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Program.cs
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/*
* QR code generator library (.NET)
*
* Copyright (c) Manuel Bleichenbacher (MIT License)
* https://github.com/manuelbl/QrCodeGenerator
* Copyright (c) Project Nayuki (MIT License)
* https://www.nayuki.io/page/qr-code-generator-library
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
using System.Collections.Generic;
using System.IO;
using System.Text;
namespace Net.Codecrete.QrCodeGenerator.Demo
{
internal class Program
{
// The main application program.
internal static void Main()
{
DoBasicDemo();
DoVarietyDemo();
DoSegmentDemo();
DoMaskDemo();
DoBinaryDemo();
}
#region Demo suite
// Creates a single QR code, then writes it to an SVG file.
private static void DoBasicDemo()
{
const string text = "Hello, world!"; // User-supplied Unicode text
var errCorLvl = QrCode.Ecc.Low; // Error correction level
var qr = QrCode.EncodeText(text, errCorLvl); // Make the QR code symbol
SaveAsSvg(qr, "hello-world-QR.svg", border: 4); // Save as SVG
}
// Creates a variety of QR codes that exercise different features of the library, and writes each one to file.
private static void DoVarietyDemo()
{
// Numeric mode encoding (3.33 bits per digit)
var qr = QrCode.EncodeText("314159265358979323846264338327950288419716939937510", QrCode.Ecc.Medium);
SaveAsSvg(qr, "pi-digits-QR.svg");
// Alphanumeric mode encoding (5.5 bits per character)
qr = QrCode.EncodeText("DOLLAR-AMOUNT:$39.87 PERCENTAGE:100.00% OPERATIONS:+-*/", QrCode.Ecc.High);
SaveAsSvg(qr, "alphanumeric-QR.svg", 2);
// Unicode text as UTF-8
qr = QrCode.EncodeText("こんにちwa、世界！ αβγδ", QrCode.Ecc.Quartile);
SaveAsSvg(qr, "unicode-QR.svg", 3);
// Moderately large QR code using longer text (from Lewis Carroll's Alice in Wonderland)
qr = QrCode.EncodeText(
"Alice was beginning to get very tired of sitting by her sister on the bank, "
+ "and of having nothing to do: once or twice she had peeped into the book her sister was reading, "
+ "but it had no pictures or conversations in it, 'and what is the use of a book,' thought Alice "
+ "'without pictures or conversations?' So she was considering in her own mind (as well as she could, "
+ "for the hot day made her feel very sleepy and stupid), whether the pleasure of making a "
+ "daisy-chain would be worth the trouble of getting up and picking the daisies, when suddenly "
+ "a White Rabbit with pink eyes ran close by her.", QrCode.Ecc.High);
SaveAsSvg(qr, "alice-wonderland-QR.svg", 10);
}
// Creates QR codes with manually specified segments for better compactness.
private static void DoSegmentDemo()
{
// Illustration "silver"
const string silver0 = "THE SQUARE ROOT OF 2 IS 1.";
const string silver1 = "41421356237309504880168872420969807856967187537694807317667973799";
var qr = QrCode.EncodeText(silver0 + silver1, QrCode.Ecc.Low);
SaveAsSvg(qr, "sqrt2-monolithic-QR.svg", 3);
var segs = new List<QrSegment>
{
QrSegment.MakeAlphanumeric(silver0),
QrSegment.MakeNumeric(silver1)
};
qr = QrCode.EncodeSegments(segs, QrCode.Ecc.Low);
SaveAsSvg(qr, "sqrt2-segmented-QR.svg", 3);
// Illustration "golden"
const string golden0 = "Golden ratio φ = 1.";
const string golden1 =
"6180339887498948482045868343656381177203091798057628621354486227052604628189024497072072041893911374";
const string golden2 = "......";
qr = QrCode.EncodeText(golden0 + golden1 + golden2, QrCode.Ecc.Low);
SaveAsSvg(qr, "phi-monolithic-QR.svg", 5);
segs = new List<QrSegment>
{
QrSegment.MakeBytes(Encoding.UTF8.GetBytes(golden0)),
QrSegment.MakeNumeric(golden1),
QrSegment.MakeAlphanumeric(golden2)
};
qr = QrCode.EncodeSegments(segs, QrCode.Ecc.Low);
SaveAsSvg(qr, "phi-segmented-QR.svg", 5);
// Illustration "Madoka": kanji, kana, Cyrillic, full-width Latin, Greek characters
const string madoka = "「魔法少女まどか☆マギカ」って、 ИАИ ｄｅｓｕ κα？";
qr = QrCode.EncodeText(madoka, QrCode.Ecc.Low);
SaveAsSvg(qr, "madoka-utf8-QR.svg", 4);
segs = new List<QrSegment> { QrSegmentAdvanced.MakeKanji(madoka) };
qr = QrCode.EncodeSegments(segs, QrCode.Ecc.Low);
SaveAsSvg(qr, "madoka-kanji-QR.svg", 4);
}
// Creates QR codes with the same size and contents but different mask patterns.
private static void DoMaskDemo()
{
// Project Nayuki URL
var segs = QrSegment.MakeSegments("https://www.nayuki.io/");
var qr = QrCode.EncodeSegments(segs, QrCode.Ecc.High);
SaveAsSvg(qr, "project-nayuki-automask-QR.svg", 6);
qr = QrCode.EncodeSegments(segs, QrCode.Ecc.High, QrCode.MinVersion, QrCode.MaxVersion, 3); // Force mask 3
SaveAsSvg(qr, "project-nayuki-mask3-QR.svg", 6);
// Chinese text as UTF-8
segs = QrSegment.MakeSegments("維基百科（Wikipedia，聆聽i/ˌwɪkᵻˈpiːdi.ə/）是一個自由內容、公開編輯且多語言的網路百科全書協作計畫");
qr = QrCode.EncodeSegments(segs, QrCode.Ecc.Medium, QrCode.MinVersion, QrCode.MaxVersion, 0); // Force mask 0
SaveAsSvg(qr, "unicode-mask0-QR.svg");
qr = QrCode.EncodeSegments(segs, QrCode.Ecc.Medium, QrCode.MinVersion, QrCode.MaxVersion, 1); // Force mask 1
SaveAsSvg(qr, "unicode-mask1-QR.svg");
qr = QrCode.EncodeSegments(segs, QrCode.Ecc.Medium, QrCode.MinVersion, QrCode.MaxVersion, 5); // Force mask 5
SaveAsSvg(qr, "unicode-mask5-QR.svg");
qr = QrCode.EncodeSegments(segs, QrCode.Ecc.Medium, QrCode.MinVersion, QrCode.MaxVersion, 7); // Force mask 7
SaveAsSvg(qr, "unicode-mask7-QR.svg");
}
private static void DoBinaryDemo()
{
// create binary data
byte[] data = {
0x47, 0x49, 0x46, 0x38, 0x39, 0x61, 0x01, 0x00,
0x01, 0x00, 0x80, 0x01, 0x00, 0xff, 0xff, 0xff,
0x00, 0x00, 0x00, 0x21, 0xf9, 0x04, 0x01, 0x0a,
0x00, 0x01, 0x00, 0x2c, 0x00, 0x00, 0x00, 0x00,
0x01, 0x00, 0x01, 0x00, 0x00, 0x02, 0x02, 0x4c,
0x01, 0x00, 0x3b
};
var qr = QrCode.EncodeBinary(data, QrCode.Ecc.Medium);
SaveAsSvg(qr, "binary.svg");
}
#endregion
private static void SaveAsSvg(QrCode qrCode, string filname, int border = 3)
{
string svg = qrCode.ToSvgString(border); // Convert to SVG XML code
File.WriteAllText(filname, svg, Encoding.UTF8); // Write image to file
}
}
}