public void TestSave()
{
string desc = "this is an example description";
string desc2 = "\x00a9 Novell Inc.";
PixbufOrientation orient = PixbufOrientation.TopRight;
Gdk.Pixbuf test = new Gdk.Pixbuf(null, "f-spot-32.png");
string path = ImageFile.TempPath("joe.jpg");
PixbufUtils.SaveJpeg(test, path, 75, new Exif.ExifData());
JpegFile jimg = new JpegFile(path);
jimg.SetDescription(desc);
jimg.SetOrientation(orient);
jimg.SaveMetaData(path);
JpegFile mod = new JpegFile(path);
Assert.AreEqual(mod.Orientation, orient);
Assert.AreEqual(mod.Description, desc);
jimg.SetDescription(desc2);
jimg.SaveMetaData(path);
mod = new JpegFile(path);
Assert.AreEqual(mod.Description, desc2);
File.Delete(path);
}
private static void RotateOrientation(string original_path, RotateDirection direction)
{
using (FSpot.ImageFile img = FSpot.ImageFile.Create(original_path)) {
if (img is JpegFile)
{
FSpot.JpegFile jimg = img as FSpot.JpegFile;
PixbufOrientation orientation = direction == RotateDirection.Clockwise
? PixbufUtils.Rotate90(img.Orientation)
: PixbufUtils.Rotate270(img.Orientation);
jimg.SetOrientation(orientation);
jimg.SaveMetaData(original_path);
}
else if (img is PngFile)
{
PngFile png = img as PngFile;
bool supported = false;
//FIXME there isn't much png specific here except the check
//the pixbuf is an accurate representation of the real file
//by checking the depth. The check should be abstracted and
//this code made generic.
foreach (PngFile.Chunk c in png.Chunks)
{
PngFile.IhdrChunk ihdr = c as PngFile.IhdrChunk;
if (ihdr != null && ihdr.Depth == 8)
{
supported = true;
}
}
if (!supported)
{
throw new RotateException("Unable to rotate photo type", original_path);
}
string backup = ImageFile.TempPath(original_path);
using (Stream stream = File.Open(backup, FileMode.Truncate, FileAccess.Write)) {
using (Pixbuf pixbuf = img.Load()) {
PixbufOrientation fake = (direction == RotateDirection.Clockwise) ? PixbufOrientation.RightTop : PixbufOrientation.LeftBottom;
using (Pixbuf rotated = PixbufUtils.TransformOrientation(pixbuf, fake)) {
img.Save(rotated, stream);
}
}
}
File.Copy(backup, original_path, true);
File.Delete(backup);
}
else
{
throw new RotateException("Unable to rotate photo type", original_path);
}
}
}