public static Gdk.Pixbuf GetPixbufFromNSImageRep (NSImageRep rep, int width, int height)
{
var rect = new RectangleF (0, 0, width, height);
var bitmap = rep as NSBitmapImageRep;
if (bitmap == null) {
using (var cgi = rep.AsCGImage (ref rect, null, null))
bitmap = new NSBitmapImageRep (cgi);
}
try {
byte[] data;
using (var tiff = bitmap.TiffRepresentation) {
data = new byte[tiff.Length];
System.Runtime.InteropServices.Marshal.Copy (tiff.Bytes, data, 0, data.Length);
}
int pw = bitmap.PixelsWide, ph = bitmap.PixelsHigh;
var pixbuf = new Gdk.Pixbuf (data, pw, ph);
// if one dimension matches, and the other is same or smaller, use as-is
if ((pw == width && ph <= height) || (ph == height && pw <= width))
return pixbuf;
// otherwise scale proportionally such that the largest dimension matches the desired size
if (pw == ph) {
pw = width;
ph = height;
} else if (pw > ph) {
ph = (int) (width * ((float) ph / pw));
pw = width;
} else {
pw = (int) (height * ((float) pw / ph));
ph = height;
}
var scaled = pixbuf.ScaleSimple (pw, ph, Gdk.InterpType.Bilinear);
pixbuf.Dispose ();
return scaled;
} finally {
if (bitmap != rep)
bitmap.Dispose ();
}
}
public static Gdk.Pixbuf GetPixbufFromNSImageRep (NSImageRep rep, int width, int height)
{
var rect = new RectangleF (0, 0, width, height);
var bitmap = rep as NSBitmapImageRep;
try {
if (bitmap == null) {
using (var cgi = rep.AsCGImage (ref rect, null, null)) {
if (cgi == null)
return null;
bitmap = new NSBitmapImageRep (cgi);
}
}
return GetPixbufFromNSBitmapImageRep (bitmap, width, height);
} finally {
if (bitmap != null)
bitmap.Dispose ();
}
}