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Which function gets called first [message #454580]

Mon, 25 April 2005 04:35

Neeraj

Messages: 18
Registered: July 2009

Junior Member

I have the following code for a labelProvider:
class ViewLabelProvider extends LabelProvider implements IColorProvider{
....
...
public Image getImage(Object obj) {
....
}

public Color getForeground(Object element) {
...
}

public Color getBackground(Object element) {
....
}

}
which of these three function are called first when the viewer is
associated with this label provider
Say,
TreeViewer tv = new TreeViewer(...);
tv.setLabelProvider(new ViewLabelProvider());

and is the order of call same always, i.e when tree is expanded or
collapsed etc..

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Re: Which function gets called first [message #454648 is a reply to message #454580]

Tue, 26 April 2005 07:10

Emil Crumhorn

Messages: 169
Registered: July 2009

Senior Member

If you add some debug messages in each of the methods, you'll find out
that..

1. getImage(...)
2. getForeground(...)
3. getBackground(...)
4. getFont(...)
5. Looks like it

Emil

"Neeraj" <neerajkrishnag@yahoo.com> wrote in message
news:f0c5e651bad1493cdea3ec3a436f7e3d$1@www.eclipse.org...
>I have the following code for a labelProvider:
> class ViewLabelProvider extends LabelProvider implements IColorProvider{
> ...
> ..
> public Image getImage(Object obj) {
> ...
> }
>
> public Color getForeground(Object element) {
> ..
> }
>
> public Color getBackground(Object element) {
> ...
> }
>
> }
> which of these three function are called first when the viewer is
> associated with this label provider
> Say,
> TreeViewer tv = new TreeViewer(...);
> tv.setLabelProvider(new ViewLabelProvider());
>
> and is the order of call same always, i.e when tree is expanded or
> collapsed etc..
>

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