Make it possible to close tab for a big report
Make it possible to close tab for a big report on generating, thus cancelling the generation.
Use processEvents() every second or 5, like in the CSV import or in KexiMainWindow. We probably don't want to use it for every page.
+make sure there's progress visible, e.g. by updating the counter on the page navigator in real time
Target: 2.9.11 (~10 days) Bugzilla: TODO
Edited by Jarosław Staniek