cpython/Mac/Modules/qdoffs/qdoffssupport.py
Jack Jansen 9d8b96c850 pymactoolbox.h contains protoypes for all externally visible toolbox module
functions. Include it in stead of duplicating the declarations everywhere. Also
cleaned up toolbox module exports, and got rid of resNotFound error.
2000-07-14 22:16:45 +00:00

124 lines
4.1 KiB
Python

# 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 = MODNAME # 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 <%s>""" % MACHEADERFILE + """
#define as_GrafPtr(gworld) ((GrafPtr)(gworld))
"""
class MyObjectDefinition(GlobalObjectDefinition):
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 = OSErrFunctionGenerator
Method = OSErrMethodGenerator
# Create and populate the lists
functions = []
methods = []
execfile(INPUTFILE)
# 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;
return PyString_FromStringAndSize(cp, length);
"""
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);
return Py_None;
"""
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()