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force the selection of an edit part on move [message #242181]

Fri, 04 April 2008 02:32

Eclipse User

Originally posted by: alexjaquet.gmail.com

Hi,

I've implemented a functionality that allow an user to move an edit part
inside a container by using the arrow keys and now I need to not
deselect the edit part that have been moved (I have to reselect the edit
part to move it again)

Any hints to do that

Thanks

Re: force the selection of an edit part on move [message #242184 is a reply to message #242181]

Fri, 04 April 2008 04:06

Eclipse User

Originally posted by: alexjaquet.gmail.com

for testing purpose I've overriden the method removeNotify of the
AbstractEditPart and force the viewer to not deselect the current edit part

but it doesn't work ...

Any idea welcomed

Thanks in advance

Alexandre

Re: force the selection of an edit part on move [message #242195 is a reply to message #242184]

Fri, 04 April 2008 07:34

Eclipse User

Originally posted by: alexjaquet.gmail.com

In the GEF documentation it's written

Closely related to selection is focus. Focus is a single editpart
maintained by the EditPartViewer. Focus is used when manipulating
selection via keyboard. By moving focus, the user can navigate from one
editpart to another without changing the current selection. The user can
add/remove the focused editpart from the selection. If focus is not
explicitly set, it is the same as the primary selected part.

In my drag edit part I added a viewer.setFocus(selectedEditPart) but the
method getFocusEditPart() is never called

Re: force the selection of an edit part on move [message #242200 is a reply to message #242195]

Mon, 07 April 2008 02:49

Eclipse User

Originally posted by: alexjaquet.gmail.com

Still nobody have an idea ?

thanks ...

Re: force the selection of an edit part on move [message #242204 is a reply to message #242200]

Mon, 07 April 2008 04:56

Eclipse User

Originally posted by: alexjaquet.gmail.com

I've tryed to set the focus and the selected value in the drag edit part

like this

chep.setSelected(EditPart.SELECTED_PRIMARY);
viewer.setFocus(chep);

and I see at debug time than the AbstractEditPart setSelected method was
called by the notifyChanged method

so I added the following code to ensure the selected edit part is setted
correctly

//test code
if (notification.getEventType() == 1) {
WidgetEditPart editPart = this;
if (editPart.getFigure().getChildren().size() > 0) {
if (editPart.getFigure().getChildren().get(0) instanceof ColumnHeader) {
EditPart columnHeaderEditPart = (EditPart)
editPart.getChildren().get(0);
columnHeaderEditPart.setSelected(EditPart.SELECTED_PRIMARY);
getViewer().setFocus(columnHeaderEditPart);
}
}
}
but is still doesn't select the edit part

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