public static Image CreateOutput(this QRMatrix matrix,
Color?trueColor = null,
Color?falseColor = null,
ImageScale?scale = ImageScale.Scale1x)
{
return(createOutput(matrix, trueColor, falseColor, scale));
}
public static void ToJPG(this QRMatrix matrix,
System.IO.Stream stream,
Color?trueColor = null,
Color?falseColor = null,
ImageScale?scale = ImageScale.Scale1x)
{
var output = createOutput(matrix, trueColor, falseColor, scale);
output.Save(stream, JpegImageFormat.Standard);
}
public static void ToGIF(this QRMatrix matrix,
System.IO.Stream stream,
Color?trueColor = null,
Color?falseColor = null,
ImageScale?scale = ImageScale.Scale1x)
{
var output = createOutput(matrix, trueColor, falseColor, scale);
output.Save(stream, GifImageFormat.Monochrome);
}
public static void ToGIF(this QRMatrix matrix,
System.IO.Stream stream,
Color?trueColor = null,
Color?falseColor = null,
ImageScale?scale = ImageScale.Scale1x)
{
var output = createDrawingOutput(matrix, trueColor, falseColor, scale);
output.ToImage(stream, ImageFormat.Gif);
}
private static Image createOutput(QRMatrix matrix,
Color?trueColor = null,
Color?falseColor = null,
ImageScale?scale = ImageScale.Scale1x)
{
var black = trueColor ?? Color.Black;
var white = falseColor ?? Color.White;
if (black == white)
{
throw new NFXException(StringConsts.ARGUMENT_ERROR + typeof(QRImageRenderer).Name + ".ToBitmap(trueColor!=falseColor)");
}
int scaleFactor = (int)scale;
int canvasWidth = matrix.Width * scaleFactor;
int canvasHeight = matrix.Height * scaleFactor;
var result = Image.Of(canvasWidth, canvasHeight);
using (var canvas = result.CreateCanvas())
using (var blackBrush = canvas.CreateSolidBrush(black))
using (var whiteBrush = canvas.CreateSolidBrush(white))
{
canvas.FillRectangle(blackBrush, 0, 0, canvasWidth, canvasHeight);
for (int yMatrix = 0; yMatrix < matrix.Height; yMatrix++)
{
for (int xMatrix = 0; xMatrix < matrix.Width; xMatrix++)
{
if (matrix[xMatrix, yMatrix] == 0)
{
int scaledX = xMatrix * scaleFactor;
int scaledY = yMatrix * scaleFactor;
canvas.FillRectangle(whiteBrush, scaledX, scaledY, scaleFactor, scaleFactor);
}
}
}
return(result);
}
}
public void BuildMatrix()
{
const int WIDTH = 21, HEIGHT = 21;
// From http://www.swetake.com/qr/qr7.html
int[] ints = {
32, 65, 205, 69, 41, 220, 46, 128, 236,
42, 159, 74, 221, 244, 169, 239, 150, 138,
70, 237, 85, 224, 96, 74, 219 , 61};
BitList bits = new BitList();
foreach (int i in ints)
bits.AppendBits(i, 8);
QRMatrix matrix = new QRMatrix(WIDTH, HEIGHT);
matrix.FormMatrix(bits, QRCorrectionLevel.H, QRVersion.GetVersionByNumber(1), 3);
string expected =
"1 1 1 1 1 1 1 0 0 1 1 0 0 0 1 1 1 1 1 1 1\r\n" +
"1 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 1\r\n" +
"1 0 1 1 1 0 1 0 0 0 0 1 0 0 1 0 1 1 1 0 1\r\n" +
"1 0 1 1 1 0 1 0 0 1 1 0 0 0 1 0 1 1 1 0 1\r\n" +
"1 0 1 1 1 0 1 0 1 1 0 0 1 0 1 0 1 1 1 0 1\r\n" +
"1 0 0 0 0 0 1 0 0 0 1 1 1 0 1 0 0 0 0 0 1\r\n" +
"1 1 1 1 1 1 1 0 1 0 1 0 1 0 1 1 1 1 1 1 1\r\n" +
"0 0 0 0 0 0 0 0 1 1 0 1 1 0 0 0 0 0 0 0 0\r\n" +
"0 0 1 1 0 0 1 1 1 0 0 1 1 1 1 0 1 0 0 0 0\r\n" +
"1 0 1 0 1 0 0 0 0 0 1 1 1 0 0 1 0 1 1 1 0\r\n" +
"1 1 1 1 0 1 1 0 1 0 1 1 1 0 0 1 1 1 0 1 0\r\n" +
"1 0 1 0 1 1 0 1 1 1 0 0 1 1 1 0 0 1 0 1 0\r\n" +
"0 0 1 0 0 1 1 1 0 0 0 0 0 0 1 0 1 1 1 1 1\r\n" +
"0 0 0 0 0 0 0 0 1 1 0 1 0 0 0 0 0 1 0 1 1\r\n" +
"1 1 1 1 1 1 1 0 1 1 1 1 0 0 0 0 1 0 1 1 0\r\n" +
"1 0 0 0 0 0 1 0 0 0 0 1 0 1 1 1 0 0 0 0 0\r\n" +
"1 0 1 1 1 0 1 0 0 1 0 0 1 1 0 0 1 0 0 1 1\r\n" +
"1 0 1 1 1 0 1 0 1 1 0 1 0 0 0 0 0 1 1 1 0\r\n" +
"1 0 1 1 1 0 1 0 1 1 1 1 0 0 0 0 1 1 1 0 0\r\n" +
"1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 1 0 0\r\n" +
"1 1 1 1 1 1 1 0 0 0 1 1 1 1 1 0 1 0 0 1 0";
Assert.AreEqual( expected, matrix.ToString());
}
private static DrawingOutput createDrawingOutput(QRMatrix matrix,
Color?trueColor = null,
Color?falseColor = null,
ImageScale?scale = ImageScale.Scale1x)
{
var black = trueColor ?? Color.Black;
var white = falseColor ?? Color.White;
if (black == white)
{
throw new NFXException(StringConsts.ARGUMENT_ERROR + typeof(QRImageRenderer).Name + ".ToBitmap(trueColor!=falseColor)");
}
int scaleFactor = (int)scale;
int canvasWidth = matrix.Width * scaleFactor;
int canvasHeight = matrix.Height * scaleFactor;
//TODO: Can we not cache brush instances on color in static dictionary? i.e. var blackbrush = BRUSHES[black]; Is brush thread safe for reading only?
using (var blackBrush = new SolidBrush(black))
using (var whiteBrush = new SolidBrush(white))
{
var drawingOutput = new DrawingOutput(canvasWidth, canvasHeight, blackBrush);
for (int yMatrix = 0, yCanvasStart = 0, yCanvasStop = scaleFactor;
yMatrix < matrix.Height;
yMatrix++, yCanvasStart += scaleFactor, yCanvasStop += scaleFactor)
{
for (int xMatrix = 0, xCanvasStart = 0, xCanvasStop = scaleFactor;
xMatrix < matrix.Width;
xMatrix++, xCanvasStart += scaleFactor, xCanvasStop += scaleFactor)
{
if (matrix[xMatrix, yMatrix] == 0)
{
drawingOutput.SetPixelScaled(xMatrix, yMatrix, whiteBrush, scaleFactor);
}
}
}
return(drawingOutput);
}
}
public static void ToGIF(this QRMatrix matrix, System.IO.Stream stream,
Color?trueColor = null, Color?falseColor = null, ImageScale?scale = ImageScale.Scale1x)
{
matrix.ToImage(stream, System.Drawing.Imaging.ImageFormat.Gif, trueColor, falseColor, scale);
}
private static int chooseMaskPattern(BitList bits, QRCorrectionLevel correctionLevel, QRVersion version, QRMatrix matrix)
{
int minPenalty = Int32.MaxValue; // Assume the lowest possible penalty
int bestMaskPattern = -1;
// Calculate all mask paterns to find the pattern with minimum possible penalty
for (int maskPattern = 0; maskPattern < MASK_PATTERNS_QTY; maskPattern++)
{
matrix.FormMatrix(bits, correctionLevel, version, maskPattern);
int penalty = matrix.GetMaskPenalty();
if (penalty < minPenalty)
{
minPenalty = penalty;
bestMaskPattern = maskPattern;
}
}
return(bestMaskPattern);
}
public void VersionInfo()
{
const int WIDTH = 21, HEIGHT = 21;
// Version info bits = 000111 110010 010100
// Actually, version 7 QR Code has 45x45 matrix but we use 21x21 here
// since 45x45 matrix is too big to depict.
QRMatrix matrix = new QRMatrix(WIDTH, HEIGHT);
matrix.AddVersionInfoIfRequired(QRVersion.GetVersionByNumber(7));
string expected =
" 0 0 1 \r\n" +
" 0 1 0 \r\n" +
" 0 1 0 \r\n" +
" 0 1 1 \r\n" +
" 1 1 1 \r\n" +
" 0 0 0 \r\n" +
" \r\n" +
" \r\n" +
" \r\n" +
" \r\n" +
"0 0 0 0 1 0 \r\n" +
"0 1 1 1 1 0 \r\n" +
"1 0 0 1 1 0 \r\n" +
" \r\n" +
" \r\n" +
" \r\n" +
" \r\n" +
" \r\n" +
" \r\n" +
" \r\n" +
" ";
Assert.AreEqual( expected, matrix.ToString());
}
public void TypeInfo()
{
const int WIDTH = 21, HEIGHT = 21;
// Type info bits = 100000011001110.
QRMatrix matrix = new QRMatrix(WIDTH, HEIGHT);
matrix.AddTypeInfo(QRCorrectionLevel.M, 5);
string expected =
" 0 \r\n" +
" 1 \r\n" +
" 1 \r\n" +
" 1 \r\n" +
" 0 \r\n" +
" 0 \r\n" +
" \r\n" +
" 1 \r\n" +
"1 0 0 0 0 0 0 1 1 1 0 0 1 1 1 0\r\n" +
" \r\n" +
" \r\n" +
" \r\n" +
" \r\n" +
" \r\n" +
" 0 \r\n" +
" 0 \r\n" +
" 0 \r\n" +
" 0 \r\n" +
" 0 \r\n" +
" 0 \r\n" +
" 1 ";
Assert.AreEqual( expected, matrix.ToString());
}
public void Pattern_02()
{
const int WIDTH = 25, HEIGHT = 25;
QRMatrix matrix = new QRMatrix(WIDTH, HEIGHT);
matrix.Fill(2);
matrix.AddBasicPatterns(QRVersion.GetVersionByNumber(2));
string expected =
"1 1 1 1 1 1 1 0 0 1 1 1 1 1 1 1\r\n" +
"1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 1\r\n" +
"1 0 1 1 1 0 1 0 0 1 0 1 1 1 0 1\r\n" +
"1 0 1 1 1 0 1 0 0 1 0 1 1 1 0 1\r\n" +
"1 0 1 1 1 0 1 0 0 1 0 1 1 1 0 1\r\n" +
"1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 1\r\n" +
"1 1 1 1 1 1 1 0 1 0 1 0 1 0 1 0 1 0 1 1 1 1 1 1 1\r\n" +
"0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\r\n" +
" 1 \r\n" +
" 0 \r\n" +
" 1 \r\n" +
" 0 \r\n" +
" 1 \r\n" +
" 0 \r\n" +
" 1 \r\n" +
" 0 \r\n" +
" 1 1 1 1 1 1 \r\n" +
"0 0 0 0 0 0 0 0 1 1 0 0 0 1 \r\n" +
"1 1 1 1 1 1 1 0 1 0 1 0 1 \r\n" +
"1 0 0 0 0 0 1 0 1 0 0 0 1 \r\n" +
"1 0 1 1 1 0 1 0 1 1 1 1 1 \r\n" +
"1 0 1 1 1 0 1 0 \r\n" +
"1 0 1 1 1 0 1 0 \r\n" +
"1 0 0 0 0 0 1 0 \r\n" +
"1 1 1 1 1 1 1 0 ";
Assert.AreEqual( expected, matrix.ToString());
}
public void DataBits()
{
const int WIDTH = 21, HEIGHT = 21;
//System.Diagnostics.Debugger.Launch();
// Cells other than basic patterns should be filled with zero.
QRMatrix matrix = new QRMatrix(WIDTH, HEIGHT);
matrix.AddBasicPatterns(QRVersion.GetVersionByNumber(1));
BitList bits = new BitList();
matrix.InsertDataBits(bits, -1);
string expected =
"1 1 1 1 1 1 1 0 0 0 0 0 0 0 1 1 1 1 1 1 1\r\n" +
"1 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 1\r\n" +
"1 0 1 1 1 0 1 0 0 0 0 0 0 0 1 0 1 1 1 0 1\r\n" +
"1 0 1 1 1 0 1 0 0 0 0 0 0 0 1 0 1 1 1 0 1\r\n" +
"1 0 1 1 1 0 1 0 0 0 0 0 0 0 1 0 1 1 1 0 1\r\n" +
"1 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 1\r\n" +
"1 1 1 1 1 1 1 0 1 0 1 0 1 0 1 1 1 1 1 1 1\r\n" +
"0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\r\n" +
"0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0\r\n" +
"0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\r\n" +
"0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0\r\n" +
"0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\r\n" +
"0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0\r\n" +
"0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0\r\n" +
"1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0\r\n" +
"1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0\r\n" +
"1 0 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0\r\n" +
"1 0 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0\r\n" +
"1 0 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0\r\n" +
"1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0\r\n" +
"1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0";
Assert.AreEqual( expected, matrix.ToString());
}
private static int chooseMaskPattern(BitList bits, QRCorrectionLevel correctionLevel, QRVersion version, QRMatrix matrix)
{
int minPenalty = Int32.MaxValue; // Assume the lowest possible penalty
int bestMaskPattern = -1;
// Calculate all mask paterns to find the pattern with minimum possible penalty
for (int maskPattern = 0; maskPattern < MASK_PATTERNS_QTY; maskPattern++)
{
matrix.FormMatrix(bits, correctionLevel, version, maskPattern);
int penalty = matrix.GetMaskPenalty();
if (penalty < minPenalty)
{
minPenalty = penalty;
bestMaskPattern = maskPattern;
}
}
return bestMaskPattern;
}