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/*
Copyright (C) 2014-2018 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic 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.
DCP-o-matic 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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "dcpomatic_time.h"
#include "position_image.h"
#include "rect.h"
#include "string_text.h"
#include <dcp/util.h>
#include <memory>
namespace dcpomatic {
class Font;
}
std::string marked_up(std::vector<StringText> subtitles, int target_height, float fade_factor, std::string font_name);
std::vector<PositionImage> render_text(std::vector<StringText>, dcp::Size, dcpomatic::DCPTime, int);
std::vector<dcpomatic::Rect<int>> bounding_box(std::vector<StringText> subtitles, dcp::Size target, boost::optional<dcp::SubtitleStandard> override_standard = boost::none);
class FontMetrics
{
public:
FontMetrics(int target_height)
: _target_height(target_height)
{}
float baseline_to_bottom(StringText const& subtitle);
float height(StringText const& subtitle);
private:
/** Class to collect the properties of a subtitle which affect the metrics we care about
* i.e. baseline position and height.
*/
class Identifier
{
public:
Identifier(StringText const& subtitle);
std::shared_ptr<dcpomatic::Font> font;
int size;
float aspect_adjust;
bool operator<(Identifier const& other) const;
};
using Cache = std::map<Identifier, std::pair<float, float>>;
Cache::iterator get(StringText const& subtitle);
Cache _cache;
int _target_height;
};
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