Make projectlayer settings be HiddenSettings

pronsole.py

@@ -205,20 +205,20 @@ class Settings(object):
         self._add(StringSetting("sliceoptscommand", "python skeinforge/skeinforge_application/skeinforge.py", _("Slicer options command"), _("Slice settings command\n   default:\n       python skeinforge/skeinforge_application/skeinforge.py")))
         self._add(StringSetting("final_command", "", _("Final command"), _("Executable to run when the print is finished")))
 
-        self.project_offset_x = 0.0
-        self.project_offset_y = 0.0
-        self.project_interval = 2.0
-        self.project_pause = 2.5
-        self.project_scale = 1.0
-        self.project_x = 1024.0
-        self.project_y = 768.0
-        self.project_projected_x = 150.0
-        self.project_direction = "Top Down"
-        self.project_overshoot = 3.0
-        self.project_z_axis_rate = 200
-        self.project_layer = 0.1
-        self.project_prelift_gcode = ""
-        self.project_postlift_gcode = ""
+        self._add(HiddenSetting("project_offset_x", 0.0))
+        self._add(HiddenSetting("project_offset_y", 0.0))
+        self._add(HiddenSetting("project_interval", 2.0))
+        self._add(HiddenSetting("project_pause", 2.5))
+        self._add(HiddenSetting("project_scale", 1.0))
+        self._add(HiddenSetting("project_x", 1024.0))
+        self._add(HiddenSetting("project_y", 768.0))
+        self._add(HiddenSetting("project_projected_x", 150.0))
+        self._add(HiddenSetting("project_direction", "Top Down"))
+        self._add(HiddenSetting("project_overshoot", 3.0))
+        self._add(HiddenSetting("project_z_axis_rate", 200))
+        self._add(HiddenSetting("project_layer", 0.1))
+        self._add(HiddenSetting("project_prelift_gcode", ""))
+        self._add(HiddenSetting("project_postlift_gcode", ""))
 
     _settings = []
     def __setattr__(self, name, value):