/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ /* cairo - a vector graphics library with display and print output * * Copyright © 2004 Red Hat, Inc * Copyright © 2006 Red Hat, Inc * Copyright © 2007 Adrian Johnson * * 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., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, 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. * * The Original Code is the cairo graphics library. * * The Initial Developer of the Original Code is University of Southern * California. * * Contributor(s): * Kristian Høgsberg * Carl Worth * Adrian Johnson */ #ifndef CAIRO_PDF_OPERATORS_H #define CAIRO_PDF_OPERATORS_H #include "cairo-compiler-private.h" #include "cairo-error-private.h" #include "cairo-types-private.h" /* The glyph buffer size is based on the expected maximum glyphs in a * line so that an entire line can be emitted in as one string. If the * glyphs in a line exceeds this size the only downside is the slight * overhead of emitting two strings. */ #define PDF_GLYPH_BUFFER_SIZE 200 typedef cairo_int_status_t (*cairo_pdf_operators_use_font_subset_t) (unsigned int font_id, unsigned int subset_id, void *closure); typedef struct _cairo_pdf_glyph { unsigned int glyph_index; double x_position; double x_advance; } cairo_pdf_glyph_t; typedef struct _cairo_pdf_operators { cairo_output_stream_t *stream; cairo_matrix_t cairo_to_pdf; cairo_scaled_font_subsets_t *font_subsets; cairo_pdf_operators_use_font_subset_t use_font_subset; void *use_font_subset_closure; cairo_bool_t use_actual_text; cairo_bool_t in_text_object; /* inside BT/ET pair */ /* PDF text state */ cairo_bool_t is_new_text_object; /* text object started but matrix and font not yet selected */ unsigned int font_id; unsigned int subset_id; cairo_matrix_t text_matrix; /* PDF text matrix (Tlm in the PDF reference) */ cairo_matrix_t cairo_to_pdftext; /* translate cairo coords to PDF text space */ cairo_matrix_t font_matrix_inverse; double cur_x; /* Current position in PDF text space (Tm in the PDF reference) */ double cur_y; int hex_width; cairo_bool_t is_latin; int num_glyphs; double glyph_buf_x_pos; cairo_pdf_glyph_t glyphs[PDF_GLYPH_BUFFER_SIZE]; /* PDF line style */ cairo_bool_t has_line_style; double line_width; cairo_line_cap_t line_cap; cairo_line_join_t line_join; double miter_limit; cairo_bool_t has_dashes; } cairo_pdf_operators_t; cairo_private void _cairo_pdf_operators_init (cairo_pdf_operators_t *pdf_operators, cairo_output_stream_t *stream, cairo_matrix_t *cairo_to_pdf, cairo_scaled_font_subsets_t *font_subsets); cairo_private cairo_status_t _cairo_pdf_operators_fini (cairo_pdf_operators_t *pdf_operators); cairo_private void _cairo_pdf_operators_set_font_subsets_callback (cairo_pdf_operators_t *pdf_operators, cairo_pdf_operators_use_font_subset_t use_font_subset, void *closure); cairo_private void _cairo_pdf_operators_set_stream (cairo_pdf_operators_t *pdf_operators, cairo_output_stream_t *stream); cairo_private void _cairo_pdf_operators_set_cairo_to_pdf_matrix (cairo_pdf_operators_t *pdf_operators, cairo_matrix_t *cairo_to_pdf); cairo_private void _cairo_pdf_operators_enable_actual_text (cairo_pdf_operators_t *pdf_operators, cairo_bool_t enable); cairo_private cairo_status_t _cairo_pdf_operators_flush (cairo_pdf_operators_t *pdf_operators); cairo_private void _cairo_pdf_operators_reset (cairo_pdf_operators_t *pdf_operators); cairo_private cairo_int_status_t _cairo_pdf_operators_clip (cairo_pdf_operators_t *pdf_operators, const cairo_path_fixed_t *path, cairo_fill_rule_t fill_rule); cairo_private cairo_int_status_t _cairo_pdf_operators_emit_stroke_style (cairo_pdf_operators_t *pdf_operators, const cairo_stroke_style_t *style, double scale); cairo_private cairo_int_status_t _cairo_pdf_operators_stroke (cairo_pdf_operators_t *pdf_operators, const cairo_path_fixed_t *path, const cairo_stroke_style_t *style, const cairo_matrix_t *ctm, const cairo_matrix_t *ctm_inverse); cairo_private cairo_int_status_t _cairo_pdf_operators_fill (cairo_pdf_operators_t *pdf_operators, const cairo_path_fixed_t *path, cairo_fill_rule_t fill_rule); cairo_private cairo_int_status_t _cairo_pdf_operators_fill_stroke (cairo_pdf_operators_t *pdf_operators, const cairo_path_fixed_t *path, cairo_fill_rule_t fill_rule, const cairo_stroke_style_t *style, const cairo_matrix_t *ctm, const cairo_matrix_t *ctm_inverse); cairo_private cairo_int_status_t _cairo_pdf_operators_show_text_glyphs (cairo_pdf_operators_t *pdf_operators, const char *utf8, int utf8_len, cairo_glyph_t *glyphs, int num_glyphs, const cairo_text_cluster_t *clusters, int num_clusters, cairo_text_cluster_flags_t cluster_flags, cairo_scaled_font_t *scaled_font); #endif /* CAIRO_PDF_OPERATORS_H */