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1994-08-27
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Subject: Re: text marks & sliders
Date: Mon, 27 Jun 1994 10:26:09 +1000
From: Warwick Allison <warwick@cs.uq.oz.au>
Precedence: bulk
Timothy Miller wrote:
>) If the mouse is placed over an editable text field, the mouse MUST change
>) to a TEXT CURSOR while the mouse is over it. It must be changed back to
>) its original form when moved away.
>
>This isn't an easy thing to do. It requires constant tracking of the
>mouse position. Do you have an easy way to do this?
Actually, you just need to use the rectangle area tracking events.
Using just two rectangles, it is possible to track any number of
rectangles. It is not trivial to implement and maintain this though.
For example, under X11 windows, this is part of the OS.
>I just realized that I don't know how to build an object tree from
>scratch. Hmmm.
It's very very easy. Just keep all the links correct. The last child's
ob_next points to its parent. The very last object in the form has the
LASTOBJECT bit set.
--
Warwick