private void refreshImages()
{
Cursor.Current = Cursors.WaitCursor;
if (!validateFolder(currentFolder))
{
lvwImages.Items.Clear();
return;
}
tbxFolder.Text = currentFolder;
try
{
lvwImages.Items.Clear();
foreach (string filename in Directory.GetFiles(currentFolder, "*.jpg"))
{
FileInfo fi = new FileInfo(filename);
ListViewItem lvi = new ListViewItem(fi.Name);
lvi.SubItems.Add(ExifImageInfo.GetOrientation(filename).ToString());
lvwImages.Items.Add(lvi);
}
}
finally
{
Cursor.Current = Cursors.Default;
}
}
private void rotateImage(string filename)
{
Image image;
EncoderValue encoderValue;
ImageCodecInfo codec = retrieveCodec("image/jpeg");
switch (ExifImageInfo.GetOrientation(filename))
{
case Orientation.Left:
encoderValue = EncoderValue.TransformRotate90;
break;
case Orientation.Right:
encoderValue = EncoderValue.TransformRotate270;
break;
default:
return;
}
EncoderParameters parameters = new EncoderParameters(1);
parameters.Param[0] = new EncoderParameter(Encoder.Transformation, (long)encoderValue);
MemoryStream memoryStream = new MemoryStream();
using (image = Image.FromFile(filename))
{
// Update the Exif orientation data in the image
int index = Array.IndexOf(image.PropertyIdList, ExifTags.Orientation);
PropertyItem propertyItem = image.PropertyItems[index];
propertyItem.Value = BitConverter.GetBytes((int)Orientation.Straight);
image.SetPropertyItem(propertyItem);
// Save image out to a memory stream that we'll later write to disk
image.Save(memoryStream, codec, parameters);
}
// Write the memory stream to disk
Image newImage = new Bitmap(memoryStream);
newImage.Save(filename);
}
