1 files changed, 131 insertions, 0 deletions
diff --git a/src/toggle-box.vala b/src/toggle-box.vala
new file mode 100644
index 0000000..1862951
--- /dev/null
+++ b/src/toggle-box.vala
@@ -0,0 +1,131 @@
+/* -*- Mode: Vala; indent-tabs-mode: nil; tab-width: 4 -*-
+ *
+ * Copyright (C) 2012 Canonical Ltd
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors: Michael Terry <michael.terry@canonical.com>
+ */
+
+public class ToggleBox : Gtk.Box
+{
+    public string default_key {get; construct;}
+    public string starting_key {get; construct;}
+    public string selected_key {get; protected set;}
+
+    public ToggleBox (string? default_key, string? starting_key)
+    {
+        Object (default_key: default_key, starting_key: starting_key,
+                selected_key: starting_key);
+    }
+
+    public void add_item (string key, string label, Gdk.Pixbuf? icon)
+    {
+        var item = make_button (key, label, icon);
+
+        if (get_children () == null ||
+            (starting_key == null && default_key == key) ||
+            starting_key == key)
+            select (item);
+
+        item.show ();
+        add (item);
+    }
+
+    private Gtk.Button selected_button;
+
+    construct
+    {
+        orientation = Gtk.Orientation.VERTICAL;
+    }
+
+    public override bool draw (Cairo.Context c)
+    {
+        Gtk.Allocation allocation;
+        get_allocation (out allocation);
+
+        CairoUtils.rounded_rectangle (c, 0, 0, allocation.width,
+                                      allocation.height, 0.1 * grid_size);
+        c.set_source_rgba (0.5, 0.5, 0.5, 0.5);
+        c.set_line_width (1);
+        c.stroke ();
+
+        return base.draw (c);
+    }
+
+    private void select (Gtk.Button button)
+    {
+        if (selected_button != null)
+            selected_button.relief = Gtk.ReliefStyle.NONE;
+        selected_button = button;
+        selected_button.relief = Gtk.ReliefStyle.NORMAL;
+        selected_key = selected_button.get_data<string> ("toggle-list-key");
+    }
+
+    private Gtk.Button make_button (string key, string name_in, Gdk.Pixbuf? icon)
+    {
+        var item = new FlatButton ();
+        item.relief = Gtk.ReliefStyle.NONE;
+        item.clicked.connect (button_clicked_cb);
+
+        var hbox = new Gtk.Box (Gtk.Orientation.HORIZONTAL, 6);
+
+        if (icon != null)
+        {
+            var image = new CachedImage (icon);
+            hbox.pack_start (image, false, false, 0);
+        }
+
+        var name = name_in;
+        if (key == default_key)
+        {
+            /* Translators: %s is a session name like KDE or Ubuntu */
+            name = _("%s (Default)").printf (name);
+        }
+
+        var label = new Gtk.Label (null);
+        label.set_markup ("<span font=\"Ubuntu 13\">%s</span>".printf (name));
+        label.halign = Gtk.Align.START;
+        hbox.pack_start (label, true, true, 0);
+
+        item.hexpand = true;
+        item.add (hbox);
+        hbox.show_all ();
+
+        try
+        {
+            /* Tighten padding on buttons to not be so large */
+            var style = new Gtk.CssProvider ();
+            style.load_from_data ("* {padding: 8px;}", -1);
+            item.get_style_context ().add_provider (style, Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION);
+        }
+        catch (Error e)
+        {
+            debug ("Internal error loading session chooser style: %s", e.message);
+        }
+
+        item.set_data<string> ("toggle-list-key", key);
+        return item;
+    }
+
+    private void button_clicked_cb (Gtk.Button button)
+    {
+        selected_key = button.get_data<string> ("toggle-list-key");
+    }
+
+    public override void grab_focus ()
+    {
+        if (selected_button != null)
+            selected_button.grab_focus ();
+    }
+}