forked from KolibriOS/kolibrios
175 lines
6.3 KiB
C
175 lines
6.3 KiB
C
/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
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/* cairo - a vector graphics library with display and print output
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*
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* Copyright © 2004 Red Hat, Inc
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* Copyright © 2006 Red Hat, Inc
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* Copyright © 2007 Adrian Johnson
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*
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* This library is free software; you can redistribute it and/or
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* modify it either under the terms of the GNU Lesser General Public
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* License version 2.1 as published by the Free Software Foundation
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* (the "LGPL") or, at your option, under the terms of the Mozilla
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* Public License Version 1.1 (the "MPL"). If you do not alter this
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* notice, a recipient may use your version of this file under either
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* the MPL or the LGPL.
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*
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* You should have received a copy of the LGPL along with this library
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* in the file COPYING-LGPL-2.1; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
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* You should have received a copy of the MPL along with this library
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* in the file COPYING-MPL-1.1
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
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* OF ANY KIND, either express or implied. See the LGPL or the MPL for
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* the specific language governing rights and limitations.
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*
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* The Original Code is the cairo graphics library.
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*
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* The Initial Developer of the Original Code is University of Southern
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* California.
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*
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* Contributor(s):
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* Kristian Høgsberg <krh@redhat.com>
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* Carl Worth <cworth@cworth.org>
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* Adrian Johnson <ajohnson@redneon.com>
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*/
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#ifndef CAIRO_PDF_OPERATORS_H
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#define CAIRO_PDF_OPERATORS_H
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#include "cairo-compiler-private.h"
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#include "cairo-error-private.h"
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#include "cairo-types-private.h"
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/* The glyph buffer size is based on the expected maximum glyphs in a
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* line so that an entire line can be emitted in as one string. If the
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* glyphs in a line exceeds this size the only downside is the slight
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* overhead of emitting two strings.
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*/
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#define PDF_GLYPH_BUFFER_SIZE 200
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typedef cairo_int_status_t
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(*cairo_pdf_operators_use_font_subset_t) (unsigned int font_id,
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unsigned int subset_id,
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void *closure);
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typedef struct _cairo_pdf_glyph {
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unsigned int glyph_index;
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double x_position;
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double x_advance;
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} cairo_pdf_glyph_t;
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typedef struct _cairo_pdf_operators {
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cairo_output_stream_t *stream;
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cairo_matrix_t cairo_to_pdf;
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cairo_scaled_font_subsets_t *font_subsets;
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cairo_pdf_operators_use_font_subset_t use_font_subset;
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void *use_font_subset_closure;
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cairo_bool_t use_actual_text;
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cairo_bool_t in_text_object; /* inside BT/ET pair */
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/* PDF text state */
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cairo_bool_t is_new_text_object; /* text object started but matrix and font not yet selected */
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unsigned int font_id;
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unsigned int subset_id;
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cairo_matrix_t text_matrix; /* PDF text matrix (Tlm in the PDF reference) */
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cairo_matrix_t cairo_to_pdftext; /* translate cairo coords to PDF text space */
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cairo_matrix_t font_matrix_inverse;
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double cur_x; /* Current position in PDF text space (Tm in the PDF reference) */
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double cur_y;
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int hex_width;
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cairo_bool_t is_latin;
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int num_glyphs;
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double glyph_buf_x_pos;
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cairo_pdf_glyph_t glyphs[PDF_GLYPH_BUFFER_SIZE];
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/* PDF line style */
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cairo_bool_t has_line_style;
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double line_width;
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cairo_line_cap_t line_cap;
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cairo_line_join_t line_join;
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double miter_limit;
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cairo_bool_t has_dashes;
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} cairo_pdf_operators_t;
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cairo_private void
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_cairo_pdf_operators_init (cairo_pdf_operators_t *pdf_operators,
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cairo_output_stream_t *stream,
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cairo_matrix_t *cairo_to_pdf,
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cairo_scaled_font_subsets_t *font_subsets);
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cairo_private cairo_status_t
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_cairo_pdf_operators_fini (cairo_pdf_operators_t *pdf_operators);
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cairo_private void
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_cairo_pdf_operators_set_font_subsets_callback (cairo_pdf_operators_t *pdf_operators,
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cairo_pdf_operators_use_font_subset_t use_font_subset,
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void *closure);
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cairo_private void
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_cairo_pdf_operators_set_stream (cairo_pdf_operators_t *pdf_operators,
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cairo_output_stream_t *stream);
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cairo_private void
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_cairo_pdf_operators_set_cairo_to_pdf_matrix (cairo_pdf_operators_t *pdf_operators,
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cairo_matrix_t *cairo_to_pdf);
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cairo_private void
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_cairo_pdf_operators_enable_actual_text (cairo_pdf_operators_t *pdf_operators,
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cairo_bool_t enable);
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cairo_private cairo_status_t
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_cairo_pdf_operators_flush (cairo_pdf_operators_t *pdf_operators);
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cairo_private void
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_cairo_pdf_operators_reset (cairo_pdf_operators_t *pdf_operators);
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cairo_private cairo_int_status_t
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_cairo_pdf_operators_clip (cairo_pdf_operators_t *pdf_operators,
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const cairo_path_fixed_t *path,
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cairo_fill_rule_t fill_rule);
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cairo_private cairo_int_status_t
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_cairo_pdf_operators_emit_stroke_style (cairo_pdf_operators_t *pdf_operators,
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const cairo_stroke_style_t *style,
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double scale);
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cairo_private cairo_int_status_t
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_cairo_pdf_operators_stroke (cairo_pdf_operators_t *pdf_operators,
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const cairo_path_fixed_t *path,
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const cairo_stroke_style_t *style,
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const cairo_matrix_t *ctm,
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const cairo_matrix_t *ctm_inverse);
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cairo_private cairo_int_status_t
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_cairo_pdf_operators_fill (cairo_pdf_operators_t *pdf_operators,
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const cairo_path_fixed_t *path,
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cairo_fill_rule_t fill_rule);
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cairo_private cairo_int_status_t
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_cairo_pdf_operators_fill_stroke (cairo_pdf_operators_t *pdf_operators,
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const cairo_path_fixed_t *path,
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cairo_fill_rule_t fill_rule,
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const cairo_stroke_style_t *style,
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const cairo_matrix_t *ctm,
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const cairo_matrix_t *ctm_inverse);
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cairo_private cairo_int_status_t
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_cairo_pdf_operators_show_text_glyphs (cairo_pdf_operators_t *pdf_operators,
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const char *utf8,
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int utf8_len,
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cairo_glyph_t *glyphs,
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int num_glyphs,
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const cairo_text_cluster_t *clusters,
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int num_clusters,
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cairo_text_cluster_flags_t cluster_flags,
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cairo_scaled_font_t *scaled_font);
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#endif /* CAIRO_PDF_OPERATORS_H */
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