Hello,
I'm currently designing objects for Dia, that can be linked and I'm
wondering if its possible to catch events (like cut or delete) to avoid
technical problems ?
I explain myself. I have a Box (first object) on which I can add
Connector (second object). This second object should not exist whitout
being on a Box. But when the user supress a Box its Conectors still exist.
I've seen in the sources that DiaObjects have parent/childrens
attributes. Will it solve the problem if I used these instead of my own
current lists ?
Another related problem, that I have, is I can't forbid the user to copy
or cut the connector and paste it anywhere on the diagram (major problem
for me if he does not paste it on a Box...). The "copy" problem : if I
return NULL in the copy function of the Connector Dia crashes. The "cut
event" one : I haven't find how to catch the event yet.
I've find some trick to delete unwanted copied Connectors (put a flag on
them the they suppress themselves). But I still can't find any solution
to catch these delete / cut events.
Thanks in advance,
Camille MAURICE
ATIM
Thales Services
Engineering & Process Management
Domaine de Corbeville
91404 ORSAY - FRANCE
PS : Please excuse my awful English
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