Thanks. I found the way to do it following your advise.
2012/2/22 Weng Xuetian <wen...@gmail.com>: > 在 2012年2月22日 星期三 12:59:58,Simone Gaiarin 写道: >> I'm writing a plasmoid to control redshift. >> Redshift is a program that change the colour temperature of the monitor. >> >> Here you can find the current plasmoid I wrote: >> http://kde-apps.org/content/show.php/Redshift+plasmoid?content=148737 >> >> The current plasmoid span a redshift process from inside of it, so if >> I create two plasmoids they span two different process that create >> problems each other. >> >> What I want is create a plasmoid that can control this process through >> a dataengine, in such a way there is only one process running, >> controlled by multiple plasmoids. >> >> When the user click on the plasmoid it should be able to start and >> pause the process. So I need to create a service that perform the >> start/stop operations on the process. >> >> If the configuration is changed the process needs to be restarted. >> So I have to think about the correct way to connect the config changed >> event to the restart operation. >> >> I hope I've been clear enough. > So, what I think about this like this: > 1. Create a dataengine, with only once source. (For your case) > 2. Abstract all your need to interact with the process as dataengine service. > Dataengine code will be the only code that interactive with the process > directly. > 3. Talk with the dataengine with the ServiceJob > 4. If some data need to be updated, store the data into data engine. > > You could take a look at now-playing, i > https://projects.kde.org/projects/kde/kde- > workspace/repository/revisions/master/show/plasma/generic/dataengines/nowplaying > > And see how the ServiceJob works.(for nowplaying case, play, pause, stop the > player). > > _______________________________________________ > Plasma-devel mailing list > Plasma-devel@kde.org > https://mail.kde.org/mailman/listinfo/plasma-devel > _______________________________________________ Plasma-devel mailing list Plasma-devel@kde.org https://mail.kde.org/mailman/listinfo/plasma-devel