Chris@885: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@885: 
Chris@885: /*
Chris@885:     Sonic Visualiser
Chris@885:     An audio file viewer and annotation editor.
Chris@885:     Centre for Digital Music, Queen Mary, University of London.
Chris@885:     
Chris@885:     This program is free software; you can redistribute it and/or
Chris@885:     modify it under the terms of the GNU General Public License as
Chris@885:     published by the Free Software Foundation; either version 2 of the
Chris@885:     License, or (at your option) any later version.  See the file
Chris@885:     COPYING included with this distribution for more information.
Chris@885: */
Chris@885: 
Chris@885: #include "UnitConverter.h"
Chris@885: 
Chris@885: #include <QSpinBox>
Chris@885: #include <QComboBox>
Chris@885: #include <QDoubleSpinBox>
Chris@885: #include <QLabel>
Chris@885: #include <QDialogButtonBox>
Chris@885: #include <QGridLayout>
Chris@889: #include <QTabWidget>
Chris@885: 
Chris@885: #include "base/Debug.h"
Chris@885: #include "base/Pitch.h"
Chris@888: #include "base/Preferences.h"
Chris@885: 
Chris@885: using namespace std;
Chris@885: 
Chris@886: static QString pianoNotes[] = {
Chris@886:     "C", "C# / Db", "D", "D# / Eb", "E",
Chris@886:     "F", "F# / Gb", "G", "G# / Ab", "A", "A# / Bb", "B"
Chris@886: };
Chris@886: 
Chris@885: UnitConverter::UnitConverter(QWidget *parent) :
Chris@885:     QDialog(parent)
Chris@885: {
Chris@889:     QGridLayout *maingrid = new QGridLayout;
Chris@889:     setLayout(maingrid);
Chris@889:     
Chris@889:     QTabWidget *tabs = new QTabWidget;
Chris@889:     maingrid->addWidget(tabs, 0, 0);
Chris@889:     
Chris@889:     QDialogButtonBox *bb = new QDialogButtonBox(QDialogButtonBox::Close);
Chris@889:     maingrid->addWidget(bb, 1, 0);
Chris@889:     connect(bb, SIGNAL(rejected()), this, SLOT(close()));
Chris@889:     
Chris@889:     QFrame *frame = new QFrame;
Chris@889:     tabs->addTab(frame, tr("Pitch"));
Chris@889:     
Chris@885:     QGridLayout *grid = new QGridLayout;
Chris@889:     frame->setLayout(grid);
Chris@885: 
Chris@889:     m_freq = new QDoubleSpinBox;
Chris@889:     m_freq->setSuffix(QString(" Hz"));
Chris@889:     m_freq->setDecimals(6);
Chris@889:     m_freq->setMinimum(1e-3);
Chris@889:     m_freq->setMaximum(1e6);
Chris@889:     m_freq->setValue(440);
Chris@889:     connect(m_freq, SIGNAL(valueChanged(double)),
Chris@889: 	    this, SLOT(freqChanged(double)));
Chris@885: 
Chris@888:     // The min and max range values for all the remaining controls are
Chris@888:     // determined by the min and max Hz above
Chris@888:     
Chris@885:     m_midi = new QSpinBox;
Chris@888:     m_midi->setMinimum(-156);
Chris@888:     m_midi->setMaximum(203);
Chris@885:     connect(m_midi, SIGNAL(valueChanged(int)),
Chris@885: 	    this, SLOT(midiChanged(int)));
Chris@885: 
Chris@885:     m_note = new QComboBox;
Chris@886:     for (int i = 0; i < 12; ++i) {
Chris@886: 	m_note->addItem(pianoNotes[i]);
Chris@886:     }
Chris@886:     connect(m_note, SIGNAL(currentIndexChanged(int)),
Chris@886: 	    this, SLOT(noteChanged(int)));
Chris@885: 
Chris@885:     m_octave = new QSpinBox;
Chris@888:     m_octave->setMinimum(-14);
Chris@888:     m_octave->setMaximum(15);
Chris@886:     connect(m_octave, SIGNAL(valueChanged(int)),
Chris@886: 	    this, SLOT(octaveChanged(int)));
Chris@885: 
Chris@885:     m_cents = new QDoubleSpinBox;
Chris@885:     m_cents->setSuffix(tr(" cents"));
Chris@885:     m_cents->setDecimals(4);
Chris@885:     m_cents->setMinimum(-50);
Chris@885:     m_cents->setMaximum(50);
Chris@885:     connect(m_cents, SIGNAL(valueChanged(double)),
Chris@885: 	    this, SLOT(centsChanged(double)));
Chris@885: 
Chris@885:     m_piano = new QSpinBox;
Chris@885:     //!!!
Chris@885:     
Chris@886:     int row = 1;
Chris@886:     
Chris@889:     grid->addWidget(m_freq, row, 0, 2, 1);
Chris@889:     grid->addWidget(new QLabel(tr("=")), row, 1, 2, 1);
Chris@885: 
Chris@889:     grid->addWidget(new QLabel(tr("+")), row, 7, 2, 1);
Chris@889:     grid->addWidget(m_cents, row, 8, 2, 1);
Chris@885: 
Chris@886:     grid->addWidget(new QLabel(tr("Piano note")), row, 2, 1, 2);
Chris@886:     grid->addWidget(m_note, row, 4);
Chris@886:     grid->addWidget(new QLabel(tr("in octave")), row, 5);
Chris@886:     grid->addWidget(m_octave, row, 6);
Chris@886: 
Chris@886:     ++row;
Chris@886:     
Chris@888:     grid->addWidget(new QLabel(tr("MIDI pitch")), row, 2, 1, 2);
Chris@886:     grid->addWidget(m_midi, row, 4);
Chris@886:     
Chris@886:     ++row;
Chris@885: 
Chris@888:     grid->addWidget
Chris@888: 	(new QLabel(tr("With concert A tuning frequency at %1 Hz, and "
Chris@888: 		       "middle C residing in octave %2.\n"
Chris@888: 		       "(These can be changed in the application preferences.)")
Chris@888: 		    .arg(Preferences::getInstance()->getTuningFrequency())
Chris@888: 		    .arg(Preferences::getInstance()->getOctaveOfMiddleC())),
Chris@888: 	 row, 0, 1, 9);
Chris@888: 
Chris@888:     ++row;
Chris@888:     
Chris@888:     grid->addWidget
Chris@888: 	(new QLabel(tr("Note that only pitches in the range 0 to 127 are valid "
Chris@888: 		       "in the MIDI protocol.")),
Chris@888: 	 row, 0, 1, 9);
Chris@888: 
Chris@888:     ++row;
Chris@888:     
Chris@889:     QFrame *frame = new QFrame;
Chris@889:     tabs->addTab(frame, tr("Pitch"));
Chris@889:     
Chris@889:     QGridLayout *grid = new QGridLayout;
Chris@889:     frame->setLayout(grid);
Chris@885: 
Chris@889:     updatePitchesFromFreq();
Chris@885: }
Chris@885: 
Chris@885: UnitConverter::~UnitConverter()
Chris@885: {
Chris@885: }
Chris@885: 
Chris@885: void
Chris@889: UnitConverter::freqChanged(double freq)
Chris@885: {
Chris@889:     cerr << "freqChanged: " << freq << endl;
Chris@889:     updatePitchesFromFreq();
Chris@885: }
Chris@885: 
Chris@885: void
Chris@885: UnitConverter::midiChanged(int midi)
Chris@885: {
Chris@885:     cerr << "midiChanged: " << midi << endl;
Chris@889:     double freq = Pitch::getFrequencyForPitch(m_midi->value(), m_cents->value());
Chris@889:     cerr << "freq -> " << freq << endl;
Chris@889:     m_freq->setValue(freq);
Chris@885: }
Chris@885: 
Chris@885: void
Chris@885: UnitConverter::noteChanged(int note)
Chris@885: {
Chris@885:     cerr << "noteChanged: " << note << endl;
Chris@887:     int pitch = Pitch::getPitchForNoteAndOctave(m_note->currentIndex(),
Chris@887: 						m_octave->value());
Chris@889:     double freq = Pitch::getFrequencyForPitch(pitch, m_cents->value());
Chris@889:     cerr << "freq -> " << freq << endl;
Chris@889:     m_freq->setValue(freq);
Chris@885: }
Chris@885: 
Chris@885: void
Chris@885: UnitConverter::octaveChanged(int oct)
Chris@885: {
Chris@885:     cerr << "octaveChanged: " << oct << endl;
Chris@888:     int pitch = Pitch::getPitchForNoteAndOctave(m_note->currentIndex(),
Chris@888: 						m_octave->value());
Chris@889:     double freq = Pitch::getFrequencyForPitch(pitch, m_cents->value());
Chris@889:     cerr << "freq -> " << freq << endl;
Chris@889:     m_freq->setValue(freq);
Chris@885: }
Chris@885: 
Chris@885: void
Chris@885: UnitConverter::centsChanged(double cents)
Chris@885: {
Chris@885:     cerr << "centsChanged: " << cents << endl;
Chris@889:     double freq = Pitch::getFrequencyForPitch(m_midi->value(), m_cents->value());
Chris@889:     cerr << "freq -> " << freq << endl;
Chris@889:     m_freq->setValue(freq);
Chris@885: }
Chris@885: 
Chris@885: void
Chris@885: UnitConverter::pianoChanged(int piano)
Chris@885: {
Chris@885:     cerr << "pianoChanged: " << piano << endl;
Chris@885: }
Chris@885: 
Chris@885: void
Chris@889: UnitConverter::updatePitchesFromFreq()
Chris@885: {
Chris@885:     float cents = 0;
Chris@889:     int pitch = Pitch::getPitchForFrequency(m_freq->value(), &cents);
Chris@887:     int note, octave;
Chris@887:     Pitch::getNoteAndOctaveForPitch(pitch, note, octave);
Chris@885: 
Chris@888:     cerr << "pitch " << pitch << " note " << note << " octave " << octave << " cents " << cents << endl;
Chris@888:     
Chris@885:     m_midi->blockSignals(true);
Chris@885:     m_cents->blockSignals(true);
Chris@887:     m_note->blockSignals(true);
Chris@887:     m_octave->blockSignals(true);
Chris@885:     
Chris@885:     m_midi->setValue(pitch);
Chris@885:     m_cents->setValue(cents);
Chris@887:     m_note->setCurrentIndex(note);
Chris@887:     m_octave->setValue(octave);
Chris@887:     
Chris@885:     m_midi->blockSignals(false);
Chris@885:     m_cents->blockSignals(false);
Chris@887:     m_note->blockSignals(false);
Chris@887:     m_octave->blockSignals(false);
Chris@885: }
Chris@885: 
Chris@885: 
Chris@885: 
Chris@885: