Staging
v0.5.1
v0.5.1
https://github.com/python/cpython
Tip revision: 74f4bd53e03ded8408bcc2de67cf0f5a4ac5b1a1 authored by Barry Warsaw on 23 February 2012, 15:59:38 UTC
Bump some more copyright years (as per PEP 101), since this is the first
Bump some more copyright years (as per PEP 101), since this is the first
Tip revision: 74f4bd5
dlgsupport.py
# This script generates the Dialogs interface for Python.
# It uses the "bgen" package to generate C code.
# It execs the file dlggen.py which contain the function definitions
# (dlggen.py was generated by dlgscan.py, scanning the <Dialogs.h> header file).
from macsupport import *
# Create the type objects
DialogPtr = OpaqueByValueType("DialogPtr", "DlgObj")
DialogRef = DialogPtr
# An OptHandle is either a handle or None (in case NULL is passed in).
# This is needed for GetDialogItem().
OptHandle = OpaqueByValueType("Handle", "OptResObj")
ModalFilterProcPtr = InputOnlyType("PyObject*", "O")
ModalFilterProcPtr.passInput = lambda name: "Dlg_PassFilterProc(%s)" % name
ModalFilterUPP = ModalFilterProcPtr
RgnHandle = OpaqueByValueType("RgnHandle", "ResObj")
TEHandle = OpaqueByValueType("TEHandle", "ResObj")
CGrafPtr = OpaqueByValueType("CGrafPtr", "GrafObj")
DITLMethod = Type("DITLMethod", "h")
DialogItemIndex = Type("DialogItemIndex", "h")
DialogItemType = Type("DialogItemType", "h")
DialogItemIndexZeroBased = Type("DialogItemIndexZeroBased", "h")
AlertType = Type("AlertType", "h")
StringPtr = Str255
EventMask = Type("EventMask", "H")
includestuff = includestuff + """
#include <Carbon/Carbon.h>
#ifdef USE_TOOLBOX_OBJECT_GLUE
extern PyObject *_DlgObj_New(DialogRef);
extern PyObject *_DlgObj_WhichDialog(DialogRef);
extern int _DlgObj_Convert(PyObject *, DialogRef *);
#define DlgObj_New _DlgObj_New
#define DlgObj_WhichDialog _DlgObj_WhichDialog
#define DlgObj_Convert _DlgObj_Convert
#endif
/* XXX Shouldn't this be a stack? */
static PyObject *Dlg_FilterProc_callback = NULL;
static pascal Boolean Dlg_UnivFilterProc(DialogPtr dialog,
EventRecord *event,
short *itemHit)
{
Boolean rv;
PyObject *args, *res;
PyObject *callback = Dlg_FilterProc_callback;
if (callback == NULL)
return 0; /* Default behavior */
Dlg_FilterProc_callback = NULL; /* We'll restore it when call successful */
args = Py_BuildValue("O&O&", DlgObj_WhichDialog, dialog, PyMac_BuildEventRecord, event);
if (args == NULL)
res = NULL;
else {
res = PyEval_CallObject(callback, args);
Py_DECREF(args);
}
if (res == NULL) {
PySys_WriteStderr("Exception in Dialog Filter\\n");
PyErr_Print();
*itemHit = -1; /* Fake return item */
return 1; /* We handled it */
}
else {
Dlg_FilterProc_callback = callback;
if (PyInt_Check(res)) {
*itemHit = PyInt_AsLong(res);
rv = 1;
}
else
rv = PyObject_IsTrue(res);
}
Py_DECREF(res);
return rv;
}
static ModalFilterUPP
Dlg_PassFilterProc(PyObject *callback)
{
PyObject *tmp = Dlg_FilterProc_callback;
static ModalFilterUPP UnivFilterUpp = NULL;
Dlg_FilterProc_callback = NULL;
if (callback == Py_None) {
Py_XDECREF(tmp);
return NULL;
}
Py_INCREF(callback);
Dlg_FilterProc_callback = callback;
Py_XDECREF(tmp);
if ( UnivFilterUpp == NULL )
UnivFilterUpp = NewModalFilterUPP(&Dlg_UnivFilterProc);
return UnivFilterUpp;
}
static PyObject *Dlg_UserItemProc_callback = NULL;
static pascal void Dlg_UnivUserItemProc(DialogPtr dialog,
short item)
{
PyObject *args, *res;
if (Dlg_UserItemProc_callback == NULL)
return; /* Default behavior */
Dlg_FilterProc_callback = NULL; /* We'll restore it when call successful */
args = Py_BuildValue("O&h", DlgObj_WhichDialog, dialog, item);
if (args == NULL)
res = NULL;
else {
res = PyEval_CallObject(Dlg_UserItemProc_callback, args);
Py_DECREF(args);
}
if (res == NULL) {
PySys_WriteStderr("Exception in Dialog UserItem proc\\n");
PyErr_Print();
}
Py_XDECREF(res);
return;
}
#if 0
/*
** Treating DialogObjects as WindowObjects is (I think) illegal under Carbon.
** However, as they are still identical under MacOS9 Carbon this is a problem, even
** if we neatly call GetDialogWindow() at the right places: there's one refcon field
** and it points to the DialogObject, so WinObj_WhichWindow will smartly return the
** dialog object, and therefore we still don't have a WindowObject.
** I'll leave the chaining code in place for now, with this comment to warn the
** unsuspecting victims (i.e. me, probably, in a few weeks:-)
*/
extern PyMethodChain WinObj_chain;
#endif
"""
finalstuff = finalstuff + """
/* Return the WindowPtr corresponding to a DialogObject */
#if 0
WindowPtr
DlgObj_ConvertToWindow(PyObject *self)
{
if ( DlgObj_Check(self) )
return GetDialogWindow(((DialogObject *)self)->ob_itself);
return NULL;
}
#endif
/* Return the object corresponding to the dialog, or None */
PyObject *
DlgObj_WhichDialog(DialogPtr d)
{
PyObject *it;
if (d == NULL) {
it = Py_None;
Py_INCREF(it);
} else {
WindowPtr w = GetDialogWindow(d);
it = (PyObject *) GetWRefCon(w);
if (it == NULL || ((DialogObject *)it)->ob_itself != d || !DlgObj_Check(it)) {
#if 0
/* Should do this, but we don't have an ob_freeit for dialogs yet. */
it = WinObj_New(w);
((WindowObject *)it)->ob_freeit = NULL;
#else
it = Py_None;
Py_INCREF(it);
#endif
} else {
Py_INCREF(it);
}
}
return it;
}
"""
initstuff = initstuff + """
PyMac_INIT_TOOLBOX_OBJECT_NEW(DialogPtr, DlgObj_New);
PyMac_INIT_TOOLBOX_OBJECT_NEW(DialogPtr, DlgObj_WhichDialog);
PyMac_INIT_TOOLBOX_OBJECT_CONVERT(DialogPtr, DlgObj_Convert);
"""
# Define a class which specializes our object definition
class MyObjectDefinition(PEP253Mixin, GlobalObjectDefinition):
def __init__(self, name, prefix = None, itselftype = None):
GlobalObjectDefinition.__init__(self, name, prefix, itselftype)
## This won't work in Carbon, so we disable it for all MacPythons:-(
## But see the comment above:-((
## self.basechain = "&WinObj_chain"
def outputInitStructMembers(self):
GlobalObjectDefinition.outputInitStructMembers(self)
Output("SetWRefCon(GetDialogWindow(itself), (long)it);")
def outputCheckNewArg(self):
Output("if (itself == NULL) { Py_INCREF(Py_None); return Py_None; }")
def outputCheckConvertArg(self):
Output("if (v == Py_None) { *p_itself = NULL; return 1; }")
Output("if (PyInt_Check(v)) { *p_itself = (DialogPtr)PyInt_AsLong(v);")
Output(" return 1; }")
def outputCompare(self):
Output()
Output("static int %s_compare(%s *self, %s *other)", self.prefix, self.objecttype, self.objecttype)
OutLbrace()
Output("if ( self->ob_itself > other->ob_itself ) return 1;")
Output("if ( self->ob_itself < other->ob_itself ) return -1;")
Output("return 0;")
OutRbrace()
def outputHash(self):
Output()
Output("static int %s_hash(%s *self)", self.prefix, self.objecttype)
OutLbrace()
Output("return (int)self->ob_itself;")
OutRbrace()
def outputFreeIt(self, itselfname):
Output("DisposeDialog(%s);", itselfname)
# Create the generator groups and link them
module = MacModule('_Dlg', 'Dlg', includestuff, finalstuff, initstuff)
object = MyObjectDefinition('Dialog', 'DlgObj', 'DialogPtr')
module.addobject(object)
# Create the generator classes used to populate the lists
Function = OSErrWeakLinkFunctionGenerator
Method = OSErrWeakLinkMethodGenerator
# Create and populate the lists
functions = []
methods = []
execfile("dlggen.py")
# add the populated lists to the generator groups
for f in functions: module.add(f)
for f in methods: object.add(f)
setuseritembody = """
PyObject *new = NULL;
if (!PyArg_ParseTuple(_args, "|O", &new))
return NULL;
if (Dlg_UserItemProc_callback && new && new != Py_None) {
PyErr_SetString(Dlg_Error, "Another UserItemProc is already installed");
return NULL;
}
if (new == NULL || new == Py_None) {
new = NULL;
_res = Py_None;
Py_INCREF(Py_None);
} else {
Py_INCREF(new);
_res = Py_BuildValue("O&", ResObj_New, (Handle)NewUserItemUPP(Dlg_UnivUserItemProc));
}
Dlg_UserItemProc_callback = new;
return _res;
"""
f = ManualGenerator("SetUserItemHandler", setuseritembody)
module.add(f)
# generate output
SetOutputFileName('_Dlgmodule.c')
module.generate()