1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
# This script generates a Python interface for an Apple Macintosh Manager.
# It uses the "bgen" package to generate C code.
# The function specifications are generated by scanning the mamager's header file,
# using the "scantools" package (customized for this particular manager).
import string
# Declarations that change for each manager
MACHEADERFILE = 'QDOffscreen.h' # The Apple header file
MODNAME = '_Qdoffs' # The name of the module
OBJECTNAME = 'GWorld' # The basic name of the objects used here
# The following is *usually* unchanged but may still require tuning
MODPREFIX = 'Qdoffs' # The prefix for module-wide routines
OBJECTTYPE = OBJECTNAME + 'Ptr' # The C type used to represent them
OBJECTPREFIX = OBJECTNAME + 'Obj' # The prefix for object methods
INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
#EDITFILE = string.lower(MODPREFIX) + 'edit.py' # The manual definitions
OUTPUTFILE = MODNAME + "module.c" # The file generated by this program
from macsupport import *
# Create the type objects
GWorldPtr = OpaqueByValueType(OBJECTTYPE, OBJECTPREFIX)
GWorldFlags = Type("GWorldFlags", "l")
GDHandle = OpaqueByValueType("GDHandle", "ResObj")
OptGDHandle = OpaqueByValueType("GDHandle", "OptResObj")
CTabHandle = OpaqueByValueType("CTabHandle", "OptResObj")
PixPatHandle = OpaqueByValueType("PixPatHandle", "ResObj")
PixMapHandle = OpaqueByValueType("PixMapHandle", "ResObj")
CGrafPtr = OpaqueByValueType("CGrafPtr", "GrafObj")
GrafPtr = OpaqueByValueType("GrafPtr", "GrafObj")
QDErr = OSErrType("QDErr", 'h')
includestuff = includestuff + """
#include <Carbon/Carbon.h>
#ifdef USE_TOOLBOX_OBJECT_GLUE
extern PyObject *_GWorldObj_New(GWorldPtr);
extern int _GWorldObj_Convert(PyObject *, GWorldPtr *);
#define GWorldObj_New _GWorldObj_New
#define GWorldObj_Convert _GWorldObj_Convert
#endif
#define as_GrafPtr(gworld) ((GrafPtr)(gworld))
"""
initstuff = initstuff + """
PyMac_INIT_TOOLBOX_OBJECT_NEW(GWorldPtr, GWorldObj_New);
PyMac_INIT_TOOLBOX_OBJECT_CONVERT(GWorldPtr, GWorldObj_Convert);
"""
class MyObjectDefinition(PEP253Mixin, GlobalObjectDefinition):
# XXXX Should inherit from GrafPtr?
def outputCheckNewArg(self):
Output("if (itself == NULL) return PyMac_Error(resNotFound);")
## def outputInitStructMembers(self):
## GlobalObjectDefinition.outputInitStructMembers(self)
## Output("SetWRefCon(itself, (long)it);")
## def outputCheckConvertArg(self):
## OutLbrace("if (DlgObj_Check(v))")
## Output("*p_itself = ((WindowObject *)v)->ob_itself;")
## Output("return 1;")
## OutRbrace()
## Out("""
## if (v == Py_None) { *p_itself = NULL; return 1; }
## if (PyInt_Check(v)) { *p_itself = (WindowPtr)PyInt_AsLong(v); return 1; }
## """)
def outputFreeIt(self, itselfname):
Output("DisposeGWorld(%s);", itselfname)
# From here on it's basically all boiler plate...
# Create the generator groups and link them
module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)
module.addobject(object)
# Create the generator classes used to populate the lists
Function = OSErrWeakLinkFunctionGenerator
Method = OSErrWeakLinkMethodGenerator
# Create and populate the lists
functions = []
methods = []
exec(open(INPUTFILE).read())
# A method to convert a GWorldPtr to a GrafPtr
f = Method(GrafPtr, 'as_GrafPtr', (GWorldPtr, 'p', InMode))
methods.append(f)
#
# Manual generator: get data out of a pixmap
pixmapgetbytes_body = """
PixMapHandle pm;
int from, length;
char *cp;
if ( !PyArg_ParseTuple(_args, "O&ii", ResObj_Convert, &pm, &from, &length) )
return NULL;
cp = GetPixBaseAddr(pm)+from;
_res = PyString_FromStringAndSize(cp, length);
return _res;
"""
f = ManualGenerator("GetPixMapBytes", pixmapgetbytes_body)
f.docstring = lambda: """(pixmap, int start, int size) -> string. Return bytes from the pixmap"""
functions.append(f)
# Manual generator: store data in a pixmap
pixmapputbytes_body = """
PixMapHandle pm;
int from, length;
char *cp, *icp;
if ( !PyArg_ParseTuple(_args, "O&is#", ResObj_Convert, &pm, &from, &icp, &length) )
return NULL;
cp = GetPixBaseAddr(pm)+from;
memcpy(cp, icp, length);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
"""
f = ManualGenerator("PutPixMapBytes", pixmapputbytes_body)
f.docstring = lambda: """(pixmap, int start, string data). Store bytes into the pixmap"""
functions.append(f)
# add the populated lists to the generator groups
# (in a different wordl the scan program would generate this)
for f in functions: module.add(f)
for f in methods: object.add(f)
# generate output (open the output file as late as possible)
SetOutputFileName(OUTPUTFILE)
module.generate()
|
