Added new wruler.{c,h} files from nwanua

WINGs/wruler.h

@@ -0,0 +1,47 @@
+
+#include <WINGs.h>
+#include <WINGsP.h>
+#include <WUtil.h>
+
+//items in this file go into WINGs.h
+#define WC_Ruler 16
+typedef struct W_Ruler WMRuler;
+
+/* All indentation and tab markers are _relative_ to the left margin marker */
+
+/* a tabstop is a linked list of tabstops, 
+ * each containing the position of the tabstop */
+
+typedef struct _tabstops {
+	struct _tabstops *next;
+	int value;
+} WMTabStops;
+
+typedef struct W_RulerMargins {
+	int left;				/* left margin marker */
+	int right;				/* right margin marker */
+	int first;				/* indentation marker for first line only */
+	int body;				/* body indentation marker */
+	WMTabStops *tabs;
+} WMRulerMargins;
+
+		
+
+
+WMRuler *WMCreateRuler (WMWidget *parent);
+void WMShowRulerTabs(WMRuler *rPtr, Bool Show);
+void WMSetRulerMoveAction(WMRuler *rPtr, 
+					WMAction *action, void *clientData);
+void WMSetRulerReleaseAction(WMRuler *rPtr, 
+					WMAction *action, void *clientData);
+
+int WMGetRulerOffset(WMRuler *rPtr);
+void WMSetRulerOffset(WMRuler *rPtr, int pixels);
+
+WMRulerMargins WMGetRulerMargins(WMRuler *rPtr);
+void WMSetRulerMargins(WMRuler *rPtr, WMRulerMargins margins);
+
+int WMGetReleasedRulerMargin(WMRuler *rPtr);
+int WMGetGrabbedRulerMargin(WMRuler *rPtr);
+
+