#include <X11/Intrinsic.h>
#include <X11/StringDefs.h>
#include "TabString.h"

/*
 *	Like DrawImageString, except it takes an additional  "tabs"
 *	argument, used to specify what horizontal pixel position to
 *	move to when tab characters are present in the string.  If
 *	the "tabs" argument is NULL, works exactly like its
 *	counterpart.
 */
void
XfwfDrawImageString(display, drawable, gc, x, y, string, length, tabs)
     Display *display;
     Drawable drawable;
     GC gc;
     int x;
     int y;
     String string;
     int length;
     int *tabs;
{
	register char	*p, *ep;
	register int	tx, tab;

	tab = tx = 0;
	for (p = string; length; )
	{
		ep = strnchr(p, '\t', length);
		if (ep && tabs)
		{
			XDrawImageString(display, drawable, gc, x+tx, y,
				p, ep - p);
			tx = tabs[tab++];
			length -= ep - p + 1;
			p = ep + 1;
		}
		else
		{
			XDrawImageString(display, drawable, gc, x+tx, y,
				p, length);
			break;
		}
	}
}