* Finally rewrote the filthy, busy-looping, mouse tracking in Tracker.
The new asynchronous tracking doesn't lock the view and makes desktop
replicants happy while clicking and dragging around. Fixes #880, #7241
and certainly other tickets, that i will revisit, about refresh locks
on the desktop or mouse related bugs. Based on a reusable MessageFilter and the
recent B_MOUSE_IDLE message. Some parts are ported from the old code
and could use further simplification.

There should be no intentional user fonctional change, except:
- slightly bigger threshold radius, shorter duration thresholds
(= 1.0 x the system-wide doubleclick setting)
- not reimplemented: quickening threshold when holding shift while dragging
a pose over a destination pose.

Some parts are ported from the old code and could use further simplification.
There is one known minor regression with autoscrolling while
rect-selecting but that will be better fixed with some changes to the
autoscroll code. Will address that ASAP. As for the unknown regressions,
please test :)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41892 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Finally rewrote the filthy, busy-looping, mouse tracking in Tracker.
The new asynchronous tracking doesn't lock the view and makes desktop
replicants happy while clicking and dragging around. Fixes #880, #7241
and certainly other tickets, that i will revisit, about refresh locks
on the desktop or mouse related bugs. Based on a reusable MessageFilter and the
recent B_MOUSE_IDLE message. Some parts are ported from the old code
and could use further simplification.

There should be no intentional user fonctional change, except:
- slightly bigger threshold radius, shorter duration thresholds
(= 1.0 x the system-wide doubleclick setting)
- not reimplemented: quickening threshold when holding shift while dragging
a pose over a destination pose.

Some parts are ported from the old code and could use further simplification.
There is one known minor regression with autoscrolling while
rect-selecting but that will be better fixed with some changes to the
autoscroll code. Will address that ASAP. As for the unknown regressions,
please test :)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41892 a95241bf-73f2-0310-859d-f6bbb57e9c96