[boost] Re: Possible Boost addition; Ditto framework

From: Martijn W. van der Lee (gmane_at_[hidden])
Date: 2002-11-08 16:52:29

Hi,

You are absolutely right, I wonder how this one got through. The bug is
fixed and committed into CVS and I also noticed another bug which I'll fix
tomorrow.

regards,
Martijn van der Lee

> Hi Martijn,
>
> I am very interested in your library, and took a few minutes to look at
it.
> I have one comment: in table<T>::insert(), you allocate a new T(d). But
you
> don't seem to de-allocate it in table<T>::erase(). Isn't this a memory
leak?
>
> OTOH, maybe the 10 minutes I spent looking at the code weren't enough to
> understand it...
>
> Best regards.
> --Remy Blank
>
>
> On Thu, 7 Nov 2002 19:30:20 +0100, "Martijn W. van der Lee"
<gmane_at_[hidden]> wrote:
> > Hi,
> >
> > I've been quietly working on a framework which I think could make a nice
> > addition to Boost. Currently it compiles on Borland C++ 5.5.1 and GCC
2.95.3
> > (Dev-C++/MinGW) and seems to be stable (though the testcases are not
100%
> > implemented yet).
> >
> > In short it is an in-memory generic table and view framework where a
"table"
> > class contains records similar to a database table and "view" classes
> > contain sorted and filtered (by means of functors) version of that
table.
> > These views are updated dynamically so adding a record to the table will
> > automatically make it available in all views.
> > Furthermore, views can be stacked to allow multiple levels of
refinement,
> > single records can be selected by using a "tracker" class and events can
be
> > triggered on any change in the frameworks' classes by means of a
"monitor"
> > class.
> >
> > The original purpose of this library was to replace Borlands' VCL
mechanism
> > which requires data to be located inside the class handling the visual
> > layout, this made it extremely difficult to have multiple separate views
of
> > the same set of data, the Ditto framework succesfully eliminated this
> > problem at the cost of recreating the visual components but with the
benefit
> > of performance, memory requirements and especially code quality.
> >
> > The project is published at sourceforge; http://ditto.sourceforge.net
but
> > the site is a bit outdated and documentation is especially lacking, the
> > current version in CVS is stable and can be downloaded from the project
page
> > at http://sourceforge.net/projects/ditto
> >
> > There are currently still some minor issues with the library (mostly the
> > need to specify a dummy filter functor to views when no filter is
required)
> > but with some help (hint! hint!) I believe the framework could be in a
> > finished state within weeks.
> >
> > regards,
> > Martijn van der Lee
> >
> >
> >
> >
> >
> >
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