abom / linux-whiteboard

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Ideas of multiple control schemes #10

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago
Since hard-coding anything in the code is inflexible and cumbersome for
more than one scheme. I propose using a config file to define how it works.
Here is an example:

[scheme 1]
move_tolerance       50
wait_tolerance       500
ir_on,ir_off         mouse_down,mouse_up
ir_on,move,ir_off    mouse_down,move,mouse_up

This is how it works currently: when user turns the IR on, it simulates a
mouse_down event. If the IR moves without being turned off: it also moves
the cursor, which simulates a click-and-drag event.

The move_tolerance is for how long the IR moves from the first point of
contact (IR on) to consider it a 'move' event (because the IR is very
unstable). wait_tolerance is for how long the IR stands still (relatively
of course, within the boudary of move_tolerance) to consider it a 'wait'
event, which is used below.

[scheme 2]
ir_on,wait,ir_off            mouse_2_down,mouse_2_up // the right button
ir_on,ir_off                 mouse_down,mouse_up     // same as #1
ir_on,move,ir_off            mouse_down,move,mouse_up

Once again, using C in this case makes the code significantly harder to
write and more error-prone. If I wouldn't receive any answer to my previous
statements about C++ from you, I would implement the next thing in C++ and
see how it goes.

I hope to finish a prototype soon.

Original issue reported on code.google.com by vanhtu1...@gmail.com on 26 Jan 2008 at 11:36

GoogleCodeExporter commented 9 years ago

Original comment by vanhtu1...@gmail.com on 31 Jan 2008 at 9:45