Add first steps of relations editor widget.

src/relations-editor.vala

@@ -0,0 +1,61 @@
+/* -*- Mode: vala; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*-  */
+/*
+ * relations-editor.vala
+ * Copyright (C) 2014 Marcus Lundblad <[email protected]>
+ *
+ * tabler 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 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * tabler 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/>.
+ */
+
+public class Tabler.RelationsEditor : Gtk.Grid {
+
+	public Arrangement arrangement { get; set; }
+
+	public RelationsEditor () {
+	}
+
+	// update the grid widget widget with a new arrangement
+	public void update_arrangement () {
+		stdout.printf ("new arrangement set in relations editor\n");
+
+		arrangement.guest_added.connect (on_guest_added);
+		arrangement.guest_removed.connect (on_guest_removed);
+
+		int i = 1;
+		foreach (var guest in arrangement.guests.values) {
+			var horizontal_label = new Gtk.Label (guest.name);
+			var vertical_label = new Gtk.Label (guest.name);
+
+			horizontal_label.xalign = 0;
+
+			vertical_label.angle = 90;
+			vertical_label.yalign = 1.0f;
+
+			attach (horizontal_label, 0, i, 1, 1);
+			attach (vertical_label, i, 0, 1, 1);
+			horizontal_label.visible = true;
+			vertical_label.visible = true;
+			i++;
+		}
+	}
+
+	private void on_guest_added (Guest guest) {
+		stderr.printf ("Guest added %s\n", guest.name);
+	}
+
+	private void on_guest_removed (Guest guest) {
+	    stderr.printf ("Guest removed\n");
+	}
+
+}
+