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Known issues:
* Touchpads can drag the mouse pointer using a light touch or a heavy click.
On Linux, drags using the light touch get interrupted when a key is pressed.
You'll have to press down to drag.
* No support yet for Unicode graphemes spanning multiple codepoints.
* The text cursor will always stay on the screen. This can have some strange
implications:
* A long series of drawings will get silently skipped when you hit
page-down, until a line of text can be showed on screen.
* If there's no line of text at the top of the file, you may not be able
to scroll back up to the top with page-up.
So far this app isn't really designed for drawing-heavy files. For now I'm
targeting mostly-text files with a few drawings mixed in.
* No clipping yet for drawings. In particular, circles and point labels can
overflow a drawing.
* Insufficient handling of constraints when moving points. For example, if you
draw a manhattan line and then move one of the points, you may not be able
to hover on it anymore.
There's two broad ways to fix this. The first is to relax constraints,
switch the manhattan line to not be manhattan. The second is to try to
maintain constraints. Either constrain the point to only move along one line
(but what if it's connected to two manhattan lines?!), or constrain the
other end of the line to move alongside. I'm not sure yet which would be
more useful. Getting into constraints would also make the program more
complex.
Bottomline: at the moment moving points connected to manhattan lines,
rectangles or squares can break drawings in subtle ways.
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