Move panel management to the top

Break out the panel holes and text into separate modules.

Put those modules at the top of the file so they are easier to find.
This unfortunately puts them before the modules they instantiate, but I
think this is a fair trade-off for readability and findability of things
that should be customized.

files/U_Box_V104_Test_Cleaned.scad

@@ -166,6 +166,16 @@ PanelWidth = Width - Thick*2 - PanelGap;
 PanelHeight = Height - Thick*2 - PanelGap;
 
 
+/*  Panel Manager
+
+    Use the below 4 modules to produce holes and text on the front and back panels.
+    The holes modules should contain instances of SquareHole or CylinderHole
+    defined later in this file. The text modules should contain instances of
+    LText or CText defined later in this file. It is recommended to use variables
+    that you define for your needs to create the size and positions of these
+    objects.
+*/
+
 // Calculate board-relative positions with respect to the panel, for
 // convenience in placing panel elements.
 TopOfBoardWRTPanel = FootHeight + PCBThick - (PanelGap/2);
@@ -173,6 +183,44 @@ LeftEdgeOfBoardWRTFPanel = LeftEdgeMargin - (PanelGap/2);
 LeftEdgeOfBoardWRTBPanel = RightEdgeMargin - (PanelGap/2);
 
 
+// Holes for front panel
+module FPanelHoles() {
+    // SquareHole(On/Off, Xpos,Ypos,Length,Width,Filet)
+    SquareHole(1, 20, 20, 15, 10, 1);
+    SquareHole(1, 40, 20, 15, 10, 1);
+    SquareHole(1, 60, 20, 15, 10, 1);
+    // CylinderHole(On/Off, Xpos, Ypos, Diameter)
+    CylinderHole(1, 27, 40, 8);
+    CylinderHole(1, 47, 40, 8);
+    CylinderHole(1, 67, 40, 8);
+    SquareHole(1, 20, 50, 80, 30, 3);
+    CylinderHole(1, 93, 30, 10);
+    SquareHole(1, 120, 20, 30, 60, 3);
+}
+
+
+// Text for front panel
+module FPanelText() {
+    // LText(On/Off, Xpos, Ypos, "Font", Size, "Text", "HAlign", "VAlign")
+    LText(1, 20, 83, "Arial Black", 4, "Digital Screen", HAlign="left");
+    LText(1, 120, 83, "Arial Black", 4, "Level", HAlign="left");
+    LText(1, 20, 11, "Arial Black", 6, "  1     2      3", HAlign="left");
+    // CText(On/Off, Xpos, Ypos, "Font", Size, Diameter, Arc(Deg), Starting Angle(Deg),"Text")
+    CText(1, 93, 29, "Arial Black", 4, 10, 180, 0,
+          ["1", "." , "3", "." , "5", "." , "7", "." , "9", "." , "11"]);
+}
+
+
+// Holes for back panel
+module BPanelHoles() {
+}
+
+
+// Text for back panel
+module BPanelText() {
+}
+
+
 /* Generic rounded box
 
     Produces a box of the specified dimensions. Corners are rounded according to
@@ -526,11 +574,6 @@ module BottomShell() {
 }
 
 
-////////////////////////////////////////////////////////////////////////
-////////////////////// <- Holes Panel Manager -> ///////////////////////
-////////////////////////////////////////////////////////////////////////
-
-
 /*  Panel module
 
     Produces a single panel with potentially rounded corners. Takes no arguments
@@ -667,29 +710,12 @@ module FPanL() {
                 linear_extrude(height=PanelThick) {
                     difference() {
                         Panel();
-                        // Add panel hole modules here.
+                        FPanelHoles();
-                        // SquareHole(On/Off, Xpos,Ypos,Length,Width,Filet)
-                        SquareHole(1, 20, 20, 15, 10, 1);
-                        SquareHole(1, 40, 20, 15, 10, 1);
-                        SquareHole(1, 60, 20, 15, 10, 1);
-                        // CylinderHole(On/Off, Xpos, Ypos, Diameter)
-                        CylinderHole(1, 27, 40, 8);
-                        CylinderHole(1, 47, 40, 8);
-                        CylinderHole(1, 67, 40, 8);
-                        SquareHole(1, 20, 50, 80, 30, 3);
-                        CylinderHole(1, 93, 30, 10);
-                        SquareHole(1, 120, 20, 30, 60, 3);
                     }
                 }
             }
             color(TextColor) {
-                // Add text modules here.
+                FPanelText();
-                // LText(On/Off, Xpos, Ypos, "Font", Size, "Text", "HAlign", "VAlign")
-                LText(1, 20, 83, "Arial Black", 4, "Digital Screen", HAlign="left");
-                LText(1, 120, 83, "Arial Black", 4, "Level", HAlign="left");
-                LText(1, 20, 11, "Arial Black", 6, "  1     2      3", HAlign="left");
-                // CText(On/Off, Xpos, Ypos, "Font", Size, Diameter, Arc(Deg), Starting Angle(Deg),"Text")
-                CText(1, 93, 29, "Arial Black", 4, 10, 180, 0, ["1", "." , "3", "." , "5", "." , "7", "." , "9", "." , "11"]);
             }
         }
     }
@@ -711,12 +737,12 @@ module BPanL() {
                 linear_extrude(height=PanelThick) {
                     difference() {
                         Panel();
-                        // Add panel hole modules here.
+                        BPanelHoles();
                     }
                 }
             }
             color(TextColor) {
-                // Add text modules here.
+                BPanelText();
             }
         }
     }