1 /* brushlib - The MyPaint Brush Library
2 * Copyright (C) 2011 Martin Renold <martinxyz@gmx.ch>
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 class PythonBrush : public Brush {
20 // get state as numpy array
21 PyObject * python_get_state ()
23 npy_intp dims = {STATE_COUNT};
24 PyObject * data = PyArray_SimpleNew(1, &dims, NPY_FLOAT32);
25 npy_float32 * data_p = (npy_float32*)PyArray_DATA(data);
26 for (int i=0; i<STATE_COUNT; i++) {
27 data_p[i] = get_state(i);
32 // set state from numpy array
33 void python_set_state (PyObject * data)
35 assert(PyArray_NDIM(data) == 1);
36 assert(PyArray_DIM(data, 0) == STATE_COUNT);
37 assert(PyArray_ISCARRAY(data));
38 npy_float32 * data_p = (npy_float32*)PyArray_DATA(data);
39 for (int i=0; i<STATE_COUNT; i++) {
40 set_state(i, data_p[i]);
44 // same as stroke_to() but with exception handling, should an
45 // exception happen in the surface code (eg. out-of-memory)
46 PyObject* python_stroke_to (Surface * surface, float x, float y, float pressure, float xtilt, float ytilt, double dtime)
48 bool res = stroke_to (surface, x, y, pressure, xtilt, ytilt, dtime);
49 if (PyErr_Occurred()) {