dsp-gui object getting notified on patcher modifications
Feb 19 2011 | 4:38 pm
hi,
somehow my object doesn't get notified on patcher modifications(resizing the patcher, switching to presentation view). it's a dsp-gui object, i tried a lot of variations of getting the patcher and registering it to my object. it has a hidden second gui object similar to the scripto example, and there the notifcation works just fine. any ideas?
myobject *x = NULL;
t_dictionary *d=NULL;
long boxflags;
if (!(d=object_dictionaryarg(argc,argv)))
return NULL;
x = (myobject *)object_alloc(s_note_class);
boxflags = 0
| JBOX_DRAWFIRSTIN
| JBOX_NODRAWBOX
...
...
jbox_new((t_jbox *)x, boxflags, argc, argv);
x->p_obj.z_box.b_firstin = (void *)x;
dsp_setupjbox((t_pxjbox *)x,2);
t_object *mypatcher;
mypatcher = jbox_get_patcher((t_object *)x);
//object_obex_lookup(x, gensym("
object_attach_byptr_register(x, x, CLASS_BOX);
object_attach_byptr_register(x, mypatcher, CLASS_NOBOX);
object_attach_byptr(x, x->arrangeView);
jbox_ready((t_jbox *)x);
- Feb 19 2011 | 6:58 pmHi there,this is fairly simple but not as simple as it seems.1 - Generally the patcherview is not immediately available to you when the object is created because a patcher is being read from disk. So you cannot attach to the patcherview in the new_method without using proper deferring functions.2 - In UI objects (and ONLY in UI objects) our life is made a little bit easier by the existence of two optional methods:
patcherview_vis() patcherview_invis()So add these two methods to your class like this:class_addmethod(c, (method)yourobj_patcherview_vis, "patcherview_vis", A_CANT, 0); class_addmethod(c, (method)yourobj_patcherview_invis, "patcherview_invis", A_CANT, 0);3 - attach to the patcherview in patcherview_vis() and detach in patcherview_invis():void yourobj_patcherview_vis(t_yourobj *x, t_object *patcherview) { object_attach_byptr(x, x->arrangeView); } void yourobj_patcherview_invis(t_yourobj *x, t_object *patcherview) { object_detach_byptr(x, x->arrangeView); x->arrangeView = NULL; }Notice that because the current patcherview is passed as an argument to the two methods, you might not need to keep a pointer in your data structure, but that's really up to your needs...Let me know if you manage to get it working...Best- Luigi - Feb 20 2011 | 12:44 pmyou're welcome, Vanille...BTW, I am not 100% sure if you need to register the patcherview or just attach to it. What makes you say that you don't have to register it ?- Luigi
- Feb 20 2011 | 2:41 pmHi Luigi, thanks very much.. works fine, cheers, tom
