def rotate(self, angle=0):
"""does a looseless rotation of the given jpeg file"""
if os.name == 'nt' and self.pil != None:
del self.pil
x = self.pixelsX
y = self.pixelsY
logger.debug("Before rotation %i, x=%i, y=%i, scaledX=%i, scaledY=%i" % (angle, x, y, self.scaledPixbuffer.get_width(), self.scaledPixbuffer.get_height()))
if angle == 90:
if imageCache is not None:
Exiftran.rotate90(self.fn)
newPixbuffer = self.scaledPixbuffer.rotate_simple(gtk.gdk.PIXBUF_ROTATE_CLOCKWISE)
logger.debug("rotate 90 of %s" % newPixbuffer)
self.pixelsX = y
self.pixelsY = x
if self.metadata is not None:
self.metadata["Resolution"] = "%i x % i" % (y, x)
else:
Exiftran.rotate90(self.fn)
self.pixelsX = None
self.pixelsY = None
elif angle == 270:
if imageCache is not None:
Exiftran.rotate270(self.fn)
newPixbuffer = self.scaledPixbuffer.rotate_simple(gtk.gdk.PIXBUF_ROTATE_COUNTERCLOCKWISE)
logger.debug("rotate 270 of %s" % newPixbuffer)
self.pixelsX = y
self.pixelsY = x
if self.metadata is not None:
self.metadata["Resolution"] = "%i x % i" % (y, x)
else:
Exiftran.rotate270(self.fn)
self.pixelsX = None
self.pixelsY = None
elif angle == 180:
if imageCache is not None:
Exiftran.rotate180(self.fn)
newPixbuffer = self.scaledPixbuffer.rotate_simple(gtk.gdk.PIXBUF_ROTATE_UPSIDEDOWN)
logger.debug("rotate 270 of %s" % newPixbuffer)
else:
Exiftran.rotate180(self.fn)
self.pixelsX = None
self.pixelsY = None
else:
print "Erreur ! il n'est pas possible de faire une rotation de ce type sans perte de donnée."
if imageCache is not None:
self.scaledPixbuffer = newPixbuffer
imageCache[self.filename] = self
logger.debug("After rotation %i, x=%i, y=%i, scaledX=%i, scaledY=%i" % (angle, self.pixelsX, self.pixelsY, self.scaledPixbuffer.get_width(), self.scaledPixbuffer.get_height()))
