#5 Athena TextIn shortened display length

[Peter Lee]

Athena's C_TextIn on Debian distro;

First, display a long C_TextIn, longer than the input
box, this displays acceptably with trailing text,
although the start of the text would be nicer.

Second, SetString the same C_TextIn using text
shorter than the input box. Only half of the text is
displayed. It is the trailing half. The text is intact
but only the last part is displayed. The cursor needs
to be moved in order to display it all.

[Peter Lee]

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user_id=1573331

vtextinc.cxx
It seems any overrun affects the insertion point for later text.
Workaround: Never let cursor overrun. If length longer than
the box size, then move cursor to start (not end). All text
will then have the start displayed correctly.