On 28/08/12 02:48, Luiz Americo Pereira Camara wrote:
Back in 2010, in the thread about observer support in fcl, i asked if the actions would be customizable so i could, e.g., notify/observe if a child was added or removed in a tree structure. The answer was yes.
I've emailed Michael 2-3 weeks ago about a previous mailing list discussion about Observer support too - which I concluded as will be accepted, Michael just needs time to commit his changes. Adding support for Observer into base RTL classes (not FCL). Any extra resources will only be used when the Observer functionality is actually requested, by the developer, it can't break any existing code because no such functionality existed before etc. Michael said it was "again under discussion" behind closed doors, but he will notify me of the outcome.
Myself, and I know Michael van Canneyt too, would really like Observer support in base RTL classes. This is immensely useful, and means other downstream features like a total replacement for db-aware components (which Michael also started on already) could be implement in projects like Lazarus, fpGUI etc. I can already use the latter to some degree, with the help of tiOPF, but sometimes I want other observer functionality in my apps too, or don't want to depend on tiOPF, and having to created descendants of base RTL classes defeats the whole point.
The names of the TFPObservedOperation are not consistent:
A valid point, which I actually never noticed before. Regards, - Graeme - _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
