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diff --git a/krita/sdk/kis_id.h b/krita/sdk/kis_id.h
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+/* 
+ * This file is part of the KDE project
+ * 
+ * Copyright (c) 2005 Boudewijn Rempt <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef _KIS_ID_H_
+#define _KIS_ID_H_
+
+#include <qvaluelist.h>
+#include <qstring.h>
+
+/**
+ * Krita has a large number of extensible resources. Think:
+ *
+ * - Brushes
+ * - Palettes
+ * - Patterns
+ * - Gradients
+ * - Color models
+ * - Filters
+ * - Composition operations
+ * - Paint operations
+ * - Tools
+ * - Docker tabs
+ * 
+ * and more...
+ *
+ * Many of these resources are stored in KisGenericRegistry-based
+ * registries. If we store these resources with a descriptive string
+ * as a key use the same string in our UI, then our UI will not be
+ * localizable, because the identifications of particular resources
+ * will be stored in files, and those files need to be exchangeable.
+ *
+ * So, instead we use and ID class that couples an identification
+ * string that will be the same across all languages, an i18n-able
+ * string that will be used in comboboxes and that has a fast equality
+ * operator to make it well suited for use as key in a registry map.
+ *
+ * That last bit has not been solved yet.
+ *
+ */
+class KisID {
+
+
+public:
+
+    KisID() : m_id(QString::null), m_name(QString::null) {}
+
+    KisID(const QString & id, const QString & name = QString::null)
+        : m_id(id),
+          m_name(name) {};
+
+    QString id() const { return m_id; };
+    QString name() const { return m_name; };
+
+    friend inline bool operator==(const KisID &, const KisID &);
+    friend inline bool operator!=(const KisID &, const KisID &);
+    friend inline bool operator<(const KisID &, const KisID &);
+    friend inline bool operator>(const KisID &, const KisID &);
+
+private:
+
+    QString m_id;
+    QString m_name;
+
+};
+
+inline bool operator==(const KisID &v1, const KisID &v2)
+{
+     return v1.m_id == v2.m_id;
+}
+
+inline bool operator!=(const KisID &v1, const KisID &v2)
+{
+    return v1.m_id != v2.m_id;
+}
+
+
+inline bool operator<(const KisID &v1, const KisID &v2)
+{
+    return v1.m_id < v2.m_id;
+}
+
+
+inline bool operator>(const KisID &v1, const KisID &v2)
+{
+    return v1.m_id < v2.m_id;
+}
+
+
+typedef QValueList<KisID> KisIDList;
+
+#endif // _KIS_ID_H_