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how does GEF interpret user actions to REQUESTs? [message #178221]

Tue, 19 April 2005 06:22

memorialday

Messages: 37
Registered: July 2009

Member

is it the view's responsibility to know which RESPONSE it should send
to when an UI interaction occurs?

can someone explain what happens in GEF behind a user opertion(for example
, dragging a handle to resize a Figure). since the REQUEST is just a
constant
,where does GEF get the mouse position and keyborad state?

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Re: how does GEF interpret user actions to REQUESTs? [message #178285 is a reply to message #178221]

Tue, 19 April 2005 14:08

Eclipse User

Originally posted by: none.us.ibm.com

A ResizeTracker maintains this information and passes it using a subclass of
Request.

"unknown" <iunknown918@hotmail.com> wrote in message
news:f781e704ad695424ee6858ee8522088f$1@www.eclipse.org...
>
> is it the view's responsibility to know which RESPONSE it should send
> to when an UI interaction occurs?
>
> can someone explain what happens in GEF behind a user opertion(for example
> , dragging a handle to resize a Figure). since the REQUEST is just a
> constant
> ,where does GEF get the mouse position and keyborad state?
>

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Re: how does GEF interpret user actions to REQUESTs? [message #178292 is a reply to message #178285]

Tue, 19 April 2005 16:25

memorialday

Messages: 37
Registered: July 2009

Member

thanks for ur reply.
but can u explain in more detail?
what happens when user resizing a Figure?
how to know which editpart should be activated?
how to get the handler of the Figure
how to translate mouse gestures into REQUEST and manipulating the handler
which resulting the resize of the Figure?
so many details unclear to me , can u help me?

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