public static bool create_icon(Guid?applicationId, Guid iconId, IconType iconType,
byte[] fileContent, ref string errorMessage, ref IconMeta meta)
{
int width = 100, height = 100, highQualityWidth = 600, highQualityHeight = 600;
FolderNames imageFolder = FolderNames.ProfileImages,
highQualityImageFolder = FolderNames.HighQualityProfileImage;
bool isValid = DocumentUtilities.get_icon_parameters(applicationId, iconType, ref width, ref height,
ref highQualityWidth, ref highQualityHeight, ref imageFolder, ref highQualityImageFolder);
if (!isValid)
{
return(false);
}
DocFileInfo highQualityFile = new DocFileInfo()
{
FileID = iconId, Extension = "jpg", FolderName = highQualityImageFolder
};
DocFileInfo file = new DocFileInfo()
{
FileID = iconId, Extension = "jpg", FolderName = imageFolder
};
byte[] hqContent = new byte[0];
bool succeed = RVGraphics.make_thumbnail(applicationId,
fileContent, highQualityFile, ref hqContent, highQualityWidth, highQualityHeight,
width, height, ref errorMessage, highQualityFile.Extension, dontStore: false);
return(succeed && hqContent != null && hqContent.Length > 0 &&
RVGraphics.extract_thumbnail(applicationId, highQualityFile, hqContent,
file, -1, -1, -1, -1, width, height, ref errorMessage, ref meta));
}
public static bool extract_thumbnail(Guid?applicationId, DocFileInfo sourceFile, byte[] sourceContent,
DocFileInfo destFile, int x, int y, int width, int height, int thumbnailWidth, int thumbnailHeight,
ref string message, ref IconMeta meta)
{
try
{
if (sourceFile == null || sourceContent == null || sourceContent.Length == 0)
{
return(false);
}
destFile.Extension = "jpg";
if (!string.IsNullOrEmpty(sourceFile.Extension) && sourceFile.Extension != "jpg")
{
using (MemoryStream stream = new MemoryStream(sourceContent))
using (MemoryStream newSt = new MemoryStream())
using (Image img = Bitmap.FromStream(stream))
{
img.Save(newSt, ImageFormat.Jpeg);
img.Dispose();
//sourceFile.delete(applicationId);
sourceFile.Extension = "jpg";
sourceContent = newSt.ToArray();
//sourceFile.store(applicationId, newSt.ToArray());
}
}
Image retImage = null;
if (extract_thumbnail(applicationId, sourceFile, sourceContent, destFile, x, y, width, height,
thumbnailWidth, thumbnailHeight, ref retImage, ref message, ref meta))
{
using (MemoryStream st = new MemoryStream())
{
retImage.Save(st, ImageFormat.Jpeg);
retImage.Dispose();
destFile.store(applicationId, st.ToArray());
}
}
return(true);
}
catch
{
message = "{\"ErrorText\":\"" + Messages.OperationFailed.ToString() + "\"}";
return(false);
}
}
public static bool extract_thumbnail(Guid?applicationId, DocFileInfo sourceFile, byte[] sourceContent,
DocFileInfo destFile, int x, int y, int width, int height, int thumbnailWidth, int thumbnailHeight,
ref Image retImage, ref string message, ref IconMeta meta)
{
try
{
if (sourceContent == null || sourceContent.Length == 0)
{
return(false);
}
bool result = true;
using (MemoryStream stream = new MemoryStream(sourceContent))
using (Bitmap image = Bitmap.FromStream(stream) as Bitmap)
{
if (image.Width < thumbnailWidth || image.Height < thumbnailHeight)
{
message = "{\"ErrorText\":\"" + Messages.ImageSizeIsNotValid.ToString() + "\"}";
image.Dispose();
return(false);
}
if (x < 0 || y < 0 || width <= 0 || height <= 0)
{
double aspectRatio = (double)thumbnailWidth / (double)thumbnailHeight;
int min = ((double)image.Width / (double)thumbnailWidth) < ((double)image.Height / (double)thumbnailHeight) ?
image.Width : image.Height;
if (min == image.Width)
{
width = image.Width;
height = (int)Math.Floor((double)width / aspectRatio);
}
else
{
height = image.Height;
width = (int)Math.Floor((double)height * aspectRatio);
}
x = (image.Width - width) / 2;
y = (image.Height - height) / 2;
}
meta = new IconMeta()
{
X = x,
Y = y,
Width = width,
Height = height,
Icon = destFile,
HighQualityIcon = sourceFile
};
message = meta.toJson(applicationId);
Rectangle rect = new Rectangle(x, y, width, height);
using (Bitmap target = new Bitmap(rect.Width, rect.Height))
{
Graphics g = Graphics.FromImage(target);
g.DrawImage(image, new Rectangle(0, 0, target.Width, target.Height), rect, GraphicsUnit.Pixel);
result = make_thumbnail(target as Image,
thumbnailWidth, thumbnailHeight, 0, 0, ref retImage, ref message, true);
}
if (!result)
{
message = "{\"ErrorText\":\"" + Messages.OperationFailed + "\"}";
}
return(result);
}
}
catch { message = "{\"ErrorText\":\"" + Messages.OperationFailed + "\"}"; return(false); }
}