mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-11-10 19:56:47 +03:00
39df75bd07
Fix for crash drawing empty strings
895 lines
25 KiB
C
895 lines
25 KiB
C
/*
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* PIL FreeType Driver
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*
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* a FreeType 2.X driver for PIL
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*
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* history:
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* 2001-02-17 fl Created (based on old experimental freetype 1.0 code)
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* 2001-04-18 fl Fixed some egcs compiler nits
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* 2002-11-08 fl Added unicode support; more font metrics, etc
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* 2003-05-20 fl Fixed compilation under 1.5.2 and newer non-unicode builds
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* 2003-09-27 fl Added charmap encoding support
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* 2004-05-15 fl Fixed compilation for FreeType 2.1.8
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* 2004-09-10 fl Added support for monochrome bitmaps
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* 2006-06-18 fl Fixed glyph bearing calculation
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* 2007-12-23 fl Fixed crash in family/style attribute fetch
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* 2008-01-02 fl Handle Unicode filenames properly
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*
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* Copyright (c) 1998-2007 by Secret Labs AB
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*/
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#include "Python.h"
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#include "Imaging.h"
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#include <ft2build.h>
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#include FT_FREETYPE_H
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#include FT_GLYPH_H
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#define KEEP_PY_UNICODE
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#include "py3.h"
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#if !defined(FT_LOAD_TARGET_MONO)
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#define FT_LOAD_TARGET_MONO FT_LOAD_MONOCHROME
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#endif
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/* -------------------------------------------------------------------- */
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/* error table */
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#undef FTERRORS_H
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#undef __FTERRORS_H__
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#define FT_ERRORDEF( e, v, s ) { e, s },
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#define FT_ERROR_START_LIST {
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#define FT_ERROR_END_LIST { 0, 0 } };
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#ifdef HAVE_RAQM
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#include <raqm.h>
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#endif
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#define LAYOUT_FALLBACK 0
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#define LAYOUT_RAQM 1
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typedef struct
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{
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int index, x_offset, x_advance, y_offset;
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unsigned int cluster;
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} GlyphInfo;
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struct {
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int code;
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const char* message;
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} ft_errors[] =
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#include FT_ERRORS_H
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/* -------------------------------------------------------------------- */
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/* font objects */
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static FT_Library library;
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typedef struct {
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PyObject_HEAD
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FT_Face face;
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unsigned char *font_bytes;
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int layout_engine;
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} FontObject;
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static PyTypeObject Font_Type;
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/* round a 26.6 pixel coordinate to the nearest larger integer */
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#define PIXEL(x) ((((x)+63) & -64)>>6)
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static PyObject*
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geterror(int code)
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{
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int i;
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for (i = 0; ft_errors[i].message; i++)
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if (ft_errors[i].code == code) {
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PyErr_SetString(PyExc_IOError, ft_errors[i].message);
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return NULL;
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}
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PyErr_SetString(PyExc_IOError, "unknown freetype error");
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return NULL;
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}
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static PyObject*
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getfont(PyObject* self_, PyObject* args, PyObject* kw)
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{
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/* create a font object from a file name and a size (in pixels) */
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FontObject* self;
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int error = 0;
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char* filename = NULL;
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int size;
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int index = 0;
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int layout_engine = 0;
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unsigned char* encoding;
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unsigned char* font_bytes;
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int font_bytes_size = 0;
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static char* kwlist[] = {
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"filename", "size", "index", "encoding", "font_bytes",
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"layout_engine", NULL
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};
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if (!library) {
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PyErr_SetString(
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PyExc_IOError,
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"failed to initialize FreeType library"
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);
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return NULL;
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}
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if (!PyArg_ParseTupleAndKeywords(args, kw, "eti|is"PY_ARG_BYTES_LENGTH"i",
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kwlist,
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Py_FileSystemDefaultEncoding, &filename,
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&size, &index, &encoding, &font_bytes,
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&font_bytes_size, &layout_engine)) {
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return NULL;
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}
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self = PyObject_New(FontObject, &Font_Type);
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if (!self) {
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if (filename)
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PyMem_Free(filename);
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return NULL;
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}
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self->face = NULL;
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self->layout_engine = layout_engine;
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if (filename && font_bytes_size <= 0) {
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self->font_bytes = NULL;
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error = FT_New_Face(library, filename, index, &self->face);
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} else {
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/* need to have allocated storage for font_bytes for the life of the object.*/
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/* Don't free this before FT_Done_Face */
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self->font_bytes = PyMem_Malloc(font_bytes_size);
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if (!self->font_bytes) {
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error = 65; // Out of Memory in Freetype.
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}
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if (!error) {
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memcpy(self->font_bytes, font_bytes, (size_t)font_bytes_size);
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error = FT_New_Memory_Face(library, (FT_Byte*)self->font_bytes,
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font_bytes_size, index, &self->face);
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}
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}
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if (!error)
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error = FT_Set_Pixel_Sizes(self->face, 0, size);
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if (!error && encoding && strlen((char*) encoding) == 4) {
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FT_Encoding encoding_tag = FT_MAKE_TAG(
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encoding[0], encoding[1], encoding[2], encoding[3]
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);
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error = FT_Select_Charmap(self->face, encoding_tag);
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}
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if (filename)
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PyMem_Free(filename);
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if (error) {
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if (self->font_bytes) {
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PyMem_Free(self->font_bytes);
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}
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Py_DECREF(self);
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return geterror(error);
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}
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return (PyObject*) self;
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}
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static int
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font_getchar(PyObject* string, int index, FT_ULong* char_out)
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{
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if (PyUnicode_Check(string)) {
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Py_UNICODE* p = PyUnicode_AS_UNICODE(string);
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int size = PyUnicode_GET_SIZE(string);
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if (index >= size)
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return 0;
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*char_out = p[index];
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return 1;
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}
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#if PY_VERSION_HEX < 0x03000000
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if (PyString_Check(string)) {
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unsigned char* p = (unsigned char*) PyString_AS_STRING(string);
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int size = PyString_GET_SIZE(string);
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if (index >= size)
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return 0;
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*char_out = (unsigned char) p[index];
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return 1;
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}
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#endif
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return 0;
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}
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#ifdef HAVE_RAQM
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static size_t
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text_layout_raqm(PyObject* string, FontObject* self, const char* dir,
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PyObject *features ,GlyphInfo **glyph_info, int mask)
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{
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int i = 0;
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raqm_t *rq;
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size_t count = 0;
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raqm_glyph_t *glyphs;
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raqm_direction_t direction;
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rq = raqm_create();
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if (rq == NULL) {
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PyErr_SetString(PyExc_ValueError, "raqm_create() failed.");
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goto failed;
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}
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if (PyUnicode_Check(string)) {
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Py_UNICODE *text = PyUnicode_AS_UNICODE(string);
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Py_ssize_t size = PyUnicode_GET_SIZE(string);
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if (! size) {
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/* return 0 and clean up, no glyphs==no size,
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and raqm fails with empty strings */
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goto failed;
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}
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if (!raqm_set_text(rq, (const uint32_t *)(text), size)) {
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PyErr_SetString(PyExc_ValueError, "raqm_set_text() failed");
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goto failed;
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}
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}
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#if PY_VERSION_HEX < 0x03000000
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else if (PyString_Check(string)) {
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char *text = PyString_AS_STRING(string);
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int size = PyString_GET_SIZE(string);
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if (! size) {
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goto failed;
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}
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if (!raqm_set_text_utf8(rq, text, size)) {
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PyErr_SetString(PyExc_ValueError, "raqm_set_text_utf8() failed");
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goto failed;
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}
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}
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#endif
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else {
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PyErr_SetString(PyExc_TypeError, "expected string");
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goto failed;
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}
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direction = RAQM_DIRECTION_DEFAULT;
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if (dir) {
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if (strcmp(dir, "rtl") == 0)
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direction = RAQM_DIRECTION_RTL;
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else if (strcmp(dir, "ltr") == 0)
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direction = RAQM_DIRECTION_LTR;
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else if (strcmp(dir, "ttb") == 0)
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direction = RAQM_DIRECTION_TTB;
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else {
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PyErr_SetString(PyExc_ValueError, "direction must be either 'rtl', 'ltr' or 'ttb'");
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goto failed;
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}
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}
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if (!raqm_set_par_direction(rq, direction)) {
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PyErr_SetString(PyExc_ValueError, "raqm_set_par_direction() failed");
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goto failed;
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}
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if (features != Py_None) {
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int len;
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PyObject *seq = PySequence_Fast(features, "expected a sequence");
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if (!seq) {
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goto failed;
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}
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len = PySequence_Size(seq);
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for (i = 0; i < len; i++) {
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PyObject *item = PySequence_Fast_GET_ITEM(seq, i);
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char *feature = NULL;
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Py_ssize_t size = 0;
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PyObject *bytes;
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#if PY_VERSION_HEX >= 0x03000000
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if (!PyUnicode_Check(item)) {
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#else
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if (!PyUnicode_Check(item) && !PyString_Check(item)) {
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#endif
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PyErr_SetString(PyExc_TypeError, "expected a string");
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goto failed;
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}
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if (PyUnicode_Check(item)) {
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bytes = PyUnicode_AsUTF8String(item);
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if (bytes == NULL)
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goto failed;
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feature = PyBytes_AS_STRING(bytes);
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size = PyBytes_GET_SIZE(bytes);
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}
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#if PY_VERSION_HEX < 0x03000000
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else {
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feature = PyString_AsString(item);
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size = PyString_GET_SIZE(item);
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}
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#endif
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if (!raqm_add_font_feature(rq, feature, size)) {
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PyErr_SetString(PyExc_ValueError, "raqm_add_font_feature() failed");
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goto failed;
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}
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}
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}
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|
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if (!raqm_set_freetype_face(rq, self->face)) {
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PyErr_SetString(PyExc_RuntimeError, "raqm_set_freetype_face() failed.");
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goto failed;
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}
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if (!raqm_layout (rq)) {
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PyErr_SetString(PyExc_RuntimeError, "raqm_layout() failed.");
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goto failed;
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}
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glyphs = raqm_get_glyphs(rq, &count);
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if (glyphs == NULL) {
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PyErr_SetString(PyExc_ValueError, "raqm_get_glyphs() failed.");
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count = 0;
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goto failed;
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}
|
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|
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(*glyph_info) = PyMem_New(GlyphInfo, count);
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if ((*glyph_info) == NULL) {
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PyErr_SetString(PyExc_MemoryError, "PyMem_New() failed");
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count = 0;
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goto failed;
|
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}
|
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|
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for (i = 0; i < count; i++) {
|
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(*glyph_info)[i].index = glyphs[i].index;
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(*glyph_info)[i].x_offset = glyphs[i].x_offset;
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(*glyph_info)[i].x_advance = glyphs[i].x_advance;
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(*glyph_info)[i].y_offset = glyphs[i].y_offset;
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(*glyph_info)[i].cluster = glyphs[i].cluster;
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}
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failed:
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raqm_destroy (rq);
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return count;
|
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}
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#endif
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|
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static size_t
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text_layout_fallback(PyObject* string, FontObject* self, const char* dir,
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PyObject *features ,GlyphInfo **glyph_info, int mask)
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{
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int error, load_flags;
|
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FT_ULong ch;
|
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Py_ssize_t count;
|
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FT_GlyphSlot glyph;
|
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FT_Bool kerning = FT_HAS_KERNING(self->face);
|
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FT_UInt last_index = 0;
|
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int i;
|
|
|
|
if (features != Py_None || dir != NULL) {
|
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PyErr_SetString(PyExc_KeyError, "setting text direction or font features is not supported without libraqm");
|
|
}
|
|
#if PY_VERSION_HEX >= 0x03000000
|
|
if (!PyUnicode_Check(string)) {
|
|
#else
|
|
if (!PyUnicode_Check(string) && !PyString_Check(string)) {
|
|
#endif
|
|
PyErr_SetString(PyExc_TypeError, "expected string");
|
|
return 0;
|
|
}
|
|
|
|
count = 0;
|
|
while (font_getchar(string, count, &ch)) {
|
|
count++;
|
|
}
|
|
if (count == 0) {
|
|
return 0;
|
|
}
|
|
|
|
(*glyph_info) = PyMem_New(GlyphInfo, count);
|
|
if ((*glyph_info) == NULL) {
|
|
PyErr_SetString(PyExc_MemoryError, "PyMem_New() failed");
|
|
return 0;
|
|
}
|
|
|
|
load_flags = FT_LOAD_RENDER|FT_LOAD_NO_BITMAP;
|
|
if (mask) {
|
|
load_flags |= FT_LOAD_TARGET_MONO;
|
|
}
|
|
for (i = 0; font_getchar(string, i, &ch); i++) {
|
|
(*glyph_info)[i].index = FT_Get_Char_Index(self->face, ch);
|
|
error = FT_Load_Glyph(self->face, (*glyph_info)[i].index, load_flags);
|
|
if (error) {
|
|
geterror(error);
|
|
return 0;
|
|
}
|
|
glyph = self->face->glyph;
|
|
(*glyph_info)[i].x_offset=0;
|
|
(*glyph_info)[i].y_offset=0;
|
|
if (kerning && last_index && (*glyph_info)[i].index) {
|
|
FT_Vector delta;
|
|
if (FT_Get_Kerning(self->face, last_index, (*glyph_info)[i].index,
|
|
ft_kerning_default,&delta) == 0)
|
|
(*glyph_info)[i-1].x_advance += PIXEL(delta.x);
|
|
}
|
|
|
|
(*glyph_info)[i].x_advance = glyph->metrics.horiAdvance;
|
|
last_index = (*glyph_info)[i].index;
|
|
(*glyph_info)[i].cluster = ch;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
static size_t
|
|
text_layout(PyObject* string, FontObject* self, const char* dir,
|
|
PyObject *features, GlyphInfo **glyph_info, int mask)
|
|
{
|
|
size_t count;
|
|
#ifdef HAVE_RAQM
|
|
if (self->layout_engine == LAYOUT_RAQM) {
|
|
count = text_layout_raqm(string, self, dir, features, glyph_info, mask);
|
|
} else {
|
|
count = text_layout_fallback(string, self, dir, features, glyph_info, mask);
|
|
}
|
|
#else
|
|
count = text_layout_fallback(string, self, dir, features, glyph_info, mask);
|
|
#endif
|
|
return count;
|
|
}
|
|
|
|
static PyObject*
|
|
font_getsize(FontObject* self, PyObject* args)
|
|
{
|
|
int i, x, y_max, y_min;
|
|
FT_Face face;
|
|
int xoffset, yoffset;
|
|
const char *dir = NULL;
|
|
size_t count;
|
|
GlyphInfo *glyph_info = NULL;
|
|
PyObject *features = Py_None;
|
|
|
|
/* calculate size and bearing for a given string */
|
|
|
|
PyObject* string;
|
|
if (!PyArg_ParseTuple(args, "O|zO:getsize", &string, &dir, &features))
|
|
return NULL;
|
|
|
|
face = NULL;
|
|
xoffset = yoffset = 0;
|
|
y_max = y_min = 0;
|
|
|
|
count = text_layout(string, self, dir, features, &glyph_info, 0);
|
|
if (PyErr_Occurred()) {
|
|
return NULL;
|
|
}
|
|
|
|
|
|
for (x = i = 0; i < count; i++) {
|
|
int index, error;
|
|
FT_BBox bbox;
|
|
FT_Glyph glyph;
|
|
face = self->face;
|
|
index = glyph_info[i].index;
|
|
/* Note: bitmap fonts within ttf fonts do not work, see #891/pr#960
|
|
* Yifu Yu<root@jackyyf.com>, 2014-10-15
|
|
*/
|
|
error = FT_Load_Glyph(face, index, FT_LOAD_DEFAULT|FT_LOAD_NO_BITMAP);
|
|
if (error)
|
|
return geterror(error);
|
|
|
|
if (i == 0 && face->glyph->metrics.horiBearingX < 0) {
|
|
xoffset = face->glyph->metrics.horiBearingX;
|
|
x -= xoffset;
|
|
}
|
|
|
|
x += glyph_info[i].x_advance;
|
|
|
|
if (i == count - 1)
|
|
{
|
|
int offset;
|
|
offset = glyph_info[i].x_advance -
|
|
face->glyph->metrics.width -
|
|
face->glyph->metrics.horiBearingX;
|
|
if (offset < 0)
|
|
x -= offset;
|
|
}
|
|
|
|
FT_Get_Glyph(face->glyph, &glyph);
|
|
FT_Glyph_Get_CBox(glyph, FT_GLYPH_BBOX_SUBPIXELS, &bbox);
|
|
bbox.yMax -= glyph_info[i].y_offset;
|
|
bbox.yMin -= glyph_info[i].y_offset;
|
|
if (bbox.yMax > y_max)
|
|
y_max = bbox.yMax;
|
|
if (bbox.yMin < y_min)
|
|
y_min = bbox.yMin;
|
|
|
|
/* find max distance of baseline from top */
|
|
if (face->glyph->metrics.horiBearingY > yoffset)
|
|
yoffset = face->glyph->metrics.horiBearingY;
|
|
|
|
FT_Done_Glyph(glyph);
|
|
}
|
|
|
|
if (glyph_info) {
|
|
PyMem_Free(glyph_info);
|
|
glyph_info = NULL;
|
|
}
|
|
|
|
if (face) {
|
|
|
|
/* left bearing */
|
|
if (xoffset < 0)
|
|
x -= xoffset;
|
|
else
|
|
xoffset = 0;
|
|
/* difference between the font ascender and the distance of
|
|
* the baseline from the top */
|
|
yoffset = PIXEL(self->face->size->metrics.ascender - yoffset);
|
|
}
|
|
|
|
return Py_BuildValue(
|
|
"(ii)(ii)",
|
|
PIXEL(x), PIXEL(y_max - y_min),
|
|
PIXEL(xoffset), yoffset
|
|
);
|
|
}
|
|
|
|
static PyObject*
|
|
font_getabc(FontObject* self, PyObject* args)
|
|
{
|
|
FT_ULong ch;
|
|
FT_Face face;
|
|
double a, b, c;
|
|
|
|
/* calculate ABC values for a given string */
|
|
|
|
PyObject* string;
|
|
if (!PyArg_ParseTuple(args, "O:getabc", &string))
|
|
return NULL;
|
|
|
|
#if PY_VERSION_HEX >= 0x03000000
|
|
if (!PyUnicode_Check(string)) {
|
|
#else
|
|
if (!PyUnicode_Check(string) && !PyString_Check(string)) {
|
|
#endif
|
|
PyErr_SetString(PyExc_TypeError, "expected string");
|
|
return NULL;
|
|
}
|
|
|
|
if (font_getchar(string, 0, &ch)) {
|
|
int index, error;
|
|
face = self->face;
|
|
index = FT_Get_Char_Index(face, ch);
|
|
/* Note: bitmap fonts within ttf fonts do not work, see #891/pr#960 */
|
|
error = FT_Load_Glyph(face, index, FT_LOAD_DEFAULT|FT_LOAD_NO_BITMAP);
|
|
if (error)
|
|
return geterror(error);
|
|
a = face->glyph->metrics.horiBearingX / 64.0;
|
|
b = face->glyph->metrics.width / 64.0;
|
|
c = (face->glyph->metrics.horiAdvance -
|
|
face->glyph->metrics.horiBearingX -
|
|
face->glyph->metrics.width) / 64.0;
|
|
} else
|
|
a = b = c = 0.0;
|
|
|
|
return Py_BuildValue("ddd", a, b, c);
|
|
}
|
|
|
|
static PyObject*
|
|
font_render(FontObject* self, PyObject* args)
|
|
{
|
|
int i, x, y;
|
|
Imaging im;
|
|
int index, error, ascender;
|
|
int load_flags;
|
|
unsigned char *source;
|
|
FT_GlyphSlot glyph;
|
|
/* render string into given buffer (the buffer *must* have
|
|
the right size, or this will crash) */
|
|
PyObject* string;
|
|
Py_ssize_t id;
|
|
int mask = 0;
|
|
int temp;
|
|
int xx, x0, x1;
|
|
const char *dir = NULL;
|
|
size_t count;
|
|
GlyphInfo *glyph_info;
|
|
PyObject *features = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "On|izO:render", &string, &id, &mask, &dir, &features)) {
|
|
return NULL;
|
|
}
|
|
|
|
glyph_info = NULL;
|
|
count = text_layout(string, self, dir, features, &glyph_info, mask);
|
|
if (PyErr_Occurred()) {
|
|
return NULL;
|
|
}
|
|
if (count == 0) {
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
im = (Imaging) id;
|
|
/* Note: bitmap fonts within ttf fonts do not work, see #891/pr#960 */
|
|
load_flags = FT_LOAD_RENDER|FT_LOAD_NO_BITMAP;
|
|
if (mask)
|
|
load_flags |= FT_LOAD_TARGET_MONO;
|
|
|
|
ascender = 0;
|
|
for (i = 0; i < count; i++) {
|
|
index = glyph_info[i].index;
|
|
error = FT_Load_Glyph(self->face, index, load_flags);
|
|
if (error)
|
|
return geterror(error);
|
|
|
|
glyph = self->face->glyph;
|
|
temp = (glyph->bitmap.rows - glyph->bitmap_top);
|
|
temp -= PIXEL(glyph_info[i].y_offset);
|
|
if (temp > ascender)
|
|
ascender = temp;
|
|
}
|
|
|
|
for (x = i = 0; i < count; i++) {
|
|
if (i == 0 && self->face->glyph->metrics.horiBearingX < 0)
|
|
x = -self->face->glyph->metrics.horiBearingX;
|
|
|
|
index = glyph_info[i].index;
|
|
error = FT_Load_Glyph(self->face, index, load_flags);
|
|
if (error)
|
|
return geterror(error);
|
|
|
|
if (i == 0 && self->face->glyph->metrics.horiBearingX < 0) {
|
|
x = -self->face->glyph->metrics.horiBearingX;
|
|
}
|
|
|
|
glyph = self->face->glyph;
|
|
|
|
source = (unsigned char*) glyph->bitmap.buffer;
|
|
xx = PIXEL(x) + glyph->bitmap_left;
|
|
xx += PIXEL(glyph_info[i].x_offset);
|
|
x0 = 0;
|
|
x1 = glyph->bitmap.width;
|
|
if (xx < 0)
|
|
x0 = -xx;
|
|
if (xx + x1 > im->xsize)
|
|
x1 = im->xsize - xx;
|
|
|
|
if (mask) {
|
|
/* use monochrome mask (on palette images, etc) */
|
|
for (y = 0; y < glyph->bitmap.rows; y++) {
|
|
int yy = y + im->ysize - (PIXEL(glyph->metrics.horiBearingY) + ascender);
|
|
yy -= PIXEL(glyph_info[i].y_offset);
|
|
if (yy >= 0 && yy < im->ysize) {
|
|
/* blend this glyph into the buffer */
|
|
unsigned char *target = im->image8[yy] + xx;
|
|
int i, j, m = 128;
|
|
for (i = j = 0; j < x1; j++) {
|
|
if (j >= x0 && (source[i] & m))
|
|
target[j] = 255;
|
|
if (!(m >>= 1)) {
|
|
m = 128;
|
|
i++;
|
|
}
|
|
}
|
|
}
|
|
source += glyph->bitmap.pitch;
|
|
}
|
|
} else {
|
|
/* use antialiased rendering */
|
|
for (y = 0; y < glyph->bitmap.rows; y++) {
|
|
int yy = y + im->ysize - (PIXEL(glyph->metrics.horiBearingY) + ascender);
|
|
yy -= PIXEL(glyph_info[i].y_offset);
|
|
if (yy >= 0 && yy < im->ysize) {
|
|
/* blend this glyph into the buffer */
|
|
|
|
int i;
|
|
unsigned char *target = im->image8[yy] + xx;
|
|
for (i = x0; i < x1; i++) {
|
|
if (target[i] < source[i])
|
|
target[i] = source[i];
|
|
}
|
|
}
|
|
source += glyph->bitmap.pitch;
|
|
}
|
|
}
|
|
x += glyph_info[i].x_advance;
|
|
}
|
|
|
|
PyMem_Del(glyph_info);
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
static void
|
|
font_dealloc(FontObject* self)
|
|
{
|
|
if (self->face) {
|
|
FT_Done_Face(self->face);
|
|
}
|
|
if (self->font_bytes) {
|
|
PyMem_Free(self->font_bytes);
|
|
}
|
|
PyObject_Del(self);
|
|
}
|
|
|
|
static PyMethodDef font_methods[] = {
|
|
{"render", (PyCFunction) font_render, METH_VARARGS},
|
|
{"getsize", (PyCFunction) font_getsize, METH_VARARGS},
|
|
{"getabc", (PyCFunction) font_getabc, METH_VARARGS},
|
|
{NULL, NULL}
|
|
};
|
|
|
|
static PyObject*
|
|
font_getattr_family(FontObject* self, void* closure)
|
|
{
|
|
#if PY_VERSION_HEX >= 0x03000000
|
|
if (self->face->family_name)
|
|
return PyUnicode_FromString(self->face->family_name);
|
|
#else
|
|
if (self->face->family_name)
|
|
return PyString_FromString(self->face->family_name);
|
|
#endif
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
static PyObject*
|
|
font_getattr_style(FontObject* self, void* closure)
|
|
{
|
|
#if PY_VERSION_HEX >= 0x03000000
|
|
if (self->face->style_name)
|
|
return PyUnicode_FromString(self->face->style_name);
|
|
#else
|
|
if (self->face->style_name)
|
|
return PyString_FromString(self->face->style_name);
|
|
#endif
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
static PyObject*
|
|
font_getattr_ascent(FontObject* self, void* closure)
|
|
{
|
|
return PyInt_FromLong(PIXEL(self->face->size->metrics.ascender));
|
|
}
|
|
|
|
static PyObject*
|
|
font_getattr_descent(FontObject* self, void* closure)
|
|
{
|
|
return PyInt_FromLong(-PIXEL(self->face->size->metrics.descender));
|
|
}
|
|
|
|
static PyObject*
|
|
font_getattr_height(FontObject* self, void* closure)
|
|
{
|
|
return PyInt_FromLong(PIXEL(self->face->size->metrics.height));
|
|
}
|
|
|
|
static PyObject*
|
|
font_getattr_x_ppem(FontObject* self, void* closure)
|
|
{
|
|
return PyInt_FromLong(self->face->size->metrics.x_ppem);
|
|
}
|
|
|
|
static PyObject*
|
|
font_getattr_y_ppem(FontObject* self, void* closure)
|
|
{
|
|
return PyInt_FromLong(self->face->size->metrics.y_ppem);
|
|
}
|
|
|
|
|
|
static PyObject*
|
|
font_getattr_glyphs(FontObject* self, void* closure)
|
|
{
|
|
return PyInt_FromLong(self->face->num_glyphs);
|
|
}
|
|
|
|
static struct PyGetSetDef font_getsetters[] = {
|
|
{ "family", (getter) font_getattr_family },
|
|
{ "style", (getter) font_getattr_style },
|
|
{ "ascent", (getter) font_getattr_ascent },
|
|
{ "descent", (getter) font_getattr_descent },
|
|
{ "height", (getter) font_getattr_height },
|
|
{ "x_ppem", (getter) font_getattr_x_ppem },
|
|
{ "y_ppem", (getter) font_getattr_y_ppem },
|
|
{ "glyphs", (getter) font_getattr_glyphs },
|
|
{ NULL }
|
|
};
|
|
|
|
static PyTypeObject Font_Type = {
|
|
PyVarObject_HEAD_INIT(NULL, 0)
|
|
"Font", sizeof(FontObject), 0,
|
|
/* methods */
|
|
(destructor)font_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, /*tp_flags*/
|
|
0, /*tp_doc*/
|
|
0, /*tp_traverse*/
|
|
0, /*tp_clear*/
|
|
0, /*tp_richcompare*/
|
|
0, /*tp_weaklistoffset*/
|
|
0, /*tp_iter*/
|
|
0, /*tp_iternext*/
|
|
font_methods, /*tp_methods*/
|
|
0, /*tp_members*/
|
|
font_getsetters, /*tp_getset*/
|
|
};
|
|
|
|
static PyMethodDef _functions[] = {
|
|
{"getfont", (PyCFunction) getfont, METH_VARARGS|METH_KEYWORDS},
|
|
{NULL, NULL}
|
|
};
|
|
|
|
static int
|
|
setup_module(PyObject* m) {
|
|
PyObject* d;
|
|
PyObject* v;
|
|
int major, minor, patch;
|
|
|
|
d = PyModule_GetDict(m);
|
|
|
|
/* Ready object type */
|
|
PyType_Ready(&Font_Type);
|
|
|
|
if (FT_Init_FreeType(&library))
|
|
return 0; /* leave it uninitialized */
|
|
|
|
FT_Library_Version(library, &major, &minor, &patch);
|
|
|
|
#if PY_VERSION_HEX >= 0x03000000
|
|
v = PyUnicode_FromFormat("%d.%d.%d", major, minor, patch);
|
|
#else
|
|
v = PyString_FromFormat("%d.%d.%d", major, minor, patch);
|
|
#endif
|
|
PyDict_SetItemString(d, "freetype2_version", v);
|
|
|
|
|
|
#ifdef HAVE_RAQM
|
|
v = PyBool_FromLong(1);
|
|
#else
|
|
v = PyBool_FromLong(0);
|
|
#endif
|
|
PyDict_SetItemString(d, "HAVE_RAQM", v);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if PY_VERSION_HEX >= 0x03000000
|
|
PyMODINIT_FUNC
|
|
PyInit__imagingft(void) {
|
|
PyObject* m;
|
|
|
|
static PyModuleDef module_def = {
|
|
PyModuleDef_HEAD_INIT,
|
|
"_imagingft", /* m_name */
|
|
NULL, /* m_doc */
|
|
-1, /* m_size */
|
|
_functions, /* m_methods */
|
|
};
|
|
|
|
m = PyModule_Create(&module_def);
|
|
|
|
if (setup_module(m) < 0)
|
|
return NULL;
|
|
|
|
return m;
|
|
}
|
|
#else
|
|
PyMODINIT_FUNC
|
|
init_imagingft(void)
|
|
{
|
|
PyObject* m = Py_InitModule("_imagingft", _functions);
|
|
setup_module(m);
|
|
}
|
|
#endif
|
|
|