diff options
Diffstat (limited to 'src/surface.c')
| -rw-r--r-- | src/surface.c | 1218 |
1 files changed, 1218 insertions, 0 deletions
diff --git a/src/surface.c b/src/surface.c new file mode 100644 index 0000000..f2f05b8 --- /dev/null +++ b/src/surface.c @@ -0,0 +1,1218 @@ +/* -*- mode: C; c-basic-offset: 2 -*- + * + * Pycairo - Python bindings for cairo + * + * Copyright © 2003 James Henstridge, Steven Chaplin + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + */ + +#define PY_SSIZE_T_CLEAN +#include <Python.h> + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include "private.h" + + +/* Class Surface ---------------------------------------------------------- */ + +/* PycairoSurface_FromSurface + * Create a new + * PycairoImageSurface, + * PycairoPDFSurface, + * PycairoPSSurface, + * PycairoSVGSurface, + * PycairoWin32Surface, or + * PycairoXlibSurface from a cairo_surface_t. + * surface - a cairo_surface_t to 'wrap' into a Python object. + * It is unreferenced if the PycairoSurface creation fails, or if the + * cairo_surface_t has an error status. + * base - the base object used to create the surface, or NULL. + * It is referenced to keep it alive while the cairo_surface_t is being used. + * Return value: New reference or NULL on failure + */ +PyObject * +PycairoSurface_FromSurface (cairo_surface_t *surface, PyObject *base) { + PyTypeObject *type = NULL; + PyObject *o; + + assert (surface != NULL); + + if (Pycairo_Check_Status (cairo_surface_status (surface))) { + cairo_surface_destroy (surface); + return NULL; + } + + switch (cairo_surface_get_type (surface)) { +#if CAIRO_HAS_IMAGE_SURFACE + case CAIRO_SURFACE_TYPE_IMAGE: + type = &PycairoImageSurface_Type; + break; +#endif +#if CAIRO_HAS_PDF_SURFACE + case CAIRO_SURFACE_TYPE_PDF: + type = &PycairoPDFSurface_Type; + break; +#endif +#if CAIRO_HAS_PS_SURFACE + case CAIRO_SURFACE_TYPE_PS: + type = &PycairoPSSurface_Type; + break; +#endif +#if CAIRO_HAS_SVG_SURFACE + case CAIRO_SURFACE_TYPE_SVG: + type = &PycairoSVGSurface_Type; + break; +#endif +#if CAIRO_HAS_WIN32_SURFACE + case CAIRO_SURFACE_TYPE_WIN32: + type = &PycairoWin32Surface_Type; + break; +#endif +#if CAIRO_HAS_XLIB_SURFACE + case CAIRO_SURFACE_TYPE_XLIB: + type = &PycairoXlibSurface_Type; + break; +#endif + default: + type = &PycairoSurface_Type; + break; + } + o = type->tp_alloc (type, 0); + if (o == NULL) { + cairo_surface_destroy (surface); + } else { + ((PycairoSurface *)o)->surface = surface; + Py_XINCREF(base); + ((PycairoSurface *)o)->base = base; + } + return o; +} + +/* for use with + * cairo_surface_write_to_png_stream() + * cairo_pdf/ps/svg_surface_create_for_stream() + */ +static cairo_status_t +_write_func (void *closure, const unsigned char *data, unsigned int length) { + PyGILState_STATE gstate = PyGILState_Ensure(); + PyObject *res = PyObject_CallMethod ((PyObject *)closure, "write", "(s#)", + data, (Py_ssize_t)length); + if (res == NULL) { + /* an exception has occurred, it will be picked up later by + * Pycairo_Check_Status() + */ + PyGILState_Release(gstate); + return CAIRO_STATUS_WRITE_ERROR; + } + Py_DECREF(res); + PyGILState_Release(gstate); + return CAIRO_STATUS_SUCCESS; +} + +static void +surface_dealloc (PycairoSurface *o) { + if (o->surface) { + cairo_surface_destroy(o->surface); + o->surface = NULL; + } + Py_CLEAR(o->base); + + o->ob_type->tp_free((PyObject *)o); +} + +static PyObject * +surface_new (PyTypeObject *type, PyObject *args, PyObject *kwds) { + PyErr_SetString(PyExc_TypeError, + "The Surface type cannot be instantiated"); + return NULL; +} + +static PyObject * +surface_copy_page (PycairoSurface *o) { + Py_BEGIN_ALLOW_THREADS; + cairo_surface_copy_page (o->surface); + Py_END_ALLOW_THREADS; + RETURN_NULL_IF_CAIRO_SURFACE_ERROR(o->surface); + Py_RETURN_NONE; +} + +static PyObject * +surface_create_similar (PycairoSurface *o, PyObject *args) { + cairo_content_t content; + int width, height; + + if (!PyArg_ParseTuple (args, "iii:Surface.create_similar", + &content, &width, &height)) + return NULL; + return PycairoSurface_FromSurface ( + cairo_surface_create_similar (o->surface, content, width, height), + NULL); +} + +static PyObject * +surface_finish (PycairoSurface *o) { + cairo_surface_finish (o->surface); + Py_CLEAR(o->base); + RETURN_NULL_IF_CAIRO_SURFACE_ERROR(o->surface); + Py_RETURN_NONE; +} + +static PyObject * +surface_flush (PycairoSurface *o) { + Py_BEGIN_ALLOW_THREADS; + cairo_surface_flush (o->surface); + Py_END_ALLOW_THREADS; + RETURN_NULL_IF_CAIRO_SURFACE_ERROR(o->surface); + Py_RETURN_NONE; +} + +static PyObject * +surface_get_content (PycairoSurface *o) { + return PyInt_FromLong (cairo_surface_get_content (o->surface)); +} + +static PyObject * +surface_get_device_offset (PycairoSurface *o) { + double x_offset, y_offset; + cairo_surface_get_device_offset (o->surface, &x_offset, &y_offset); + return Py_BuildValue("(dd)", x_offset, y_offset); +} + +static PyObject * +surface_get_fallback_resolution (PycairoSurface *o) { + double x_ppi, y_ppi; + cairo_surface_get_fallback_resolution (o->surface, &x_ppi, &y_ppi); + return Py_BuildValue("(dd)", x_ppi, y_ppi); +} + +static PyObject * +surface_get_font_options (PycairoSurface *o) { + cairo_font_options_t *options = cairo_font_options_create(); + + cairo_surface_get_font_options (o->surface, options); + /* there is no reference fn */ + return PycairoFontOptions_FromFontOptions (options); +} + +static PyObject * +surface_mark_dirty (PycairoSurface *o) { + cairo_surface_mark_dirty (o->surface); + RETURN_NULL_IF_CAIRO_SURFACE_ERROR(o->surface); + Py_RETURN_NONE; +} + +static PyObject * +surface_mark_dirty_rectangle (PycairoSurface *o, PyObject *args) { + int x, y, width, height; + + if (!PyArg_ParseTuple(args, "iiii:Surface.mark_dirty_rectangle", + &x, &y, &width, &height)) + return NULL; + + cairo_surface_mark_dirty_rectangle (o->surface, x, y, width, height); + RETURN_NULL_IF_CAIRO_SURFACE_ERROR(o->surface); + Py_RETURN_NONE; +} + +static PyObject * +surface_set_device_offset (PycairoSurface *o, PyObject *args) { + double x_offset, y_offset; + + if (!PyArg_ParseTuple (args, "dd:Surface.set_device_offset", + &x_offset, &y_offset)) + return NULL; + + cairo_surface_set_device_offset (o->surface, x_offset, y_offset); + Py_RETURN_NONE; +} + +static PyObject * +surface_set_fallback_resolution (PycairoSurface *o, PyObject *args) { + double x_ppi, y_ppi; + + if (!PyArg_ParseTuple(args, "dd:Surface.set_fallback_resolution", + &x_ppi, &y_ppi)) + return NULL; + cairo_surface_set_fallback_resolution (o->surface, x_ppi, y_ppi); + Py_RETURN_NONE; +} + +static PyObject * +surface_show_page (PycairoSurface *o) { + Py_BEGIN_ALLOW_THREADS; + cairo_surface_show_page (o->surface); + Py_END_ALLOW_THREADS; + RETURN_NULL_IF_CAIRO_SURFACE_ERROR(o->surface); + Py_RETURN_NONE; +} + +#ifdef CAIRO_HAS_PNG_FUNCTIONS +/* METH_O */ +static PyObject * +surface_write_to_png (PycairoSurface *o, PyObject *file) { + cairo_status_t status; + + if (PyObject_TypeCheck (file, &PyBaseString_Type)) { + /* string (filename) argument */ + Py_BEGIN_ALLOW_THREADS; + status = cairo_surface_write_to_png (o->surface, + PyString_AsString(file)); + Py_END_ALLOW_THREADS; + + } else { /* file or file-like object argument */ + PyObject* writer = PyObject_GetAttrString (file, "write"); + if (writer == NULL || !PyCallable_Check (writer)) { + Py_XDECREF(writer); + PyErr_SetString(PyExc_TypeError, +"Surface.write_to_png takes one argument which must be a filename (str), file " +"object, or a file-like object which has a \"write\" method (like StringIO)"); + return NULL; + } + Py_DECREF(writer); + Py_BEGIN_ALLOW_THREADS; + status = cairo_surface_write_to_png_stream (o->surface, _write_func, + file); + Py_END_ALLOW_THREADS; + } + RETURN_NULL_IF_CAIRO_ERROR(status); + Py_RETURN_NONE; +} +#endif /* CAIRO_HAS_PNG_FUNCTIONS */ + + +static PyMethodDef surface_methods[] = { + /* methods never exposed in a language binding: + * cairo_surface_destroy() + * cairo_surface_get_type() + * cairo_surface_get_user_data() + * cairo_surface_reference() + * cairo_surface_set_user_data() + */ + {"copy_page", (PyCFunction)surface_copy_page, METH_NOARGS}, + {"create_similar", (PyCFunction)surface_create_similar, METH_VARARGS}, + {"finish", (PyCFunction)surface_finish, METH_NOARGS}, + {"flush", (PyCFunction)surface_flush, METH_NOARGS}, + {"get_content", (PyCFunction)surface_get_content, METH_NOARGS}, + {"get_device_offset",(PyCFunction)surface_get_device_offset,METH_NOARGS}, + {"get_fallback_resolution",(PyCFunction)surface_get_fallback_resolution, + METH_NOARGS}, + {"get_font_options",(PyCFunction)surface_get_font_options, METH_NOARGS}, + {"mark_dirty", (PyCFunction)surface_mark_dirty, METH_NOARGS}, + {"mark_dirty_rectangle", (PyCFunction)surface_mark_dirty_rectangle, + METH_VARARGS}, + {"set_device_offset",(PyCFunction)surface_set_device_offset,METH_VARARGS}, + {"set_fallback_resolution",(PyCFunction)surface_set_fallback_resolution, + METH_VARARGS}, + {"show_page", (PyCFunction)surface_show_page, METH_NOARGS}, +#ifdef CAIRO_HAS_PNG_FUNCTIONS + {"write_to_png", (PyCFunction)surface_write_to_png, METH_O }, +#endif + {NULL, NULL, 0, NULL}, +}; + + +PyTypeObject PycairoSurface_Type = { + PyObject_HEAD_INIT(NULL) + 0, /* ob_size */ + "cairo.Surface", /* tp_name */ + sizeof(PycairoSurface), /* tp_basicsize */ + 0, /* tp_itemsize */ + (destructor)surface_dealloc, /* tp_dealloc */ + 0, /* tp_print */ + 0, /* tp_getattr */ + 0, /* tp_setattr */ + 0, /* tp_compare */ + 0, /* tp_repr */ + 0, /* tp_as_number */ + 0, /* 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 | Py_TPFLAGS_BASETYPE,/* tp_flags */ + 0, /* tp_doc */ + 0, /* tp_traverse */ + 0, /* tp_clear */ + 0, /* tp_richcompare */ + 0, /* tp_weaklistoffset */ + 0, /* tp_iter */ + 0, /* tp_iternext */ + surface_methods, /* tp_methods */ + 0, /* tp_members */ + 0, /* tp_getset */ + &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)surface_new, /* tp_new */ + 0, /* tp_free */ + 0, /* tp_is_gc */ + 0, /* tp_bases */ +}; + + +/* Class ImageSurface(Surface) -------------------------------------------- */ +#ifdef CAIRO_HAS_IMAGE_SURFACE + +static PyObject * +image_surface_new (PyTypeObject *type, PyObject *args, PyObject *kwds) { + cairo_format_t format; + int width, height; + + if (!PyArg_ParseTuple (args, "iii:ImageSurface.__new__", + &format, &width, &height)) + return NULL; + return PycairoSurface_FromSurface ( + cairo_image_surface_create (format, width, height), + NULL); +} + +static PyObject * +image_surface_create_for_data (PyTypeObject *type, PyObject *args) { + cairo_surface_t *surface; + cairo_format_t format; + unsigned char *buffer; + int width, height, stride = -1, res; + Py_ssize_t buffer_len; + PyObject *obj; + + if (!PyArg_ParseTuple(args, "Oiii|i:Surface.create_for_data", + &obj, &format, &width, &height, &stride)) + return NULL; + + res = PyObject_AsWriteBuffer (obj, (void **)&buffer, &buffer_len); + if (res == -1) + return NULL; + + if (width <= 0) { + PyErr_SetString(PyExc_ValueError, "width must be positive"); + return NULL; + } + if (height <= 0) { + PyErr_SetString(PyExc_ValueError, "height must be positive"); + return NULL; + } + /* if stride is missing, calculate it from width */ + if (stride < 0) { + stride = cairo_format_stride_for_width (format, width); + if (stride == -1){ + PyErr_SetString(CairoError, + "format is invalid or the width too large"); + return NULL; + } + } + if (height * stride > buffer_len) { + PyErr_SetString(PyExc_TypeError, "buffer is not long enough"); + return NULL; + } + Py_BEGIN_ALLOW_THREADS; + surface = cairo_image_surface_create_for_data (buffer, format, width, + height, stride); + Py_END_ALLOW_THREADS; + return PycairoSurface_FromSurface(surface, obj); +} + + +#ifdef CAIRO_HAS_PNG_FUNCTIONS +static cairo_status_t +_read_func (void *closure, unsigned char *data, unsigned int length) { + char *buffer; + Py_ssize_t str_length; + cairo_status_t status = CAIRO_STATUS_READ_ERROR; + PyGILState_STATE gstate = PyGILState_Ensure(); + PyObject *pystr = PyObject_CallMethod ((PyObject *)closure, "read", "(i)", + length); + if (pystr == NULL) { + /* an exception has occurred, it will be picked up later by + * Pycairo_Check_Status() + */ + goto end; + } + int ret = PyString_AsStringAndSize(pystr, &buffer, &str_length); + if (ret == -1 || str_length < length) { + goto end; + } + /* don't use strncpy() since png data may contain NUL bytes */ + memcpy (data, buffer, str_length); + status = CAIRO_STATUS_SUCCESS; + end: + Py_XDECREF(pystr); + PyGILState_Release(gstate); + return status; +} + +/* METH_O | METH_CLASS */ +static PyObject * +image_surface_create_from_png (PyTypeObject *type, PyObject *file) { + PyObject* reader; + cairo_surface_t *is; + + if (PyObject_TypeCheck (file, &PyBaseString_Type)) { + Py_BEGIN_ALLOW_THREADS; + is = cairo_image_surface_create_from_png (PyString_AsString(file)); + Py_END_ALLOW_THREADS; + return PycairoSurface_FromSurface (is, NULL); + } + + /* file or file-like object argument */ + reader = PyObject_GetAttrString (file, "read"); + if (reader == NULL || !PyCallable_Check (reader)) { + Py_XDECREF(reader); + PyErr_SetString(PyExc_TypeError, +"ImageSurface.create_from_png argument must be a filename (str), file object, " +"or an object that has a \"read\" method (like StringIO)"); + return NULL; + } + Py_DECREF(reader); + + Py_BEGIN_ALLOW_THREADS; + is = cairo_image_surface_create_from_png_stream (_read_func, file); + Py_END_ALLOW_THREADS; + return PycairoSurface_FromSurface (is, NULL); +} +#endif /* CAIRO_HAS_PNG_FUNCTIONS */ + +/* METH_STATIC */ +static PyObject * +image_surface_format_stride_for_width (PyObject *self, PyObject *args) { + cairo_format_t format; + int width; + if (!PyArg_ParseTuple(args, "ii:format_stride_for_width", &format, &width)) + return NULL; + return PyInt_FromLong (cairo_format_stride_for_width (format, width)); +} + +static PyObject * +image_surface_get_data (PycairoImageSurface *o) { + return PyBuffer_FromReadWriteObject((PyObject *)o, 0, Py_END_OF_BUFFER); +} + +static PyObject * +image_surface_get_format (PycairoImageSurface *o) { + return PyInt_FromLong (cairo_image_surface_get_format (o->surface)); +} + +static PyObject * +image_surface_get_height (PycairoImageSurface *o) { + return PyInt_FromLong (cairo_image_surface_get_height (o->surface)); +} + +static PyObject * +image_surface_get_stride (PycairoImageSurface *o) { + return PyInt_FromLong (cairo_image_surface_get_stride (o->surface)); +} + +static PyObject * +image_surface_get_width (PycairoImageSurface *o) { + return PyInt_FromLong (cairo_image_surface_get_width (o->surface)); +} + + +/* Buffer interface functions, used by ImageSurface.get_data() */ +static int +image_surface_buffer_getreadbuf (PycairoImageSurface *o, int segment, + const void **ptr) { + cairo_surface_t *surface = o->surface; + int height, stride; + + if (segment != 0) { + PyErr_SetString(PyExc_SystemError, + "accessing non-existent ImageSurface segment"); + return -1; + } + height = cairo_image_surface_get_height (surface); + stride = cairo_image_surface_get_stride (surface); + *ptr = (void *) cairo_image_surface_get_data (surface); + return height * stride; +} + +static int +image_surface_buffer_getwritebuf (PycairoImageSurface *o, int segment, + const void **ptr) { + cairo_surface_t *surface = o->surface; + int height, stride; + + if (segment != 0) { + PyErr_SetString(PyExc_SystemError, + "accessing non-existent ImageSurface segment"); + return -1; + } + height = cairo_image_surface_get_height (surface); + stride = cairo_image_surface_get_stride (surface); + *ptr = (void *) cairo_image_surface_get_data (surface); + return height * stride; +} + +static int +image_surface_buffer_getsegcount (PycairoImageSurface *o, int *lenp) { + if (lenp) { + /* report the sum of the sizes (in bytes) of all segments */ + cairo_surface_t *surface = o->surface; + int height = cairo_image_surface_get_height (surface); + int stride = cairo_image_surface_get_stride (surface); + *lenp = height * stride; + } + return 1; /* surface data is all in one segment */ +} + +/* See Python C API Manual 10.7 */ +static PyBufferProcs image_surface_as_buffer = { + (readbufferproc) image_surface_buffer_getreadbuf, + (writebufferproc)image_surface_buffer_getwritebuf, + (segcountproc) image_surface_buffer_getsegcount, + (charbufferproc) NULL, +}; + +static PyMethodDef image_surface_methods[] = { + {"create_for_data",(PyCFunction)image_surface_create_for_data, + METH_VARARGS | METH_CLASS}, +#ifdef CAIRO_HAS_PNG_FUNCTIONS + {"create_from_png", (PyCFunction)image_surface_create_from_png, + METH_O | METH_CLASS}, +#endif + {"format_stride_for_width", + (PyCFunction)image_surface_format_stride_for_width, + METH_VARARGS | METH_STATIC}, + {"get_data", (PyCFunction)image_surface_get_data, METH_NOARGS}, + {"get_format", (PyCFunction)image_surface_get_format, METH_NOARGS}, + {"get_height", (PyCFunction)image_surface_get_height, METH_NOARGS}, + {"get_stride", (PyCFunction)image_surface_get_stride, METH_NOARGS}, + {"get_width", (PyCFunction)image_surface_get_width, METH_NOARGS}, + {NULL, NULL, 0, NULL}, +}; + + +PyTypeObject PycairoImageSurface_Type = { + PyObject_HEAD_INIT(NULL) + 0, /* ob_size */ + "cairo.ImageSurface", /* tp_name */ + sizeof(PycairoImageSurface), /* tp_basicsize */ + 0, /* tp_itemsize */ + 0, /* tp_dealloc */ + 0, /* tp_print */ + 0, /* tp_getattr */ + 0, /* tp_setattr */ + 0, /* tp_compare */ + 0, /* tp_repr */ + 0, /* tp_as_number */ + 0, /* tp_as_sequence */ + 0, /* tp_as_mapping */ + 0, /* tp_hash */ + 0, /* tp_call */ + 0, /* tp_str */ + 0, /* tp_getattro */ + 0, /* tp_setattro */ + &image_surface_as_buffer, /* tp_as_buffer */ + Py_TPFLAGS_DEFAULT, /* tp_flags */ + 0, /* tp_doc */ + 0, /* tp_traverse */ + 0, /* tp_clear */ + 0, /* tp_richcompare */ + 0, /* tp_weaklistoffset */ + 0, /* tp_iter */ + 0, /* tp_iternext */ + image_surface_methods, /* tp_methods */ + 0, /* tp_members */ + 0, /* tp_getset */ + &PycairoSurface_Type, /* tp_base */ + 0, /* tp_dict */ + 0, /* tp_descr_get */ + 0, /* tp_descr_set */ + 0, /* tp_dictoffset */ + 0, /* tp_init */ + 0, /* tp_alloc */ + (newfunc)image_surface_new, /* tp_new */ + 0, /* tp_free */ + 0, /* tp_is_gc */ + 0, /* tp_bases */ +}; +#endif /* CAIRO_HAS_IMAGE_SURFACE */ + + +/* Class PDFSurface(Surface) ---------------------------------------------- */ +#ifdef CAIRO_HAS_PDF_SURFACE +#include <cairo-pdf.h> + +static PyObject * +pdf_surface_new (PyTypeObject *type, PyObject *args, PyObject *kwds) { + double width_in_points, height_in_points; + PyObject *file, *writer; + cairo_surface_t *sfc; + + if (!PyArg_ParseTuple(args, "Odd:PDFSurface.__new__", + &file, &width_in_points, &height_in_points)) + return NULL; + + if (file == Py_None) { + Py_BEGIN_ALLOW_THREADS; + sfc = cairo_pdf_surface_create (NULL, + width_in_points, height_in_points); + Py_END_ALLOW_THREADS; + return PycairoSurface_FromSurface (sfc, NULL); + }else if (PyObject_TypeCheck (file, &PyBaseString_Type)) { + /* string (filename) argument */ + Py_BEGIN_ALLOW_THREADS; + sfc = cairo_pdf_surface_create (PyString_AsString(file), + width_in_points, height_in_points); + Py_END_ALLOW_THREADS; + return PycairoSurface_FromSurface (sfc, NULL); + } + /* file or file-like object argument */ + writer = PyObject_GetAttrString (file, "write"); + if (writer == NULL || !PyCallable_Check (writer)) { + Py_XDECREF(writer); + PyErr_SetString(PyExc_TypeError, +"PDFSurface argument 1 must be\n" +" None, or\n" +" a filename (str), or\n" +" a file object, or\n" +" an object that has a \"write\" method (like StringIO)." + ); + return NULL; + } + Py_DECREF(writer); + + Py_BEGIN_ALLOW_THREADS; + sfc = cairo_pdf_surface_create_for_stream (_write_func, file, + width_in_points, height_in_points); + Py_END_ALLOW_THREADS; + return PycairoSurface_FromSurface (sfc, file); +} + +static PyObject * +pdf_surface_set_size (PycairoPDFSurface *o, PyObject *args) { + double width_in_points, height_in_points; + + if (!PyArg_ParseTuple(args, "dd:PDFSurface.set_size", &width_in_points, + &height_in_points)) + return NULL; + cairo_pdf_surface_set_size (o->surface, width_in_points, + height_in_points); + Py_RETURN_NONE; +} + +static PyMethodDef pdf_surface_methods[] = { + {"set_size", (PyCFunction)pdf_surface_set_size, METH_VARARGS }, + {NULL, NULL, 0, NULL}, +}; + +PyTypeObject PycairoPDFSurface_Type = { + PyObject_HEAD_INIT(NULL) + 0, /* ob_size */ + "cairo.PDFSurface", /* tp_name */ + sizeof(PycairoPDFSurface), /* tp_basicsize */ + 0, /* tp_itemsize */ + 0, /* tp_dealloc */ + 0, /* tp_print */ + 0, /* tp_getattr */ + 0, /* tp_setattr */ + 0, /* tp_compare */ + 0, /* tp_repr */ + 0, /* tp_as_number */ + 0, /* 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 */ + 0, /* tp_doc */ + 0, /* tp_traverse */ + 0, /* tp_clear */ + 0, /* tp_richcompare */ + 0, /* tp_weaklistoffset */ + 0, /* tp_iter */ + 0, /* tp_iternext */ + pdf_surface_methods, /* tp_methods */ + 0, /* tp_members */ + 0, /* tp_getset */ + &PycairoSurface_Type, /* tp_base */ + 0, /* tp_dict */ + 0, /* tp_descr_get */ + 0, /* tp_descr_set */ + 0, /* tp_dictoffset */ + 0, /* tp_init */ + 0, /* tp_alloc */ + (newfunc)pdf_surface_new, /* tp_new */ + 0, /* tp_free */ + 0, /* tp_is_gc */ + 0, /* tp_bases */ +}; +#endif /* CAIRO_HAS_PDF_SURFACE */ + + +/* Class PSSurface(Surface) ----------------------------------------------- */ +#ifdef CAIRO_HAS_PS_SURFACE +#include <cairo-ps.h> + +static PyObject * +ps_surface_new (PyTypeObject *type, PyObject *args, PyObject *kwds) { + double width_in_points, height_in_points; + PyObject *file, *writer; + cairo_surface_t *sfc; + + if (!PyArg_ParseTuple(args, "Odd:PSSurface.__new__", + &file, &width_in_points, &height_in_points)) + return NULL; + + if (file == Py_None) { + Py_BEGIN_ALLOW_THREADS; + sfc = cairo_ps_surface_create (NULL, + width_in_points, height_in_points); + Py_END_ALLOW_THREADS; + return PycairoSurface_FromSurface (sfc, NULL); + }else if (PyObject_TypeCheck (file, &PyBaseString_Type)) { + /* string (filename) argument */ + Py_BEGIN_ALLOW_THREADS; + sfc = cairo_ps_surface_create (PyString_AsString(file), + width_in_points, height_in_points); + Py_END_ALLOW_THREADS; + return PycairoSurface_FromSurface (sfc, NULL); + } + /* else: file or file-like object argument */ + writer = PyObject_GetAttrString (file, "write"); + if (writer == NULL || !PyCallable_Check (writer)) { + Py_XDECREF(writer); + PyErr_SetString(PyExc_TypeError, +"PSSurface argument 1 must be\n" +" None, or\n" +" a filename (str), or\n" +" a file object, or\n" +" an object that has a \"write\" method (like StringIO)." + ); + return NULL; + } + Py_DECREF(writer); + + Py_BEGIN_ALLOW_THREADS; + sfc = cairo_ps_surface_create_for_stream (_write_func, file, + width_in_points, height_in_points); + Py_END_ALLOW_THREADS; + return PycairoSurface_FromSurface (sfc, file); +} + +static PyObject * +ps_surface_dsc_begin_page_setup (PycairoPSSurface *o) { + cairo_ps_surface_dsc_begin_page_setup (o->surface); + RETURN_NULL_IF_CAIRO_SURFACE_ERROR(o->surface); + Py_RETURN_NONE; +} + +static PyObject * +ps_surface_dsc_begin_setup (PycairoPSSurface *o) { + cairo_ps_surface_dsc_begin_setup (o->surface); + RETURN_NULL_IF_CAIRO_SURFACE_ERROR(o->surface); + Py_RETURN_NONE; +} + +static PyObject * +ps_surface_dsc_comment (PycairoPSSurface *o, PyObject *args) { + const char *comment; + if (!PyArg_ParseTuple(args, "s:PSSurface.dsc_comment", &comment)) + return NULL; + cairo_ps_surface_dsc_comment (o->surface, comment); + RETURN_NULL_IF_CAIRO_SURFACE_ERROR(o->surface); + Py_RETURN_NONE; +} + +static PyObject * +ps_surface_get_eps (PycairoPSSurface *o) { + PyObject *eps = cairo_ps_surface_get_eps (o->surface) ? Py_True : Py_False; + RETURN_NULL_IF_CAIRO_SURFACE_ERROR(o->surface); + Py_INCREF(eps); + return eps; +} + +/* METH_STATIC */ +static PyObject * +ps_surface_ps_level_to_string (PyObject *self, PyObject *args) { + int level; + if (!PyArg_ParseTuple(args, "i:ps_level_to_string", &level)) + return NULL; + const char *s = cairo_ps_level_to_string (level); + if (s == NULL){ + PyErr_SetString(CairoError, "ps_level_to_string: " + "invalid level argument"); + return NULL; + } + return PyString_FromString(s); +} + +static PyObject * +ps_surface_restrict_to_level (PycairoPSSurface *o, PyObject *args) { + int level; + + if (!PyArg_ParseTuple(args, "i:PSSurface.restrict_to_level", &level)) + return NULL; + cairo_ps_surface_restrict_to_level (o->surface, level); + RETURN_NULL_IF_CAIRO_SURFACE_ERROR(o->surface); + Py_RETURN_NONE; +} + +static PyObject * +ps_surface_set_eps (PycairoPSSurface *o, PyObject *args) { + PyObject *py_eps; + if (!PyArg_ParseTuple(args, "O!:PSSurface.set_eps", + &PyBool_Type, &py_eps)) + return NULL; + cairo_ps_surface_set_eps (o->surface, (py_eps == Py_True)); + RETURN_NULL_IF_CAIRO_SURFACE_ERROR(o->surface); + Py_RETURN_NONE; +} + +static PyObject * +ps_surface_set_size (PycairoPSSurface *o, PyObject *args) { + double width_in_points, height_in_points; + + if (!PyArg_ParseTuple(args, "dd:PSSurface.set_size", + &width_in_points, &height_in_points)) + return NULL; + cairo_ps_surface_set_size (o->surface, width_in_points, height_in_points); + Py_RETURN_NONE; +} + +static PyMethodDef ps_surface_methods[] = { + {"dsc_begin_page_setup", + (PyCFunction)ps_surface_dsc_begin_page_setup, METH_NOARGS }, + {"dsc_begin_setup", (PyCFunction)ps_surface_dsc_begin_setup, METH_NOARGS }, + {"dsc_comment", (PyCFunction)ps_surface_dsc_comment, METH_VARARGS }, + {"get_eps", (PyCFunction)ps_surface_get_eps, METH_NOARGS }, + /* ps_get_levels - not implemented yet*/ + {"ps_level_to_string", (PyCFunction)ps_surface_ps_level_to_string, + METH_VARARGS | METH_STATIC}, + {"restrict_to_level", (PyCFunction)ps_surface_restrict_to_level, + METH_VARARGS }, + {"set_eps", (PyCFunction)ps_surface_set_eps, METH_VARARGS }, + {"set_size", (PyCFunction)ps_surface_set_size, METH_VARARGS }, + {NULL, NULL, 0, NULL}, +}; + +PyTypeObject PycairoPSSurface_Type = { + PyObject_HEAD_INIT(NULL) + 0, /* ob_size */ + "cairo.PSSurface", /* tp_name */ + sizeof(PycairoPSSurface), /* tp_basicsize */ + 0, /* tp_itemsize */ + 0, /* tp_dealloc */ + 0, /* tp_print */ + 0, /* tp_getattr */ + 0, /* tp_setattr */ + 0, /* tp_compare */ + 0, /* tp_repr */ + 0, /* tp_as_number */ + 0, /* 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 */ + 0, /* tp_doc */ + 0, /* tp_traverse */ + 0, /* tp_clear */ + 0, /* tp_richcompare */ + 0, /* tp_weaklistoffset */ + 0, /* tp_iter */ + 0, /* tp_iternext */ + ps_surface_methods, /* tp_methods */ + 0, /* tp_members */ + 0, /* tp_getset */ + &PycairoSurface_Type, /* tp_base */ + 0, /* tp_dict */ + 0, /* tp_descr_get */ + 0, /* tp_descr_set */ + 0, /* tp_dictoffset */ + 0, /* tp_init */ + 0, /* tp_alloc */ + (newfunc)ps_surface_new, /* tp_new */ + 0, /* tp_free */ + 0, /* tp_is_gc */ + 0, /* tp_bases */ +}; +#endif /* CAIRO_HAS_PS_SURFACE */ + + +/* Class SVGSurface(Surface) ----------------------------------------------- */ +#ifdef CAIRO_HAS_SVG_SURFACE +#include <cairo-svg.h> + +static PyObject * +svg_surface_new (PyTypeObject *type, PyObject *args, PyObject *kwds) { + double width_in_points, height_in_points; + PyObject *file, *writer; + cairo_surface_t *sfc; + + if (!PyArg_ParseTuple(args, "Odd:SVGSurface.__new__", + &file, &width_in_points, &height_in_points)) + return NULL; + + if (file == Py_None) { + Py_BEGIN_ALLOW_THREADS; + sfc = cairo_svg_surface_create (NULL, + width_in_points, height_in_points); + Py_END_ALLOW_THREADS; + return PycairoSurface_FromSurface (sfc, NULL); + }else if (PyObject_TypeCheck (file, &PyBaseString_Type)) { + /* string (filename) argument */ + Py_BEGIN_ALLOW_THREADS; + sfc = cairo_svg_surface_create (PyString_AsString(file), + width_in_points, height_in_points); + Py_END_ALLOW_THREADS; + return PycairoSurface_FromSurface (sfc, NULL); + } + /* else: file or file-like object argument */ + writer = PyObject_GetAttrString (file, "write"); + if (writer == NULL || !PyCallable_Check (writer)) { + Py_XDECREF(writer); + PyErr_SetString(PyExc_TypeError, +"SVGSurface argument 1 must be\n" +" None, or\n" +" a filename (str), or\n" +" a file object, or\n" +" an object that has a \"write\" method (like StringIO)." + ); + return NULL; + } + Py_DECREF(writer); + + Py_BEGIN_ALLOW_THREADS; + sfc = cairo_svg_surface_create_for_stream (_write_func, file, + width_in_points, height_in_points); + Py_END_ALLOW_THREADS; + return PycairoSurface_FromSurface (sfc, file); +} + +static PyMethodDef svg_surface_methods[] = { + /* TODO + * cairo_svg_surface_restrict_to_version + * cairo_svg_get_versions + * cairo_svg_version_to_string + */ + {NULL, NULL, 0, NULL}, +}; + +PyTypeObject PycairoSVGSurface_Type = { + PyObject_HEAD_INIT(NULL) + 0, /* ob_size */ + "cairo.SVGSurface", /* tp_name */ + sizeof(PycairoSVGSurface), /* tp_basicsize */ + 0, /* tp_itemsize */ + 0, /* tp_dealloc */ + 0, /* tp_print */ + 0, /* tp_getattr */ + 0, /* tp_setattr */ + 0, /* tp_compare */ + 0, /* tp_repr */ + 0, /* tp_as_number */ + 0, /* 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 */ + 0, /* tp_doc */ + 0, /* tp_traverse */ + 0, /* tp_clear */ + 0, /* tp_richcompare */ + 0, /* tp_weaklistoffset */ + 0, /* tp_iter */ + 0, /* tp_iternext */ + svg_surface_methods, /* tp_methods */ + 0, /* tp_members */ + 0, /* tp_getset */ + &PycairoSurface_Type, /* tp_base */ + 0, /* tp_dict */ + 0, /* tp_descr_get */ + 0, /* tp_descr_set */ + 0, /* tp_dictoffset */ + 0, /* tp_init */ + 0, /* tp_alloc */ + (newfunc)svg_surface_new, /* tp_new */ + 0, /* tp_free */ + 0, /* tp_is_gc */ + 0, /* tp_bases */ +}; +#endif /* CAIRO_HAS_SVG_SURFACE */ + + +/* Class Win32Surface(Surface) -------------------------------------------- */ +#if CAIRO_HAS_WIN32_SURFACE +#include <cairo-win32.h> + +static PyObject * +win32_surface_new (PyTypeObject *type, PyObject *args, PyObject *kwds) { + int hdc; + + if (!PyArg_ParseTuple(args, "i:Win32Surface.__new__", &hdc)) + return NULL; + return PycairoSurface_FromSurface ( + cairo_win32_surface_create ((HDC)hdc), NULL); +} + +static PyMethodDef win32_surface_methods[] = { + {NULL, NULL, 0, NULL}, +}; + +PyTypeObject PycairoWin32Surface_Type = { + PyObject_HEAD_INIT(NULL) + 0, /* ob_size */ + "cairo.Win32Surface", /* tp_name */ + sizeof(PycairoWin32Surface), /* tp_basicsize */ + 0, /* tp_itemsize */ + 0, /* tp_dealloc */ + 0, /* tp_print */ + 0, /* tp_getattr */ + 0, /* tp_setattr */ + 0, /* tp_compare */ + 0, /* tp_repr */ + 0, /* tp_as_number */ + 0, /* 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 */ + 0, /* tp_doc */ + 0, /* tp_traverse */ + 0, /* tp_clear */ + 0, /* tp_richcompare */ + 0, /* tp_weaklistoffset */ + 0, /* tp_iter */ + 0, /* tp_iternext */ + win32_surface_methods, /* tp_methods */ + 0, /* tp_members */ + 0, /* tp_getset */ + &PycairoSurface_Type, /* tp_base */ + 0, /* tp_dict */ + 0, /* tp_descr_get */ + 0, /* tp_descr_set */ + 0, /* tp_dictoffset */ + 0, /* tp_init */ + 0, /* tp_alloc */ + (newfunc)win32_surface_new, /* tp_new */ + 0, /* tp_free */ + 0, /* tp_is_gc */ + 0, /* tp_bases */ +}; +#endif /* CAIRO_HAS_WIN32_SURFACE */ + + +/* Class XlibSurface(Surface) --------------------------------------------- */ +#ifdef CAIRO_HAS_XLIB_SURFACE +#include <cairo-xlib.h> + +static PyObject * +xlib_surface_new (PyTypeObject *type, PyObject *args, PyObject *kwds) { + PyErr_SetString(PyExc_TypeError, + "The XlibSurface type cannot be directly instantiated"); + return NULL; +} + +static PyObject * +xlib_surface_get_depth (PycairoXlibSurface *o) { + return PyInt_FromLong (cairo_xlib_surface_get_depth (o->surface)); +} + +static PyObject * +xlib_surface_get_height (PycairoXlibSurface *o) { + return PyInt_FromLong (cairo_xlib_surface_get_height (o->surface)); +} + +static PyObject * +xlib_surface_get_width (PycairoXlibSurface *o) { + return PyInt_FromLong (cairo_xlib_surface_get_width (o->surface)); +} + +static PyMethodDef xlib_surface_methods[] = { + {"get_depth", (PyCFunction)xlib_surface_get_depth, METH_NOARGS }, + {"get_height",(PyCFunction)xlib_surface_get_height, METH_NOARGS }, + {"get_width", (PyCFunction)xlib_surface_get_width, METH_NOARGS }, + {NULL, NULL, 0, NULL}, +}; + +PyTypeObject PycairoXlibSurface_Type = { + PyObject_HEAD_INIT(NULL) + 0, /* ob_size */ + "cairo.XlibSurface", /* tp_name */ + sizeof(PycairoXlibSurface), /* tp_basicsize */ + 0, /* tp_itemsize */ + 0, /* tp_dealloc */ + 0, /* tp_print */ + 0, /* tp_getattr */ + 0, /* tp_setattr */ + 0, /* tp_compare */ + 0, /* tp_repr */ + 0, /* tp_as_number */ + 0, /* 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 */ + 0, /* tp_doc */ + 0, /* tp_traverse */ + 0, /* tp_clear */ + 0, /* tp_richcompare */ + 0, /* tp_weaklistoffset */ + 0, /* tp_iter */ + 0, /* tp_iternext */ + xlib_surface_methods, /* tp_methods */ + 0, /* tp_members */ + 0, /* tp_getset */ + &PycairoSurface_Type, /* tp_base */ + 0, /* tp_dict */ + 0, /* tp_descr_get */ + 0, /* tp_descr_set */ + 0, /* tp_dictoffset */ + 0, /* tp_init */ + 0, /* tp_alloc */ + (newfunc)xlib_surface_new, /* tp_new */ + 0, /* tp_free */ + 0, /* tp_is_gc */ + 0, /* tp_bases */ +}; +#endif /* CAIRO_HAS_XLIB_SURFACE */ |