pymml: add MMLException, add memory management

Projects/libmml/pymml/mml.py

@@ -4,6 +4,7 @@ from ctypes import *
 from mmlmouse import Mouse
 from mmlcolor import Color
 from time import sleep
+from mmltypes import PINTEGER
 
 class MMLCoreException(Exception):
     def __init__(self, err):
@@ -25,6 +26,9 @@ class MMLCore(object):
         self.dll.get_last_error.restype = c_char_p
         self.dll.get_last_error.argtypes = None
 
+        self.dll.free_ptr.restype = c_bool
+        self.dll.free_ptr.argtypes = [c_void_p]
+
         if self.dll.init() != 0:
             del self.dll
             raise MMLCoreException("Could not initialize the DLL")
@@ -35,6 +39,10 @@ class MMLCore(object):
         del t
         return s
 
+    def free(self, ptr):
+        _ptr = cast(ptr, c_void_p)
+        self.dll.free_ptr(_ptr)
+
     def __del__(self):
         del self.dll
 
@@ -50,12 +58,10 @@ if __name__ == '__main__':
     c = Color(DLL, client)
 
 
-    ret = c.find((0, 0, 100000, 10000), 0)
-
     ret = c.find((0, 0, 100, 100), 0)
     print ret
 
-    ret = c.findAll((0, 0, 100, 100), 0)
+    ret = c.findAll((0, 0, 100, 100), 0, tol=100)
     print ret
 
     m = Mouse(DLL, client)

Projects/libmml/pymml/mmlcolor.py

@@ -2,6 +2,7 @@ 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
@@ -10,9 +11,9 @@ The Color Class
 This class does the color finding.
 """
 
-class ColorException(Exception):
+class ColorException(MMLException):
     def __init__(self, err):
-        Exception.__init__(self, err)
+        MMLException.__init__(self, err)
 
 
 # FIXME: Complete...
@@ -48,7 +49,6 @@ class Color(object):
         if ret is RESULT_OK:
             return (x, y)
         elif ret is RESULT_ERROR:
-            print self._mc
             raise ColorException(self._mc.get_last_error())
 
         return None
@@ -59,7 +59,6 @@ class Color(object):
             returned are all the matching points
         """
         ptr, _len = PPOINT(), c_int(42)
-        print type(_len)
         if tol is 0:
             self._mc.dll.find_colors(self._cli, byref(ptr), byref(_len),
                     color, *box)
@@ -67,12 +66,13 @@ class Color(object):
             self._mc.dll.find_colors_tolerance(self._cli, byref(ptr),
                     byref(_len), color, tol, *box)
 
-#        print 'Length:', _len
-#        for x in range(_len.value):
-#            print ptr[x].x
-#        print ptr
-        # FIXME return python list?
-        return ''
+        # 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

Projects/libmml/pymml/mmltypes.py

@@ -10,6 +10,11 @@ class POINT(Structure):
     _fields_ = [('x', c_int),
                 ('y', c_int)]
 
+class MMLException(Exception):
+    def __init__(self, err):
+        Exception.__init__(self, err)
+
+
 #class PascalArray(object):
 #    """
 #        PascalArray is a class that allows one to easily use a Pascal-style