* generic/tkCanvArc.c (CreateArc): Rework canvas create item

	* generic/tkCanvBmap.c (CreateBitmap):   type coords handling to be
	* generic/tkCanvImg.c (CreateImage):     consistent across types
	* generic/tkCanvPoly.c (CreatePolygon):  and not pass empty coords
	* generic/tkCanvLine.c (CreateLine):     to item creation procs.
	* generic/tkCanvText.c (CreateText):
	* generic/tkCanvWind.c (CreateWinItem):
	* generic/tkCanvas.c (CanvasWidgetCmd CANV_CREATE):
	* generic/tkRectOval.c (CreateRectOval):
	* tests/canvRect.test:
	* tests/canvText.test:
	* tests/canvas.test:

1 files changed, 9 insertions, 4 deletions

diff --git a/generic/tkCanvPoly.c b/generic/tkCanvPoly.c
index b3f5374..5058b9f 100644
--- a/generic/tkCanvPoly.c
+++ b/generic/tkCanvPoly.c
@@ -10,7 +10,7 @@
  * See the file "license.terms" for information on usage and redistribution
  * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tkCanvPoly.c,v 1.9 2002/08/05 04:30:38 dgp Exp $
+ * RCS: @(#) $Id: tkCanvPoly.c,v 1.10 2003/02/09 07:48:22 hobbs Exp $
  */
 
 #include <stdio.h>
@@ -266,6 +266,10 @@ CreatePolygon(interp, canvas, itemPtr, objc, objv)
     PolygonItem *polyPtr = (PolygonItem *) itemPtr;
     int i;
 
+    if (objc == 0) {
+	panic("canvas did not pass any coords\n");
+    }
+
     /*
      * Carry out initialization that is needed in order to clean
      * up after errors during the the remainder of this procedure.
@@ -368,9 +372,10 @@ PolygonCoords(interp, canvas, itemPtr, objc, objv)
 	}
     }
     if (objc & 1) {
-	Tcl_AppendResult(interp,
-		"odd number of coordinates specified for polygon",
-		(char *) NULL);
+	char buf[64 + TCL_INTEGER_SPACE];
+	sprintf(buf, "wrong # coordinates: expected an even number, got %d",
+		objc);
+	Tcl_SetResult(interp, buf, TCL_VOLATILE);
 	return TCL_ERROR;
     } else {
 	numPoints = objc/2;