将图片转换成HTML格式的文字图程序源代码

■ 将图片转换成HTML格式的文字图

————————————————以下为程序代码—————————————

using System;

using System.Drawing;

using System.Text;

namespace http://doc.wendoc.com.ClassLib

{

///

/// 将图片转换为Html

///

public class Picture2HtmlPicture

{

///

/// 构造函数

///

public Picture2HtmlPicture()

{

//构造函数

}

///

/// 将图片转换为HTML

///

/// 图片文件名

/// HTML内容

public string MakeHtmlPicture(string FileName)

{

try

{

int intX;

int intY;

int intWidth;

Color clrPicture;

Bitmap bmpPicture;

StringBuilder sb = new StringBuilder();

//检测文件名是否为空，如果为空，则返回空

if (FileName == "")

{

return null;

}

//打开图片文件

bmpPicture = new Bitmap(FileName);

sb.Append("\r\n");

sb.Append("

sb.Append("

sb.Append(".Font{font-family: Arial; font-size: 1px}\r\n");

sb.Append("\r\n");

intWidth = bmpPicture.Size.Width;

if (intWidth < 100)

{

intWidth = 100;

}

else

{

intWidth = bmpPicture.Size.Width + 50;

}

sb.Append("\r\n");

//通过循环，将图片的颜色提取出来

for (intY = 0; intY < bmpPicture.Size.Height; intY++)

{

for (intX = 0; intX < bmpPicture.Size.Width; intX++)

{

clrPicture = bmpPicture.GetPixel(intX,intY);

string strColor = clrPicture.ToArgb().ToString("x5");

string strHexColor = "#" + strColor.Substring(2);

//将图片颜色写到HTML中

sb.Append("");

sb.Append("x");

sb.Append("");

sb.Append("\r\n");

}

sb.Append("
\r\n");

}

sb.Append("\r\n");

sb.Append("\r\n");

sb.Append("");

//返回HTML内容

return sb.ToString();

}

catch(Exception err)

{

throw(new Exception("发生异常：" + err.Message));

}

}

}

}

————————————————————————————————————

private void button1_Click(object sender, System.EventArgs e)

{

ofdPicture.ShowDialog();

string strFileName = ofdPicture.FileName;

Picture2HtmlPicture clsHtmlPicture = new Picture2HtmlPicture();

txtTest.Text = clsHtmlPicture.MakeHtmlPicture(strFileName);

}

先解码。接着转换为纯文本，用这段代码：

public static string HtmlToText(string source)

{

string result;

//remove line breaks,tabs

result = source.Replace("\r", " ");

result = result.Replace("\n", " ");

result = result.Replace("\t", " ");

//remove the header

result = Regex.Replace(result, "(

result = Regex.Replace(result, @"])*>", "

result = Regex.Replace(result, @"()", string.Empty, RegexOptions.IgnoreCase);

//remove all styles

result = Regex.Replace(result, @"])*>", "

result = Regex.Replace(result, "()", string.Empty, RegexOptions.IgnoreCase);

//insert tabs in spaces of

result = Regex.Replace(result, @"])*>", " ", RegexOptions.IgnoreCase);

//insert line breaks in places of
and

result = Regex.Replace(result, @"", "\r", RegexOptions.IgnoreCase);

result = Regex.Replace(result, @"", "\r", RegexOptions.IgnoreCase);

//insert line paragraphs in places of

tags

result = Regex.Replace(result, @"])*>", "\r\r", RegexOptions.IgnoreCase);

result = Regex.Replace(result, @"])*>", "\r\r", RegexOptions.IgnoreCase);

//remove anything thats enclosed inside < >

result = Regex.Replace(result, @"]*>", string.Empty, RegexOptions.IgnoreCase);

//replace special characters:

result = Regex.Replace(result, @"&", "&", RegexOptions.IgnoreCase);

result = Regex.Replace(result, @" ", " ", RegexOptions.IgnoreCase);

result = Regex.Replace(result, @"<", "

result = Regex.Replace(result, @">", ">", RegexOptions.IgnoreCase);

result = Regex.Replace(result, @"&(.{2,6});", string.Empty, RegexOptions.IgnoreCase);

//remove extra line breaks and tabs

result = Regex.Replace(result, @" ( )+", " ");

result = Regex.Replace(result, "(\r)( )+(\r)", "\r\r");

result = Regex.Replace(result, @"(\r\r)+", "\r\n");

return result;

}