def restore(self):
# Set the target layer as active.
main.documents.active.layers.set_active(self.layer, False)
main.gui.sidebar.layers.dump()
# Get diff and modified subpixbufs.
diffbuf = self.decompress(self.diff)
pixbuf = self.copy_area(self.layer.pixbuf)
# Calc original subpixbuf.
core.diff(
convert.pixbuf_pointer(pixbuf),
convert.pixbuf_pointer(diffbuf),
self.zone[2],
self.zone[3],
True)
# Copy original subpixbuf to layer.
pixbuf.copy_area(
0,
0,
self.zone[2],
self.zone[3],
self.layer.pixbuf,
self.zone[0],
self.zone[1])
# Redraw zone (at document offset level).
zone = copy.copy(self.zone)
zone[0] += self.layer.xpos
zone[1] += self.layer.ypos
main.documents.active.canvas.redraw(*zone)
def final(self, zone=None):
# If not zone given, zone is the entire layer.
if not zone: zone = [0, 0, self.layer.width, self.layer.height]
# Adjust zone to layer limits.
if zone[0] < 0:
zone[2] += zone[0]
zone[0] = 0
if zone[1] < 0:
zone[3] += zone[1]
zone[1] = 0
zone[2] = min(zone[2], self.layer.width - zone[0])
zone[3] = min(zone[3], self.layer.height - zone[1])
self.zone = zone
# Get original and modified subpixbufs.
pixbuf = self.copy_area(self.pixbuf)
pixbufmod = self.copy_area(self.layer.pixbuf)
# Calc diff subpixbuf.
core.diff(
convert.pixbuf_pointer(pixbuf),
convert.pixbuf_pointer(pixbufmod),
zone[2],
zone[3],
False)
# Compress diff subpixbuf.
self.diff = zlib.compress(pixbuf.get_pixels())
# Set propierties.
self.rowstride = pixbuf.get_rowstride()
self.bytes = len(self.diff)
# Free memory.
del(pixbuf)
del(pixbufmod)
del(self.pixbuf)
