Cycling 74 » Topic: Text Editor without dirty bit

Text Editor without dirty bit

Siska Ádám — Tue, 16 Aug 2011 08:41:19 +0000

Dear Developers,

I’m developing a non-UI external that extracts the spectral peaks and does envelope following based on the content of a given buffer. During this process, I’d like to show a text editor window with the actual analysis and let the user refine the results manually before proceeding. My problem is that by using the suggested way of the SDK (creating a text editor with object_new(CLASS_NOBOX, gensym("jed"), (t_object *)x, 0) and then implementing the edclose method), if I modify the content of the window (so that I set the dirty bit) I’m always getting a popup window asking me whether I wanted to save the text file or not when I close the text editor. Is there a way to create a text editor that wouldn’t care for the dirty bit?

Thanks,
Ádám

Re: Text Editor without dirty bit

danieleghisi — Wed, 17 Aug 2011 15:08:07 +0000

I’m doing this by adding an okclose method, like this:

void yourobj_okclose(t_yourobj *x, char *s, short *result)
{
*result = 3;
}

Don’t ask me the reason for the 3: I probably found it somewhere in the sdk, but I don’t remember where :-)

Daniele

Re: Text Editor without dirty bit

Luigi Castelli — Wed, 17 Aug 2011 17:50:44 +0000

Here is the code that calls the ‘okclose’ method.

JKC was nice enough to post it in some other thread.

sprintf(msg, "Save changes to "%s" before closing?", filename->s_name);
// give our owner a chance to take control
okclose = zgetfn(p->v_owner, gensym("okclose"));
if (okclose) {
	short result = 0;	// changed from long to short to fix ppc bug
	object_method(p->v_owner, gensym("okclose"), msg, &result);
	switch (result) {
		case 0:		/* normal thing */
		case 1:		/* they changed the string */
			break;
		case 2:		/* don't put up a dialog, clear dirty bit */
			object_attr_setchar(p->v_owner, ps_dirty, 0);
		case 3:		/* don't put up a dialog */
			goto skipalert;
		case 4:		/* act as though user "cancelled" */
			return (void*) -1;
		default:
			break;
	}
}
res = wind_advise((t_object*) p, msg);
switch (res) {
	case ADVISE_SAVE:
		if (jwind_save(p))
			return (void*) -1;		// error saving, treat as cancel
		break;
	case ADVISE_CANCEL:
		return (void*) -1;
	case ADVISE_DISCARD:
		object_attr_setchar(p->v_owner, ps_dirty, 0);
		break;
}

Cheers.

- Luigi