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comparison mupdf-source/thirdparty/harfbuzz/util/view-options.hh @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 /*
2 * Copyright © 2011 Google, Inc.
3 *
4 * This is part of HarfBuzz, a text shaping library.
5 *
6 * Permission is hereby granted, without written agreement and without
7 * license or royalty fees, to use, copy, modify, and distribute this
8 * software and its documentation for any purpose, provided that the
9 * above copyright notice and the following two paragraphs appear in
10 * all copies of this software.
11 *
12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
16 * DAMAGE.
17 *
18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
23 *
24 * Google Author(s): Behdad Esfahbod
25 */
26
27 #ifndef VIEW_OPTIONS_HH
28 #define VIEW_OPTIONS_HH
29
30 #include "options.hh"
31
32 #define DEFAULT_MARGIN 16
33 #define DEFAULT_FORE "#000000"
34 #define DEFAULT_BACK "#FFFFFF"
35
36 struct view_options_t
37 {
38 ~view_options_t ()
39 {
40 g_free (fore);
41 g_free (back);
42 }
43
44 void add_options (option_parser_t *parser);
45
46 hb_bool_t annotate = false;
47 char *fore = nullptr;
48 char *back = nullptr;
49 double line_space = 0;
50 bool have_font_extents = false;
51 struct font_extents_t {
52 double ascent, descent, line_gap;
53 } font_extents = {0., 0., 0.};
54 struct margin_t {
55 double t, r, b, l;
56 } margin = {DEFAULT_MARGIN, DEFAULT_MARGIN, DEFAULT_MARGIN, DEFAULT_MARGIN};
57 };
58
59
60 static gboolean
61 parse_font_extents (const char *name G_GNUC_UNUSED,
62 const char *arg,
63 gpointer data,
64 GError **error G_GNUC_UNUSED)
65 {
66 view_options_t *view_opts = (view_options_t *) data;
67 view_options_t::font_extents_t &e = view_opts->font_extents;
68 switch (sscanf (arg, "%lf%*[ ,]%lf%*[ ,]%lf", &e.ascent, &e.descent, &e.line_gap)) {
69 case 1: HB_FALLTHROUGH;
70 case 2: HB_FALLTHROUGH;
71 case 3:
72 view_opts->have_font_extents = true;
73 return true;
74 default:
75 g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
76 "%s argument should be one to three space-separated numbers",
77 name);
78 return false;
79 }
80 }
81
82 static gboolean
83 parse_margin (const char *name G_GNUC_UNUSED,
84 const char *arg,
85 gpointer data,
86 GError **error G_GNUC_UNUSED)
87 {
88 view_options_t *view_opts = (view_options_t *) data;
89 view_options_t::margin_t &m = view_opts->margin;
90 switch (sscanf (arg, "%lf%*[ ,]%lf%*[ ,]%lf%*[ ,]%lf", &m.t, &m.r, &m.b, &m.l)) {
91 case 1: m.r = m.t; HB_FALLTHROUGH;
92 case 2: m.b = m.t; HB_FALLTHROUGH;
93 case 3: m.l = m.r; HB_FALLTHROUGH;
94 case 4: return true;
95 default:
96 g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
97 "%s argument should be one to four space-separated numbers",
98 name);
99 return false;
100 }
101 }
102
103 void
104 view_options_t::add_options (option_parser_t *parser)
105 {
106 GOptionEntry entries[] =
107 {
108 {"annotate", 0, 0, G_OPTION_ARG_NONE, &this->annotate, "Annotate output rendering", nullptr},
109 {"background", 0, 0, G_OPTION_ARG_STRING, &this->back, "Set background color (default: " DEFAULT_BACK ")", "rrggbb/rrggbbaa"},
110 {"foreground", 0, 0, G_OPTION_ARG_STRING, &this->fore, "Set foreground color (default: " DEFAULT_FORE ")", "rrggbb/rrggbbaa"},
111 {"line-space", 0, 0, G_OPTION_ARG_DOUBLE, &this->line_space, "Set space between lines (default: 0)", "units"},
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"},
113 {"margin", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_margin, "Margin around output (default: " G_STRINGIFY(DEFAULT_MARGIN) ")","one to four numbers"},
114 {nullptr}
115 };
116 parser->add_group (entries,
117 "view",
118 "View options:",
119 "Options for output rendering",
120 this);
121 }
122
123 #endif