Description Claudio Guglielmo 2011-06-10 11:23:05 EDT

Build Identifier: 3.7.0

Resizing a table column is very slow. 

Problem: Every resize event calls AbstractTable#setColumnWidthFromUI() which saves all column preferences. Flushing those preferences (ClientUIPreferences#flush()) takes 100-200ms at my Windows Vista computer. On my windows xp computer its about 0ms -> fine.

I can think of two solutions: 

1. Propagate only the LAST resize call to the model (I do not know if that is possible)
2. Delay the saving of the preferences. It is not necessary to save them at every resize event. I would schedule a job in ClientUIPreferences#setAllTableColumnPreferences which saves the preferences 1-2 sec later (if there is not already one scheduled).
3. Do it the same way as in swing where the progatation to the model is scheduled (400ms).


Reproducible: Always

Steps to Reproduce:
1. Open swt test client
2. Open Standardview.
3. Resize a column (hold down the mouse button for several seconds)