hi,

are there any solutions for the following problems? -->

1. my QSortFilterProxyModel is quite slow when the source-data-model contains bigger amount of data (e.g. for a logfile containing about 100.000 lines the linewise filtering with a regular expression and also with a fixed string takes above 1 minute which is quite slow -> any alternatives?

2. if there is no solution for 1. how can i be notified about when the proxy has finished filtering to react on it within my gui ??

3. is it possible to merge two different successive filter results ?
--> the results of a filtering are shown within a table-view, the filter-results of a second filter-request should merge into the results from the first search .. is this possible!?

thnx.