| /* -*- 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 <krh@redhat.com> |
| * Carl Worth <cworth@cworth.org> |
| * Adrian Johnson <ajohnson@redneon.com> |
| */ |
| |
| #ifndef CAIRO_PDF_OPERATORS_H |
| #define CAIRO_PDF_OPERATORS_H |
| |
| #include "cairo-compiler-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_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, |
| 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, |
| 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, |
| 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, |
| 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 */ |