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Simba/Projects/libmml/pymml/mmlcolor.py
2010-09-12 15:01:42 +02:00

92 lines
2.8 KiB
Python

from ctypes import *
from mmltypes import isiterable
from mmltypes import POINT, PPOINT, PINTEGER
from mmltypes import RESULT_OK, RESULT_FALSE, RESULT_ERROR
from mmltypes import MMLException
"""
The Color Class
---------------
This class does the color finding.
"""
class ColorException(MMLException):
def __init__(self, err):
MMLException.__init__(self, err)
# FIXME: Complete...
class Color(object):
'''
The Color class.
'''
_mc = None
def __init__(self, MC, cli):
"""
Initialise the Color object.
"""
self._mc = MC
self._cli = cli
self._initialiseDLLFuncs()
def find(self, box, color, tol = 0):
"""
find a color in a box, with a specific tolerance.
returns a tuple of the x, y value of a matched color.
None if no color was found.
"""
x, y = (c_int(-1), c_int(-1))
if tol is 0:
ret = self._mc.dll.find_color(self._cli, byref(x), byref(y),
color, *box)
else:
ret = self._mc.dll.find_color_tolerance(self._cli, byref(x),
byref(y), color, tol, *box)
if ret is RESULT_OK:
return (x, y)
elif ret is RESULT_ERROR:
raise ColorException(self._mc.get_last_error())
return None
def findAll(self, box, color, tol = 0):
"""
find all colors in a box, with a specific tolerance.
returned are all the matching points
"""
ptr, _len = PPOINT(), c_int(42)
if tol is 0:
self._mc.dll.find_colors(self._cli, byref(ptr), byref(_len),
color, *box)
else:
self._mc.dll.find_colors_tolerance(self._cli, byref(ptr),
byref(_len), color, tol, *box)
# Construct list
l = [(ptr[x].x, ptr[x].y) for x in range(_len.value)]
# Free PPOINT
self._mc.free(ptr)
return l
def _initialiseDLLFuncs(self):
self._mc.dll.find_color.restype = c_int
self._mc.dll.find_color.argtypes = [c_ulong, PINTEGER, PINTEGER, c_int,
c_int, c_int, c_int, c_int]
self._mc.dll.find_color_tolerance.restype = c_int
self._mc.dll.find_color_tolerance.argtypes = [c_ulong, PINTEGER,
PINTEGER, c_int, c_int, c_int, c_int, c_int, c_int]
self._mc.dll.find_colors.restype = c_int
self._mc.dll.find_colors.argtypes = [c_ulong, POINTER(PPOINT),
POINTER(c_int), c_int, c_int, c_int, c_int, c_int]
self._mc.dll.find_colors_tolerance.restype = c_int
self._mc.dll.find_colors_tolerance.argtypes = [c_ulong,
POINTER(PPOINT), POINTER(c_int), c_int, c_int,
c_int, c_int, c_int, c_int]