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/*
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* QR Code generator library (.NET)
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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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using System.Collections.Generic;
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using System.IO;
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using System.Drawing.Imaging;
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using System.Text;
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namespace Io.Nayuki.QrCodeGen.Demo
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{
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internal class Program
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{
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// The main application program.
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internal static void Main(string[] args)
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{
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DoBasicDemo();
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DoVarietyDemo();
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DoSegmentDemo();
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DoMaskDemo();
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}
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/*---- Demo suite ----*/
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// Creates a single QR Code, then writes it to a PNG file and an SVG file.
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private static void DoBasicDemo()
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{
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const string text = "Hello, world!"; // User-supplied Unicode text
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QrCode.Ecc errCorLvl = QrCode.Ecc.Low; // Error correction level
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var qr = QrCode.EncodeText(text, errCorLvl); // Make the QR Code symbol
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using (var img = qr.ToBitmap(10, 4)) // Convert to bitmap image
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{
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img.Save("hello-world-QR.png", ImageFormat.Png); // Write image to file
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}
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string svg = qr.ToSvgString(4); // Convert to SVG XML code
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File.WriteAllText("hello-world-QR.svg", svg, Encoding.UTF8); // Write image to file
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}
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// Creates a variety of QR Codes that exercise different features of the library, and writes each one to file.
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private static void DoVarietyDemo() {
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QrCode qr;
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// Numeric mode encoding (3.33 bits per digit)
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qr = QrCode.EncodeText("314159265358979323846264338327950288419716939937510", QrCode.Ecc.Medium);
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SaveAsPng(qr, "pi-digits-QR.png", 13, 1);
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// Alphanumeric mode encoding (5.5 bits per character)
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qr = QrCode.EncodeText("DOLLAR-AMOUNT:$39.87 PERCENTAGE:100.00% OPERATIONS:+-*/", QrCode.Ecc.High);
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SaveAsPng(qr, "alphanumeric-QR.png", 10, 2);
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// Unicode text as UTF-8
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qr = QrCode.EncodeText("こんにちwa、世界！ αβγδ", QrCode.Ecc.Quartile);
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SaveAsPng(qr, "unicode-QR.png", 10, 3);
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// Moderately large QR Code using longer text (from Lewis Carroll's Alice in Wonderland)
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qr = QrCode.EncodeText(
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"Alice was beginning to get very tired of sitting by her sister on the bank, "
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+ "and of having nothing to do: once or twice she had peeped into the book her sister was reading, "
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+ "but it had no pictures or conversations in it, 'and what is the use of a book,' thought Alice "
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+ "'without pictures or conversations?' So she was considering in her own mind (as well as she could, "
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+ "for the hot day made her feel very sleepy and stupid), whether the pleasure of making a "
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+ "daisy-chain would be worth the trouble of getting up and picking the daisies, when suddenly "
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+ "a White Rabbit with pink eyes ran close by her.", QrCode.Ecc.High);
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SaveAsPng(qr, "alice-wonderland-QR.png", 6, 10);
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}
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// Creates QR Codes with manually specified segments for better compactness.
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private static void DoSegmentDemo()
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{
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QrCode qr;
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List<QrSegment> segs;
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// Illustration "silver"
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var silver0 = "THE SQUARE ROOT OF 2 IS 1.";
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var silver1 = "41421356237309504880168872420969807856967187537694807317667973799";
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qr = QrCode.EncodeText(silver0 + silver1, QrCode.Ecc.Low);
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SaveAsPng(qr, "sqrt2-monolithic-QR.png", 10, 3);
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segs = new List<QrSegment>
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{
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QrSegment.MakeAlphanumeric(silver0),
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QrSegment.MakeNumeric(silver1)
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};
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qr = QrCode.EncodeSegments(segs, QrCode.Ecc.Low);
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SaveAsPng(qr, "sqrt2-segmented-QR.png", 10, 3);
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// Illustration "golden"
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string golden0 = "Golden ratio φ = 1.";
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string golden1 =
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"6180339887498948482045868343656381177203091798057628621354486227052604628189024497072072041893911374";
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string golden2 = "......";
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qr = QrCode.EncodeText(golden0 + golden1 + golden2, QrCode.Ecc.Low);
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SaveAsPng(qr, "phi-monolithic-QR.png", 8, 5);
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segs = new List<QrSegment>
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{
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QrSegment.MakeBytes(Encoding.UTF8.GetBytes(golden0)),
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QrSegment.MakeNumeric(golden1),
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QrSegment.MakeAlphanumeric(golden2)
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};
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qr = QrCode.EncodeSegments(segs, QrCode.Ecc.Low);
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SaveAsPng(qr, "phi-segmented-QR.png", 8, 5);
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// Illustration "Madoka": kanji, kana, Cyrillic, full-width Latin, Greek characters
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string madoka = "「魔法少女まどか☆マギカ」って、 ИАИ ｄｅｓｕ κα？";
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qr = QrCode.EncodeText(madoka, QrCode.Ecc.Low);
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SaveAsPng(qr, "madoka-utf8-QR.png", 9, 4);
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segs = new List<QrSegment>
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{
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// QrSegmentAdvanced.MakeKanji(madoka)
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};
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qr = QrCode.EncodeSegments(segs, QrCode.Ecc.Low);
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SaveAsPng(qr, "madoka-kanji-QR.png", 9, 4);
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}
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// Creates QR Codes with the same size and contents but different mask patterns.
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private static void DoMaskDemo() {
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QrCode qr;
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List<QrSegment> segs;
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// Project Nayuki URL
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segs = QrSegment.MakeSegments("https://www.nayuki.io/");
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qr = QrCode.EncodeSegments(segs, QrCode.Ecc.High, QrCode.MinVersion, QrCode.MaxVersion, -1, true); // Automatic mask
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SaveAsPng(qr, "project-nayuki-automask-QR.png", 8, 6);
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qr = QrCode.EncodeSegments(segs, QrCode.Ecc.High, QrCode.MinVersion, QrCode.MaxVersion, 3, true); // Force mask 3
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SaveAsPng(qr, "project-nayuki-mask3-QR.png", 8, 6);
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// Chinese text as UTF-8
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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");
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qr = QrCode.EncodeSegments(segs, QrCode.Ecc.Medium, QrCode.MinVersion, QrCode.MaxVersion, 0, true); // Force mask 0
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SaveAsPng(qr, "unicode-mask0-QR.png", 10, 3);
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qr = QrCode.EncodeSegments(segs, QrCode.Ecc.Medium, QrCode.MinVersion, QrCode.MaxVersion, 1, true); // Force mask 1
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SaveAsPng(qr, "unicode-mask1-QR.png", 10, 3);
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qr = QrCode.EncodeSegments(segs, QrCode.Ecc.Medium, QrCode.MinVersion, QrCode.MaxVersion, 5, true); // Force mask 5
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SaveAsPng(qr, "unicode-mask5-QR.png", 10, 3);
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qr = QrCode.EncodeSegments(segs, QrCode.Ecc.Medium, QrCode.MinVersion, QrCode.MaxVersion, 7, true); // Force mask 7
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SaveAsPng(qr, "unicode-mask7-QR.png", 10, 3);
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}
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#region Utilities
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private static void SaveAsPng(QrCode qrCode, string filename, int scale, int border)
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{
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using (var bitmap = qrCode.ToBitmap(scale, border))
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{
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bitmap.Save(filename, ImageFormat.Png);
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}
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}
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#endregion
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}
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}
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manuelbl
7 years ago