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/*
Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <vector>
#include <cstdio>
#include <iomanip>
#include <boost/lexical_cast.hpp>
#include <boost/algorithm/string.hpp>
#include "types.h"
#include "exceptions.h"
#include "raw_convert.h"
using namespace std;
using namespace libdcp;
using namespace boost;
Fraction::Fraction (string s)
{
vector<string> b;
split (b, s, is_any_of (" "));
if (b.size() != 2) {
boost::throw_exception (XMLError ("malformed fraction " + s + " in XML node"));
}
numerator = raw_convert<int> (b[0]);
denominator = raw_convert<int> (b[1]);
}
bool
libdcp::operator== (Fraction const & a, Fraction const & b)
{
return (a.numerator == b.numerator && a.denominator == b.denominator);
}
bool
libdcp::operator!= (Fraction const & a, Fraction const & b)
{
return (a.numerator != b.numerator || a.denominator != b.denominator);
}
Color::Color ()
: r (0)
, g (0)
, b (0)
{
}
Color::Color (int r_, int g_, int b_)
: r (r_)
, g (g_)
, b (b_)
{
}
/** Construct a Color from an ARGB hex string; the alpha value is ignored.
* @param argb_hex A string of the form AARRGGBB, where e.g. RR is a two-character
* hex value.
*/
Color::Color (string argb_hex)
{
int alpha;
if (sscanf (argb_hex.c_str(), "%2x%2x%2x%2x", &alpha, &r, &g, &b) < 4) {
boost::throw_exception (XMLError ("could not parse colour string"));
}
}
/** @return An ARGB string of the form AARRGGBB, where e.g. RR is a two-character
* hex value. The alpha value will always be FF (ie 255; maximum alpha).
*/
string
Color::to_argb_string () const
{
stringstream s;
s << "FF";
s << hex
<< setw(2) << setfill('0') << r
<< setw(2) << setfill('0') << g
<< setw(2) << setfill('0') << b;
string t = s.str();
to_upper (t);
return t;
}
/** operator== for Colors.
* @param a First color to compare.
* @param b Second color to compare.
*/
bool
libdcp::operator== (Color const & a, Color const & b)
{
return (a.r == b.r && a.g == b.g && a.b == b.b);
}
/** operator!= for Colors.
* @param a First color to compare.
* @param b Second color to compare.
*/
bool
libdcp::operator!= (Color const & a, Color const & b)
{
return !(a == b);
}
ostream &
libdcp::operator<< (ostream& s, Color const & c)
{
s << "(" << c.r << ", " << c.g << ", " << c.b << ")";
return s;
}
string
libdcp::effect_to_string (Effect e)
{
switch (e) {
case NONE:
return "none";
case BORDER:
return "border";
case SHADOW:
return "shadow";
}
boost::throw_exception (MiscError ("unknown effect type"));
}
Effect
libdcp::string_to_effect (string s)
{
if (s == "none") {
return NONE;
} else if (s == "border") {
return BORDER;
} else if (s == "shadow") {
return SHADOW;
}
boost::throw_exception (DCPReadError ("unknown subtitle effect type"));
}
string
libdcp::valign_to_string (VAlign v)
{
switch (v) {
case VERTICAL_TOP:
return "top";
case VERTICAL_CENTER:
return "center";
case VERTICAL_BOTTOM:
return "bottom";
}
boost::throw_exception (MiscError ("unknown valign type"));
}
VAlign
libdcp::string_to_valign (string s)
{
if (s == "top") {
return VERTICAL_TOP;
} else if (s == "center") {
return VERTICAL_CENTER;
} else if (s == "bottom") {
return VERTICAL_BOTTOM;
}
boost::throw_exception (DCPReadError ("unknown subtitle valign type"));
}
string
libdcp::halign_to_string (HAlign h)
{
switch (h) {
case HORIZONTAL_LEFT:
return "left";
case HORIZONTAL_CENTER:
return "center";
case HORIZONTAL_RIGHT:
return "right";
}
boost::throw_exception (MiscError ("unknown halign type"));
}
HAlign
libdcp::string_to_halign (string s)
{
if (s == "left") {
return HORIZONTAL_LEFT;
} else if (s == "center") {
return HORIZONTAL_CENTER;
} else if (s == "right") {
return HORIZONTAL_RIGHT;
}
boost::throw_exception (DCPReadError ("unknown subtitle halign type"));
}
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