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659e294676
Discover Tcl / Tk functions at run-time by looking in libs loaded by Tkinter Python module. Use header excerpts from Tcl / Tk so we don't need an installed Tcl / Tk to build.
90 lines
1.9 KiB
C
90 lines
1.9 KiB
C
/*
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* The Python Imaging Library.
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*
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* tkinter hooks
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*
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* history:
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* 99-07-26 fl created
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* 99-08-15 fl moved to its own support module
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*
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* Copyright (c) Secret Labs AB 1999.
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*
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* See the README file for information on usage and redistribution.
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*/
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#include "Python.h"
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#include "Imaging.h"
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#include "_tkmini.h"
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/* must link with Tk/tkImaging.c */
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extern void TkImaging_Init(Tcl_Interp* interp);
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extern int load_tkinter_funcs(void);
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/* copied from _tkinter.c (this isn't as bad as it may seem: for new
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versions, we use _tkinter's interpaddr hook instead, and all older
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versions use this structure layout) */
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typedef struct {
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PyObject_HEAD
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Tcl_Interp* interp;
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} TkappObject;
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static PyObject*
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_tkinit(PyObject* self, PyObject* args)
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{
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Tcl_Interp* interp;
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Py_ssize_t arg;
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int is_interp;
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if (!PyArg_ParseTuple(args, "ni", &arg, &is_interp))
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return NULL;
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if (is_interp)
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interp = (Tcl_Interp*) arg;
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else {
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TkappObject* app;
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/* Do it the hard way. This will break if the TkappObject
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layout changes */
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app = (TkappObject*) arg;
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interp = app->interp;
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}
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/* This will bomb if interp is invalid... */
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TkImaging_Init(interp);
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyMethodDef functions[] = {
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/* Tkinter interface stuff */
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{"tkinit", (PyCFunction)_tkinit, 1},
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{NULL, NULL} /* sentinel */
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};
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#if PY_VERSION_HEX >= 0x03000000
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PyMODINIT_FUNC
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PyInit__imagingtk(void) {
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static PyModuleDef module_def = {
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PyModuleDef_HEAD_INIT,
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"_imagingtk", /* m_name */
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NULL, /* m_doc */
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-1, /* m_size */
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functions, /* m_methods */
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};
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PyObject *m;
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m = PyModule_Create(&module_def);
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return (load_tkinter_funcs() == 0) ? m : NULL;
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}
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#else
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PyMODINIT_FUNC
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init_imagingtk(void)
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{
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Py_InitModule("_imagingtk", functions);
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load_tkinter_funcs();
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}
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#endif
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