on_picked

[Jimmy Johnson]

I now have a way to notify the appropriate EV_MODELs in a system when an object is picked (i.e. right clicked, grabbing a pebble.)  The problem is that the changes to a model, such as changing the color of a model, does not show up until the pick-and-put operations is over.  I know the features are called in the correct sequence, but the screen is not updated until the pick-and-put is over.  It seems the pick-and-put is preventing a redraw.

How do I force a redraw (a projection) NOW, before the pick-and-put hijacks the system?

jjj

[rfo amalasoft.com]

Hi Jimmy

You can ask the main loop to process all pending events.  Try EV_APPLICATION.process_graphical_events.

On another front, for handy asynch triggers, you might want to experiment with do_once_on_idle.  It really does come in handy from time to time.

R

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From: eiffel...@googlegroups.com <eiffel...@googlegroups.com> on behalf of Jimmy Johnson <eiffe...@gmail.com>
Sent: Sunday, June 9, 2024 2:51 PM
To: Eiffel Users <eiffel...@googlegroups.com>
Subject: [eiffel-users] on_picked

 

I now have a way to notify the appropriate EV_MODELs in a system when an object is picked (i.e. right clicked, grabbing a pebble.)  The problem is that the changes to a model, such as changing the color of a model, does not show up until the pick-and-put operations is over.  I know the features are called in the correct sequence, but the screen is not updated until the pick-and-put is over.  It seems the pick-and-put is preventing a redraw.

How do I force a redraw (a projection) NOW, before the pick-and-put hijacks the system?

jjj

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[Jimmy Johnson]

I just tired process graphical events and no change.  The model still does not get painted until after the pick ends.

jjj

[rfo amalasoft.com]

Hmmm.  Might need to post some kind of continuation even then (a la do_one_on_idle) to let go of the thread.

R

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From: eiffel...@googlegroups.com <eiffel...@googlegroups.com> on behalf of Jimmy Johnson <eiffe...@gmail.com>

Sent: Sunday, June 9, 2024 5:21 PM
To: Eiffel Users <eiffel...@googlegroups.com>
Subject: Re: [eiffel-users] on_picked

 

To view this discussion on the web visit https://groups.google.com/d/msgid/eiffel-users/b75bf064-7a6f-4b78-acd0-a4119adc344en%40googlegroups.com.

[Jimmy Johnson]

See post about EV_MODEL_WORLD_CELL.

jjj