qt-creator/src/plugins/coreplugin/uniqueidmanager.cpp

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#include "uniqueidmanager.h"
#include "coreconstants.h"

using namespace Core;

UniqueIDManager* UniqueIDManager::m_instance = 0;

UniqueIDManager::UniqueIDManager()
{
    m_instance = this;
    m_uniqueIdentifiers.insert(Constants::C_GLOBAL, Constants::C_GLOBAL_ID);
}

UniqueIDManager::~UniqueIDManager()
{
    m_instance = 0;
}

bool UniqueIDManager::hasUniqueIdentifier(const QString &id) const
{
    return m_uniqueIdentifiers.contains(id);
}

int UniqueIDManager::uniqueIdentifier(const QString &id)
{
    if (hasUniqueIdentifier(id))
        return m_uniqueIdentifiers.value(id);

    int uid = m_uniqueIdentifiers.count() + 1;
    m_uniqueIdentifiers.insert(id, uid);
    return uid;
}

QString UniqueIDManager::stringForUniqueIdentifier(int uid)
{
    return m_uniqueIdentifiers.key(uid);
}