Hi
It's relatively straightforward to do this yourself.
(*) Create a TextOperator interface
(*) Create adapter classes for TextInput, TextArea and TextPane that implement
TextOperator and call the necessary methods.
(*) In your CutCopyPaste class do this:
public class CutCopyPaste {
public void configure(TextInput t1) {
configure(new TextOperatorForTextInput(t1));
}
}
Handily keeps the casts out of the way.
The way to do this in the core Pivot code would probably be to introduce a new
abstract class that sits above
TextInput/TextArea/TextPane.
I suggest you log a feature request in the bug-tracker so we don't lose track
of this idea.
Thanks,
Noel Grandin
Roger L. Whitcomb wrote:
> I'm implementing Cut/Copy/Paste, etc. in our UI and it is fairly awkward
> to have to check for TextInput, TextArea and TextPane on every operation
> and do the casts three times for each. So, I was wondering what
> everyone thought of a "TextOperator" interface that these three classes
> implement that consists of the relevant methods:
>
>
>
> public void cut();
>
> public void copy();
>
> public void paste();
>
> public void undo();
>
> public void redo();
>
> public void clearSelection();
>
> public void selectAll();
>
> public int getSelectedLength(); // Necessary for
> determining enabling of cut/copy
>
> public String getSelectedText();
>
>
>
> This way I could cut my work to 1/3 because I simply have to cast to
> "TextOperator" and do the operations (checking for "instanceof" also).
>
>
>
> So, what does everyone think? It would be relatively trivial to
> implement the change (add the interface file and add "implements..."
> clause to the three classes (I think, not having prototyped it yet).
>
>
>
>
>
>
>
> Roger Whitcomb
>
> Architect, Engineering
>
> Ingres Corporation
>
> [email protected] <mailto:[email protected]>
>
>
>
> PHONE +1 650.587.5596
>
> FAX +1 650.587.5550
>
>
>
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>
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