[news.eclipse.platform.rcp] Re: [Error] org.eclipse.swt.SWTError: No mor

[Ed Merks <merks@xxxxxxxxxx>]

Shawn,

Comments below.

Shawn Spiars wrote:
> Ed,
>
> Yes, I think it may have been a human error, rather than a machine 
> generated error. It was a couple of years ago so I don't remember
> the details.
>
> Sometime I would be happy to talk to you about why I dislike Model 
> Driven Architecture
I can imagine the reasons (I've heard so many over the years) but I'm 
highly unlikely to agree.  :-P
> and why I believe that models and machine generated code (EMF) cannot 
> create user-friendly, intuitive, or easy to maintain user interfaces.  
I totally disagree.  If you can write it by hand, you can machine 
generate it.  It's all about automating patterns and best practices.  I 
think many developers just have a pathological need to do menial work in 
order to keep their sense of control intact.  Those were the people who 
figured assembler was the only way that give them the control they 
needed.   Let's see how you would write code that notifies as things are 
changed, including changes being made to a list.  I'll bet your 
intuition will change once you've figured out how to do it...
> User interface development is an art, not a science.
But writing getters and setters that match, implementing interfaces and 
implementations that correspond, supporting a factory pattern for 
creating them, and so on, is all menial work.  While some may be 
satisfied doing that over and over, others will rise above it in more 
ahead more quickly.
> It's so much more than just a bunch of model objects stuffed in a tree
> or table with actions attached.
Indeed, but far too much time is spent on menial things rather than the 
higher level tasks. If you can draw a box X with nested box y of type 
String and this implies an interface X with a getY/setY as well as an 
implementation class for it, with a y field to store the value, and a 
factory method to create an X, all that crap is not art, it's menial.  I 
used to be on your side of the fence. Drawing boxes with labels used to 
seem incredibly stupid to me, but I realize now that the only thing 
stupider is to do ten times as much work to arrive at the same implied 
design as was expressed by the stupid picture.

I'll be at EclipseCon, you're welcome to try to argue your point.  
Probably the Modeling BoF won't be the most receptive audience though.  
Given that you can model any Java interface with Ecore, including 
generics, it will be hard to make the case that there is something you 
can't do.  But it will be interesting to see if you have a new argument 
I haven't heard before.  I'm always excited to hear a new reason with 
actual substance.  :-P
> Shawn
>
>
> Ed Merks wrote:
> > Shawn,
> >
> > EMF uses registries for the image management.  Was it a programming 
> > error on your part or is there something being overlooked in EMF?
> >
> >
> > Shawn Spiars wrote:
> > > Michael,
> > >
> > > You can use sleak to track the creation and disposing of SWT resources.
> > > It helped me find an image that was being created over and over in some
> > > EMF factory or adapter whatchamacallit.
> > >
> > > http://www.eclipse.org/swt/tools.php
> > >
> > > Shawn
> > >
> > > Ed Merks wrote:
> > > > Michael,
> > > >
> > > > Gosh, I'm not sure how best to track these things.  There is indeed 
> > > > a system wide limit as well as a per process limit, if I remember 
> > > > previous postings correctly.  Hopefully someone will have details, 
> > > > or googling will turn them up
> > > >
> > > >
> > > > Michael Heiß wrote:
> > > > > Hi,
> > > > >
> > > > > For images i use the ImageRegistry so i think this cant be the 
> > > > > source.
> > > > > How can i detect widgets that i do not dispose properly?
> > > > >
> > > > > When i look in the task manager i see the following result:
> > > > > memory: 46.200 K Handles 869
> > > > > UserObjects: 1150
> > > > > GDI-Objects: 1120
> > > > >
> > > > > What is the limit on a computer running windows xp?
> > > > >
> > > > > Best Regards
> > > > > Michael