/// <summary>
/// Creates a thumbnail of the specified image filename
/// </summary>
/// <param name="aInputFilename">The source filename to load a System.Drawing.Image from</param>
/// <param name="aThumbTargetPath">Filename of the thumbnail to create</param>
/// <param name="aThumbWidth">Maximum width of the thumbnail</param>
/// <param name="aThumbHeight">Maximum height of the thumbnail</param>
/// <param name="aRotation">
/// 0 = no rotate
/// 1 = rotate 90 degrees
/// 2 = rotate 180 degrees
/// 3 = rotate 270 degrees
/// </param>
/// <param name="aFastMode">Use low quality resizing without interpolation suitable for small thumbnails</param>
/// <returns>Whether the thumb has been successfully created</returns>
private static bool CreateThumbnail(string aInputFilename, string aThumbTargetPath,
int iMaxWidth, int iMaxHeight, int iRotate)
{
if (string.IsNullOrEmpty(aInputFilename) || string.IsNullOrEmpty(aThumbTargetPath) || iMaxHeight <= 0 ||
iMaxHeight <= 0)
{
return(false);
}
if (!File.Exists(aInputFilename))
{
return(false);
}
Image myImage = null;
try
{
myImage = ImageFast.FromFile(aInputFilename);
return(CreateThumbnail(myImage, aThumbTargetPath, iMaxWidth, iMaxHeight, iRotate, true));
}
catch (ArgumentException)
{
Log.Info("Picture: Fast loading of thumbnail {0} failed - trying safe fallback now", aInputFilename);
try
{
myImage = Image.FromFile(aInputFilename, true);
return(CreateThumbnail(myImage, aThumbTargetPath, iMaxWidth, iMaxHeight, iRotate, true));
}
catch (OutOfMemoryException)
{
Log.Info("Picture: Creating thumbnail failed - image format is not supported of {0}", aInputFilename);
return(false);
}
catch (Exception ex)
{
Log.Error("Picture: CreateThumbnail exception err:{0} stack:{1}", ex.Message, ex.StackTrace);
return(false);
}
}
finally
{
if (myImage != null)
{
myImage.Dispose();
}
}
}
public static bool CreateTileThumb(List <string> aPictureList, string aThumbPath, int PreviewColumns, int PreviewRows)
{
bool result = false;
if (aPictureList.Count > 0)
{
try
{
// Use first generated picture to take the ratio
Image imgFolder = null;
try
{
imgFolder = ImageFast.FromFile(aPictureList[0]);
}
catch (Exception)
{
Log.Debug("TvThumbnails: Fast loading failed {0} failed using safer fallback", aPictureList[0]);
imgFolder = Image.FromFile(aPictureList[0]);
}
if (imgFolder != null)
{
using (imgFolder)
{
int width = imgFolder.Width;
int height = imgFolder.Height;
int thumbnailWidth = 256;
int thumbnailHeight = 256;
// draw a fullsize thumb if only 1 pic is available
switch (PreviewColumns)
{
case 1:
thumbnailWidth = width;
break;
case 2:
thumbnailWidth = width / 2;
break;
case 3:
thumbnailWidth = width / 3;
break;
}
switch (PreviewRows)
{
case 1:
thumbnailHeight = height;
break;
case 2:
thumbnailHeight = height / 2;
break;
case 3:
thumbnailHeight = height / 3;
break;
}
using (Bitmap bmp = new Bitmap(width, height))
{
using (Graphics g = Graphics.FromImage(bmp))
{
g.CompositingQuality = Thumbs.Compositing;
g.InterpolationMode = Thumbs.Interpolation;
g.SmoothingMode = Thumbs.Smoothing;
g.DrawImage(imgFolder, 0, 0, width, height);
int w, h;
w = thumbnailWidth;
h = thumbnailHeight;
try
{
if (PreviewColumns == 1 && PreviewRows == 1)
{
AddPicture(g, (string)aPictureList[0], 0, 0, w, h);
}
if (PreviewColumns == 1 && PreviewRows == 2)
{
AddPicture(g, (string)aPictureList[0], 0, 0, w, h);
AddPicture(g, (string)aPictureList[1], 0, h, w, h);
}
if (PreviewColumns == 2 && PreviewRows == 1)
{
AddPicture(g, (string)aPictureList[0], 0, 0, w, h);
AddPicture(g, (string)aPictureList[1], w, 0, w, h);
}
if (PreviewColumns == 2 && PreviewRows == 2)
{
AddPicture(g, (string)aPictureList[0], 0, 0, w, h);
AddPicture(g, (string)aPictureList[1], w, 0, w, h);
AddPicture(g, (string)aPictureList[2], 0, h, w, h);
AddPicture(g, (string)aPictureList[3], w, h, w, h);
}
if (PreviewColumns == 1 && PreviewRows == 3)
{
AddPicture(g, (string)aPictureList[0], 0, 0, w, h);
AddPicture(g, (string)aPictureList[1], 0, h, w, h);
AddPicture(g, (string)aPictureList[2], 0, 2 * h, w, h);
}
if (PreviewColumns == 2 && PreviewRows == 3)
{
AddPicture(g, (string)aPictureList[0], 0, 0, w, h);
AddPicture(g, (string)aPictureList[1], w, 0, w, h);
AddPicture(g, (string)aPictureList[2], 0, h, w, h);
AddPicture(g, (string)aPictureList[3], w, h, w, h);
AddPicture(g, (string)aPictureList[4], 0, 2 * h, w, h);
AddPicture(g, (string)aPictureList[5], w, 2 * h, w, h);
}
if (PreviewColumns == 3 && PreviewRows == 3)
{
AddPicture(g, (string)aPictureList[0], 0, 0, w, h);
AddPicture(g, (string)aPictureList[1], w, 0, w, h);
AddPicture(g, (string)aPictureList[2], 2 * w, 0, w, h);
AddPicture(g, (string)aPictureList[3], 0, h, w, h);
AddPicture(g, (string)aPictureList[4], w, h, w, h);
AddPicture(g, (string)aPictureList[5], 2 * w, h, w, h);
AddPicture(g, (string)aPictureList[6], 0, 2 * h, w, h);
AddPicture(g, (string)aPictureList[7], w, 2 * h, w, h);
AddPicture(g, (string)aPictureList[8], 2 * w, 2 * h, w, h);
}
if (PreviewColumns == 3 && PreviewRows == 1)
{
AddPicture(g, (string)aPictureList[0], 0, 0, w, h);
AddPicture(g, (string)aPictureList[1], w, 0, w, h);
AddPicture(g, (string)aPictureList[2], 2 * w, 0, w, h);
}
if (PreviewColumns == 3 && PreviewRows == 2)
{
AddPicture(g, (string)aPictureList[0], 0, 0, w, h);
AddPicture(g, (string)aPictureList[1], w, 0, w, h);
AddPicture(g, (string)aPictureList[2], 2 * w, 0, w, h);
AddPicture(g, (string)aPictureList[3], 0, h, w, h);
AddPicture(g, (string)aPictureList[4], w, h, w, h);
AddPicture(g, (string)aPictureList[5], 2 * w, h, w, h);
}
}
catch (Exception ex)
{
Log.Error("Utils: An exception occured creating CreateTileThumb: {0}", ex.Message);
}
}
try
{
string tmpFile = Path.GetTempFileName();
Log.Debug("CreateTileThumb: before Saving thumb! tmpFile: {0}", tmpFile);
bmp.Save(tmpFile, Thumbs.ThumbCodecInfo, Thumbs.ThumbEncoderParams);
Log.Debug("CreateTileThumb: Saving thumb!");
CreateThumbnail(tmpFile, aThumbPath, (int)Thumbs.ThumbLargeResolution,
(int)Thumbs.ThumbLargeResolution, 0);
Log.Debug("CreateTileThumb: after Saving thumb!");
File.Delete(tmpFile);
if (imgFolder != null)
{
imgFolder.Dispose();
}
if (aPictureList.Count > 0)
{
string pictureListName = string.Empty;
try
{
for (int i = 0; i < (aPictureList.Count); i++)
{
pictureListName = aPictureList[i];
File.Delete(aPictureList[i]);
}
}
catch (FileNotFoundException)
{
Log.Debug("CreateTileThumb: {0} file not found.", pictureListName);
}
}
Thread.Sleep(100);
if (File.Exists(aThumbPath))
{
result = true;
}
}
catch (Exception ex2)
{
Log.Error("CreateTileThumb: An exception occured saving CreateTileThumb: {0} - {1}", aThumbPath,
ex2.Message);
}
}
}
}
}
catch (FileNotFoundException)
{
Log.Error("CreateTileThumb: Your skin does not find first image to create CreateTileThumb!");
}
catch (Exception exm)
{
Log.Error("CreateTileThumb: An error occured creating folder CreateTileThumb: {0}", exm.Message);
}
}
return(result);
}