Variable &Variable::set(Value *v)
{
DENG2_ASSERT(v != 0);
QScopedPointer<Value> val(v);
// If the value would change, must check if this is allowed.
verifyWritable(*v);
verifyValid(*v);
QScopedPointer<Value> oldValue(d->value); // old value deleted afterwards
d->value = val.take();
// We'll only determine if actual change occurred if someone is interested.
if(!audienceForChange().isEmpty() || !audienceForChangeFrom().isEmpty())
{
bool notify = true;
try
{
// Did it actually change? Let's compare...
notify = oldValue.isNull() || oldValue->compare(*v);
}
catch(Error const &)
{
// Perhaps the values weren't comparable?
}
if(notify)
{
DENG2_FOR_AUDIENCE2(Change, i) i->variableValueChanged(*this, *d->value);
DENG2_FOR_AUDIENCE2(ChangeFrom, i) i->variableValueChangedFrom(*this, *oldValue, *d->value);
}
}
return *this;
}
void Asset::setState(State s)
{
State old = d->state;
d->state = s;
if (old != d->state)
{
DENG2_FOR_AUDIENCE2(StateChange, i) i->assetStateChanged(*this);
}
}
ArchiveEntryFile::~ArchiveEntryFile()
{
DENG2_GUARD(this);
DENG2_FOR_AUDIENCE2(Deletion, i) i->fileBeingDeleted(*this);
audienceForDeletion().clear();
deindex();
}
void Loop::nextLoopIteration()
{
try
{
if (d->running)
{
DENG2_FOR_AUDIENCE2(Iteration, i) i->loopIteration();
}
}
catch (Error const &er)
{
LOG_AS("Loop");
// This is called from Qt's event loop, we mustn't let exceptions
// out of here uncaught.
App::app().handleUncaughtException("Uncaught exception during loop iteration:\n" + er.asText());
}
}
Variable::~Variable()
{
DENG2_FOR_AUDIENCE2(Deletion, i) i->variableBeingDeleted(*this);
}
Asset::~Asset()
{
DENG2_FOR_AUDIENCE2(Deletion, i) i->assetBeingDeleted(*this);
}
ArchiveFolder::~ArchiveFolder()
{
DENG2_FOR_AUDIENCE2(Deletion, i) i->fileBeingDeleted(*this);
audienceForDeletion().clear();
deindex();
}
