1 files changed, 50 insertions, 0 deletions

diff --git a/framework/domain/selector.h b/framework/domain/selector.h
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+++ b/framework/domain/selector.h
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+/*
+    Copyright (c) 2016 Christian Mollekofp <mollekopf@kolabsys.com>
+
+    This library is free software; you can redistribute it and/or modify it
+    under the terms of the GNU Library General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    This library 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 Library General Public
+    License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to the
+    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+    02110-1301, USA.
+*/
+#pragma once
+
+#include <QAbstractItemModel>
+#include <QString>
+
+/**
+ * Exposes a model and maintains a current index selection.
+ */
+class Selector : public QObject {
+    Q_OBJECT
+    Q_PROPERTY (int currentIndex READ currentIndex WRITE setCurrentIndex)
+    Q_PROPERTY (QAbstractItemModel* model READ model CONSTANT)
+
+public:
+    Selector(QAbstractItemModel *model);
+
+    virtual QAbstractItemModel *model() { return mModel; }
+
+    void setCurrentIndex(int i) {
+        mCurrentIndex = i;
+        Q_ASSERT(mModel);
+        setCurrent(mModel->index(mCurrentIndex, 0));
+    }
+
+    int currentIndex() { return mCurrentIndex; }
+
+    virtual void setCurrent(const QModelIndex &) = 0;
+private:
+    QAbstractItemModel *mModel = nullptr;
+    int mCurrentIndex = 0;
+};
+