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** GNU Lesser General Public License Usage
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** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
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#include "uniqueidmanager.h"
#include "coreconstants.h"

using namespace Core;

UniqueIDManager *UniqueIDManager::m_instance = 0;

UniqueIDManager::UniqueIDManager()
{
    m_instance = this;
}

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

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

int UniqueIDManager::uniqueIdentifier(const Id &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);
}

// FIXME: Move to some better place.
#include "icontext.h"

static int toId(const char *id)
{
    return UniqueIDManager::instance()->uniqueIdentifier(id);
}

Context::Context(const char *id, int offset)
{
    d.append(UniqueIDManager::instance()
        -> uniqueIdentifier(Id(QString(id) + QString::number(offset))));
}

void Context::add(const char *id)
{
    d.append(toId(id));
}

bool Context::contains(const char *id) const
{
    return d.contains(toId(id));
}