src/cairo-pdf-surface-private.h

   1 /* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
   2 /* cairo - a vector graphics library with display and print output
   3  *
   4  * Copyright © 2004 Red Hat, Inc
   5  * Copyright © 2006 Red Hat, Inc
   6  * Copyright © 2007, 2008 Adrian Johnson
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it either under the terms of the GNU Lesser General Public
  10  * License version 2.1 as published by the Free Software Foundation
  11  * (the "LGPL") or, at your option, under the terms of the Mozilla
  12  * Public License Version 1.1 (the "MPL"). If you do not alter this
  13  * notice, a recipient may use your version of this file under either
  14  * the MPL or the LGPL.
  15  *
  16  * You should have received a copy of the LGPL along with this library
  17  * in the file COPYING-LGPL-2.1; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19  * You should have received a copy of the MPL along with this library
  20  * in the file COPYING-MPL-1.1
  21  *
  22  * The contents of this file are subject to the Mozilla Public License
  23  * Version 1.1 (the "License"); you may not use this file except in
  24  * compliance with the License. You may obtain a copy of the License at
  25  * http://www.mozilla.org/MPL/
  26  *
  27  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
  28  * OF ANY KIND, either express or implied. See the LGPL or the MPL for
  29  * the specific language governing rights and limitations.
  30  *
  31  * The Original Code is the cairo graphics library.
  32  *
  33  * The Initial Developer of the Original Code is University of Southern
  34  * California.
  35  *
  36  * Contributor(s):
  37  *      Kristian Høgsberg <krh@redhat.com>
  38  *      Carl Worth <cworth@cworth.org>
  39  *      Adrian Johnson <ajohnson@redneon.com>
  40  */
  41
  42 #ifndef CAIRO_PDF_SURFACE_PRIVATE_H
  43 #define CAIRO_PDF_SURFACE_PRIVATE_H
  44
  45 #include "cairo-pdf.h"
  46
  47 #include "cairo-surface-private.h"
  48 #include "cairo-pdf-operators-private.h"
  49 #include "cairo-path-fixed-private.h"
  50
  51 typedef struct _cairo_pdf_resource {
  52     unsigned int id;
  53 } cairo_pdf_resource_t;
  54
  55 typedef struct _cairo_pdf_group_resources {
  56     cairo_array_t alphas;
  57     cairo_array_t smasks;
  58     cairo_array_t patterns;
  59     cairo_array_t xobjects;
  60     cairo_array_t fonts;
  61 } cairo_pdf_group_resources_t;
  62
  63 typedef struct _cairo_pdf_source_surface_entry {
  64     cairo_hash_entry_t base;
  65     unsigned int id;
  66     cairo_bool_t interpolate;
  67     cairo_pdf_resource_t surface_res;
  68     int width;
  69     int height;
  70 } cairo_pdf_source_surface_entry_t;
  71
  72 typedef struct _cairo_pdf_source_surface {
  73     cairo_surface_t *surface;
  74     cairo_pdf_source_surface_entry_t *hash_entry;
  75 } cairo_pdf_source_surface_t;
  76
  77 typedef struct _cairo_pdf_pattern {
  78     double width;
  79     double height;
  80     cairo_rectangle_int_t extents;
  81     cairo_pattern_t *pattern;
  82     cairo_pdf_resource_t pattern_res;
  83     cairo_pdf_resource_t gstate_res;
  84 } cairo_pdf_pattern_t;
  85
  86 typedef enum _cairo_pdf_operation {
  87     PDF_PAINT,
  88     PDF_MASK,
  89     PDF_FILL,
  90     PDF_STROKE,
  91     PDF_SHOW_GLYPHS
  92 } cairo_pdf_operation_t;
  93
  94 typedef struct _cairo_pdf_smask_group
  95 {
  96     double                width;
  97     double                height;
  98     cairo_pdf_resource_t  group_res;
  99     cairo_pdf_operation_t operation;
 100     cairo_pattern_t      *source;
 101     cairo_pdf_resource_t  source_res;
 102     cairo_pattern_t      *mask;
 103     cairo_path_fixed_t    path;
 104     cairo_fill_rule_t     fill_rule;
 105     cairo_stroke_style_t *style;
 106     cairo_matrix_t        ctm;
 107     cairo_matrix_t        ctm_inverse;
 108     char                 *utf8;
 109     int                   utf8_len;
 110     cairo_glyph_t        *glyphs;
 111     int                   num_glyphs;
 112     cairo_text_cluster_t *clusters;
 113     int                   num_clusters;
 114     cairo_bool_t          cluster_flags;
 115     cairo_scaled_font_t  *scaled_font;
 116 } cairo_pdf_smask_group_t;
 117
 118 typedef struct _cairo_pdf_surface cairo_pdf_surface_t;
 119
 120 struct _cairo_pdf_surface {
 121     cairo_surface_t base;
 122
 123     /* Prefer the name "output" here to avoid confusion over the
 124      * structure within a PDF document known as a "stream". */
 125     cairo_output_stream_t *output;
 126
 127     double width;
 128     double height;
 129     cairo_matrix_t cairo_to_pdf;
 130
 131     cairo_array_t objects;
 132     cairo_array_t pages;
 133     cairo_array_t rgb_linear_functions;
 134     cairo_array_t alpha_linear_functions;
 135     cairo_array_t page_patterns;
 136     cairo_array_t page_surfaces;
 137     cairo_hash_table_t *all_surfaces;
 138     cairo_array_t smask_groups;
 139     cairo_array_t knockout_group;
 140
 141     cairo_scaled_font_subsets_t *font_subsets;
 142     cairo_array_t fonts;
 143
 144     cairo_pdf_resource_t next_available_resource;
 145     cairo_pdf_resource_t pages_resource;
 146
 147     cairo_pdf_version_t pdf_version;
 148     cairo_bool_t compress_content;
 149
 150     cairo_pdf_resource_t content;
 151     cairo_pdf_resource_t content_resources;
 152     cairo_pdf_group_resources_t resources;
 153     cairo_bool_t has_fallback_images;
 154     cairo_bool_t header_emitted;
 155
 156     struct {
 157         cairo_bool_t active;
 158         cairo_pdf_resource_t self;
 159         cairo_pdf_resource_t length;
 160         long start_offset;
 161         cairo_bool_t compressed;
 162         cairo_output_stream_t *old_output;
 163     } pdf_stream;
 164
 165     struct {
 166         cairo_bool_t active;
 167         cairo_output_stream_t *stream;
 168         cairo_output_stream_t *mem_stream;
 169         cairo_output_stream_t *old_output;
 170         cairo_pdf_resource_t   resource;
 171         cairo_bool_t is_knockout;
 172     } group_stream;
 173
 174     cairo_pdf_operators_t pdf_operators;
 175     cairo_paginated_mode_t paginated_mode;
 176     cairo_bool_t select_pattern_gstate_saved;
 177
 178     cairo_bool_t force_fallbacks;
 179
 180     cairo_bool_t current_pattern_is_solid_color;
 181     cairo_bool_t current_color_is_stroke;
 182     double current_color_red;
 183     double current_color_green;
 184     double current_color_blue;
 185     double current_color_alpha;
 186
 187     cairo_surface_t *paginated_surface;
 188 };
 189
 190 #endif /* CAIRO_PDF_SURFACE_PRIVATE_H */