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gimp/app/actions/procedure-commands.c

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/* GIMP - The GNU 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 3 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, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "actions-types.h"
#include "core/gimp.h"
#include "core/gimpimage.h"
#include "core/gimpdrawable.h"
#include "core/gimpparamspecs.h"
#include "core/gimpprogress.h"
#include "pdb/gimpprocedure.h"
#include "display/gimpdisplay.h"
#include "procedure-commands.h"
static inline gboolean
GIMP_IS_PARAM_SPEC_RUN_MODE (GParamSpec *pspec)
{
return (G_IS_PARAM_SPEC_ENUM (pspec) &&
pspec->value_type == GIMP_TYPE_RUN_MODE);
}
GimpValueArray *
procedure_commands_get_run_mode_arg (GimpProcedure *procedure)
{
GimpValueArray *args;
gint n_args = 0;
args = gimp_procedure_get_arguments (procedure);
/* initialize the first argument */
if (gimp_value_array_length (args) > n_args &&
GIMP_IS_PARAM_SPEC_RUN_MODE (procedure->args[n_args]))
{
g_value_set_enum (gimp_value_array_index (args, n_args),
GIMP_RUN_INTERACTIVE);
n_args++;
}
if (n_args > 0)
gimp_value_array_truncate (args, n_args);
return args;
}
GimpValueArray *
procedure_commands_get_data_args (GimpProcedure *procedure,
GimpObject *object)
{
GimpValueArray *args;
gint n_args = 0;
args = gimp_procedure_get_arguments (procedure);
/* initialize the first argument */
if (gimp_value_array_length (args) > n_args &&
GIMP_IS_PARAM_SPEC_RUN_MODE (procedure->args[n_args]))
{
g_value_set_enum (gimp_value_array_index (args, n_args),
GIMP_RUN_INTERACTIVE);
n_args++;
}
if (gimp_value_array_length (args) > n_args &&
G_IS_PARAM_SPEC_STRING (procedure->args[n_args]))
{
if (object)
{
g_value_set_string (gimp_value_array_index (args, n_args),
gimp_object_get_name (object));
n_args++;
}
else
{
g_warning ("Uh-oh, no active data object for the plug-in!");
gimp_value_array_unref (args);
return NULL;
}
}
if (n_args > 0)
gimp_value_array_truncate (args, n_args);
return args;
}
GimpValueArray *
procedure_commands_get_image_args (GimpProcedure *procedure,
GimpImage *image)
{
GimpValueArray *args;
gint n_args = 0;
args = gimp_procedure_get_arguments (procedure);
/* initialize the first argument */
if (gimp_value_array_length (args) > n_args &&
GIMP_IS_PARAM_SPEC_RUN_MODE (procedure->args[n_args]))
{
g_value_set_enum (gimp_value_array_index (args, n_args),
GIMP_RUN_INTERACTIVE);
n_args++;
}
if (gimp_value_array_length (args) > n_args &&
GIMP_IS_PARAM_SPEC_IMAGE (procedure->args[n_args]))
{
if (image)
{
g_value_set_object (gimp_value_array_index (args, n_args), image);
n_args++;
}
else
{
g_warning ("Uh-oh, no active image for the plug-in!");
gimp_value_array_unref (args);
return NULL;
}
}
if (n_args)
gimp_value_array_truncate (args, n_args);
return args;
}
GimpValueArray *
procedure_commands_get_item_args (GimpProcedure *procedure,
GimpImage *image,
GimpItem *item)
{
GimpValueArray *args;
gint n_args = 0;
args = gimp_procedure_get_arguments (procedure);
/* initialize the first argument */
if (gimp_value_array_length (args) > n_args &&
GIMP_IS_PARAM_SPEC_RUN_MODE (procedure->args[n_args]))
{
g_value_set_enum (gimp_value_array_index (args, n_args),
GIMP_RUN_INTERACTIVE);
n_args++;
}
if (gimp_value_array_length (args) > n_args &&
GIMP_IS_PARAM_SPEC_IMAGE (procedure->args[n_args]))
{
if (image)
{
g_value_set_object (gimp_value_array_index (args, n_args), image);
n_args++;
if (gimp_value_array_length (args) > n_args &&
GIMP_IS_PARAM_SPEC_ITEM (procedure->args[n_args]))
{
if (item &&
g_type_is_a (G_TYPE_FROM_INSTANCE (item),
G_PARAM_SPEC_VALUE_TYPE (procedure->args[n_args])))
{
g_value_set_object (gimp_value_array_index (args, n_args),
item);
n_args++;
}
else
{
g_warning ("Uh-oh, no active item for the plug-in!");
gimp_value_array_unref (args);
return NULL;
}
}
}
}
if (n_args)
gimp_value_array_truncate (args, n_args);
return args;
}
GimpValueArray *
procedure_commands_get_display_args (GimpProcedure *procedure,
GimpDisplay *display,
GimpObject *settings)
{
GimpValueArray *args;
gint n_args = 0;
args = gimp_procedure_get_arguments (procedure);
/* initialize the first argument */
if (gimp_value_array_length (args) > n_args &&
GIMP_IS_PARAM_SPEC_RUN_MODE (procedure->args[n_args]))
{
g_value_set_enum (gimp_value_array_index (args, n_args),
GIMP_RUN_INTERACTIVE);
n_args++;
}
if (gimp_value_array_length (args) > n_args &&
GIMP_IS_PARAM_SPEC_DISPLAY (procedure->args[n_args]))
{
if (display)
{
g_value_set_object (gimp_value_array_index (args, n_args), display);
n_args++;
}
else
{
g_warning ("Uh-oh, no active display for the plug-in!");
gimp_value_array_unref (args);
return NULL;
}
}
if (gimp_value_array_length (args) > n_args &&
GIMP_IS_PARAM_SPEC_IMAGE (procedure->args[n_args]))
{
GimpImage *image = display ? gimp_display_get_image (display) : NULL;
if (image)
{
GList *drawables_list = gimp_image_get_selected_drawables (image);
g_value_set_object (gimp_value_array_index (args, n_args), image);
n_args++;
if (gimp_value_array_length (args) > n_args &&
GIMP_IS_PARAM_SPEC_DRAWABLE (procedure->args[n_args]))
{
if (drawables_list)
{
g_printerr ("%s: plug-in procedures expecting a single drawable are deprecated!\n",
G_STRFUNC);
g_value_set_object (gimp_value_array_index (args, n_args),
drawables_list->data);
n_args++;
}
else
{
g_warning ("Uh-oh, no active drawable for the plug-in!");
gimp_value_array_unref (args);
g_list_free (drawables_list);
return NULL;
}
}
else if (gimp_value_array_length (args) > n_args + 1 &&
G_IS_PARAM_SPEC_INT (procedure->args[n_args]) &&
GIMP_IS_PARAM_SPEC_OBJECT_ARRAY (procedure->args[n_args + 1]))
{
GimpDrawable **drawables = NULL;
gint n_drawables;
n_drawables = g_list_length (drawables_list);
g_value_set_int (gimp_value_array_index (args, n_args++),
n_drawables);
if (drawables_list)
{
GList *iter;
gint i;
drawables = g_new (GimpDrawable *, n_drawables);
for (iter = drawables_list, i = 0; iter; iter = iter->next, i++)
drawables[i] = iter->data;
}
gimp_value_set_object_array (gimp_value_array_index (args, n_args++),
GIMP_TYPE_DRAWABLE,
(GObject **) drawables, n_drawables);
g_free (drawables);
}
g_list_free (drawables_list);
}
}
if (gimp_value_array_length (args) > n_args &&
g_type_is_a (G_PARAM_SPEC_VALUE_TYPE (procedure->args[n_args]),
GIMP_TYPE_OBJECT))
{
g_value_set_object (gimp_value_array_index (args, n_args), settings);
n_args++;
}
if (n_args)
gimp_value_array_truncate (args, n_args);
return args;
}
gboolean
procedure_commands_run_procedure (GimpProcedure *procedure,
Gimp *gimp,
GimpProgress *progress,
GimpValueArray *args)
{
GimpValueArray *return_vals;
GError *error = NULL;
g_return_val_if_fail (GIMP_IS_PROCEDURE (procedure), FALSE);
g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), FALSE);
g_return_val_if_fail (args != NULL, FALSE);
if (gimp_value_array_length (args) > 0 &&
GIMP_IS_PARAM_SPEC_RUN_MODE (procedure->args[0]))
g_value_set_enum (gimp_value_array_index (args, 0),
GIMP_RUN_NONINTERACTIVE);
return_vals = gimp_procedure_execute (procedure, gimp,
gimp_get_user_context (gimp),
progress, args,
&error);
gimp_value_array_unref (return_vals);
if (error)
{
gimp_message_literal (gimp,
G_OBJECT (progress), GIMP_MESSAGE_ERROR,
error->message);
g_clear_error (&error);
return FALSE;
}
return TRUE;
}
gboolean
procedure_commands_run_procedure_async (GimpProcedure *procedure,
Gimp *gimp,
GimpProgress *progress,
GimpRunMode run_mode,
GimpValueArray *args,
GimpDisplay *display)
{
GError *error = NULL;
g_return_val_if_fail (GIMP_IS_PROCEDURE (procedure), FALSE);
g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), FALSE);
g_return_val_if_fail (display == NULL || GIMP_IS_DISPLAY (display), FALSE);
g_return_val_if_fail (args != NULL, FALSE);
if (gimp_value_array_length (args) > 0 &&
GIMP_IS_PARAM_SPEC_RUN_MODE (procedure->args[0]))
g_value_set_enum (gimp_value_array_index (args, 0),
run_mode);
gimp_procedure_execute_async (procedure, gimp,
gimp_get_user_context (gimp),
progress, args,
display, &error);
if (error)
{
gimp_message_literal (gimp,
G_OBJECT (progress), GIMP_MESSAGE_ERROR,
error->message);
g_clear_error (&error);
return FALSE;
}
return TRUE;
}
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