374 lines
10 KiB
C
374 lines
10 KiB
C
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/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* pikaplugin-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 3 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, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gegl.h>
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#include "libpikabase/pikabase.h"
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#include "plug-in-types.h"
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#include "core/pika.h"
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#include "core/pikadisplay.h"
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#include "core/pikaparamspecs.h"
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#include "core/pikapdbprogress.h"
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#include "core/pikaprogress.h"
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#include "pdb/pikapdb.h"
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#include "pdb/pikapdberror.h"
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#include "pikaplugin.h"
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#include "pikaplugin-progress.h"
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#include "pikapluginmanager.h"
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#include "pikatemporaryprocedure.h"
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#include "pika-intl.h"
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/* local function prototypes */
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static void pika_plug_in_progress_cancel_callback (PikaProgress *progress,
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PikaPlugIn *plug_in);
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/* public functions */
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gint
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pika_plug_in_progress_attach (PikaProgress *progress)
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{
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gint attach_count;
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g_return_val_if_fail (PIKA_IS_PROGRESS (progress), 0);
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attach_count =
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GPOINTER_TO_INT (g_object_get_data (G_OBJECT (progress),
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"plug-in-progress-attach-count"));
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attach_count++;
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g_object_set_data (G_OBJECT (progress), "plug-in-progress-attach-count",
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GINT_TO_POINTER (attach_count));
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return attach_count;
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}
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gint
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pika_plug_in_progress_detach (PikaProgress *progress)
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{
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gint attach_count;
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g_return_val_if_fail (PIKA_IS_PROGRESS (progress), 0);
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attach_count =
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GPOINTER_TO_INT (g_object_get_data (G_OBJECT (progress),
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"plug-in-progress-attach-count"));
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attach_count--;
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g_object_set_data (G_OBJECT (progress), "plug-in-progress-attach-count",
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GINT_TO_POINTER (attach_count));
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return attach_count;
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}
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void
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pika_plug_in_progress_start (PikaPlugIn *plug_in,
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const gchar *message,
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PikaDisplay *display)
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{
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PikaPlugInProcFrame *proc_frame;
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g_return_if_fail (PIKA_IS_PLUG_IN (plug_in));
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g_return_if_fail (display == NULL || PIKA_IS_DISPLAY (display));
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proc_frame = pika_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 = pika_new_progress (plug_in->manager->pika,
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display);
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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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pika_plug_in_progress_attach (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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{
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g_object_add_weak_pointer (G_OBJECT (proc_frame->progress),
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(gpointer) &proc_frame->progress);
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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 (pika_plug_in_progress_cancel_callback),
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plug_in);
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}
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if (pika_progress_is_active (proc_frame->progress))
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{
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if (message)
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pika_progress_set_text_literal (proc_frame->progress, message);
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if (pika_progress_get_value (proc_frame->progress) > 0.0)
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pika_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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pika_progress_start (proc_frame->progress, TRUE,
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"%s", message ? message : "");
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}
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}
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}
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void
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pika_plug_in_progress_end (PikaPlugIn *plug_in,
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PikaPlugInProcFrame *proc_frame)
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{
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g_return_if_fail (PIKA_IS_PLUG_IN (plug_in));
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g_return_if_fail (proc_frame != NULL);
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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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g_object_remove_weak_pointer (G_OBJECT (proc_frame->progress),
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(gpointer) &proc_frame->progress);
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}
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if (pika_plug_in_progress_detach (proc_frame->progress) < 1 &&
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pika_progress_is_active (proc_frame->progress))
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{
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pika_progress_end (proc_frame->progress);
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}
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if (proc_frame->progress_created)
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{
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pika_free_progress (plug_in->manager->pika, proc_frame->progress);
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g_clear_object (&proc_frame->progress);
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}
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}
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}
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void
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pika_plug_in_progress_set_text (PikaPlugIn *plug_in,
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const gchar *message)
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{
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PikaPlugInProcFrame *proc_frame;
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g_return_if_fail (PIKA_IS_PLUG_IN (plug_in));
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proc_frame = pika_plug_in_get_proc_frame (plug_in);
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if (proc_frame->progress)
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pika_progress_set_text_literal (proc_frame->progress, message);
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}
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void
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pika_plug_in_progress_set_value (PikaPlugIn *plug_in,
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gdouble percentage)
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{
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PikaPlugInProcFrame *proc_frame;
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g_return_if_fail (PIKA_IS_PLUG_IN (plug_in));
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proc_frame = pika_plug_in_get_proc_frame (plug_in);
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if (! proc_frame->progress ||
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! pika_progress_is_active (proc_frame->progress) ||
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! proc_frame->progress_cancel_id)
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{
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pika_plug_in_progress_start (plug_in, NULL, NULL);
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}
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if (proc_frame->progress && pika_progress_is_active (proc_frame->progress))
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pika_progress_set_value (proc_frame->progress, percentage);
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}
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void
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pika_plug_in_progress_pulse (PikaPlugIn *plug_in)
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{
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PikaPlugInProcFrame *proc_frame;
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g_return_if_fail (PIKA_IS_PLUG_IN (plug_in));
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proc_frame = pika_plug_in_get_proc_frame (plug_in);
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if (! proc_frame->progress ||
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! pika_progress_is_active (proc_frame->progress) ||
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! proc_frame->progress_cancel_id)
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{
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pika_plug_in_progress_start (plug_in, NULL, NULL);
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}
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if (proc_frame->progress && pika_progress_is_active (proc_frame->progress))
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pika_progress_pulse (proc_frame->progress);
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}
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guint32
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pika_plug_in_progress_get_window_id (PikaPlugIn *plug_in)
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{
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PikaPlugInProcFrame *proc_frame;
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g_return_val_if_fail (PIKA_IS_PLUG_IN (plug_in), 0);
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proc_frame = pika_plug_in_get_proc_frame (plug_in);
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if (proc_frame->progress)
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return pika_progress_get_window_id (proc_frame->progress);
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return 0;
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}
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gboolean
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pika_plug_in_progress_install (PikaPlugIn *plug_in,
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const gchar *progress_callback)
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{
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PikaPlugInProcFrame *proc_frame;
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PikaProcedure *procedure;
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g_return_val_if_fail (PIKA_IS_PLUG_IN (plug_in), FALSE);
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g_return_val_if_fail (progress_callback != NULL, FALSE);
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procedure = pika_pdb_lookup_procedure (plug_in->manager->pika->pdb,
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progress_callback);
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if (! PIKA_IS_TEMPORARY_PROCEDURE (procedure) ||
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PIKA_TEMPORARY_PROCEDURE (procedure)->plug_in != plug_in ||
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procedure->num_args != 3 ||
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! G_IS_PARAM_SPEC_INT (procedure->args[0]) ||
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! G_IS_PARAM_SPEC_STRING (procedure->args[1]) ||
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! G_IS_PARAM_SPEC_DOUBLE (procedure->args[2]))
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{
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return FALSE;
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}
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proc_frame = pika_plug_in_get_proc_frame (plug_in);
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if (proc_frame->progress)
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{
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pika_plug_in_progress_end (plug_in, proc_frame);
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g_clear_object (&proc_frame->progress);
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}
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proc_frame->progress = g_object_new (PIKA_TYPE_PDB_PROGRESS,
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"pdb", plug_in->manager->pika->pdb,
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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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pika_plug_in_progress_attach (proc_frame->progress);
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return TRUE;
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}
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gboolean
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pika_plug_in_progress_uninstall (PikaPlugIn *plug_in,
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const gchar *progress_callback)
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{
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PikaPlugInProcFrame *proc_frame;
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g_return_val_if_fail (PIKA_IS_PLUG_IN (plug_in), FALSE);
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g_return_val_if_fail (progress_callback != NULL, FALSE);
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proc_frame = pika_plug_in_get_proc_frame (plug_in);
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if (PIKA_IS_PDB_PROGRESS (proc_frame->progress))
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{
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pika_plug_in_progress_end (plug_in, proc_frame);
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g_clear_object (&proc_frame->progress);
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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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pika_plug_in_progress_cancel (PikaPlugIn *plug_in,
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const gchar *progress_callback)
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{
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g_return_val_if_fail (PIKA_IS_PLUG_IN (plug_in), 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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/* private functions */
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static PikaValueArray *
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get_cancel_return_values (PikaProcedure *procedure)
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{
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PikaValueArray *return_vals;
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GError *error;
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error = g_error_new_literal (PIKA_PDB_ERROR, PIKA_PDB_ERROR_CANCELLED,
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_("Cancelled"));
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return_vals = pika_procedure_get_return_values (procedure, FALSE, error);
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g_error_free (error);
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return return_vals;
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}
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static void
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pika_plug_in_progress_cancel_callback (PikaProgress *progress,
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PikaPlugIn *plug_in)
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{
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PikaPlugInProcFrame *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 =
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get_cancel_return_values (proc_frame->procedure);
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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 =
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get_cancel_return_values (proc_frame->procedure);
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}
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}
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pika_plug_in_close (plug_in, TRUE);
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}
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