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First deselect, then select

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For reasons I still don't understand, sometimes (but not always) when
clicking on a trip header we appear to get a select notification for the
trip and at the same time deselect notifications for every dive in the
trip. This seems wrong but I can't seem to figure out why it happens -
and of course it causes us to have a mixed up interpretation of what is
selected in our internal selection tracking.

Simply acting on the new selection after the newly deselected items are
handled appears to fix the issue, but I do worry about this change.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2013-06-14 06:17:38 -07:00
parent 5e51d1e354
commit d8c5f366c8
1 changed files with 17 additions and 18 deletions
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35
qt-ui/divelistview.cpp
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@ -245,6 +245,23 @@ void DiveListView::selectionChanged(const QItemSelection& selected, const QItemS
disconnect(selectionModel(), SIGNAL(selectionChanged(QItemSelection,QItemSelection)), this, SLOT(selectionChanged(QItemSelection,QItemSelection)));
disconnect(selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)), this, SLOT(currentChanged(QModelIndex,QModelIndex)));
Q_FOREACH(const QModelIndex& index, newDeselected.indexes()) {
if (index.column() != 0)
continue;
const QAbstractItemModel *model = index.model();
struct dive *dive = (struct dive*) model->data(index, TreeItemDT::DIVE_ROLE).value<void*>();
if (!dive) { // it's a trip!
if (model->rowCount(index)) {
struct dive *child = (struct dive*) model->data(index.child(0,0), TreeItemDT::DIVE_ROLE).value<void*>();
while (child) {
deselect_dive(get_index_for_dive(child));
child = child->next;
}
}
} else {
deselect_dive(get_index_for_dive(dive));
}
}
Q_FOREACH(const QModelIndex& index, newSelected.indexes()) {
if (index.column() != 0)
continue;
@ -269,24 +286,6 @@ void DiveListView::selectionChanged(const QItemSelection& selected, const QItemS
select_dive(get_index_for_dive(dive));
}
}
Q_FOREACH(const QModelIndex& index, newDeselected.indexes()) {
if (index.column() != 0)
continue;
const QAbstractItemModel *model = index.model();
struct dive *dive = (struct dive*) model->data(index, TreeItemDT::DIVE_ROLE).value<void*>();
if (!dive) { // it's a trip!
if (model->rowCount(index)) {
struct dive *child = (struct dive*) model->data(index.child(0,0), TreeItemDT::DIVE_ROLE).value<void*>();
while (child) {
deselect_dive(get_index_for_dive(child));
child = child->next;
}
}
} else {
deselect_dive(get_index_for_dive(dive));
}
}
QTreeView::selectionChanged(selectionModel()->selection(), newDeselected);
connect(selectionModel(), SIGNAL(selectionChanged(QItemSelection,QItemSelection)), this, SLOT(selectionChanged(QItemSelection,QItemSelection)));
connect(selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)), this, SLOT(currentChanged(QModelIndex,QModelIndex)));