--- a/doodle/cairo/routines.d	Sun Aug 30 23:39:04 2009 +0930
+++ b/doodle/cairo/routines.d	Sun Sep 27 22:51:03 2009 +0930
@@ -14,3 +14,15 @@
     cr.moveTo(x0, y0);
     cr.lineTo(x1, y1);
 }
+
+// Horizontal line
+void hline(scope Context cr, in double y, double x0, double x1) {
+    cr.moveTo(x0, y);
+    cr.lineTo(x1, y);
+}
+
+// Vertical line
+void vline(scope Context cr, in double x, double y0, double y1) {
+    cr.moveTo(x, y0);
+    cr.lineTo(x, y1);
+}