using Gma.QrCodeNet.Encoding;
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using Gma.QrCodeNet.Encoding.Windows.Render;
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using System;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Drawing.Imaging;
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using System.IO;
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using ThoughtWorks.QRCode.Codec;
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using ThoughtWorks.QRCode.Codec.Util;
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namespace WIP_Print
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{
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public class QRCodeUtil
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{
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/// <summary>
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/// 生成二维码图片
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/// </summary>
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/// <param name="codeNumber">要生成二维码的字符串</param>
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/// <param name="size">大小尺寸(文件大小)</param>
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/// <returns>二维码图片</returns>
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public static Bitmap CreateImgCode(string codeNumber, int size)
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{
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//创建二维码生成类
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QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
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//设置编码模式
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qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
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//设置编码测量度
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qrCodeEncoder.QRCodeScale = size;
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//设置编码版本
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qrCodeEncoder.QRCodeVersion = 0;
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//设置编码错误纠正
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qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
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//生成二维码图片
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Bitmap image = null;
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if (QRCodeUtility.IsUniCode(codeNumber))
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{
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image = qrCodeEncoder.Encode(codeNumber, System.Text.Encoding.UTF8);
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}
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else
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{
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image = qrCodeEncoder.Encode(codeNumber, System.Text.Encoding.ASCII);
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}
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return image;
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}
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/// <summary>
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/// 生成二维码
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/// </summary>
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/// <param name="content">内容</param>
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/// <param name="moduleSize">二维码的大小</param>
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/// <returns>输出流</returns>
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public static MemoryStream GetQRCode(string content, int moduleSize = 9)
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{
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//ErrorCorrectionLevel 误差校正水平
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//QuietZoneModules 空白区域
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var encoder = new QrEncoder(ErrorCorrectionLevel.M);
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QrCode qrCode = encoder.Encode(content);
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GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(moduleSize, QuietZoneModules.Two), Brushes.Black, Brushes.White);
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MemoryStream memoryStream = new MemoryStream();
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render.WriteToStream(qrCode.Matrix, ImageFormat.Jpeg, memoryStream);
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return memoryStream;
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//生成图片的代码
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//DrawingSize dSize = render.SizeCalculator.GetSize(qrCode.Matrix.Width);
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//Bitmap map = new Bitmap(dSize.CodeWidth, dSize.CodeWidth);
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//Graphics g = Graphics.FromImage(map);
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//render.Draw(g, qrCode.Matrix);
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//map.Save(fileName, ImageFormat.Jpeg);//fileName为存放的图片路径
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}
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/// <summary>
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/// 生成带Logo二维码
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/// </summary>
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/// <param name="content">内容</param>
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/// <param name="iconPath">logo路径</param>
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/// <param name="moduleSize">二维码的大小</param>
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/// <returns>输出流</returns>
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public static MemoryStream GetQRCode(string content, string iconPath, int moduleSize = 9)
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{
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QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.M);
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QrCode qrCode = qrEncoder.Encode(content);
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GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(moduleSize, QuietZoneModules.Two), Brushes.Black, Brushes.White);
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DrawingSize dSize = render.SizeCalculator.GetSize(qrCode.Matrix.Width);
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Bitmap map = new Bitmap(dSize.CodeWidth, dSize.CodeWidth);
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Graphics g = Graphics.FromImage(map);
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render.Draw(g, qrCode.Matrix);
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//追加Logo图片 ,注意控制Logo图片大小和二维码大小的比例
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//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
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System.Drawing.Image img = System.Drawing.Image.FromFile(iconPath);
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Point imgPoint = new Point((map.Width - img.Width) / 2, (map.Height - img.Height) / 2);
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g.DrawImage(img, imgPoint.X, imgPoint.Y, img.Width, img.Height);
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MemoryStream memoryStream = new MemoryStream();
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map.Save(memoryStream, ImageFormat.Jpeg);
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return memoryStream;
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//生成图片的代码： map.Save(fileName, ImageFormat.Jpeg);//fileName为存放的图片路径
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}
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/// <summary>
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/// 保存图片
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/// </summary>
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/// <param name="img">图片</param>
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public static bool SaveImg(System.Drawing.Image img, string savePathAndName, Size size, ImageFormat imgSet)
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{
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//文件路径
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string fullPath = Path.GetDirectoryName(savePathAndName);
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if (!Directory.Exists(fullPath))
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{
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Directory.CreateDirectory(fullPath);
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}
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if (File.Exists(savePathAndName))
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{
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File.Delete(savePathAndName);
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//LogHelper.Info(typeof(QRCode), "【文件重复】覆盖 - "+ savePathAndName.Substring(savePathAndName.Length-13, 13));
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}
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Bitmap newImg = new Bitmap(img, size.Width, size.Height);//图片保存的大小尺寸
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newImg.SetResolution(150,150);
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newImg.Save(savePathAndName, imgSet);
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newImg.Dispose();
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GC.Collect();
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return true;
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}
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private Font _font = new Font("微软雅黑",15f);
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/// <summary>
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/// 调用此函数后使此两种图片合并，类似相册，有个
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/// 背景图，中间贴自己的目标图片
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/// </summary>
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/// <param name="sourceImg">粘贴的源图片</param>
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/// <param name="destImg">粘贴的目标图片</param>
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public static Metafile CombinImage(Size imgSize, string destImg, string fileName,string content="")
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{
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Bitmap bmp = new Bitmap(imgSize.Width, imgSize.Height);
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Graphics gs = Graphics.FromImage(bmp);
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Metafile mf = new Metafile(fileName, gs.GetHdc());
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Graphics g = Graphics.FromImage(mf);
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//g.SmoothingMode = SmoothingMode.HighQuality;
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//g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
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//g.CompositingQuality = CompositingQuality.HighQuality;
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//绘制边框
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g.DrawRectangle(new Pen(System.Drawing.Color.FromArgb(54,170,109),12),0,0, imgSize.Width, imgSize.Height);
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//绘制二维码
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System.Drawing.Image img = System.Drawing.Image.FromFile(destImg);
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g.DrawImage(img, Convert.ToInt32(imgSize.Width * 400 / 612), (imgSize.Height - img.Height) / 2, img.Width, img.Height);
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img.Dispose();
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//绘制logo
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//Metafile logo= new Metafile(Application.StartupPath + "\\BackImage\\logo"+ imgSize.Width + imgSize.Height + ".wmf");
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Metafile logo = new Metafile(System.Windows.Forms.Application.StartupPath + "\\BackImage\\logo1.wmf");
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g.DrawImageUnscaled(logo, Convert.ToInt32(imgSize.Width * 32 / 612), Convert.ToInt32(imgSize.Height * 35 / 236));
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//绘制内容
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g.DrawString(content, new Font("微软雅黑", 53f), new SolidBrush(System.Drawing.Color.Black), new Point(Convert.ToInt32(imgSize.Width * 62 / 612), Convert.ToInt32(imgSize.Height * 128 / 236)));
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g.Save();
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g.Dispose();
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mf.Dispose();
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GC.Collect();
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return null;
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}
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/// <summary>
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/// 调用此函数后使此两种图片合并，类似相册，有个
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/// 背景图，中间贴自己的目标图片
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/// </summary>
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/// <param name="sourceImg">粘贴的源图片</param>
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/// <param name="destImg">粘贴的目标图片</param>
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public static System.Drawing.Image CombinImage(System.Drawing.Image imgBack,System.Drawing.Image destImg)
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{
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//System.Drawing.Image img = destImg; //照片图片
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if (destImg.Height != 780 || destImg.Width != 780)
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{
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destImg = KiResizeImage(destImg, 780, 780, 0);
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}
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Graphics g = Graphics.FromImage(imgBack);
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g.DrawImage(imgBack, 0, 0, imgBack.Width, imgBack.Height); //g.DrawImage(imgBack, 0, 0, 相框宽, 相框高);
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//g.FillRectangle(System.Drawing.Brushes.White, imgBack.Width / 2 - img.Width / 2 - 1, imgBack.Width / 2 - img.Width / 2 - 1,1,1);//相片四周刷一层黑色边框
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//g.DrawImage(img, 照片与相框的左边距, 照片与相框的上边距, 照片宽, 照片高);
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g.DrawImage(imgBack, imgBack.Width / 2 - destImg.Width / 2, imgBack.Width / 2 - destImg.Width / 2, destImg.Width, destImg.Height);
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GC.Collect();
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return imgBack;
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}
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/// <summary>
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/// Resize图片
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/// </summary>
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/// <param name="bmp">原始Bitmap</param>
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/// <param name="newW">新的宽度</param>
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/// <param name="newH">新的高度</param>
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/// <param name="Mode">保留着，暂时未用</param>
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/// <returns>处理以后的图片</returns>
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public static System.Drawing.Image KiResizeImage(System.Drawing.Image bmp, int newW, int newH, int Mode)
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{
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try
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{
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System.Drawing.Image b = new Bitmap(newW, newH);
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Graphics g = Graphics.FromImage(b);
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// 插值算法的质量
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g.InterpolationMode = InterpolationMode.HighQualityBicubic;
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g.DrawImage(bmp, new Rectangle(0, 0, newW, newH), new Rectangle(0, 0, bmp.Width, bmp.Height), GraphicsUnit.Pixel);
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g.Dispose();
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return b;
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}
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catch
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{
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return null;
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}
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}
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}
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}
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