Returns the extent of the given str. Tab expansion and
carriage return processing are performed.
<p>
The <em>extent</em> of a str is the width and height of
the rectangular area it would cover if drawn in a particular
font (in this case, the current font in the receiver).
</p>
@param str the str to measure
@return a point containing the extent of the str
@exception SWTException <ul>
<li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
</ul>
Returns the extent of the given str. Tab expansion and carriage return processing are performed. <p> The <em>extent</em> of a str is the width and height of the rectangular area it would cover if drawn in a particular font (in this case, the current font in the receiver). </p>
@param str the str to measure @return a point containing the extent of the str
@exception SWTException <ul> <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> </ul>