RE: Source Evaluation?

["Joe Pluta" <joepluta@xxxxxxxxxxxxxxxxx>]

Joe, I'm in the process of revamping the site, hosting it myself (I now have
a Linux maxhine and I've ordered a new AS/400) and creating a lot of new
content. So it will be a little while before anything new gets posted.

At the same time the code I've written I did in conjuction with a client on
a pretty specific client/server project.  Now I'm going to sit back and
rethink the object hierarchy, because I want this concept to work with
server/client as well as client/server, so that's going to require some
serious rewrite.

I hope to have a public version available in a few months, but we'll see.
It all depends on my work schedule.




> -----Original Message-----
> From: owner-java400-l@midrange.com
> [mailto:owner-java400-l@midrange.com]On Behalf Of Joe Teff
> Sent: Saturday, February 10, 2001 10:58 AM
> To: JAVA400-L@midrange.com
> Subject: RE: Source Evaluation?
>
>
> Are all these available for people to use from your site? I looked at
> it a while back but don't remeber seeing this. Sounds like you have
> some good things going here.
>
> Joe
>
> -----Original Message-----
> From: owner-java400-l@midrange.com
> [mailto:owner-java400-l@midrange.com]On Behalf Of Joe Pluta
> Sent: Saturday, February 10, 2001 12:15 AM
> To: JAVA400-L@midrange.com
> Subject: RE: Source Evaluation?
>
>
> Actually, I've already got that, Joe.  I've got an AbstractWidget
> class and
> an AbstractTableWidget.  Subclassing these are various types
> (DataTableWidget, QueryDataWidget, PromptWidget, and so on) which all use
> the toString() method to return a UI data stream.
>
> The AbstractWidget also supports a variety of utility methods for
> debugging
> and viewing, as well as providing hooks for loading data from an HTTP POST
> (for bidirectional communications with the model).
>
> Next, I've got an AbstractFormatter which is used by the widgets
> to actually
> build the appropriate stream.  I've got an HTMLFormatter which subclasses
> AsbtractFormatter to supply HTML-specific tags.  I can then create
> WMLFormatter or XMLFormatter or (if I felt really crazy) X5250Formatter
> which could return a 5250 data stream.
>
> However, the data returned by the HTMLFormatter is pretty
> hardcoded.  What I
> want is the ability to dynamically change the format of the output.  And
> this is where the HTMLStyle object will come into play.  By attaching an
> HTMLStyle object to a widget, I can control its output.  For instance, the
> AbstractTableWidget will allow me to attach an HTMLStyle to the
> table header
> and to the table cells, as well as one to the overall table itself.  The
> FormattedFieldWidget will have different styles for input-capable,
> input-capable with error, output-only and output-only with error.  In each
> case, the HTMLStyle object will be used during the formatting phase to
> create an inline style string.
>
> This will allow ultimate flexibility for the UI designer, and
> will afford a
> very high degree of separation of presentation and business
> logic.  However,
> whenever I've added such flexibility to my designs, I've made it a rule to
> allow two things: a reasonable set of defaults, and a way to define those
> defaults in an .ini file (or .properties file, as the case may be).  This
> way, a beginner can toss something together with no particular worry about
> the end result, yet still get something worthwhile.  At the same time, a
> designer can create a set of corporate standards and store them in the
> .properties file to be used as the base for all applications.
>
> And it's this final piece of the design that I'm trying to address when I
> create the Categories object fed from the .properties file.  I've already
> got the style stuff in place - and you haven't lived until you've seen a
> table with yellow Arial bold letters on a green background with a 5-pixel
> red border <grin>.  Now I just have to put the defaults in place.
>
> Joe
>
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