diff options
Diffstat (limited to 'src/pycairo-matrix.c')
| -rw-r--r-- | src/pycairo-matrix.c | 405 |
1 files changed, 194 insertions, 211 deletions
diff --git a/src/pycairo-matrix.c b/src/pycairo-matrix.c index 73f1845..8daa6dc 100644 --- a/src/pycairo-matrix.c +++ b/src/pycairo-matrix.c @@ -1,4 +1,4 @@ -/* -*- mode: C; c-basic-offset: 4 -*- +/* -*- mode: C; c-basic-offset: 2 -*- * * Pycairo - Python bindings for cairo * @@ -43,204 +43,189 @@ * Return value: New reference or NULL on failure */ PyObject * -PycairoMatrix_FromMatrix (const cairo_matrix_t *matrix) -{ - PyObject *o; - assert (matrix != NULL); - o = PycairoMatrix_Type.tp_alloc (&PycairoMatrix_Type, 0); - if (o != NULL) - ((PycairoMatrix *)o)->matrix = *matrix; - return o; +PycairoMatrix_FromMatrix (const cairo_matrix_t *matrix) { + PyObject *o; + assert (matrix != NULL); + o = PycairoMatrix_Type.tp_alloc (&PycairoMatrix_Type, 0); + if (o != NULL) + ((PycairoMatrix *)o)->matrix = *matrix; + return o; } static void -matrix_dealloc (PycairoMatrix *o) -{ - o->ob_type->tp_free((PyObject *)o); +matrix_dealloc (PycairoMatrix *o) { + o->ob_type->tp_free((PyObject *)o); } static PyObject * -matrix_new (PyTypeObject *type, PyObject *args, PyObject *kwds) -{ - PyObject *o; - static char *kwlist[] = { "xx", "yx", "xy", "yy", "x0", "y0", NULL }; - double xx = 1.0, yx = 0.0, xy = 0.0, yy = 1.0, x0 = 0.0, y0 = 0.0; - - if (!PyArg_ParseTupleAndKeywords(args, kwds, - "|dddddd:Matrix.__init__", kwlist, - &xx, &yx, &xy, &yy, &x0, &y0)) - return NULL; - - o = type->tp_alloc(type, 0); - if (o) - cairo_matrix_init (&((PycairoMatrix *)o)->matrix, - xx, yx, xy, yy, x0, y0); - return o; +matrix_new (PyTypeObject *type, PyObject *args, PyObject *kwds) { + PyObject *o; + static char *kwlist[] = { "xx", "yx", "xy", "yy", "x0", "y0", NULL }; + double xx = 1.0, yx = 0.0, xy = 0.0, yy = 1.0, x0 = 0.0, y0 = 0.0; + + if (!PyArg_ParseTupleAndKeywords(args, kwds, + "|dddddd:Matrix.__init__", kwlist, + &xx, &yx, &xy, &yy, &x0, &y0)) + return NULL; + + o = type->tp_alloc(type, 0); + if (o) + cairo_matrix_init (&((PycairoMatrix *)o)->matrix, + xx, yx, xy, yy, x0, y0); + return o; } static PyObject * -matrix_init_rotate (PyTypeObject *type, PyObject *args) -{ - cairo_matrix_t matrix; - double radians; +matrix_init_rotate (PyTypeObject *type, PyObject *args) { + cairo_matrix_t matrix; + double radians; - if (!PyArg_ParseTuple(args, "d:Matrix.init_rotate", &radians)) - return NULL; + if (!PyArg_ParseTuple(args, "d:Matrix.init_rotate", &radians)) + return NULL; - cairo_matrix_init_rotate (&matrix, radians); - return PycairoMatrix_FromMatrix (&matrix); + cairo_matrix_init_rotate (&matrix, radians); + return PycairoMatrix_FromMatrix (&matrix); } static PyObject * -matrix_invert (PycairoMatrix *o) -{ - if (Pycairo_Check_Status (cairo_matrix_invert (&o->matrix))) - return NULL; - Py_RETURN_NONE; +matrix_invert (PycairoMatrix *o) { + if (Pycairo_Check_Status (cairo_matrix_invert (&o->matrix))) + return NULL; + Py_RETURN_NONE; } /* cairo_matrix_multiply */ static PyObject * -matrix_multiply (PycairoMatrix *o, PyObject *args) -{ - PycairoMatrix *mx2; +matrix_multiply (PycairoMatrix *o, PyObject *args) { + PycairoMatrix *mx2; - if (!PyArg_ParseTuple(args, "O!:Matrix.multiply", - &PycairoMatrix_Type, &mx2)) - return NULL; + if (!PyArg_ParseTuple(args, "O!:Matrix.multiply", + &PycairoMatrix_Type, &mx2)) + return NULL; - cairo_matrix_t result; - cairo_matrix_multiply (&result, &o->matrix, &mx2->matrix); - return PycairoMatrix_FromMatrix (&result); + cairo_matrix_t result; + cairo_matrix_multiply (&result, &o->matrix, &mx2->matrix); + return PycairoMatrix_FromMatrix (&result); } /* standard matrix multiply, for use by '*' operator */ static PyObject * -matrix_operator_multiply (PycairoMatrix *o, PycairoMatrix *o2) -{ - cairo_matrix_t result; - cairo_matrix_multiply (&result, &o->matrix, &o2->matrix); - return PycairoMatrix_FromMatrix (&result); +matrix_operator_multiply (PycairoMatrix *o, PycairoMatrix *o2) { + cairo_matrix_t result; + cairo_matrix_multiply (&result, &o->matrix, &o2->matrix); + return PycairoMatrix_FromMatrix (&result); } static PyObject * -matrix_repr (PycairoMatrix *o) -{ - char buf[256]; - - PyOS_snprintf(buf, sizeof(buf), "cairo.Matrix(%g, %g, %g, %g, %g, %g)", - o->matrix.xx, o->matrix.yx, - o->matrix.xy, o->matrix.yy, - o->matrix.x0, o->matrix.y0); - return PyString_FromString(buf); +matrix_repr (PycairoMatrix *o) { + char buf[256]; + + PyOS_snprintf(buf, sizeof(buf), "cairo.Matrix(%g, %g, %g, %g, %g, %g)", + o->matrix.xx, o->matrix.yx, + o->matrix.xy, o->matrix.yy, + o->matrix.x0, o->matrix.y0); + return PyString_FromString(buf); } static PyObject * -matrix_richcmp (PycairoMatrix *m1, PycairoMatrix *m2, int op) -{ - int equal; - PyObject *ret; - cairo_matrix_t *mx1 = &m1->matrix; - cairo_matrix_t *mx2 = &m2->matrix; - - if (!PyObject_TypeCheck(m2, &PycairoMatrix_Type) || - !(op == Py_EQ || op == Py_NE)) { - Py_INCREF(Py_NotImplemented); - return Py_NotImplemented; - } - - equal = mx1->xx == mx2->xx && mx1->yx == mx2->yx && - mx1->xy == mx2->xy && mx1->yy == mx2->yy && - mx1->x0 == mx2->x0 && mx1->y0 == mx2->y0; - - if (op == Py_EQ) - ret = equal ? Py_True : Py_False; - else - ret = equal ? Py_False : Py_True; - Py_INCREF(ret); - return ret; +matrix_richcmp (PycairoMatrix *m1, PycairoMatrix *m2, int op) { + int equal; + PyObject *ret; + cairo_matrix_t *mx1 = &m1->matrix; + cairo_matrix_t *mx2 = &m2->matrix; + + if (!PyObject_TypeCheck(m2, &PycairoMatrix_Type) || + !(op == Py_EQ || op == Py_NE)) { + Py_INCREF(Py_NotImplemented); + return Py_NotImplemented; + } + + equal = mx1->xx == mx2->xx && mx1->yx == mx2->yx && + mx1->xy == mx2->xy && mx1->yy == mx2->yy && + mx1->x0 == mx2->x0 && mx1->y0 == mx2->y0; + + if (op == Py_EQ) + ret = equal ? Py_True : Py_False; + else + ret = equal ? Py_False : Py_True; + Py_INCREF(ret); + return ret; } static PyObject * -matrix_rotate (PycairoMatrix *o, PyObject *args) -{ - double radians; +matrix_rotate (PycairoMatrix *o, PyObject *args) { + double radians; - if (!PyArg_ParseTuple(args, "d:Matrix.rotate", &radians)) - return NULL; + if (!PyArg_ParseTuple(args, "d:Matrix.rotate", &radians)) + return NULL; - cairo_matrix_rotate (&o->matrix, radians); - Py_RETURN_NONE; + cairo_matrix_rotate (&o->matrix, radians); + Py_RETURN_NONE; } static PyObject * -matrix_scale (PycairoMatrix *o, PyObject *args) -{ - double sx, sy; +matrix_scale (PycairoMatrix *o, PyObject *args) { + double sx, sy; - if (!PyArg_ParseTuple(args, "dd:Matrix.scale", &sx, &sy)) - return NULL; + if (!PyArg_ParseTuple(args, "dd:Matrix.scale", &sx, &sy)) + return NULL; - cairo_matrix_scale (&o->matrix, sx, sy); - Py_RETURN_NONE; + cairo_matrix_scale (&o->matrix, sx, sy); + Py_RETURN_NONE; } static PyObject * -matrix_transform_distance (PycairoMatrix *o, PyObject *args) -{ - double dx, dy; +matrix_transform_distance (PycairoMatrix *o, PyObject *args) { + double dx, dy; - if (!PyArg_ParseTuple(args, "dd:Matrix.transform_distance", &dx, &dy)) - return NULL; + if (!PyArg_ParseTuple(args, "dd:Matrix.transform_distance", &dx, &dy)) + return NULL; - cairo_matrix_transform_distance (&o->matrix, &dx, &dy); - return Py_BuildValue("(dd)", dx, dy); + cairo_matrix_transform_distance (&o->matrix, &dx, &dy); + return Py_BuildValue("(dd)", dx, dy); } static PyObject * -matrix_transform_point (PycairoMatrix *o, PyObject *args) -{ - double x, y; +matrix_transform_point (PycairoMatrix *o, PyObject *args) { + double x, y; - if (!PyArg_ParseTuple(args, "dd:Matrix.transform_point", &x, &y)) - return NULL; + if (!PyArg_ParseTuple(args, "dd:Matrix.transform_point", &x, &y)) + return NULL; - cairo_matrix_transform_point (&o->matrix, &x, &y); - return Py_BuildValue("(dd)", x, y); + cairo_matrix_transform_point (&o->matrix, &x, &y); + return Py_BuildValue("(dd)", x, y); } static PyObject * -matrix_translate (PycairoMatrix *o, PyObject *args) -{ - double tx, ty; +matrix_translate (PycairoMatrix *o, PyObject *args) { + double tx, ty; - if (!PyArg_ParseTuple(args, "dd:Matrix.translate", &tx, &ty)) - return NULL; + if (!PyArg_ParseTuple(args, "dd:Matrix.translate", &tx, &ty)) + return NULL; - cairo_matrix_translate (&o->matrix, tx, ty); - Py_RETURN_NONE; + cairo_matrix_translate (&o->matrix, tx, ty); + Py_RETURN_NONE; } static PyObject * -matrix_item (PycairoMatrix *o, Py_ssize_t i) -{ - switch (i) { - case 0: - return Py_BuildValue("d", o->matrix.xx); - case 1: - return Py_BuildValue("d", o->matrix.yx); - case 2: - return Py_BuildValue("d", o->matrix.xy); - case 3: - return Py_BuildValue("d", o->matrix.yy); - case 4: - return Py_BuildValue("d", o->matrix.x0); - case 5: - return Py_BuildValue("d", o->matrix.y0); - default: - PyErr_SetString(PyExc_IndexError, "Matrix index out of range"); - return NULL; - } +matrix_item (PycairoMatrix *o, Py_ssize_t i) { + switch (i) { + case 0: + return Py_BuildValue("d", o->matrix.xx); + case 1: + return Py_BuildValue("d", o->matrix.yx); + case 2: + return Py_BuildValue("d", o->matrix.xy); + case 3: + return Py_BuildValue("d", o->matrix.yy); + case 4: + return Py_BuildValue("d", o->matrix.x0); + case 5: + return Py_BuildValue("d", o->matrix.y0); + default: + PyErr_SetString(PyExc_IndexError, "Matrix index out of range"); + return NULL; + } } static PyNumberMethods matrix_as_number = { @@ -286,80 +271,78 @@ static PyNumberMethods matrix_as_number = { }; static PySequenceMethods matrix_as_sequence = { - 0, /* sq_length */ - 0, /* sq_concat */ - 0, /* sq_repeat */ - (ssizeargfunc)matrix_item, /* sq_item */ - 0, /* sq_slice */ - 0, /* sq_ass_item */ - 0, /* sq_ass_slice */ - 0, /* sq_contains */ + 0, /* sq_length */ + 0, /* sq_concat */ + 0, /* sq_repeat */ + (ssizeargfunc)matrix_item, /* sq_item */ + 0, /* sq_slice */ + 0, /* sq_ass_item */ + 0, /* sq_ass_slice */ + 0, /* sq_contains */ }; static PyMethodDef matrix_methods[] = { - /* Do not need to wrap all cairo_matrix_init_*() functions - * C API Matrix constructors Python equivalents - * cairo_matrix_init() cairo.Matrix(xx,yx,xy,yy,x0,y0) - * cairo_matrix_init_rotate() cairo.Matrix.init_rotate(radians) - - * cairo_matrix_init_identity() cairo.Matrix() - * cairo_matrix_init_translate() cairo.Matrix(x0=x0,y0=y0) - * cairo_matrix_init_scale() cairo.Matrix(xx=xx,yy=yy) - */ - {"init_rotate", (PyCFunction)matrix_init_rotate, - METH_VARARGS | METH_CLASS }, - {"invert", (PyCFunction)matrix_invert, METH_NOARGS }, - {"multiply", (PyCFunction)matrix_multiply, METH_VARARGS }, - {"rotate", (PyCFunction)matrix_rotate, METH_VARARGS }, - {"scale", (PyCFunction)matrix_scale, METH_VARARGS }, - {"transform_distance",(PyCFunction)matrix_transform_distance, - METH_VARARGS }, - {"transform_point", (PyCFunction)matrix_transform_point, METH_VARARGS }, - {"translate", (PyCFunction)matrix_translate, METH_VARARGS }, - {NULL, NULL, 0, NULL}, + /* Do not need to wrap all cairo_matrix_init_*() functions + * C API Matrix constructors Python equivalents + * cairo_matrix_init() cairo.Matrix(xx,yx,xy,yy,x0,y0) + * cairo_matrix_init_rotate() cairo.Matrix.init_rotate(radians) + + * cairo_matrix_init_identity() cairo.Matrix() + * cairo_matrix_init_translate() cairo.Matrix(x0=x0,y0=y0) + * cairo_matrix_init_scale() cairo.Matrix(xx=xx,yy=yy) + */ + {"init_rotate", (PyCFunction)matrix_init_rotate, METH_VARARGS | METH_CLASS }, + {"invert", (PyCFunction)matrix_invert, METH_NOARGS }, + {"multiply", (PyCFunction)matrix_multiply, METH_VARARGS }, + {"rotate", (PyCFunction)matrix_rotate, METH_VARARGS }, + {"scale", (PyCFunction)matrix_scale, METH_VARARGS }, + {"transform_distance",(PyCFunction)matrix_transform_distance, METH_VARARGS }, + {"transform_point", (PyCFunction)matrix_transform_point, METH_VARARGS }, + {"translate", (PyCFunction)matrix_translate, METH_VARARGS }, + {NULL, NULL, 0, NULL}, }; PyTypeObject PycairoMatrix_Type = { - PyObject_HEAD_INIT(NULL) - 0, /* ob_size */ - "cairo.Matrix", /* tp_name */ - sizeof(PycairoMatrix), /* tp_basicsize */ - 0, /* tp_itemsize */ - (destructor)matrix_dealloc, /* tp_dealloc */ - 0, /* tp_print */ - 0, /* tp_getattr */ - 0, /* tp_setattr */ - 0, /* tp_compare */ - (reprfunc)matrix_repr, /* tp_repr */ - &matrix_as_number, /* tp_as_number */ - &matrix_as_sequence, /* tp_as_sequence */ - 0, /* tp_as_mapping */ - 0, /* tp_hash */ - 0, /* tp_call */ - 0, /* tp_str */ - 0, /* tp_getattro */ - 0, /* tp_setattro */ - 0, /* tp_as_buffer */ - Py_TPFLAGS_DEFAULT, /* tp_flags */ - NULL, /* tp_doc */ - 0, /* tp_traverse */ - 0, /* tp_clear */ - (richcmpfunc)matrix_richcmp, /* tp_richcompare */ - 0, /* tp_weaklistoffset */ - 0, /* tp_iter */ - 0, /* tp_iternext */ - matrix_methods, /* tp_methods */ - 0, /* tp_members */ - 0, /* tp_getset */ - 0, /* &PyBaseObject_Type, */ /* tp_base */ - 0, /* tp_dict */ - 0, /* tp_descr_get */ - 0, /* tp_descr_set */ - 0, /* tp_dictoffset */ - 0, /* tp_init */ - 0, /* tp_alloc */ - (newfunc)matrix_new, /* tp_new */ - 0, /* tp_free */ - 0, /* tp_is_gc */ - 0, /* tp_bases */ + PyObject_HEAD_INIT(NULL) + 0, /* ob_size */ + "cairo.Matrix", /* tp_name */ + sizeof(PycairoMatrix), /* tp_basicsize */ + 0, /* tp_itemsize */ + (destructor)matrix_dealloc, /* tp_dealloc */ + 0, /* tp_print */ + 0, /* tp_getattr */ + 0, /* tp_setattr */ + 0, /* tp_compare */ + (reprfunc)matrix_repr, /* tp_repr */ + &matrix_as_number, /* tp_as_number */ + &matrix_as_sequence, /* tp_as_sequence */ + 0, /* tp_as_mapping */ + 0, /* tp_hash */ + 0, /* tp_call */ + 0, /* tp_str */ + 0, /* tp_getattro */ + 0, /* tp_setattro */ + 0, /* tp_as_buffer */ + Py_TPFLAGS_DEFAULT, /* tp_flags */ + NULL, /* tp_doc */ + 0, /* tp_traverse */ + 0, /* tp_clear */ + (richcmpfunc)matrix_richcmp, /* tp_richcompare */ + 0, /* tp_weaklistoffset */ + 0, /* tp_iter */ + 0, /* tp_iternext */ + matrix_methods, /* tp_methods */ + 0, /* tp_members */ + 0, /* tp_getset */ + 0, /* &PyBaseObject_Type, */ /* tp_base */ + 0, /* tp_dict */ + 0, /* tp_descr_get */ + 0, /* tp_descr_set */ + 0, /* tp_dictoffset */ + 0, /* tp_init */ + 0, /* tp_alloc */ + (newfunc)matrix_new, /* tp_new */ + 0, /* tp_free */ + 0, /* tp_is_gc */ + 0, /* tp_bases */ }; |