Add KDDockWidgets_p.h to hold private enums

src/KDDockWidgets_p.h

@@ -0,0 +1,41 @@
+/*
+  This file is part of KDDockWidgets.
+
+  SPDX-FileCopyrightText: 2019-2022 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
+  Author: Sérgio Martins <sergio.martins@kdab.com>
+
+  SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only
+
+  Contact KDAB at <info@kdab.com> for commercial licensing options.
+*/
+
+#ifndef KD_KDDOCKWIDGETS_P_H
+#define KD_KDDOCKWIDGETS_P_H
+#pragma once
+
+#include "KDDockWidgets.h"
+#include <QString>
+
+namespace KDDockWidgets {
+
+inline QString locationStr(Location loc)
+{
+    switch (loc) {
+    case KDDockWidgets::Location_None:
+        return QStringLiteral("none");
+    case KDDockWidgets::Location_OnLeft:
+        return QStringLiteral("left");
+    case KDDockWidgets::Location_OnTop:
+        return QStringLiteral("top");
+    case KDDockWidgets::Location_OnRight:
+        return QStringLiteral("right");
+    case KDDockWidgets::Location_OnBottom:
+        return QStringLiteral("bottom");
+    }
+
+    return QString();
+}
+
+}
+
+#endif