Font Scaling 3	by Bob Ebert and Bennett Battaile
Updated for NTK 1.0 and MP 110 by Todd Courtois

Demonstrates how to scale fonts.  Just calling ScaleShape on the shape
produced by MakeText wonÕt work: it only scales the rectangle around the
actual graphic text. Instead what we do is create a picture shape from the
text shape, then call ScaleShape on the picture.  This works, but of course
you get grainy picture scaling.

Before we pass the text shape off to MakePict to make a picture shape, we
first enclose the text shape in a framing rectangle. If you donÕt put the
framing rectangle around the text shape, the text shape will be clipped to
the rectangle specified in MakeText, which chops off descenders.

Because of oddities in the text scaling algorithm, the trailing letter may
be clipped from a line of text at some widths.  Padding is added to the text
bounds rectangle to allow for this.

Each pen stroke stretches the text continuously.  After one stroke unit has
complete, we change the text shape so that the next time the user puts the
pen down, a new text shape appears in the same bounding rect as the previous
text shape.