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/* 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 3 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, see
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "gimpuitypes.h"
#include "gimp.h"
#include "gimpprogressbar.h"
/**
* SECTION: gimpprogressbar
* @title: GimpProgressBar
* @short_description: A widget providing a progress bar.
*
* A widget providing a progress bar that automatically redirects any
* progress calls to itself.
**/
struct _GimpProgressBar
{
GtkProgressBar parent_instance;
const gchar *progress_callback;
GBytes *window_handle;
};
static void gimp_progress_bar_dispose (GObject *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 void gimp_progress_bar_pulse (gpointer user_data);
static GBytes * gimp_progress_bar_get_window_handle (gpointer user_data);
G_DEFINE_TYPE (GimpProgressBar, gimp_progress_bar, GTK_TYPE_PROGRESS_BAR)
#define parent_class gimp_progress_bar_parent_class
static void
gimp_progress_bar_class_init (GimpProgressBarClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->dispose = gimp_progress_bar_dispose;
}
static void
gimp_progress_bar_init (GimpProgressBar *bar)
{
GimpProgressVtable vtable = { 0, };
gtk_progress_bar_set_text (GTK_PROGRESS_BAR (bar), " ");
gtk_progress_bar_set_ellipsize (GTK_PROGRESS_BAR (bar), PANGO_ELLIPSIZE_END);
vtable.start = gimp_progress_bar_start;
vtable.end = gimp_progress_bar_end;
vtable.set_text = gimp_progress_bar_set_text;
vtable.set_value = gimp_progress_bar_set_value;
vtable.pulse = gimp_progress_bar_pulse;
vtable.get_window_handle = gimp_progress_bar_get_window_handle;
bar->progress_callback = gimp_progress_install_vtable (&vtable, bar, NULL);
gimp_widget_set_native_handle (GTK_WIDGET (bar), &bar->window_handle);
}
static void
gimp_progress_bar_dispose (GObject *object)
{
GimpProgressBar *bar = GIMP_PROGRESS_BAR (object);
if (bar->progress_callback)
{
gimp_progress_uninstall (bar->progress_callback);
bar->progress_callback = NULL;
}
gimp_widget_free_native_handle (GTK_WIDGET (bar), &bar->window_handle);
G_OBJECT_CLASS (parent_class)->dispose (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_is_drawable (GTK_WIDGET (bar)))
while (gtk_events_pending ())
gtk_main_iteration ();
}
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_is_drawable (GTK_WIDGET (bar)))
while (gtk_events_pending ())
gtk_main_iteration ();
}
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_is_drawable (GTK_WIDGET (bar)))
while (gtk_events_pending ())
gtk_main_iteration ();
}
static void
gimp_progress_bar_set_value (gdouble percentage,
gpointer user_data)
{
GimpProgressBar *bar = GIMP_PROGRESS_BAR (user_data);
if (percentage >= 0.0)
gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (bar), percentage);
else
gtk_progress_bar_pulse (GTK_PROGRESS_BAR (bar));
if (gtk_widget_is_drawable (GTK_WIDGET (bar)))
while (gtk_events_pending ())
gtk_main_iteration ();
}
static void
gimp_progress_bar_pulse (gpointer user_data)
{
GimpProgressBar *bar = GIMP_PROGRESS_BAR (user_data);
gtk_progress_bar_pulse (GTK_PROGRESS_BAR (bar));
if (gtk_widget_is_drawable (GTK_WIDGET (bar)))
while (gtk_events_pending ())
gtk_main_iteration ();
}
static GBytes *
gimp_progress_bar_get_window_handle (gpointer user_data)
{
GimpProgressBar *bar = GIMP_PROGRESS_BAR (user_data);
return g_bytes_ref (bar->window_handle);
}
/**
* gimp_progress_bar_new:
*
* Creates a new #GimpProgressBar widget.
*
* Returns: the new widget.
*
* Since: 2.2
**/
GtkWidget *
gimp_progress_bar_new (void)
{
return g_object_new (GIMP_TYPE_PROGRESS_BAR, NULL);
}
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