private void OnPngSizeLargeToggleChange(bool isOn)
{
if (isOn)
{
imgSize = ImgSize.Large;
// Export Image Dimensions
exportWidth = 7680;
exportHeight = 4320;
}
}
private void OnPngSizeMediumToggleChange(bool isOn)
{
if (isOn)
{
imgSize = ImgSize.Medium;
// Export Image Dimensions
exportWidth = 3840;
exportHeight = 2160;
}
}
private void OnPngSizeSmallToggleChange(bool isOn)
{
if (isOn)
{
imgSize = ImgSize.Small;
// Export Image Dimensions
exportWidth = 1920;
exportHeight = 1080;
}
}
public static ImgSize GetDimensions(byte[] imgdata)
{
MemoryStream memstream = null;
ImgSize imgsize = new ImgSize(0, 0, "xxx");
try
{
memstream = new MemoryStream(imgdata);
using (BinaryReader binaryReader = new BinaryReader(memstream))
{
imgsize = GetDimensions(binaryReader);
}
}
finally
{
if (memstream != null)
memstream.Close();
}
return imgsize;
}
public static void clr_GetADusersPhotos(SqlString ADpath, SqlString ADfilter)
{
//System.IO.StreamWriter file = Util.CreateLogFile();
SearchResultCollection results = null;
Int32 itemcount = 0;
try
{
DataTable tbl = new DataTable();
tbl.Columns.Add("ObjectGUID", typeof(Guid));
tbl.Columns.Add("Width", typeof(int));
tbl.Columns.Add("Height", typeof(int));
tbl.Columns.Add("Format", typeof(string));
tbl.Columns.Add("Photo", typeof(byte[]));
DataRow row;
DirectoryEntry entry = new DirectoryEntry((string)ADpath);
DirectorySearcher searcher = new DirectorySearcher(entry);
searcher.Filter = (string)ADfilter;
searcher.PageSize = 500;
results = searcher.FindAll();
foreach (SearchResult searchResult in results)
{
itemcount++;
DirectoryEntry item = searchResult.GetDirectoryEntry();
PropertyValueCollection prop = Util.GetADproperty(item, "thumbnailphoto");
if (prop == null)
continue;
// Get image size
ImgSize imgsize = new ImgSize(0, 0, "xxx");
try
{
imgsize = ImageHeader.GetDimensions((byte[])prop[0]);
}
catch(Exception ex)
{
SqlContext.Pipe.Send("Warning: Get image size failed for user (" + Util.GetDistinguishedName(item) + ")"
+ " Exception: " + ex.Message);
}
row = tbl.NewRow();
row[0] = item.Guid;
if (!imgsize.IsEmpty()) // Image size will be NULL unless size has been read from the image header.
{
row[1] = imgsize.Width;
row[2] = imgsize.Height;
row[3] = imgsize.Format;
}
row[4] = prop[0];
tbl.Rows.Add(row);
}
// Return dataset to SQL server.
ReturnDatasetToSqlServer(tbl);
}
catch (System.Runtime.InteropServices.COMException)
{
SqlContext.Pipe.Send("COMException in clr_GetADusersPhotos. ItemCounter = " + itemcount.ToString());
throw;
}
catch (InvalidOperationException)
{
SqlContext.Pipe.Send("InvalidOperationException in clr_GetADusersPhotos. ItemCounter = " + itemcount.ToString());
throw;
}
catch (NotSupportedException)
{
SqlContext.Pipe.Send("NotSupportedException in clr_GetADusersPhotos. ItemCounter = " + itemcount.ToString());
throw;
}
catch (Exception)
{
SqlContext.Pipe.Send("Exception in clr_GetADusersPhotos. ItemCounter = " + itemcount.ToString());
throw;
}
finally
{
if (null != results)
{
results.Dispose(); // To prevent memory leaks, always call
results = null; // SearchResultCollection.Dispose() manually.
}
}
//file.Close();
}
public static string PictureSize(string fileName, string newFile, int maxWidth, int maxHeight, int PZ, bool tag)
{
if (maxWidth == 0 || maxHeight == 0)
{
return(fileName);
}
if (System.IO.File.Exists(HttpContext.Current.Server.MapPath("~" + fileName)))
{
System.Drawing.Image img = System.Drawing.Image.FromFile(HttpContext.Current.Server.MapPath("~" + fileName));
//if ((img.Width > maxWidth && img.Height > maxHeight) || (tag && (img.Width != maxWidth || img.Height != maxHeight)))
if (img.Width != maxWidth || img.Height != maxHeight)
{
System.Drawing.Imaging.ImageFormat thisFormat = img.RawFormat;
string t = "min";
if (tag)
{
t = "max";
}
ImgSize newSize = GetPictureSize(fileName, maxWidth, maxHeight, t);
/*
* if (newSize.Width == img.Width && newSize.Height == img.Height)
* {
* if(!tag ||( newSize.Width== maxWidth && newSize.Width == newSize.Height))
* {
*
* img.Dispose();
* return (fileName);
* }
* }*/
int CanvasWidth = newSize.Width, CanvasHeight = newSize.Height, CanvasTop = 0, CanvasLeft = 0;
if (tag)
{
CanvasWidth = maxWidth; CanvasHeight = maxHeight;
if (newSize.Width > maxWidth)
{
CanvasLeft = (newSize.Width - maxWidth) / 2;
}
//if (newSize.Height > maxHeight) CanvasTop = (newSize.Height - maxHeight) / 2;
}
else
{
CanvasWidth = maxWidth; CanvasHeight = maxHeight;
if (newSize.Width < maxWidth)
{
CanvasLeft = (newSize.Width - maxWidth) / 2;
}
if (newSize.Height < maxHeight)
{
CanvasTop = (newSize.Height - maxHeight) / 2;
}
}
Bitmap outBmp = new Bitmap(CanvasWidth, CanvasHeight);
Graphics g = Graphics.FromImage(outBmp);
Color color = Color.FromArgb(242, 242, 242);
Brush brush = new SolidBrush(color);
g.FillRectangle(brush, 0, 0, CanvasWidth, CanvasHeight);
// 设置画布的描绘质量
g.CompositingQuality = CompositingQuality.HighQuality;
g.SmoothingMode = SmoothingMode.HighQuality;
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
//throw new NullReferenceException(newSize.Width.ToString() + "," + newSize.Height.ToString() + "," + CanvasLeft.ToString());
g.DrawImage(img, new Rectangle(-CanvasLeft, -CanvasTop, newSize.Width, newSize.Height),
0, 0, img.Width, img.Height, GraphicsUnit.Pixel);
g.Dispose();
// 以下代码为保存图片时，设置压缩质量
EncoderParameters encoderParams = new EncoderParameters();
long[] quality = new long[1];
quality[0] = PZ;
EncoderParameter encoderParam = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
encoderParams.Param[0] = encoderParam;
//获得包含有关内置图像编码解码器的信息的ImageCodecInfo 对象。
ImageCodecInfo[] arrayICI = ImageCodecInfo.GetImageEncoders();
ImageCodecInfo jpegICI = null;
for (int x = 0; x < arrayICI.Length; x++)
{
if (arrayICI[x].FormatDescription.Equals("JPEG"))
{
jpegICI = arrayICI[x];//设置JPEG编码
break;
}
}
img.Dispose();
if (jpegICI != null)
{
outBmp.Save(HttpContext.Current.Server.MapPath("~" + newFile), jpegICI, encoderParams);
}
else
{
outBmp.Save(HttpContext.Current.Server.MapPath("~" + newFile), thisFormat);
}
outBmp.Dispose();
return(newFile);
}
return(fileName);
}
return("");
}
