+/*
+ Copyright (C) 2013 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 <iostream>
#include <boost/bind.hpp>
#include <wx/graphics.h>
using boost::bind;
using boost::shared_ptr;
-AudioPlot::AudioPlot (wxWindow* parent, shared_ptr<AudioAnalysis> a, int c)
+int const AudioPlot::_minimum = -90;
+
+AudioPlot::AudioPlot (wxWindow* parent)
: wxPanel (parent)
- , _analysis (a)
- , _channel (c)
+ , _gain (0)
{
- Connect (wxID_ANY, wxEVT_PAINT, wxPaintEventHandler (AudioPlot::paint), 0, this);
+ SetDoubleBuffered (true);
+ for (int i = 0; i < MAX_AUDIO_CHANNELS; ++i) {
+ _channel_visible[i] = false;
+ }
+
+ for (int i = 0; i < AudioPoint::COUNT; ++i) {
+ _type_visible[i] = false;
+ }
+
+ _colours.push_back (wxColour ( 0, 0, 0));
+ _colours.push_back (wxColour (255, 0, 0));
+ _colours.push_back (wxColour ( 0, 255, 0));
+ _colours.push_back (wxColour (139, 0, 204));
+ _colours.push_back (wxColour ( 0, 0, 255));
+ _colours.push_back (wxColour (100, 100, 100));
+
+ Connect (wxID_ANY, wxEVT_PAINT, wxPaintEventHandler (AudioPlot::paint), 0, this);
+
SetMinSize (wxSize (640, 512));
}
+void
+AudioPlot::set_analysis (shared_ptr<AudioAnalysis> a)
+{
+ _analysis = a;
+
+ for (int i = 0; i < MAX_AUDIO_CHANNELS; ++i) {
+ _channel_visible[i] = false;
+ }
+
+ for (int i = 0; i < AudioPoint::COUNT; ++i) {
+ _type_visible[i] = false;
+ }
+
+ Refresh ();
+}
+
+void
+AudioPlot::set_channel_visible (int c, bool v)
+{
+ _channel_visible[c] = v;
+ Refresh ();
+}
+
+void
+AudioPlot::set_type_visible (int t, bool v)
+{
+ _type_visible[t] = v;
+ Refresh ();
+}
+
void
AudioPlot::paint (wxPaintEvent &)
{
wxPaintDC dc (this);
+
wxGraphicsContext* gc = wxGraphicsContext::Create (dc);
if (!gc) {
return;
}
- int const width = GetSize().GetWidth();
- float const xs = width / float (_analysis->points (_channel));
- int const height = GetSize().GetHeight ();
- float const ys = height / 60;
+ if (!_analysis || _analysis->channels() == 0) {
+ gc->SetFont (gc->CreateFont (*wxNORMAL_FONT));
+ gc->DrawText (_("Please wait; audio is being analysed..."), 32, 32);
+ return;
+ }
wxGraphicsPath grid = gc->CreatePath ();
gc->SetFont (gc->CreateFont (*wxSMALL_FONT));
- for (int i = -60; i <= 0; i += 10) {
- int const y = height - (i + 60) * ys;
- grid.MoveToPoint (0, y);
- grid.AddLineToPoint (width, y);
- gc->DrawText (std_to_wx (String::compose ("%1dB", i)), width - 32, y - 12);
+ wxDouble db_label_width;
+ wxDouble db_label_height;
+ wxDouble db_label_descent;
+ wxDouble db_label_leading;
+ gc->GetTextExtent (_("-80dB"), &db_label_width, &db_label_height, &db_label_descent, &db_label_leading);
+
+ db_label_width += 8;
+
+ int const data_width = GetSize().GetWidth() - db_label_width;
+ /* Assume all channels have the same number of points */
+ float const xs = data_width / float (_analysis->points (0));
+ int const height = GetSize().GetHeight ();
+ int const yo = 32;
+ float const ys = (height - yo) / -_minimum;
+
+ for (int i = _minimum; i <= 0; i += 10) {
+ int const y = (height - (i - _minimum) * ys) - yo;
+ grid.MoveToPoint (db_label_width - 4, y);
+ grid.AddLineToPoint (db_label_width + data_width, y);
+ gc->DrawText (std_to_wx (String::compose ("%1dB", i)), 0, y - (db_label_height / 2));
}
+
gc->SetPen (*wxLIGHT_GREY_PEN);
gc->StrokePath (grid);
- wxGraphicsPath path[AudioPoint::COUNT];
+ gc->DrawText (_("Time"), data_width, height - yo + db_label_height / 2);
- for (int i = 0; i < AudioPoint::COUNT; ++i) {
- path[i] = gc->CreatePath ();
- path[i].MoveToPoint (0, height - (max (_analysis->get_point(_channel, 0)[i], -60.0f) + 60) * ys);
- }
+ for (int c = 0; c < MAX_AUDIO_CHANNELS; ++c) {
+ if (!_channel_visible[c] || c >= _analysis->channels()) {
+ continue;
+ }
- for (int i = 0; i < _analysis->points(_channel); ++i) {
- for (int j = 0; j < AudioPoint::COUNT; ++j) {
- path[j].AddLineToPoint (i * xs, height - (max (_analysis->get_point(_channel, i)[j], -60.0f) + 60) * ys);
+ wxGraphicsPath path[AudioPoint::COUNT];
+
+ for (int i = 0; i < AudioPoint::COUNT; ++i) {
+ if (!_type_visible[i]) {
+ continue;
+ }
+
+ path[i] = gc->CreatePath ();
+ path[i].MoveToPoint (
+ db_label_width,
+ height - (max (_analysis->get_point(c, 0)[i], float (_minimum)) - _minimum + _gain) * ys - yo
+ );
}
- }
- gc->SetPen (*wxBLUE_PEN);
- gc->StrokePath (path[AudioPoint::RMS]);
+ for (int i = 0; i < _analysis->points(c); ++i) {
+ for (int j = 0; j < AudioPoint::COUNT; ++j) {
+ if (!_type_visible[j]) {
+ continue;
+ }
+
+ path[j].AddLineToPoint (
+ i * xs + db_label_width,
+ height - (max (_analysis->get_point(c, i)[j], float (_minimum)) - _minimum + _gain) * ys - yo
+ );
+ }
+ }
- gc->SetPen (*wxRED_PEN);
- gc->StrokePath (path[AudioPoint::PEAK]);
+ wxColour const col = _colours[c];
+
+ if (_type_visible[AudioPoint::RMS]) {
+ gc->SetPen (*wxThePenList->FindOrCreatePen (col));
+ gc->StrokePath (path[AudioPoint::RMS]);
+ }
+
+ if (_type_visible[AudioPoint::PEAK]) {
+ gc->SetPen (*wxThePenList->FindOrCreatePen (wxColour (col.Red(), col.Green(), col.Blue(), col.Alpha() / 2)));
+ gc->StrokePath (path[AudioPoint::PEAK]);
+ }
+ }
+
+ wxGraphicsPath axes = gc->CreatePath ();
+ axes.MoveToPoint (db_label_width, 0);
+ axes.AddLineToPoint (db_label_width, height - yo);
+ axes.AddLineToPoint (db_label_width + data_width, height - yo);
+ gc->SetPen (*wxBLACK_PEN);
+ gc->StrokePath (axes);
delete gc;
}
+
+void
+AudioPlot::set_gain (float g)
+{
+ _gain = g;
+ Refresh ();
+}
projects / dcpomatic.git / blobdiff