Date: Mon, 10 Nov 2003 11:50:58 +0100
From: Claudio Sacerdoti Coen <sacerdot at cs.unibo.it>
To: Jacques Garrigue <garrigue at kurims.kyoto-u.ac.jp>
Cc: lablgtk at kaba.or.jp
Subject: Re: GTree row selection event
Message-ID: <20031110105058.GA19281 at cs.unibo.it>
References: <20031107100532.GA17659 at cs.unibo.it> <20031110104118V.garrigue at kurims.kyoto-u.ac.jp>
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In-Reply-To: <20031110104118V.garrigue at kurims.kyoto-u.ac.jp>

 Thank you Jacques.
 
> Indeed, the documentation just says it is called when the state of a
> row has to be toggled.

 Unfortunately.

> Have a look at examples/tree.ml.

 I had of course!

> To see the new selection, you should use #selection#connect#after#changed.

 I do. But still it has some problems:

  1. no event structure (I can not detect a double-click)
  2. the documentation of Gtk says that the event may be raised multiple
     times and/or it may not be raised at all (depending on the selection
     mode etc.). Perhaps I misunderstood the specification, but anyway it
     does not seem very reassuring.

> The rest of the behaviour is at it should be in `BROWSE mode.
> If you want to start from an empty selection, you should use `MULTIPLE mode.
>   view#selection#set_mode `MULTIPLE

 Ah, OK. I missed it. Thanks.


 My "solution" for now is the following:

  1. I intercept #selection#changed to detect the single click
  2. I intercept #event_ops#button_pressed to detect the double click
  [ I use a reference to pass information from the single-click callback
    to the double-click one ]

 It is not very nice but I can live with it.

					Cheers,
					C.S.C.


-- 
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Real name: Claudio Sacerdoti Coen
PhD Student in Computer Science at University of Bologna
E-mail: sacerdot@cs.unibo.it
http://www.cs.unibo.it/~sacerdot
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