BOOST_FOREACH.

[dcpomatic.git] / src / wx / audio_plot.cc

diff --git a/src/wx/audio_plot.cc b/src/wx/audio_plot.cc
index 19e7bdac8420a48de65212dbfdcd631430d8bfee..cb10908df821b432dc68692b51c9e1e67fdcc283 100644 (file)
--- a/src/wx/audio_plot.cc
+++ b/src/wx/audio_plot.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2013-2020 Carl Hetherington <cth@carlh.net>
 
     This file is part of DCP-o-matic.
 
@@ -19,27 +19,38 @@
 */
 
 #include "audio_plot.h"
+#include "wx_util.h"
+#include "film_viewer.h"
 #include "lib/audio_decoder.h"
 #include "lib/audio_analysis.h"
 #include "lib/compose.hpp"
-#include "wx/wx_util.h"
 #include <wx/graphics.h>
-#include <boost/bind.hpp>
+#include <boost/bind/bind.hpp>
 #include <iostream>
+#include <cfloat>
 
 using std::cout;
 using std::vector;
 using std::list;
 using std::max;
 using std::min;
+using std::map;
 using boost::bind;
-using boost::shared_ptr;
+using boost::optional;
+using std::shared_ptr;
+using std::weak_ptr;
+#if BOOST_VERSION >= 106100
+using namespace boost::placeholders;
+#endif
+using namespace dcpomatic;
 
 int const AudioPlot::_minimum = -70;
+int const AudioPlot::_cursor_size = 8;
 int const AudioPlot::max_smoothing = 128;
 
-AudioPlot::AudioPlot (wxWindow* parent)
+AudioPlot::AudioPlot (wxWindow* parent, weak_ptr<FilmViewer> viewer)
        : wxPanel (parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxFULL_REPAINT_ON_RESIZE)
+       , _viewer (viewer)
        , _smoothing (max_smoothing / 2)
        , _gain_correction (0)
 {
@@ -80,6 +91,9 @@ AudioPlot::AudioPlot (wxWindow* parent)
 #endif
 
        Bind (wxEVT_PAINT, boost::bind (&AudioPlot::paint, this));
+       Bind (wxEVT_MOTION, boost::bind (&AudioPlot::mouse_moved, this, _1));
+       Bind (wxEVT_LEAVE_WINDOW, boost::bind (&AudioPlot::mouse_leave, this, _1));
+       Bind (wxEVT_LEFT_DOWN, boost::bind(&AudioPlot::left_down, this));
 
        SetMinSize (wxSize (640, 512));
 }
@@ -139,6 +153,7 @@ AudioPlot::paint ()
        if (!_analysis || _analysis->channels() == 0) {
                gc->SetFont (gc->CreateFont (*wxNORMAL_FONT));
                gc->DrawText (_message, 32, 32);
+               delete gc;
                return;
        }
 
@@ -239,6 +254,17 @@ AudioPlot::paint ()
        gc->SetPen (wxPen (wxColour (0, 0, 0)));
        gc->StrokePath (axes);
 
+       if (_cursor) {
+               wxGraphicsPath cursor = gc->CreatePath ();
+               cursor.MoveToPoint (_cursor->draw.x - _cursor_size / 2, _cursor->draw.y - _cursor_size / 2);
+               cursor.AddLineToPoint (_cursor->draw.x + _cursor_size / 2, _cursor->draw.y + _cursor_size / 2);
+               cursor.MoveToPoint (_cursor->draw.x + _cursor_size / 2, _cursor->draw.y - _cursor_size / 2);
+               cursor.AddLineToPoint (_cursor->draw.x - _cursor_size / 2, _cursor->draw.y + _cursor_size / 2);
+               gc->StrokePath (cursor);
+
+
+       }
+
        delete gc;
 }
 
@@ -249,7 +275,7 @@ AudioPlot::y_for_linear (float p, Metrics const & metrics) const
                p = 1e-4;
        }
 
-       return metrics.height - (20 * log10(p) - _minimum) * metrics.y_scale - metrics.y_origin;
+       return metrics.height - (linear_to_db(p) - _minimum) * metrics.y_scale - metrics.y_origin;
 }
 
 void
@@ -276,7 +302,7 @@ AudioPlot::plot_peak (wxGraphicsPath& path, int channel, Metrics const & metrics
                        Point (
                                wxPoint (metrics.db_label_width + i * metrics.x_scale, y_for_linear (peak, metrics)),
                                DCPTime::from_frames (i * _analysis->samples_per_point(), _analysis->sample_rate()),
-                               peak
+                               linear_to_db(peak)
                                )
                        );
        }
@@ -284,7 +310,7 @@ AudioPlot::plot_peak (wxGraphicsPath& path, int channel, Metrics const & metrics
        DCPOMATIC_ASSERT (_peak.find(channel) != _peak.end());
 
        path.MoveToPoint (_peak[channel][0].draw);
-       BOOST_FOREACH (Point const & i, _peak[channel]) {
+       for (auto const& i: _peak[channel]) {
                path.AddLineToPoint (i.draw);
        }
 }
@@ -345,7 +371,7 @@ AudioPlot::plot_rms (wxGraphicsPath& path, int channel, Metrics const & metrics)
                        Point (
                                wxPoint (metrics.db_label_width + i * metrics.x_scale, y_for_linear (p, metrics)),
                                DCPTime::from_frames (i * _analysis->samples_per_point(), _analysis->sample_rate()),
-                               p
+                               linear_to_db(p)
                                )
                        );
        }
@@ -353,7 +379,7 @@ AudioPlot::plot_rms (wxGraphicsPath& path, int channel, Metrics const & metrics)
        DCPOMATIC_ASSERT (_rms.find(channel) != _rms.end());
 
        path.MoveToPoint (_rms[channel][0].draw);
-       BOOST_FOREACH (Point const & i, _rms[channel]) {
+       for (auto const& i: _rms[channel]) {
                path.AddLineToPoint (i.draw);
        }
 }
@@ -379,7 +405,7 @@ AudioPlot::get_point (int channel, int point) const
 {
        AudioPoint p = _analysis->get_point (channel, point);
        for (int i = 0; i < AudioPoint::COUNT; ++i) {
-               p[i] *= pow (10, _gain_correction / 20);
+               p[i] *= db_to_linear(_gain_correction);
        }
 
        return p;
@@ -394,3 +420,59 @@ AudioPlot::colour (int n) const
        DCPOMATIC_ASSERT (n < int(_colours.size()));
        return _colours[n];
 }
+
+void
+AudioPlot::search (map<int, PointList> const & search, wxMouseEvent const & ev, double& min_dist, Point& min_point) const
+{
+       for (map<int, PointList>::const_iterator i = search.begin(); i != search.end(); ++i) {
+               for (auto const& j: i->second) {
+                       double const dist = pow(ev.GetX() - j.draw.x, 2) + pow(ev.GetY() - j.draw.y, 2);
+                       if (dist < min_dist) {
+                               min_dist = dist;
+                               min_point = j;
+                       }
+               }
+       }
+}
+
+
+void
+AudioPlot::left_down ()
+{
+       if (_cursor) {
+               shared_ptr<FilmViewer> fv = _viewer.lock ();
+               if (fv) {
+                       fv->seek (_cursor->time, true);
+               }
+       }
+}
+
+
+void
+AudioPlot::mouse_moved (wxMouseEvent& ev)
+{
+       double min_dist = DBL_MAX;
+       Point min_point;
+
+       search (_rms, ev, min_dist, min_point);
+       search (_peak, ev, min_dist, min_point);
+
+       _cursor = optional<Point> ();
+
+       if (min_dist < DBL_MAX) {
+               wxRect before (min_point.draw.x - _cursor_size / 2, min_point.draw.y - _cursor_size / 2, _cursor_size, _cursor_size);
+               GetParent()->Refresh (true, &before);
+               _cursor = min_point;
+               wxRect after (min_point.draw.x - _cursor_size / 2, min_point.draw.y - _cursor_size / 2, _cursor_size, _cursor_size);
+               GetParent()->Refresh (true, &after);
+               Cursor (min_point.time, min_point.db);
+       }
+}
+
+void
+AudioPlot::mouse_leave (wxMouseEvent &)
+{
+       _cursor = optional<Point> ();
+       Refresh ();
+       Cursor (optional<DCPTime>(), optional<float>());
+}