mirror of https://github.com/GNOME/gimp.git
318 lines
8.3 KiB
C
318 lines
8.3 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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* plug-in-progress.c
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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 <glib-object.h>
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#include "plug-in-types.h"
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#include "core/gimp.h"
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#include "core/gimppdbprogress.h"
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#include "core/gimpprogress.h"
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#include "pdb/procedural_db.h"
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#include "plug-in.h"
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#include "plug-in-progress.h"
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/* local function prototypes */
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static void plug_in_progress_cancel_callback (GimpProgress *progress,
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PlugIn *plug_in);
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/* public functions */
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void
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plug_in_progress_start (PlugIn *plug_in,
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const gchar *message,
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gint display_ID)
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{
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PlugInProcFrame *proc_frame;
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g_return_if_fail (plug_in != NULL);
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proc_frame = plug_in_get_proc_frame (plug_in);
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if (! proc_frame->progress)
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{
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proc_frame->progress = gimp_new_progress (plug_in->gimp, display_ID);
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if (proc_frame->progress)
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{
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proc_frame->progress_created = TRUE;
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g_object_ref (proc_frame->progress);
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}
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}
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if (proc_frame->progress)
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{
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if (! proc_frame->progress_cancel_id)
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proc_frame->progress_cancel_id =
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g_signal_connect (proc_frame->progress, "cancel",
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G_CALLBACK (plug_in_progress_cancel_callback),
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plug_in);
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if (gimp_progress_is_active (proc_frame->progress))
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{
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if (message)
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gimp_progress_set_text (proc_frame->progress, message);
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if (gimp_progress_get_value (proc_frame->progress) > 0.0)
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gimp_progress_set_value (proc_frame->progress, 0.0);
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}
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else
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{
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gimp_progress_start (proc_frame->progress,
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message ? message : "",
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TRUE);
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}
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}
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}
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void
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plug_in_progress_update (PlugIn *plug_in,
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gdouble percentage)
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{
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PlugInProcFrame *proc_frame;
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g_return_if_fail (plug_in != NULL);
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proc_frame = plug_in_get_proc_frame (plug_in);
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if (! proc_frame->progress ||
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! gimp_progress_is_active (proc_frame->progress) ||
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! proc_frame->progress_cancel_id)
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{
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plug_in_progress_start (plug_in, NULL, -1);
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}
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if (proc_frame->progress && gimp_progress_is_active (proc_frame->progress))
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gimp_progress_set_value (proc_frame->progress, percentage);
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}
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void
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plug_in_progress_pulse (PlugIn *plug_in)
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{
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PlugInProcFrame *proc_frame;
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g_return_if_fail (plug_in != NULL);
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proc_frame = plug_in_get_proc_frame (plug_in);
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if (! proc_frame->progress ||
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! gimp_progress_is_active (proc_frame->progress) ||
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! proc_frame->progress_cancel_id)
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{
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plug_in_progress_start (plug_in, NULL, -1);
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}
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if (proc_frame->progress && gimp_progress_is_active (proc_frame->progress))
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gimp_progress_pulse (proc_frame->progress);
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}
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void
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plug_in_progress_set_text (PlugIn *plug_in,
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const gchar *message)
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{
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PlugInProcFrame *proc_frame;
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g_return_if_fail (plug_in != NULL);
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proc_frame = plug_in_get_proc_frame (plug_in);
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if (proc_frame->progress)
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gimp_progress_set_text (proc_frame->progress, message);
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}
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void
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plug_in_progress_end (PlugIn *plug_in)
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{
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PlugInProcFrame *proc_frame;
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g_return_if_fail (plug_in != NULL);
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proc_frame = plug_in_get_proc_frame (plug_in);
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if (proc_frame->progress)
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{
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if (proc_frame->progress_cancel_id)
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{
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g_signal_handler_disconnect (proc_frame->progress,
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proc_frame->progress_cancel_id);
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proc_frame->progress_cancel_id = 0;
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}
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if (gimp_progress_is_active (proc_frame->progress))
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gimp_progress_end (proc_frame->progress);
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if (proc_frame->progress_created)
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{
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gimp_free_progress (plug_in->gimp, proc_frame->progress);
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g_object_unref (proc_frame->progress);
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proc_frame->progress = NULL;
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}
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}
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}
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gboolean
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plug_in_progress_install (PlugIn *plug_in,
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const gchar *progress_callback)
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{
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PlugInProcFrame *proc_frame;
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ProcRecord *proc_rec;
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g_return_val_if_fail (plug_in != NULL, FALSE);
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g_return_val_if_fail (progress_callback != NULL, FALSE);
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proc_rec = procedural_db_lookup (plug_in->gimp, progress_callback);
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if (! proc_rec ||
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proc_rec->num_args != 3 ||
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proc_rec->args[0].arg_type != GIMP_PDB_INT32 ||
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proc_rec->args[1].arg_type != GIMP_PDB_STRING ||
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proc_rec->args[2].arg_type != GIMP_PDB_FLOAT ||
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proc_rec->proc_type != GIMP_TEMPORARY ||
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proc_rec->exec_method.temporary.plug_in != plug_in)
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{
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return FALSE;
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}
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proc_frame = plug_in_get_proc_frame (plug_in);
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if (proc_frame->progress)
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{
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plug_in_progress_end (plug_in);
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if (proc_frame->progress)
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{
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g_object_unref (proc_frame->progress);
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proc_frame->progress = NULL;
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}
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}
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proc_frame->progress = g_object_new (GIMP_TYPE_PDB_PROGRESS,
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"context", proc_frame->main_context,
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"callback-name", progress_callback,
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NULL);
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return TRUE;
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}
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gboolean
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plug_in_progress_uninstall (PlugIn *plug_in,
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const gchar *progress_callback)
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{
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PlugInProcFrame *proc_frame;
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g_return_val_if_fail (plug_in != NULL, FALSE);
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g_return_val_if_fail (progress_callback != NULL, FALSE);
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proc_frame = plug_in_get_proc_frame (plug_in);
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if (GIMP_IS_PDB_PROGRESS (proc_frame->progress))
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{
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plug_in_progress_end (plug_in);
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g_object_unref (proc_frame->progress);
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proc_frame->progress = NULL;
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return TRUE;
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}
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return FALSE;
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}
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gboolean
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plug_in_progress_cancel (PlugIn *plug_in,
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const gchar *progress_callback)
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{
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g_return_val_if_fail (plug_in != NULL, FALSE);
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g_return_val_if_fail (progress_callback != NULL, FALSE);
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return FALSE;
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}
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void
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plug_in_progress_message (PlugIn *plug_in,
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const gchar *message)
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{
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PlugInProcFrame *proc_frame;
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gchar *domain;
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g_return_if_fail (plug_in != NULL);
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g_return_if_fail (message != NULL);
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proc_frame = plug_in_get_proc_frame (plug_in);
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domain = plug_in_get_undo_desc (plug_in);
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if (proc_frame->progress)
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{
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gimp_progress_message (proc_frame->progress,
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plug_in->gimp, domain, message);
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}
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else
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{
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gimp_message (plug_in->gimp, domain, message);
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}
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g_free (domain);
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}
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/* private functions */
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static void
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plug_in_progress_cancel_callback (GimpProgress *progress,
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PlugIn *plug_in)
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{
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PlugInProcFrame *proc_frame = &plug_in->main_proc_frame;
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GList *list;
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if (proc_frame->main_loop)
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{
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proc_frame->return_vals = g_new (Argument, 1);
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proc_frame->n_return_vals = 1;
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proc_frame->return_vals->arg_type = GIMP_PDB_STATUS;
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proc_frame->return_vals->value.pdb_int = GIMP_PDB_CANCEL;
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}
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for (list = plug_in->temp_proc_frames; list; list = g_list_next (list))
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{
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proc_frame = list->data;
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if (proc_frame->main_loop)
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{
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proc_frame->return_vals = g_new (Argument, 1);
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proc_frame->n_return_vals = 1;
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proc_frame->return_vals->arg_type = GIMP_PDB_STATUS;
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proc_frame->return_vals->value.pdb_int = GIMP_PDB_CANCEL;
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}
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}
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plug_in_close (plug_in, TRUE);
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plug_in_unref (plug_in);
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}
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