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| author |  Berthold Stoeger <bstoeger@mail.tuwien.ac.at> | 2019-05-05 12:30:54 +0200 |
|---|---|---|
| committer |  Dirk Hohndel <dirk@hohndel.org> | 2019-05-11 12:06:19 -0700 |
| commit | 83926213ea7a97624ae5b52ac0979d5075855c50 (patch) | |
| tree | 910f8abde9ada8251a7a32814c468f68c1cdd7da /qt-models/filtermodels.cpp | |
| parent | 065423896dee0fe1cc6e2bd13e7e8d1b1cb3e181 (diff) | |
| download | subsurface-83926213ea7a97624ae5b52ac0979d5075855c50.tar.gz | |
Filter: don't reload when dive sites are set to the same value
When switching between the dive-site-table to the dive-site-edit
tabs, the filter would be set to a dive site. Usually, this would
be the same dive site as before. Nevertheless, this caused a full
map-reload. Detect if the dive-sites to be filtered are the same
and turn this operation into a no-op.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Diffstat (limited to 'qt-models/filtermodels.cpp')
| -rw-r--r-- | qt-models/filtermodels.cpp | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/qt-models/filtermodels.cpp b/qt-models/filtermodels.cpp index ce0d5ff42..331439bb4 100644 --- a/qt-models/filtermodels.cpp +++ b/qt-models/filtermodels.cpp @@ -270,8 +270,13 @@ void MultiFilterSortModel::clearFilter() void MultiFilterSortModel::startFilterDiveSites(QVector<dive_site *> ds) { dive_sites = ds; - ++diveSiteRefCount; - myInvalidate(); + if (++diveSiteRefCount > 1) { + setFilterDiveSite(ds); + } else { + std::sort(ds.begin(), ds.end()); + dive_sites = ds; + myInvalidate(); + } } void MultiFilterSortModel::stopFilterDiveSites() @@ -284,6 +289,11 @@ void MultiFilterSortModel::stopFilterDiveSites() void MultiFilterSortModel::setFilterDiveSite(QVector<dive_site *> ds) { + // If the filter didn't change, return early to avoid a full + // map reload. For a well-defined comparison, sort the vector first. + std::sort(ds.begin(), ds.end()); + if (ds == dive_sites) + return; dive_sites = ds; myInvalidate(); } @@ -295,7 +305,7 @@ const QVector<dive_site *> &MultiFilterSortModel::filteredDiveSites() const bool MultiFilterSortModel::diveSiteMode() const { - return !dive_sites.isEmpty(); + return diveSiteRefCount > 0; } bool MultiFilterSortModel::lessThan(const QModelIndex &i1, const QModelIndex &i2) const |