File: dimobject.cpp

package info (click to toggle)
gamera 1%3A3.4.3-1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 15,912 kB
  • sloc: xml: 122,324; cpp: 50,730; python: 35,044; ansic: 258; makefile: 114; sh: 101
file content (155 lines) | stat: -rw-r--r-- 4,578 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
/*
 *
 * Copyright (C) 2001-2005 Ichiro Fujinaga, Michael Droettboom, and Karl MacMillan
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#define GAMERACORE_INTERNAL
#include "gameramodule.hpp"

using namespace Gamera;

extern "C" {
  static PyObject* dim_new(PyTypeObject* pytype, PyObject* args,
			    PyObject* kwds);
  static void dim_dealloc(PyObject* self);
  static int dim_set_nrows(PyObject* self, PyObject* value);
  static PyObject* dim_get_nrows(PyObject* self);
  static int dim_set_ncols(PyObject* self, PyObject* value);
  static PyObject* dim_get_ncols(PyObject* self);
  static PyObject* dim_richcompare(PyObject* a, PyObject* b, int op);
  static PyObject* dim_repr(PyObject* self);
}

static PyTypeObject DimType = {
  PyObject_HEAD_INIT(NULL)
  0,
};

static PyGetSetDef dim_getset[] = {
  { (char *)"nrows", (getter)dim_get_nrows, (setter)dim_set_nrows,
    (char *)"(int property get/set)\n\nThe current number of rows", 0},
  { (char *)"ncols", (getter)dim_get_ncols, (setter)dim_set_ncols,
    (char *)"(int property get/set)\n\nthe current number of columns", 0},
  { NULL }
};

PyTypeObject* get_DimType() {
  return &DimType;
}

static PyObject* dim_new(PyTypeObject* pytype, PyObject* args,
			  PyObject* kwds) {
  int x, y;
  if (PyArg_ParseTuple(args, CHAR_PTR_CAST "ii:Dim.__init__", &x, &y) <= 0)
    return 0;
  DimObject* so;
  so = (DimObject*)pytype->tp_alloc(pytype, 0);
  so->m_x = new Dim((size_t)x, (size_t)y);
  return (PyObject*)so;
}

static void dim_dealloc(PyObject* self) {
  DimObject* x = (DimObject*)self;
  delete x->m_x;
  self->ob_type->tp_free(self);
}

#define CREATE_GET_FUNC(name) static PyObject* dim_get_##name(PyObject* self) {\
  Dim* x = ((DimObject*)self)->m_x; \
  return PyInt_FromLong((int)x->name()); \
}

#define CREATE_SET_FUNC(name) static int dim_set_##name(PyObject* self, PyObject* value) {\
  Dim* x = ((DimObject*)self)->m_x; \
  x->name((size_t)PyInt_AS_LONG(value)); \
  return 0; \
}

CREATE_GET_FUNC(nrows)
CREATE_SET_FUNC(nrows)
CREATE_GET_FUNC(ncols)
CREATE_SET_FUNC(ncols)

static PyObject* dim_richcompare(PyObject* a, PyObject* b, int op) {
  if (!is_DimObject(a) || !is_DimObject(b)) {
    Py_INCREF(Py_NotImplemented);
    return Py_NotImplemented;
  }

  Dim& ap = *((DimObject*)a)->m_x;
  Dim& bp = *((DimObject*)b)->m_x;

  /*
    Only equality and inequality make sense.
  */
  bool cmp;
  switch (op) {
  case Py_LT:
    Py_INCREF(Py_NotImplemented);
    return Py_NotImplemented;
  case Py_LE:
    Py_INCREF(Py_NotImplemented);
    return Py_NotImplemented;
  case Py_EQ:
    cmp = ap == bp;
    break;
  case Py_NE:
    cmp = ap != bp;
    break;
  case Py_GT:
    Py_INCREF(Py_NotImplemented);
    return Py_NotImplemented;
  case Py_GE:
    Py_INCREF(Py_NotImplemented);
    return Py_NotImplemented;
  default:
    return 0; // cannot happen
  }
  if (cmp) {
    Py_INCREF(Py_True);
    return Py_True;
  } else {
    Py_INCREF(Py_False);
    return Py_False;
  }
}

static PyObject* dim_repr(PyObject* self) {
  Dim* x = ((DimObject*)self)->m_x;
  return PyString_FromFormat("Dim(%i, %i)",
			     (int)x->ncols(), (int)x->nrows());
}

void init_DimType(PyObject* module_dict) {
  DimType.ob_type = &PyType_Type;
  DimType.tp_name = CHAR_PTR_CAST "gameracore.Dim";
  DimType.tp_basicsize = sizeof(DimObject);
  DimType.tp_dealloc = dim_dealloc;
  DimType.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE;
  DimType.tp_new = dim_new;
  DimType.tp_getattro = PyObject_GenericGetAttr;
  DimType.tp_alloc = NULL; // PyType_GenericAlloc;
  DimType.tp_richcompare = dim_richcompare;
  DimType.tp_getset = dim_getset;
  DimType.tp_free = NULL; // _PyObject_Del;
  DimType.tp_repr = dim_repr;
  DimType.tp_doc = CHAR_PTR_CAST
"__init__(Int *ncols*, Int *nrows*)\n\n"
"Dim stores a dimension (*ncols*, *nrows*)\n\n";
  PyType_Ready(&DimType);
  PyDict_SetItemString(module_dict, "Dim", (PyObject*)&DimType);
}