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cairo-pdf-operators-private.h
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/* -*- 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 <[email protected]>
* Carl Worth <[email protected]>
* Adrian Johnson <[email protected]>
*/
#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_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 */