| Palette model and EditPart model? [message #146135] |
Tue, 03 August 2004 08:56  |
Eclipse User |
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Originally posted by: mastr.arcor.de
Hello!
A general question at the beginning:
Is it possible to have a model object stored in the palette?
If I select this model in the palette an "drag" it to my parent-figure
in the grahical editor I want to have a copy of this model object.
Is GEF designed to provide something for this action I want?
Else I tried to workaround this way:
I put a CreationTool to the palette with a name corresponding to something
like an ID to the model I want to have. When my CreateCommand becomes
executed, I get the selected Tool name from the palette and gets a model
copy from a list stored in my editor.
Is there a better way to do so?
Hope that's clear enough to understand.
Thanks in advance, Martin.
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| Re: Palette model and EditPart model? [message #146162 is a reply to message #146135] |
Tue, 03 August 2004 11:01  |
| Eclipse User |
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Originally posted by: word-up.gmx.de
Hi,
the normal way is to register a factory for an entry in the palette which
creates the model objects.
So if you want to have a "copy" of a model object (btw, what do you mean
by a copy? a clone? a reference to the same object? or just another
instance of the model class?) your factory should return that "copy". Your
factory should implement the CreationFactory interface.
mastr wrote:
> Hello!
> A general question at the beginning:
> Is it possible to have a model object stored in the palette?
> If I select this model in the palette an "drag" it to my parent-figure
> in the grahical editor I want to have a copy of this model object.
> Is GEF designed to provide something for this action I want?
> Else I tried to workaround this way:
> I put a CreationTool to the palette with a name corresponding to something
> like an ID to the model I want to have. When my CreateCommand becomes
> executed, I get the selected Tool name from the palette and gets a model
> copy from a list stored in my editor.
> Is there a better way to do so?
> Hope that's clear enough to understand.
> Thanks in advance, Martin.
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| Re: Palette model and EditPart model? [message #146180 is a reply to message #146162] |
Tue, 03 August 2004 11:14 |
| Eclipse User |
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Originally posted by: mastr.arcor.de
Max wrote:
> So if you want to have a "copy" of a model object (btw, what do you mean
> by a copy? a clone? a reference to the same object? or just another
> instance of the model class?)...
I ment a clone not a new instance because I need the attributes of the
model object.
> ...your factory should return that "copy". Your
> factory should implement the CreationFactory interface.
My createPaletteRoot() method contains this:
entry = new DefaultPaletteToolEntry(
new CreationTool(
new CreateRequest.SimpleFactory(MyModel.class)),
b.getName(),
b.getDescription()
null,
null);
bundleEntries.add(entry);
So, if I implement my own "CreationFactory" I'm enabled to do this?:
MyModel model = new MyModel(attrib1, attrib2);
entry = new DefaultPaletteToolEntry(
new CreationTool(
new MyCreationFactory(model)),
b.getName(),
b.getDescription()
null,
null);
bundleEntries.add(entry);
and in MyLayoutEditPolicy implementation's method
protected Command getCreateCommand(CreateRequest request) {
...
MyModel model = (MyModel) request.getNewObject();
return new CreationCommand(parent, model);
}
I'll get this model object via getNewObject?
Thanks for your answer.
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