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helpers and typemaps for new GraphicsContext methods

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41929 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robin Dunn
2006-10-11 04:42:49 +00:00
parent 0f82eb02e4
commit 281c54cc42
6 changed files with 273 additions and 72 deletions
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207
wxPython/src/helpers.cpp
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@@ -2058,37 +2058,73 @@ char** string_LIST_helper(PyObject* source) {
return temp;
}
//--------------------------------
// Part of patch from Tim Hochberg
static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point) {
if (PyInt_Check(o1) && PyInt_Check(o2)) {
point->x = PyInt_AS_LONG(o1);
point->y = PyInt_AS_LONG(o2);
return true;
}
if (PyFloat_Check(o1) && PyFloat_Check(o2)) {
//---------------------------------------------------------------------------
// NOTE: The following functions could really use some refactoring using
// templates to make things somewhat simpler...
inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point)
{
// get the x value
if (PyInt_Check(o1))
point->x = (int)PyInt_AS_LONG(o1);
else if (PyFloat_Check(o1))
point->x = (int)PyFloat_AS_DOUBLE(o1);
point->y = (int)PyFloat_AS_DOUBLE(o2);
return true;
}
if (wxPySwigInstance_Check(o1) || wxPySwigInstance_Check(o2)) { // TODO: Why???
// Disallow instances because they can cause havok
else if (PyNumber_Check(o1))
point->x = (int)PyInt_AsLong(o1);
else
return false;
}
if (PyNumber_Check(o1) && PyNumber_Check(o2)) {
// I believe this excludes instances, so this should be safe without INCREFFing o1 and o2
point->x = PyInt_AsLong(o1);
point->y = PyInt_AsLong(o2);
return true;
}
return false;
// get the y value
if (PyInt_Check(o2))
point->y = (int)PyInt_AS_LONG(o2);
else if (PyFloat_Check(o2))
point->y = (int)PyFloat_AS_DOUBLE(o2);
else if (PyNumber_Check(o2))
point->y = (int)PyInt_AsLong(o2);
else
return false;
return true;
// NOTE: This function used to have this code in it, but I don't know why it
// is a problem nor what havok it will cause, so removing for now...
// if (wxPySwigInstance_Check(o1) || wxPySwigInstance_Check(o2)) {
// // Disallow instances because they can cause havok
// return false;
// }
}
wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
// Putting all of the declarations here allows
// us to put the error handling all in one place.
int x;
inline bool wxPoint2DFromObjects(PyObject* o1, PyObject* o2, wxPoint2D* point)
{
// get the x value
if (PyInt_Check(o1))
point->m_x = (double)PyInt_AS_LONG(o1);
else if (PyFloat_Check(o1))
point->m_x = (double)PyFloat_AS_DOUBLE(o1);
else if (PyNumber_Check(o1))
point->m_x = (double)PyFloat_AsDouble(o1);
else
return false;
// get the y value
if (PyInt_Check(o2))
point->m_y = (double)PyInt_AS_LONG(o2);
else if (PyFloat_Check(o2))
point->m_y = (double)PyFloat_AS_DOUBLE(o2);
else if (PyNumber_Check(o2))
point->m_y = (double)PyFloat_AsDouble(o2);
else
return false;
return true;
}
wxPoint* wxPoint_LIST_helper(PyObject* source, int *count)
{
int idx;
wxPoint* temp;
PyObject *o, *o1, *o2;
bool isFast = PyList_Check(source) || PyTuple_Check(source);
@@ -2108,13 +2144,13 @@ wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
return NULL;
}
for (x=0; x<*count; x++) {
for (idx=0; idx<*count; idx++) {
// Get an item: try fast way first.
if (isFast) {
o = PySequence_Fast_GET_ITEM(source, x);
o = PySequence_Fast_GET_ITEM(source, idx);
}
else {
o = PySequence_GetItem(source, x);
o = PySequence_GetItem(source, idx);
if (o == NULL) {
goto error1;
}
@@ -2125,7 +2161,7 @@ wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
(PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
o1 = PySequence_Fast_GET_ITEM(o, 0);
o2 = PySequence_Fast_GET_ITEM(o, 1);
if (!wxPointFromObjects(o1, o2, &temp[x])) {
if (!wxPointFromObjects(o1, o2, &temp[idx])) {
goto error2;
}
}
@@ -2134,12 +2170,12 @@ wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPoint"))) {
goto error2;
}
temp[x] = *pt;
temp[idx] = *pt;
}
else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
o1 = PySequence_GetItem(o, 0);
o2 = PySequence_GetItem(o, 1);
if (!wxPointFromObjects(o1, o2, &temp[x])) {
if (!wxPointFromObjects(o1, o2, &temp[idx])) {
goto error3;
}
Py_DECREF(o1);
@@ -2166,8 +2202,91 @@ error0:
PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoints.");
return NULL;
}
// end of patch
//------------------------------
wxPoint2D* wxPoint2D_LIST_helper(PyObject* source, size_t *count)
{
size_t idx;
wxPoint2D* temp;
PyObject *o, *o1, *o2;
bool isFast = PyList_Check(source) || PyTuple_Check(source);
if (!PySequence_Check(source)) {
goto error0;
}
// The length of the sequence is returned in count.
*count = PySequence_Length(source);
if (*count < 0) {
goto error0;
}
temp = new wxPoint2D[*count];
if (!temp) {
PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
return NULL;
}
for (idx=0; idx<*count; idx++) {
// Get an item: try fast way first.
if (isFast) {
o = PySequence_Fast_GET_ITEM(source, idx);
}
else {
o = PySequence_GetItem(source, idx);
if (o == NULL) {
goto error1;
}
}
// Convert o to wxPoint.
if ((PyTuple_Check(o) && PyTuple_GET_SIZE(o) == 2) ||
(PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
o1 = PySequence_Fast_GET_ITEM(o, 0);
o2 = PySequence_Fast_GET_ITEM(o, 1);
if (!wxPoint2DFromObjects(o1, o2, &temp[idx])) {
goto error2;
}
}
else if (wxPySwigInstance_Check(o)) {
wxPoint2D* pt;
if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPoint2D"))) {
goto error2;
}
temp[idx] = *pt;
}
else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
o1 = PySequence_GetItem(o, 0);
o2 = PySequence_GetItem(o, 1);
if (!wxPoint2DFromObjects(o1, o2, &temp[idx])) {
goto error3;
}
Py_DECREF(o1);
Py_DECREF(o2);
}
else {
goto error2;
}
// Clean up.
if (!isFast)
Py_DECREF(o);
}
return temp;
error3:
Py_DECREF(o1);
Py_DECREF(o2);
error2:
if (!isFast)
Py_DECREF(o);
error1:
delete [] temp;
error0:
PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoint2Ds.");
return NULL;
}
//---------------------------------------------------------------------------
wxBitmap** wxBitmap_LIST_helper(PyObject* source) {
@@ -2612,8 +2731,8 @@ bool wxPoint2D_helper(PyObject* source, wxPoint2D** obj) {
//----------------------------------------------------------------------
PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
PyObject* wxArrayString2PyList_helper(const wxArrayString& arr)
{
PyObject* list = PyList_New(0);
for (size_t i=0; i < arr.GetCount(); i++) {
#if wxUSE_UNICODE
@@ -2628,8 +2747,8 @@ PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
}
PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) {
PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr)
{
PyObject* list = PyList_New(0);
for (size_t i=0; i < arr.GetCount(); i++) {
PyObject* number = PyInt_FromLong(arr[i]);
@@ -2640,6 +2759,18 @@ PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) {
}
PyObject* wxArrayDouble2PyList_helper(const wxArrayDouble& arr)
{
PyObject* list = PyList_New(0);
for (size_t i=0; i < arr.GetCount(); i++) {
PyObject* number = PyFloat_FromDouble(arr[i]);
PyList_Append(list, number);
Py_DECREF(number);
}
return list;
}
//----------------------------------------------------------------------
// wxPyImageHandler methods
//