view widgets/CSVFormatDialog.cpp @ 959:2633a1d73e39

Address #1214, layer import produces wrong layer type. We needed a more principled approach to making sure the format gets updated properly and the dialog elements are consistent (basically separating making the dialog elements consistent from subsequently updating the format). This change should provide that, though there may be gotchas still.

/* -*- 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 Chris Cannam.
    
    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 "CSVFormatDialog.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"

CSVFormatDialog::CSVFormatDialog(QWidget *parent, CSVFormat format,
                                 int maxDisplayCols) :
    QDialog(parent),
    m_format(format),
    m_maxDisplayCols(maxDisplayCols),
    m_fuzzyColumn(-1)
{
    setModal(true);
    setWindowTitle(tr("Select 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)));
//    fp.setFixedPitch(true);
//    fp.setStyleHint(QFont::TypeWriter);
//    fp.setFamily("Monospaced");
    
    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("Values"));
            cpc->setCurrentIndex
                (m_format.getColumnPurpose(i-1) == CSVFormat::ColumnUnknown ? 0 : 1);
            exampleLayout->addWidget(new QLabel(tr("(%1 more)").arg(columns - i)),
                                     1, i);
            break;
        }

        // NB must be in the same order as the CSVFormat::ColumnPurpose enum
        cpc->addItem(tr("<ignore>")); // ColumnUnknown
        cpc->addItem(tr("Time"));     // ColumnStartTime
        cpc->addItem(tr("End time")); // ColumnEndTime
        cpc->addItem(tr("Duration")); // ColumnDuration
        cpc->addItem(tr("Value"));    // ColumnValue
        cpc->addItem(tr("Pitch"));    // ColumnPitch
        cpc->addItem(tr("Label"));    // ColumnLabel
        cpc->setCurrentIndex(int(m_format.getColumnPurpose(i)));

        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("Timing is specified:")), row, 0);
    
    m_timingTypeCombo = new QComboBox;

    m_timingLabels = {
        { TimingExplicitSeconds, tr("Explicitly, in seconds") },
        { TimingExplicitMsec, tr("Explicitly, in milliseconds") },
        { TimingExplicitSamples, tr("Explicitly, in audio sample frames") },
        { TimingImplicit, tr("Implicitly: rows are equally spaced in time") }
    };

    for (auto &l: m_timingLabels) {
        m_timingTypeCombo->addItem(l.second);
    }

    layout->addWidget(m_timingTypeCombo, row++, 1, 1, 2);

    connect(m_timingTypeCombo, SIGNAL(activated(int)),
	    this, SLOT(timingTypeChanged(int)));

    m_initialTimingOption = TimingImplicit;
    if (m_format.getTimingType() == CSVFormat::ExplicitTiming) {
        switch (m_format.getTimeUnits()) {
        case CSVFormat::TimeSeconds:
            m_initialTimingOption = TimingExplicitSeconds; break;
        case CSVFormat::TimeMilliseconds:
            m_initialTimingOption = TimingExplicitMsec; break;
        case CSVFormat::TimeAudioFrames:
            m_initialTimingOption = TimingExplicitSamples; break;
        case CSVFormat::TimeWindows:
            m_initialTimingOption = TimingImplicit; break;
        }
    }
    m_timingTypeCombo->setCurrentIndex(int(m_initialTimingOption));

    m_sampleRateLabel = new QLabel(tr("Audio sample rate (Hz):"));
    layout->addWidget(m_sampleRateLabel, 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)));

    m_windowSizeLabel = new QLabel(tr("Frame increment between rows:"));
    layout->addWidget(m_windowSizeLabel, row, 0);

    m_windowSizeCombo = new QComboBox;
    for (int i = 0; i <= 16; ++i) {
	int value = 1 << i;
	m_windowSizeCombo->addItem(QString("%1").arg(value));
	if (value == int(m_format.getWindowSize())) {
            m_windowSizeCombo->setCurrentIndex(i);
        }
    }
    m_windowSizeCombo->setEditable(true);

    layout->addWidget(m_windowSizeCombo, row++, 1);
    connect(m_windowSizeCombo, SIGNAL(activated(QString)),
	    this, SLOT(windowSizeChanged(QString)));
    connect(m_windowSizeCombo, SIGNAL(editTextChanged(QString)),
	    this, SLOT(windowSizeChanged(QString)));

    m_modelLabel = new QLabel;
    QFont f(m_modelLabel->font());
    f.setItalic(true);
    m_modelLabel->setFont(f);
    layout->addWidget(m_modelLabel, row++, 0, 1, 4);

    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);

    timingTypeChanged(m_timingTypeCombo->currentIndex());
}

CSVFormatDialog::~CSVFormatDialog()
{
}

CSVFormat
CSVFormatDialog::getFormat() const
{
    return m_format;
}

void
CSVFormatDialog::updateModelLabel()
{
    LayerFactory *f = LayerFactory::getInstance();

    QString s;
    switch (m_format.getModelType()) {
    case CSVFormat::OneDimensionalModel:
        s = f->getLayerPresentationName(LayerFactory::TimeInstants);
        break;
    case CSVFormat::TwoDimensionalModel:
        s = f->getLayerPresentationName(LayerFactory::TimeValues);
        break; 
    case CSVFormat::TwoDimensionalModelWithDuration:
        s = f->getLayerPresentationName(LayerFactory::Regions);
        break;
    case CSVFormat::TwoDimensionalModelWithDurationAndPitch:
        s = f->getLayerPresentationName(LayerFactory::Notes);
        break;
    case CSVFormat::ThreeDimensionalModel:
        s = f->getLayerPresentationName(LayerFactory::Colour3DPlot);
        break;
    }   

    m_modelLabel->setText("\n" + tr("Data will be displayed in a %1 layer.").arg(s));
}

void
CSVFormatDialog::applyStartTimePurpose()
{
    // First check if we already have any
    for (int i = 0; i < m_format.getColumnCount(); ++i) {
        QComboBox *cb = m_columnPurposeCombos[i];
        if (cb->currentIndex() == int(CSVFormat::ColumnStartTime)) {
            return;
        }
    }
    // and if not, select one
    for (int i = 0; i < m_format.getColumnCount(); ++i) {
        QComboBox *cb = m_columnPurposeCombos[i];
        if (cb->currentIndex() == int(CSVFormat::ColumnValue)) {
            cb->setCurrentIndex(int(CSVFormat::ColumnStartTime));
            return;
        }
    }
}

void
CSVFormatDialog::removeStartTimePurpose()
{
    for (int i = 0; i < m_format.getColumnCount(); ++i) {
        QComboBox *cb = m_columnPurposeCombos[i];
        if (cb->currentIndex() == int(CSVFormat::ColumnStartTime)) {
            cb->setCurrentIndex(int(CSVFormat::ColumnValue));
        }
    }
}

void
CSVFormatDialog::updateComboVisibility()
{
    bool wantRate = (m_format.getTimingType() == CSVFormat::ImplicitTiming ||
                     m_format.getTimeUnits() == CSVFormat::TimeAudioFrames);
    bool wantWindow = (m_format.getTimingType() == CSVFormat::ImplicitTiming);
    
    m_sampleRateCombo->setEnabled(wantRate);
    m_sampleRateLabel->setEnabled(wantRate);

    m_windowSizeCombo->setEnabled(wantWindow);
    m_windowSizeLabel->setEnabled(wantWindow);
}

void
CSVFormatDialog::timingTypeChanged(int type)
{
    // Update any column purpose combos
    if (TimingOption(type) == TimingImplicit) {
        removeStartTimePurpose();
    } else {
        applyStartTimePurpose();
    }
    updateFormatFromDialog();
    updateComboVisibility();
}

void
CSVFormatDialog::sampleRateChanged(QString rateString)
{
    bool ok = false;
    int sampleRate = rateString.toInt(&ok);
    if (ok) m_format.setSampleRate(sampleRate);
}

void
CSVFormatDialog::windowSizeChanged(QString sizeString)
{
    bool ok = false;
    int size = sizeString.toInt(&ok);
    if (ok) m_format.setWindowSize(size);
}

void
CSVFormatDialog::columnPurposeChanged(int p)
{
    QObject *o = sender();
    QComboBox *cb = qobject_cast<QComboBox *>(o);
    if (!cb) return;

    CSVFormat::ColumnPurpose purpose = (CSVFormat::ColumnPurpose)p;

    bool haveStartTime = false; // so as to update timing type combo appropriately
    
    // Ensure the column purpose combos are consistent with one
    // another, without reference to m_format (which we'll update
    // separately)
    
    for (int i = 0; i < m_columnPurposeCombos.size(); ++i) {

        QComboBox *thisCombo = m_columnPurposeCombos[i];
        
        CSVFormat::ColumnPurpose cp = (CSVFormat::ColumnPurpose)
            (thisCombo->currentIndex());
        bool thisChanged = (cb == thisCombo);
        
        if (!thisChanged) {

            if (i == m_fuzzyColumn) continue;

            // We can only have one ColumnStartTime column, and only
            // one of either ColumnDuration or ColumnEndTime

            if (purpose == CSVFormat::ColumnStartTime) {
                if (cp == purpose) {
                    cp = CSVFormat::ColumnValue;
                }
            } else if (purpose == CSVFormat::ColumnDuration ||
                       purpose == CSVFormat::ColumnEndTime) {
                if (cp == CSVFormat::ColumnDuration ||
                    cp == CSVFormat::ColumnEndTime) {
                    cp = CSVFormat::ColumnValue;
                }
            }

            // And we can only have one label
            if (purpose == CSVFormat::ColumnLabel) {
                if (cp == purpose) {
                    cp = CSVFormat::ColumnUnknown;
                }
            }

            if (cp == CSVFormat::ColumnStartTime) {
                haveStartTime = true;
            }
        
            thisCombo->setCurrentIndex(int(cp));

        } else {
            if (purpose == CSVFormat::ColumnStartTime) {
                haveStartTime = true;
            }
        }
    }

    if (!haveStartTime) {
        m_timingTypeCombo->setCurrentIndex(int(TimingImplicit));
    } else if (m_timingTypeCombo->currentIndex() == int(TimingImplicit)) {
        if (m_initialTimingOption == TimingImplicit) {
            m_timingTypeCombo->setCurrentIndex(TimingExplicitSeconds);
        } else {
            m_timingTypeCombo->setCurrentIndex(m_initialTimingOption);
        }
    }

    updateFormatFromDialog();
    updateComboVisibility();
}

void
CSVFormatDialog::updateFormatFromDialog()
{
    switch (TimingOption(m_timingTypeCombo->currentIndex())) {

    case TimingExplicitSeconds:
	m_format.setTimingType(CSVFormat::ExplicitTiming);
	m_format.setTimeUnits(CSVFormat::TimeSeconds);
	break;

    case TimingExplicitMsec:
	m_format.setTimingType(CSVFormat::ExplicitTiming);
	m_format.setTimeUnits(CSVFormat::TimeMilliseconds);
	break;

    case TimingExplicitSamples:
	m_format.setTimingType(CSVFormat::ExplicitTiming);
	m_format.setTimeUnits(CSVFormat::TimeAudioFrames);
	break;

    case TimingImplicit:
	m_format.setTimingType(CSVFormat::ImplicitTiming);
	m_format.setTimeUnits(CSVFormat::TimeWindows);
	break;
    }

    bool haveStartTime = false;
    bool haveDuration = false;
    bool havePitch = false;
    int valueCount = 0;

    for (int i = 0; i < m_columnPurposeCombos.size(); ++i) {

        QComboBox *thisCombo = m_columnPurposeCombos[i];
        
        CSVFormat::ColumnPurpose purpose = (CSVFormat::ColumnPurpose)
            (thisCombo->currentIndex());

        if (purpose == CSVFormat::ColumnStartTime) {
            haveStartTime = true;
        }
        if (purpose == CSVFormat::ColumnEndTime ||
            purpose == CSVFormat::ColumnDuration) {
            haveDuration = true;
        }
        if (purpose == CSVFormat::ColumnPitch) {
            havePitch = true;
        }
        if (purpose == CSVFormat::ColumnValue) {
            ++valueCount;
        }

        m_format.setColumnPurpose(i, purpose);

        if (i == m_fuzzyColumn) {
            for (int j = i + 1; j < m_format.getColumnCount(); ++j) {
                if (purpose == CSVFormat::ColumnUnknown) {
                    m_format.setColumnPurpose(j, CSVFormat::ColumnUnknown);
                } else { // Value
                    m_format.setColumnPurpose(j, CSVFormat::ColumnValue);
                    ++valueCount;
                }
            }
        }
    }

    if (haveStartTime && haveDuration) {
        if (havePitch) {
            m_format.setModelType(CSVFormat::TwoDimensionalModelWithDurationAndPitch);
        } else {
            m_format.setModelType(CSVFormat::TwoDimensionalModelWithDuration);
        }
    } else {
        if (valueCount > 1) {
            m_format.setModelType(CSVFormat::ThreeDimensionalModel);
        } else if (valueCount > 0) {
            m_format.setModelType(CSVFormat::TwoDimensionalModel);
        } else {
            m_format.setModelType(CSVFormat::OneDimensionalModel);
        }
    }

    updateModelLabel();
}