asp.Netでサムネイルを生成し、著作権インスタンスコードを追加

 
  
//  image     
  
Drawing.Image image,newimage; 
  
//     
  
protected string imagePath; 
  
//     
  
protected string imageType; 
  
//     
  
protected string imageName; 
  
//        ,    Image                      
  
//        GetThumbnailImage          ，    true；     false 
  
System.Drawing.Image.GetThumbnailImageAbort callb = null; 
   
  
private void sm_Click(object sender, System.EventArgs e)
{
string mPath;
 
  
if("" != File1.PostedFile.FileName) //File1       
{
imagePath = File1.PostedFile.FileName;
//      
imageType= imagePath.Substring(imagePath.LastIndexOf(".")+1);
//      
imageName = imagePath.Substring(imagePath.LastIndexOf("\\")+1);
//     JPG  GIF  ,        ,            
if("jpg" != imageType && "gif" != imageType)
{
Response.Write(" alert('   ！    jpg  gif     ！');");
return;
}
else
{
try
{
//      
mPath=Server.MapPath("UploadFiles");
//       
File1.PostedFile.SaveAs(mPath+"\\"+imageName);
 
  
//    , imageSource     
//imageSource.ImageUrl = "UploadFiles/"+imageName;
 
  
//          
image=System.Drawing.Image.FromFile(mPath+"\\"+imageName); 
//     
newimage=image.GetThumbnailImage(200,200,callb,new System.IntPtr());
//              
newimage.Save(Server.MapPath("UploadFiles")+"\\small"+imageName);
//  image       
image.Dispose();
//  newimage     
newimage.Dispose();
//     
 
  
AddTextToImg ("UploadFiles/"+"small"+imageName,"Pic Info"); //           
Image1.ImageUrl = "UploadFiles/"+"small"+imageName;
 
  
Script.Alert("    !");
}
catch
{
Script.Alert("    !");
}
 
  
} // end else
}
 
  
//            ,
// AddTextToImg (physicPath,"Pic Info");
private void AddTextToImg(string fileName,string text) 
{ 
//string sss = MapPath(fileName);
 
  
if ( !File.Exists ( fileName)) {
throw new FileNotFoundException("The file don't exist!"); 
}
 
  
//                ，       
 
  
System.Drawing.Image image = System.Drawing.Image.FromFile(fileName);//MapPath(fileName));
Bitmap bitmap = new Bitmap(image,image.Width,image.Height); 
Graphics g = Graphics.FromImage(bitmap);
 
  
float fontSize = 22.0f; //    
float textWidth = text.Length*fontSize; //      
//          ，              
float rectX = 0;
float rectY = 0;
float rectWidth = text.Length*(fontSize+18);
float rectHeight = fontSize+18;
//     
RectangleF textArea = new RectangleF(rectX,rectY,rectWidth,rectHeight);
Font font = new Font("  ",fontSize);//    
Brush whiteBrush = new SolidBrush(Color.White);
Brush blackBrush = new SolidBrush(Color.Black);
g.FillRectangle(blackBrush,rectX,rectY,rectWidth,rectHeight);
g.DrawString(text,font,whiteBrush,textArea);
MemoryStream ms = new MemoryStream();
//   Jpg  
bitmap.Save(ms,ImageFormat.Jpeg);
 
  
//        ，        ，           
/**//* Response.Clear();
Response.ContentType = "image/jpeg";
Response.BinaryWrite( ms.ToArray() );
*/
FileStream fs=new FileStream(fileName, FileMode.OpenOrCreate);//.CreateNew);
fs.Write(ms.ToArray(),0,ms.ToArray().Length);
fs.Close();
 
  
Image1.ImageUrl = fileName; //       Image   
g.Dispose();
bitmap.Dispose();
image.Dispose();
}