2 Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
4 This file is part of libdcp.
6 libdcp is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 libdcp is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with libdcp. If not, see <http://www.gnu.org/licenses/>.
19 In addition, as a special exception, the copyright holders give
20 permission to link the code of portions of this program with the
21 OpenSSL library under certain conditions as described in each
22 individual source file, and distribute linked combinations
25 You must obey the GNU General Public License in all respects
26 for all of the code used other than OpenSSL. If you modify
27 file(s) with this exception, you may extend this exception to your
28 version of the file(s), but you are not obligated to do so. If you
29 do not wish to do so, delete this exception statement from your
30 version. If you delete this exception statement from all source
31 files in the program, then also delete it here.
34 #include "raw_convert.h"
36 #include "exceptions.h"
37 #include "compose.hpp"
38 #include <boost/algorithm/string.hpp>
45 using namespace boost;
47 bool dcp::operator== (dcp::Size const & a, dcp::Size const & b)
49 return (a.width == b.width && a.height == b.height);
52 bool dcp::operator!= (dcp::Size const & a, dcp::Size const & b)
57 ostream& dcp::operator<< (ostream& s, dcp::Size const & a)
59 s << a.width << "x" << a.height;
63 /** Construct a Fraction from a string of the form <numerator> <denominator>
66 Fraction::Fraction (string s)
69 split (b, s, is_any_of (" "));
71 boost::throw_exception (XMLError ("malformed fraction " + s + " in XML node"));
73 numerator = raw_convert<int> (b[0]);
74 denominator = raw_convert<int> (b[1]);
78 Fraction::as_string () const
80 return String::compose ("%1 %2", numerator, denominator);
84 dcp::operator== (Fraction const & a, Fraction const & b)
86 return (a.numerator == b.numerator && a.denominator == b.denominator);
90 dcp::operator!= (Fraction const & a, Fraction const & b)
92 return (a.numerator != b.numerator || a.denominator != b.denominator);
96 dcp::operator<< (ostream& s, Fraction const & f)
98 s << f.numerator << "/" << f.denominator;
102 /** Construct a Colour, initialising it to black. */
111 /** Construct a Colour from R, G and B. The values run between
114 Colour::Colour (int r_, int g_, int b_)
122 /** Construct a Colour from an ARGB hex string; the alpha value is ignored.
123 * @param argb_hex A string of the form AARRGGBB, where e.g. RR is a two-character
126 Colour::Colour (string argb_hex)
129 if (sscanf (argb_hex.c_str(), "%2x%2x%2x%2x", &alpha, &r, &g, &b) != 4) {
130 boost::throw_exception (XMLError ("could not parse colour string"));
134 /** @return An ARGB string of the form AARRGGBB, where e.g. RR is a two-character
135 * hex value. The alpha value will always be FF (ie 255; maximum alpha).
138 Colour::to_argb_string () const
141 snprintf (buffer, sizeof(buffer), "FF%02X%02X%02X", r, g, b);
145 /** @return An RGB string of the form RRGGBB, where e.g. RR is a two-character
149 Colour::to_rgb_string () const
152 snprintf (buffer, sizeof(buffer), "%02X%02X%02X", r, g, b);
156 /** operator== for Colours.
157 * @param a First colour to compare.
158 * @param b Second colour to compare.
161 dcp::operator== (Colour const & a, Colour const & b)
163 return (a.r == b.r && a.g == b.g && a.b == b.b);
166 /** operator!= for Colours.
167 * @param a First colour to compare.
168 * @param b Second colour to compare.
171 dcp::operator!= (Colour const & a, Colour const & b)
177 dcp::operator<< (ostream& s, Colour const & c)
179 s << "(" << c.r << ", " << c.g << ", " << c.b << ")";
184 dcp::effect_to_string (Effect e)
195 boost::throw_exception (MiscError ("unknown effect type"));
199 dcp::string_to_effect (string s)
203 } else if (s == "border") {
205 } else if (s == "shadow") {
209 boost::throw_exception (DCPReadError ("unknown subtitle effect type"));
213 dcp::halign_to_string (HAlign h)
224 boost::throw_exception (MiscError ("unknown subtitle halign type"));
228 dcp::string_to_halign (string s)
232 } else if (s == "center") {
233 return HALIGN_CENTER;
234 } else if (s == "right") {
238 boost::throw_exception (DCPReadError ("unknown subtitle halign type"));
242 dcp::valign_to_string (VAlign v)
253 boost::throw_exception (MiscError ("unknown subtitle valign type"));
257 dcp::string_to_valign (string s)
261 } else if (s == "center") {
262 return VALIGN_CENTER;
263 } else if (s == "bottom") {
264 return VALIGN_BOTTOM;
267 boost::throw_exception (DCPReadError ("unknown subtitle valign type"));
271 dcp::direction_to_string (Direction v)
284 boost::throw_exception (MiscError ("unknown subtitle direction type"));
288 dcp::string_to_direction (string s)
290 if (s == "ltr" || s == "horizontal") {
291 return DIRECTION_LTR;
292 } else if (s == "rtl") {
293 return DIRECTION_RTL;
294 } else if (s == "ttb" || s == "vertical") {
295 return DIRECTION_TTB;
296 } else if (s == "btt") {
297 return DIRECTION_BTT;
300 boost::throw_exception (DCPReadError ("unknown subtitle direction type"));