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class CMMBUtility
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{
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private CMMBUtility() { }
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/// <summary>
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///
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/// </summary>
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/// <param name="b"></param>
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/// <param name="txt"></param>
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/// <param name="TextFont"></param>
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/// <param name="TextSize"></param>
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/// <param name="c"></param>
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/// <param name="x"></param>
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/// <param name="y"></param>
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/// <param name="width"></param>
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/// <param name="height"></param>
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/// <returns></returns>
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public static Bitmap WriteTxtOnBitmap(Bitmap b, string txt, int TextSize, Color c, int x, int y, int width, int height)
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{
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if (b == null)
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{
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return null;
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}
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Graphics g = Graphics.FromImage(b);
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Font drawFont = new Font("宋体", (float)TextSize, FontStyle.Regular);
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SolidBrush drawBrush = new SolidBrush(c);
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RectangleF drawRect = new RectangleF(x, y, width, height);
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g.DrawString(txt, drawFont, drawBrush, drawRect);
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g.Dispose();
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return b;
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}
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public static String GetDataPath(Form currentForm)
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{
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String pathStr = currentForm.GetType().Assembly.ManifestModule.FullyQualifiedName;
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pathStr = pathStr.Substring(0, pathStr.LastIndexOf('\\'));
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return pathStr;
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}
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/// <summary>
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/// 取得一个文本文件的编码方式。如果无法在文件头部找到有效的前导符,Encoding.Default将被返回。
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/// </summary>
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/// <param name="fileName">文件名。</param>
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/// <returns></returns>
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//public static Encoding GetEncoding(string fileName)
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//{
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// return GetEncoding(fileName, Encoding.Default);
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//}
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/// <summary>
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/// 取得一个文本文件流的编码方式。
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/// </summary>
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/// <param name="stream">文本文件流。</param>
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/// <returns></returns>
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public static Encoding GetEncoding(FileStream stream)
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{
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return GetEncoding(stream, Encoding.Default);
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}
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/// <summary>
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/// 取得一个文本文件的编码方式。
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/// </summary>
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/// <param name="fileName">文件名。</param>
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/// <param name="defaultEncoding">默认编码方式。当该方法无法从文件的头部取得有效的前导符时,将返回该编码方式。</param>
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/// <returns></returns>
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public static Encoding GetEncoding(string fileName, Encoding defaultEncoding)
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{
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FileStream fs = new FileStream(fileName, FileMode.Open);
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Encoding targetEncoding = GetEncoding(fs, defaultEncoding);
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fs.Close();
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return targetEncoding;
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}
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/// <summary>
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/// 取得一个文本文件流的编码方式。
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/// </summary>
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/// <param name="stream">文本文件流。</param>
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/// <param name="defaultEncoding">默认编码方式。当该方法无法从文件的头部取得有效的前导符时,将返回该编码方式。</param>
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/// <returns></returns>
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public static Encoding GetEncoding(FileStream stream, Encoding defaultEncoding)
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{
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Encoding targetEncoding = defaultEncoding;
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if (stream != null && stream.Length >= 2)
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{
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//保存文件流的前4个字节
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byte byte1 = 0;
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byte byte2 = 0;
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byte byte3 = 0;
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// byte byte4 = 0;
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//保存当前Seek位置
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long origPos = stream.Seek(0, SeekOrigin.Begin);
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stream.Seek(0, SeekOrigin.Begin);
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int nByte = stream.ReadByte();
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byte1 = Convert.ToByte(nByte);
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byte2 = Convert.ToByte(stream.ReadByte());
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if (stream.Length >= 3)
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{
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byte3 = Convert.ToByte(stream.ReadByte());
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}
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//if (stream.Length >= 4)
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//{
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// byte4 = Convert.ToByte(stream.ReadByte());
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//}
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//根据文件流的前4个字节判断Encoding
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//Unicode {0xFF, 0xFE};
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//BE-Unicode {0xFE, 0xFF};
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//UTF8 = {0xEF, 0xBB, 0xBF};
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if (byte1 == 0xFE && byte2 == 0xFF)//UnicodeBe
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{
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targetEncoding = Encoding.BigEndianUnicode;
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}
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if (byte1 == 0xFF && byte2 == 0xFE && byte3 != 0xFF)//Unicode
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{
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targetEncoding = Encoding.Unicode;
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}
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if (byte1 == 0xEF && byte2 == 0xBB && byte3 == 0xBF)//UTF8
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{
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targetEncoding = Encoding.UTF8;
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}
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//恢复Seek位置
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stream.Seek(origPos, SeekOrigin.Begin);
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}
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return targetEncoding;
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}
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}
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