[Glade-users] Animation
Tristan Van Berkom
tristan.van.berkom at gmail.com
Wed Oct 15 15:10:31 EDT 2008
On Wed, Oct 15, 2008 at 3:04 PM, PEYMAN ASKARI <paskari007 at yahoo.ca> wrote:
> One thing I can't get my head around is how to set up a loop to run along
> side the event driven nature of GUIs.
You dont ! ... when in doubt, always call "return" :D
> For example, I have a simulator which simulates neurons. now I have files
> which implement all the neurons, and synapses, and updates them. When the
> user clicks 'next' it figures out which ones generate action potentials, and
> then the drawing area changes that neurons color from black to red. Pretty
> standard stuff
>
> But if the user clicks 'Play', then the simulator goes into a loop, and
> checks for action potentials continuously. The problem with this is that
> control is not returned to the GUI until the loop exits, and therefore the
> GUI is never updated it.
>
> Am I going to have to make my program multithreaded, or is there a way of
> having GTK call the function every 1 second for example.
g_timeout_add().
Cheers,
-Tristan
NOTE: in a time critical situation, you may be taking measures like:
- implementing your time critical code in a thread
- locking in memory on the said process.
- telling the kernel that your time critical thread has a higher
priority than the GUI...
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