Re: [Gems-users] [Fwd: [GEMS] linux/gtk vs. macosx]

[Nicolas R. <nic...@jp...>]

Hi Jules,

I am running with Eclipse 3.2.1

The version of draw2d for 3.2.1.v20060921
The version of the swt.gtk.linux.x86 is: 3.2.1.v32235

To reproduce this error, I have all of the gems* projects in my
development sandbox and create an Eclipse launcher
to run a "GEMS" Eclipse environment with the gems* plugins

In the dev. sandbox, before launching the GEMS config,
I setup a breakpoint in
org.gems.designer.figures.ModelFeedbackBorder.drawConnectors (line 29)

Then, launch the GEMS config in debug mode:

1) New Plug-In Project (called: bug)
2) select 'bug' => new folder: 'resources'
3) bug/resources => New GEMS>GemsMetamodel Model (GemsMetamodel1.gemsmeta)
4) Create an "Entity" from the palette
5) The new entity is selected, with the mouse, I click on it to move it

=> You hit the breakpoint...

connector.translate(x1, y1);
g.drawPolygon(connector);  // line 29
...

At that breakpoint, inspect 'this.connector'.
It has:

bounds = null
points  = int[0]
size = 0

If I remove the prolog module, then I loose one of the coolest features
of GEMS...

-- Nicolas.

Jules White wrote:
> Hi Nicolas,
>
> I have seen this error once before from GEMS on Linux. It is really
> hard to tell what is causing it since it comes from deep within the
> Eclipse internals (on the native and not Java side). I do GEMS Linux
> testing with Eclipse 3.2 on Fedora Core 3. What version of Draw2d/GEf
> are you using? What version of Eclipse do you have? I would try
> getting the latest versions of those and see if that fixes the
> problem.
>
> Another way to fix this problem is to remove the Prolog plugin from
> GEMS. The Prolog module creates the borders that leads to this error.
> To disable the prolog module, delete the folder:
>
> org.gems.designer.dsml.kb
>
> from you Eclipse plugins directory.
>
> Thanks,
>
> Jules