C〓〓〓の自動発生のきれいな水晶の効果の顔写真の実現コード

他の微博システムと同様に、「多可内網微博システム」のユーザーも自分の顔写真をアップロードして、プロフィールカットをサポートします。
しかし、「多可内網微博システム」の顔写真はより綺麗になります。システムが水晶効果の顔写真を実現したからです。C〓〓のプログラムは水晶の効果の顔写真の過程を実現します：
（1）画像は幅または高さ=90の顔写真まで縮小されます。
（2）ユーザによって適切な位置を選択して90 x 90の最終的な画像を切り取ります。
（3）水晶効果を追加します。
コード献上：

/// <summary>
///          
/// </summary>
/// <param name="containsPage"></param>
/// <param name="w"></param>
/// <param name="h"></param>
/// <param name="MemoString"></param>
public static void Avatar(Page containsPage, string filename, int r, int m, int s, int x, int y, bool save, string new_avatar)
{
System.Drawing.Image imageSrc = System.Drawing.Image.FromFile(HttpContext.Current.Server.MapPath("/") + filename);
int w = imageSrc.Width;
int h = imageSrc.Height;
if (r == 1 || r == 3)
{
h = imageSrc.Width;
w = imageSrc.Height;
}
if (save)
{
w = h = 90;
}
if (w > 300) w = 300;
if (h > 300) h = 300;
Color backColor = Color.DarkTurquoise;
Size size = new Size(w, h);
System.Drawing.Bitmap btnbmp = new Bitmap(w, h);
Graphics g = Graphics.FromImage(btnbmp);
//      ,     
g.Clear(Color.White);
Color clr = backColor;
g.SmoothingMode = SmoothingMode.AntiAlias;//    
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
//       －  
int btnOff = 0;//    
Rectangle rc1 = new Rectangle(btnOff, btnOff, size.Width - 1 - btnOff, size.Height - 1 - btnOff);
GraphicsPath gpath1 = GetGraphicsPath(rc1, 10);
GraphicsPath gpath1a = GetGraphicsPath(rc1, 15);
LinearGradientBrush br1 = new LinearGradientBrush(new Point(0, 0), new Point(0, rc1.Height + 6), clr, Color.White);
//       －  
int shadowOff = 1;//    
Rectangle rc2 = rc1;
rc2.Offset(0, shadowOff);
GraphicsPath gpath2 = GetGraphicsPath(rc2, 10);
PathGradientBrush br2 = new PathGradientBrush(gpath2);
br2.CenterColor = Color.FromArgb(0, 0, 0); // Color.Black;
br2.SurroundColors = new Color[] { Color.FromArgb(64, 64, 64, 64), Color.FromArgb(64, 128, 128, 128) }; // SystemColors.ButtonFace
//      ，                 ，               
//           －  
Rectangle rc3 = rc1;
rc3.Inflate(-1, -1);
rc3.Height = 15;
GraphicsPath gpath3 = GetGraphicsPath(rc3, 10);
LinearGradientBrush br3 = new LinearGradientBrush(rc3, Color.FromArgb(255, Color.White), Color.FromArgb(0, Color.White), LinearGradientMode.Vertical);
//    
//    
if (s > 0)
{
g.FillPath(br2, gpath2);
}
//    
if (s > 0)
{
g.FillPath(br1, gpath1);
}
//if (s > 0)
//{
g.SetClip(gpath1a, CombineMode.Replace);
//}
switch (m)
{
case 1:
_currentBitmap = (Bitmap)imageSrc;
RotateFlip(RotateFlipType.RotateNoneFlipX);
imageSrc = (System.Drawing.Image)_currentBitmap;
break;
case 2:
_currentBitmap = (Bitmap)imageSrc;
RotateFlip(RotateFlipType.RotateNoneFlipY);
imageSrc = (System.Drawing.Image)_currentBitmap;
break;
default:
break;
}
switch (r)
{
case 1:
_currentBitmap = (Bitmap)imageSrc;
RotateFlip(RotateFlipType.Rotate90FlipNone);
imageSrc = (System.Drawing.Image)_currentBitmap;
break;
case 2:
_currentBitmap = (Bitmap)imageSrc;
RotateFlip(RotateFlipType.Rotate180FlipNone);
imageSrc = (System.Drawing.Image)_currentBitmap;
break;
case 3:
_currentBitmap = (Bitmap)imageSrc;
RotateFlip(RotateFlipType.Rotate270FlipNone);
imageSrc = (System.Drawing.Image)_currentBitmap;
break;
default:
break;
}
g.DrawImage(imageSrc, -x, -y);
//        
if (s > 0)
{
g.FillPath(br3, gpath3);
}
imageSrc.Dispose();
g.Dispose();
MemoryStream stream = new MemoryStream();
btnbmp.Save(stream, System.Drawing.Imaging.ImageFormat.Png);
if (save)
{
try
{
//                              
string sFile = HttpContext.Current.Server.MapPath("/") + new_avatar;
btnbmp.Save(sFile);
}
catch (System.Exception e)
{
throw e;
}
}
//    containsPage 
containsPage.Response.Expires = 0;
containsPage.Response.ExpiresAbsolute = System.DateTime.Now.AddSeconds(-1);
containsPage.Response.AddHeader("pragma", "no-cache");
containsPage.Response.AddHeader("cache-control", "private");
containsPage.Response.CacheControl = "no-cache";
containsPage.Response.Clear();
containsPage.Response.ContentType = "image/png";
containsPage.Response.BinaryWrite(stream.ToArray());
}