/*********************************************************** Copyright (C) 1994 Steen Lumholt. Copyright 1994-1995 by Stichting Mathematisch Centrum, Amsterdam, The Netherlands. All Rights Reserved Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the names of Stichting Mathematisch Centrum or CWI or Corporation for National Research Initiatives or CNRI not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. While CWI is the initial source for this software, a modified version is made available by the Corporation for National Research Initiatives (CNRI) at the Internet address ftp://ftp.python.org. STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ******************************************************************/ /* _tkinter.c -- Interface to libtk.a and libtcl.a. */ /* TCL/TK VERSION INFO: Unix: Tcl/Tk 8.0 (even alpha or beta) or 7.6/4.2 are recommended. Versions 7.5/4.1 are the earliest versions still supported. Versions 7.4/4.0 or Tk 3.x are no longer supported. Mac and Windows: Use Tcl 8.0 if available (even alpha or beta). The oldest usable version is 4.1p1/7.5p1. XXX Further speed-up ideas, involving Tcl 8.0 features: - In Tcl_Call(), create Tcl objects from the arguments, possibly using intelligent mappings between Python objects and Tcl objects (e.g. ints, floats and Tcl window pointers could be handled specially). - Register a new Tcl type, "Python callable", which can be called more efficiently and passed to Tcl_EvalObj() directly (if this is possible). */ #include "Python.h" #include #ifdef macintosh #define MAC_TCL #include "myselect.h" #endif #include #include #define TKMAJORMINOR (TK_MAJOR_VERSION*1000 + TK_MINOR_VERSION) #if TKMAJORMINOR >= 8000 && defined(macintosh) /* Sigh, we have to include this to get at the tcl qd pointer */ #include /* And this one we need to clear the menu bar */ #include #endif #if TKMAJORMINOR < 4001 #error "Tk 4.0 or 3.x are not supported -- use 4.1 or higher" #endif #if TKMAJORMINOR < 8000 || !defined(MS_WINDOWS) #define HAVE_CREATEFILEHANDLER #endif extern int Tk_GetNumMainWindows(); #ifdef macintosh /* ** Additional cruft needed by Tcl/Tk on the Mac. ** This is for Tcl 7.5 and Tk 4.1 (patch release 1). */ /* ckfree() expects a char* */ #define FREECAST (char *) #include /* For EventRecord */ typedef int (*TclMacConvertEventPtr) Py_PROTO((EventRecord *eventPtr)); /* They changed the name... */ #if TKMAJORMINOR < 8000 #define Tcl_MacSetEventProc TclMacSetEventProc #endif void Tcl_MacSetEventProc Py_PROTO((TclMacConvertEventPtr procPtr)); int TkMacConvertEvent Py_PROTO((EventRecord *eventPtr)); staticforward int PyMacConvertEvent Py_PROTO((EventRecord *eventPtr)); #if defined(__CFM68K__) && !defined(__USING_STATIC_LIBS__) #pragma import on #endif #include extern int SIOUXIsAppWindow(WindowPtr); #if defined(__CFM68K__) && !defined(__USING_STATIC_LIBS__) #pragma import reset #endif #endif /* macintosh */ #ifndef FREECAST #define FREECAST (char *) #endif /**** Tkapp Object Declaration ****/ staticforward PyTypeObject Tkapp_Type; typedef struct { PyObject_HEAD Tcl_Interp *interp; } TkappObject; #define Tkapp_Check(v) ((v)->ob_type == &Tkapp_Type) #define Tkapp_Interp(v) (((TkappObject *) (v))->interp) #define Tkapp_Result(v) (((TkappObject *) (v))->interp->result) #define DEBUG_REFCNT(v) (printf("DEBUG: id=%p, refcnt=%i\n", \ (void *) v, ((PyObject *) v)->ob_refcnt)) /**** Error Handling ****/ static PyObject *Tkinter_TclError; static int quitMainLoop = 0; static int errorInCmd = 0; static PyObject *excInCmd; static PyObject *valInCmd; static PyObject *trbInCmd; static PyObject * Tkinter_Error(v) PyObject *v; { PyErr_SetString(Tkinter_TclError, Tkapp_Result(v)); return NULL; } int PythonCmd_Error(interp) Tcl_Interp *interp; { errorInCmd = 1; PyErr_Fetch(&excInCmd, &valInCmd, &trbInCmd); return TCL_ERROR; } /**** Utils ****/ static char * AsString(value, tmp) PyObject *value; PyObject *tmp; { if (PyString_Check(value)) return PyString_AsString(value); else { PyObject *v = PyObject_Str(value); PyList_Append(tmp, v); Py_DECREF(v); return PyString_AsString(v); } } #define ARGSZ 64 static char * Merge(args) PyObject *args; { PyObject *tmp = NULL; char *argvStore[ARGSZ]; char **argv = NULL; int fvStore[ARGSZ]; int *fv = NULL; int argc = 0, i; char *res = NULL; if (!(tmp = PyList_New(0))) return NULL; argv = argvStore; fv = fvStore; if (args == NULL) argc = 0; else if (!PyTuple_Check(args)) { argc = 1; fv[0] = 0; argv[0] = AsString(args, tmp); } else { argc = PyTuple_Size(args); if (argc > ARGSZ) { argv = (char **)ckalloc(argc * sizeof(char *)); fv = (int *)ckalloc(argc * sizeof(int)); if (argv == NULL || fv == NULL) { PyErr_NoMemory(); goto finally; } } for (i = 0; i < argc; i++) { PyObject *v = PyTuple_GetItem(args, i); if (PyTuple_Check(v)) { fv[i] = 1; if (!(argv[i] = Merge(v))) goto finally; } else if (v == Py_None) { argc = i; break; } else { fv[i] = 0; argv[i] = AsString(v, tmp); } } } res = Tcl_Merge(argc, argv); finally: for (i = 0; i < argc; i++) if (fv[i]) { ckfree(argv[i]); } if (argv != argvStore) ckfree(FREECAST argv); if (fv != fvStore) ckfree(FREECAST fv); Py_DECREF(tmp); return res; } static PyObject * Split(self, list) PyObject *self; char *list; { int argc; char **argv; PyObject *v; if (list == NULL) { Py_INCREF(Py_None); return Py_None; } if (Tcl_SplitList(Tkapp_Interp(self), list, &argc, &argv) == TCL_ERROR) { /* Not a list. * Could be a quoted string containing funnies, e.g. {"}. * Return the string itself. */ PyErr_Clear(); return PyString_FromString(list); } if (argc == 0) v = PyString_FromString(""); else if (argc == 1) v = PyString_FromString(argv[0]); else if ((v = PyTuple_New(argc)) != NULL) { int i; PyObject *w; for (i = 0; i < argc; i++) { if ((w = Split(self, argv[i])) == NULL) { Py_DECREF(v); v = NULL; break; } PyTuple_SetItem(v, i, w); } } ckfree(FREECAST argv); return v; } /**** Tkapp Object ****/ #ifndef WITH_APPINIT int Tcl_AppInit(interp) Tcl_Interp *interp; { Tk_Window main; main = Tk_MainWindow(interp); if (Tcl_Init(interp) == TCL_ERROR) { fprintf(stderr, "Tcl_Init error: %s\n", interp->result); return TCL_ERROR; } if (Tk_Init(interp) == TCL_ERROR) { fprintf(stderr, "Tk_Init error: %s\n", interp->result); return TCL_ERROR; } return TCL_OK; } #endif /* !WITH_APPINIT */ /* Initialize the Tk application; see the `main' function in * `tkMain.c'. */ static TkappObject * Tkapp_New(screenName, baseName, className, interactive) char *screenName; char *baseName; char *className; int interactive; { TkappObject *v; char *argv0; v = PyObject_NEW(TkappObject, &Tkapp_Type); if (v == NULL) return NULL; v->interp = Tcl_CreateInterp(); #if defined(macintosh) && TKMAJORMINOR >= 8000 /* This seems to be needed since Tk 8.0 */ ClearMenuBar(); TkMacInitMenus(v->interp); #endif /* Delete the 'exit' command, which can screw things up */ Tcl_DeleteCommand(v->interp, "exit"); if (screenName != NULL) Tcl_SetVar2(v->interp, "env", "DISPLAY", screenName, TCL_GLOBAL_ONLY); if (interactive) Tcl_SetVar(v->interp, "tcl_interactive", "1", TCL_GLOBAL_ONLY); else Tcl_SetVar(v->interp, "tcl_interactive", "0", TCL_GLOBAL_ONLY); /* This is used to get the application class for Tk 4.1 and up */ argv0 = (char*)ckalloc(strlen(className) + 1); if (!argv0) { PyErr_NoMemory(); Py_DECREF(v); return NULL; } strcpy(argv0, className); if (isupper((int)(argv0[0]))) argv0[0] = tolower(argv0[0]); Tcl_SetVar(v->interp, "argv0", argv0, TCL_GLOBAL_ONLY); ckfree(argv0); if (Tcl_AppInit(v->interp) != TCL_OK) return (TkappObject *)Tkinter_Error(v); return v; } /** Tcl Eval **/ static PyObject * Tkapp_Call(self, args) PyObject *self; PyObject *args; { /* This is copied from Merge() */ PyObject *tmp = NULL; char *argvStore[ARGSZ]; char **argv = NULL; int fvStore[ARGSZ]; int *fv = NULL; int argc = 0, i; PyObject *res = NULL; /* except this has a different type */ Tcl_CmdInfo info; /* and this is added */ Tcl_Interp *interp = Tkapp_Interp(self); /* and this too */ if (!(tmp = PyList_New(0))) return NULL; argv = argvStore; fv = fvStore; if (args == NULL) argc = 0; else if (!PyTuple_Check(args)) { argc = 1; fv[0] = 0; argv[0] = AsString(args, tmp); } else { argc = PyTuple_Size(args); if (argc > ARGSZ) { argv = (char **)ckalloc(argc * sizeof(char *)); fv = (int *)ckalloc(argc * sizeof(int)); if (argv == NULL || fv == NULL) { PyErr_NoMemory(); goto finally; } } for (i = 0; i < argc; i++) { PyObject *v = PyTuple_GetItem(args, i); if (PyTuple_Check(v)) { fv[i] = 1; if (!(argv[i] = Merge(v))) goto finally; } else if (v == Py_None) { argc = i; break; } else { fv[i] = 0; argv[i] = AsString(v, tmp); } } } /* End code copied from Merge() */ /* All this to avoid a call to Tcl_Merge() and the corresponding call to Tcl_SplitList() inside Tcl_Eval()... It can save a bundle! */ if (Py_VerboseFlag >= 2) { for (i = 0; i < argc; i++) fprintf(stderr, "%s ", argv[i]); } if (argc < 1 || !Tcl_GetCommandInfo(interp, argv[0], &info) || info.proc == NULL) { char *cmd; if (Py_VerboseFlag >= 2) fprintf(stderr, "... use TclEval "); cmd = Tcl_Merge(argc, argv); i = Tcl_Eval(interp, cmd); ckfree(cmd); } else { Tcl_ResetResult(interp); i = (*info.proc)(info.clientData, interp, argc, argv); } if (i == TCL_ERROR) { if (Py_VerboseFlag >= 2) fprintf(stderr, "... error: '%s'\n", interp->result); Tkinter_Error(self); } else { if (Py_VerboseFlag >= 2) fprintf(stderr, "-> '%s'\n", interp->result); res = PyString_FromString(interp->result); } /* Copied from Merge() again */ finally: for (i = 0; i < argc; i++) if (fv[i]) { ckfree(argv[i]); } if (argv != argvStore) ckfree(FREECAST argv); if (fv != fvStore) ckfree(FREECAST fv); Py_DECREF(tmp); return res; } static PyObject * Tkapp_GlobalCall(self, args) PyObject *self; PyObject *args; { /* Could do the same here as for Tkapp_Call(), but this is not used much, so I can't be bothered. Unfortunately Tcl doesn't export a way for the user to do what all its Global* variants do (save and reset the scope pointer, call the local version, restore the saved scope pointer). */ char *cmd = Merge(args); PyObject *res = NULL; if (!cmd) PyErr_SetString(Tkinter_TclError, "merge failed"); else if (Tcl_GlobalEval(Tkapp_Interp(self), cmd) == TCL_ERROR) res = Tkinter_Error(self); else res = PyString_FromString(Tkapp_Result(self)); if (cmd) ckfree(cmd); return res; } static PyObject * Tkapp_Eval(self, args) PyObject *self; PyObject *args; { char *script; if (!PyArg_ParseTuple(args, "s", &script)) return NULL; if (Tcl_Eval(Tkapp_Interp(self), script) == TCL_ERROR) return Tkinter_Error(self); return PyString_FromString(Tkapp_Result(self)); } static PyObject * Tkapp_GlobalEval(self, args) PyObject *self; PyObject *args; { char *script; if (!PyArg_ParseTuple(args, "s", &script)) return NULL; if (Tcl_GlobalEval(Tkapp_Interp(self), script) == TCL_ERROR) return Tkinter_Error(self); return PyString_FromString(Tkapp_Result(self)); } static PyObject * Tkapp_EvalFile(self, args) PyObject *self; PyObject *args; { char *fileName; if (!PyArg_ParseTuple(args, "s", &fileName)) return NULL; if (Tcl_EvalFile(Tkapp_Interp(self), fileName) == TCL_ERROR) return Tkinter_Error(self); return PyString_FromString(Tkapp_Result(self)); } static PyObject * Tkapp_Record(self, args) PyObject *self; PyObject *args; { char *script; if (!PyArg_ParseTuple(args, "s", &script)) return NULL; if (TCL_ERROR == Tcl_RecordAndEval(Tkapp_Interp(self), script, TCL_NO_EVAL)) return Tkinter_Error(self); return PyString_FromString(Tkapp_Result(self)); } static PyObject * Tkapp_AddErrorInfo(self, args) PyObject *self; PyObject *args; { char *msg; if (!PyArg_ParseTuple(args, "s", &msg)) return NULL; Tcl_AddErrorInfo(Tkapp_Interp(self), msg); Py_INCREF(Py_None); return Py_None; } /** Tcl Variable **/ static PyObject * SetVar(self, args, flags) PyObject *self; PyObject *args; int flags; { char *name1, *name2, *ok; PyObject *newValue; PyObject *tmp = PyList_New(0); if (!tmp) return NULL; if (PyArg_ParseTuple(args, "sO", &name1, &newValue)) /* XXX Merge? */ ok = Tcl_SetVar(Tkapp_Interp(self), name1, AsString(newValue, tmp), flags); else { PyErr_Clear(); if (PyArg_ParseTuple(args, "ssO", &name1, &name2, &newValue)) ok = Tcl_SetVar2(Tkapp_Interp(self), name1, name2, AsString (newValue, tmp), flags); else { Py_DECREF (tmp); return NULL; } } Py_DECREF(tmp); if (!ok) return Tkinter_Error(self); Py_INCREF(Py_None); return Py_None; } static PyObject * Tkapp_SetVar(self, args) PyObject *self; PyObject *args; { return SetVar(self, args, TCL_LEAVE_ERR_MSG); } static PyObject * Tkapp_GlobalSetVar(self, args) PyObject *self; PyObject *args; { return SetVar(self, args, TCL_LEAVE_ERR_MSG | TCL_GLOBAL_ONLY); } static PyObject * GetVar(self, args, flags) PyObject *self; PyObject *args; int flags; { char *name1, *name2=NULL, *s; if (!PyArg_ParseTuple(args, "s|s", &name1, &name2)) return NULL; if (name2 == NULL) s = Tcl_GetVar(Tkapp_Interp (self), name1, flags); else s = Tcl_GetVar2(Tkapp_Interp(self), name1, name2, flags); if (s == NULL) return Tkinter_Error(self); return PyString_FromString(s); } static PyObject * Tkapp_GetVar(self, args) PyObject *self; PyObject *args; { return GetVar(self, args, TCL_LEAVE_ERR_MSG); } static PyObject * Tkapp_GlobalGetVar(self, args) PyObject *self; PyObject *args; { return GetVar(self, args, TCL_LEAVE_ERR_MSG | TCL_GLOBAL_ONLY); } static PyObject * UnsetVar(self, args, flags) PyObject *self; PyObject *args; int flags; { char *name1, *name2=NULL; int code; if (!PyArg_ParseTuple(args, "s|s", &name1, &name2)) return NULL; if (name2 == NULL) code = Tcl_UnsetVar(Tkapp_Interp(self), name1, flags); else code = Tcl_UnsetVar2(Tkapp_Interp(self), name1, name2, flags); if (code == TCL_ERROR) return Tkinter_Error(self); Py_INCREF(Py_None); return Py_None; } static PyObject * Tkapp_UnsetVar(self, args) PyObject *self; PyObject *args; { return UnsetVar(self, args, TCL_LEAVE_ERR_MSG); } static PyObject * Tkapp_GlobalUnsetVar(self, args) PyObject *self; PyObject *args; { return UnsetVar(self, args, TCL_LEAVE_ERR_MSG | TCL_GLOBAL_ONLY); } /** Tcl to Python **/ static PyObject * Tkapp_GetInt(self, args) PyObject *self; PyObject *args; { char *s; int v; if (!PyArg_ParseTuple(args, "s", &s)) return NULL; if (Tcl_GetInt(Tkapp_Interp(self), s, &v) == TCL_ERROR) return Tkinter_Error(self); return Py_BuildValue("i", v); } static PyObject * Tkapp_GetDouble(self, args) PyObject *self; PyObject *args; { char *s; double v; if (!PyArg_ParseTuple(args, "s", &s)) return NULL; if (Tcl_GetDouble(Tkapp_Interp(self), s, &v) == TCL_ERROR) return Tkinter_Error(self); return Py_BuildValue("d", v); } static PyObject * Tkapp_GetBoolean(self, args) PyObject *self; PyObject *args; { char *s; int v; if (!PyArg_ParseTuple(args, "s", &s)) return NULL; if (Tcl_GetBoolean(Tkapp_Interp(self), s, &v) == TCL_ERROR) return Tkinter_Error(self); return Py_BuildValue("i", v); } static PyObject * Tkapp_ExprString(self, args) PyObject *self; PyObject *args; { char *s; if (!PyArg_ParseTuple(args, "s", &s)) return NULL; if (Tcl_ExprString(Tkapp_Interp(self), s) == TCL_ERROR) return Tkinter_Error(self); return Py_BuildValue("s", Tkapp_Result(self)); } static PyObject * Tkapp_ExprLong(self, args) PyObject *self; PyObject *args; { char *s; long v; if (!PyArg_ParseTuple(args, "s", &s)) return NULL; if (Tcl_ExprLong(Tkapp_Interp(self), s, &v) == TCL_ERROR) return Tkinter_Error(self); return Py_BuildValue("l", v); } static PyObject * Tkapp_ExprDouble(self, args) PyObject *self; PyObject *args; { char *s; double v; int retval; if (!PyArg_ParseTuple(args, "s", &s)) return NULL; PyFPE_START_PROTECT("Tkapp_ExprDouble", return 0) retval = Tcl_ExprDouble(Tkapp_Interp(self), s, &v); PyFPE_END_PROTECT(retval) if (retval == TCL_ERROR) return Tkinter_Error(self); return Py_BuildValue("d", v); } static PyObject * Tkapp_ExprBoolean(self, args) PyObject *self; PyObject *args; { char *s; int v; if (!PyArg_ParseTuple(args, "s", &s)) return NULL; if (Tcl_ExprBoolean(Tkapp_Interp(self), s, &v) == TCL_ERROR) return Tkinter_Error(self); return Py_BuildValue("i", v); } static PyObject * Tkapp_SplitList(self, args) PyObject *self; PyObject *args; { char *list; int argc; char **argv; PyObject *v; int i; if (!PyArg_ParseTuple(args, "s", &list)) return NULL; if (Tcl_SplitList(Tkapp_Interp(self), list, &argc, &argv) == TCL_ERROR) return Tkinter_Error(self); if (!(v = PyTuple_New(argc))) return NULL; for (i = 0; i < argc; i++) { PyObject *s = PyString_FromString(argv[i]); if (!s || PyTuple_SetItem(v, i, s)) { Py_DECREF(v); v = NULL; goto finally; } } finally: ckfree(FREECAST argv); return v; } static PyObject * Tkapp_Split(self, args) PyObject *self; PyObject *args; { char *list; if (!PyArg_ParseTuple(args, "s", &list)) return NULL; return Split(self, list); } static PyObject * Tkapp_Merge(self, args) PyObject *self; PyObject *args; { char *s = Merge(args); PyObject *res = NULL; if (s) { res = PyString_FromString(s); ckfree(s); } else PyErr_SetString(Tkinter_TclError, "merge failed"); return res; } /** Tcl Command **/ /* This is the Tcl command that acts as a wrapper for Python * function or method. */ static int PythonCmd(clientData, interp, argc, argv) ClientData clientData; /* Is (self, func) */ Tcl_Interp *interp; int argc; char *argv[]; { PyObject *self, *func, *arg, *res, *tmp; int i; /* TBD: no error checking here since we know, via the * Tkapp_CreateCommand() that the client data is a two-tuple */ self = PyTuple_GetItem((PyObject *) clientData, 0); func = PyTuple_GetItem((PyObject *) clientData, 1); /* Create argument list (argv1, ..., argvN) */ if (!(arg = PyTuple_New(argc - 1))) return PythonCmd_Error(interp); for (i = 0; i < (argc - 1); i++) { PyObject *s = PyString_FromString(argv[i + 1]); if (!s || PyTuple_SetItem(arg, i, s)) { Py_DECREF(arg); PythonCmd_Error(interp); } } res = PyEval_CallObject(func, arg); Py_DECREF(arg); if (res == NULL) return PythonCmd_Error(interp); if (!(tmp = PyList_New(0))) { Py_DECREF(res); return PythonCmd_Error(interp); } Tcl_SetResult(Tkapp_Interp(self), AsString(res, tmp), TCL_VOLATILE); Py_DECREF(res); Py_DECREF(tmp); return TCL_OK; } static void PythonCmdDelete(clientData) ClientData clientData; /* Is (self, func) */ { Py_DECREF((PyObject *) clientData); } static PyObject * Tkapp_CreateCommand(self, args) PyObject *self; PyObject *args; { char *cmdName; PyObject *func; PyObject *data; if (!PyArg_ParseTuple(args, "sO", &cmdName, &func)) return NULL; if (!PyCallable_Check(func)) { PyErr_SetString(PyExc_TypeError, "command not callable"); return NULL; } data = Py_BuildValue("OO", self, func); if (!data) return NULL; if (Tcl_CreateCommand(Tkapp_Interp(self), cmdName, PythonCmd, (ClientData) data, PythonCmdDelete) == NULL) { PyErr_SetString(Tkinter_TclError, "can't create Tcl command"); Py_DECREF(data); return NULL; } Py_INCREF(Py_None); return Py_None; } static PyObject * Tkapp_DeleteCommand(self, args) PyObject *self; PyObject *args; { char *cmdName; if (!PyArg_ParseTuple(args, "s", &cmdName)) return NULL; if (Tcl_DeleteCommand(Tkapp_Interp(self), cmdName) == -1) { PyErr_SetString(Tkinter_TclError, "can't delete Tcl command"); return NULL; } Py_INCREF(Py_None); return Py_None; } /** File Handler **/ static void FileHandler(clientData, mask) ClientData clientData; /* Is: (func, file) */ int mask; { PyObject *func, *file, *arg, *res; func = PyTuple_GetItem((PyObject *) clientData, 0); file = PyTuple_GetItem((PyObject *) clientData, 1); arg = Py_BuildValue("(Oi)", file, (long) mask); res = PyEval_CallObject(func, arg); Py_DECREF(arg); if (res == NULL) { errorInCmd = 1; PyErr_Fetch(&excInCmd, &valInCmd, &trbInCmd); } Py_XDECREF(res); } static int GetFileNo(file) /* Either an int >= 0 or an object with a *.fileno() method that returns an int >= 0 */ PyObject *file; { PyObject *meth, *args, *res; int id; if (PyInt_Check(file)) { id = PyInt_AsLong(file); if (id < 0) PyErr_SetString(PyExc_ValueError, "invalid file id"); return id; } args = PyTuple_New(0); if (args == NULL) return -1; meth = PyObject_GetAttrString(file, "fileno"); if (meth == NULL) { Py_DECREF(args); return -1; } res = PyEval_CallObject(meth, args); Py_DECREF(args); Py_DECREF(meth); if (res == NULL) return -1; if (PyInt_Check(res)) id = PyInt_AsLong(res); else id = -1; if (id < 0) PyErr_SetString(PyExc_ValueError, "invalid fileno() return value"); Py_DECREF(res); return id; } static PyObject* Tkapp_ClientDataDict = NULL; #ifdef HAVE_CREATEFILEHANDLER static PyObject * Tkapp_CreateFileHandler(self, args) PyObject *self; PyObject *args; /* Is (file, mask, func) */ { PyObject *file, *func, *data; PyObject *idkey; int mask, id; #if TKMAJORMINOR < 8000 Tcl_File tfile; #endif if (!Tkapp_ClientDataDict) { if (!(Tkapp_ClientDataDict = PyDict_New())) return NULL; } if (!PyArg_ParseTuple(args, "OiO", &file, &mask, &func)) return NULL; id = GetFileNo(file); if (id < 0) return NULL; if (!PyCallable_Check(func)) { PyErr_SetString(PyExc_TypeError, "bad argument list"); return NULL; } if (!(idkey = PyInt_FromLong(id))) return NULL; /* ClientData is: (func, file) */ data = Py_BuildValue("(OO)", func, file); if (!data || PyDict_SetItem(Tkapp_ClientDataDict, idkey, data)) { Py_DECREF(idkey); Py_XDECREF(data); return NULL; } Py_DECREF(idkey); #if TKMAJORMINOR < 8000 #ifdef MS_WINDOWS /* We assume this is a socket... */ tfile = Tcl_GetFile((ClientData)id, TCL_WIN_SOCKET); #else /* !MS_WINDOWS */ tfile = Tcl_GetFile((ClientData)id, TCL_UNIX_FD); #endif /* !MS_WINDOWS */ /* Ought to check for null Tcl_File object... */ Tcl_CreateFileHandler(tfile, mask, FileHandler, (ClientData) data); #else /* >= 8000 */ Tcl_CreateFileHandler(id, mask, FileHandler, (ClientData) data); #endif /* >= 8000 */ /* XXX fileHandlerDict */ Py_INCREF(Py_None); return Py_None; } static PyObject * Tkapp_DeleteFileHandler(self, args) PyObject *self; PyObject *args; /* Args: file */ { PyObject *file; PyObject *idkey; PyObject *data; int id; #if TKMAJORMINOR < 8000 Tcl_File tfile; #endif if (!PyArg_ParseTuple(args, "O", &file)) return NULL; id = GetFileNo(file); if (id < 0) return NULL; if (!(idkey = PyInt_FromLong(id))) return NULL; /* find and free the object created in the * Tkapp_CreateFileHandler() call */ data = PyDict_GetItem(Tkapp_ClientDataDict, idkey); Py_XDECREF(data); PyDict_DelItem(Tkapp_ClientDataDict, idkey); Py_DECREF(idkey); #if TKMAJORMINOR < 8000 #ifdef MS_WINDOWS /* We assume this is a socket... */ tfile = Tcl_GetFile((ClientData)id, TCL_WIN_SOCKET); #else tfile = Tcl_GetFile((ClientData)id, TCL_UNIX_FD); #endif /* Ought to check for null Tcl_File object... */ Tcl_DeleteFileHandler(tfile); #else /* >= 8000 */ Tcl_DeleteFileHandler(id); #endif /* >= 8000 */ /* XXX fileHandlerDict */ Py_INCREF(Py_None); return Py_None; } #endif /* HAVE_CREATEFILEHANDLER */ /**** Tktt Object (timer token) ****/ staticforward PyTypeObject Tktt_Type; typedef struct { PyObject_HEAD Tcl_TimerToken token; PyObject *func; } TkttObject; static PyObject * Tktt_DeleteTimerHandler(self, args) PyObject *self; PyObject *args; { TkttObject *v = (TkttObject *)self; if (!PyArg_ParseTuple(args, "")) return NULL; if (v->func != NULL) { Tcl_DeleteTimerHandler(v->token); PyMem_DEL(v->func); v->func = NULL; } Py_INCREF(Py_None); return Py_None; } static PyMethodDef Tktt_methods[] = { {"deletetimerhandler", Tktt_DeleteTimerHandler, 1}, {NULL, NULL} }; static TkttObject * Tktt_New(token, func) Tcl_TimerToken token; PyObject *func; { TkttObject *v; v = PyObject_NEW(TkttObject, &Tktt_Type); if (v == NULL) return NULL; v->token = token; v->func = func; Py_INCREF(v->func); return v; } static void Tktt_Dealloc(self) PyObject *self; { PyMem_DEL(self); } static PyObject * Tktt_Repr(self) PyObject *self; { TkttObject *v = (TkttObject *)self; char buf[100]; sprintf(buf, "", (long)v, v->func == NULL ? ", handler deleted" : ""); return PyString_FromString(buf); } static PyObject * Tktt_GetAttr(self, name) PyObject *self; char *name; { return Py_FindMethod(Tktt_methods, self, name); } static PyTypeObject Tktt_Type = { PyObject_HEAD_INIT(NULL) 0, /*ob_size */ "tktimertoken", /*tp_name */ sizeof(TkttObject), /*tp_basicsize */ 0, /*tp_itemsize */ Tktt_Dealloc, /*tp_dealloc */ 0, /*tp_print */ Tktt_GetAttr, /*tp_getattr */ 0, /*tp_setattr */ 0, /*tp_compare */ Tktt_Repr, /*tp_repr */ 0, /*tp_as_number */ 0, /*tp_as_sequence */ 0, /*tp_as_mapping */ 0, /*tp_hash */ }; /** Timer Handler **/ static void TimerHandler(clientData) ClientData clientData; { PyObject *func = (PyObject *)clientData; PyObject *res = PyEval_CallObject(func, NULL); if (res == NULL) { errorInCmd = 1; PyErr_Fetch(&excInCmd, &valInCmd, &trbInCmd); } else Py_DECREF(res); } static PyObject * Tkapp_CreateTimerHandler(self, args) PyObject *self; PyObject *args; /* Is (milliseconds, func) */ { int milliseconds; PyObject *func; Tcl_TimerToken token; if (!PyArg_ParseTuple(args, "iO", &milliseconds, &func)) return NULL; if (!PyCallable_Check(func)) { PyErr_SetString(PyExc_TypeError, "bad argument list"); return NULL; } token = Tcl_CreateTimerHandler(milliseconds, TimerHandler, (ClientData)func); return (PyObject *) Tktt_New(token, func); } /** Event Loop **/ static PyObject * Tkapp_MainLoop(self, args) PyObject *self; PyObject *args; { int threshold = 0; if (!PyArg_ParseTuple(args, "|i", &threshold)) return NULL; quitMainLoop = 0; while (Tk_GetNumMainWindows() > threshold && !quitMainLoop && !errorInCmd) { int result; #ifdef HAVE_PYTCL_WAITUNTILEVENT result = Tcl_DoOneEvent(TCL_DONT_WAIT); if (PyErr_CheckSignals() != 0) return NULL; if (result) continue; /* XXX It's not *quite* certain that this is thread-safe, but it seems *rather* safe as long as no two threads call mainloop() simultaneously. */ Py_BEGIN_ALLOW_THREADS result = PyTcl_WaitUntilEvent(); Py_END_ALLOW_THREADS #else result = Tcl_DoOneEvent(0); #endif if (PyErr_CheckSignals() != 0) return NULL; if (result < 0) break; } quitMainLoop = 0; if (errorInCmd) { errorInCmd = 0; PyErr_Restore(excInCmd, valInCmd, trbInCmd); excInCmd = valInCmd = trbInCmd = NULL; return NULL; } Py_INCREF(Py_None); return Py_None; } static PyObject * Tkapp_DoOneEvent(self, args) PyObject *self; PyObject *args; { int flags = 0; int rv; if (!PyArg_ParseTuple(args, "|i", &flags)) return NULL; rv = Tcl_DoOneEvent(flags); return Py_BuildValue("i", rv); } static PyObject * Tkapp_Quit(self, args) PyObject *self; PyObject *args; { if (!PyArg_ParseTuple(args, "")) return NULL; quitMainLoop = 1; Py_INCREF(Py_None); return Py_None; } static PyObject * Tkapp_InterpAddr(self, args) PyObject *self; PyObject *args; { if (!PyArg_ParseTuple(args, "")) return NULL; return PyInt_FromLong((long)Tkapp_Interp(self)); } /**** Tkapp Method List ****/ static PyMethodDef Tkapp_methods[] = { {"call", Tkapp_Call, 0}, {"globalcall", Tkapp_GlobalCall, 0}, {"eval", Tkapp_Eval, 1}, {"globaleval", Tkapp_GlobalEval, 1}, {"evalfile", Tkapp_EvalFile, 1}, {"record", Tkapp_Record, 1}, {"adderrorinfo", Tkapp_AddErrorInfo, 1}, {"setvar", Tkapp_SetVar, 1}, {"globalsetvar", Tkapp_GlobalSetVar, 1}, {"getvar", Tkapp_GetVar, 1}, {"globalgetvar", Tkapp_GlobalGetVar, 1}, {"unsetvar", Tkapp_UnsetVar, 1}, {"globalunsetvar", Tkapp_GlobalUnsetVar, 1}, {"getint", Tkapp_GetInt, 1}, {"getdouble", Tkapp_GetDouble, 1}, {"getboolean", Tkapp_GetBoolean, 1}, {"exprstring", Tkapp_ExprString, 1}, {"exprlong", Tkapp_ExprLong, 1}, {"exprdouble", Tkapp_ExprDouble, 1}, {"exprboolean", Tkapp_ExprBoolean, 1}, {"splitlist", Tkapp_SplitList, 1}, {"split", Tkapp_Split, 1}, {"merge", Tkapp_Merge, 0}, {"createcommand", Tkapp_CreateCommand, 1}, {"deletecommand", Tkapp_DeleteCommand, 1}, #ifdef HAVE_CREATEFILEHANDLER {"createfilehandler", Tkapp_CreateFileHandler, 1}, {"deletefilehandler", Tkapp_DeleteFileHandler, 1}, #endif {"createtimerhandler", Tkapp_CreateTimerHandler, 1}, {"mainloop", Tkapp_MainLoop, 1}, {"dooneevent", Tkapp_DoOneEvent, 1}, {"quit", Tkapp_Quit, 1}, {"interpaddr", Tkapp_InterpAddr, 1}, {NULL, NULL} }; /**** Tkapp Type Methods ****/ static void Tkapp_Dealloc(self) PyObject *self; { Tcl_DeleteInterp(Tkapp_Interp(self)); PyMem_DEL(self); } static PyObject * Tkapp_GetAttr(self, name) PyObject *self; char *name; { return Py_FindMethod(Tkapp_methods, self, name); } static PyTypeObject Tkapp_Type = { PyObject_HEAD_INIT(NULL) 0, /*ob_size */ "tkapp", /*tp_name */ sizeof(TkappObject), /*tp_basicsize */ 0, /*tp_itemsize */ Tkapp_Dealloc, /*tp_dealloc */ 0, /*tp_print */ Tkapp_GetAttr, /*tp_getattr */ 0, /*tp_setattr */ 0, /*tp_compare */ 0, /*tp_repr */ 0, /*tp_as_number */ 0, /*tp_as_sequence */ 0, /*tp_as_mapping */ 0, /*tp_hash */ }; /**** Tkinter Module ****/ static PyObject * Tkinter_Create(self, args) PyObject *self; PyObject *args; { char *screenName = NULL; char *baseName = NULL; char *className = NULL; int interactive = 0; baseName = strrchr(Py_GetProgramName(), '/'); if (baseName != NULL) baseName++; else baseName = Py_GetProgramName(); className = "Tk"; if (!PyArg_ParseTuple(args, "|zssi", &screenName, &baseName, &className, &interactive)) return NULL; return (PyObject *) Tkapp_New(screenName, baseName, className, interactive); } static PyMethodDef moduleMethods[] = { {"create", Tkinter_Create, 1}, #ifdef HAVE_CREATEFILEHANDLER {"createfilehandler", Tkapp_CreateFileHandler, 1}, {"deletefilehandler", Tkapp_DeleteFileHandler, 1}, #endif {"createtimerhandler", Tkapp_CreateTimerHandler, 1}, {"mainloop", Tkapp_MainLoop, 1}, {"dooneevent", Tkapp_DoOneEvent, 1}, {"quit", Tkapp_Quit, 1}, {NULL, NULL} }; static PyInterpreterState *event_interp = NULL; static int EventHook() { PyThreadState *tstate, *save_tstate; if (Tk_GetNumMainWindows() == 0) return 0; if (event_interp == NULL) return 0; tstate = PyThreadState_New(event_interp); save_tstate = PyThreadState_Swap(NULL); PyEval_RestoreThread(tstate); if (!errorInCmd) Tcl_DoOneEvent(TCL_DONT_WAIT); if (errorInCmd) { errorInCmd = 0; PyErr_Restore(excInCmd, valInCmd, trbInCmd); excInCmd = valInCmd = trbInCmd = NULL; PyErr_Print(); } PyThreadState_Clear(tstate); PyEval_SaveThread(); PyThreadState_Swap(save_tstate); PyThreadState_Delete(tstate); return 0; } /* all errors will be checked in one fell swoop in init_tkinter() */ static void ins_long(d, name, val) PyObject *d; char *name; long val; { PyObject *v = PyInt_FromLong(val); if (v) { PyDict_SetItemString(d, name, v); Py_DECREF(v); } } static void ins_string(d, name, val) PyObject *d; char *name; char *val; { PyObject *v = PyString_FromString(val); if (v) { PyDict_SetItemString(d, name, v); Py_DECREF(v); } } void init_tkinter() { PyObject *m, *d; Tkapp_Type.ob_type = &PyType_Type; Tktt_Type.ob_type = &PyType_Type; m = Py_InitModule("_tkinter", moduleMethods); d = PyModule_GetDict(m); Tkinter_TclError = Py_BuildValue("s", "TclError"); PyDict_SetItemString(d, "TclError", Tkinter_TclError); ins_long(d, "READABLE", TCL_READABLE); ins_long(d, "WRITABLE", TCL_WRITABLE); ins_long(d, "EXCEPTION", TCL_EXCEPTION); ins_long(d, "WINDOW_EVENTS", TCL_WINDOW_EVENTS); ins_long(d, "FILE_EVENTS", TCL_FILE_EVENTS); ins_long(d, "TIMER_EVENTS", TCL_TIMER_EVENTS); ins_long(d, "IDLE_EVENTS", TCL_IDLE_EVENTS); ins_long(d, "ALL_EVENTS", TCL_ALL_EVENTS); ins_long(d, "DONT_WAIT", TCL_DONT_WAIT); ins_string(d, "TK_VERSION", TK_VERSION); ins_string(d, "TCL_VERSION", TCL_VERSION); PyDict_SetItemString(d, "TkappType", (PyObject *)&Tkapp_Type); PyDict_SetItemString(d, "TkttType", (PyObject *)&Tktt_Type); if (PyOS_InputHook == NULL) { event_interp = PyThreadState_Get()->interp; PyOS_InputHook = EventHook; } if (PyErr_Occurred()) return; #if TKMAJORMINOR >= 8000 Py_AtExit(Tcl_Finalize); #endif #ifdef macintosh /* ** Part of this code is stolen from MacintoshInit in tkMacAppInit. ** Most of the initializations in that routine (toolbox init calls and ** such) have already been done for us, so we only need these. */ #if TKMAJORMINOR >= 8000 tcl_macQdPtr = &qd; #endif Tcl_MacSetEventProc(PyMacConvertEvent); #if GENERATINGCFM mac_addlibresources(); #endif /* GENERATINGCFM */ #endif /* macintosh */ } #ifdef macintosh /* ** Anyone who embeds Tcl/Tk on the Mac must define panic(). */ void panic(char * format, ...) { va_list varg; va_start(varg, format); vfprintf(stderr, format, varg); (void) fflush(stderr); va_end(varg); Py_FatalError("Tcl/Tk panic"); } /* ** Pass events to SIOUX before passing them to Tk. */ static int PyMacConvertEvent(eventPtr) EventRecord *eventPtr; { WindowPtr frontwin; /* ** Sioux eats too many events, so we don't pass it everything. ** We always pass update events to Sioux, and we only pass other events if ** the Sioux window is frontmost. This means that Tk menus don't work ** in that case, but at least we can scroll the sioux window. ** Note that the SIOUXIsAppWindow() routine we use here is not really ** part of the external interface of Sioux... */ frontwin = FrontWindow(); if ( eventPtr->what == updateEvt || SIOUXIsAppWindow(frontwin) ) { if (SIOUXHandleOneEvent(eventPtr)) return 0; /* Nothing happened to the Tcl event queue */ } return TkMacConvertEvent(eventPtr); } #if defined(USE_GUSI) && TKMAJORMINOR < 8000 /* * For Python we have to override this routine (from TclMacNotify), * since we use GUSI for our sockets, not Tcl streams. Hence, we have * to use GUSI select to see whether our socket is ready. Note that * createfilehandler (above) sets the type to TCL_UNIX_FD for our * files and sockets. * * NOTE: this code was lifted from Tcl 7.6, it may need to be modified * for other versions. */ int Tcl_FileReady(file, mask) Tcl_File file; /* File handle for a stream. */ int mask; /* OR'ed combination of TCL_READABLE, * TCL_WRITABLE, and TCL_EXCEPTION: * indicates conditions caller cares about. */ { int type; int fd; fd = (int) Tcl_GetFileInfo(file, &type); if (type == TCL_MAC_SOCKET) { return TclMacSocketReady(file, mask); } else if (type == TCL_MAC_FILE) { /* * Under the Macintosh, files are always ready, so we just * return the mask that was passed in. */ return mask; } else if (type == TCL_UNIX_FD) { fd_set readset, writeset, excset; struct timeval tv; FD_ZERO(&readset); FD_ZERO(&writeset); FD_ZERO(&excset); if ( mask & TCL_READABLE ) FD_SET(fd, &readset); if ( mask & TCL_WRITABLE ) FD_SET(fd, &writeset); if ( mask & TCL_EXCEPTION ) FD_SET(fd, &excset); tv.tv_sec = tv.tv_usec = 0; if ( select(fd+1, &readset, &writeset, &excset, &tv) <= 0 ) return 0; mask = 0; if ( FD_ISSET(fd, &readset) ) mask |= TCL_READABLE; if ( FD_ISSET(fd, &writeset) ) mask |= TCL_WRITABLE; if ( FD_ISSET(fd, &excset) ) mask |= TCL_EXCEPTION; return mask; } return 0; } #endif /* USE_GUSI */ #if GENERATINGCFM /* ** Additional Mac specific code for dealing with shared libraries. */ #include #include static int loaded_from_shlib = 0; static FSSpec library_fss; /* ** If this module is dynamically loaded the following routine should ** be the init routine. It takes care of adding the shared library to ** the resource-file chain, so that the tk routines can find their ** resources. */ OSErr pascal init_tkinter_shlib(CFragInitBlockPtr data) { __initialize(); if ( data == nil ) return noErr; if ( data->fragLocator.where == kDataForkCFragLocator ) { library_fss = *data->fragLocator.u.onDisk.fileSpec; loaded_from_shlib = 1; } else if ( data->fragLocator.where == kResourceCFragLocator ) { library_fss = *data->fragLocator.u.inSegs.fileSpec; loaded_from_shlib = 1; } return noErr; } /* ** Insert the library resources into the search path. Put them after ** the resources from the application. Again, we ignore errors. */ static mac_addlibresources() { if ( !loaded_from_shlib ) return; (void)FSpOpenResFile(&library_fss, fsRdPerm); } #endif /* GENERATINGCFM */ #endif /* macintosh */