diff --git a/generic/tk.h b/generic/tk.h
index 2e00d8f5f..5c48d52ff 100644
--- a/generic/tk.h
+++ b/generic/tk.h
@@ -1124,7 +1124,7 @@ typedef struct Tk_ItemType {
 typedef struct Tk_CanvasTextInfo {
     Tk_3DBorder selBorder;	/* Border and background for selected
 				 * characters. Read-only to items.*/
-    int selBorderWidth;		/* Width of border around selection. Read-only
+    Tcl_Obj *selBorderWidthObj;		/* Width of border around selection. Read-only
 				 * to items. */
     XColor *selFgColorPtr;	/* Foreground color for selected text.
 				 * Read-only to items. */
@@ -1144,9 +1144,9 @@ typedef struct Tk_CanvasTextInfo {
 				 * items. */
     Tk_3DBorder insertBorder;	/* Used to draw vertical bar for insertion
 				 * cursor. Read-only to items. */
-    int insertWidth;		/* Total width of insertion cursor. Read-only
+    Tcl_Obj *insertWidthObj;		/* Total width of insertion cursor. Read-only
 				 * to items. */
-    int insertBorderWidth;	/* Width of 3-D border around insert cursor.
+    Tcl_Obj *insertBorderWidthObj;	/* Width of 3-D border around insert cursor.
 				 * Read-only to items. */
     Tk_Item *focusItemPtr;	/* Item that currently has the input focus, or
 				 * NULL if no such item. Read-only to items. */
diff --git a/generic/tkCanvText.c b/generic/tkCanvText.c
index 2cf875721..bc3716422 100644
--- a/generic/tkCanvText.c
+++ b/generic/tkCanvText.c
@@ -715,7 +715,7 @@ ComputeTextBbox(
     TextItem *textPtr)		/* Item whose bbox is to be recomputed. */
 {
     Tk_CanvasTextInfo *textInfoPtr;
-    int width, height, fudge, i;
+    int width, height, fudge, i, insertWidth, selBorderWidth;
     Tk_State state = textPtr->header.state;
     double x[4], y[4], dx[4], dy[4], sinA, cosA, tmp;
 
@@ -799,9 +799,11 @@ ComputeTextBbox(
      */
 
     textInfoPtr = textPtr->textInfoPtr;
-    fudge = (textInfoPtr->insertWidth + 1) / 2;
-    if (textInfoPtr->selBorderWidth > fudge) {
-	fudge = textInfoPtr->selBorderWidth;
+    Tk_GetPixelsFromObj(NULL, Tk_CanvasTkwin(canvas), textInfoPtr->insertWidthObj, &insertWidth);
+    Tk_GetPixelsFromObj(NULL, Tk_CanvasTkwin(canvas), textInfoPtr->selBorderWidthObj, &selBorderWidth);
+    fudge = (insertWidth + 1) / 2;
+    if (selBorderWidth > fudge) {
+	fudge = selBorderWidth;
     }
 
     /*
@@ -928,6 +930,7 @@ DisplayCanvText(
 	if ((selFirstChar >= 0) && (selFirstChar <= selLastChar)) {
 	    int xFirst, yFirst, hFirst;
 	    int xLast, yLast, wLast;
+		int selBorderWidth;
 
 	    /*
 	     * Draw a special background under the selection.
@@ -947,6 +950,7 @@ DisplayCanvText(
 
 	    x = xFirst;
 	    height = hFirst;
+	    Tk_GetPixelsFromObj(NULL, Tk_CanvasTkwin(canvas), textInfoPtr->selBorderWidthObj, &selBorderWidth);
 	    for (y = yFirst ; y <= yLast; y += height) {
 		int dx1, dy1, dx2, dy2;
 		double s = textPtr->sine, c = textPtr->cosine;
@@ -957,9 +961,9 @@ DisplayCanvText(
 		} else {
 		    width = textPtr->actualWidth - x;
 		}
-		dx1 = x - textInfoPtr->selBorderWidth;
+		dx1 = x - selBorderWidth;
 		dy1 = y;
-		dx2 = width + 2 * textInfoPtr->selBorderWidth;
+		dx2 = width + 2 * selBorderWidth;
 		dy2 = height;
 		points[0].x = (short)(drawableX + dx1*c + dy1*s);
 		points[0].y = (short)(drawableY + dy1*c - dx1*s);
@@ -971,7 +975,7 @@ DisplayCanvText(
 		points[3].y = (short)(drawableY + (dy1+dy2)*c - dx1*s);
 		Tk_Fill3DPolygon(Tk_CanvasTkwin(canvas), drawable,
 			textInfoPtr->selBorder, points, 4,
-			textInfoPtr->selBorderWidth, TK_RELIEF_RAISED);
+			selBorderWidth, TK_RELIEF_RAISED);
 		x = 0;
 	    }
 	}
@@ -992,10 +996,12 @@ DisplayCanvText(
 	    int dx1, dy1, dx2, dy2;
 	    double s = textPtr->sine, c = textPtr->cosine;
 	    XPoint points[4];
+	    int insertWidth;
 
-	    dx1 = x - (textInfoPtr->insertWidth / 2);
+	    Tk_GetPixelsFromObj(NULL, Tk_CanvasTkwin(canvas), textInfoPtr->insertWidthObj, &insertWidth);
+	    dx1 = x - (insertWidth / 2);
 	    dy1 = y;
-	    dx2 = textInfoPtr->insertWidth;
+	    dx2 = insertWidth;
 	    dy2 = height;
 	    points[0].x = (short)(drawableX + dx1*c + dy1*s);
 	    points[0].y = (short)(drawableY + dy1*c - dx1*s);
@@ -1009,9 +1015,11 @@ DisplayCanvText(
 	    Tk_SetCaretPos(Tk_CanvasTkwin(canvas), points[0].x, points[0].y,
 		    height);
 	    if (textInfoPtr->cursorOn) {
+		int insertBorderWidth;
+		Tk_GetPixelsFromObj(NULL, Tk_CanvasTkwin(canvas), textInfoPtr->insertBorderWidthObj, &insertBorderWidth);
 		Tk_Fill3DPolygon(Tk_CanvasTkwin(canvas), drawable,
 			textInfoPtr->insertBorder, points, 4,
-			textInfoPtr->insertBorderWidth, TK_RELIEF_RAISED);
+			insertBorderWidth, TK_RELIEF_RAISED);
 	    } else if (textPtr->cursorOffGC != NULL) {
 		/*
 		 * Redraw the background over the area of the cursor, even
diff --git a/generic/tkCanvas.c b/generic/tkCanvas.c
index 94bdc576b..29ac09d29 100644
--- a/generic/tkCanvas.c
+++ b/generic/tkCanvas.c
@@ -121,17 +121,17 @@ static const Tk_ConfigSpec configSpecs[] = {
     {TK_CONFIG_BORDER, "-insertbackground", "insertBackground", "Foreground",
 	DEF_CANVAS_INSERT_BG, offsetof(TkCanvas, textInfo.insertBorder), 0, NULL},
     {TK_CONFIG_PIXELS, "-insertborderwidth", "insertBorderWidth", "BorderWidth",
-	DEF_CANVAS_INSERT_BD_COLOR,
-	offsetof(TkCanvas, textInfo.insertBorderWidth), TK_CONFIG_COLOR_ONLY, NULL},
+	DEF_CANVAS_INSERT_BD_COLOR, offsetof(TkCanvas, textInfo.insertBorderWidthObj),
+	TK_CONFIG_OBJS|TK_CONFIG_COLOR_ONLY, NULL},
     {TK_CONFIG_PIXELS, "-insertborderwidth", "insertBorderWidth", "BorderWidth",
-	DEF_CANVAS_INSERT_BD_MONO,
-	offsetof(TkCanvas, textInfo.insertBorderWidth), TK_CONFIG_MONO_ONLY, NULL},
+	DEF_CANVAS_INSERT_BD_MONO, offsetof(TkCanvas, textInfo.insertBorderWidthObj),
+	TK_CONFIG_OBJS|TK_CONFIG_MONO_ONLY, NULL},
     {TK_CONFIG_INT, "-insertofftime", "insertOffTime", "OffTime",
 	DEF_CANVAS_INSERT_OFF_TIME, offsetof(TkCanvas, insertOffTime), 0, NULL},
     {TK_CONFIG_INT, "-insertontime", "insertOnTime", "OnTime",
 	DEF_CANVAS_INSERT_ON_TIME, offsetof(TkCanvas, insertOnTime), 0, NULL},
     {TK_CONFIG_PIXELS, "-insertwidth", "insertWidth", "InsertWidth",
-	DEF_CANVAS_INSERT_WIDTH, offsetof(TkCanvas, textInfo.insertWidth), 0, NULL},
+	DEF_CANVAS_INSERT_WIDTH, offsetof(TkCanvas, textInfo.insertWidthObj), TK_CONFIG_OBJS, NULL},
     {TK_CONFIG_CUSTOM, "-offset", "offset", "Offset", "0,0",
 	offsetof(TkCanvas, tsoffset),TK_CONFIG_DONT_SET_DEFAULT,
 	&offsetOption},
@@ -147,11 +147,11 @@ static const Tk_ConfigSpec configSpecs[] = {
 	DEF_CANVAS_SELECT_MONO, offsetof(TkCanvas, textInfo.selBorder),
 	TK_CONFIG_MONO_ONLY, NULL},
     {TK_CONFIG_PIXELS, "-selectborderwidth", "selectBorderWidth", "BorderWidth",
-	DEF_CANVAS_SELECT_BD_COLOR,
-	offsetof(TkCanvas, textInfo.selBorderWidth), TK_CONFIG_COLOR_ONLY, NULL},
+	DEF_CANVAS_SELECT_BD_COLOR, offsetof(TkCanvas, textInfo.selBorderWidthObj),
+	TK_CONFIG_OBJS|TK_CONFIG_COLOR_ONLY, NULL},
     {TK_CONFIG_PIXELS, "-selectborderwidth", "selectBorderWidth", "BorderWidth",
-	DEF_CANVAS_SELECT_BD_MONO, offsetof(TkCanvas, textInfo.selBorderWidth),
-	TK_CONFIG_MONO_ONLY, NULL},
+	DEF_CANVAS_SELECT_BD_MONO, offsetof(TkCanvas, textInfo.selBorderWidthObj),
+	TK_CONFIG_OBJS|TK_CONFIG_MONO_ONLY, NULL},
     {TK_CONFIG_COLOR, "-selectforeground", "selectForeground", "Background",
 	DEF_CANVAS_SELECT_FG_COLOR, offsetof(TkCanvas, textInfo.selFgColorPtr),
 	TK_CONFIG_COLOR_ONLY|TK_CONFIG_NULL_OK, NULL},
@@ -170,16 +170,14 @@ static const Tk_ConfigSpec configSpecs[] = {
 	DEF_CANVAS_X_SCROLL_CMD, offsetof(TkCanvas, xScrollCmd),
 	TK_CONFIG_NULL_OK, NULL},
     {TK_CONFIG_PIXELS, "-xscrollincrement", "xScrollIncrement",
-	"ScrollIncrement",
-	DEF_CANVAS_X_SCROLL_INCREMENT, offsetof(TkCanvas, xScrollIncrementObj),
-	TK_CONFIG_OBJS, NULL},
+	"ScrollIncrement", DEF_CANVAS_X_SCROLL_INCREMENT,
+	offsetof(TkCanvas, xScrollIncrementObj), TK_CONFIG_OBJS, NULL},
     {TK_CONFIG_STRING, "-yscrollcommand", "yScrollCommand", "ScrollCommand",
 	DEF_CANVAS_Y_SCROLL_CMD, offsetof(TkCanvas, yScrollCmd),
 	TK_CONFIG_NULL_OK, NULL},
     {TK_CONFIG_PIXELS, "-yscrollincrement", "yScrollIncrement",
-	"ScrollIncrement",
-	DEF_CANVAS_Y_SCROLL_INCREMENT, offsetof(TkCanvas, yScrollIncrementObj),
-	TK_CONFIG_OBJS, NULL},
+	"ScrollIncrement", DEF_CANVAS_Y_SCROLL_INCREMENT,
+	offsetof(TkCanvas, yScrollIncrementObj), TK_CONFIG_OBJS, NULL},
     {TK_CONFIG_END, NULL, NULL, NULL, NULL, 0, 0, NULL}
 };
 
@@ -690,7 +688,7 @@ Tk_CanvasObjCmd(
     canvasPtr->heightObj = NULL;
     canvasPtr->confine = 0;
     canvasPtr->textInfo.selBorder = NULL;
-    canvasPtr->textInfo.selBorderWidth = 0;
+    canvasPtr->textInfo.selBorderWidthObj = NULL;
     canvasPtr->textInfo.selFgColorPtr = NULL;
     canvasPtr->textInfo.selItemPtr = NULL;
     canvasPtr->textInfo.selectFirst = TCL_INDEX_NONE;
@@ -698,8 +696,8 @@ Tk_CanvasObjCmd(
     canvasPtr->textInfo.anchorItemPtr = NULL;
     canvasPtr->textInfo.selectAnchor = 0;
     canvasPtr->textInfo.insertBorder = NULL;
-    canvasPtr->textInfo.insertWidth = 0;
-    canvasPtr->textInfo.insertBorderWidth = 0;
+    canvasPtr->textInfo.insertWidthObj = NULL;
+    canvasPtr->textInfo.insertBorderWidthObj = NULL;
     canvasPtr->textInfo.focusItemPtr = NULL;
     canvasPtr->textInfo.gotFocus = 0;
     canvasPtr->textInfo.cursorOn = 0;
@@ -2267,6 +2265,7 @@ ConfigureCanvas(
     Tk_State old_canvas_state=canvasPtr->canvas_state;
     int width, height, borderWidth, highlightWidth;
     int xScrollIncrement, yScrollIncrement;
+    int insertBorderWidth, insertWidth;
 
     if (Tk_ConfigureWidget(interp, canvasPtr->tkwin, configSpecs,
 	    objc, objv, canvasPtr,
@@ -2281,36 +2280,50 @@ ConfigureCanvas(
 
     Tk_SetBackgroundFromBorder(canvasPtr->tkwin, canvasPtr->bgBorder);
 
-    Tk_GetPixelsFromObj(NULL, canvasPtr->tkwin, canvasPtr->heightObj, &height);
-    Tk_GetPixelsFromObj(NULL, canvasPtr->tkwin, canvasPtr->widthObj, &width);
     Tk_GetPixelsFromObj(NULL, canvasPtr->tkwin, canvasPtr->borderWidthObj, &borderWidth);
+    Tk_GetPixelsFromObj(NULL, canvasPtr->tkwin, canvasPtr->heightObj, &height);
     Tk_GetPixelsFromObj(NULL, canvasPtr->tkwin, canvasPtr->highlightWidthObj, &highlightWidth);
+    Tk_GetPixelsFromObj(NULL, canvasPtr->tkwin, canvasPtr->textInfo.insertBorderWidthObj, &insertBorderWidth);
+    Tk_GetPixelsFromObj(NULL, canvasPtr->tkwin, canvasPtr->textInfo.insertWidthObj, &insertWidth);
+    Tk_GetPixelsFromObj(NULL, canvasPtr->tkwin, canvasPtr->widthObj, &width);
     Tk_GetPixelsFromObj(NULL, canvasPtr->tkwin, canvasPtr->xScrollIncrementObj, &xScrollIncrement);
     Tk_GetPixelsFromObj(NULL, canvasPtr->tkwin, canvasPtr->yScrollIncrementObj, &yScrollIncrement);
-    if (height < 0) {
-	height = 0;
-	Tcl_DecrRefCount(canvasPtr->heightObj);
-	canvasPtr->heightObj = Tcl_NewIntObj(0);
-	Tcl_IncrRefCount(canvasPtr->heightObj);
-    }
-    if (width < 0) {
-	width = 0;
-	Tcl_DecrRefCount(canvasPtr->widthObj);
-	canvasPtr->widthObj = Tcl_NewIntObj(0);
-	Tcl_IncrRefCount(canvasPtr->widthObj);
-    }
     if (borderWidth < 0) {
 	borderWidth = 0;
 	Tcl_DecrRefCount(canvasPtr->borderWidthObj);
 	canvasPtr->borderWidthObj = Tcl_NewIntObj(0);
 	Tcl_IncrRefCount(canvasPtr->borderWidthObj);
     }
+    if (height < 0) {
+	height = 0;
+	Tcl_DecrRefCount(canvasPtr->heightObj);
+	canvasPtr->heightObj = Tcl_NewIntObj(0);
+	Tcl_IncrRefCount(canvasPtr->heightObj);
+    }
     if (highlightWidth < 0) {
 	highlightWidth = 0;
 	Tcl_DecrRefCount(canvasPtr->highlightWidthObj);
 	canvasPtr->highlightWidthObj = Tcl_NewIntObj(0);
 	Tcl_IncrRefCount(canvasPtr->highlightWidthObj);
     }
+    if (insertBorderWidth < 0) {
+	insertBorderWidth = 0;
+	Tcl_DecrRefCount(canvasPtr->textInfo.insertBorderWidthObj);
+	canvasPtr->textInfo.insertBorderWidthObj = Tcl_NewIntObj(0);
+	Tcl_IncrRefCount(canvasPtr->textInfo.insertBorderWidthObj);
+    }
+    if (insertWidth < 0) {
+	insertWidth = 0;
+	Tcl_DecrRefCount(canvasPtr->textInfo.insertWidthObj);
+	canvasPtr->textInfo.insertWidthObj = Tcl_NewIntObj(0);
+	Tcl_IncrRefCount(canvasPtr->textInfo.insertWidthObj);
+    }
+    if (width < 0) {
+	width = 0;
+	Tcl_DecrRefCount(canvasPtr->widthObj);
+	canvasPtr->widthObj = Tcl_NewIntObj(0);
+	Tcl_IncrRefCount(canvasPtr->widthObj);
+    }
     if (xScrollIncrement < 0) {
 	xScrollIncrement = 0;
 	Tcl_DecrRefCount(canvasPtr->xScrollIncrementObj);
diff --git a/tests/canvas.test b/tests/canvas.test
index 17821b219..6cf1928d7 100644
--- a/tests/canvas.test
+++ b/tests/canvas.test
@@ -107,7 +107,7 @@ test canvas-1.24 {configuration options: bad value for "insertbackground"} -body
 test canvas-1.25 {configuration options: good value for "insertborderwidth"} -body {
     .c configure -insertborderwidth 1.3
     .c cget -insertborderwidth
-} -result 1
+} -result 1.3
 test canvas-1.26 {configuration options: bad value for "insertborderwidth"} -body {
     .c configure -insertborderwidth 2.6x
 } -returnCodes error -result {expected screen distance but got "2.6x"}
@@ -128,7 +128,7 @@ test canvas-1.30 {configuration options: bad value for "insertontime"} -body {
 test canvas-1.31 {configuration options: good value for "insertwidth"} -body {
     .c configure -insertwidth 1.3
     .c cget -insertwidth
-} -result 1
+} -result 1.3
 test canvas-1.32 {configuration options: bad value for "insertwidth"} -body {
     .c configure -insertwidth 6x
 } -returnCodes error -result {expected screen distance but got "6x"}
@@ -149,7 +149,7 @@ test canvas-1.36 {configuration options: bad value for "selectbackground"} -body
 test canvas-1.37 {configuration options: good value for "selectborderwidth"} -body {
     .c configure -selectborderwidth 1.3
     .c cget -selectborderwidth
-} -result 1
+} -result 1.3
 test canvas-1.38 {configuration options: bad value for "selectborderwidth"} -body {
     .c configure -selectborderwidth badValue
 } -returnCodes error -result {expected screen distance but got "badValue"}