Re: [Java-gnome-developer] Using TreeView isgnals with Glade

[Andrew C. <an...@op...>]

On Sun, 2005-01-05 at 23:00 +0200, Khiraly wrote:

> The appenColumn generate COLUMN_CHANGED signal and the double-click
> generate ROW_ACTIVATED signal. So I have added an if() condition.

In my experience, some various number of signals are emitted any time
you do anything in GTK - and it can be a bit unpredictable. For example,
if you "activate" a button, a "clicked" signal will also be generated.
You get that sort of thing all through GTK. So definitely, 

>  if (event.isOfType(TreeViewEvent.Type.ROW_ACTIVATED)) {

is necessary ... [I tend to use 


  if (event.getType() == TreeViewEvent.Type.ROW_ACTIVATED) {

But I don't suppose there is any difference, is there :) 

The thing to look out for is that just because you handled the one
signal you think you are interested in, doesn't mean there are others.
In one case, I had my signal handler generating a new event which
resulted in a new signal which resulted in re-entry to that handler!
Ick!

AfC
Sydney