[brailleblaster] Re: MDI
- From: "John J. Boyer" <john.boyer@xxxxxxxxxxxxxxxxx>
- To: brailleblaster@xxxxxxxxxxxxx
- Date: Sat, 28 Jul 2012 08:09:20 -0500
Hi Francois,
I'm all for it. Please do what you can.
Thanks,
John
On Sat, Jul 28, 2012 at 08:15:01AM -0400, Fran�ois Ouellette wrote:
> I re-visited the issues around the New, Open and Close and it seems we
> can solve these problems if we re-work the way those functions are
> implemented. As I reported earlier, right now doing a Close sometimes
> does also an automatic New, sometimes closes the application, etc. I
> can have another attempt at re-working these issues as there seems to
> be hope to solve them without spending too much time. It would be sad
> to disable the MDI feature if we can make it work with just a little
> more work!
>
> François.
>
> On Fri, Jul 27, 2012 at 12:54 PM, John J. Boyer
> <john.boyer@xxxxxxxxxxxxxxxxx> wrote:
> > Hi Francois,
> >
> > Thanks for the information.
> >
> > Using multiple instances of Display in a single application is probably
> > a bad idea. I wonder if we would run into problems with display
> > instances if we were to start a new instance of BrailleBlaster within
> > the application.
> >
> >
> > I set up the original MDI framework, but I couldn't get it to work.
> > Later Hanxiao refined it.
> >
> > As I said in my previous message, if starting a new instance of
> > BrailleBlaster from within itself will work, that might be the better
> > approach.
> >
> > John
> >
> > On Fri, Jul 27, 2012 at 11:01:59AM -0400, Fran�ois Ouellette wrote:
> >> (warning: long post ahead!)
> >> The whole concept of multiple documents does not seem to be well
> >> implemented in BB at the moment. It seems that the same set of
> >> variables is shared among the windows and because of that we lose
> >> control of the events. I haven't changed anything to that part of the
> >> code that deals with opening and managing windows. There are
> >> discussions on the various blogs on the web regarding the use of
> >> Display versus Shell objects in SWT. It seems that some features of
> >> using multiple Displays are not supported on the Mac and I wonder if
> >> things have been simplified in order to accommodate that. I don't know
> >> who built the original model for the BB GUI, so it's difficult to
> >> understand what the approach was supposed to be when all we have is
> >> lots of java code without any embedded explication or comment.
> >>
> >> When opening new windows the document manager seems to keep some
> >> document currency pointer but the display windows do not seem to have
> >> their own threads, so data gets mixed up and shutdown events are
> >> posted to all windows at the same time. Some other products like DBT
> >> use a single frame inside which mulitple document panels get created,
> >> but it can get confusing when trying to navigate between documents as
> >> we have to bring them to the front in the same frame as all other
> >> documents. Changing the structure of the current BB will not be a
> >> simple task.
> >>
> >> My 2 cents.
> >>
> >> François.
> >>
> >> On Fri, Jul 27, 2012 at 9:56 AM, Vic Beckley <vic.beckley3@xxxxxxxxx>
> >> wrote:
> >> > I'm not sure if you are aware of this, but the MDI isn't working
> >> > correctly
> >> > at all. Here are three major problem I have found so far.
> >> >
> >> > When you have multiple documents open closing one document closes all
> >> > documents.
> >> >
> >> > If you have a document open with text and Braille, then loading a second
> >> > document with text and Braille won't load the Braille.
> >> >
> >> > If you have several documents open and try to save one of the documents,
> >> > BB
> >> > saves the wrong document. I tried to save document 2. It presented me
> >> > with
> >> > the name of document 1. I thought it just was confused about the name so
> >> > I
> >> > changed it to the name of document 2 and saved it. When I brought up
> >> > document 2 again it was actually the text of document 1.
> >> >
> >> >
> >> > Best regards from Ohio, U.S.A.,
> >> >
> >> > Vic
> >> > E-mail: vic.beckley3@xxxxxxxxx
> >> >
> >> >
> >> >
> >> >
> >
> > --
> > John J. Boyer; President, Chief Software Developer
> > Abilitiessoft, Inc.
> > http://www.abilitiessoft.com
> > Madison, Wisconsin USA
> > Developing software for people with disabilities
> >
> >
--
John J. Boyer; President, Chief Software Developer
Abilitiessoft, Inc.
http://www.abilitiessoft.com
Madison, Wisconsin USA
Developing software for people with disabilities
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