diff widgets/CSVExportDialog.cpp @ 1568:3943553b95b0 csv-export-dialog

Add CSV export dialog, + associated supporting changes

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widgets/CSVExportDialog.cpp	Tue Jan 14 15:41:17 2020 +0000
@@ -0,0 +1,233 @@
+/* -*- 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 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 "CSVExportDialog.h"
+
+#include "view/ViewManager.h"
+
+#include <QVBoxLayout>
+#include <QGridLayout>
+#include <QGroupBox>
+#include <QLabel>
+#include <QDialogButtonBox>
+#include <QRadioButton>
+#include <QButtonGroup>
+#include <QCheckBox>
+#include <QComboBox>
+
+#include <vector>
+
+using namespace std;
+
+//!!! todo: remember & re-apply last set of options chosen for this layer type
+
+CSVExportDialog::CSVExportDialog(Configuration config, QWidget *parent) :
+    QDialog(parent),
+    m_config(config)
+{
+    setWindowTitle(tr("Export Layer"));
+
+    QString intro = tr("Exporting layer \"%1\" to %2 file.")
+        .arg(config.layerName)
+        .arg(config.fileExtension.toUpper());
+
+    QVBoxLayout *vbox = new QVBoxLayout;
+    
+    QLabel *label = new QLabel(intro);
+    vbox->addWidget(label);
+
+    int space = ViewManager::scalePixelSize(2);
+
+    vbox->addSpacing(space);
+    
+    QGroupBox *rowColGroup = new QGroupBox(tr("Row and column options:"));
+    QGridLayout *rowColLayout = new QGridLayout;
+    rowColGroup->setLayout(rowColLayout);
+
+    vector<pair<QString, QChar>> separators {
+        { tr("Comma"), ',' },
+        { tr("Tab"), '\t' },
+        { tr("Space"), ' ' },
+        { tr("Pipe"), '|' },
+        { tr("Slash"), '/' },
+        { tr("Colon"), ':' }
+    };
+    
+    QChar defaultSeparator = ',';
+    if (m_config.fileExtension != "csv") {
+        defaultSeparator = '\t';
+    }
+    
+    rowColLayout->addWidget(new QLabel(tr("Column separator:"), 0, 0));
+    m_separatorCombo = new QComboBox;
+    for (auto p: separators) {
+        if (p.second == '\t' || p.second == ' ') {
+            m_separatorCombo->addItem(p.first, p.second);
+        } else {
+            m_separatorCombo->addItem(tr("%1 '%2'").arg(p.first).arg(p.second),
+                                      p.second);
+        }
+        if (p.second == defaultSeparator) {
+            m_separatorCombo->setCurrentIndex(m_separatorCombo->count()-1);
+        }
+    }
+    m_separatorCombo->setEditable(false);
+    rowColLayout->addWidget(m_separatorCombo, 0, 1);
+    rowColLayout->setColumnStretch(2, 10);
+
+    m_header = new QCheckBox
+        (tr("Include a header row before the data rows"));
+    m_timestamps = new QCheckBox
+        (tr("Include a timestamp column before the data columns"));
+    rowColLayout->addWidget(m_header, 1, 0, 1, 3);
+    rowColLayout->addWidget(m_timestamps, 2, 0, 1, 3);
+    
+    if (!m_config.isDense) {
+        m_timestamps->setChecked(true);
+        m_timestamps->setEnabled(false);
+    }
+
+    vbox->addWidget(rowColGroup);
+    
+    vbox->addSpacing(space);
+    
+    QGroupBox *framesGroup = new QGroupBox
+        (tr("Timing format:"));
+
+    m_seconds = new QRadioButton
+        (tr("Write times in seconds"));
+    m_frames = new QRadioButton
+        (tr("Write times in audio sample frames"));
+    m_seconds->setChecked(true);
+
+    QVBoxLayout *framesLayout = new QVBoxLayout;
+    framesLayout->addWidget(m_seconds);
+    framesLayout->addWidget(m_frames);
+    framesGroup->setLayout(framesLayout);
+    vbox->addWidget(framesGroup);
+    
+    vbox->addSpacing(space);
+
+    if (m_config.isDense) {
+        m_seconds->setEnabled(false);
+        m_frames->setEnabled(false);
+    }
+    
+    QGroupBox *rangeGroup = new QGroupBox
+        (tr("Range to export:"));
+
+    QButtonGroup *selectionGroup = new QButtonGroup(rangeGroup);
+    QButtonGroup *viewGroup = new QButtonGroup(rangeGroup);
+    
+    m_selectionOnly = new QRadioButton
+        (tr("Export only the current selection"));
+    QRadioButton *fullDuration = new QRadioButton
+        (tr("Export the full duration of the model"));
+
+    selectionGroup->addButton(m_selectionOnly);
+    selectionGroup->addButton(fullDuration);
+
+    if (m_config.haveSelection) {
+        m_selectionOnly->setChecked(true);
+    } else {
+        m_selectionOnly->setEnabled(false);
+        fullDuration->setEnabled(false);
+        fullDuration->setChecked(true);
+    }
+
+    QVBoxLayout *rangeLayout = new QVBoxLayout;
+    rangeLayout->addWidget(m_selectionOnly);
+    rangeLayout->addWidget(fullDuration);
+
+    if (m_config.haveView && m_config.isDense) {
+
+        m_viewOnly = new QRadioButton
+            (tr("Export only the height of the visible view"));
+        QRadioButton *fullHeight = new QRadioButton
+            (tr("Export the full height of the model"));
+
+        viewGroup->addButton(m_viewOnly);
+        viewGroup->addButton(fullHeight);
+
+        m_viewOnly->setChecked(true);
+    
+        rangeLayout->addSpacing(space);
+    
+        rangeLayout->addWidget(m_viewOnly);
+        rangeLayout->addWidget(fullHeight);
+
+    } else {
+        m_viewOnly = nullptr;
+    }
+
+    rangeGroup->setLayout(rangeLayout);
+    vbox->addWidget(rangeGroup);
+    
+    vbox->addSpacing(space);
+    
+    QDialogButtonBox *bb = new QDialogButtonBox(QDialogButtonBox::Ok |
+                                                QDialogButtonBox::Cancel);
+    vbox->addWidget(bb);
+    connect(bb, SIGNAL(accepted()), this, SLOT(accept()));
+    connect(bb, SIGNAL(rejected()), this, SLOT(reject()));
+
+    connect(m_timestamps, SIGNAL(toggled(bool)),
+            this, SLOT(timestampsToggled(bool)));
+
+    setLayout(vbox);
+}
+
+void
+CSVExportDialog::timestampsToggled(bool on)
+{
+    m_seconds->setEnabled(on);
+    m_frames->setEnabled(on);
+}
+
+QString
+CSVExportDialog::getDelimiter() const
+{
+    return m_separatorCombo->currentData().toChar();
+}
+
+bool
+CSVExportDialog::shouldIncludeHeader() const
+{
+    return m_header && m_header->isChecked();
+}
+
+bool
+CSVExportDialog::shouldIncludeTimestamps() const
+{
+    return m_timestamps && m_timestamps->isChecked();
+}
+
+bool
+CSVExportDialog::shouldWriteTimeInFrames() const
+{
+    return shouldIncludeTimestamps() && m_frames && m_frames->isChecked();
+}
+
+bool
+CSVExportDialog::shouldConstrainToViewHeight() const
+{
+    return m_viewOnly && m_viewOnly->isChecked();
+}
+
+bool
+CSVExportDialog::shouldConstrainToSelection() const
+{
+    return m_selectionOnly && m_selectionOnly->isChecked();
+}
+