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gimp/plug-ins/pygimp/pygimp-tile.c

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/* -*- Mode: C; c-basic-offset: 4 -*-
* Gimp-Python - allows the writing of Gimp plugins in Python.
* Copyright (C) 1997-2002 James Henstridge <james@daa.com.au>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "pygimp.h"
#define NO_IMPORT_PYGIMPCOLOR
#include "pygimpcolor-api.h"
#include <structmember.h>
static PyObject *
tile_flush(PyGimpTile *self, PyObject *args)
{
if (!PyArg_ParseTuple(args, ":flush"))
return NULL;
gimp_tile_flush(self->tile);
Py_INCREF(Py_None);
return Py_None;
}
static PyMethodDef tile_methods[] = {
{"flush", (PyCFunction)tile_flush, METH_VARARGS},
{NULL, NULL} /* sentinel */
};
/* ---------- */
PyObject *
pygimp_tile_new(GimpTile *t, PyGimpDrawable *drw)
{
PyGimpTile *self;
self = PyObject_NEW(PyGimpTile, &PyGimpTile_Type);
if (self == NULL)
return NULL;
gimp_tile_ref(t);
self->tile = t;
Py_INCREF(drw);
self->drawable = drw;
return (PyObject *)self;
}
static void
tile_dealloc(PyGimpTile *self)
{
gimp_tile_unref(self->tile, FALSE);
Py_DECREF(self->drawable);
PyObject_DEL(self);
}
static PyObject *
tile_get_uint_field(PyGimpTile *self, void *closure)
{
gint offset = GPOINTER_TO_INT(closure);
guint value;
gchar *addr;
addr = (gchar *)self->tile;
addr += offset;
value = *(guint *)addr;
return PyInt_FromLong(value);
}
static PyObject *
tile_get_dirty(PyGimpTile *self, void *closure)
{
return PyBool_FromLong(self->tile->dirty);
}
static PyObject *
tile_get_shadow(PyGimpTile *self, void *closure)
{
return PyBool_FromLong(self->tile->shadow);
}
static PyObject *
tile_get_drawable(PyGimpTile *self, void *closure)
{
return pygimp_drawable_new(self->tile->drawable, 0);
}
#define OFF(x) GINT_TO_POINTER(offsetof(GimpTile, x))
static PyGetSetDef tile_getsets[] = {
{ "ewidth", (getter)tile_get_uint_field, 0, NULL, OFF(ewidth) },
{ "eheight", (getter)tile_get_uint_field, 0, NULL, OFF(eheight) },
{ "bpp", (getter)tile_get_uint_field, 0, NULL, OFF(bpp) },
{ "tile_num", (getter)tile_get_uint_field, 0, NULL, OFF(tile_num) },
{ "dirty", (getter)tile_get_dirty, 0, NULL },
{ "shadow", (getter)tile_get_shadow, 0, NULL },
{ "drawable", (getter)tile_get_drawable, 0, NULL },
{ NULL, (getter)0, (setter)0 }
};
#undef OFF
static PyObject *
tile_repr(PyGimpTile *self)
{
PyObject *s;
gchar *name;
name = gimp_item_get_name(self->tile->drawable->drawable_id);
if (self->tile->shadow)
s = PyString_FromFormat("<gimp.Tile for drawable '%s' (shadow)>", name);
else
s = PyString_FromFormat("<gimp.Tile for drawable '%s'>", name);
g_free(name);
return s;
}
static Py_ssize_t
tile_length(PyObject *self)
{
return ((PyGimpTile*)self)->tile->ewidth * ((PyGimpTile*)self)->tile->eheight;
}
static PyObject *
tile_subscript(PyGimpTile *self, PyObject *sub)
{
GimpTile *tile = self->tile;
int bpp = tile->bpp;
long x, y;
if (PyInt_Check(sub)) {
x = PyInt_AsLong(sub);
if (x < 0 || x >= tile->ewidth * tile->eheight) {
PyErr_SetString(PyExc_IndexError, "index out of range");
return NULL;
}
return PyString_FromStringAndSize
((char *)tile->data + bpp * x, bpp);
}
if (PyTuple_Check(sub)) {
if (!PyArg_ParseTuple(sub, "ll", &x, &y))
return NULL;
if (x < 0 || y < 0 || x >= tile->ewidth || y>=tile->eheight) {
PyErr_SetString(PyExc_IndexError, "index out of range");
return NULL;
}
return PyString_FromStringAndSize
((char *)tile->data + bpp * (x + y * tile->ewidth), bpp);
}
PyErr_SetString(PyExc_TypeError, "tile subscript not int or 2-tuple");
return NULL;
}
static int
tile_ass_sub(PyGimpTile *self, PyObject *v, PyObject *w)
{
GimpTile *tile = self->tile;
int bpp = tile->bpp, i;
long x, y;
guchar *pix, *data;
if (w == NULL) {
PyErr_SetString(PyExc_TypeError,
"can not delete pixels in tile");
return -1;
}
if (!PyString_Check(w) && PyString_Size(w) == bpp) {
PyErr_SetString(PyExc_TypeError, "invalid subscript");
return -1;
}
pix = (guchar *)PyString_AsString(w);
if (PyInt_Check(v)) {
x = PyInt_AsLong(v);
if (x < 0 || x >= tile->ewidth * tile->eheight) {
PyErr_SetString(PyExc_IndexError, "index out of range");
return -1;
}
data = tile->data + x * bpp;
for (i = 0; i < bpp; i++)
data[i] = pix[i];
tile->dirty = TRUE;
return 0;
}
if (PyTuple_Check(v)) {
if (!PyArg_ParseTuple(v, "ll", &x, &y))
return -1;
if (x < 0 || y < 0 || x >= tile->ewidth || y>=tile->eheight) {
PyErr_SetString(PyExc_IndexError, "index out of range");
return -1;
}
data = tile->data + bpp * (x + y * tile->ewidth);
for (i = 0; i < bpp; i++)
data[i] = pix[i];
tile->dirty = TRUE;
return 0;
}
PyErr_SetString(PyExc_TypeError, "tile subscript not int or 2-tuple");
return -1;
}
static PyMappingMethods tile_as_mapping = {
tile_length, /*length*/
(binaryfunc)tile_subscript, /*subscript*/
(objobjargproc)tile_ass_sub, /*ass_sub*/
};
PyTypeObject PyGimpTile_Type = {
PyObject_HEAD_INIT(NULL)
0, /* ob_size */
"gimp.Tile", /* tp_name */
sizeof(PyGimpTile), /* tp_basicsize */
0, /* tp_itemsize */
/* methods */
(destructor)tile_dealloc, /* tp_dealloc */
(printfunc)0, /* tp_print */
(getattrfunc)0, /* tp_getattr */
(setattrfunc)0, /* tp_setattr */
(cmpfunc)0, /* tp_compare */
(reprfunc)tile_repr, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
&tile_as_mapping, /* tp_as_mapping */
(hashfunc)0, /* tp_hash */
(ternaryfunc)0, /* tp_call */
(reprfunc)0, /* tp_str */
(getattrofunc)0, /* tp_getattro */
(setattrofunc)0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT, /* tp_flags */
NULL, /* Documentation string */
(traverseproc)0, /* tp_traverse */
(inquiry)0, /* tp_clear */
(richcmpfunc)0, /* tp_richcompare */
0, /* tp_weaklistoffset */
(getiterfunc)0, /* tp_iter */
(iternextfunc)0, /* tp_iternext */
tile_methods, /* tp_methods */
0, /* tp_members */
tile_getsets, /* tp_getset */
(PyTypeObject *)0, /* tp_base */
(PyObject *)0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
(initproc)0, /* tp_init */
(allocfunc)0, /* tp_alloc */
(newfunc)0, /* tp_new */
};
/* End of code for Tile objects */
/* -------------------------------------------------------- */
static PyObject *
pr_resize(PyGimpPixelRgn *self, PyObject *args)
{
int x, y, w, h;
if (!PyArg_ParseTuple(args, "iiii:resize", &x, &y, &w, &h))
return NULL;
gimp_pixel_rgn_resize(&(self->pr), x, y, w, h);
Py_INCREF(Py_None);
return Py_None;
}
static PyMethodDef pr_methods[] = {
{"resize", (PyCFunction)pr_resize, METH_VARARGS},
{NULL, NULL} /* sentinel */
};
/* ---------- */
PyObject *
pygimp_pixel_rgn_new(PyGimpDrawable *drawable, int x, int y,
int width, int height, int dirty, int shadow)
{
PyGimpPixelRgn *self;
int drw_width;
int drw_height;
self = PyObject_NEW(PyGimpPixelRgn, &PyGimpPixelRgn_Type);
if (self == NULL || drawable == NULL)
return NULL;
drw_width = gimp_drawable_width(drawable->ID);
drw_height = gimp_drawable_height(drawable->ID);
if(x < 0) x = 0;
if(y < 0) y = 0;
if(width < 0) width = drw_width - x;
if(height < 0) height = drw_height - y;
if(x >= drw_width) x = drw_width - 1;
if(y >= drw_height) y = drw_height - 1;
if(x + width > drw_width) width = drw_width - x;
if(y + height > drw_height) height = drw_height - y;
gimp_pixel_rgn_init(&(self->pr), drawable->drawable, x, y, width, height,
dirty, shadow);
self->drawable = drawable;
Py_INCREF(drawable);
return (PyObject *)self;
}
static void
pr_dealloc(PyGimpPixelRgn *self)
{
Py_DECREF(self->drawable);
PyObject_DEL(self);
}
/* Code to access pr objects as mappings */
static Py_ssize_t
pr_length(PyObject *self)
{
PyErr_SetString(pygimp_error, "Can't get size of pixel region");
return -1;
}
static PyObject *
pr_subscript(PyGimpPixelRgn *self, PyObject *key)
{
GimpPixelRgn *pr = &(self->pr);
PyObject *x, *y;
Py_ssize_t x1, y1, x2, y2, xs, ys;
PyObject *ret;
if (!PyTuple_Check(key) || PyTuple_Size(key) != 2) {
PyErr_SetString(PyExc_TypeError, "subscript must be a 2-tuple");
return NULL;
}
if (!PyArg_ParseTuple(key, "OO", &x, &y))
return NULL;
if (PyInt_Check(x)) {
x1 = PyInt_AsSsize_t(x);
if (x1 < pr->x || x1 >= pr->x + pr->w) {
PyErr_SetString(PyExc_IndexError, "x subscript out of range");
return NULL;
}
if (PyInt_Check(y)) {
y1 = PyInt_AsSsize_t(y);
if (y1 < pr->y || y1 >= pr->y + pr->h) {
PyErr_SetString(PyExc_IndexError, "y subscript out of range");
return NULL;
}
ret = PyString_FromStringAndSize(NULL, pr->bpp);
gimp_pixel_rgn_get_pixel(pr, (guchar*)PyString_AS_STRING(ret),
x1, y1);
} else if (PySlice_Check(y)) {
if (PySlice_GetIndices((PySliceObject*)y, pr->y + pr->h,
&y1, &y2, &ys) ||
y1 >= y2 || ys != 1) {
PyErr_SetString(PyExc_IndexError, "invalid y slice");
return NULL;
}
if(y1 == 0)
y1 = pr->y;
if(y1 < pr->y || y2 < pr->y) {
PyErr_SetString(PyExc_IndexError, "y subscript out of range");
return NULL;
}
ret = PyString_FromStringAndSize(NULL, pr->bpp * (y2 - y1));
gimp_pixel_rgn_get_col(pr, (guchar*)PyString_AS_STRING(ret),
x1, y1, y2-y1);
}
else {
PyErr_SetString(PyExc_TypeError, "invalid y subscript");
return NULL;
}
} else if (PySlice_Check(x)) {
if (PySlice_GetIndices((PySliceObject *)x, pr->x + pr->w,
&x1, &x2, &xs) ||
x1 >= x2 || xs != 1) {
PyErr_SetString(PyExc_IndexError, "invalid x slice");
return NULL;
}
if (x1 == 0)
x1 = pr->x;
if(x1 < pr->x || x2 < pr->x) {
PyErr_SetString(PyExc_IndexError, "x subscript out of range");
return NULL;
}
if (PyInt_Check(y)) {
y1 = PyInt_AsSsize_t(y);
if (y1 < pr->y || y1 >= pr->y + pr->h) {
PyErr_SetString(PyExc_IndexError, "y subscript out of range");
return NULL;
}
ret = PyString_FromStringAndSize(NULL, pr->bpp * (x2 - x1));
gimp_pixel_rgn_get_row(pr, (guchar*)PyString_AS_STRING(ret),
x1, y1, x2 - x1);
} else if (PySlice_Check(y)) {
if (PySlice_GetIndices((PySliceObject*)y, pr->y + pr->h,
&y1, &y2, &ys) ||
y1 >= y2 || ys != 1) {
PyErr_SetString(PyExc_IndexError, "invalid y slice");
return NULL;
}
if(y1 == 0)
y1 = pr->y;
if(y1 < pr->y || y2 < pr->y) {
PyErr_SetString(PyExc_IndexError, "y subscript out of range");
return NULL;
}
ret = PyString_FromStringAndSize(NULL,
pr->bpp * (x2 - x1) * (y2 - y1));
gimp_pixel_rgn_get_rect(pr, (guchar*)PyString_AS_STRING(ret),
x1, y1, x2 - x1, y2 - y1);
}
else {
PyErr_SetString(PyExc_TypeError, "invalid y subscript");
return NULL;
}
} else {
PyErr_SetString(PyExc_TypeError, "invalid x subscript");
return NULL;
}
return ret;
}
static int
pr_ass_sub(PyGimpPixelRgn *self, PyObject *v, PyObject *w)
{
GimpPixelRgn *pr = &(self->pr);
PyObject *x, *y;
const guchar *buf;
Py_ssize_t len, x1, x2, xs, y1, y2, ys;
if (w == NULL) {
PyErr_SetString(PyExc_TypeError, "can't delete subscripts");
return -1;
}
if (!PyString_Check(w)) {
PyErr_SetString(PyExc_TypeError, "must assign string to subscript");
return -1;
}
if (!PyTuple_Check(v) || PyTuple_Size(v) != 2) {
PyErr_SetString(PyExc_TypeError, "subscript must be a 2-tuple");
return -1;
}
if (!PyArg_ParseTuple(v, "OO", &x, &y))
return -1;
buf = (const guchar *)PyString_AsString(w);
len = PyString_Size(w);
if (!buf || len > INT_MAX) {
return -1;
}
if (PyInt_Check(x)) {
x1 = PyInt_AsSsize_t(x);
if (x1 < pr->x || x1 >= pr->x + pr->w) {
PyErr_SetString(PyExc_IndexError, "x subscript out of range");
return -1;
}
if (PyInt_Check(y)) {
y1 = PyInt_AsSsize_t(y);
if (y1 < pr->y || y1 >= pr->y + pr->h) {
PyErr_SetString(PyExc_IndexError, "y subscript out of range");
return -1;
}
if (len != pr->bpp) {
PyErr_SetString(PyExc_TypeError, "string is wrong length");
return -1;
}
gimp_pixel_rgn_set_pixel(pr, buf, x1, y1);
} else if (PySlice_Check(y)) {
if (PySlice_GetIndices((PySliceObject *)y, pr->y + pr->h,
&y1, &y2, &ys) ||
y1 >= y2 || ys != 1) {
PyErr_SetString(PyExc_IndexError, "invalid y slice");
return -1;
}
if (y1 == 0)
y1 = pr->y;
if(y1 < pr->y || y2 < pr->y) {
PyErr_SetString(PyExc_IndexError, "y subscript out of range");
return -1;
}
if (len != pr->bpp * (y2 - y1)) {
PyErr_SetString(PyExc_TypeError, "string is wrong length");
return -1;
}
gimp_pixel_rgn_set_col(pr, buf, x1, y1, y2 - y1);
} else {
PyErr_SetString(PyExc_IndexError,"invalid y subscript");
return -1;
}
} else if (PySlice_Check(x)) {
if (PySlice_GetIndices((PySliceObject *)x, pr->x + pr->w,
&x1, &x2, &xs) ||
x1 >= x2 || xs != 1) {
PyErr_SetString(PyExc_IndexError, "invalid x slice");
return -1;
}
if(x1 == 0)
x1 = pr->x;
if(x1 < pr->x || x2 < pr->x) {
PyErr_SetString(PyExc_IndexError, "x subscript out of range");
return -1;
}
if (PyInt_Check(y)) {
y1 = PyInt_AsSsize_t(y);
if (y1 < pr->y || y1 >= pr->y + pr->h) {
PyErr_SetString(PyExc_IndexError, "y subscript out of range");
return -1;
}
if (len != pr->bpp * (x2 - x1)) {
PyErr_SetString(PyExc_TypeError, "string is wrong length");
return -1;
}
gimp_pixel_rgn_set_row(pr, buf, x1, y1, x2 - x1);
} else if (PySlice_Check(y)) {
if (PySlice_GetIndices((PySliceObject *)y, pr->y + pr->h,
&y1, &y2, &ys) ||
y1 >= y2 || ys != 1) {
PyErr_SetString(PyExc_IndexError, "invalid y slice");
return -1;
}
if (y1 == 0)
y1 = pr->y;
if(y1 < pr->y || y2 < pr->y) {
PyErr_SetString(PyExc_IndexError, "y subscript out of range");
return -1;
}
if (len != pr->bpp * (x2 - x1) * (y2 - y1)) {
PyErr_SetString(PyExc_TypeError, "string is wrong length");
return -1;
}
gimp_pixel_rgn_set_rect(pr, buf, x1, y1, x2 - x1, y2 - y1);
} else {
PyErr_SetString(PyExc_IndexError,"invalid y subscript");
return -1;
}
} else {
PyErr_SetString(PyExc_TypeError, "invalid x subscript");
return -1;
}
return 0;
}
static PyMappingMethods pr_as_mapping = {
pr_length, /*mp_length*/
(binaryfunc)pr_subscript, /*mp_subscript*/
(objobjargproc)pr_ass_sub, /*mp_ass_subscript*/
};
/* -------------------------------------------------------- */
static PyObject *
pr_get_drawable(PyGimpPixelRgn *self, void *closure)
{
return pygimp_drawable_new(self->pr.drawable, 0);
}
static PyObject *
pr_get_uint_field(PyGimpPixelRgn *self, void *closure)
{
gint offset = GPOINTER_TO_INT(closure);
guint value;
gchar *addr;
addr = (gchar *)&self->pr;
addr += offset;
value = *(guint *)addr;
return PyInt_FromLong(value);
}
static PyObject *
pr_get_dirty(PyGimpPixelRgn *self, void *closure)
{
return PyBool_FromLong(self->pr.dirty);
}
static PyObject *
pr_get_shadow(PyGimpPixelRgn *self, void *closure)
{
return PyBool_FromLong(self->pr.shadow);
}
#define OFF(x) GINT_TO_POINTER(offsetof(GimpPixelRgn, x))
static PyGetSetDef pr_getsets[] = {
{ "drawable", (getter)pr_get_drawable, 0, NULL },
{ "bpp", (getter)pr_get_uint_field, 0, NULL, OFF(bpp) },
{ "rowstride", (getter)pr_get_uint_field, 0, NULL, OFF(rowstride) },
{ "x", (getter)pr_get_uint_field, 0, NULL, OFF(x) },
{ "y", (getter)pr_get_uint_field, 0, NULL, OFF(y) },
{ "w", (getter)pr_get_uint_field, 0, NULL, OFF(w) },
{ "h", (getter)pr_get_uint_field, 0, NULL, OFF(h) },
{ "dirty", (getter)pr_get_dirty, 0, NULL },
{ "shadow", (getter)pr_get_shadow, 0, NULL },
{ NULL, (getter)0, (setter)0 },
};
#undef OFF
static PyObject *
pr_repr(PyGimpPixelRgn *self)
{
PyObject *s;
gchar *name;
name = gimp_item_get_name(self->drawable->drawable->drawable_id);
s = PyString_FromFormat("<gimp.PixelRgn for drawable '%s'>", name);
g_free(name);
return s;
}
PyTypeObject PyGimpPixelRgn_Type = {
PyObject_HEAD_INIT(NULL)
0, /* ob_size */
"gimp.PixelRgn", /* tp_name */
sizeof(PyGimpPixelRgn), /* tp_basicsize */
0, /* tp_itemsize */
/* methods */
(destructor)pr_dealloc, /* tp_dealloc */
(printfunc)0, /* tp_print */
(getattrfunc)0, /* tp_getattr */
(setattrfunc)0, /* tp_setattr */
(cmpfunc)0, /* tp_compare */
(reprfunc)pr_repr, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
&pr_as_mapping, /* tp_as_mapping */
(hashfunc)0, /* tp_hash */
(ternaryfunc)0, /* tp_call */
(reprfunc)0, /* tp_str */
(getattrofunc)0, /* tp_getattro */
(setattrofunc)0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT, /* tp_flags */
NULL, /* Documentation string */
(traverseproc)0, /* tp_traverse */
(inquiry)0, /* tp_clear */
(richcmpfunc)0, /* tp_richcompare */
0, /* tp_weaklistoffset */
(getiterfunc)0, /* tp_iter */
(iternextfunc)0, /* tp_iternext */
pr_methods, /* tp_methods */
0, /* tp_members */
pr_getsets, /* tp_getset */
(PyTypeObject *)0, /* tp_base */
(PyObject *)0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
(initproc)0, /* tp_init */
(allocfunc)0, /* tp_alloc */
(newfunc)0, /* tp_new */
};
static PyObject *
pf_get_pixel(PyGimpPixelFetcher *self, PyObject *args, PyObject *kwargs)
{
int x, y;
guchar pixel[4];
static char *kwlist[] = { "x", "y", NULL };
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"ii:get_pixel", kwlist,
&x, &y))
return NULL;
gimp_pixel_fetcher_get_pixel(self->pf, x, y, pixel);
return PyString_FromStringAndSize((char *)pixel, self->bpp);
}
static PyObject *
pf_put_pixel(PyGimpPixelFetcher *self, PyObject *args, PyObject *kwargs)
{
int x, y, len;
guchar *pixel;
static char *kwlist[] = { "x", "y", "pixel", NULL };
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"iis#:put_pixel", kwlist,
&x, &y, &pixel, &len))
return NULL;
if (len != self->bpp) {
PyErr_Format(PyExc_TypeError, "pixel must be %d bpp", self->bpp);
return NULL;
}
gimp_pixel_fetcher_put_pixel(self->pf, x, y, pixel);
Py_INCREF(Py_None);
return Py_None;
}
static PyMethodDef pf_methods[] = {
{"get_pixel", (PyCFunction)pf_get_pixel, METH_VARARGS | METH_KEYWORDS},
{"put_pixel", (PyCFunction)pf_put_pixel, METH_VARARGS | METH_KEYWORDS},
{NULL, NULL}
};
static int
pf_length(PyGimpPixelFetcher *self)
{
PyErr_SetString(pygimp_error, "Can't get size of pixel fetcher");
return -1;
}
static PyObject *
pf_subscript(PyGimpPixelFetcher *self, PyObject *key)
{
PyObject *py_x, *py_y;
int x, y;
guchar pixel[4];
if (!PyTuple_Check(key) || PyTuple_Size(key) != 2) {
PyErr_SetString(PyExc_TypeError, "subscript must be a 2-tuple");
return NULL;
}
if (!PyArg_ParseTuple(key, "OO", &py_x, &py_y))
return NULL;
if (PyInt_Check(py_x)) {
if (PyInt_Check(py_y)) {
x = PyInt_AsLong(py_x);
y = PyInt_AsLong(py_y);
gimp_pixel_fetcher_get_pixel(self->pf, x, y, pixel);
return PyString_FromStringAndSize((char *)pixel, self->bpp);
} else {
PyErr_SetString(PyExc_TypeError, "invalid y subscript");
return NULL;
}
} else {
PyErr_SetString(PyExc_TypeError, "invalid x subscript");
return NULL;
}
}
static int
pf_ass_sub(PyGimpPixelFetcher *self, PyObject *v, PyObject *w)
{
PyObject *py_x, *py_y;
int x, y, len;
guchar *pixel;
if (w == NULL) {
PyErr_SetString(PyExc_TypeError, "can't delete subscripts");
return -1;
}
if (!PyString_Check(w)) {
PyErr_SetString(PyExc_TypeError, "must assign string to subscript");
return -1;
}
if (!PyTuple_Check(v) || PyTuple_Size(v) != 2) {
PyErr_SetString(PyExc_TypeError, "subscript must be a 2-tuple");
return -1;
}
if (!PyArg_ParseTuple(v, "OO", &py_x, &py_y))
return -1;
pixel = (guchar *)PyString_AsString(w);
len = PyString_Size(w);
if (len != self->bpp) {
PyErr_Format(PyExc_TypeError, "pixel must be %d bpp", self->bpp);
return -1;
}
if (PyInt_Check(py_x)) {
if (PyInt_Check(py_y)) {
x = PyInt_AsLong(py_x);
y = PyInt_AsLong(py_y);
gimp_pixel_fetcher_put_pixel(self->pf, x, y, pixel);
return 0;
} else {
PyErr_SetString(PyExc_TypeError, "invalid y subscript");
return -1;
}
} else {
PyErr_SetString(PyExc_TypeError, "invalid x subscript");
return -1;
}
}
static PyMappingMethods pf_as_mapping = {
(lenfunc)pf_length,
(binaryfunc)pf_subscript,
(objobjargproc)pf_ass_sub,
};
static PyObject *
pf_get_bg_color(PyGimpPixelFetcher *self, void *closure)
{
return pygimp_rgb_new(&self->bg_color);
}
static int
pf_set_bg_color(PyGimpPixelFetcher *self, PyObject *value, void *closure)
{
if (value == NULL) {
PyErr_SetString(PyExc_TypeError, "cannot delete bg_color");
return -1;
}
if (!pygimp_rgb_from_pyobject(value, &self->bg_color))
return -1;
gimp_pixel_fetcher_set_bg_color(self->pf, &self->bg_color);
return 0;
}
static PyObject *
pf_get_edge_mode(PyGimpPixelFetcher *self, void *closure)
{
return PyInt_FromLong(self->edge_mode);
}
static int
pf_set_edge_mode(PyGimpPixelFetcher *self, PyObject *value, void *closure)
{
if (value == NULL) {
PyErr_SetString(PyExc_TypeError, "cannot delete edge_mode");
return -1;
}
if (!PyInt_Check(value)) {
PyErr_SetString(PyExc_TypeError, "type mismatch");
return -1;
}
self->edge_mode = PyInt_AsLong(value);
gimp_pixel_fetcher_set_edge_mode(self->pf, self->edge_mode);
return 0;
}
static PyGetSetDef pf_getsets[] = {
{ "bg_color", (getter)pf_get_bg_color, (setter)pf_set_bg_color },
{ "edge_mode", (getter)pf_get_edge_mode, (setter)pf_set_edge_mode },
{ NULL, (getter)0, (setter)0 }
};
static void
pf_dealloc(PyGimpPixelFetcher *self)
{
gimp_pixel_fetcher_destroy(self->pf);
Py_XDECREF(self->drawable);
PyObject_DEL(self);
}
static PyObject *
pf_repr(PyGimpPixelFetcher *self)
{
PyObject *s;
char *name;
name = gimp_item_get_name(self->drawable->drawable->drawable_id);
if (self->shadow)
s = PyString_FromFormat("<gimp.PixelFetcher for drawable '%s' (shadow)>", name);
else
s = PyString_FromFormat("<gimp.PixelFetcher for drawable '%s'>", name);
g_free(name);
return s;
}
static int
pf_init(PyGimpPixelFetcher *self, PyObject *args, PyObject *kwargs)
{
PyGimpDrawable *drw;
gboolean shadow = FALSE;
GimpRGB bg_color = { 0.0, 0.0, 0.0, 1.0 };
GimpPixelFetcherEdgeMode edge_mode = GIMP_PIXEL_FETCHER_EDGE_NONE;
static char *kwlist[] = { "drawable", "shadow", "bg_color", "edge_mode",
NULL };
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"O!|iO&i:gimp.PixelFetcher.__init__",
kwlist,
&PyGimpDrawable_Type, &drw, &shadow,
pygimp_rgb_from_pyobject, &bg_color,
&edge_mode))
return -1;
if(!drw->drawable)
drw->drawable = gimp_drawable_get(drw->ID);
self->pf = gimp_pixel_fetcher_new(drw->drawable, shadow);
Py_INCREF(drw);
self->drawable = drw;
self->shadow = shadow;
self->bg_color = bg_color;
self->edge_mode = edge_mode;
self->bpp = gimp_drawable_bpp(drw->drawable->drawable_id);
gimp_pixel_fetcher_set_bg_color(self->pf, &bg_color);
gimp_pixel_fetcher_set_edge_mode(self->pf, edge_mode);
return 0;
}
PyTypeObject PyGimpPixelFetcher_Type = {
PyObject_HEAD_INIT(NULL)
0, /* ob_size */
"gimp.PixelFetcher", /* tp_name */
sizeof(PyGimpPixelFetcher), /* tp_basicsize */
0, /* tp_itemsize */
/* methods */
(destructor)pf_dealloc, /* tp_dealloc */
(printfunc)0, /* tp_print */
(getattrfunc)0, /* tp_getattr */
(setattrfunc)0, /* tp_setattr */
(cmpfunc)0, /* tp_compare */
(reprfunc)pf_repr, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
&pf_as_mapping, /* tp_as_mapping */
(hashfunc)0, /* tp_hash */
(ternaryfunc)0, /* tp_call */
(reprfunc)0, /* tp_str */
(getattrofunc)0, /* tp_getattro */
(setattrofunc)0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT, /* tp_flags */
NULL, /* Documentation string */
(traverseproc)0, /* tp_traverse */
(inquiry)0, /* tp_clear */
(richcmpfunc)0, /* tp_richcompare */
0, /* tp_weaklistoffset */
(getiterfunc)0, /* tp_iter */
(iternextfunc)0, /* tp_iternext */
pf_methods, /* tp_methods */
0, /* tp_members */
pf_getsets, /* tp_getset */
(PyTypeObject *)0, /* tp_base */
(PyObject *)0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
(initproc)pf_init, /* tp_init */
(allocfunc)0, /* tp_alloc */
(newfunc)0, /* tp_new */
};
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