1 files changed, 59 insertions, 0 deletions
diff --git a/lib/util.h b/lib/util.h
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+++ b/lib/util.h
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+/******************************************************************************
+ * Copyright (C) 2016 Kitsune Ral <kitsune-ral@users.sf.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#pragma once
+
+#include <QtCore/QMetaEnum>
+#include <QtCore/QDebug>
+
+#include <functional>
+#include <memory>
+
+namespace QMatrixClient
+{
+    // The below enables pretty-printing of enums in logs
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 5, 0))
+#define REGISTER_ENUM(EnumName) Q_ENUM(EnumName)
+#else
+    // Thanks to Olivier for spelling it and for making Q_ENUM to replace it:
+    // https://woboq.com/blog/q_enum.html
+#define REGISTER_ENUM(EnumName) \
+    Q_ENUMS(EnumName) \
+    friend QDebug operator<<(QDebug dbg, EnumName val) \
+    { \
+        static int enumIdx = staticMetaObject.indexOfEnumerator(#EnumName); \
+        return dbg << Event::staticMetaObject.enumerator(enumIdx).valueToKey(int(val)); \
+    }
+#endif
+
+    template <typename T1, typename PtrT2>
+    inline auto unique_ptr_cast(PtrT2&& p)
+    {
+        return std::unique_ptr<T1>(static_cast<T1*>(p.release()));
+    }
+
+#if QT_VERSION < QT_VERSION_CHECK(5, 7, 0)
+    // Copy-pasted from Qt 5.10
+    template <typename T>
+    Q_DECL_CONSTEXPR typename std::add_const<T>::type &qAsConst(T &t) Q_DECL_NOTHROW { return t; }
+    // prevent rvalue arguments:
+    template <typename T>
+    static void qAsConst(const T &&) Q_DECL_EQ_DELETE;
+#endif
+}  // namespace QMatrixClient
+