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
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
|
# 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 = 'TE' # 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 <Carbon/Carbon.h>
#ifdef USE_TOOLBOX_OBJECT_GLUE
extern PyObject *_TEObj_New(TEHandle);
extern int _TEObj_Convert(PyObject *, TEHandle *);
#define TEObj_New _TEObj_New
#define TEObj_Convert _TEObj_Convert
#endif
#define as_TE(h) ((TEHandle)h)
#define as_Resource(teh) ((Handle)teh)
/*
** Parse/generate TextStyle records
*/
static PyObject *
TextStyle_New(TextStylePtr itself)
{
return Py_BuildValue("lllO&", (long)itself->tsFont, (long)itself->tsFace, (long)itself->tsSize, QdRGB_New,
&itself->tsColor);
}
static int
TextStyle_Convert(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;
}
"""
initstuff = initstuff + """
PyMac_INIT_TOOLBOX_OBJECT_NEW(TEHandle, TEObj_New);
PyMac_INIT_TOOLBOX_OBJECT_CONVERT(TEHandle, TEObj_Convert);
"""
class TEMethodGenerator(OSErrWeakLinkMethodGenerator):
"""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(PEP253Mixin, GlobalObjectDefinition):
# XXXX Could be subtype of Resource
# Attributes that can be set.
getsetlist = [
(
'destRect',
'return Py_BuildValue("O&", PyMac_BuildRect, &(*self->ob_itself)->destRect);',
None,
'Destination rectangle'
), (
'viewRect',
'return Py_BuildValue("O&", PyMac_BuildRect, &(*self->ob_itself)->viewRect);',
None,
'Viewing rectangle'
), (
'selRect',
'return Py_BuildValue("O&", PyMac_BuildRect, &(*self->ob_itself)->selRect);',
None,
'Selection rectangle'
), (
'lineHeight',
'return Py_BuildValue("h", (*self->ob_itself)->lineHeight);',
None,
'Height of a line'
), (
'fontAscent',
'return Py_BuildValue("h", (*self->ob_itself)->fontAscent);',
None,
'Ascent of a line'
), (
"selPoint",
'return Py_BuildValue("O&", PyMac_BuildPoint, (*self->ob_itself)->selPoint);',
None,
'Selection Point'
), (
'selStart',
'return Py_BuildValue("h", (*self->ob_itself)->selStart);',
None,
'Start of selection'
), (
'selEnd',
'return Py_BuildValue("h", (*self->ob_itself)->selEnd);',
None,
'End of selection'
), (
'active',
'return Py_BuildValue("h", (*self->ob_itself)->active);',
None,
'TBD'
), (
'just',
'return Py_BuildValue("h", (*self->ob_itself)->just);',
None,
'Justification'
), (
'teLength',
'return Py_BuildValue("h", (*self->ob_itself)->teLength);',
None,
'TBD'
), (
'txFont',
'return Py_BuildValue("h", (*self->ob_itself)->txFont);',
None,
'Current font'
), (
'txFace',
'return Py_BuildValue("h", (*self->ob_itself)->txFace);',
None,
'Current font variant'
), (
'txMode',
'return Py_BuildValue("h", (*self->ob_itself)->txMode);',
None,
'Current text-drawing mode'
), (
'txSize',
'return Py_BuildValue("h", (*self->ob_itself)->txSize);',
None,
'Current font size'
), (
'nLines',
'return Py_BuildValue("h", (*self->ob_itself)->nLines);',
None,
'TBD'
)]
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)
# 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 = 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()
|
