gimp/libgimp/gimpprogressbar.c

184 lines
5.4 KiB
C

/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimpprogressbar.c
* Copyright (C) 2004 Michael Natterer <mitch@gimp.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "gimpuitypes.h"
#include "gimp.h"
#include "gimpprogressbar.h"
static void gimp_progress_bar_class_init (GimpProgressBarClass *klass);
static void gimp_progress_bar_init (GimpProgressBar *bar);
static void gimp_progress_bar_destroy (GtkObject *object);
static void gimp_progress_bar_start (const gchar *message,
gboolean cancelable,
gpointer user_data);
static void gimp_progress_bar_end (gpointer user_data);
static void gimp_progress_bar_set_text (const gchar *message,
gpointer user_data);
static void gimp_progress_bar_set_value (gdouble percentage,
gpointer user_data);
static GtkProgressBarClass *parent_class = NULL;
GType
gimp_progress_bar_get_type (void)
{
static GType bar_type = 0;
if (! bar_type)
{
static const GTypeInfo bar_info =
{
sizeof (GimpProgressBarClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_progress_bar_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpProgressBar),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_progress_bar_init,
};
bar_type = g_type_register_static (GTK_TYPE_PROGRESS_BAR,
"GimpProgressBar",
&bar_info, 0);
}
return bar_type;
}
static void
gimp_progress_bar_class_init (GimpProgressBarClass *klass)
{
GtkObjectClass *object_class = GTK_OBJECT_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->destroy = gimp_progress_bar_destroy;
}
static void
gimp_progress_bar_init (GimpProgressBar *bar)
{
gtk_progress_bar_set_text (GTK_PROGRESS_BAR (bar), " ");
bar->progress_callback = gimp_progress_install (gimp_progress_bar_start,
gimp_progress_bar_end,
gimp_progress_bar_set_text,
gimp_progress_bar_set_value,
bar);
}
static void
gimp_progress_bar_destroy (GtkObject *object)
{
GimpProgressBar *bar = GIMP_PROGRESS_BAR (object);
if (bar->progress_callback)
{
gimp_progress_uninstall (bar->progress_callback);
bar->progress_callback = NULL;
}
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
static void
gimp_progress_bar_start (const gchar *message,
gboolean cancelable,
gpointer user_data)
{
GimpProgressBar *bar = GIMP_PROGRESS_BAR (user_data);
gtk_progress_bar_set_text (GTK_PROGRESS_BAR (bar), message ? message : " ");
gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (bar), 0.0);
if (GTK_WIDGET_DRAWABLE (bar))
while (g_main_context_pending (NULL))
g_main_context_iteration (NULL, TRUE);
}
static void
gimp_progress_bar_end (gpointer user_data)
{
GimpProgressBar *bar = GIMP_PROGRESS_BAR (user_data);
gtk_progress_bar_set_text (GTK_PROGRESS_BAR (bar), " ");
gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (bar), 0.0);
if (GTK_WIDGET_DRAWABLE (bar))
while (g_main_context_pending (NULL))
g_main_context_iteration (NULL, TRUE);
}
static void
gimp_progress_bar_set_text (const gchar *message,
gpointer user_data)
{
GimpProgressBar *bar = GIMP_PROGRESS_BAR (user_data);
gtk_progress_bar_set_text (GTK_PROGRESS_BAR (bar), message ? message : " ");
if (GTK_WIDGET_DRAWABLE (bar))
while (g_main_context_pending (NULL))
g_main_context_iteration (NULL, TRUE);
}
static void
gimp_progress_bar_set_value (gdouble percentage,
gpointer user_data)
{
GimpProgressBar *bar = GIMP_PROGRESS_BAR (user_data);
gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (bar), percentage);
if (GTK_WIDGET_DRAWABLE (bar))
while (g_main_context_pending (NULL))
g_main_context_iteration (NULL, TRUE);
}
/**
* gimp_progress_bar_new:
*
* Creates a new #GimpProgressBar widget.
*
* Return value: the new widget.
*
* Since: GIMP 2.2
**/
GtkWidget *
gimp_progress_bar_new (void)
{
return g_object_new (GIMP_TYPE_PROGRESS_BAR, NULL);
}