C++ NameSet::contains方法代码示例

void DatabaseTracker::recordDeletingDatabase(SecurityOrigin *origin, const String& name)
{
    ASSERT(!m_databaseGuard.tryLock());
    ASSERT(canDeleteDatabase(origin, name));
    NameSet* nameSet = m_beingDeleted.get(origin);
    if (!nameSet) {
        nameSet = new NameSet();
        m_beingDeleted.set(origin->isolatedCopy(), nameSet);
    }
    ASSERT(!nameSet->contains(name));
    nameSet->add(name.isolatedCopy());
}

void DatabaseTracker::doneDeletingDatabase(SecurityOrigin *origin, const String& name)
{
    ASSERT(!m_databaseGuard.tryLock());
    NameSet* nameSet = m_beingDeleted.get(origin);
    ASSERT(nameSet);
    if (!nameSet)
        return;

    ASSERT(nameSet->contains(name));
    nameSet->remove(name);
    if (nameSet->isEmpty()) {
        m_beingDeleted.remove(origin);
        delete nameSet;
    }
}

void WidgetDataBase::loadPlugins()
{
    typedef QMap<QString, int> NameIndexMap;
    typedef QList<QDesignerWidgetDataBaseItemInterface*> ItemList;
    typedef QMap<QString, QDesignerWidgetDataBaseItemInterface*> NameItemMap;
    typedef QSet<QString> NameSet;
    // 1) create a map of existing custom classes
    NameIndexMap existingCustomClasses;
    NameSet nonCustomClasses;
    const int count = m_items.size();
    for (int i = 0; i < count; i++)    {
        const QDesignerWidgetDataBaseItemInterface* item =  m_items[i];
        if (item->isCustom() && !item->isPromoted())
            existingCustomClasses.insert(item->name(), i);
        else
            nonCustomClasses.insert(item->name());
    }
    // 2) create a list plugins
    ItemList pluginList;
    const QDesignerPluginManager *pm = m_core->pluginManager();
    foreach(QDesignerCustomWidgetInterface* c, pm->registeredCustomWidgets())
        pluginList += createCustomWidgetItem(c, pm->customWidgetData(c));

    // 3) replace custom classes or add new ones, remove them from existingCustomClasses,
    // leaving behind deleted items
    unsigned replacedPlugins = 0;
    unsigned addedPlugins = 0;
    unsigned removedPlugins = 0;
    if (!pluginList.empty()) {
        ItemList::const_iterator cend = pluginList.constEnd();
        for (ItemList::const_iterator it = pluginList.constBegin();it != cend; ++it )  {
            QDesignerWidgetDataBaseItemInterface* pluginItem = *it;
            const QString pluginName = pluginItem->name();
            NameIndexMap::iterator existingIt = existingCustomClasses.find(pluginName);
            if (existingIt == existingCustomClasses.end()) {
                // Add new class.
                if (nonCustomClasses.contains(pluginName)) {
                    designerWarning(tr("A custom widget plugin whose class name (%1) matches that of an existing class has been found.").arg(pluginName));
                } else {
                    append(pluginItem);
                    addedPlugins++;
                }
            } else {
                // replace existing info
                const int existingIndex = existingIt.value();
                delete m_items[existingIndex];
                m_items[existingIndex] = pluginItem;
                existingCustomClasses.erase(existingIt);
                replacedPlugins++;

            }
        }
    }
    // 4) remove classes that have not been matched. The stored indexes become invalid while deleting.
    if (!existingCustomClasses.empty()) {
        NameIndexMap::const_iterator cend = existingCustomClasses.constEnd();
        for (NameIndexMap::const_iterator it = existingCustomClasses.constBegin();it != cend; ++it )  {
            const int index = indexOfClassName(it.key());
            if (index != -1) {
                remove(index);
                removedPlugins++;
            }
        }
    }
    if (debugWidgetDataBase)
        qDebug() << "WidgetDataBase::loadPlugins(): " << addedPlugins << " added, " << replacedPlugins << " replaced, " << removedPlugins << "deleted.";
}

bool DatabaseTracker::isDeletingDatabase(SecurityOrigin *origin, const String& name)
{
    ASSERT(!m_databaseGuard.tryLock());
    NameSet* nameSet = m_beingDeleted.get(origin);
    return nameSet && nameSet->contains(name);
}