On Sat, Feb 23, 2013 at 9:39 AM, John Tall <[email protected]> wrote:
> However, every now and then the progress bars has to be updated and > this is where I don't follow. I don't get how I should do to properly > update the value of a specific row. > I would put a pointer to your job object in the TreeModel set up a Glib::signal_timeout. In the timeout, iterate through your treemodel and use iter->get_value(columns.job)->get_progress(); Be sure to disconnect the signal_timeout when there are no jobs in progress. And you should only have one of these timeouts, even if you have several jobs running. Using signal_timeout for updating progress bars usually results in a much smoother looking result--especially in this case, where you do have to iterate through on average half the treemodel for each update. Its up to you to choose a sensible period. 50 ms might be sensible for a job that completes in under a minute. Using signal_timeout().connect_seconds() might be more reasonable if you're sure it will take more than a minute.
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