/// <summary>
/// Draws art text with center point and black box
/// </summary>
private static void DrawArtTextWithMarkup(ArtText text, Graphics graphics)
{
// Draw round text, its black box and center point
graphics.DrawText(text);
graphics.DrawRectangle(new Pen(RgbColor.Gray, 1f), text.GetBlackBox());
graphics.FillEllipse(new SolidBrush(RgbColor.Red), text.Center.X - 3, text.Center.Y - 3, 6, 6);
}
static Stream BuildTextImage(string strText,
Color color,
int nWidth = 400)
{
// 文字图片
return(ArtText.BuildArtText(
strText,
"Consolas", // "Microsoft YaHei",
(float)16,
FontStyle.Bold,
color,
Color.Transparent,
Color.Gray,
ArtEffect.None,
ImageFormat.Png,
nWidth));
}
// 文字图片
public static MemoryStream TextImage(
ImageFormat image_format,
string strText,
System.Drawing.Color text_color,
System.Drawing.Color back_color,
float fFontSize = 10,
int nWidth = 300)
{
return(ArtText.BuildArtText(
strText,
"Microsoft YaHei",
fFontSize,
FontStyle.Regular,
text_color,
back_color,
Color.Gray,
ArtEffect.None,
image_format,
nWidth));
}
void OutputLogo(string strFileName,
string strText)
{
FileInfo fi = new FileInfo(strFileName);
DateTime lastmodified = fi.LastWriteTimeUtc;
this.Response.AddHeader("Last-Modified", DateTimeUtil.Rfc1123DateTimeString(lastmodified)); // .ToUniversalTime()
TextInfo info = new TextInfo();
info.FontFace = "Microsoft YaHei";
info.FontSize = 10;
info.colorText = Color.Gray;
// 文字图片
using (MemoryStream image = ArtText.PaintText(
strFileName,
strText,
info,
"center",
"100%",
"100%",
"65%",
ImageFormat.Jpeg))
{
this.Response.ContentType = "image/jpeg";
this.Response.AddHeader("Content-Length", image.Length.ToString());
//this.Response.AddHeader("Pragma", "no-cache");
//this.Response.AddHeader("Cache-Control", "no-store, no-cache, must-revalidate, post-check=0, pre-check=0");
//this.Response.AddHeader("Expires", "0");
FlushOutput flushdelegate = new FlushOutput(MyFlushOutput);
image.Seek(0, SeekOrigin.Begin);
StreamUtil.DumpStream(image, Response.OutputStream, flushdelegate);
}
// Response.Flush();
Response.End();
}
