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Layout of MParts that are referenced by MPlaceholders [message #1391928]

Tue, 01 July 2014 16:01

Uwe San

Messages: 119
Registered: January 2012

Senior Member

Hi,

my application model contains placeholders that reference parts like this:

+ MPartSashContainer (horizontal = true)
   + MPlaceholder
     -> MPart (fx_layout_grab_horizontal = false)
   + MPlaceholder
     -> MPart (fx_layout_grab_horizontal = true)

I defined the layout properties for grabbing space as described on this page: http://wiki.eclipse.org/Efxclipse/Runtime/e4

Turned out the layout properties need to be copied to the placeholders for the e(fx)clipse renderer to lay out the two parts correctly (with the second part growing in the horizontal direction). This behaviour was a bit surprising, as I expected the renderer to find the layout information in the part element referenced by the placeholder. Is this the intended behaviour?

Cheers,
Uwe

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Re: Layout of MParts that are referenced by MPlaceholders [message #1402810 is a reply to message #1391928]

Thu, 17 July 2014 14:36

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

The layout information have to be part of the placeholder - if you think
about it more closely it could be that in Perspective A the layout
requires the part to grab the space and in Perspective B it should not
and in Perspective C it is not even the child of a MPartSashContainer
but a completely different container.

So all informations like, closeable, ... need to be provided by the
placeholder and not the MPart which is reused.

Tom

On 01.07.14 18:01, Uwe San wrote:
> Hi,
>
> my application model contains placeholders that reference parts like this:
>
>
> + MPartSashContainer (horizontal = true)
> + MPlaceholder
> -> MPart (fx_layout_grab_horizontal = false)
> + MPlaceholder
> -> MPart (fx_layout_grab_horizontal = true)
>
> I defined the layout properties for grabbing space as described on this
> page: http://wiki.eclipse.org/Efxclipse/Runtime/e4
>
> Turned out the layout properties need to be copied to the placeholders
> for the e(fx)clipse renderer to lay out the two parts correctly (with
> the second part growing in the horizontal direction). This behaviour was
> a bit surprising, as I expected the renderer to find the layout
> information in the part element referenced by the placeholder. Is this
> the intended behaviour?
>
> Cheers,
> Uwe

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