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rectangle rendering artifact [message #166145]

Thu, 20 December 2007 23:49

Norbert Schöpke

Messages: 63
Registered: July 2009

Member

This is a multi-part message in MIME format.
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I get a thin greyish line on top of every standard rectangle I use.
It looks like a border or shadow (see attached screenshot), yet I can't seem to make it disappear.
It even shows when the rectangle is not filled and has no outline, i.e. should be transparent.
This is very ugly, as it also appears in exported SVG.
Any idea where this might come from?
Do I have to override the standard rectangle shape, or is there another workaround?

Thx for any advice
Norbert

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Re: rectangle rendering artifact [message #166164 is a reply to message #166145]

Fri, 21 December 2007 08:59

Jacques LESCOT

Messages: 247
Registered: July 2009

Senior Member

I think you are using a Compartment that contains then your Rectangle
(without border), and if you see into the code, the
ResizableCompartmentFigure define a single border at the top : this is
what you see in your diagram.

Cheers,
Jacques

Norbert Schöpke a écrit :
> I get a thin greyish line on top of every standard rectangle I use.
> It looks like a border or shadow (see attached screenshot), yet I can't seem to make it disappear.
> It even shows when the rectangle is not filled and has no outline, i.e. should be transparent.
> This is very ugly, as it also appears in exported SVG.
> Any idea where this might come from?
> Do I have to override the standard rectangle shape, or is there another workaround?
>
> Thx for any advice
> Norbert
>
>
> ------------------------------------------------------------ ------------
>

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Re: rectangle rendering artifact [message #166211 is a reply to message #166164]

Fri, 21 December 2007 14:40

Norbert Schöpke

Messages: 63
Registered: July 2009

Member

Thx, I see there is some margin border defined.
But what's the easiest way to override this behaviour? By means of modifying the .gmfgraph instead of hacking into the
generated code, preferably...

I'll look into it myself, but am under a little time pressure here, so if you know a quick way, that would be great!
thx again
Norbert

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Re: rectangle rendering artifact [message #166219 is a reply to message #166211]

Fri, 21 December 2007 14:52

Jacques LESCOT

Messages: 247
Registered: July 2009

Senior Member

First, I wonder whether it is really necessary that you create a
Compartment Figure ? If your label was directly contained in your figure
it would avoid generating the CompartmentFigure with its border.
Otherwise, I guess it should be possible to define a new empty border
for the Compartment figure, but this is just a supposition, maybe a GMF
guru could confirm that ?

Norbert Schöpke a écrit :
> Thx, I see there is some margin border defined.
> But what's the easiest way to override this behaviour? By means of modifying the .gmfgraph instead of hacking into the
> generated code, preferably...
>
> I'll look into it myself, but am under a little time pressure here, so if you know a quick way, that would be great!
> thx again
> Norbert

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Re: rectangle rendering artifact [message #166228 is a reply to message #166219]

Fri, 21 December 2007 15:46

Norbert Schöpke

Messages: 63
Registered: July 2009

Member

The screenshot shows a special case where indeed only one label is inside the diamond shape.
But I have the same problems with other figures, where a 1..* containment is modelled with compartments.

Luckily i found a workable solution. I extend all the affected CompartmentEditParts and override the createFigure()
method like so:

@Override
public IFigure createFigure() {
ResizableCompartmentFigure result =
(ResizableCompartmentFigure) super.createFigure();
result.setBorder(null);
return result;
}

This way the one-line border is reset to null.
For the modeller to use my extended edit parts, I add them to my Custom_XXX_EditPartFactory, overriding the
createEditPart() method to return my custom compartments instead of the generated default one.

Thx for the tip
Norbert

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