Re: "changed" signal

[muppet <scott asofyet org>]

On Mar 6, 2005, at 3:51 AM, Ari Jolma wrote:

> The custom widget inherits from ScrolledWindow and contains an 
> EventBox, which contains the Image. A strange thing is that I can hook 
> up to button_press-event and motion_notify_event of the EventBox, but 
> I need to connect the key_press_event to $self (ScrolledWindow) to 
> catch it.

This is usually because either the widget is not set up to accept key 
press events or focus, or is not the currently focused widget in the 
window.


> Anyway the widget seems to work now. The code is public (it is already 
> now in cvs.sourceforge.net:/cvsroot/libral as Gtk2-Geo-Raster) it 
> could be of interest also outside my use with Geo-Raster (which is 
> also in sourceforge and in CPAN), with normal image files.

Excellent.

> Maybe such widget already exists, I did not check, I have to admit.

Dov Grobgeld has perl bindings for a C image viewer widget that does 
most of what it sounds like you want:

    http://imagic.weizmann.ac.il/~dov/freesw/gtk/gtk-image-viewer/

It's natively scrollable (e.g., just add it to a Gtk2::ScrolledWindow) 
and handles zooming and panning.

--
"Quit hittin' yourself!  Quit hittin' yourself!"
   -- Elysse, playing with a newborn baby.