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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
# 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 = 'TextEdit.h' # The Apple header file
MODNAME = 'TE' # The name of the module
OBJECTNAME = 'TE' # The basic name of the objects used here
KIND = 'Handle' # Usually 'Ptr' or 'Handle'
# The following is *usually* unchanged but may still require tuning
MODPREFIX = MODNAME # The prefix for module-wide routines
OBJECTTYPE = "TEHandle" # The C type used to represent them
OBJECTPREFIX = MODPREFIX + 'Obj' # The prefix for object methods
INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
OUTPUTFILE = MODNAME + "module.c" # The file generated by this program
from macsupport import *
# Create the type objects
TEHandle = OpaqueByValueType("TEHandle", "TEObj")
CharsHandle = OpaqueByValueType("CharsHandle", "ResObj")
Handle = OpaqueByValueType("Handle", "ResObj")
StScrpHandle = OpaqueByValueType("StScrpHandle", "ResObj")
TEStyleHandle = OpaqueByValueType("TEStyleHandle", "ResObj")
RgnHandle = OpaqueByValueType("RgnHandle", "ResObj")
TextStyle = OpaqueType("TextStyle", "TextStyle")
TextStyle_ptr = TextStyle
includestuff = includestuff + """
#include <%s>""" % MACHEADERFILE + """
#define as_TE(h) ((TEHandle)h)
#define as_Resource(teh) ((Handle)teh)
/* Exported by Qdmodule.c: */
extern PyObject *QdRGB_New(RGBColor *);
extern int QdRGB_Convert(PyObject *, RGBColor *);
/*
** Parse/generate TextStyle records
*/
PyObject *TextStyle_New(itself)
TextStylePtr itself;
{
return Py_BuildValue("lllO&", (long)itself->tsFont, (long)itself->tsFace, (long)itself->tsSize, QdRGB_New,
&itself->tsColor);
}
TextStyle_Convert(v, p_itself)
PyObject *v;
TextStylePtr p_itself;
{
long font, face, size;
if( !PyArg_ParseTuple(v, "lllO&", &font, &face, &size, QdRGB_Convert, &p_itself->tsColor) )
return 0;
p_itself->tsFont = (short)font;
p_itself->tsFace = (Style)face;
p_itself->tsSize = (short)size;
return 1;
}
"""
class TEMethodGenerator(OSErrMethodGenerator):
"""Similar to MethodGenerator, but has self as last argument"""
def parseArgumentList(self, args):
args, a0 = args[:-1], args[-1]
t0, n0, m0 = a0
if m0 != InMode:
raise ValueError, "method's 'self' must be 'InMode'"
self.itself = Variable(t0, "_self->ob_itself", SelfMode)
FunctionGenerator.parseArgumentList(self, args)
self.argumentList.append(self.itself)
class MyObjectDefinition(GlobalObjectDefinition):
def outputCheckNewArg(self):
Output("""if (itself == NULL) {
PyErr_SetString(TE_Error,"Cannot create null TE");
return NULL;
}""")
def outputFreeIt(self, itselfname):
Output("TEDispose(%s);", itselfname)
def outputGetattrHook(self):
Output("""
if( strcmp(name, "destRect") == 0 )
return Py_BuildValue("O&", PyMac_BuildRect,
&(*self->ob_itself)->destRect);
if( strcmp(name, "viewRect") == 0 )
return Py_BuildValue("O&", PyMac_BuildRect,
&(*self->ob_itself)->viewRect);
if( strcmp(name, "selRect") == 0 )
return Py_BuildValue("O&", PyMac_BuildRect,
&(*self->ob_itself)->selRect);
if( strcmp(name, "lineHeight") == 0 )
return Py_BuildValue("h", (*self->ob_itself)->lineHeight);
if( strcmp(name, "fontAscent") == 0 )
return Py_BuildValue("h", (*self->ob_itself)->fontAscent);
if( strcmp(name, "selPoint") == 0 )
return Py_BuildValue("O&", PyMac_BuildPoint,
(*self->ob_itself)->selPoint);
if( strcmp(name, "selStart") == 0 )
return Py_BuildValue("h", (*self->ob_itself)->selStart);
if( strcmp(name, "selEnd") == 0 )
return Py_BuildValue("h", (*self->ob_itself)->selEnd);
if( strcmp(name, "active") == 0 )
return Py_BuildValue("h", (*self->ob_itself)->active);
if( strcmp(name, "just") == 0 )
return Py_BuildValue("h", (*self->ob_itself)->just);
if( strcmp(name, "teLength") == 0 )
return Py_BuildValue("h", (*self->ob_itself)->teLength);
if( strcmp(name, "txFont") == 0 )
return Py_BuildValue("h", (*self->ob_itself)->txFont);
if( strcmp(name, "txFace") == 0 )
return Py_BuildValue("h", (*self->ob_itself)->txFace);
if( strcmp(name, "txMode") == 0 )
return Py_BuildValue("h", (*self->ob_itself)->txMode);
if( strcmp(name, "txSize") == 0 )
return Py_BuildValue("h", (*self->ob_itself)->txSize);
if( strcmp(name, "nLines") == 0 )
return Py_BuildValue("h", (*self->ob_itself)->nLines);
""")
# 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 = OSErrFunctionGenerator
Method = TEMethodGenerator
# Create and populate the lists
functions = []
methods = []
execfile(INPUTFILE)
# Converter from/to handle
f = Function(TEHandle, 'as_TE', (Handle, 'h', InMode))
functions.append(f)
f = Method(Handle, 'as_Resource', (TEHandle, 'teh', InMode))
methods.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()
|
