protected void GenerateQRCode()
{
if (_borderQRCode == null || _qrCodeRect == null)
{
return;
}
if (string.IsNullOrWhiteSpace(ItemURL))
{
_borderQRCode.Visibility = Visibility.Collapsed;
return;
}
try
{
QrEncoder encoder = new QrEncoder(ErrorCorrectionLevel.M);
QrCode qrCode;
if (encoder.TryEncode(ItemURL, out qrCode))
{
DrawingBrushRenderer dRenderer = new DrawingBrushRenderer(new FixedModuleSize(2, QuietZoneModules.Two), System.Windows.Media.Brushes.Black, System.Windows.Media.Brushes.White);
System.Windows.Media.DrawingBrush dBrush = dRenderer.DrawBrush(qrCode.Matrix);
_qrCodeRect.Fill = dBrush;
_borderQRCode.Visibility = System.Windows.Visibility.Visible;
}
else
{
_borderQRCode.Visibility = System.Windows.Visibility.Collapsed;
}
}
catch
{
_borderQRCode.Visibility = System.Windows.Visibility.Collapsed;
}
}
void DisplayQRCode(string imageUrl)
{
imageUrl = Common.UrlHelper.GetCorrectedStreamURL(imageUrl);
if (string.IsNullOrWhiteSpace(imageUrl))
{
brdrQRCode.Visibility = System.Windows.Visibility.Collapsed;
return;
}
try
{
QrEncoder encoder = new QrEncoder(ErrorCorrectionLevel.M);
QrCode qrCode;
if (encoder.TryEncode(imageUrl, out qrCode))
{
DrawingBrushRenderer dRenderer = new DrawingBrushRenderer(new FixedModuleSize(2, QuietZoneModules.Two), Brushes.Black, Brushes.White);
DrawingBrush dBrush = dRenderer.DrawBrush(qrCode.Matrix);
rectQRCode.Fill = dBrush;
brdrQRCode.Visibility = System.Windows.Visibility.Visible;
}
else
{
brdrQRCode.Visibility = System.Windows.Visibility.Collapsed;
}
}
catch
{
brdrQRCode.Visibility = System.Windows.Visibility.Collapsed;
}
}
void test1(PrintPageEventArgs e)
{
int x = Convert.ToInt32(e.PageSettings.PrintableArea.X);
int y = Convert.ToInt32(e.PageSettings.PrintableArea.Y);
int h = Convert.ToInt32(e.PageSettings.PrintableArea.Height);
int w = Convert.ToInt32(e.PageSettings.PrintableArea.Width);
Point dpi = new Point(e.PageSettings.PrinterResolution.X, e.PageSettings.PrinterResolution.Y);
//e.Graphics.DrawString("This is a test", new Font(FontFamily.GenericSansSerif, 12), Brushes.Blue, new PointF(0, 0));
QrEncoder qrEncoder = new QrEncoder(Gma.QrCodeNet.Encoding.ErrorCorrectionLevel.L);
ISizeCalculation iSizeCal = new FixedModuleSize(1, QuietZoneModules.Two);
//ISizeCalculation iSizeCal = new FixedCodeSize(25, QuietZoneModules.Two);
GraphicsRenderer gRenderer = new GraphicsRenderer(iSizeCal,
System.Drawing.Brushes.Black, System.Drawing.Brushes.White);
QrCode qrCode1 = qrEncoder.Encode("Victor says hi");
QrCode qrCode2 = qrEncoder.Encode("Victor says goodbye");
QrCode qrCode3 = qrEncoder.Encode("0123456789");
QrCode qrCode4 = qrEncoder.Encode("ABCDEF1234");
DrawingBrushRenderer dRenderer = new DrawingBrushRenderer(iSizeCal,
System.Windows.Media.Brushes.Black, System.Windows.Media.Brushes.White);
DrawingBrush dBrush = dRenderer.DrawBrush(qrCode1.Matrix);
int side = w;
if (w > h)
{
side = h;
}
gRenderer.Draw(e.Graphics, qrCode1.Matrix);
var size = iSizeCal.GetSize(qrCode1.Matrix.Width);
Point offset = new Point(size.CodeWidth + 10, 0);
gRenderer.Draw(e.Graphics, qrCode2.Matrix, offset);
size = iSizeCal.GetSize(qrCode2.Matrix.Width);
offset.X += size.CodeWidth + 10;
gRenderer.Draw(e.Graphics, qrCode3.Matrix, offset);
size = iSizeCal.GetSize(qrCode3.Matrix.Width);
offset.X += size.CodeWidth + 10;
gRenderer.Draw(e.Graphics, qrCode4.Matrix, offset);
using (FileStream stream = new FileStream("test.png", FileMode.Create))
{
gRenderer.WriteToStream(qrCode1.Matrix, ImageFormat.Png, stream);
gRenderer.WriteToStream(qrCode2.Matrix, ImageFormat.Png, stream);
}
}