diff widgets/CSVAudioFormatDialog.cpp @ 1323:8068a0bee550

Merge from branch import-audio-data

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widgets/CSVAudioFormatDialog.cpp	Wed Sep 12 15:58:11 2018 +0100
@@ -0,0 +1,220 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Sonic Visualiser
+    An audio file viewer and annotation editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    This file copyright 2006-2018 Chris Cannam and QMUL.
+    
+    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.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#include "CSVAudioFormatDialog.h"
+
+#include "layer/LayerFactory.h"
+
+#include "TextAbbrev.h"
+
+#include <QFrame>
+#include <QGridLayout>
+#include <QPushButton>
+#include <QHBoxLayout>
+#include <QVBoxLayout>
+#include <QTableWidget>
+#include <QComboBox>
+#include <QLabel>
+#include <QDialogButtonBox>
+
+#include <iostream>
+#include <cmath>
+
+#include "base/Debug.h"
+
+CSVAudioFormatDialog::CSVAudioFormatDialog(QWidget *parent, CSVFormat format,
+                                           int maxDisplayCols) :
+    QDialog(parent),
+    m_format(format),
+    m_maxDisplayCols(maxDisplayCols),
+    m_fuzzyColumn(-1)
+{
+    setModal(true);
+    setWindowTitle(tr("Select Audio Data Format"));
+
+    QGridLayout *layout = new QGridLayout;
+
+    int row = 0;
+
+    layout->addWidget
+        (new QLabel(tr("Please select the correct data format for this file.")),
+         row++, 0, 1, 4);
+
+    QFrame *exampleFrame = new QFrame;
+    exampleFrame->setFrameStyle(QFrame::StyledPanel | QFrame::Sunken);
+    exampleFrame->setLineWidth(2);
+    QGridLayout *exampleLayout = new QGridLayout;
+    exampleLayout->setSpacing(4);
+    exampleFrame->setLayout(exampleLayout);
+
+    QPalette palette = exampleFrame->palette();
+    palette.setColor(QPalette::Window, palette.color(QPalette::Base));
+    exampleFrame->setPalette(palette);
+
+    QFont fp;
+    fp.setPointSize(int(floor(fp.pointSize() * 0.9)));
+    
+    int columns = format.getColumnCount();
+    QList<QStringList> example = m_format.getExample();
+
+    for (int i = 0; i < columns; ++i) {
+
+        QComboBox *cpc = new QComboBox;
+        m_columnPurposeCombos.push_back(cpc);
+        exampleLayout->addWidget(cpc, 0, i);
+        connect(cpc, SIGNAL(activated(int)), this, SLOT(columnPurposeChanged(int)));
+        
+        if (i == m_maxDisplayCols && columns > i + 2) {
+            m_fuzzyColumn = i;
+
+            cpc->addItem(tr("<ignore>"));
+            cpc->addItem(tr("Audio channels"));
+            cpc->setCurrentIndex
+                (m_format.getColumnPurpose(i-1) == CSVFormat::ColumnValue ?
+                 1 : 0);
+
+            exampleLayout->addWidget
+                (new QLabel(tr("(%1 more)").arg(columns - i)), 1, i);
+            break;
+        }
+
+        cpc->addItem(tr("<ignore>"));
+        cpc->addItem(tr("Audio channel"));
+        cpc->setCurrentIndex
+            (m_format.getColumnPurpose(i) == CSVFormat::ColumnValue ? 1 : 0);
+        
+        for (int j = 0; j < example.size() && j < 6; ++j) {
+            if (i >= example[j].size()) {
+                continue;
+            }
+            QLabel *label = new QLabel;
+            label->setTextFormat(Qt::PlainText);
+            QString text = TextAbbrev::abbreviate(example[j][i], 35);
+            label->setText(text);
+            label->setFont(fp);
+            label->setPalette(palette);
+            label->setIndent(8);
+            exampleLayout->addWidget(label, j+1, i);
+        }
+    }
+
+    layout->addWidget(exampleFrame, row, 0, 1, 4);
+    layout->setColumnStretch(3, 10);
+    layout->setRowStretch(row++, 10);
+
+    layout->addWidget(new QLabel(tr("Audio sample rate (Hz):")), row, 0);
+    
+    int sampleRates[] = {
+        8000, 11025, 12000, 22050, 24000, 32000,
+        44100, 48000, 88200, 96000, 176400, 192000
+    };
+
+    m_sampleRateCombo = new QComboBox;
+    for (int i = 0; i < int(sizeof(sampleRates) / sizeof(sampleRates[0])); ++i) {
+        m_sampleRateCombo->addItem(QString("%1").arg(sampleRates[i]));
+        if (sampleRates[i] == m_format.getSampleRate()) {
+            m_sampleRateCombo->setCurrentIndex(i);
+        }
+    }
+    m_sampleRateCombo->setEditable(true);
+
+    layout->addWidget(m_sampleRateCombo, row++, 1);
+    connect(m_sampleRateCombo, SIGNAL(activated(QString)),
+            this, SLOT(sampleRateChanged(QString)));
+    connect(m_sampleRateCombo, SIGNAL(editTextChanged(QString)),
+            this, SLOT(sampleRateChanged(QString)));
+    
+    layout->addWidget(new QLabel(tr("Sample values are:")), row, 0);
+    
+    m_sampleRangeCombo = new QComboBox;
+    // NB must be in the same order as the CSVFormat::AudioSampleRange enum
+    m_sampleRangeCombo->addItem(tr("Floating-point in range -1 to 1"));
+    m_sampleRangeCombo->addItem(tr("8-bit in range 0 to 255"));
+    m_sampleRangeCombo->addItem(tr("16-bit in range -32768 to 32767"));
+    m_sampleRangeCombo->addItem(tr("Unknown range: normalise on load"));
+    m_sampleRangeCombo->setCurrentIndex(int(m_format.getAudioSampleRange()));
+
+    layout->addWidget(m_sampleRangeCombo, row++, 1);
+    connect(m_sampleRangeCombo, SIGNAL(activated(int)),
+            this, SLOT(sampleRangeChanged(int)));
+    
+    QDialogButtonBox *bb = new QDialogButtonBox(QDialogButtonBox::Ok |
+                                                QDialogButtonBox::Cancel);
+    layout->addWidget(bb, row++, 0, 1, 4);
+    connect(bb, SIGNAL(accepted()), this, SLOT(accept()));
+    connect(bb, SIGNAL(rejected()), this, SLOT(reject()));
+
+    setLayout(layout);
+
+    updateFormatFromDialog();
+}
+
+CSVAudioFormatDialog::~CSVAudioFormatDialog()
+{
+}
+
+CSVFormat
+CSVAudioFormatDialog::getFormat() const
+{
+    return m_format;
+}
+
+void
+CSVAudioFormatDialog::sampleRateChanged(QString rateString)
+{
+    bool ok = false;
+    int sampleRate = rateString.toInt(&ok);
+    if (ok) m_format.setSampleRate(sampleRate);
+}
+
+void
+CSVAudioFormatDialog::sampleRangeChanged(int range)
+{
+    m_format.setAudioSampleRange((CSVFormat::AudioSampleRange)range);
+}
+
+void
+CSVAudioFormatDialog::columnPurposeChanged(int)
+{
+    updateFormatFromDialog();
+}
+    
+void
+CSVAudioFormatDialog::updateFormatFromDialog()
+{
+    m_format.setModelType(CSVFormat::WaveFileModel);
+    m_format.setTimingType(CSVFormat::ImplicitTiming);
+    m_format.setTimeUnits(CSVFormat::TimeAudioFrames);
+    
+    for (int i = 0; i < m_columnPurposeCombos.size(); ++i) {
+
+        QComboBox *thisCombo = m_columnPurposeCombos[i];
+        
+        CSVFormat::ColumnPurpose purpose = (thisCombo->currentIndex() == 1 ?
+                                            CSVFormat::ColumnValue :
+                                            CSVFormat::ColumnUnknown);
+        
+        if (i == m_fuzzyColumn) {
+            for (int j = i; j < m_format.getColumnCount(); ++j) {
+                m_format.setColumnPurpose(j, purpose);
+            }
+        } else {
+            m_format.setColumnPurpose(i, purpose);
+        }
+    }
+}
+
+
+