1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtGui module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #include <QtGui/private/qtguiglobal_p.h> 41 #include <QtCore/qpoint.h> 42 #include <QtCore/qstring.h> 43 #include <QtGui/qpolygon.h> 44 #include <QtCore/qstringbuilder.h> 45 46 #ifndef QHEXSTRING_P_H 47 #define QHEXSTRING_P_H 48 49 // 50 // W A R N I N G 51 // ------------- 52 // 53 // This file is not part of the Qt API. It exists purely as an 54 // implementation detail. This header file may change from version to 55 // version without notice, or even be removed. 56 // 57 // We mean it. 58 // 59 60 QT_BEGIN_NAMESPACE 61 62 // internal helper. Converts an integer value to a unique string token 63 template <typename T> 64 struct HexString 65 { HexStringHexString66 inline HexString(const T t) 67 : val(t) 68 {} 69 writeHexString70 inline void write(QChar *&dest) const 71 { 72 const ushort hexChars[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' }; 73 const char *c = reinterpret_cast<const char *>(&val); 74 for (uint i = 0; i < sizeof(T); ++i) { 75 *dest++ = hexChars[*c & 0xf]; 76 *dest++ = hexChars[(*c & 0xf0) >> 4]; 77 ++c; 78 } 79 } 80 const T val; 81 }; 82 83 // specialization to enable fast concatenating of our string tokens to a string 84 template <typename T> 85 struct QConcatenable<HexString<T> > 86 { 87 typedef HexString<T> type; 88 enum { ExactSize = true }; 89 static int size(const HexString<T> &) { return sizeof(T) * 2; } 90 static inline void appendTo(const HexString<T> &str, QChar *&out) { str.write(out); } 91 typedef QString ConvertTo; 92 }; 93 94 QT_END_NAMESPACE 95 96 #endif // QHEXSTRING_P_H 97