andre@2: #include "metadataview.h"
andre@2: #include "qxtcsvmodel.h"
andre@4: #include "filterwidget.h"
andre@2: 
andre@2: #include <QTextCodec>
andre@2: #include <QTableView>
andre@2: #include <QSortFilterProxyModel>
andre@2: #include <QVBoxLayout>
andre@2: #include <QLabel>
andre@2: #include <QDebug>
andre@2: #include <QHeaderView>
andre@2: #include <QModelIndex>
andre@2: #include <QItemSelectionModel>
andre@2: 
andre@2: MetaDataView::MetaDataView(QWidget *parent, Qt::WindowFlags f) :
andre@2:     QWidget(parent, f) {
andre@2:     /* Create models */
andre@2:     mSortModel = new QSortFilterProxyModel;
andre@2:     mCSVModel = new QxtCsvModel;
andre@2:     setupGUI();
andre@2: 
andre@2:     connect(mView->selectionModel(), &QItemSelectionModel::selectionChanged,
andre@2:             this, &MetaDataView::viewSelectionChanged);
andre@4:     connect(mSortModel, &QSortFilterProxyModel::dataChanged,
andre@4:             this, &MetaDataView::dataChanged);
andre@2:     return;
andre@2: }
andre@2: 
andre@2: void MetaDataView::setupGUI() {
andre@2:     QVBoxLayout *baseLayout = new QVBoxLayout;
andre@4: 
andre@4:     FilterWidget *filterWidget = new FilterWidget(mSortModel);
andre@4:     baseLayout->addWidget(filterWidget);
andre@4: 
andre@2:     mView = new QTableView;
andre@2:     mView->setModel(mSortModel);
andre@2: 
andre@2:     mView->horizontalHeader()->setStretchLastSection(true);
andre@2:     mView->resizeColumnsToContents();
andre@2: //    mView->setColumnWidth(0, 60);
andre@2:     mView->setSelectionBehavior(QAbstractItemView::SelectRows);
andre@2:     mView->setSelectionMode(QAbstractItemView::SingleSelection);
andre@2:     mView->setSortingEnabled(true);
andre@2:     mView->setEditTriggers(QAbstractItemView::NoEditTriggers);
andre@2: 
andre@2:     baseLayout->addWidget(mView);
andre@2: 
andre@2:     setLayout(baseLayout);
andre@2: }
andre@2: 
andre@2: QString MetaDataView::parseMetaData(const QString& filePath) {
andre@2:     mCSVModel->setSource(filePath, true, ';', QTextCodec::codecForName("UTF8"));
andre@2:     if (!mCSVModel->rowCount()) {
andre@2:         return tr("Failed to parse file: '%1'").arg(filePath);
andre@2:     }
andre@2: 
andre@2:     mSortModel->setSourceModel(mCSVModel);
andre@2:     qDebug() << "Parsed: " << mCSVModel->rowCount() << " rows.";
andre@2:     return QString();
andre@2: }
andre@2: 
andre@4: void MetaDataView::dataChanged()
andre@4: {
andre@4:     QItemSelectionModel *selection = mView->selectionModel();
andre@4:     QModelIndexList selected = selection->selectedIndexes();
andre@4: 
andre@4:     qDebug() << "Data Changed.";
andre@4:     if (selected.isEmpty()) {
andre@4:         /* Nothing selected still we need to emit this signal to update
andre@4:          * the viewer otherwise selection changed handles it. */
andre@4:         emit selectionChanged(QString(), 0, mSortModel->rowCount() - 1,
andre@4:                 QDateTime());
andre@4:     }
andre@4: }
andre@4: 
andre@2: void MetaDataView::viewSelectionChanged(const QItemSelection& selected,
andre@2:                                         const QItemSelection& deselected) {
andre@4:     if (selected.indexes().isEmpty()) {
andre@4:         /* Nothing selected */
andre@4:         return;
andre@4:     }
andre@2:     /* One row selected */
andre@2:     Q_ASSERT(selected.indexes().count() == mCSVModel->columnCount());
andre@2:     const QModelIndex idx = selected.indexes()[0];
andre@3:     const QString dateString = selected.indexes()[1].data().toString();
andre@3:     bool ok;
andre@3:     qint64 secondsSinceEpoch = dateString.toLongLong(&ok);
andre@3:     if (!ok) {
andre@3:         // TODO emit error
andre@3:         qDebug() << "Unparsable date.";
andre@3:     }
andre@3:     QDateTime timestamp = QDateTime::fromMSecsSinceEpoch(secondsSinceEpoch * 1000);
andre@3:     emit selectionChanged(idx.data().toString(), idx.row(), mSortModel->rowCount() - 1,
andre@3:             timestamp);
andre@2:     qDebug() << "Selection changed: " << idx.data();
andre@2: }
andre@2: 
andre@3: void MetaDataView::selectRow(int row) {
andre@3:     QItemSelectionModel *selection = mView->selectionModel();
andre@3:     if (!mSortModel->hasIndex(row, 0)) {
andre@3:         qDebug() << "Invalid row: " << row;
andre@3:         return;
andre@3:     }
andre@3:     QModelIndex newIdx = mSortModel->index(row, 0);
andre@3:     selection->select(newIdx, QItemSelectionModel::SelectCurrent | QItemSelectionModel::Rows);
andre@3: }
andre@3: 
andre@3: void MetaDataView::selectPrevRow() {
andre@3:     QItemSelectionModel *selection = mView->selectionModel();
andre@3:     QModelIndexList selected = selection->selectedIndexes();
andre@3:     int row = 0,
andre@3:         col = 0;
andre@3:     if (selected.isEmpty()) {
andre@3:         qDebug() << "Selection empty. Start at row 0";
andre@3:         if (!mSortModel->hasIndex(row, col)) {
andre@3:             qDebug() << "Empty model. Failed to advance.";
andre@3:             return;
andre@3:         }
andre@3:     } else {
andre@3:         QModelIndex old = selection->selectedIndexes().first();
andre@3:         if (!mSortModel->hasIndex(old.row() - 1, old.column())) {
andre@3:             qDebug() << "No less rows.";
andre@3:             return;
andre@3:         }
andre@3:         row = old.row() - 1;
andre@3:         col = old.column();
andre@3:     }
andre@3:     QModelIndex newIdx = mSortModel->index(row, col);
andre@3:     selection->select(newIdx, QItemSelectionModel::SelectCurrent | QItemSelectionModel::Rows);
andre@3: }
andre@3: 
andre@2: void MetaDataView::selectNextRow() {
andre@2:     QItemSelectionModel *selection = mView->selectionModel();
andre@2:     QModelIndexList selected = selection->selectedIndexes();
andre@2:     int row = 0,
andre@2:         col = 0;
andre@2:     if (selected.isEmpty()) {
andre@2:         qDebug() << "Selection empty. Start at row 0";
andre@2:         if (!mSortModel->hasIndex(row, col)) {
andre@2:             qDebug() << "Empty model. Failed to advance.";
andre@2:             return;
andre@2:         }
andre@2:     } else {
andre@2:         QModelIndex old = selection->selectedIndexes().first();
andre@2:         if (!mSortModel->hasIndex(old.row() + 1, old.column())) {
andre@2:             qDebug() << "No more rows.";
andre@2:             return;
andre@2:         }
andre@2:         row = old.row() + 1;
andre@2:         col = old.column();
andre@2:     }
andre@2:     QModelIndex newIdx = mSortModel->index(row, col);
andre@2:     selection->select(newIdx, QItemSelectionModel::SelectCurrent | QItemSelectionModel::Rows);
andre@2: }