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#include <X11/Intrinsic.h>
#include <X11/StringDefs.h>
#include "TabString.h"
/*
* Like TextWidth, 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.
*/
int
XfwfTextWidth(font, str, length, tabs)
XFontStruct *font;
String str;
int length;
int *tabs;
{
register char *p, *ep;
register int tx, tab, rc;
tab = tx = 0;
if (length == 0) return 0;
for (p = str; length; )
{
ep = strnchr(p, '\t', length);
if (ep && tabs)
{
tx = tabs[tab++];
length -= ep - p + 1;
p = ep + 1;
}
else
{
rc = XTextWidth(font, p, length);
if (rc < 0) return rc; else return rc + tx;
}
}
}
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