core: rename uniqueidmanager.{cpp,h} as the class UniqueIdManager is gone

Change-Id: Iffe04bc3bb0103cbac605f0734bbfd66eb7fd854
Reviewed-on: http://codereview.qt.nokia.com/4215
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/coreplugin/id.cpp

@@ -0,0 +1,88 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (info@qt.nokia.com)
+**
+**
+** GNU Lesser General Public License Usage
+**
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this file.
+** Please review the following information to ensure the GNU Lesser General
+** Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** Other Usage
+**
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at info@qt.nokia.com.
+**
+**************************************************************************/
+
+#include "id.h"
+#include "coreconstants.h"
+#include "icontext.h"
+
+#include <QtCore/QHash>
+
+namespace Core {
+
+/*!
+    \class Core::Id
+
+    \brief The class Id encapsulates an identifier. It is used as a type-safe
+    helper class instead of a \c QString or \c QByteArray. The internal
+    representation of the id is assumed to be plain 7-bit-clean ASCII.
+
+*/
+
+uint qHash(const Core::Id &id) { return qHash(id.name()); }
+
+static QHash<Core::Id, int> &theUniqueIdentifiers()
+{
+    static QHash<Core::Id, int> data;
+    return data;
+}
+
+int Id::uniqueIdentifier() const
+{
+    if (theUniqueIdentifiers().contains(*this))
+        return theUniqueIdentifiers().value(*this);
+
+    const int uid = theUniqueIdentifiers().count() + 1;
+    theUniqueIdentifiers().insert(*this, uid);
+    return uid;
+}
+
+Id Id::fromUniqueIdentifier(int uid)
+{
+    return theUniqueIdentifiers().key(uid);
+}
+
+Context::Context(const char *id, int offset)
+{
+    d.append(Id(QString(id) + QString::number(offset)).uniqueIdentifier());
+}
+
+void Context::add(const char *id)
+{
+    d.append(Id(id).uniqueIdentifier());
+}
+
+bool Context::contains(const char *id) const
+{
+    return d.contains(Id(id).uniqueIdentifier());
+}
+
+} // namespace Core