Hi there,
I found a bug on 2.4.0 branch related to mouse scroll up/down.
# I posted this issue to FlightGear Bug Tracker but I want to post this here
since code fix is coming soon.
Most of recent Macs have trackpad or magic mouse.
The scrolling action on these devices generates SCROLL_2D event instead of
SCROLL_UP/DOWN event.
(FYI, SCROLL_UP or SCROLL_DOWN event is generated on unix and windows.)
FGEventHandler.cxx handles SCROLL_UP/DOWN event as follows:
if (ea.getScrollingMotion() == osgGA::GUIEventAdapter::SCROLL_UP)
button = 3;
else
button = 4;
Since this code implicitly handles SCROLL_2D as button 4 (means SCROLL_DOWN
button), both scrolling up and down on Mac
unexpectedly converted to scroll down button. As a result, scrolling up and
down is always treated as scroll DOWN! (or zoom out on MAP)
Patch for this is available from:
http://code.google.com/p/flightgear-bugs/issues/detail?id=403
I already tested this on Mac and works fine with trackpad.
please try this on unix and see if it won't affect unix/windows.
I believe this doesn't affect the behavior on other platforms since
osgViewer doesn't generate SCROLL_2D on unix and Windows.
Tat
p.s.
btw, is there any button assigned for SCROLL_LEFT / RIGHT?
---
Tatsuhiro Nishioka
http://macflightgear.sourceforge.net/
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