// For now, we only export in uncompressed ARGB32 format. If someone requests this functionality, // we can always add more through an export dialog. public void Export(LayerManager layers, string fileName) { ImageSurface surf = layers.GetFlattenedImage (); // Assumes the surface is in ARGB32 format BinaryWriter writer = new BinaryWriter (new FileStream (fileName, FileMode.Create, FileAccess.Write)); try { TgaHeader header = new TgaHeader(); header.idLength = 0; header.cmapType = 0; header.imageType = 2; // uncompressed RGB header.cmapIndex = 0; header.cmapLength = 0; header.cmapEntrySize = 0; header.xOrigin = 0; header.yOrigin = 0; header.imageWidth = (ushort) surf.Width; header.imageHeight = (ushort) surf.Height; header.pixelDepth = 32; header.imageDesc = 8; // 32-bit, lower-left origin, which is weird but hey... header.WriteTo (writer); byte[] data = surf.Data; // It just so happens that the Cairo ARGB32 internal representation matches // the TGA format, except vertically-flipped. In little-endian, of course. for (int y = surf.Height - 1; y >= 0; y--) writer.Write (data, surf.Stride * y, surf.Stride); } finally { (surf as IDisposable).Dispose (); writer.Close (); } }
public void Export(LayerManager layers, string fileName) { Cairo.ImageSurface surf = layers.GetFlattenedImage (); Pixbuf pb = surf.ToPixbuf (); DoSave(pb, fileName, filetype); (pb as IDisposable).Dispose (); (surf as IDisposable).Dispose (); }
public void Export(LayerManager layers, string fileName) { ZipOutputStream stream = new ZipOutputStream (new FileStream (fileName, FileMode.Create)); ZipEntry mimetype = new ZipEntry ("mimetype"); mimetype.CompressionMethod = CompressionMethod.Stored; stream.PutNextEntry (mimetype); byte[] databytes = System.Text.Encoding.ASCII.GetBytes ("image/openraster"); stream.Write (databytes, 0, databytes.Length); for (int i = 0; i < layers.Count; i++) { Pixbuf pb = layers[i].Surface.ToPixbuf (); byte[] buf = pb.SaveToBuffer ("png"); (pb as IDisposable).Dispose (); stream.PutNextEntry (new ZipEntry ("data/layer" + i.ToString () + ".png")); stream.Write (buf, 0, buf.Length); } stream.PutNextEntry (new ZipEntry ("stack.xml")); databytes = GetLayerXmlData (layers); stream.Write (databytes, 0, databytes.Length); ImageSurface flattened = layers.GetFlattenedImage(); Pixbuf flattenedPb = flattened.ToPixbuf (); Size newSize = GetThumbDimensions (flattenedPb.Width, flattenedPb.Height); Pixbuf thumb = flattenedPb.ScaleSimple (newSize.Width, newSize.Height, InterpType.Bilinear); stream.PutNextEntry (new ZipEntry ("Thumbnails/thumbnail.png")); databytes = thumb.SaveToBuffer ("png"); stream.Write (databytes, 0, databytes.Length); (flattened as IDisposable).Dispose(); (flattenedPb as IDisposable).Dispose(); (thumb as IDisposable).Dispose(); stream.Close (); }