gEDA-user: skpi_drc patch

[Levente Kovacs <leventelist@xxxxxxxxx>]

Attached you can find the "skip_drc" patch for the current head.

It would be nice if it was checked in to git HEAD.


Thanks,
Levente

-- 
Levente Kovacs
http://levente.logonex.eu

diff --git a/src/action.c b/src/action.c
index 4f2e401..af93c19 100644
--- a/src/action.c
+++ b/src/action.c
@@ -6947,7 +6947,7 @@ find_element_by_refdes (char *refdes)
   return NULL;
 }
 
-static AttributeType *
+AttributeType *
 lookup_attr (AttributeListTypePtr list, const char *name)
 {
   int i;
diff --git a/src/action.h b/src/action.h
index ee116e8..6dbaf2d 100644
--- a/src/action.h
+++ b/src/action.h
@@ -46,4 +46,5 @@ void warpNoWhere (void);
 /* In gui-misc.c */
 bool ActionGetLocation (char *);
 void ActionGetXY (char *);
+AttributeType * lookup_attr (AttributeListTypePtr list, const char *name);
 #endif
diff --git a/src/find.c b/src/find.c
index eb4cac2..cdd1063 100644
--- a/src/find.c
+++ b/src/find.c
@@ -94,6 +94,7 @@
 #include "set.h"
 #include "undo.h"
 #include "rats.h"
+#include "action.h"
 
 #ifdef HAVE_LIBDMALLOC
 #include <dmalloc.h>
@@ -822,6 +823,8 @@ LookupLOConnectionsToPVList (bool AndRats)
       /* now all lines, arcs and polygons of the several layers */
       for (layer = 0; layer < max_copper_layer; layer++)
         {
+          if (LAYER_PTR (layer)->no_drc)
+             continue;
           info.layer = layer;
           /* add touching lines */
           if (setjmp (info.env) == 0)
@@ -1169,6 +1172,8 @@ LookupPVConnectionsToLOList (bool AndRats)
   /* loop over all layers */
   for (layer = 0; layer < max_copper_layer; layer++)
     {
+      if (LAYER_PTR (layer)->no_drc)
+                       continue;
       /* do nothing if there are no PV's */
       if (TotalP + TotalV == 0)
         {
@@ -2901,6 +2906,22 @@ ListsEmpty (bool AndRats)
   return (empty);
 }
 
+
+static void
+reassign_no_drc_flags (void)
+{
+  int layer;
+
+  for (layer = 0; layer < max_copper_layer; layer++)
+    {
+      LayerTypePtr l = LAYER_PTR (layer);
+      l->no_drc = lookup_attr (&(l->Attributes), "PCB::skip-drc") != NULL;
+    }
+}
+
+
+
+
 /* ---------------------------------------------------------------------------
  * loops till no more connections are found 
  */
@@ -2908,6 +2929,7 @@ static bool
 DoIt (bool AndRats, bool AndDraw)
 {
   bool newone = false;
+  reassign_no_drc_flags ();
   do
     {
       /* lookup connections; these are the steps (2) to (4)
@@ -3350,6 +3372,7 @@ LookupConnection (LocationType X, LocationType Y, bool AndDraw,
 
   /* check if there are any pins or pads at that position */
 
+	reassign_no_drc_flags ();
 
   type
     = SearchObjectByLocation (LOOKUP_FIRST, &ptr1, &ptr2, &ptr3, X, Y, Range);
@@ -3366,8 +3389,8 @@ LookupConnection (LocationType X, LocationType Y, bool AndDraw,
           int laynum = GetLayerNumber (PCB->Data,
                                        (LayerTypePtr) ptr1);
 
-          /* don't mess with silk objects! */
-          if (laynum >= max_copper_layer)
+          /* don't mess with non-conducting objects! */
+          if (laynum >= max_copper_layer || ((LayerTypePtr)ptr1)->no_drc)
             return;
         }
     }
diff --git a/src/global.h b/src/global.h
index daa82a9..08abbb8 100644
--- a/src/global.h
+++ b/src/global.h
@@ -303,6 +303,7 @@ typedef struct			/* holds information about one layer */
   char *Color,			/* color */
    *SelectedColor;
   AttributeListType Attributes;
+  int no_drc; /* whether to ignore the layer when checking the design rules */
 }
 LayerType, *LayerTypePtr;
 


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