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gimp/app/plug-in/gimpplugin-progress.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpplugin-progress.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 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 <glib-object.h>
#include "plug-in-types.h"
#include "core/gimp.h"
#include "core/gimpparamspecs.h"
#include "core/gimppdbprogress.h"
#include "core/gimpprogress.h"
#include "pdb/gimppdb.h"
#include "pdb/gimppdberror.h"
#include "gimpplugin.h"
#include "gimpplugin-progress.h"
#include "gimppluginmanager.h"
#include "gimptemporaryprocedure.h"
#include "gimp-intl.h"
/* local function prototypes */
static void gimp_plug_in_progress_cancel_callback (GimpProgress *progress,
GimpPlugIn *plug_in);
/* public functions */
gint
gimp_plug_in_progress_attach (GimpProgress *progress)
{
gint attach_count;
g_return_val_if_fail (GIMP_IS_PROGRESS (progress), 0);
attach_count =
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (progress),
"plug-in-progress-attach-count"));
attach_count++;
g_object_set_data (G_OBJECT (progress), "plug-in-progress-attach-count",
GINT_TO_POINTER (attach_count));;
return attach_count;
}
gint
gimp_plug_in_progress_detach (GimpProgress *progress)
{
gint attach_count;
g_return_val_if_fail (GIMP_IS_PROGRESS (progress), 0);
attach_count =
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (progress),
"plug-in-progress-attach-count"));
attach_count--;
g_object_set_data (G_OBJECT (progress), "plug-in-progress-attach-count",
GINT_TO_POINTER (attach_count));;
return attach_count;
}
void
gimp_plug_in_progress_start (GimpPlugIn *plug_in,
const gchar *message,
GimpObject *display)
{
GimpPlugInProcFrame *proc_frame;
g_return_if_fail (GIMP_IS_PLUG_IN (plug_in));
g_return_if_fail (display == NULL || GIMP_IS_OBJECT (display));
proc_frame = gimp_plug_in_get_proc_frame (plug_in);
if (! proc_frame->progress)
{
proc_frame->progress = gimp_new_progress (plug_in->manager->gimp,
display);
if (proc_frame->progress)
{
proc_frame->progress_created = TRUE;
g_object_ref (proc_frame->progress);
gimp_plug_in_progress_attach (proc_frame->progress);
}
}
if (proc_frame->progress)
{
if (! proc_frame->progress_cancel_id)
proc_frame->progress_cancel_id =
g_signal_connect (proc_frame->progress, "cancel",
G_CALLBACK (gimp_plug_in_progress_cancel_callback),
plug_in);
if (gimp_progress_is_active (proc_frame->progress))
{
if (message)
gimp_progress_set_text (proc_frame->progress, message);
if (gimp_progress_get_value (proc_frame->progress) > 0.0)
gimp_progress_set_value (proc_frame->progress, 0.0);
}
else
{
gimp_progress_start (proc_frame->progress,
message ? message : "",
TRUE);
}
}
}
void
gimp_plug_in_progress_end (GimpPlugIn *plug_in,
GimpPlugInProcFrame *proc_frame)
{
g_return_if_fail (GIMP_IS_PLUG_IN (plug_in));
g_return_if_fail (proc_frame != NULL);
if (proc_frame->progress)
{
if (proc_frame->progress_cancel_id)
{
g_signal_handler_disconnect (proc_frame->progress,
proc_frame->progress_cancel_id);
proc_frame->progress_cancel_id = 0;
}
if (gimp_plug_in_progress_detach (proc_frame->progress) < 1 &&
gimp_progress_is_active (proc_frame->progress))
gimp_progress_end (proc_frame->progress);
if (proc_frame->progress_created)
{
gimp_free_progress (plug_in->manager->gimp, proc_frame->progress);
g_object_unref (proc_frame->progress);
proc_frame->progress = NULL;
}
}
}
void
gimp_plug_in_progress_set_text (GimpPlugIn *plug_in,
const gchar *message)
{
GimpPlugInProcFrame *proc_frame;
g_return_if_fail (GIMP_IS_PLUG_IN (plug_in));
proc_frame = gimp_plug_in_get_proc_frame (plug_in);
if (proc_frame->progress)
gimp_progress_set_text (proc_frame->progress, message);
}
void
gimp_plug_in_progress_set_value (GimpPlugIn *plug_in,
gdouble percentage)
{
GimpPlugInProcFrame *proc_frame;
g_return_if_fail (GIMP_IS_PLUG_IN (plug_in));
proc_frame = gimp_plug_in_get_proc_frame (plug_in);
if (! proc_frame->progress ||
! gimp_progress_is_active (proc_frame->progress) ||
! proc_frame->progress_cancel_id)
{
gimp_plug_in_progress_start (plug_in, NULL, NULL);
}
if (proc_frame->progress && gimp_progress_is_active (proc_frame->progress))
gimp_progress_set_value (proc_frame->progress, percentage);
}
void
gimp_plug_in_progress_pulse (GimpPlugIn *plug_in)
{
GimpPlugInProcFrame *proc_frame;
g_return_if_fail (GIMP_IS_PLUG_IN (plug_in));
proc_frame = gimp_plug_in_get_proc_frame (plug_in);
if (! proc_frame->progress ||
! gimp_progress_is_active (proc_frame->progress) ||
! proc_frame->progress_cancel_id)
{
gimp_plug_in_progress_start (plug_in, NULL, NULL);
}
if (proc_frame->progress && gimp_progress_is_active (proc_frame->progress))
gimp_progress_pulse (proc_frame->progress);
}
guint32
gimp_plug_in_progress_get_window (GimpPlugIn *plug_in)
{
GimpPlugInProcFrame *proc_frame;
g_return_val_if_fail (GIMP_IS_PLUG_IN (plug_in), 0);
proc_frame = gimp_plug_in_get_proc_frame (plug_in);
if (proc_frame->progress)
return gimp_progress_get_window (proc_frame->progress);
return 0;
}
gboolean
gimp_plug_in_progress_install (GimpPlugIn *plug_in,
const gchar *progress_callback)
{
GimpPlugInProcFrame *proc_frame;
GimpProcedure *procedure;
g_return_val_if_fail (GIMP_IS_PLUG_IN (plug_in), FALSE);
g_return_val_if_fail (progress_callback != NULL, FALSE);
procedure = gimp_pdb_lookup_procedure (plug_in->manager->gimp->pdb,
progress_callback);
if (! GIMP_IS_TEMPORARY_PROCEDURE (procedure) ||
GIMP_TEMPORARY_PROCEDURE (procedure)->plug_in != plug_in ||
procedure->num_args != 3 ||
! GIMP_IS_PARAM_SPEC_INT32 (procedure->args[0]) ||
! G_IS_PARAM_SPEC_STRING (procedure->args[1]) ||
! G_IS_PARAM_SPEC_DOUBLE (procedure->args[2]))
{
return FALSE;
}
proc_frame = gimp_plug_in_get_proc_frame (plug_in);
if (proc_frame->progress)
{
gimp_plug_in_progress_end (plug_in, proc_frame);
if (proc_frame->progress)
{
g_object_unref (proc_frame->progress);
proc_frame->progress = NULL;
}
}
proc_frame->progress = g_object_new (GIMP_TYPE_PDB_PROGRESS,
"pdb", plug_in->manager->gimp->pdb,
"context", proc_frame->main_context,
"callback-name", progress_callback,
NULL);
gimp_plug_in_progress_attach (proc_frame->progress);
return TRUE;
}
gboolean
gimp_plug_in_progress_uninstall (GimpPlugIn *plug_in,
const gchar *progress_callback)
{
GimpPlugInProcFrame *proc_frame;
g_return_val_if_fail (GIMP_IS_PLUG_IN (plug_in), FALSE);
g_return_val_if_fail (progress_callback != NULL, FALSE);
proc_frame = gimp_plug_in_get_proc_frame (plug_in);
if (GIMP_IS_PDB_PROGRESS (proc_frame->progress))
{
gimp_plug_in_progress_end (plug_in, proc_frame);
g_object_unref (proc_frame->progress);
proc_frame->progress = NULL;
return TRUE;
}
return FALSE;
}
gboolean
gimp_plug_in_progress_cancel (GimpPlugIn *plug_in,
const gchar *progress_callback)
{
g_return_val_if_fail (GIMP_IS_PLUG_IN (plug_in), FALSE);
g_return_val_if_fail (progress_callback != NULL, FALSE);
return FALSE;
}
/* private functions */
static GValueArray *
get_cancel_return_values (GimpProcedure *procedure)
{
GValueArray *return_vals;
GError *error;
error = g_error_new_literal (GIMP_PDB_ERROR, GIMP_PDB_CANCELLED,
_("Cancelled"));
return_vals = gimp_procedure_get_return_values (procedure, FALSE, error);
g_error_free (error);
return return_vals;
}
static void
gimp_plug_in_progress_cancel_callback (GimpProgress *progress,
GimpPlugIn *plug_in)
{
GimpPlugInProcFrame *proc_frame = &plug_in->main_proc_frame;
GList *list;
if (proc_frame->main_loop)
{
proc_frame->return_vals =
get_cancel_return_values (proc_frame->procedure);
}
for (list = plug_in->temp_proc_frames; list; list = g_list_next (list))
{
proc_frame = list->data;
if (proc_frame->main_loop)
{
proc_frame->return_vals =
get_cancel_return_values (proc_frame->procedure);
}
}
gimp_plug_in_close (plug_in, TRUE);
}
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