基线 SVN r240

SVN-Revision: r240
2025-02-06 06:46:06 +00:00
commit ab56a9bcf7
5317 changed files with 902274 additions and 0 deletions
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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using System.Drawing.Imaging;
+using System.IO;
+using System.Windows.Forms;
+
+namespace LSFileClient
+{
+	public static class ImageUtil
+	{
+
+		public enum ImgDeep
+		{
+			D8,
+			D32
+		}
+		public static void Format(string path, string savePath, ImageFormat format, ImgDeep deep = ImgDeep.D32, int nwidth = 0, int nheight = 0)
+		{
+			//string a = path + "\r\n" + savePath + "\r\n" + format + "\r\n" + deep + "\r\n" + nwidth + "\r\n" + nheight;
+			//MessageBox.Show(a);
+
+			Bitmap srcImage = null;
+			if (nwidth > 0 && nheight > 0)
+			{
+				srcImage = ReSize(path, nwidth, nheight);
+			}
+			else
+			{
+				srcImage = new Bitmap(path);
+			}
+
+			if (deep == ImgDeep.D8)
+			{
+				//  Bitmap b8Img = srcImage.Clone(new Rectangle(0, 0, srcImage.Width, srcImage.Height), PixelFormat.Format8bppIndexed);
+				string temp = savePath + ".temp";
+				srcImage.Format(temp, ImageFormat.Gif);//gif为8位图
+				Format(temp, savePath, format);
+				File.Delete(temp);
+				//   b8Img.Format(savePath,format);
+				return;
+			}
+
+			srcImage.Format(savePath, format);
+		}
+
+		public static Bitmap ReSize(string path, int nwidth, int nheight)
+		{
+			System.Drawing.Image iSource = System.Drawing.Image.FromFile(path);
+			int sW = 0, sH = 0;
+			Size temSize = new Size(iSource.Width, iSource.Height);
+			if (temSize.Width > nheight || temSize.Width > nwidth)
+			{
+				if ((temSize.Width * nheight) > (temSize.Height * nwidth))
+				{
+					sW = nwidth;
+					sH = (nwidth * temSize.Height) / temSize.Width;
+				}
+				else
+				{
+					sH = nheight;
+					sW = (temSize.Width * nheight) / temSize.Height;
+				}
+			}
+			else
+			{
+				sW = temSize.Width;
+				sH = temSize.Height;
+			}
+
+			Bitmap ob = new Bitmap(sW, sH);
+			Graphics g = Graphics.FromImage(ob);
+			// g.Clear(Color.WhiteSmoke);
+			g.CompositingQuality = CompositingQuality.HighQuality;
+			g.SmoothingMode = SmoothingMode.HighQuality;
+			g.InterpolationMode = InterpolationMode.HighQualityBicubic;
+			// g.InterpolationMode = InterpolationMode.Default;
+			g.DrawImage(iSource, new Rectangle(0, 0, sW, sH), 0, 0, iSource.Width, iSource.Height, GraphicsUnit.Pixel);
+			g.Dispose();
+
+			return ob;
+		}
+
+		public static void Format(this Bitmap bmp, string filename, ImageFormat format)
+		{
+			EncoderParameters encoderParameters = new EncoderParameters(1);
+			encoderParameters.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 100L);
+			bmp.Save(filename, GetEncoder(format), encoderParameters);
+			bmp.Dispose();
+			encoderParameters.Param[0].Dispose();
+			encoderParameters.Dispose();
+		}
+
+		public static void Format(this Bitmap bmp, Stream stream, ImageFormat format)
+		{
+			EncoderParameters encoderParameters = new EncoderParameters(1);
+			encoderParameters.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 100L);
+			bmp.Save(stream, GetEncoder(format), encoderParameters);
+			bmp.Dispose();
+			encoderParameters.Param[0].Dispose();
+			encoderParameters.Dispose();
+		}
+
+		public static ImageCodecInfo GetEncoder(ImageFormat format)
+		{
+			ImageCodecInfo[] codecs = ImageCodecInfo.GetImageDecoders();
+
+			foreach (ImageCodecInfo codec in codecs)
+			{
+				if (codec.FormatID == format.Guid)
+				{
+					return codec;
+				}
+			}
+
+			return null;
+		}
+
+
+
+	}
+}