Implemented an Evolution::Activity interface for keeping track of

background tasks.  The Activity interface is added to the shell, and
the status of the various tasks is now displayed in a task bar widget
at the bottom of the EShellView.

I also implemented a simple test component to test all this stuff.

svn path=/trunk/; revision=10434

1 files changed, 154 insertions, 0 deletions

diff --git a/shell/e-task-bar.c b/shell/e-task-bar.c
new file mode 100644
index 0000000000..efc552f661
--- /dev/null
+++ b/shell/e-task-bar.c
@@ -0,0 +1,154 @@
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
+/* e-task-bar.c
+ *
+ * Copyright (C) 2001  Ximian, Inc.
+ *
+ * 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.
+ *
+ * Author: Ettore Perazzoli <ettore@ximian.com>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "e-task-bar.h"
+
+#include <gal/util/e-util.h>
+
+
+#define PARENT_TYPE gtk_hbox_get_type ()
+static GtkHBoxClass *parent_class = NULL;
+
+
+/* GtkObject methods.  */
+
+static void
+impl_destroy (GtkObject *object)
+{
+	ETaskBar *task_bar;
+
+	task_bar = E_TASK_BAR (object);
+
+	/* Nothing to do here.  */
+
+	(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
+}
+
+
+static void
+class_init (GtkObjectClass *object_class)
+{
+	parent_class = gtk_type_class (PARENT_TYPE);
+
+	object_class->destroy = impl_destroy;
+}
+
+static void
+init (ETaskBar *task_bar)
+{
+	/* Nothing to do here.  */
+}
+
+
+void
+e_task_bar_construct (ETaskBar *task_bar)
+{
+	g_return_if_fail (task_bar != NULL);
+	g_return_if_fail (E_IS_TASK_BAR (task_bar));
+
+	/* Nothing to do here.  */
+}
+
+GtkWidget *
+e_task_bar_new (void)
+{
+	ETaskBar *task_bar;
+
+	task_bar = gtk_type_new (e_task_bar_get_type ());
+	e_task_bar_construct (task_bar);
+
+	return GTK_WIDGET (task_bar);
+}
+
+void
+e_task_bar_prepend_task (ETaskBar *task_bar,
+			 ETaskWidget *task_widget)
+{
+	GtkBoxChild *child_info;
+	GtkBox *box;
+
+	g_return_if_fail (task_bar != NULL);
+	g_return_if_fail (E_IS_TASK_BAR (task_bar));
+	g_return_if_fail (task_widget != NULL);
+	g_return_if_fail (E_IS_TASK_WIDGET (task_widget));
+
+	/* Hah hah.  GTK+ sucks.  This is adapted from `gtkhbox.c'.  */
+
+	child_info = g_new (GtkBoxChild, 1);
+	child_info->widget = GTK_WIDGET (task_widget);
+	child_info->padding = 0;
+	child_info->expand = TRUE;
+	child_info->fill = TRUE;
+	child_info->pack = GTK_PACK_START;
+
+	box = GTK_BOX (task_bar);
+
+	box->children = g_list_append (box->children, child_info);
+
+	gtk_widget_set_parent (GTK_WIDGET (task_widget), GTK_WIDGET (task_bar));
+
+	if (GTK_WIDGET_REALIZED (task_bar))
+		gtk_widget_realize (GTK_WIDGET (task_widget));
+
+	if (GTK_WIDGET_VISIBLE (task_bar) && GTK_WIDGET_VISIBLE (task_widget)) {
+		if (GTK_WIDGET_MAPPED (task_bar))
+			gtk_widget_map (GTK_WIDGET (task_widget));
+		gtk_widget_queue_resize (GTK_WIDGET (task_widget));
+	}
+}
+
+void
+e_task_bar_remove_task (ETaskBar *task_bar,
+			int n)
+{
+	ETaskWidget *task_widget;
+
+	g_return_if_fail (task_bar != NULL);
+	g_return_if_fail (E_IS_TASK_BAR (task_bar));
+	g_return_if_fail (n >= 0);
+
+	task_widget = e_task_bar_get_task_widget (task_bar, n);
+
+	gtk_container_remove (GTK_CONTAINER (task_bar), GTK_WIDGET (task_widget));
+}
+	
+ETaskWidget *
+e_task_bar_get_task_widget (ETaskBar *task_bar,
+			    int n)
+{
+	GtkBoxChild *child_info;
+
+	g_return_val_if_fail (task_bar != NULL, NULL);
+	g_return_val_if_fail (E_IS_TASK_BAR (task_bar), NULL);
+
+	child_info = (GtkBoxChild *) g_list_nth (GTK_BOX (task_bar)->children, n)->data;
+
+	return E_TASK_WIDGET (child_info->widget);
+}
+
+
+E_MAKE_TYPE (e_task_bar, "ETaskBar", ETaskBar, class_init, init, PARENT_TYPE)