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Dive list: remember selected dives

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Don't delesect dives, when unregistering them from the backend.
If a previously selected dive is added, select it in the dive-list.
For this purpose introduce a SELECTED_ROLE to query the DiveTripModel
for selected dives.

Unfortunately, when adding multiple selected dives, current_dive_changed
is called for each of them, making this very slow. This will have
to be fixed in subsequent commits.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2018-08-01 10:47:09 +02:00 • committed by Dirk Hohndel
parent 96d8727399
commit 0d98da5261
4 changed files with 29 additions and 12 deletions
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11
desktop-widgets/divelistview.cpp
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@ -181,10 +181,19 @@ void DiveListView::rowsInserted(const QModelIndex &parent, int start, int end)
// First, let the QTreeView do its thing.
QTreeView::rowsInserted(parent, start, end);
QAbstractItemModel *m = model();
QItemSelectionModel *s = selectionModel();
// Check whether any of the items is selected
for (int i = start; i <= end; ++i) {
QModelIndex index = m->index(i, 0, parent);
if (m->data(index, DiveTripModel::SELECTED_ROLE).toBool())
s->select(index, QItemSelectionModel::Select | QItemSelectionModel::Rows);
}
// Now check for each inserted row whether this is a trip and expand the first column
if (parent.isValid()) // Trips don't have a parent
return;
QAbstractItemModel *m = model();
for (int i = start; i <= end; ++i) {
if (m->rowCount(m->index(i, 0)) != 0)
setFirstColumnSpanned(i, QModelIndex(), true);