Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/include/mupdf/pdf/font.h @ 42:4621bd954a09

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FIX: Need packaging at runtime to because of the parsing of mupdf_version into a tuple. In the merge it was removed erroneously.
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 17:14:12 +0200
parents b50eed0cc0ef
children
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2
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1 // Copyright (C) 2004-2025 Artifex Software, Inc.
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2 //
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3 // This file is part of MuPDF.
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4 //
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5 // MuPDF is free software: you can redistribute it and/or modify it under the
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6 // terms of the GNU Affero General Public License as published by the Free
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7 // Software Foundation, either version 3 of the License, or (at your option)
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8 // any later version.
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9 //
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10 // MuPDF is distributed in the hope that it will be useful, but WITHOUT ANY
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11 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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12 // FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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13 // details.
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14 //
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15 // You should have received a copy of the GNU Affero General Public License
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16 // along with MuPDF. If not, see <https://www.gnu.org/licenses/agpl-3.0.en.html>
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17 //
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18 // Alternative licensing terms are available from the licensor.
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19 // For commercial licensing, see <https://www.artifex.com/> or contact
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20 // Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
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21 // CA 94129, USA, for further information.
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22
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23 #ifndef MUPDF_PDF_FONT_H
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24 #define MUPDF_PDF_FONT_H
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26 #include "mupdf/pdf/cmap.h"
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27 #include "mupdf/fitz/device.h"
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28 #include "mupdf/fitz/font.h"
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29
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30 enum
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31 {
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32 PDF_FD_FIXED_PITCH = 1 << 0,
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33 PDF_FD_SERIF = 1 << 1,
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34 PDF_FD_SYMBOLIC = 1 << 2,
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35 PDF_FD_SCRIPT = 1 << 3,
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36 PDF_FD_NONSYMBOLIC = 1 << 5,
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37 PDF_FD_ITALIC = 1 << 6,
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38 PDF_FD_ALL_CAP = 1 << 16,
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39 PDF_FD_SMALL_CAP = 1 << 17,
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40 PDF_FD_FORCE_BOLD = 1 << 18
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41 };
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42
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43 void pdf_load_encoding(const char **estrings, const char *encoding);
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44
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45 typedef struct
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46 {
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47 unsigned short lo;
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48 unsigned short hi;
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49 int w; /* type3 fonts can be big! */
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50 } pdf_hmtx;
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51
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52 typedef struct
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53 {
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54 unsigned short lo;
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55 unsigned short hi;
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56 short x;
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57 short y;
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58 short w;
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59 } pdf_vmtx;
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60
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61 typedef struct
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62 {
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63 fz_storable storable;
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64 size_t size;
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65
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66 fz_font *font;
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67
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68 /* FontDescriptor */
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69 int flags;
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70 float italic_angle;
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71 float ascent;
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72 float descent;
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73 float cap_height;
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74 float x_height;
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75 float missing_width;
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76
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77 /* Encoding (CMap) */
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78 pdf_cmap *encoding;
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79 pdf_cmap *to_ttf_cmap;
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80 size_t cid_to_gid_len;
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81 unsigned short *cid_to_gid;
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82
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83 /* ToUnicode */
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84 pdf_cmap *to_unicode;
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85 size_t cid_to_ucs_len;
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86 unsigned short *cid_to_ucs;
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87
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88 /* Metrics (given in the PDF file) */
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89 int wmode;
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91 int hmtx_len, hmtx_cap;
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92 pdf_hmtx dhmtx;
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93 pdf_hmtx *hmtx;
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94
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95 int vmtx_len, vmtx_cap;
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96 pdf_vmtx dvmtx;
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97 pdf_vmtx *vmtx;
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98
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99 int is_embedded;
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100 int t3loading;
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101 } pdf_font_desc;
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102
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103 void pdf_set_font_wmode(fz_context *ctx, pdf_font_desc *font, int wmode);
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104 void pdf_set_default_hmtx(fz_context *ctx, pdf_font_desc *font, int w);
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105 void pdf_set_default_vmtx(fz_context *ctx, pdf_font_desc *font, int y, int w);
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106 void pdf_add_hmtx(fz_context *ctx, pdf_font_desc *font, int lo, int hi, int w);
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107 void pdf_add_vmtx(fz_context *ctx, pdf_font_desc *font, int lo, int hi, int x, int y, int w);
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108 void pdf_end_hmtx(fz_context *ctx, pdf_font_desc *font);
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109 void pdf_end_vmtx(fz_context *ctx, pdf_font_desc *font);
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110 pdf_hmtx pdf_lookup_hmtx(fz_context *ctx, pdf_font_desc *font, int cid);
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111 pdf_vmtx pdf_lookup_vmtx(fz_context *ctx, pdf_font_desc *font, int cid);
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112
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113 void pdf_load_to_unicode(fz_context *ctx, pdf_document *doc, pdf_font_desc *font, const char **strings, char *collection, pdf_obj *cmapstm);
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114
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115 int pdf_font_cid_to_gid(fz_context *ctx, pdf_font_desc *fontdesc, int cid);
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116 const char *pdf_clean_font_name(const char *fontname);
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117
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118 const unsigned char *pdf_lookup_substitute_font(fz_context *ctx, int mono, int serif, int bold, int italic, int *len);
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119
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120 pdf_font_desc *pdf_load_type3_font(fz_context *ctx, pdf_document *doc, pdf_obj *rdb, pdf_obj *obj);
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121 void pdf_load_type3_glyphs(fz_context *ctx, pdf_document *doc, pdf_font_desc *fontdesc);
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122 pdf_font_desc *pdf_load_font(fz_context *ctx, pdf_document *doc, pdf_obj *rdb, pdf_obj *obj);
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123 pdf_font_desc *pdf_load_hail_mary_font(fz_context *ctx, pdf_document *doc);
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124
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125 pdf_font_desc *pdf_new_font_desc(fz_context *ctx);
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126 pdf_font_desc *pdf_keep_font(fz_context *ctx, pdf_font_desc *fontdesc);
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127 void pdf_drop_font(fz_context *ctx, pdf_font_desc *font);
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128
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129 void pdf_print_font(fz_context *ctx, fz_output *out, pdf_font_desc *fontdesc);
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130
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131 void pdf_run_glyph(fz_context *ctx, pdf_document *doc, pdf_obj *resources, fz_buffer *contents, fz_device *dev, fz_matrix ctm, void *gstate, fz_default_colorspaces *default_cs, void *fill_gstate, void *stroke_gstate);
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132
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133 pdf_obj *pdf_add_simple_font(fz_context *ctx, pdf_document *doc, fz_font *font, int encoding);
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134
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135 /*
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136 Creates CID font with Identity-H CMap and a ToUnicode CMap that
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137 is created by using the TTF cmap table "backwards" to go from
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138 the GID to a Unicode value.
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139
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140 We can possibly get width information that may have been embedded
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141 in the PDF /W array (or W2 if vertical text)
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142 */
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143 pdf_obj *pdf_add_cid_font(fz_context *ctx, pdf_document *doc, fz_font *font);
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144
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145 /*
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146 Add a non-embedded UTF16-encoded CID-font for the CJK scripts:
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147 CNS1, GB1, Japan1, or Korea1
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148 */
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149 pdf_obj *pdf_add_cjk_font(fz_context *ctx, pdf_document *doc, fz_font *font, int script, int wmode, int serif);
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150
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151 /*
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152 Add a substitute font for any script.
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153 */
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154 pdf_obj *pdf_add_substitute_font(fz_context *ctx, pdf_document *doc, fz_font *font);
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155
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156 int pdf_font_writing_supported(fz_context *ctx, fz_font *font);
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157
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158 /*
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159 Subset fonts by scanning the document to establish usage, and then
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160 rewriting the font files.
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161
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162 Calling with pages_len == 0 means do the whole document.
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163
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164 EXPERIMENTAL AND SUBJECT TO CHANGE.
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165 */
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166 void pdf_subset_fonts(fz_context *ctx, pdf_document *doc, int pages_len, const int *pages);
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167
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168 #endif