[MonoDevelop] Gtk.TextView question [SOLVED]

[Aniello Di Nardo]

> On Fri, Jul 9, 2010 at 2:57 PM, Aniello Di Nardo
> <dinardo at creasoftware.net> wrote:
>> Hi!
>>
>> I'm building a little chat mono gtk# application and I've some question
>> about the Gtk.TextView.
>>
>> I use the follow code to add a line into the Gtk.TextView widget...
>>
>> ...
>> Gtk.TextView txvMonitor = new Gtk.TextView()
>> ...
>> void addToMonitor(string textToAdd) {
>>    TextIter mIter = txvMonitor.Buffer.EndIter;
>>    txvMonitor.Buffer.Insert(ref mIter, textToAdd);
>>    txvMonitor.Buffer.EndIter.
>>    txvMonitor.ScrollToIter(txvMonitor.Buffer.EndIter, 0, false, 0, 0);
>> }
>>
>>
>> when the text fill the visible area of the Gtk.TextView widget, the 
>> scroll
>> bars do not move...
>>
>> why the refresh of the Gtk.TextView widget occour only (or any time) when 
>> i
>> click on it?
>>
>> often... the application crash when "void addToMonitor" occour! Why? 
>> There
>> is something wrong with the code?
>>
>> is possible set the background and the foreground color of the 
>> Gtk.TextView
>> widget?
>>
>> There is a more simple widget as the "single-line Entry widget", but
>> multi-line width the scroll bars?
>>
>> Thanks for any replies?
>
> Are you adding the text from a thread?
>
> -- 
> Michael Hutchinson
> http://mjhutchinson.com
>

Not directly from a thread.

So ...
There is a class "Socket" that raises the "OnDataReceived" event.
The event is listened in the main window class and text is added to the 
Gtk.TextView from the "void addToMonitor".
In the "socket" class, however, uses the following code for interact with 
System.Net.Sockets.Socket class:

...
m_pfnCallBack = new AsyncCallback (OnDataReceived)
...

this reminds me of something similar to a Thread, so I changed the previous 
code in the following code, adding the Gtk.Application.Invoke (delegate 
{...}) used for refresh the GUI's objects when there is a thread...

void addToMonitor(string sToAdd) {
    Gtk.Application.Invoke (delegate {
        TextIter mIter = txvMonitor.Buffer.EndIter;
        txvMonitor.Buffer.Insert(ref mIter, sToAdd);
        txvMonitor.ScrollToIter(txvMonitor.Buffer.EndIter, 0, false, 0, 0);
        });
}

the problem seems solved ... Thank you Michael!!!

Now... is possible set the background and the foreground color of the 
Gtk.TextView widget?

Note: in the previous code there is a wrong line:

void addToMonitor(string textToAdd) {
    TextIter mIter = txvMonitor.Buffer.EndIter;
    txvMonitor.Buffer.Insert(ref mIter, textToAdd);
    txvMonitor.Buffer.EndIter. <------------------------ this line is 
wrong!!!!!
    txvMonitor.ScrollToIter(txvMonitor.Buffer.EndIter, 0, false, 0, 0);
}