[baobab/wip/vala: 51/53] Implement a custom widget for showing a volume

[Paolo Borelli <pborelli src gnome org>]

commit 138f66249360355cec30bc59d967393c14a8c85d
Author: Stefano Facchini <stefano facchini gmail com>
Date:   Thu Apr 5 21:00:20 2012 +0200

    Implement a custom widget for showing a volume

 src/baobab-location-widget.vala |   95 +++++++++++++++++++++++++++++++++++++++
 1 files changed, 95 insertions(+), 0 deletions(-)
---
diff --git a/src/baobab-location-widget.vala b/src/baobab-location-widget.vala
new file mode 100644
index 0000000..a68e351
--- /dev/null
+++ b/src/baobab-location-widget.vala
@@ -0,0 +1,95 @@
+/* -*- indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* Baobab - disk usage analyzer
+ *
+ * Copyright (C) 2012  Stefano Facchini <stefano facchini gmail com>
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+namespace Baobab {
+    public class LocationWidget : Gtk.Grid {
+        private static Gtk.SizeGroup name_size_group = null;
+        private static Gtk.SizeGroup mount_point_size_group = null;
+        private static Gtk.SizeGroup size_size_group = null;
+        private static Gtk.SizeGroup used_size_group = null;
+        private static Gtk.SizeGroup button_size_group = null;
+
+        public delegate void ActionOnClick (Location location);
+
+        void ensure_size_groups () {
+            if (name_size_group != null)
+                return;
+
+            name_size_group = new Gtk.SizeGroup (Gtk.SizeGroupMode.HORIZONTAL);
+            mount_point_size_group = new Gtk.SizeGroup (Gtk.SizeGroupMode.HORIZONTAL);
+            size_size_group = new Gtk.SizeGroup (Gtk.SizeGroupMode.HORIZONTAL);
+            used_size_group = new Gtk.SizeGroup (Gtk.SizeGroupMode.HORIZONTAL);
+            button_size_group = new Gtk.SizeGroup (Gtk.SizeGroupMode.HORIZONTAL);
+        }
+
+        public LocationWidget (Location location, ActionOnClick action) {
+            orientation = Gtk.Orientation.HORIZONTAL;
+            column_spacing = 10;
+            margin = 6;
+
+            ensure_size_groups ();
+
+            var icon_theme = Gtk.IconTheme.get_default ();
+            var icon_info = icon_theme.lookup_by_gicon (location.icon, 64, 0);
+            var pixbuf = icon_info.load_icon ();
+            var image = new Gtk.Image.from_pixbuf (pixbuf);
+            add (image);
+
+            var label = new Gtk.Label (location.name);
+            label.xalign = 0;
+            name_size_group.add_widget (label);
+            add (label);
+
+            label = new Gtk.Label (location.mount_point != null ? location.mount_point : "");
+            label.hexpand = true;
+            label.halign = Gtk.Align.CENTER;
+            label.xalign = 0;
+            label.get_style_context ().add_class ("dim-label");
+            mount_point_size_group.add_widget (label);
+            add (label);
+
+            label = new Gtk.Label (location.size != null ? format_size (location.size) : "");
+            size_size_group.add_widget (label);
+            add (label);
+
+            if (location.used != null) {
+                var progress = new Gtk.ProgressBar ();
+                progress.valign = Gtk.Align.CENTER;
+                progress.set_fraction ((double) location.used / location.size);
+                used_size_group.add_widget (progress);
+                add (progress);
+            } else {
+                label = new Gtk.Label (_("Usage unknown"));
+                used_size_group.add_widget (label);
+                add (label);
+            }
+
+            string button_label = location.mount_point != null ? _("Scan") : _("Mount and scan");
+            var button = new Gtk.Button.with_label (button_label);
+            button.valign = Gtk.Align.CENTER;
+            button_size_group.add_widget (button);
+            add (button);
+
+            button.clicked.connect(() => { action (location); });
+
+            show_all ();
+        }
+    }
+}