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#include "updatemanager.h"
UpdateMemento::~UpdateMemento()
{}
// int m_updatesDisabled;
// QSet<QPair<UpdateManaged*, UpdateMemento*> > m_pending;
typedef QPair<UpdateManaged*, UpdateMemento*> PendingUpdate;
UpdateManager::~UpdateManager()
{
foreach(PendingUpdate pair, m_pending) {
delete pair.second;
}
}
void UpdateManager::setUpdatesEnabled(bool val)
{
if (val)
{
if (m_updatesDisabled > 0)
{
if (--m_updatesDisabled == 0)
{
foreach(PendingUpdate pair, m_pending) {
pair.first->updateNow(pair.second);
}
m_pending.clear();
}
}
}
else
{
++m_updatesDisabled;
}
}
bool UpdateManager::requestUpdate(UpdateManaged* observable, UpdateMemento* what)
{
if (m_updatesDisabled == 0)
{
return true;
}
else
{
m_pending.insert(PendingUpdate(observable, what));
return false;
}
}
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