/// <summary>
/// 生成带Logo二维码
/// </summary>
/// <param name="content">内容</param>
/// <param name="iconPath">logo路径</param>
/// <param name="moduleSize">二维码的大小</param>
/// <returns>输出流</returns>
public static MemoryStream GetQRCode(string content, string iconPath, int moduleSize = 9)
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.M);
QrCode qrCode = qrEncoder.Encode(content);
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(moduleSize, QuietZoneModules.Two), Brushes.Black, Brushes.White);
DrawingSize dSize = render.SizeCalculator.GetSize(qrCode.Matrix.Width);
Bitmap map = new Bitmap(dSize.CodeWidth, dSize.CodeWidth);
Graphics g = Graphics.FromImage(map);
render.Draw(g, qrCode.Matrix);
//追加Logo图片 ,注意控制Logo图片大小和二维码大小的比例
//PS:追加的图片过大超过二维码的容错率会导致信息丢失,无法被识别
System.Drawing.Image img = System.Drawing.Image.FromFile(iconPath);
Point imgPoint = new Point((map.Width - img.Width) / 2, (map.Height - img.Height) / 2);
g.DrawImage(img, imgPoint.X, imgPoint.Y, img.Width, img.Height);
MemoryStream memoryStream = new MemoryStream();
map.Save(memoryStream, ImageFormat.Jpeg);
return(memoryStream);
//生成图片的代码： map.Save(fileName, ImageFormat.Jpeg);//fileName为存放的图片路径
}
Bitmap ComputeQRCode(int slice)
{
var qrEncoder = new QrEncoder(FErrorCorrectionLevel[slice]);
var qrCode = new QrCode();
if (qrEncoder.TryEncode(FText[slice], out qrCode))
{
using (var fore = new SolidBrush(FForeColor[slice].Color))
using (var back = new SolidBrush(FBackColor[slice].Color))
{
var renderer = new GraphicsRenderer(new FixedModuleSize(FPixelSize[slice], FQuietZoneModules[slice]), fore, back);
DrawingSize dSize = renderer.SizeCalculator.GetSize(qrCode.Matrix.Width);
var bmp = new Bitmap(dSize.CodeWidth, dSize.CodeWidth);
using (var g = Graphics.FromImage(bmp))
renderer.Draw(g, qrCode.Matrix);
return(bmp);
}
}
else
{
return(null);
}
}
public static byte[] Encode(string str)
{
var qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
var qrCode = qrEncoder.Encode(str);
var render = new GraphicsRenderer(new FixedModuleSize(3, QuietZoneModules.Zero));
var ms = new MemoryStream();
//render.WriteToStream(qrCode.Matrix, ImageFormat.Png, ms);
DrawingSize dSize = render.SizeCalculator.GetSize(qrCode.Matrix.Width);
Bitmap map = new Bitmap(dSize.CodeWidth, dSize.CodeWidth);
Graphics g = Graphics.FromImage(map);
render.Draw(g, qrCode.Matrix);
int logosize = 20;
using (Image img = Image.FromFile(AppDomain.CurrentDomain.BaseDirectory + @"Images\innerWhite-logo.png"))
{
Point imgPoint = new Point((map.Width - logosize) / 2, (map.Height - logosize) / 2);
g.DrawImage(img, imgPoint.X, imgPoint.Y, logosize, logosize);
map.Save(ms, ImageFormat.Png);
}
return(ms.GetBuffer());
}
public static MemoryStream GenQrCode(string content, int size, Image logo)
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.L);
QrCode qrCode;
qrEncoder.TryEncode(content, out qrCode);
GraphicsRenderer render = new GraphicsRenderer(new FixedCodeSize(size, QuietZoneModules.Two), Brushes.Black, Brushes.Transparent);
MemoryStream ms = new MemoryStream();
Bitmap bitmap = new Bitmap(size, size);
Graphics graphics = Graphics.FromImage(bitmap);
graphics.Clear(System.Drawing.Color.White);
render.Draw(graphics, qrCode.Matrix);
//计算画框的宽度高度以及位置
float rectWidth = logo.Width;
float rectHeight = logo.Height;
float rectX = (size - logo.Width) / 2;
float rectY = (size - logo.Height) / 2;
//加上水印
graphics.DrawImage(logo, rectX, rectY, rectWidth, rectHeight);
bitmap.Save(ms, ImageFormat.Jpeg);
return(ms);
}
//生成中文二维码-支持中文(自定义大小)
//暂时未完善 只定义了背景大小
static void Generate(string url, string filename, string savapath, ImgType type = ImgType.Png, int?width = null, int?high = null)
{
QrEncoder qrEncoder = new QrEncoder();
var qrCode = qrEncoder.Encode(url);
//保存成png文件
//string filename = @"H:\桌面\截图\cn.png";
string suffix = ImgSuffix.Getsuffix(type);; //后缀
filename = $"{savapath}{filename}{suffix}";
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(5, QuietZoneModules.Two), Brushes.Black, Brushes.White);
int w = 500;
int h = 500;
if (width != null)
{
w = (int)width;
}
if (high != null)
{
h = (int)high;
}
Bitmap map = new Bitmap(w, h);
Graphics g = Graphics.FromImage(map);
g.FillRectangle(Brushes.White, 0, 0, w, h);
render.Draw(g, qrCode.Matrix, new Point(20, 20));
map.Save(filename, ImageFormat.Png);
}
public byte[] GetGetQrCode(string content)
{
try
{
using (MemoryStream imgStream = new MemoryStream())
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
QrCode qr;
int ModuleSize = 12; //大小
QuietZoneModules QuietZones = QuietZoneModules.Two; //空白区域
if (qrEncoder.TryEncode(content, out qr))//对内容进行编码，并保存生成的矩阵
{
//Brush b = new SolidBrush(Color.FromArgb(20, Color.Gray));
var render = new GraphicsRenderer(new FixedModuleSize(ModuleSize, QuietZones), Brushes.Black, Brushes.Transparent);
//render.WriteToStream(qr.Matrix, ImageFormat.Png, imgStream);
//logo
DrawingSize dSize = render.SizeCalculator.GetSize(qr.Matrix.Width);
Bitmap map = new Bitmap(dSize.CodeWidth, dSize.CodeWidth);
Graphics g = Graphics.FromImage(map);
render.Draw(g, qr.Matrix);
//logo
//Image img = resizeImage(Image.FromFile(@"D:\code\learn\asp.net\0-part\webapi\WebApiTest\webapi1\Images\logo1.png"), new Size(100, 100));
//img.Save(@"D:\code\learn\asp.net\0-part\webapi\WebApiTest\webapi1\Images\qrlogo.png", ImageFormat.Png);
//Image img = Image.FromFile(@"D:\code\Projects\速星创\server\SXC\SXC.WebApi\Images\qrlogo.png");
Image img = Image.FromFile(Function.GetImagePath("qrlogo.png"));
Point imgPoint = new Point((map.Width - img.Width) / 2, (map.Height - img.Height) / 2);
g.DrawImage(img, imgPoint.X, imgPoint.Y, img.Width, img.Height);
map.Save(imgStream, ImageFormat.Png);
byte[] imgByte = imgStream.GetBuffer();
img.Dispose();
g.Dispose();
map.Dispose();
return(imgByte);
}
else
{
throw new Exception("二维码生成失败");
}
}
}
catch (Exception ex)
{
throw ex;
}
}
protected override void Draw(GameTime gameTime)
{
_totalFrames++;
GameWorld.TotalDrawTimer.Start();
GraphicsRenderer.Draw();
GameWorld.TotalDrawTimer.Measure();
base.Draw(gameTime);
}
/// <summary>
/// 开始绘制（仅覆盖）
/// </summary>
/// <param name="text">内容文字</param>
/// <param name="pictureSize">图片大小</param>
public void Draw(string text, int pictureSize)
{
QrCode qrCode = qrEncoder.Encode(text);
FixedModuleSize moduleSize = new FixedModuleSize(pictureSize, QuietZoneModules.Zero);
GraphicsRenderer render = new GraphicsRenderer(moduleSize, darkBrush, lightBrush);
render.Draw(graphics, qrCode.Matrix);
}
/// <summary>
/// 根据文字内容等信息构建相应QRCode格式二维码图片
/// </summary>
/// <param name="content">二维码内容信息</param>
/// <param name="level">纠错级别</param>
/// <param name="width">图片宽度，如小于0则使用默认尺寸</param>
/// <param name="height">图片高度，如小于0则使用默认尺寸</param>
/// <param name="inline">内嵌图片，如为Null则不做内嵌</param>
/// <returns>二维码图片</returns>
public static Image BuildQRCode(String content, ErrorCorrectionLevel level, int width, int height, Image inline)
{
QrEncoder encoder = new QrEncoder(level);
QrCode code = null;
if (!encoder.TryEncode(content, out code))
{
return(null);
}
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(ModuleSizeInPixels, QuietZoneModules.Two), Brushes.Black, Brushes.White);
DrawingSize cSize = render.SizeCalculator.GetSize(code.Matrix.Width);
Size oSize = new Size(cSize.CodeWidth, cSize.CodeWidth) + new Size(2 * PaddingSizeInPixels, 2 * PaddingSizeInPixels);
Image img = new Bitmap(oSize.Width, oSize.Height);
using (Graphics g = Graphics.FromImage(img))
{
g.CompositingQuality = CompositingQuality.HighQuality;
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
render.Draw(g, code.Matrix);
if (inline != null)
{
int iw = (int)(oSize.Width * InlineSizeInProportion);
int ih = (int)(oSize.Height * InlineSizeInProportion);
int il = (oSize.Width - iw) / 2;
int it = (oSize.Height - ih) / 2;
g.DrawImage(inline, it, il, iw, ih);
Pen pen = new Pen(Color.White, 1);
using (GraphicsPath path = CreateRoundedRectanglePath(new Rectangle(it - 1, il - 1, iw + 1, ih + 1), 4))
{
g.DrawPath(pen, path);
}
}
}
if (width > 0 && height > 0)
{
int w = width > 0 ? width : code.Matrix.Width;
int h = height > 0 ? height : code.Matrix.Height;
Image imgCode = new Bitmap(width, height);
using (Graphics g = Graphics.FromImage(imgCode))
{
g.CompositingQuality = CompositingQuality.HighQuality;
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.DrawImage(img, 0, 0, width, height);
}
img.Dispose();
img = imgCode;
}
return(img);
}
private void ShowCode(Graphics g)
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.L);
QrCode qrCode = qrEncoder.Encode(str);
FixedModuleSize moduleSize = new FixedModuleSize(2, QuietZoneModules.Two);
GraphicsRenderer render = new GraphicsRenderer(moduleSize, Brushes.Black, Brushes.White);
render.Draw(g, qrCode.Matrix);
}
//[Route("api/XXQrCode/{content}")]
//[HttpGet]
public HttpResponseMessage GetQrCodeX(string content)
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
QrCode qr;
int ModuleSize = 12; //大小
QuietZoneModules QuietZones = QuietZoneModules.Two; //空白区域
MemoryStream imgStream = new MemoryStream();
if (qrEncoder.TryEncode(content, out qr))//对内容进行编码，并保存生成的矩阵
{
//Brush b = new SolidBrush(Color.FromArgb(20, Color.Gray));
var render = new GraphicsRenderer(new FixedModuleSize(ModuleSize, QuietZones), Brushes.Black, Brushes.Transparent);
//render.WriteToStream(qr.Matrix, ImageFormat.Png, imgStream);
//logo
DrawingSize dSize = render.SizeCalculator.GetSize(qr.Matrix.Width);
Bitmap map = new Bitmap(dSize.CodeWidth, dSize.CodeWidth);
Graphics g = Graphics.FromImage(map);
render.Draw(g, qr.Matrix);
//logo
//Image img = resizeImage(Image.FromFile(@"D:\code\learn\asp.net\0-part\webapi\WebApiTest\webapi1\Images\logo1.png"), new Size(100, 100));
//img.Save(@"D:\code\learn\asp.net\0-part\webapi\WebApiTest\webapi1\Images\qrlogo.png", ImageFormat.Png);
//Image img = Image.FromFile(@"D:\code\Projects\速星创\server\SXC\SXC.WebApi\Images\qrlogo.png");
Image img = Image.FromFile(@"D:\code\Projects\速星创\server\SXC\SXC.WebApi\Images\qrlogo.png");
Point imgPoint = new Point((map.Width - img.Width) / 2, (map.Height - img.Height) / 2);
g.DrawImage(img, imgPoint.X, imgPoint.Y, img.Width, img.Height);
map.Save(imgStream, ImageFormat.Png);
img.Dispose();
g.Dispose();
var resp = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new ByteArrayContent(imgStream.GetBuffer())
//或者
//Content = new StreamContent(imgStream)
};
resp.Content.Headers.ContentType = new MediaTypeHeaderValue("image/png");
return(resp);
}
else
{
return(new HttpResponseMessage(HttpStatusCode.InternalServerError));
}
}
private void ShowCode(Graphics g)
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.L);
QrCode qrCode = qrEncoder.Encode(str);
FixedModuleSize moduleSize = new FixedModuleSize(4, QuietZoneModules.Two);
GraphicsRenderer render = new GraphicsRenderer(moduleSize, Brushes.Black, Brushes.White);
Point mP = new Point(627, 595);//设置二维码左上角的位置
render.Draw(g, qrCode.Matrix, mP);
}
public Image getqrcode(string content)
{
var encoder = new QrEncoder(ErrorCorrectionLevel.M);
QrCode qrCode = encoder.Encode(content);
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(12, QuietZoneModules.Two), Brushes.Black, Brushes.White);//如需改变二维码大小，调整12即可
DrawingSize dSize = render.SizeCalculator.GetSize(qrCode.Matrix.Width);
Bitmap map = new Bitmap(dSize.CodeWidth, dSize.CodeWidth);
Graphics g = Graphics.FromImage(map);
render.Draw(g, qrCode.Matrix);
return(map);
}
//生成中文二维码-支持中文
public static void Generate3()
{
QrEncoder qrEncoder = new QrEncoder();
QrCode qrCode = qrEncoder.Encode("我是小天马");
//保存成png文件
string filename = @"D:\09VS\08temp\cn.png";
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(5, QuietZoneModules.Two), Brushes.Black, Brushes.White);
Bitmap map = new Bitmap(500, 500);
Graphics g = Graphics.FromImage(map);
g.FillRectangle(Brushes.Red, 0, 0, 500, 500);
render.Draw(g, qrCode.Matrix, new Point(20, 20));
map.Save(filename, ImageFormat.Png);
}
//这个方法保存的图像会太大，不好
private void button3_Click(object sender, EventArgs e)
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.M);
QrCode qrCode = qrEncoder.Encode("我是abc小def天马\n@、");
//保存成png文件
string filename = @"QRCodeChinese.png";
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(5, QuietZoneModules.Two), Brushes.Black, Brushes.White);
Bitmap map = new Bitmap(500, 500);
Graphics g = Graphics.FromImage(map);
g.FillRectangle(Brushes.Red, 0, 0, 500, 500);
render.Draw(g, qrCode.Matrix, new Point(20, 20));
map.Save(filename, ImageFormat.Png);
}
public void EncodeToPng(string str, string picpath, QRCodeSaveSize saveSize)
{
QrCode qrCode = _qrEncoder.Encode(str);
//保存成png文件
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(Convert.ToInt32(saveSize), QuietZoneModules.Two), Brushes.Black, Brushes.White);
using (FileStream stream = new FileStream(picpath, FileMode.OpenOrCreate)) //OpenOrCreate打开新文件默认就是truncate的了，如果再显式指定Truncate反而会报错当文件不存在的时候
{
render.WriteToStream(qrCode.Matrix, ImageFormat.Png, stream);
}
Bitmap bitmap = new Bitmap(165, 165);
Graphics g = Graphics.FromImage(bitmap);
render.Draw(g, qrCode.Matrix);
bitmap.Save("a.bmp");
}
/// <summary>
/// 生成二维码的方法
/// </summary>
/// <param name="str">二维码包含的内容</param>
/// <param name="moduleSize">二维码大小</param>
/// <param name="no">编号</param>
private void createQrCode(string content, int no, int moduleSize = 9)
{
//QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
//QrCode qrCode = new QrCode();
//qrEncoder.TryEncode(str, out qrCode);
string filename = DateTime.Now.ToString("d");
filename = filename.Replace("/", "");
filename = filename.Replace(":", "");
filename = filename.Replace("-", "");
filename = filename.Replace(".", "");
filename = filename.Replace(" ", "");
string filepath = System.AppDomain.CurrentDomain.BaseDirectory + filename;
if (!Directory.Exists(filepath))
{
Directory.CreateDirectory(filepath);
}
string fileName = filepath + "\\" + no + ".png";
//Renderer renderer = new Renderer(5, Brushes.Black, Brushes.White);
//renderer.CreateImageFile(qrCode.Matrix, @filename, ImageFormat.Png);
//ErrorCorrectionLevel 误差校正水平
//QuietZoneModules 空白区域
var encoder = new QrEncoder(ErrorCorrectionLevel.M);
QrCode qrCode = encoder.Encode(content);
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(moduleSize, QuietZoneModules.Two), Brushes.Black, Brushes.White);
//MemoryStream memoryStream = new MemoryStream();
//render.WriteToStream(qrCode.Matrix, ImageFormat.Jpeg, memoryStream);
//return memoryStream;
//生成图片的代码
DrawingSize dSize = render.SizeCalculator.GetSize(qrCode.Matrix.Width);
Bitmap map = new Bitmap(dSize.CodeWidth, dSize.CodeWidth);
Graphics g = Graphics.FromImage(map);
render.Draw(g, qrCode.Matrix);
map.Save(fileName, ImageFormat.Png);//fileName为存放的图片路径
}
//生成QRCode的函数
public void DrawQRCode(string qrText)
{
//pictureBox1重新生成
pictureBox1.Refresh();
//新建QrEncoder类的对象
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.M);
//新建QrCode类的对象，传入形参
QrCode qrCode = qrEncoder.Encode(qrText);
//新建GraphicsRenderer类的对象
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(5, QuietZoneModules.Two), Brushes.Black, Brushes.White);
//确定绘图初始点
Point padding = new Point(0, 0);
//实例化Graphics类
Graphics graphics = pictureBox1.CreateGraphics();
//将graphics对象导入pictureBox1
render.Draw(graphics, qrCode.Matrix, padding);
}
public static MemoryStream GenQrCode(string content, int size)
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.L);
QrCode qrCode;
qrEncoder.TryEncode(content, out qrCode);
GraphicsRenderer render = new GraphicsRenderer(new FixedCodeSize(size, QuietZoneModules.Zero), Brushes.Black, Brushes.Transparent);
MemoryStream ms = new MemoryStream();
Bitmap bitmap = new Bitmap(size, size);
Graphics graphics = Graphics.FromImage(bitmap);
graphics.Clear(System.Drawing.Color.White);
render.Draw(graphics, qrCode.Matrix);
bitmap.Save(ms, ImageFormat.Jpeg);
return(ms);
}
private void logoEncode(string filename, string source, string logoPath)
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.M);
QrCode qrCode = qrEncoder.Encode(source);
//保存成png文件
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(5, QuietZoneModules.Two), Brushes.Black, Brushes.White);
DrawingSize dSize = render.SizeCalculator.GetSize(qrCode.Matrix.Width);
Bitmap map = new Bitmap(dSize.CodeWidth, dSize.CodeWidth);
Graphics g = Graphics.FromImage(map);
render.Draw(g, qrCode.Matrix);
//追加Logo图片 ,注意控制Logo图片大小和二维码大小的比例
Image img = Image.FromFile(logoPath);
Point imgPoint = new Point((map.Width - img.Width) / 2, (map.Height - img.Height) / 2);
g.DrawImage(img, imgPoint.X, imgPoint.Y, img.Width, img.Height);
map.Save(filename, ImageFormat.Png);
}
/// <summary>
/// 生成二维码
/// </summary>
/// <param name="Content">内容文本</param>
/// <param name="size">图片尺寸（像素），0表示不设置</param>
/// <returns></returns>
public string CreateQRCode(string Content, int Size)
{
Graphics g = null;
Bitmap img = null;
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.M);
QrCode qrCode = qrEncoder.Encode(Content);
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(Size, QuietZoneModules.Four), Brushes.Black, Brushes.White);
Point padding = new Point(10, 10);
DrawingSize dSize = render.SizeCalculator.GetSize(qrCode.Matrix.Width);
img = new Bitmap(dSize.CodeWidth + padding.X, dSize.CodeWidth + padding.Y);
//创建GDI绘图图面对象
g = Graphics.FromImage(img);
render.Draw(g, qrCode.Matrix, padding);
//创建文件夹
Common.CreateDir(filePath);
//文件名称
string guid = Guid.NewGuid().ToString().Replace("-", "") + ".png";
RelativePath += guid;
string QRCodePath = filePath + "/" + guid;
try
{
using (FileStream stream = new FileStream(QRCodePath, FileMode.Create))
{
render.WriteToStream(qrCode.Matrix, ImageFormat.Png, stream);
}
}
catch (Exception e)
{
string ServiceName = "SaveQRCode";
string LogBody = "---执行服务出现错误，异常信息:" + e.Message + ",时间:" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "---\r\n";
Common.WriteLogFile(Common.getErrorLogFile(ServiceName), LogBody);
}
finally
{
//释放占用资源
img.Dispose();
g.Dispose();
}
return(RelativePath);
}
/// <summary>
/// Gets the QR code containing the data of the network component.
/// </summary>
/// <returns>The QR code image.</returns>
public Bitmap GetQRCode( )
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
byte[] ipBytes = IP.GetAddressBytes( );
QrCode qrCode = qrEncoder.Encode($"{string.Join( ",", ipBytes )},{Port}");
const int moduleSizeInPixels = 25;
GraphicsRenderer renderer = new GraphicsRenderer(new FixedModuleSize(moduleSizeInPixels, QuietZoneModules.Two), Brushes.Black, Brushes.White);
DrawingSize dSize = renderer.SizeCalculator.GetSize(qrCode.Matrix.Width);
Bitmap bmp = new Bitmap(dSize.CodeWidth, dSize.CodeWidth);
using (Graphics graphics = Graphics.FromImage(bmp))
renderer.Draw(graphics, qrCode.Matrix);
return(bmp);
}
/// <summary>
/// 二维码生成
/// </summary>
/// <param name="content"></param>
/// <param name="title"></param>
/// <returns></returns>
private System.Drawing.Image MakeTryQRCode(string content, string title)
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.M);
QrCode qrCode = qrEncoder.Encode(content);
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(15, QuietZoneModules.Two), Brushes.Black, Brushes.White);
DrawingSize dSize = render.SizeCalculator.GetSize(qrCode.Matrix.Width);
Bitmap bitmap = new Bitmap(dSize.CodeWidth + 10, dSize.CodeWidth + 114);
using (Graphics g = Graphics.FromImage(bitmap))
{
//背景色：白
g.FillRectangle(Brushes.White, 0, 0, bitmap.Width, bitmap.Height);
//描画二维码
render.Draw(g, qrCode.Matrix, new Point(10, 10));
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
//描画中间的log
string logFile = Path.Combine(Application.StartupPath, "logo.png");
if (File.Exists(logFile))
{
Size size = new Size(160, 160);
Point point = new Point(bitmap.Width / 2 - size.Width / 2, bitmap.Width / 2 - size.Height / 2);
//描画背景
g.FillEllipse(Brushes.White, point.X, point.Y, size.Width, size.Height);
//描画logo
System.Drawing.Image img = Bitmap.FromFile(logFile);
TextureBrush texture = new TextureBrush(img);
texture.TranslateTransform(-75, -80);
texture.WrapMode = System.Drawing.Drawing2D.WrapMode.Tile;
g.FillEllipse(texture, point.X + 8, point.Y + 8, size.Width - 16, size.Height - 16);
}
//描画下面的描述性文字
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Center;
sf.LineAlignment = StringAlignment.Near;
sf.FormatFlags = StringFormatFlags.NoWrap;
g.DrawString(title, new Font("Simhei", 32f, FontStyle.Bold), Brushes.Black, new RectangleF(30, bitmap.Height - 100, bitmap.Width - 60, 100), sf);
}
return(bitmap);
}
//生成带Logo的二维码
static void Generate5()
{
QrEncoder qrEncoder = new QrEncoder();
var qrCode = qrEncoder.Encode("我是小天马");
//保存成png文件
string filename = @"H:\桌面\截图\logo.png";
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(5, QuietZoneModules.Two), Brushes.Black, Brushes.White);
DrawingSize dSize = render.SizeCalculator.GetSize(qrCode.Matrix.Width);
Bitmap map = new Bitmap(dSize.CodeWidth, dSize.CodeWidth);
Graphics g = Graphics.FromImage(map);
render.Draw(g, qrCode.Matrix);
//追加Logo图片 ,注意控制Logo图片大小和二维码大小的比例
Image img = Image.FromFile(@"F:\JavaScript_Solution\QrCode\QrCode\Images\101.jpg");
Point imgPoint = new Point((map.Width - img.Width) / 2, (map.Height - img.Height) / 2);
g.DrawImage(img, imgPoint.X, imgPoint.Y, img.Width, img.Height);
map.Save(filename, ImageFormat.Png);
}
/// <summary>
/// 生成带logo的二维码
/// </summary>
public static void GenerateLogoQr()
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.M);
QrCode qrCode = qrEncoder.Encode("http://www.yunfangdata.com");
//保存成png文件
string filename = System.Environment.CurrentDirectory + "\\二维码.png"; //@"H:\桌面\截图\logo.png";
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(10, QuietZoneModules.Two), Brushes.Black, Brushes.White);
DrawingSize dSize = render.SizeCalculator.GetSize(qrCode.Matrix.Width);
Bitmap map = new Bitmap(dSize.CodeWidth, dSize.CodeWidth);
Graphics g = Graphics.FromImage(map);
render.Draw(g, qrCode.Matrix);
//追加Logo图片 ,注意控制Logo图片大小和二维码大小的比例
Image img = Image.FromFile(System.Environment.CurrentDirectory + "\\img\\logo2.png");
Point imgPoint = new Point((map.Width - img.Width) / 2, (map.Height - img.Height) / 2);
g.DrawImage(img, imgPoint.X, imgPoint.Y, img.Width, img.Height);
map.Save(filename, ImageFormat.Png);
}
public static void RunSample2()
{
const string helloWorld = "Hello World!";
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
QrCode qrCode = qrEncoder.Encode(helloWorld);
const int moduleSizeInPixels = 5;
GraphicsRenderer renderer = new GraphicsRenderer(new FixedModuleSize(moduleSizeInPixels, QuietZoneModules.Two), Brushes.Black, Brushes.White);
Panel panel = new Panel();
Point padding = new Point(10, 16);
DrawingSize dSize = renderer.SizeCalculator.GetSize(qrCode.Matrix.Width);
panel.AutoSize = false;
panel.Size = new Size(dSize.CodeWidth, dSize.CodeWidth) + new Size(2 * padding.X, 2 * padding.Y);
using (Graphics graphics = panel.CreateGraphics())
{
renderer.Draw(graphics, qrCode.Matrix, padding);
}
}
public static Bitmap GenerateQRCode(string text)
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.M);
QrCode qrCode = qrEncoder.Encode(text);
//ModuleSize 设置图片大小
//QuietZoneModules 设置周边padding
/*
* 5----150*150 padding:5
* 10----300*300 padding:10
*/
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(10, QuietZoneModules.Two), Brushes.Black, Brushes.White);
Point padding = new Point(10, 10);
DrawingSize dSize = render.SizeCalculator.GetSize(qrCode.Matrix.Width);
Bitmap map = new Bitmap(dSize.CodeWidth + padding.X, dSize.CodeWidth + padding.Y);
Graphics g = Graphics.FromImage(map);
render.Draw(g, qrCode.Matrix, padding);
return(map);
}
private Bitmap GetQRCodeBitmap(string address)
{
var qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
var qrCode = new QrCode();
var isSuccess = qrEncoder.TryEncode(address, out qrCode);
if (!isSuccess)
{
Commons.ShowInfoBox(this, "生成二维码失败");
return(null);
}
var render = new GraphicsRenderer(new FixedModuleSize(5, QuietZoneModules.Zero), Brushes.Black, Brushes.White);
var map = new Bitmap(qrCode.Matrix.Width * 5, qrCode.Matrix.Height * 5);
var g = Graphics.FromImage(map);
g.FillRectangle(Brushes.White, 0, 0, qrCode.Matrix.Width * 5, qrCode.Matrix.Height * 5);
render.Draw(g, qrCode.Matrix);
pictureBox1.Location = new Point(panel1.Width / 2 + panel1.Location.X / 2 - map.Width / 2, panel1.Height / 2 - map.Height / 2);
if (tbLogo.Text.Trim() != "")
{
Image logo = null;
try {
logo = Image.FromFile(tbLogo.Text.Trim());
if (logo.Width > 100 || logo.Height > 100)
{
throw (new System.OutOfMemoryException());
}
var logoPoint = new Point((map.Width - logo.Width) / 2, (map.Height - logo.Height) / 2);
g.DrawImage(logo, logoPoint.X, logoPoint.Y, logo.Width, logo.Height);
} catch {
Commons.ShowInfoBox(this, "无法使用此Logo");
}
}
return(map);
}
//生成带Logo的二维码
public static void Generate5()
{
QrEncoder qrEncoder = new QrEncoder();
QrCode qrCode = qrEncoder.Encode("我是小天马");
//保存成png文件
string filename = @"D:\09VS\08temp\logo.png";
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(35, QuietZoneModules.Four), Brushes.Black, Brushes.White);
DrawingSize dSize = render.SizeCalculator.GetSize(qrCode.Matrix.Width);
Bitmap map = new Bitmap(dSize.CodeWidth, dSize.CodeWidth);
Graphics g = Graphics.FromImage(map);
render.Draw(g, qrCode.Matrix);
//追加Logo图片 ,注意控制Logo图片大小和二维码大小的比例
Image img = Image.FromFile(@"D:\09VS\08temp\Images\101.jpg");
System.Diagnostics.Debug.Print(map.Width + "-- " + map.Height);
System.Diagnostics.Debug.Print(img.Width + "//" + img.Height);
Point imgPoint = new Point((map.Width - img.Width) / 2, (map.Height - img.Height) / 2);
g.DrawImage(img, imgPoint.X, imgPoint.Y, img.Width, img.Height);
map.Save(filename, ImageFormat.Png);
}
private void PaintQR(string str)
{
var graphics = this.CreateGraphics();
graphics.Clear(Color.White);
if (string.IsNullOrEmpty(str))
{
graphics.DrawString("Clipboard text is empty.", SystemFonts.DefaultFont, Brushes.Black, graphics.VisibleClipBounds);
return;
}
try
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.L);
QrCode qrCode = qrEncoder.Encode(str);
var moduleSize = new FixedCodeSize(Math.Min((int)graphics.VisibleClipBounds.Width, (int)graphics.VisibleClipBounds.Height), QuietZoneModules.Two);
GraphicsRenderer render = new GraphicsRenderer(moduleSize, Brushes.Black, Brushes.White);
render.Draw(graphics, qrCode.Matrix);
}
catch (Exception e)
{
graphics.DrawString(e.Message, SystemFonts.DefaultFont, Brushes.Black, graphics.VisibleClipBounds);
}
}
