1 files changed, 212 insertions, 0 deletions
diff --git a/src/bltGrMarkerOption.C b/src/bltGrMarkerOption.C
new file mode 100644
index 0000000..ff57784
--- /dev/null
+++ b/src/bltGrMarkerOption.C
@@ -0,0 +1,212 @@
+/*
+ * Smithsonian Astrophysical Observatory, Cambridge, MA, USA
+ * This code has been modified under the terms listed below and is made
+ * available under the same terms.
+ */
+
+/*
+ *	Copyright 1993-2004 George A Howlett.
+ *
+ *	Permission is hereby granted, free of charge, to any person obtaining
+ *	a copy of this software and associated documentation files (the
+ *	"Software"), to deal in the Software without restriction, including
+ *	without limitation the rights to use, copy, modify, merge, publish,
+ *	distribute, sublicense, and/or sell copies of the Software, and to
+ *	permit persons to whom the Software is furnished to do so, subject to
+ *	the following conditions:
+ *
+ *	The above copyright notice and this permission notice shall be
+ *	included in all copies or substantial portions of the Software.
+ *
+ *	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *	NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ *	LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ *	OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ *	WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "bltC.h"
+
+extern "C" {
+#include "bltGraph.h"
+#include "bltGrMarkerOption.h"
+};
+
+#include "bltConfig.h"
+#include "bltGrMarker.h"
+
+using namespace Blt;
+
+static Tcl_Obj* PrintCoordinate(double x);
+static int GetCoordinate(Tcl_Interp* interp, Tcl_Obj *objPtr, double *valuePtr);
+
+static Tk_CustomOptionSetProc CoordsSetProc;
+static Tk_CustomOptionGetProc CoordsGetProc;
+static Tk_CustomOptionFreeProc CoordsFreeProc;
+Tk_ObjCustomOption coordsObjOption =
+  {
+    "coords", CoordsSetProc, CoordsGetProc, RestoreProc, CoordsFreeProc, NULL
+  };
+
+static int CoordsSetProc(ClientData clientData, Tcl_Interp* interp,
+			 Tk_Window tkwin, Tcl_Obj** objPtr, char* widgRec,
+			 int offset, char* savePtr, int flags)
+{
+  Coords** coordsPtrPtr = (Coords**)(widgRec + offset);
+  *(double*)savePtr = *(double*)coordsPtrPtr;
+
+  if (!coordsPtrPtr)
+    return TCL_OK;
+
+  int objc;
+  Tcl_Obj** objv;
+  if (Tcl_ListObjGetElements(interp, *objPtr, &objc, &objv) != TCL_OK)
+    return TCL_ERROR;
+
+  if (objc == 0) {
+    *coordsPtrPtr = NULL;
+    return TCL_OK;
+  }
+
+  if (objc & 1) {
+    Tcl_AppendResult(interp, "odd number of marker coordinates specified",NULL);
+    return TCL_ERROR;
+  }
+
+  Coords* coordsPtr = (Coords*)calloc(1,sizeof(Coords));
+  coordsPtr->num = objc/2;
+  coordsPtr->points = (Point2d*)calloc(coordsPtr->num, sizeof(Point2d));
+
+  Point2d* pp = coordsPtr->points;
+  for (int ii=0; ii<objc; ii+=2) {
+    double x, y;
+    if ((GetCoordinate(interp, objv[ii], &x) != TCL_OK) ||
+	(GetCoordinate(interp, objv[ii+1], &y) != TCL_OK))
+      return TCL_ERROR;
+    pp->x = x;
+    pp->y = y;
+    pp++;
+  }
+
+  *coordsPtrPtr = coordsPtr;
+  return TCL_OK;
+}
+
+static Tcl_Obj* CoordsGetProc(ClientData clientData, Tk_Window tkwin, 
+			      char *widgRec, int offset)
+{
+  Coords* coordsPtr = *(Coords**)(widgRec + offset);
+
+  if (!coordsPtr)
+    return Tcl_NewListObj(0, NULL);
+
+  int cnt = coordsPtr->num*2;
+  Tcl_Obj** ll = (Tcl_Obj**)calloc(cnt, sizeof(Tcl_Obj*));
+
+  Point2d* pp = coordsPtr->points;
+  for (int ii=0; ii<cnt; pp++) {
+    ll[ii++] = PrintCoordinate(pp->x);
+    ll[ii++] = PrintCoordinate(pp->y);
+  }
+
+  Tcl_Obj* listObjPtr = Tcl_NewListObj(cnt, ll);
+  free(ll);
+  return listObjPtr;
+}
+
+static void CoordsFreeProc(ClientData clientData, Tk_Window tkwin,
+			   char *ptr)
+{
+  Coords* coordsPtr = *(Coords**)ptr;
+  if (coordsPtr) {
+    if (coordsPtr->points)
+      free(coordsPtr->points);
+    free(coordsPtr);
+  }
+}
+
+static Tk_CustomOptionSetProc CapStyleSetProc;
+static Tk_CustomOptionGetProc CapStyleGetProc;
+Tk_ObjCustomOption capStyleObjOption =
+  {
+    "capStyle", CapStyleSetProc, CapStyleGetProc, NULL, NULL, NULL
+  };
+
+static int CapStyleSetProc(ClientData clientData, Tcl_Interp* interp,
+			   Tk_Window tkwin, Tcl_Obj** objPtr, char* widgRec,
+			   int offset, char* save, int flags)
+{
+  int* ptr = (int*)(widgRec + offset);
+
+  Tk_Uid uid = Tk_GetUid(Tcl_GetString(*objPtr));
+  int cap;
+  if (Tk_GetCapStyle(interp, uid, &cap) != TCL_OK)
+    return TCL_ERROR;
+  *ptr = cap;
+
+  return TCL_OK;
+}
+
+static Tcl_Obj* CapStyleGetProc(ClientData clientData, Tk_Window tkwin, 
+			      char *widgRec, int offset)
+{
+  int* ptr = (int*)(widgRec + offset);
+  return Tcl_NewStringObj(Tk_NameOfCapStyle(*ptr), -1);
+}
+
+static Tk_CustomOptionSetProc JoinStyleSetProc;
+static Tk_CustomOptionGetProc JoinStyleGetProc;
+Tk_ObjCustomOption joinStyleObjOption =
+  {
+    "joinStyle", JoinStyleSetProc, JoinStyleGetProc, NULL, NULL, NULL
+  };
+
+static int JoinStyleSetProc(ClientData clientData, Tcl_Interp* interp,
+			   Tk_Window tkwin, Tcl_Obj** objPtr, char* widgRec,
+			   int offset, char* save, int flags)
+{
+  int* ptr = (int*)(widgRec + offset);
+
+  Tk_Uid uid = Tk_GetUid(Tcl_GetString(*objPtr));
+  int join;
+  if (Tk_GetJoinStyle(interp, uid, &join) != TCL_OK)
+    return TCL_ERROR;
+  *ptr = join;
+
+  return TCL_OK;
+}
+
+static Tcl_Obj* JoinStyleGetProc(ClientData clientData, Tk_Window tkwin, 
+			      char *widgRec, int offset)
+{
+  int* ptr = (int*)(widgRec + offset);
+  return Tcl_NewStringObj(Tk_NameOfJoinStyle(*ptr), -1);
+}
+
+static Tcl_Obj* PrintCoordinate(double x)
+{
+  if (x == DBL_MAX)
+    return Tcl_NewStringObj("+Inf", -1);
+  else if (x == -DBL_MAX)
+    return Tcl_NewStringObj("-Inf", -1);
+  else
+    return Tcl_NewDoubleObj(x);
+}
+
+static int GetCoordinate(Tcl_Interp* interp, Tcl_Obj *objPtr, double *valuePtr)
+{
+  const char* expr = Tcl_GetString(objPtr);
+  char c = expr[0];
+  if ((c == 'I') && (strcmp(expr, "Inf") == 0))
+    *valuePtr = DBL_MAX;		/* Elastic upper bound */
+  else if ((c == '-') && (expr[1] == 'I') && (strcmp(expr, "-Inf") == 0))
+    *valuePtr = -DBL_MAX;		/* Elastic lower bound */
+  else if ((c == '+') && (expr[1] == 'I') && (strcmp(expr, "+Inf") == 0))
+    *valuePtr = DBL_MAX;		/* Elastic upper bound */
+  else if (Blt_ExprDoubleFromObj(interp, objPtr, valuePtr) != TCL_OK)
+    return TCL_ERROR;
+
+  return TCL_OK;
+}