[Gtk-sharp-list] Scaling Gdk.Pixbuf in a thread

[Christopher David Howie]

On 11/05/2010 06:18 AM, blue_bob wrote:
> I'm afraid my entire approch is wrong so if anyone can come up with a tip I
> would be very grateful.

It may not be wrong, but there's an approach we can use to make it flow
better.  I'm not going to copy all of your code and rewrite it, but I'll
give you the basic skeleton code.

public void DoRescale() {
    // Assuming that you have access to all of the job data (pixbuf,
    // new size, etc.

    new Thread(delegate () {
        // Do the resize here.

        Application.Invoke(delegate {
            // Draw the pixbuf here; this will be run on the GTK+ main
            // loop thread.
        });
    }).Start();
}

Note that anonymous methods have access to locals in their defining
method, so you won't need to create a "job" class/object to ferry them
around; the compiler will actually do that all for you.

-- 
Chris Howie
http://www.chrishowie.com
http://en.wikipedia.org/wiki/User:Crazycomputers

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