Home » Eclipse Projects » GEF » Design issue related to EditParts
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| Re: Design issue related to EditParts [message #191521 is a reply to message #191481] |
Wed, 10 August 2005 16:57   |
Eclipse User |
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Originally posted by: none.unknown.com
Your exact case is not clear to me, but the following will hopefully help:
1) It seems the box you want to draw can easily be done by adding a border.
2) An EditPart doesn't have to match to a single figure. It can be a
combination of figures. The children will be added to the figure returned
by getContentPane() method (which, by default, returns getFigure()).
3) You can have EditParts that don't correspond to any model object. An
example is the CompartmentEditPart used in the EDiagram example.
"Felix L J Mayer" <felix.mayer@objectaid.com> wrote in message
news:dddag6$3f5$1@news.eclipse.org...
> My model consists of elements that have 2 types of children. I want to
> display the children separately in a box each within the element. Since
the
> children should be selectable, they have their own EditParts and are
> returned by getModelChildren() on the element's EditPart. I wanted to
create
> the box around each list of children by adding a figure per type (a
> compartment which only draws a box around itself) to the element's figure,
> and then adding the children's figures to the figure of their type.
However,
> I ran into the problem that the children's figures are automatically added
> to the element's figure. I can resolve this by adding an EditPart and
> corresponding model for the compartment (which contains the children of a
> particular type), but I am not really happy with that because my model
does
> not need that compartment at all.
>
> Does anybody have any thoughts on this?
>
>
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| Re: Design issue related to EditParts [message #191568 is a reply to message #191521] |
Wed, 10 August 2005 17:17 |
 Felix L J Mayer
Messages: 202
Registered: July 2009 |
Senior Member |
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Please see my replies below.
"Pratik Shah" <none@unknown.com> wrote in message
news:dddblh$4ra$1@news.eclipse.org...
> Your exact case is not clear to me, but the following will hopefully help:
>
> 1) It seems the box you want to draw can easily be done by adding a
> border.
This is what I am doing with the figure for the compartment, which then
contains the children. I cannot add the border to the element's figure
because I need 2 rectangles (one for each type of child) drawn, not just
one. And I cannot add the border to the children, because the rectangle
should go around all the children of a particular type.
> 2) An EditPart doesn't have to match to a single figure. It can be a
> combination of figures. The children will be added to the figure returned
> by getContentPane() method (which, by default, returns getFigure()).
Thanks, this is good to know, but then I have the problem that my version of
getContentPane() would have to know beforehand which type of child is being
added in order to return the proper compartment figure. Children of type 1
should go to compartment 1, children of type 2 to compartment 2.
> 3) You can have EditParts that don't correspond to any model object. An
> example is the CompartmentEditPart used in the EDiagram example.
Very good, but where do I find this example? I only have the flow, logic,
shapes and text examples that came with GEF. I also looked at your
documentation page on eclipse.org, but didn't see anything that said
EDiagram.
>
>
> "Felix L J Mayer" <felix.mayer@objectaid.com> wrote in message
> news:dddag6$3f5$1@news.eclipse.org...
>> My model consists of elements that have 2 types of children. I want to
>> display the children separately in a box each within the element. Since
> the
>> children should be selectable, they have their own EditParts and are
>> returned by getModelChildren() on the element's EditPart. I wanted to
> create
>> the box around each list of children by adding a figure per type (a
>> compartment which only draws a box around itself) to the element's
>> figure,
>> and then adding the children's figures to the figure of their type.
> However,
>> I ran into the problem that the children's figures are automatically
>> added
>> to the element's figure. I can resolve this by adding an EditPart and
>> corresponding model for the compartment (which contains the children of a
>> particular type), but I am not really happy with that because my model
> does
>> not need that compartment at all.
>>
>> Does anybody have any thoughts on this?
>>
>>
>
>
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| Re: Design issue related to EditParts [message #191605 is a reply to message #191568] |
Wed, 10 August 2005 17:23 |
| Eclipse User |
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Originally posted by: none.unknown.com
After re-reading your problem statement, I think I now understand what
you're trying to do. And the solution would be to do it exactly like the
EDiagram example does it. In there, the ClassEditPart displays attributes
and methods in two separate compartments. You can load the ediagram example
from CVS (look at our FAQs to see how to do that).
"Felix L J Mayer" <felix.mayer@objectaid.com> wrote in message
news:dddck6$60e$1@news.eclipse.org...
> Please see my replies below.
>
> "Pratik Shah" <none@unknown.com> wrote in message
> news:dddblh$4ra$1@news.eclipse.org...
> > Your exact case is not clear to me, but the following will hopefully
help:
> >
> > 1) It seems the box you want to draw can easily be done by adding a
> > border.
> This is what I am doing with the figure for the compartment, which then
> contains the children. I cannot add the border to the element's figure
> because I need 2 rectangles (one for each type of child) drawn, not just
> one. And I cannot add the border to the children, because the rectangle
> should go around all the children of a particular type.
>
> > 2) An EditPart doesn't have to match to a single figure. It can be a
> > combination of figures. The children will be added to the figure
returned
> > by getContentPane() method (which, by default, returns getFigure()).
> Thanks, this is good to know, but then I have the problem that my version
of
> getContentPane() would have to know beforehand which type of child is
being
> added in order to return the proper compartment figure. Children of type 1
> should go to compartment 1, children of type 2 to compartment 2.
>
> > 3) You can have EditParts that don't correspond to any model object. An
> > example is the CompartmentEditPart used in the EDiagram example.
> Very good, but where do I find this example? I only have the flow, logic,
> shapes and text examples that came with GEF. I also looked at your
> documentation page on eclipse.org, but didn't see anything that said
> EDiagram.
>
> >
> >
> > "Felix L J Mayer" <felix.mayer@objectaid.com> wrote in message
> > news:dddag6$3f5$1@news.eclipse.org...
> >> My model consists of elements that have 2 types of children. I want to
> >> display the children separately in a box each within the element. Since
> > the
> >> children should be selectable, they have their own EditParts and are
> >> returned by getModelChildren() on the element's EditPart. I wanted to
> > create
> >> the box around each list of children by adding a figure per type (a
> >> compartment which only draws a box around itself) to the element's
> >> figure,
> >> and then adding the children's figures to the figure of their type.
> > However,
> >> I ran into the problem that the children's figures are automatically
> >> added
> >> to the element's figure. I can resolve this by adding an EditPart and
> >> corresponding model for the compartment (which contains the children of
a
> >> particular type), but I am not really happy with that because my model
> > does
> >> not need that compartment at all.
> >>
> >> Does anybody have any thoughts on this?
> >>
> >>
> >
> >
>
>
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