mirror of https://github.com/python/cpython
305 lines
8.6 KiB
Python
305 lines
8.6 KiB
Python
# This script generates the Dialogs interface for Python.
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# It uses the "bgen" package to generate C code.
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# It execs the file dlggen.py which contain the function definitions
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# (dlggen.py was generated by dlgscan.py, scanning the <Dialogs.h> header file).
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from macsupport import *
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# Create the type objects
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DialogPtr = OpaqueByValueType("DialogPtr", "DlgObj")
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DialogRef = DialogPtr
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# An OptHandle is either a handle or None (in case NULL is passed in).
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# This is needed for GetDialogItem().
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OptHandle = OpaqueByValueType("Handle", "OptResObj")
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ModalFilterProcPtr = InputOnlyType("PyObject*", "O")
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ModalFilterProcPtr.passInput = lambda name: "Dlg_PassFilterProc(%s)" % name
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ModalFilterUPP = ModalFilterProcPtr
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RgnHandle = OpaqueByValueType("RgnHandle", "ResObj")
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TEHandle = OpaqueByValueType("TEHandle", "ResObj")
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CGrafPtr = OpaqueByValueType("CGrafPtr", "GrafObj")
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DITLMethod = Type("DITLMethod", "h")
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DialogItemIndex = Type("DialogItemIndex", "h")
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DialogItemType = Type("DialogItemType", "h")
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DialogItemIndexZeroBased = Type("DialogItemIndexZeroBased", "h")
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AlertType = Type("AlertType", "h")
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StringPtr = Str255
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EventMask = Type("EventMask", "H")
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includestuff = includestuff + """
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#ifdef WITHOUT_FRAMEWORKS
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#include <Dialogs.h>
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#else
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#include <Carbon/Carbon.h>
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#endif
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#ifdef USE_TOOLBOX_OBJECT_GLUE
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extern PyObject *_DlgObj_New(DialogRef);
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extern PyObject *_DlgObj_WhichDialog(DialogRef);
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extern int _DlgObj_Convert(PyObject *, DialogRef *);
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#define DlgObj_New _DlgObj_New
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#define DlgObj_WhichDialog _DlgObj_WhichDialog
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#define DlgObj_Convert _DlgObj_Convert
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#endif
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#if !ACCESSOR_CALLS_ARE_FUNCTIONS
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#define GetDialogTextEditHandle(dlg) (((DialogPeek)(dlg))->textH)
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#define SetPortDialogPort(dlg) SetPort(dlg)
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#define GetDialogPort(dlg) ((CGrafPtr)(dlg))
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#define GetDialogFromWindow(win) ((DialogRef)(win))
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#endif
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/* XXX Shouldn't this be a stack? */
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static PyObject *Dlg_FilterProc_callback = NULL;
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static pascal Boolean Dlg_UnivFilterProc(DialogPtr dialog,
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EventRecord *event,
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short *itemHit)
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{
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Boolean rv;
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PyObject *args, *res;
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PyObject *callback = Dlg_FilterProc_callback;
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if (callback == NULL)
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return 0; /* Default behavior */
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Dlg_FilterProc_callback = NULL; /* We'll restore it when call successful */
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args = Py_BuildValue("O&O&", DlgObj_WhichDialog, dialog, PyMac_BuildEventRecord, event);
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if (args == NULL)
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res = NULL;
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else {
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res = PyEval_CallObject(callback, args);
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Py_DECREF(args);
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}
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if (res == NULL) {
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PySys_WriteStderr("Exception in Dialog Filter\\n");
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PyErr_Print();
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*itemHit = -1; /* Fake return item */
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return 1; /* We handled it */
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}
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else {
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Dlg_FilterProc_callback = callback;
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if (PyInt_Check(res)) {
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*itemHit = PyInt_AsLong(res);
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rv = 1;
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}
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else
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rv = PyObject_IsTrue(res);
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}
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Py_DECREF(res);
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return rv;
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}
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static ModalFilterUPP
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Dlg_PassFilterProc(PyObject *callback)
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{
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PyObject *tmp = Dlg_FilterProc_callback;
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static ModalFilterUPP UnivFilterUpp = NULL;
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Dlg_FilterProc_callback = NULL;
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if (callback == Py_None) {
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Py_XDECREF(tmp);
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return NULL;
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}
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Py_INCREF(callback);
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Dlg_FilterProc_callback = callback;
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Py_XDECREF(tmp);
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if ( UnivFilterUpp == NULL )
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UnivFilterUpp = NewModalFilterUPP(&Dlg_UnivFilterProc);
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return UnivFilterUpp;
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}
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static PyObject *Dlg_UserItemProc_callback = NULL;
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static pascal void Dlg_UnivUserItemProc(DialogPtr dialog,
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short item)
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{
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PyObject *args, *res;
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if (Dlg_UserItemProc_callback == NULL)
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return; /* Default behavior */
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Dlg_FilterProc_callback = NULL; /* We'll restore it when call successful */
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args = Py_BuildValue("O&h", DlgObj_WhichDialog, dialog, item);
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if (args == NULL)
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res = NULL;
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else {
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res = PyEval_CallObject(Dlg_UserItemProc_callback, args);
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Py_DECREF(args);
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}
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if (res == NULL) {
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PySys_WriteStderr("Exception in Dialog UserItem proc\\n");
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PyErr_Print();
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}
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Py_XDECREF(res);
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return;
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}
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#if 0
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/*
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** Treating DialogObjects as WindowObjects is (I think) illegal under Carbon.
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** However, as they are still identical under MacOS9 Carbon this is a problem, even
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** if we neatly call GetDialogWindow() at the right places: there's one refcon field
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** and it points to the DialogObject, so WinObj_WhichWindow will smartly return the
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** dialog object, and therefore we still don't have a WindowObject.
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** I'll leave the chaining code in place for now, with this comment to warn the
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** unsuspecting victims (i.e. me, probably, in a few weeks:-)
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*/
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extern PyMethodChain WinObj_chain;
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#endif
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"""
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finalstuff = finalstuff + """
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/* Return the WindowPtr corresponding to a DialogObject */
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#if 0
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WindowPtr
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DlgObj_ConvertToWindow(PyObject *self)
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{
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if ( DlgObj_Check(self) )
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return GetDialogWindow(((DialogObject *)self)->ob_itself);
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return NULL;
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}
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#endif
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/* Return the object corresponding to the dialog, or None */
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PyObject *
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DlgObj_WhichDialog(DialogPtr d)
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{
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PyObject *it;
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if (d == NULL) {
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it = Py_None;
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Py_INCREF(it);
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} else {
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WindowPtr w = GetDialogWindow(d);
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it = (PyObject *) GetWRefCon(w);
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if (it == NULL || ((DialogObject *)it)->ob_itself != d || !DlgObj_Check(it)) {
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#if 0
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/* Should do this, but we don't have an ob_freeit for dialogs yet. */
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it = WinObj_New(w);
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((WindowObject *)it)->ob_freeit = NULL;
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#else
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it = Py_None;
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Py_INCREF(it);
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#endif
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} else {
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Py_INCREF(it);
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}
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}
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return it;
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}
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"""
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initstuff = initstuff + """
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PyMac_INIT_TOOLBOX_OBJECT_NEW(DialogPtr, DlgObj_New);
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PyMac_INIT_TOOLBOX_OBJECT_NEW(DialogPtr, DlgObj_WhichDialog);
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PyMac_INIT_TOOLBOX_OBJECT_CONVERT(DialogPtr, DlgObj_Convert);
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"""
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# Define a class which specializes our object definition
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class MyObjectDefinition(GlobalObjectDefinition):
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def __init__(self, name, prefix = None, itselftype = None):
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GlobalObjectDefinition.__init__(self, name, prefix, itselftype)
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## This won't work in Carbon, so we disable it for all MacPythons:-(
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## But see the comment above:-((
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## self.basechain = "&WinObj_chain"
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def outputInitStructMembers(self):
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GlobalObjectDefinition.outputInitStructMembers(self)
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Output("SetWRefCon(GetDialogWindow(itself), (long)it);")
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def outputCheckNewArg(self):
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Output("if (itself == NULL) return Py_None;")
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def outputCheckConvertArg(self):
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Output("if (v == Py_None) { *p_itself = NULL; return 1; }")
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Output("if (PyInt_Check(v)) { *p_itself = (DialogPtr)PyInt_AsLong(v);")
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Output(" return 1; }")
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def outputCompare(self):
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Output()
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Output("static int %s_compare(%s *self, %s *other)", self.prefix, self.objecttype, self.objecttype)
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OutLbrace()
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Output("if ( self->ob_itself > other->ob_itself ) return 1;")
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Output("if ( self->ob_itself < other->ob_itself ) return -1;")
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Output("return 0;")
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OutRbrace()
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def outputHash(self):
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Output()
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Output("static int %s_hash(%s *self)", self.prefix, self.objecttype)
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OutLbrace()
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Output("return (int)self->ob_itself;")
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OutRbrace()
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def outputFreeIt(self, itselfname):
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Output("DisposeDialog(%s);", itselfname)
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# Create the generator groups and link them
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module = MacModule('_Dlg', 'Dlg', includestuff, finalstuff, initstuff)
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object = MyObjectDefinition('Dialog', 'DlgObj', 'DialogPtr')
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module.addobject(object)
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# Create the generator classes used to populate the lists
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Function = OSErrFunctionGenerator
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Method = OSErrMethodGenerator
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# Create and populate the lists
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functions = []
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methods = []
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execfile("dlggen.py")
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# add the populated lists to the generator groups
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for f in functions: module.add(f)
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for f in methods: object.add(f)
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# Some methods that are currently macro's in C, but will be real routines
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# in MacOS 8.
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##f = Method(ExistingWindowPtr, 'GetDialogWindow', (DialogRef, 'dialog', InMode))
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##object.add(f)
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##f = Method(SInt16, 'GetDialogDefaultItem', (DialogRef, 'dialog', InMode))
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##object.add(f)
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##f = Method(SInt16, 'GetDialogCancelItem', (DialogRef, 'dialog', InMode))
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##object.add(f)
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##f = Method(SInt16, 'GetDialogKeyboardFocusItem', (DialogRef, 'dialog', InMode))
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##object.add(f)
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f = Method(void, 'SetGrafPortOfDialog', (DialogRef, 'dialog', InMode),
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condition='#if !TARGET_API_MAC_CARBON')
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object.add(f)
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setuseritembody = """
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PyObject *new = NULL;
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if (!PyArg_ParseTuple(_args, "|O", &new))
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return NULL;
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if (Dlg_UserItemProc_callback && new && new != Py_None) {
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PyErr_SetString(Dlg_Error, "Another UserItemProc is already installed");
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return NULL;
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}
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if (new == NULL || new == Py_None) {
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new = NULL;
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_res = Py_None;
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Py_INCREF(Py_None);
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} else {
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Py_INCREF(new);
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_res = Py_BuildValue("O&", ResObj_New, (Handle)NewUserItemUPP(Dlg_UnivUserItemProc));
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}
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Dlg_UserItemProc_callback = new;
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return _res;
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"""
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f = ManualGenerator("SetUserItemHandler", setuseritembody)
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module.add(f)
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# generate output
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SetOutputFileName('_Dlgmodule.c')
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module.generate()
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