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Dive site: pass pointer-to-dive_site via QVariant

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There was this ugly pattern of passing pointers-to-dive_site via
a QVariant of void * type. This is of course inherently unsafe.

Pass these pointers using their proper types instead. This makes
it necessary to register them in Qt's meta-type system. Doing so,
fixes a bug: QML couldn't call into updateDiveSiteCoordinates()
because it didn't know the type and thus the coordinates of
the moved flag were not reflected in the divesite-dialog.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2018-10-28 21:16:42 +01:00 • committed by Dirk Hohndel
parent e8b3fdb4a6
commit 920eb7576f
5 changed files with 11 additions and 8 deletions
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4
desktop-widgets/locationinformation.cpp
View file

@ -82,7 +82,7 @@ void LocationInformationWidget::mergeSelectedDiveSites()
std::vector<struct dive_site *> selected_dive_sites;
selected_dive_sites.reserve(selection.count());
Q_FOREACH (const QModelIndex &idx, selection) {
struct dive_site *ds = (struct dive_site *)idx.data(LocationInformationModel::DIVESITE_ROLE).value<void *>();
dive_site *ds = idx.data(LocationInformationModel::DIVESITE_ROLE).value<dive_site *>();
if (ds)
selected_dive_sites.push_back(ds);
}
@ -507,7 +507,7 @@ void DiveLocationLineEdit::itemActivated(const QModelIndex &index)
if (index.column() == LocationInformationModel::DIVESITE)
idx = index.model()->index(index.row(), LocationInformationModel::NAME);
dive_site *ds = (dive_site *)index.model()->index(index.row(), LocationInformationModel::DIVESITE).data().value<void *>();
dive_site *ds = index.model()->index(index.row(), LocationInformationModel::DIVESITE).data().value<dive_site *>();
currType = ds == RECENTLY_ADDED_DIVESITE ? NEW_DIVE_SITE : EXISTING_DIVE_SITE;
currDs = ds;
setText(idx.data().toString());

2
desktop-widgets/mapwidget.cpp
View file

@ -67,7 +67,7 @@ void MapWidget::centerOnDiveSite(struct dive_site *ds)
void MapWidget::centerOnIndex(const QModelIndex& idx)
{
CHECK_IS_READY_RETURN_VOID();
struct dive_site *ds = (struct dive_site *)idx.model()->index(idx.row(), LocationInformationModel::DIVESITE).data().value<void *>();
dive_site *ds = idx.model()->index(idx.row(), LocationInformationModel::DIVESITE).data().value<dive_site *>();
if (!ds || ds == RECENTLY_ADDED_DIVESITE || !dive_site_has_gps_location(ds))
centerOnSelectedDiveSite();
else

4
desktop-widgets/modeldelegates.cpp
View file

@ -453,8 +453,8 @@ void LocationFilterDelegate::paint(QPainter *painter, const QStyleOptionViewItem
QString diveSiteName = index.data().toString();
QString bottomText;
QIcon icon = index.data(Qt::DecorationRole).value<QIcon>();
struct dive_site *ds = (struct dive_site *)
index.model()->data(index.model()->index(index.row(), LocationInformationModel::DIVESITE)).value<void *>();
struct dive_site *ds =
index.model()->data(index.model()->index(index.row(), LocationInformationModel::DIVESITE)).value<dive_site *>();
struct dive_site *currentDiveSite = current_dive ? get_dive_site_for_dive(current_dive) : nullptr;
bool currentDiveSiteHasGPS = currentDiveSite && dive_site_has_gps_location(currentDiveSite);
//Special case: do not show name, but instead, show