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-rw-r--r--app/plug-in/gimppluginprocframe.c200
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diff --git a/app/plug-in/gimppluginprocframe.c b/app/plug-in/gimppluginprocframe.c
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimppluginprocframe.c
+ *
+ * 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 <string.h>
+
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gegl.h>
+
+#include "libgimpbase/gimpbase.h"
+
+#include "plug-in-types.h"
+
+#include "core/gimpprogress.h"
+
+#include "pdb/gimppdbcontext.h"
+#include "pdb/gimppdberror.h"
+
+#include "gimpplugin.h"
+#include "gimpplugin-cleanup.h"
+#include "gimpplugin-progress.h"
+#include "gimppluginprocedure.h"
+
+#include "gimp-intl.h"
+
+
+/* public functions */
+
+GimpPlugInProcFrame *
+gimp_plug_in_proc_frame_new (GimpContext *context,
+ GimpProgress *progress,
+ GimpPlugInProcedure *procedure)
+{
+ GimpPlugInProcFrame *proc_frame;
+
+ g_return_val_if_fail (GIMP_IS_PDB_CONTEXT (context), NULL);
+ g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), NULL);
+ g_return_val_if_fail (GIMP_IS_PLUG_IN_PROCEDURE (procedure), NULL);
+
+ proc_frame = g_slice_new0 (GimpPlugInProcFrame);
+
+ proc_frame->ref_count = 1;
+
+ gimp_plug_in_proc_frame_init (proc_frame, context, progress, procedure);
+
+ return proc_frame;
+}
+
+void
+gimp_plug_in_proc_frame_init (GimpPlugInProcFrame *proc_frame,
+ GimpContext *context,
+ GimpProgress *progress,
+ GimpPlugInProcedure *procedure)
+{
+ g_return_if_fail (proc_frame != NULL);
+ g_return_if_fail (GIMP_IS_PDB_CONTEXT (context));
+ g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
+ g_return_if_fail (procedure == NULL ||
+ GIMP_IS_PLUG_IN_PROCEDURE (procedure));
+
+ proc_frame->main_context = g_object_ref (context);
+ proc_frame->context_stack = NULL;
+ proc_frame->procedure = procedure ? g_object_ref (GIMP_PROCEDURE (procedure)) : NULL;
+ proc_frame->main_loop = NULL;
+ proc_frame->return_vals = NULL;
+ proc_frame->progress = progress ? g_object_ref (progress) : NULL;
+ proc_frame->progress_created = FALSE;
+ proc_frame->progress_cancel_id = 0;
+ proc_frame->error_handler = GIMP_PDB_ERROR_HANDLER_INTERNAL;
+
+ if (progress)
+ gimp_plug_in_progress_attach (progress);
+}
+
+void
+gimp_plug_in_proc_frame_dispose (GimpPlugInProcFrame *proc_frame,
+ GimpPlugIn *plug_in)
+{
+ g_return_if_fail (proc_frame != NULL);
+ g_return_if_fail (GIMP_IS_PLUG_IN (plug_in));
+
+ if (proc_frame->progress)
+ {
+ gimp_plug_in_progress_end (plug_in, proc_frame);
+
+ g_clear_object (&proc_frame->progress);
+ }
+
+ if (proc_frame->context_stack)
+ {
+ g_list_free_full (proc_frame->context_stack,
+ (GDestroyNotify) g_object_unref);
+ proc_frame->context_stack = NULL;
+ }
+
+ g_clear_object (&proc_frame->main_context);
+ g_clear_pointer (&proc_frame->return_vals, gimp_value_array_unref);
+ g_clear_pointer (&proc_frame->main_loop, g_main_loop_unref);
+
+ if (proc_frame->image_cleanups || proc_frame->item_cleanups)
+ gimp_plug_in_cleanup (plug_in, proc_frame);
+
+ g_clear_object (&proc_frame->procedure);
+}
+
+GimpPlugInProcFrame *
+gimp_plug_in_proc_frame_ref (GimpPlugInProcFrame *proc_frame)
+{
+ g_return_val_if_fail (proc_frame != NULL, NULL);
+
+ proc_frame->ref_count++;
+
+ return proc_frame;
+}
+
+void
+gimp_plug_in_proc_frame_unref (GimpPlugInProcFrame *proc_frame,
+ GimpPlugIn *plug_in)
+{
+ g_return_if_fail (proc_frame != NULL);
+ g_return_if_fail (GIMP_IS_PLUG_IN (plug_in));
+
+ proc_frame->ref_count--;
+
+ if (proc_frame->ref_count < 1)
+ {
+ gimp_plug_in_proc_frame_dispose (proc_frame, plug_in);
+ g_slice_free (GimpPlugInProcFrame, proc_frame);
+ }
+}
+
+GimpValueArray *
+gimp_plug_in_proc_frame_get_return_values (GimpPlugInProcFrame *proc_frame)
+{
+ GimpValueArray *return_vals;
+
+ g_return_val_if_fail (proc_frame != NULL, NULL);
+
+ if (proc_frame->return_vals)
+ {
+ if (gimp_value_array_length (proc_frame->return_vals) >=
+ proc_frame->procedure->num_values + 1)
+ {
+ return_vals = proc_frame->return_vals;
+ }
+ else
+ {
+ /* Allocate new return values of the correct size. */
+ return_vals = gimp_procedure_get_return_values (proc_frame->procedure,
+ TRUE, NULL);
+
+ /* Copy all of the arguments we can. */
+ memcpy (gimp_value_array_index (return_vals, 0),
+ gimp_value_array_index (proc_frame->return_vals, 0),
+ sizeof (GValue) *
+ gimp_value_array_length (proc_frame->return_vals));
+
+ /* Free the old arguments. */
+ memset (gimp_value_array_index (proc_frame->return_vals, 0), 0,
+ sizeof (GValue) *
+ gimp_value_array_length (proc_frame->return_vals));
+ gimp_value_array_unref (proc_frame->return_vals);
+ }
+
+ /* We have consumed any saved values, so clear them. */
+ proc_frame->return_vals = NULL;
+ }
+ else
+ {
+ GimpProcedure *procedure = proc_frame->procedure;
+ GError *error;
+
+ error = g_error_new (GIMP_PDB_ERROR, GIMP_PDB_ERROR_INVALID_RETURN_VALUE,
+ _("Procedure '%s' returned no return values"),
+ gimp_object_get_name (procedure));
+
+ return_vals = gimp_procedure_get_return_values (procedure, FALSE,
+ error);
+ g_error_free (error);
+ }
+
+ return return_vals;
+}