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added python binding for createButton

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This commit is contained in:
Matthew Skolaut 2016-06-20 16:24:15 -05:00
parent e3844e0f26
commit 9b959072a2
1 changed files with 51 additions and 0 deletions
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51
modules/python/src2/cv2.cpp
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@ -1251,6 +1251,7 @@ static void OnChange(int pos, void *param)
}
#ifdef HAVE_OPENCV_HIGHGUI
static PyObject *pycvCreateTrackbar(PyObject*, PyObject *args)
{
PyObject *on_change;
@ -1270,6 +1271,55 @@ static PyObject *pycvCreateTrackbar(PyObject*, PyObject *args)
}
#endif
static void OnButtonChange(int state, void *param)
{
PyGILState_STATE gstate;
gstate = PyGILState_Ensure();
PyObject *o = (PyObject*)param;
PyObject *args;
if(PyTuple_GetItem(o, 1) != NULL)
{
args = Py_BuildValue("(iO)", state, PyTuple_GetItem(o,1));
}
else
{
args = Py_BuildValue("(i)", state);
}
PyObject *r = PyObject_Call(PyTuple_GetItem(o, 0), args, NULL);
if (r == NULL)
PyErr_Print();
Py_DECREF(args);
PyGILState_Release(gstate);
}
#ifdef HAVE_OPENCV_HIGHGUI
static PyObject *pycvCreateButton(PyObject*, PyObject *args, PyObject *kw)
{
const char* keywords[] = {"buttonName", "onChange", "userData", "buttonType", "initialButtonState", NULL};
PyObject *on_change;
PyObject *userdata = NULL;
char* button_name;
int button_type = 0;
int initial_button_state = 0;
if (!PyArg_ParseTupleAndKeywords(args, kw, "sO|Oii", (char**)keywords, &button_name, &on_change, &userdata, &button_type, &initial_button_state))
return NULL;
if (!PyCallable_Check(on_change)) {
PyErr_SetString(PyExc_TypeError, "onChange must be callable");
return NULL;
}
if (userdata == NULL) {
userdata = Py_None;
}
ERRWRAP2(createButton(button_name, OnButtonChange, Py_BuildValue("OO", on_change, userdata), button_type, initial_button_state));
Py_RETURN_NONE;
}
#endif
///////////////////////////////////////////////////////////////////////////////////////
static int convert_to_char(PyObject *o, char *dst, const char *name = "no_name")
@ -1300,6 +1350,7 @@ static int convert_to_char(PyObject *o, char *dst, const char *name = "no_name")
static PyMethodDef special_methods[] = {
#ifdef HAVE_OPENCV_HIGHGUI
{"createTrackbar", pycvCreateTrackbar, METH_VARARGS, "createTrackbar(trackbarName, windowName, value, count, onChange) -> None"},
{"createButton", (PyCFunction)pycvCreateButton, METH_VARARGS | METH_KEYWORDS, "createButton(buttonName, onChange [, userData, buttonType, initialButtonState]) -> None"},
{"setMouseCallback", (PyCFunction)pycvSetMouseCallback, METH_VARARGS | METH_KEYWORDS, "setMouseCallback(windowName, onMouse [, param]) -> None"},
#endif
{NULL, NULL},