| Composite edit parts and figure hierarchy [message #205007] |
Fri, 09 December 2005 18:36  |
Eclipse User |
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Originally posted by: tfrangoullides.instream.co.uk
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I've been having a problem with the way my figures and edit parts are
organised on a particular GEF editor for sometime. I think I'm missing some
key concepts and I would really appreciate some help from those who
understand the GEF architecture better than myself.
I've attached a screen shot from my current (RAD)editor to help describe the
problem. Notice the large grey "roles", they are containers for the smaller
linked "action" boxes. Notice also that labels for the role and for the
little boxes appear outside the items and also the containing box. This is
important for this notation. You'll also notice that the selected role has
handles drawn only around the relevant resizable area and doesn't include
the label, this also happens for the little action boxes.
I achieved this by having each labeled edit part create an "additional"
figure and adding it to a special labels layer in an overriden
registerVisuals method. It also adds a locator for the move together.
However, I really want the label figures to be controlled by their own edit
parts so I can start to add extra capabilites like dragging them around (I
can give them their own notational element in the model).
I think I want to make the label edit part a child of the box edit part but
then I can't find a good way to move the figure to its own layer.
Overriding addChildVisual to do this created IndexOutOfBounds problems.
I'm thinking about an invisible composite edit part which owns box figure
and label edit parts but my requests and not passing through to the child
parts... besides I am not sure this will allow the little action box labels
to overlap the container boundaries.
many thanks,
Tas.
--nextPart4254124.unrgmpVy2M
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--nextPart4254124.unrgmpVy2M--
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| Re: Composite edit parts and figure hierarchy [message #205099 is a reply to message #205067] |
Mon, 12 December 2005 12:31  |
| Eclipse User |
|
|
|
Originally posted by: tfrangoullides.instream.co.uk
Thanks for sharing this with me. I was hoping to have the label as a child
of the labeled element and just have different edit part hierarchy but if I
can't find a way to do that then I will try your approach. How are you
keeping labels at the end of the children collection? Has this complicated
the adding of non-label model elements?
As a general rule, does the edit part hierarchy have to reflect the model
hierarchy?
Thanks again,
Tas.
FreeGroup wrote:
> I solved that problem with an LabelModel, LabelModelEditPart and the
> LabelFigure.
>
> I create the LabelModel on demand for each AnyElementModel element
>
> The LabelModel is NOT a child of AnyElementModel.
>
> The LabelModel is a listener of movements of the *virtual* parent
> (AnyElementModel)
>
> The LabelModel is the last one in the ParentOfAllModel.getChildren() List
> So - the LabelModel is always on top of all elements.
>
> Advantage:
> - I can move the Label with DragDrop relative to its *virtual* parent.
> - The label model is a listener to the *virtual* parent and can adjust
> it position.
> on the model level.
> - No additional layer required.
>
>
> ParentOfAllModel
> |
> |--AnyElementModel[1]
> |
> |--AnyElementModel[2]
> |
> |--Comment[1]
> |
> |--Comment[2]
> |
> |--Comment[3]
> .
> .
|
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| Re: Composite edit parts and figure hierarchy [message #205409 is a reply to message #205236] |
Fri, 16 December 2005 11:51 |
| Eclipse User |
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|
Originally posted by: tfrangoullides.instream.co.uk
After much playing and going round in circles I have found that changing the
parent-child relationships of my model and editparts difficult to work
with. Is there a way to have the figure of an editpart appear in a figure
other than that of its parent. A connection edit achieves this using
registerVisuals so it can add the figure to a different layer. Can a
similar thing be achieved from a child node edit part?
Thanks for your help,
Tas.
FreeGroup wrote:
> Tas Frangoullides wrote:
>> Thanks for sharing this with me. I was hoping to have the label as a
>> child of the labeled element and just have different edit part hierarchy
>> but if I can't find a way to do that then I will try your approach. How
>> are you keeping labels at the end of the children collection? Has this
>> complicated the adding of non-label model elements?
>
> adding Labels with myElementList.add(myLabel);
> and non labels with myElementList.add(0,anyElement);
>
>>
>> As a general rule, does the edit part hierarchy have to reflect the model
>> hierarchy?
>>
> I think it is the typical case.
> But I made a GUI designer (yet another) and if I move
> e.g. a TextField I want move a corresponding Label of them.
> But I want move the Label separate as well (e.g. at the top, left, right
> or at any place in the ui (outside of its parent)).
>
> So the Label is a child of the TextField but not a child
> of the TextFieldEditPart.
>
> And if I move the TextFieldModel I update the LabelModel
> with the moveDiff of the TextFieldModel.
>
> The Label has now always the same relative postion to its
> TextFieldModel.
>
>> Thanks again,
>>
>> Tas.
>>
>> FreeGroup wrote:
>>
>>
>>
>>
|
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| Re: Composite edit parts and figure hierarchy [message #205417 is a reply to message #205409] |
Fri, 16 December 2005 12:13 |
| Eclipse User |
|
|
|
Originally posted by: tfrangoullides.instream.co.uk
Sorry... it is activateFigure (not registerVIsuals) which achieves this for
connection edit parts. This is not available for GraphicalEditParts :(
>
> After much playing and going round in circles I have found that changing
> the parent-child relationships of my model and editparts difficult to work
> with. Is there a way to have the figure of an editpart appear in a figure
> other than that of its parent. A connection edit achieves this using
> registerVisuals so it can add the figure to a different layer. Can a
> similar thing be achieved from a child node edit part?
>
> Thanks for your help,
>
> Tas.
>
>
> FreeGroup wrote:
>
>> Tas Frangoullides wrote:
>>> Thanks for sharing this with me. I was hoping to have the label as a
>>> child of the labeled element and just have different edit part hierarchy
>>> but if I can't find a way to do that then I will try your approach. How
>>> are you keeping labels at the end of the children collection? Has this
>>> complicated the adding of non-label model elements?
>>
>> adding Labels with myElementList.add(myLabel);
>> and non labels with myElementList.add(0,anyElement);
>>
>>>
>>> As a general rule, does the edit part hierarchy have to reflect the
>>> model hierarchy?
>>>
>> I think it is the typical case.
>> But I made a GUI designer (yet another) and if I move
>> e.g. a TextField I want move a corresponding Label of them.
>> But I want move the Label separate as well (e.g. at the top, left, right
>> or at any place in the ui (outside of its parent)).
>>
>> So the Label is a child of the TextField but not a child
>> of the TextFieldEditPart.
>>
>> And if I move the TextFieldModel I update the LabelModel
>> with the moveDiff of the TextFieldModel.
>>
>> The Label has now always the same relative postion to its
>> TextFieldModel.
>>
>>> Thanks again,
>>>
>>> Tas.
>>>
>>> FreeGroup wrote:
>>>
>>>
>>>
>>>
|
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| Re: Composite edit parts and figure hierarchy [message #209021 is a reply to message #205099] |
Fri, 10 February 2006 12:59 |
| Eclipse User |
|
|
|
Originally posted by: renato.sysmap.com.br
Hi,
I'm facing the same problem and would appreciate if you guys could give
me more detailed explanation about this solution.
Thanks in advance,
Renato.
Tas Frangoullides wrote:
> Thanks for sharing this with me. I was hoping to have the label as a child
> of the labeled element and just have different edit part hierarchy but if I
> can't find a way to do that then I will try your approach. How are you
> keeping labels at the end of the children collection? Has this complicated
> the adding of non-label model elements?
>
> As a general rule, does the edit part hierarchy have to reflect the model
> hierarchy?
>
> Thanks again,
>
> Tas.
>
> FreeGroup wrote:
>
>
>>I solved that problem with an LabelModel, LabelModelEditPart and the
>>LabelFigure.
>>
>>I create the LabelModel on demand for each AnyElementModel element
>>
>>The LabelModel is NOT a child of AnyElementModel.
>>
>>The LabelModel is a listener of movements of the *virtual* parent
>>(AnyElementModel)
>>
>>The LabelModel is the last one in the ParentOfAllModel.getChildren() List
>>So - the LabelModel is always on top of all elements.
>>
>>Advantage:
>> - I can move the Label with DragDrop relative to its *virtual* parent.
>> - The label model is a listener to the *virtual* parent and can adjust
>> it position.
>> on the model level.
>> - No additional layer required.
>>
>>
>>ParentOfAllModel
>> |
>> |--AnyElementModel[1]
>> |
>> |--AnyElementModel[2]
>> |
>> |--Comment[1]
>> |
>> |--Comment[2]
>> |
>> |--Comment[3]
>> .
>> .
>
>
|
|
|
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