added ag::getTextSize(), varying text size demo in tests/cratestack.lua

git-svn-id: svn://anubis/anaglym/trunk@165 99a6e188-d820-4881-8870-2d33a10e2619

tests/cratestack.lua

@@ -44,5 +44,13 @@ function mouse_moves(x, y, xrel, yrel)
 end
 
 function update_overlay_event()
-    ag.drawText("Hi there everyone!", 1, 0.7, 0, 16, 0, 0)
+    y = 4
+    size = 16
+    for i = 0, 17 do
+        local message = "Hello there"
+        local width, height = ag.getTextSize(message, size)
+        ag.drawText(message, 1, 0.7, 0, size, 2, y)
+        y = y + height + 4
+        size = size + 4
+    end
 end