gimp-drawable-get-visible" },
{ "gimp-channel-set-name", "gimp-drawable-set-name" },
{ "gimp-channel-set-tattoo", "gimp-drawable-set-tattoo" },
{ "gimp-channel-set-visible", "gimp-drawable-set-visible" },
{ "gimp-color-picker", "gimp-image-pick-color" },
{ "gimp-convert-grayscale", "gimp-image-convert-grayscale" },
{ "gimp-convert-indexed", "gimp-image-convert-indexed" },
{ "gimp-convert-rgb", "gimp-image-convert-rgb" },
{ "gimp-crop", "gimp-image-crop" },
{ "gimp-drawable-bytes", "gimp-drawable-bpp" },
{ "gimp-drawable-image", "gimp-drawable-get-image" },
{ "gimp-image-active-drawable", "gimp-image-get-active-drawable" },
{ "gimp-image-floating-selection", "gimp-image-get-floating-sel" },
{ "gimp-layer-delete", "gimp-drawable-delete" },
{ "gimp-layer-get-linked", "gimp-drawable-get-linked" },
{ "gimp-layer-get-name", "gimp-drawable-get-name" },
{ "gimp-layer-get-tattoo", "gimp-drawable-get-tattoo" },
{ "gimp-layer-get-visible", "gimp-drawable-get-visible" },
{ "gimp-layer-mask", "gimp-layer-get-mask" },
{ "gimp-layer-set-linked", "gimp-drawable-set-linked" },
{ "gimp-layer-set-name", "gimp-drawable-set-name" },
{ "gimp-layer-set-tattoo", "gimp-drawable-set-tattoo" },
{ "gimp-layer-set-visible", "gimp-drawable-set-visible" },
{ "gimp-palette-refresh", "gimp-palettes-refresh" },
{ "gimp-patterns-list", "gimp-patterns-get-list" },
{ "gimp-temp-PDB-name", "gimp-procedural-db-temp-name" },
{ "gimp-undo-push-group-end", "gimp-image-undo-group-end" },
{ "gimp-undo-push-group-start", "gimp-image-undo-group-start" },
/* deprecations since 2.0 */
{ "gimp-brushes-get-opacity", "gimp-context-get-opacity" },
{ "gimp-brushes-get-paint-mode", "gimp-context-get-paint-mode" },
{ "gimp-brushes-set-brush", "gimp-context-set-brush" },
{ "gimp-brushes-set-opacity", "gimp-context-set-opacity" },
{ "gimp-brushes-set-paint-mode", "gimp-context-set-paint-mode" },
{ "gimp-channel-ops-duplicate", "gimp-image-duplicate" },
{ "gimp-channel-ops-offset", "gimp-drawable-offset" },
{ "gimp-gradients-get-active", "gimp-context-get-gradient" },
{ "gimp-gradients-get-gradient", "gimp-context-get-gradient" },
{ "gimp-gradients-set-active", "gimp-context-set-gradient" },
{ "gimp-gradients-set-gradient", "gimp-context-set-gradient" },
{ "gimp-image-get-cmap", "gimp-image-get-colormap" },
{ "gimp-image-set-cmap", "gimp-image-set-colormap" },
{ "gimp-palette-get-background", "gimp-context-get-background" },
{ "gimp-palette-get-foreground", "gimp-context-get-foreground" },
{ "gimp-palette-set-background", "gimp-context-set-background" },
{ "gimp-palette-set-default-colors", "gimp-context-set-default-colors" },
{ "gimp-palette-set-foreground", "gimp-context-set-foreground" },
{ "gimp-palette-swap-colors", "gimp-context-swap-colors" },
{ "gimp-palettes-set-palette", "gimp-context-set-palette" },
{ "gimp-patterns-set-pattern", "gimp-context-set-pattern" },
{ "gimp-selection-clear", "gimp-selection-none" },
/* deprecations since 2.2 */
{ "gimp-layer-get-preserve-trans", "gimp-drawable-get-lock-alpha" },
{ "gimp-layer-set-preserve-trans", "gimp-drawable-set-lock-alpha" }
};
GTimer *timer;
g_return_if_fail (GIMP_IS_GIMP (gimp));
timer = g_timer_new ();
g_timer_start (timer);
internal_procs_init (gimp);
g_printerr ("internal_procs_init took %f secs\n",
g_timer_elapsed (timer, NULL));
g_timer_destroy (timer);
if (gimp->pdb_compat_mode != GIMP_PDB_COMPAT_OFF)
{
gint i;
for (i = 0; i < G_N_ELEMENTS (compat_procs); i++)
g_hash_table_insert (gimp->procedural_compat_ht,
(gpointer) compat_procs[i].old_name,
(gpointer) compat_procs[i].new_name);
}
}
void
gimp_pdb_register (Gimp *gimp,
GimpProcedure *procedure)
{
GList *list;
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (GIMP_IS_PROCEDURE (procedure));
list = g_hash_table_lookup (gimp->procedural_ht, procedure->name);
g_hash_table_insert (gimp->procedural_ht,
procedure->name,
g_list_prepend (list, procedure));
}
void
gimp_pdb_unregister (Gimp *gimp,
const gchar *procedure_name)
{
GList *list;
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (procedure_name != NULL);
list = g_hash_table_lookup (gimp->procedural_ht, procedure_name);
if (list)
{
list = g_list_remove (list, list->data);
if (list)
g_hash_table_insert (gimp->procedural_ht, (gpointer) procedure_name,
list);
else
g_hash_table_remove (gimp->procedural_ht, procedure_name);
}
}
GimpProcedure *
gimp_pdb_lookup (Gimp *gimp,
const gchar *procedure_name)
{
GList *list;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (procedure_name != NULL, NULL);
list = g_hash_table_lookup (gimp->procedural_ht, procedure_name);
if (list)
return list->data;
return NULL;
}
GValueArray *
gimp_pdb_execute (Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
const gchar *procedure_name,
GValueArray *args)
{
GValueArray *return_vals = NULL;
GList *list;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), NULL);
g_return_val_if_fail (procedure_name != NULL, NULL);
list = g_hash_table_lookup (gimp->procedural_ht, procedure_name);
if (list == NULL)
{
g_message (_("PDB calling error:\n"
"Procedure '%s' not found"), procedure_name);
return_vals = gimp_procedure_get_return_values (NULL, FALSE);
g_value_set_enum (return_vals->values, GIMP_PDB_CALLING_ERROR);
return return_vals;
}
g_return_val_if_fail (args != NULL, NULL);
for (; list; list = g_list_next (list))
{
GimpProcedure *procedure = list->data;
g_return_val_if_fail (GIMP_IS_PROCEDURE (procedure), NULL);
return_vals = gimp_procedure_execute (procedure,
gimp, context, progress,
args);
if (g_value_get_enum (&return_vals->values[0]) == GIMP_PDB_PASS_THROUGH)
{
/* If the return value is GIMP_PDB_PASS_THROUGH and there is
* a next procedure in the list, destroy the return values
* and run the next procedure.
*/
if (g_list_next (list))
g_value_array_free (return_vals);
}
else
{
/* No GIMP_PDB_PASS_THROUGH, break out of the list of
* procedures and return the current return values.
*/
break;
}
}
return return_vals;
}
GValueArray *
gimp_pdb_run_proc (Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
const gchar *procedure_name,
...)
{
GimpProcedure *procedure;
GValueArray *args;
GValueArray *return_vals;
va_list va_args;
gint i;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), NULL);
g_return_val_if_fail (procedure_name != NULL, NULL);
procedure = gimp_pdb_lookup (gimp, procedure_name);
if (procedure == NULL)
{
g_message (_("PDB calling error:\n"
"Procedure '%s' not found"), procedure_name);
return_vals = gimp_procedure_get_return_values (NULL, FALSE);
g_value_set_enum (return_vals->values, GIMP_PDB_CALLING_ERROR);
return return_vals;
}
args = gimp_procedure_get_arguments (procedure);
va_start (va_args, procedure_name);
for (i = 0; i < procedure->num_args; i++)
{
GValue *value;
GType arg_type;
gchar *error = NULL;
arg_type = va_arg (va_args, GType);
if (arg_type == G_TYPE_NONE)
break;
value = &args->values[i];
if (arg_type != G_VALUE_TYPE (value))
{
const gchar *expected = g_type_name (G_VALUE_TYPE (value));
const gchar *got = g_type_name (arg_type);
g_value_array_free (args);
g_message (_("PDB calling error for procedure '%s':\n"
"Argument #%d type mismatch (expected %s, got %s)"),
procedure->name, i + 1, expected, got);
return_vals = gimp_procedure_get_return_values (procedure, FALSE);
g_value_set_enum (return_vals->values, GIMP_PDB_CALLING_ERROR);
return return_vals;
}
G_VALUE_COLLECT (value, va_args, G_VALUE_NOCOPY_CONTENTS, &error);
if (error)
{
g_warning ("%s: %s", G_STRFUNC, error);
g_free (error);
g_value_array_free (args);
return_vals = gimp_procedure_get_return_values (procedure, FALSE);
g_value_set_enum (return_vals->values, GIMP_PDB_CALLING_ERROR);
return return_vals;
}
}
va_end (va_args);
return_vals = gimp_pdb_execute (gimp, context, progress,
procedure_name, args);
g_value_array_free (args);
return return_vals;
}
/* private functions */
static void
gimp_pdb_free_entry (gpointer key,
gpointer value,
gpointer user_data)
{
if (value)
{
g_list_foreach (value, (GFunc) g_object_unref, NULL);
g_list_free (value);
}
}
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