Add color selection to all holes

All methods that uses the holeCol decorator now take a parameter color.
Added semantic symbols for colors.

boxes/Color.py

@@ -4,3 +4,9 @@ class Color:
     GREEN = [ 0.0, 1.0, 0.0 ]
     RED   = [ 1.0, 0.0, 0.0 ]
     WHITE = [ 1.0, 1.0, 1.0 ]
+
+    # TODO: Make this configurable
+    OUTER_CUT = BLACK
+    INNER_CUT = BLUE
+    ANNOTATIONS = RED
+    ETCHING = GREEN

boxes/__init__.py

@@ -72,9 +72,14 @@ def holeCol(func):
 
     @wraps(func)
     def f(self, *args, **kw):
+        if "color" in kw:
+            color = kw.pop("color")
+        else:
+            color = Color.INNER_CUT
+
         self.ctx.stroke()
         with self.saved_context():
-            self.set_source_color(Color.BLUE)
+            self.set_source_color(color)
             func(self, *args, **kw)
             self.ctx.stroke()
 

boxes/generators/drillbox.py

@@ -66,8 +66,7 @@ class DrillBox(Boxes):
                 for k in range(self.holes):
                     self.hole(x + dx / 2, y + (k + 0.5) * iy, d + 0.05)
                 if description:
-                    self.rectangularHole(x + dx / 2, y + dy / 2, dx - 2, dy - 2)
-                    # TODO: make the "hole" green to indicate etching
+                    self.rectangularHole(x + dx / 2, y + dy / 2, dx - 2, dy - 2, color=Color.ETCHING)
                     self.text(
                         "%.1f" % d,
                         x + 2,
@@ -75,7 +74,7 @@ class DrillBox(Boxes):
                         270,
                         align="right",
                         fontsize=6,
-                        color=Color.GREEN,
+                        color=Color.ETCHING,
                     )
                     # TODO: make the fontsize dynamic to make the text fit in all cases
                 d += self.holeincrement

documentation/src/usermanual.rst

@@ -147,3 +147,20 @@ settings to the user. In the web interface they are folded up. In the
 command line interfacce they are grouped together. Users should be
 aware that not all settings are practical to change. For now Boxes.py
 does not allow hiding some settings.
+
+Colors
+------
+The generated files uses the following color conventions:
+
+.. glossary::
+     Black 
+        The outer edges of a part
+     Blue
+        Inner edges of a part
+     Red
+        Comments or help lines that are not ment to be cut or etched
+     Green
+        Etchings
+
+Normaly you will cut things in the order: Green, Blue, Black. If other 
+colors are present, the meaning should hopefully be obvious.