Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/harfbuzz/util/view-options.hh @ 21:2f43e400f144

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Provide an "all" target to build both the sdist and the wheel
author Franz Glasner <fzglas.hg@dom66.de>
date Fri, 19 Sep 2025 10:28:53 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2
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1 /*
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2 * Copyright © 2011 Google, Inc.
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3 *
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4 * This is part of HarfBuzz, a text shaping library.
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5 *
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6 * Permission is hereby granted, without written agreement and without
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7 * license or royalty fees, to use, copy, modify, and distribute this
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8 * software and its documentation for any purpose, provided that the
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9 * above copyright notice and the following two paragraphs appear in
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10 * all copies of this software.
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11 *
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12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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16 * DAMAGE.
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17 *
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18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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23 *
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24 * Google Author(s): Behdad Esfahbod
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25 */
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26
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27 #ifndef VIEW_OPTIONS_HH
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28 #define VIEW_OPTIONS_HH
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29
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30 #include "options.hh"
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31
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32 #define DEFAULT_MARGIN 16
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33 #define DEFAULT_FORE "#000000"
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34 #define DEFAULT_BACK "#FFFFFF"
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35
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36 struct view_options_t
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37 {
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38 ~view_options_t ()
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39 {
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40 g_free (fore);
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41 g_free (back);
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42 }
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43
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44 void add_options (option_parser_t *parser);
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45
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46 hb_bool_t annotate = false;
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47 char *fore = nullptr;
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48 char *back = nullptr;
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49 double line_space = 0;
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50 bool have_font_extents = false;
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51 struct font_extents_t {
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52 double ascent, descent, line_gap;
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53 } font_extents = {0., 0., 0.};
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54 struct margin_t {
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55 double t, r, b, l;
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56 } margin = {DEFAULT_MARGIN, DEFAULT_MARGIN, DEFAULT_MARGIN, DEFAULT_MARGIN};
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57 };
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58
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59
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60 static gboolean
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61 parse_font_extents (const char *name G_GNUC_UNUSED,
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62 const char *arg,
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63 gpointer data,
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64 GError **error G_GNUC_UNUSED)
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65 {
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66 view_options_t *view_opts = (view_options_t *) data;
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67 view_options_t::font_extents_t &e = view_opts->font_extents;
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68 switch (sscanf (arg, "%lf%*[ ,]%lf%*[ ,]%lf", &e.ascent, &e.descent, &e.line_gap)) {
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69 case 1: HB_FALLTHROUGH;
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70 case 2: HB_FALLTHROUGH;
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71 case 3:
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72 view_opts->have_font_extents = true;
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73 return true;
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74 default:
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75 g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
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76 "%s argument should be one to three space-separated numbers",
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77 name);
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78 return false;
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79 }
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80 }
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81
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82 static gboolean
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83 parse_margin (const char *name G_GNUC_UNUSED,
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84 const char *arg,
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85 gpointer data,
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86 GError **error G_GNUC_UNUSED)
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87 {
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88 view_options_t *view_opts = (view_options_t *) data;
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89 view_options_t::margin_t &m = view_opts->margin;
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90 switch (sscanf (arg, "%lf%*[ ,]%lf%*[ ,]%lf%*[ ,]%lf", &m.t, &m.r, &m.b, &m.l)) {
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91 case 1: m.r = m.t; HB_FALLTHROUGH;
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92 case 2: m.b = m.t; HB_FALLTHROUGH;
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93 case 3: m.l = m.r; HB_FALLTHROUGH;
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94 case 4: return true;
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95 default:
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96 g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
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97 "%s argument should be one to four space-separated numbers",
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98 name);
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99 return false;
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100 }
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101 }
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102
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103 void
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104 view_options_t::add_options (option_parser_t *parser)
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105 {
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106 GOptionEntry entries[] =
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107 {
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108 {"annotate", 0, 0, G_OPTION_ARG_NONE, &this->annotate, "Annotate output rendering", nullptr},
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109 {"background", 0, 0, G_OPTION_ARG_STRING, &this->back, "Set background color (default: " DEFAULT_BACK ")", "rrggbb/rrggbbaa"},
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110 {"foreground", 0, 0, G_OPTION_ARG_STRING, &this->fore, "Set foreground color (default: " DEFAULT_FORE ")", "rrggbb/rrggbbaa"},
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111 {"line-space", 0, 0, G_OPTION_ARG_DOUBLE, &this->line_space, "Set space between lines (default: 0)", "units"},
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112 {"font-extents", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_font_extents, "Set font ascent/descent/line-gap (default: auto)","one to three numbers"},
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113 {"margin", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_margin, "Margin around output (default: " G_STRINGIFY(DEFAULT_MARGIN) ")","one to four numbers"},
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114 {nullptr}
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115 };
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116 parser->add_group (entries,
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117 "view",
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118 "View options:",
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119 "Options for output rendering",
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120 this);
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121 }
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122
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123 #endif