61 lines
1.6 KiB
C++
61 lines
1.6 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
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#include <QtGui/private/qtguiglobal_p.h>
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#include <QtCore/qpoint.h>
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#include <QtCore/qstring.h>
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#include <QtGui/qpolygon.h>
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#include <QtCore/qstringbuilder.h>
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#ifndef QHEXSTRING_P_H
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#define QHEXSTRING_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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QT_BEGIN_NAMESPACE
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// internal helper. Converts an integer value to a unique string token
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template <typename T>
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struct HexString
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{
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inline HexString(const T t)
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: val(t)
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{}
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inline void write(QChar *&dest) const
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{
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const char16_t hexChars[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
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const char *c = reinterpret_cast<const char *>(&val);
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for (uint i = 0; i < sizeof(T); ++i) {
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*dest++ = hexChars[*c & 0xf];
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*dest++ = hexChars[(*c & 0xf0) >> 4];
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++c;
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}
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}
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const T val;
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};
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// specialization to enable fast concatenating of our string tokens to a string
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template <typename T>
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struct QConcatenable<HexString<T> >
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{
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typedef HexString<T> type;
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enum { ExactSize = true };
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static int size(const HexString<T> &) { return sizeof(T) * 2; }
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static inline void appendTo(const HexString<T> &str, QChar *&out) { str.write(out); }
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typedef QString ConvertTo;
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};
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QT_END_NAMESPACE
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#endif // QHEXSTRING_P_H
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