Define a list of "tracking points" - coordinates that should be
translated while reflowing.
Add the cursor coordinates to this list.
When a coordinate have been translated, it is removed from the
list. This means we don't have to create a copy of the 'cursor'
coordinate struct.
In reset, we allocated new rows for all the currently visible
lines. We did **not** however, free the 'old' rows.
Fix by not explicitly allocating new rows, but instead allocating
uninitialized rows when needed, and then explicitly erasing the row.
If there already was a row allocated, it is simply erased. If there
wasn't, the a new line is malloc:ed, and then erased.
All are printf() formatter related. Even if a variable is e.g. a
'short', when used in an expression like '<variable> - 1' it is
promoted to an 'int'.
Closes#16
Before, we converted each axis event's scroll amount to an integer and
scrolled that many lines.
However, axis events are speed sensitive - very slow scrolling will
result in events with a scroll amount that is < 1.0.
For us, this meant we never scrolled a single line. You could slow
scroll all day if you wanted, and still we would never scroll a single
line.
Fix this by aggregating the scroll amount from axis events until the
scroll amount is > 1.0, and then scroll.
This function extends an existing selection in the following way:
If the extension point is *before* the upper boundary of the current
selection, extend the selection upwards.
If the extension point is *after* the bottom boundary of the current
selection, extend the selection downwards.
If the extension point is *inside* the current selection, shrink the
selection such that the new size is maximized. This means we move the
*closest* start/end point from in the current selection.
This enables user mappings for the left mouse button with click count
> 3
I.e. it is now possible to create custom quad-click mappings (except
we don't yet support this in footrc).
