refs #396 move Blackmisc PQ classes into subfolder

src/blackmisc/pq/pqstring.h

@@ -0,0 +1,88 @@
+/* Copyright (C) 2013
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+//! \file
+
+#ifndef BLACKMISC_PQ_PQSTRING_H
+#define BLACKMISC_PQ_PQSTRING_H
+
+#include "blackmisc/valueobject.h"
+#include "blackmisc/blackmiscfreefunctions.h"
+#include "blackmisc/variant.h"
+
+namespace BlackMisc
+{
+    namespace PhysicalQuantities
+    {
+
+        /*!
+         * \brief Represents a physical quantity by a string
+         * \details Used to parse strings into physical quantities, validate strings
+         * \sa BlackMisc::PhysicalQuantity
+         */
+        class CPqString : public CValueObject<CPqString>
+        {
+        protected:
+            //! \copydoc CValueObject::convertToQString
+            virtual QString convertToQString(bool i18n = false) const override;
+
+        public:
+            //! Number separators / group separators
+            enum SeparatorMode
+            {
+                SeparatorsCLocale, //!< 100,000.00
+                SeparatorsLocale, //!< depending on QLocale, e.g. 100.000,00 in Germany
+                SeparatorsBestGuess //!< try to figure out
+            };
+
+            //! Group and digit separator
+            enum SeparatorIndex
+            {
+                Group,
+                Digit
+            };
+
+            //! Default constructor
+            CPqString() = default;
+
+            //! Constructor, for values such as 10km/h
+            CPqString(const QString &value) : m_string(value) {}
+
+            //! Parse a string value like "100m", "10.3Mhz"
+            static CVariant parseToVariant(const QString &value, SeparatorMode mode = SeparatorsCLocale);
+
+            //! Parse into concrete type
+            template <class PQ> static PQ parse(const QString &value, SeparatorMode mode = SeparatorsCLocale)
+            {
+                PQ invalid;
+                invalid.setNull();
+                if (value.isEmpty()) return invalid;
+                CVariant qv = parseToVariant(value, mode);
+                if (!qv.isNull() && qv.canConvert<PQ>())
+                {
+                    return qv.value<PQ>();
+                }
+                return invalid;
+            }
+
+            //! Locale aware parsing
+            static double parseNumber(const QString &number, bool &success, SeparatorMode mode = SeparatorsCLocale);
+
+        private:
+            BLACK_ENABLE_TUPLE_CONVERSION(CPqString)
+            QString m_string;
+        };
+
+    }
+}
+
+BLACK_DECLARE_TUPLE_CONVERSION(BlackMisc::PhysicalQuantities::CPqString, (o.m_string))
+Q_DECLARE_METATYPE(BlackMisc::PhysicalQuantities::CPqString)
+
+#endif // guard