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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 "raw_convert.h"
#include "types.h"
#include "exceptions.h"
#include "compose.hpp"
#include <boost/algorithm/string.hpp>
#include <vector>
#include <cstdio>
#include <iomanip>
using namespace std;
using namespace dcp;
using namespace boost;
/** Construct a Fraction from a string of the form <numerator> <denominator>
* e.g. "1 3".
*/
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]);
}
string
Fraction::as_string () const
{
return String::compose ("%1 %2", numerator, denominator);
}
bool
dcp::operator== (Fraction const & a, Fraction const & b)
{
return (a.numerator == b.numerator && a.denominator == b.denominator);
}
bool
dcp::operator!= (Fraction const & a, Fraction const & b)
{
return (a.numerator != b.numerator || a.denominator != b.denominator);
}
ostream&
dcp::operator<< (ostream& s, Fraction const & f)
{
s << f.numerator << "/" << f.denominator;
return s;
}
/** Construct a Colour, initialising it to black. */
Colour::Colour ()
: r (0)
, g (0)
, b (0)
{
}
/** Construct a Colour from R, G and B. The values run between
* 0 and 255.
*/
Colour::Colour (int r_, int g_, int b_)
: r (r_)
, g (g_)
, b (b_)
{
}
/** Construct a Colour 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.
*/
Colour::Colour (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
Colour::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 Colours.
* @param a First colour to compare.
* @param b Second colour to compare.
*/
bool
dcp::operator== (Colour const & a, Colour const & b)
{
return (a.r == b.r && a.g == b.g && a.b == b.b);
}
/** operator!= for Colours.
* @param a First colour to compare.
* @param b Second colour to compare.
*/
bool
dcp::operator!= (Colour const & a, Colour const & b)
{
return !(a == b);
}
ostream &
dcp::operator<< (ostream& s, Colour const & c)
{
s << "(" << c.r << ", " << c.g << ", " << c.b << ")";
return s;
}
string
dcp::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
dcp::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
dcp::halign_to_string (HAlign h)
{
switch (h) {
case HALIGN_LEFT:
return "left";
case HALIGN_CENTER:
return "center";
case HALIGN_RIGHT:
return "right";
}
boost::throw_exception (MiscError ("unknown subtitle halign type"));
}
HAlign
dcp::string_to_halign (string s)
{
if (s == "left") {
return HALIGN_LEFT;
} else if (s == "center") {
return HALIGN_CENTER;
} else if (s == "right") {
return HALIGN_RIGHT;
}
boost::throw_exception (DCPReadError ("unknown subtitle halign type"));
}
string
dcp::valign_to_string (VAlign v)
{
switch (v) {
case VALIGN_TOP:
return "top";
case VALIGN_CENTER:
return "center";
case VALIGN_BOTTOM:
return "bottom";
}
boost::throw_exception (MiscError ("unknown subtitle valign type"));
}
VAlign
dcp::string_to_valign (string s)
{
if (s == "top") {
return VALIGN_TOP;
} else if (s == "center") {
return VALIGN_CENTER;
} else if (s == "bottom") {
return VALIGN_BOTTOM;
}
boost::throw_exception (DCPReadError ("unknown subtitle valign type"));
}
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