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-rw-r--r--libgimp/gimpprogressbar.c230
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diff --git a/libgimp/gimpprogressbar.c b/libgimp/gimpprogressbar.c
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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 <gtk/gtk.h>
+
+#ifdef GDK_WINDOWING_WIN32
+#include <gdk/gdkwin32.h>
+#endif
+
+#ifdef GDK_WINDOWING_X11
+#include <gdk/gdkx.h>
+#endif
+
+#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.
+ **/
+
+
+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 guint32 gimp_progress_bar_get_window (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 = gimp_progress_bar_get_window;
+
+ bar->progress_callback = gimp_progress_install_vtable (&vtable, bar);
+}
+
+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;
+ }
+
+ 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 guint32
+gimp_window_get_native_id (GtkWindow *window)
+{
+ g_return_val_if_fail (GTK_IS_WINDOW (window), 0);
+
+#ifdef GDK_NATIVE_WINDOW_POINTER
+#ifdef __GNUC__
+#warning gimp_window_get_native() unimplementable for the target windowing system
+#endif
+#endif
+
+#ifdef GDK_WINDOWING_WIN32
+ if (window && gtk_widget_get_realized (GTK_WIDGET (window)))
+ return GDK_WINDOW_HWND (gtk_widget_get_window (GTK_WIDGET (window)));
+#endif
+
+#ifdef GDK_WINDOWING_X11
+ if (window && gtk_widget_get_realized (GTK_WIDGET (window)))
+ return GDK_WINDOW_XID (gtk_widget_get_window (GTK_WIDGET (window)));
+#endif
+
+ return 0;
+}
+
+static guint32
+gimp_progress_bar_get_window (gpointer user_data)
+{
+ GimpProgressBar *bar = GIMP_PROGRESS_BAR (user_data);
+ GtkWidget *toplevel;
+
+ toplevel = gtk_widget_get_toplevel (GTK_WIDGET (bar));
+
+ if (GTK_IS_WINDOW (toplevel))
+ return gimp_window_get_native_id (GTK_WINDOW (toplevel));
+
+ return 0;
+}
+
+/**
+ * gimp_progress_bar_new:
+ *
+ * Creates a new #GimpProgressBar widget.
+ *
+ * Return value: 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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