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/* Python plug-in for dia
* Copyright (C) 1999 James Henstridge
* Copyright (C) 2000 Hans Breuer
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <config.h>
#include "pydia-object.h"
#include "pydia-image.h"
#include "prop_pixbuf.h" /* pixbuf_encode_base64 */
#include <structmember.h> /* PyMemberDef */
/*
* New
*/
PyObject* PyDiaImage_New (DiaImage *image)
{
PyDiaImage *self;
self = PyObject_NEW(PyDiaImage, &PyDiaImage_Type);
if (!self) return NULL;
dia_image_add_ref (image);
self->image = image;
return (PyObject *)self;
}
/*
* Dealloc
*/
static void
PyDiaImage_Dealloc(PyDiaImage *self)
{
dia_image_unref (self->image);
PyObject_DEL(self);
}
/*
* Compare
*/
static int
PyDiaImage_Compare(PyDiaImage *self,
PyDiaImage *other)
{
return memcmp(&(self->image), &(other->image), sizeof(DiaImage *));
}
/*
* Hash
*/
static long
PyDiaImage_Hash(PyObject *self)
{
return (long)self;
}
/*
* GetAttr
*/
static PyObject *
PyDiaImage_GetAttr(PyDiaImage *self, gchar *attr)
{
if (!strcmp(attr, "__members__"))
return Py_BuildValue("[ssssss]", "width", "height",
"rgb_data", "mask_data",
"filename", "uri");
else if (!strcmp(attr, "width"))
return PyInt_FromLong(dia_image_width(self->image));
else if (!strcmp(attr, "height"))
return PyInt_FromLong(dia_image_height(self->image));
else if (!strcmp(attr, "filename")) {
return PyString_FromString(dia_image_filename(self->image));
}
else if (!strcmp(attr, "uri")) {
GError* error = NULL;
const gchar *fname = dia_image_filename(self->image);
char* s;
if (g_path_is_absolute(fname)) {
s = g_filename_to_uri(fname, NULL, &error);
} else {
gchar *prefix = g_strdup_printf ("data:%s;base64,", dia_image_get_mime_type (self->image));
s = pixbuf_encode_base64 (dia_image_pixbuf (self->image), prefix);
g_free (prefix);
}
if (s) {
PyObject* py_s = PyString_FromString(s);
g_free(s);
return py_s;
} else {
if (error) {
PyErr_SetString(PyExc_RuntimeError, error->message);
g_error_free (error);
} else {
PyErr_SetString(PyExc_RuntimeError, "Pixbuf conversion failed?");
}
return NULL;
}
}
else if (!strcmp(attr, "rgb_data")) {
unsigned char* s = dia_image_rgb_data(self->image);
int len = dia_image_width(self->image) * dia_image_height(self->image) * 3;
PyObject* py_s;
if (!s)
return PyErr_NoMemory();
py_s = PyString_FromStringAndSize((const char *)s, len);
g_free (s);
return py_s;
}
else if (!strcmp(attr, "mask_data")) {
unsigned char* s = dia_image_mask_data(self->image);
int len = dia_image_width(self->image) * dia_image_height(self->image);
PyObject* py_s;
if (!s)
return PyErr_NoMemory();
py_s = PyString_FromStringAndSize((const char *)s, len);
g_free (s);
return py_s;
}
PyErr_SetString(PyExc_AttributeError, attr);
return NULL;
}
/*
* Repr / _Str
*/
static PyObject *
PyDiaImage_Str(PyDiaImage *self)
{
PyObject* py_s;
const gchar* name = dia_image_filename(self->image);
gchar* s = g_strdup_printf("%ix%i,%s",
dia_image_width(self->image),
dia_image_height(self->image),
name ? name : "(null)");
py_s = PyString_FromString(s);
g_free (s);
return py_s;
}
#define T_INVALID -1 /* can't allow direct access due to pyobject->cpoint indirection */
static PyMemberDef PyDiaImage_Members[] = {
{ "width", T_INVALID, 0, RESTRICTED|READONLY,
"int: pixel width of the image" },
{ "height", T_INVALID, 0, RESTRICTED|READONLY,
"int: pixel height of the image" },
{ "rgb_data", T_INVALID, 0, RESTRICTED|READONLY,
"string: array of packed rgb pixel values" },
{ "mask_data", T_INVALID, 0, RESTRICTED|READONLY,
"string: array of alpha pixel values" },
{ "filename", T_INVALID, 0, RESTRICTED|READONLY,
"string: utf-8 encoded filename of the image" },
{ "uri", T_INVALID, 0, RESTRICTED|READONLY,
"string: Uniform Resource Identifier of the image" },
{ NULL }
};
/*
* Python objetcs
*/
PyTypeObject PyDiaImage_Type = {
PyObject_HEAD_INIT(&PyType_Type)
0,
"dia.Image",
sizeof(PyDiaImage),
0,
(destructor)PyDiaImage_Dealloc,
(printfunc)0,
(getattrfunc)PyDiaImage_GetAttr,
(setattrfunc)0,
(cmpfunc)PyDiaImage_Compare,
(reprfunc)0,
0,
0,
0,
(hashfunc)PyDiaImage_Hash,
(ternaryfunc)0,
(reprfunc)PyDiaImage_Str,
(getattrofunc)0,
(setattrofunc)0,
(PyBufferProcs *)0,
0L, /* Flags */
"dia.Image gets passed into DiaRenderer.draw_image",
(traverseproc)0,
(inquiry)0,
(richcmpfunc)0,
0, /* tp_weakliszoffset */
(getiterfunc)0,
(iternextfunc)0,
0, /* tp_methods */
PyDiaImage_Members, /* tp_members */
0
};
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