RE: collaborative GUI

• To: "'visad@xxxxxxxxxxxxxxxx'" <visad@xxxxxxxxxxxxxxxx>
• Subject: RE: collaborative GUI
• From: "wang x." <x.wang@xxxxxxxxxxxxx>
• Date: Sat, 4 Feb 2006 16:47:36 -0000

Hello Curtis,

Thank you for the reply.

Your email was really helpfull, it will solve my problem. 
After analysed the source codes of SS part, I roughly got idea how to finish
the collaboration in my project.

Thanks again

Mike





>Hi Mike,

>>Yes, I've gone through all the tutorials suggested above and invoked 
>>most of the mothods in my application. I mainly use the visad built-in 
>>collaboration support so far. Based on RendererControl, all graphics 
>>widgets associated with Controls and ScalarMaps worked very well.
>>
>>I found that when a DataReference has been removed in Host, Clients 
>>didn't response. After investagation on VisAD, it seems that 
>>REFERENCE_REMOVED event was not sent to clients. So I made some changes 
>>to VisAD system to make this part work. Although I knew this may bring 
>>some trouble later on, but I have no better choice at this moment.
>>
>>To those self-developed graphics widgets (e.g. ComboBox, Button etc.) 
>>which neither belongs to Controls nor ScalarMap. I still have no idea 
>>how to make them collaborative.
>>  
>>
>
>The VisAD SpreadSheet had some similar requirements. I implemented a 
>fairly general way to send messages back and forth between server and 
>client, to keep things synchronized that were not already handled by the 
>built-in VisAD collaborative display logic.
>
>Take a look at the VisAD SpreadSheet, in package visad.ss. In 
>particular, check out visad/ss/BasicSSCell.java starting at line 283 
>(the part labeled "COLLABORATION"). The sendMessage and receiveMessage 
>methods handle communication. It should be possible to adapt their 
>functionality for your needs, including synchronization of custom 
>widgets built with Swing components.
>
>-Curtis