def load_from_data(self, data):
x, y, data = data
assert data.dtype == 'uint8'
h, w, channels = data.shape
s = pixbufsurface.Surface(x, y, w, h, alpha=True, data=data)
self._load_from_pixbufsurface(s)
def load_from_numpy(self, arr, x, y):
"""Loads tile data from a numpy array
:param arr: Array containing the pixel data
:type arr: numpy.ndarray of uint8, dimensions HxWx3 or HxWx4
:param x: X coordinate for the array
:param y: Y coordinate for the array
:returns: the dimensions of the loaded surface, as (x,y,w,h)
"""
h, w, channels = arr.shape
if h <= 0 or w <= 0:
return (x, y, w, h)
if arr.dtype == 'uint8':
s = pixbufsurface.Surface(x, y, w, h, data=arr)
self._load_from_pixbufsurface(s)
else:
raise ValueError("Only uint8 data is supported by MyPaintSurface")
return (x, y, w, h)