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# 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 = []
exec(open(INPUTFILE).read())
# 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()
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