[Qt-creator] switching RunConfigurations in the code

[Petr Vanek]

hi all,

my plugin exposes two types of 
ProjectExplorer::LocalApplicationRunConfiguration:

     class QorusExecutableRunConfiguration : public 
ProjectExplorer::LocalApplicationRunConfiguration
and
     class QoreExecutableRunConfiguration : public 
ProjectExplorer::LocalApplicationRunConfiguration

my idea is to switch between these configurations whenever the current 
edited document changes. Then the lookup into registered mime types 
shows what run configuration should be used.
But I cannot find how I can set the current run configuration in the 
code. I'm able to do it only by hands in the UI - MiniProjectTargetSelector.

Is there some hidden build/run target handler inside qt creator, please?

thanks,
Petr