def func(self, *args):
args = [self] + list(args)
res = fun(*args)
if not res:
if self.exception:
raise ImageMagickException(self.exception)
return bool(res)
def copyPixels(self, source, sx, sy, w, h, tx, ty):
exc = ExceptionInfo()
dest = lib.GetAuthenticPixels(self, tx, ty, w, h, exc)
if not dest:
raise ImageMagickException(exc)
src = lib.GetAuthenticPixels(source, sx, sy, w, h, exc)
if not src:
raise ImageMagickException(exc)
artype = ctypes.POINTER(PixelPacket * (w * h))
artype1 = PixelPacket * (w * h)
dest = ctypes.cast(dest, artype)
src = ctypes.cast(src, artype)
for i in range(w * h):
dest[0][i] = src[0][i]
if not lib.SyncAuthenticPixels(self, exc):
raise ImageMagickException(exc)
def func(self, *args):
exc = ExceptionInfo()
args = [self] + list(args) + [exc]
res = fun(*args)
if not res:
raise ImageMagickException(exc)
return Image(res)
def compare(self, other, metric):
dbl = (ctypes.c_double * 1)()
exp = ExceptionInfo()
img = CompareImageChannels(self, other, ChannelType.All, metric, dbl,
exp)
if not img:
raise ImageMagickException(exp)
return (dbl[0], Image(img))
def write(self, file):
if isinstance(file, str):
self.images[0].filename = file
if not lib.WriteImage(self.info, self.images[0]):
raise ImageMagickException(self.images[0].exception)
return True
else:
raise NotImplementedError
def write(self, file):
if isinstance(file, str):
inf = ImageInfo()
self.filename = file
if not lib.WriteImage(inf, self):
raise ImageMagickException(self.exception)
return True
else:
raise NotImplementedError
def create(C, width, height, color):
inf = ImageInfo()
res = lib.NewMagickImage(inf, width, height, ctypes.byref(color))
if not res:
raise ImageMagickException(inf.exception)
im = C(res)
im.setColorspace(ColorspaceType.RGB.value)
im.setBackgroundColor(color)
return im
def __enter__(self):
exc = ExceptionInfo()
px = lib.GetAuthenticPixels(self.im, self.x, self.y, self.w, self.h,
exc)
if not px:
raise ImageMagickException(exc)
self.px = ctypes.cast(px,
ctypes.POINTER(PixelPacket * (self.w * self.h)))
return self
def draw(self, string):
inf = DrawInfo()
data = string.encode('utf-8')
buf = ctypes.c_buffer(data)
inf.primitive = ctypes.cast(buf, ctypes.c_char_p)
try:
if not lib.DrawImage(self.value, inf):
raise ImageMagickException(self.exception)
finally:
inf.primitive = 0
def ping(C, file):
if isinstance(file, str):
inf = ImageInfo()
inf.filename = file
exinfo = ExceptionInfo()
res = lib.PingImage(inf, exinfo)
if not res:
raise ImageMagickException(exinfo)
return C(res)
else:
raise NotImplementedError
def tile(C, file, width, height):
if isinstance(file, str):
inf = ImageInfo()
file = 'tile:' + file
inf.size = "%dx%d" % (width, height)
inf.filename = file
try:
exinfo = ExceptionInfo()
res = lib.ReadImage(inf, exinfo)
if not res:
raise ImageMagickException(exinfo)
return C(res)
finally:
inf.size = 0
inf.file = 0
else:
raise NotImplementedError
def copy(self):
exc = ExceptionInfo()
res = lib.CloneImage(self, 0, 0, True, exc)
if not res:
raise ImageMagickException(exc)
return Image(res)
def display(self):
inf = ImageInfo()
res = lib.DisplayImages(inf, self)
if not res:
raise ImageMagickException(self.exception)