# 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 = 'Events.h'              # The Apple header file

MODNAME = '_Evt'                                # The name of the module

OBJECTNAME = 'Event'                    # The basic name of the objects used here

KIND = 'Record'                         # Usually 'Ptr' or 'Handle'

# The following is *usually* unchanged but may still require tuning

MODPREFIX = 'Evt'                       # The prefix for module-wide routines

OBJECTTYPE = OBJECTNAME + KIND          # 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

#WindowPeek = OpaqueByValueType("WindowPeek", OBJECTPREFIX)

RgnHandle = FakeType("(RgnHandle)0")

# XXXX Should be next, but this will break a lot of code...

# RgnHandle = OpaqueByValueType("RgnHandle", "OptResObj")

KeyMap = ArrayOutputBufferType("KeyMap")

##MacOSEventKind = Type("MacOSEventKind", "h") # Old-style

##MacOSEventMask = Type("MacOSEventMask", "h") # Old-style

EventMask = Type("EventMask", "H")

EventKind = Type("EventKind", "H")

includestuff = includestuff + """

#include <Carbon/Carbon.h>

"""

# From here on it's basically all boiler plate...

# Create the generator groups and link them

module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)

# Create the generator classes used to populate the lists

Function = OSErrWeakLinkFunctionGenerator

##Method = OSErrWeakLinkMethodGenerator

# Create and populate the lists

functions = []

execfile(INPUTFILE)

# Move TickCount here, for convenience

f = Function(UInt32, 'TickCount',

)

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)

WaitNextEvent_body = """

Boolean _rv;

EventMask eventMask;

EventRecord theEvent;

UInt32 sleep;

Handle mouseregion = (Handle)0;

if (!PyArg_ParseTuple(_args, "Hl|O&",

                      &eventMask,

                      &sleep,

                      OptResObj_Convert, &mouseregion))

        return NULL;

_rv = WaitNextEvent(eventMask,

                    &theEvent,

                    sleep,

                    (RgnHandle)mouseregion);

_res = Py_BuildValue("bO&",

                     _rv,

                     PyMac_BuildEventRecord, &theEvent);

return _res;

"""

f = ManualGenerator("WaitNextEvent", WaitNextEvent_body);

f.docstring = lambda: "(EventMask eventMask, UInt32 sleep [,RegionHandle]) -> (Boolean _rv, EventRecord theEvent)"

module.add(f)

# generate output (open the output file as late as possible)

SetOutputFileName(OUTPUTFILE)

module.generate()