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/*
Copyright (C) 2012-2020 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 "lib/util.h"
#include "lib/audio_analysis.h"
#include <wx/wx.h>
#include <boost/shared_ptr.hpp>
#include <boost/signals2.hpp>
#include <vector>
struct Metrics;
class FilmViewer;
class AudioPlot : public wxPanel
{
public:
explicit AudioPlot (wxWindow *, boost::weak_ptr<FilmViewer> viewer);
void set_analysis (boost::shared_ptr<AudioAnalysis>);
void set_channel_visible (int c, bool v);
void set_type_visible (int t, bool v);
void set_smoothing (int);
void set_message (wxString);
void set_gain_correction (double gain);
wxColour colour (int n) const;
boost::signals2::signal<void (boost::optional<dcpomatic::DCPTime>, boost::optional<float>)> Cursor;
static const int max_smoothing;
private:
struct Point {
Point ()
: db(0)
{}
Point (wxPoint draw_, dcpomatic::DCPTime time_, float db_)
: draw(draw_)
, time(time_)
, db(db_)
{}
wxPoint draw;
dcpomatic::DCPTime time;
float db;
};
typedef std::vector<Point> PointList;
void paint ();
void plot_peak (wxGraphicsPath &, int, Metrics const &) const;
void plot_rms (wxGraphicsPath &, int, Metrics const &) const;
float y_for_linear (float, Metrics const &) const;
AudioPoint get_point (int channel, int point) const;
void left_down ();
void mouse_moved (wxMouseEvent& ev);
void mouse_leave (wxMouseEvent& ev);
void search (std::map<int, PointList> const & search, wxMouseEvent const & ev, double& min_dist, Point& min_point) const;
boost::weak_ptr<FilmViewer> _viewer;
boost::shared_ptr<AudioAnalysis> _analysis;
bool _channel_visible[MAX_DCP_AUDIO_CHANNELS];
bool _type_visible[AudioPoint::COUNT];
int _smoothing;
std::vector<wxColour> _colours;
wxString _message;
float _gain_correction;
mutable std::map<int, PointList> _peak;
mutable std::map<int, PointList> _rms;
boost::optional<Point> _cursor;
static const int _minimum;
static const int _cursor_size;
};
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