Function TkIncludePoint

micropolis-activity/src/tk/tktrig.c:724–748

ARGSUSED */

(canvasPtr, itemPtr, pointPtr)

 *	None.
 *
 * Side effects:
 *	The boudn.
 *
 *--------------------------------------------------------------
 */

	/* ARGSUSED */
void
TkIncludePoint(canvasPtr, itemPtr, pointPtr)
    Tk_Canvas *canvasPtr;		/* Canvas containing item. */
    register Tk_Item *itemPtr;		/* Item whose bounding box is
					 * being calculated. */
    double *pointPtr;			/* Address of two doubles giving
					 * x and y coordinates of point. */
{
    int tmp;

    tmp = pointPtr[0] + 0.5;
    if (tmp < itemPtr->x1) {
	itemPtr->x1 = tmp;
    }
    if (tmp > itemPtr->x2) {
	itemPtr->x2 = tmp;
    }
    tmp = pointPtr[1] + 0.5;
    if (tmp < itemPtr->y1) {
	itemPtr->y1 = tmp;
    }