Add edges for a sliding lid

Add to top_edges and support in Box2

boxes/__init__.py

@@ -288,7 +288,7 @@ class Boxes:
             elif arg == "top_edge":
                 self.argparser.add_argument(
                     "--top_edge", action="store",
-                    type=ArgparseEdgeType("ecESikf"), choices=list("ecESikf"),
+                    type=ArgparseEdgeType("ecESikfL"), choices=list("ecESikfL"),
                     default="e", help="edge type for top edge")
             elif arg == "outside":
                 self.argparser.add_argument(
@@ -368,7 +368,15 @@ class Boxes:
         for i in range(1, 4):
             self.addPart(edges.Hinge(self, s, i))
             self.addPart(edges.HingePin(self, s, i))
-
+        # Sliding Lid
+        s = edges.LidSettings(self.thickness, True, finger=2.0, space=2.0,
+                              surroundingspaces=1.0, play=0.05)
+        self.addPart(edges.LidEdge(self, s))
+        self.addPart(edges.LidHoleEdge(self, s))
+        self.addPart(edges.LidSideRight(self, s))
+        self.addPart(edges.LidSideLeft(self, s))
+        self.addPart(edges.LidRight(self, s))
+        self.addPart(edges.LidLeft(self, s))
         # Nuts
         self.addPart(NutHole(self, None))
         # Gears

boxes/edges.py

@@ -575,7 +575,11 @@ class FingerHoleEdge(BaseEdge):
     description = "Edge (parallel Finger Joint Holes)"
 
     def __init__(self, boxes, fingerHoles=None, **kw):
-        super(FingerHoleEdge, self).__init__(boxes, None, **kw)
+        settings = None
+        if isinstance(fingerHoles, Settings):
+            settings = fingerHoles
+            fingerHoles = FingerHoles(boxes, settings)
+        super(FingerHoleEdge, self).__init__(boxes, settings, **kw)
 
         self.fingerHoles = fingerHoles or boxes.fingerHolesAt
 
@@ -941,6 +945,100 @@ class HingePin(BaseEdge):
             getattr(self, self.settings.style)(True)
 
 
+#############################################################################
+####     Slide-in lid
+#############################################################################
+
+class LidSettings(FingerJointSettings):
+    absolute_params = FingerJointSettings.absolute_params.copy()
+    relative_params = FingerJointSettings.relative_params.copy()
+
+    relative_params.update( {
+        "play" : 0.05,
+        "second_pin" : 2,
+        } )
+
+class LidEdge(FingerJointEdge):
+    char = "l"
+    description = "Edge for slide on lid"
+
+class LidHoleEdge(FingerHoleEdge):
+    char = "L"
+    description = "Edge for slide on lid"
+
+class LidRight(BaseEdge):
+    char = "n"
+    description = "Edge for slide on lid (right)"
+    rightside = True
+
+    def __call__(self, length, **kw):
+        t = self.boxes.thickness
+        p = [t, 90, t, -90, length-t]
+        pin = self.settings.second_pin
+
+        if pin:
+            p[-1:] = [length-2*t-pin, -90, t, 90, pin, 90, t, -90, t]
+
+        if not self.rightside:
+            p = list(reversed(p))
+        self.polyline(*p)
+
+    def startwidth(self):
+        if self.rightside: # or self.settings.second_pin:
+            return self.boxes.thickness
+        else:
+            return 0.0
+
+    def endwidth(self):
+        if not self.rightside: # or self.settings.second_pin:
+            return self.boxes.thickness
+        else:
+            return 0.0
+
+    def margin(self):
+        if not self.rightside: # and not self.settings.second_pin:
+            return self.boxes.thickness
+        else:
+            return 0.0
+
+class LidLeft(LidRight):
+    char = "m"
+    description = "Edge for slide on lid (left)"
+    rightside = False
+
+class LidSideRight(BaseEdge):
+    char = "N"
+    description = "Edge for slide on lid (box right)"
+
+    rightside = True
+    def __call__(self, length,  **kw):
+        t = self.boxes.thickness
+        s = self.settings.play
+        pin = self.settings.second_pin
+
+        p = [t+s, -90, t+s, -90, 2*t+s, 90, t-s, 90, length+t]
+
+        if pin:
+            p[-1:] = [p[-1]-t-2*pin, 90, 2*t+s, -90, 2*pin+s, -90, t+s, -90,
+                      pin, 90, t, 90, pin+t-s]
+        if not self.rightside:
+            p = list(reversed(p))
+        self.polyline(*p)
+
+    def startwidth(self):
+        return 2*self.boxes.thickness if not self.rightside else 0.0
+
+    def endwidth(self):
+        return 2*self.boxes.thickness if self.rightside else 0.0
+
+    def margin(self):
+        return 2*self.boxes.thickness # if not self.rightside else 0.0
+
+class LidSideLeft(LidSideRight):
+    char = "M"
+    description = "Edge for slide on lid (box left)"
+    rightside = False
+
 #############################################################################
 ####     Click Joints
 #############################################################################

boxes/generators/box2.py

@@ -100,6 +100,10 @@ class Box2(Boxes):
             t3 = "j"
         elif t1.char == "k":
             t2 = t4 = "e"
+        elif t1.char == "L":
+            t1 = "M"
+            t2 = "e"
+            t3 = "N"
 
         self.edges["k"].settings.setValues(self.thickness, outset=True)
 
@@ -125,6 +129,8 @@ class Box2(Boxes):
             self.rectangularWall(x, y, "CCCC", bedBolts=[d2, d3, d2, d3], move="up")
         elif self.top_edge == "f":
             self.rectangularWall(x, y, "FFFF", move="up")
+        elif self.top_edge == "L":
+            self.rectangularWall(x, y, "nlmE", move="up")
         elif self.top_edge == "i":
             self.rectangularWall(x, y, "IEJe", move="up")
         elif self.top_edge == "k":