ObsidianDragon - DragonX ImGui Wallet
Full-node GUI wallet for DragonX cryptocurrency. Built with Dear ImGui, SDL3, and OpenGL3/DX11. Features: - Send/receive shielded and transparent transactions - Autoshield with merged transaction display - Built-in CPU mining (xmrig) - Peer management and network monitoring - Wallet encryption with PIN lock - QR code generation for receive addresses - Transaction history with pagination - Console for direct RPC commands - Cross-platform (Linux, Windows)
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dan_s
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libs/qrcode/QrSegment.hpp
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libs/qrcode/QrSegment.hpp
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/*
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* QR Code generator library (C++)
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*
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* Copyright (c) Project Nayuki. (MIT License)
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* https://www.nayuki.io/page/qr-code-generator-library
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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* - The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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* - The Software is provided "as is", without warranty of any kind, express or
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* implied, including but not limited to the warranties of merchantability,
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* fitness for a particular purpose and noninfringement. In no event shall the
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* authors or copyright holders be liable for any claim, damages or other
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* liability, whether in an action of contract, tort or otherwise, arising from,
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* out of or in connection with the Software or the use or other dealings in the
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* Software.
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*/
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#pragma once
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#include <cstdint>
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#include <vector>
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#include "BitBuffer.hpp"
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namespace qrcodegen {
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/*
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* A segment of character/binary/control data in a QR Code symbol.
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* Instances of this class are immutable.
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* The mid-level way to create a segment is to take the payload data
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* and call a static factory function such as QrSegment::makeNumeric().
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* The low-level way to create a segment is to custom-make the bit buffer
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* and call the QrSegment() constructor with appropriate values.
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* This segment class imposes no length restrictions, but QR Codes have restrictions.
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* Even in the most favorable conditions, a QR Code can only hold 7089 characters of data.
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* Any segment longer than this is meaningless for the purpose of generating QR Codes.
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*/
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class QrSegment final {
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/*---- Public helper enumeration ----*/
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/*
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* Describes how a segment's data bits are interpreted. Immutable.
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*/
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public: class Mode final {
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/*-- Constants --*/
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public: static const Mode NUMERIC;
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public: static const Mode ALPHANUMERIC;
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public: static const Mode BYTE;
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public: static const Mode KANJI;
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public: static const Mode ECI;
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/*-- Fields --*/
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// The mode indicator bits, which is a uint4 value (range 0 to 15).
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private: int modeBits;
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// Number of character count bits for three different version ranges.
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private: int numBitsCharCount[3];
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/*-- Constructor --*/
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private: Mode(int mode, int cc0, int cc1, int cc2);
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/*-- Methods --*/
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/*
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* (Package-private) Returns the mode indicator bits, which is an unsigned 4-bit value (range 0 to 15).
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*/
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public: int getModeBits() const;
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/*
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* (Package-private) Returns the bit width of the character count field for a segment in
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* this mode in a QR Code at the given version number. The result is in the range [0, 16].
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*/
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public: int numCharCountBits(int ver) const;
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};
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/*---- Static factory functions (mid level) ----*/
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/*
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* Returns a segment representing the given binary data encoded in
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* byte mode. All input byte vectors are acceptable. Any text string
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* can be converted to UTF-8 bytes and encoded as a byte mode segment.
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*/
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public: static QrSegment makeBytes(const std::vector<std::uint8_t> &data);
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/*
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* Returns a segment representing the given string of decimal digits encoded in numeric mode.
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*/
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public: static QrSegment makeNumeric(const char *digits);
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/*
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* Returns a segment representing the given text string encoded in alphanumeric mode.
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* The characters allowed are: 0 to 9, A to Z (uppercase only), space,
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* dollar, percent, asterisk, plus, hyphen, period, slash, colon.
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*/
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public: static QrSegment makeAlphanumeric(const char *text);
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/*
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* Returns a list of zero or more segments to represent the given text string. The result
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* may use various segment modes and switch modes to optimize the length of the bit stream.
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*/
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public: static std::vector<QrSegment> makeSegments(const char *text);
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/*
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* Returns a segment representing an Extended Channel Interpretation
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* (ECI) designator with the given assignment value.
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*/
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public: static QrSegment makeEci(long assignVal);
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/*---- Public static helper functions ----*/
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/*
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* Tests whether the given string can be encoded as a segment in alphanumeric mode.
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* A string is encodable iff each character is in the following set: 0 to 9, A to Z
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* (uppercase only), space, dollar, percent, asterisk, plus, hyphen, period, slash, colon.
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*/
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public: static bool isAlphanumeric(const char *text);
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/*
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* Tests whether the given string can be encoded as a segment in numeric mode.
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* A string is encodable iff each character is in the range 0 to 9.
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*/
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public: static bool isNumeric(const char *text);
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/*---- Instance fields ----*/
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/* The mode indicator of this segment. Accessed through getMode(). */
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private: Mode mode;
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/* The length of this segment's unencoded data. Measured in characters for
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* numeric/alphanumeric/kanji mode, bytes for byte mode, and 0 for ECI mode.
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* Always zero or positive. Not the same as the data's bit length.
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* Accessed through getNumChars(). */
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private: int numChars;
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/* The data bits of this segment. Accessed through getData(). */
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private: std::vector<bool> data;
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/*---- Constructors (low level) ----*/
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/*
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* Creates a new QR Code segment with the given attributes and data.
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* The character count (numCh) must agree with the mode and the bit buffer length,
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* but the constraint isn't checked. The given bit buffer is copied and stored.
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*/
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public: QrSegment(Mode md, int numCh, const std::vector<bool> &dt);
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/*
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* Creates a new QR Code segment with the given parameters and data.
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* The character count (numCh) must agree with the mode and the bit buffer length,
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* but the constraint isn't checked. The given bit buffer is moved and stored.
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*/
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public: QrSegment(Mode md, int numCh, std::vector<bool> &&dt);
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/*---- Methods ----*/
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/*
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* Returns the mode field of this segment.
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*/
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public: Mode getMode() const;
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/*
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* Returns the character count field of this segment.
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*/
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public: int getNumChars() const;
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/*
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* Returns the data bits of this segment.
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*/
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public: const std::vector<bool> &getData() const;
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// (Package-private) Calculates the number of bits needed to encode the given segments at
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// the given version. Returns a non-negative number if successful. Otherwise returns -1 if a
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// segment has too many characters to fit its length field, or the total bits exceeds INT_MAX.
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public: static int getTotalBits(const std::vector<QrSegment> &segs, int version);
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/*---- Private constant ----*/
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/* The set of all legal characters in alphanumeric mode, where
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* each character value maps to the index in the string. */
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private: static const char *ALPHANUMERIC_CHARSET;
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};
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}
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