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Dive list: don't pass dive_site via uintptr_t through QML

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Now that struct dive_site * is a proper Q_METATYPE it is not
necessary anymore to pass dive-sites as opaque uintptr_t types.
Simply pass a QVariants or directly via dive_site *.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2018-10-28 22:19:17 +01:00 • committed by Dirk Hohndel
parent c980216dc0
commit a0cc02dfe8
3 changed files with 5 additions and 21 deletions
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21
qt-models/maplocationmodel.cpp
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@ -20,12 +20,7 @@ QVariant MapLocation::getRole(int role) const
{
switch (role) {
case Roles::RoleDivesite:
// To pass the dive site as an opaque object to QML, we convert it to uintptr_t.
// This type is guaranteed to hold a full pointer, therefore false equivalence
// owing to truncation can happen. The more logical type would of course be void *,
// but in tests all QVariant<void *> compared equal. It is unclear whether this is
// a bug in a certain version of QML or QML is inredibly broken by design.
return QVariant::fromValue((uintptr_t)m_ds);
return QVariant::fromValue((dive_site *)m_ds);
case Roles::RoleCoordinate:
return QVariant::fromValue(m_coordinate);
case Roles::RoleName:
@ -58,8 +53,7 @@ struct dive_site *MapLocation::divesite()
QVariant MapLocation::divesiteVariant()
{
// See comment on uintptr_t above
return QVariant::fromValue((uintptr_t)m_ds);
return QVariant::fromValue(m_ds);
}
MapLocationModel::MapLocationModel(QObject *parent) : QAbstractListModel(parent),
@ -139,18 +133,9 @@ void MapLocationModel::setSelected(struct dive_site *ds, bool fromClick)
emit selectedLocationChanged(getMapLocation(m_selectedDs));
}
void MapLocationModel::setSelected(QVariant divesite, QVariant fromClick)
{
// See comment on uintptr_t above
struct dive_site *ds = (struct dive_site *)qvariant_cast<uintptr_t>(divesite);
const bool fromClickBool = qvariant_cast<bool>(fromClick);
setSelected(ds, fromClickBool);
}
QVariant MapLocationModel::selectedDs()
{
// See comment on uintptr_t above
return QVariant::fromValue((uintptr_t)m_selectedDs);
return QVariant::fromValue(m_selectedDs);
}
MapLocation *MapLocationModel::getMapLocation(const struct dive_site *ds)