[news.eclipse.platform.swt] Re: SWT.setData event handlers not called if

[Kevin <k@xxxxxxxxxxxxxxxxxxx>]

I solved my problem with this (hack?):

My content provider implements the ILazyContentProvider updateElement 
method, and it also implements filters of elements something that 
doesn't work by default in virtual tables. When updateElement is called 
from the VirtualManager the number of items to be shown in the table is 
calculated again, I need to do this because if the filter configuration 
changed then amount of items could change even if the model didn't 
report any update to the content provider. When the user changes the 
filter configuration I call viewer.refresh() but it doesn't help because 
being a virtual table it only clears the content.
In updateElement after calculating the item count with the filters 
applied, I check if it is 0, it means that the table will be empty and 
updateElement wont be called again so to avoid it I add an empty item
to the table viewer, solving the problem:



public void updateElement(int index)

public void updateElement(int index) {
	if (viewer != null && input != null) {
		int inputSize = inputSize();
		if (inputSize == 0) {
			viewer.setItemCount(1);
			return;
		}
		viewer.setItemCount(inputSize);
		if (index < inputSize) {
			viewer.replace(getElement(index), index);
		}
	}
}

I would like to know if it is a bug and also if someone else implemeted 
filters and sorting in virtual tables.


thank you, bye.