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858a0aecba
The old code would construct and then initialize the object in a separate function, which added lots of complication. Just initialize the thing in the constructor, store a reference, not a pointer to the table. And do a few other code cleanups. The result is distinctly more pleasing. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
128 lines
3.7 KiB
C++
128 lines
3.7 KiB
C++
#include "divesiteimportmodel.h"
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#include "core/divelog.h"
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#include "core/qthelper.h"
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#include "core/range.h"
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#include "core/taxonomy.h"
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DivesiteImportedModel::DivesiteImportedModel(dive_site_table &table, QObject *o) : QAbstractTableModel(o),
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firstIndex(0),
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lastIndex(-1),
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importedSitesTable(table)
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{
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checkStates.resize(importedSitesTable.size());
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for (const auto &[row, item]: enumerated_range(importedSitesTable))
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checkStates[row] = !divelog.sites->get_by_gps(&item->location);
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}
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int DivesiteImportedModel::columnCount(const QModelIndex &) const
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{
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return 5;
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}
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int DivesiteImportedModel::rowCount(const QModelIndex &) const
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{
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return static_cast<int>(importedSitesTable.size());
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}
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QVariant DivesiteImportedModel::headerData(int section, Qt::Orientation orientation, int role) const
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{
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if (orientation == Qt::Vertical)
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return QVariant();
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if (role == Qt::DisplayRole) {
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switch (section) {
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case NAME:
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return tr("Name");
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case LOCATION:
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return tr("Location");
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case COUNTRY:
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return tr("Country");
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case NEAREST:
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return tr("Nearest\nExisting Site");
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case DISTANCE:
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return tr("Distance");
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}
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}
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return QVariant();
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}
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QVariant DivesiteImportedModel::data(const QModelIndex &index, int role) const
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{
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if (!index.isValid())
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return QVariant();
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if (index.row() < 0 || index.row() >= (int)importedSitesTable.size())
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return QVariant();
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struct dive_site *ds = importedSitesTable[index.row()].get();
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// widgets access the model via index.column()
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// Not supporting QML access via roles
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if (role == Qt::DisplayRole) {
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switch (index.column()) {
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case NAME:
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return QString::fromStdString(ds->name);
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case LOCATION:
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return printGPSCoords(&ds->location);
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case COUNTRY:
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return QString::fromStdString(taxonomy_get_country(ds->taxonomy));
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case NEAREST: {
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// 40075000 is circumference of the earth in meters
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struct dive_site *nearest_ds =
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divelog.sites->get_by_gps_proximity(ds->location, 40075000);
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if (nearest_ds)
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return QString::fromStdString(nearest_ds->name);
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else
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return QString();
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}
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case DISTANCE: {
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unsigned int distance = 0;
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struct dive_site *nearest_ds =
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divelog.sites->get_by_gps_proximity(ds->location, 40075000);
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if (nearest_ds)
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distance = get_distance(ds->location, nearest_ds->location);
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return distance_string(distance);
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}
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case SELECTED:
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return checkStates[index.row()];
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}
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}
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if (role == Qt::CheckStateRole) {
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if (index.column() == 0)
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return checkStates[index.row()] ? Qt::Checked : Qt::Unchecked;
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}
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return QVariant();
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}
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void DivesiteImportedModel::changeSelected(QModelIndex clickedIndex)
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{
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checkStates[clickedIndex.row()] = !checkStates[clickedIndex.row()];
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dataChanged(index(clickedIndex.row(), 0), index(clickedIndex.row(), 0), QVector<int> { Qt::CheckStateRole, SELECTED });
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}
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void DivesiteImportedModel::selectAll()
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{
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std::fill(checkStates.begin(), checkStates.end(), true);
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// Qt is mad: for empty lists, last index would be -1, but that makes it crash.
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dataChanged(index(0, 0), index(rowCount() - 1, 0), QVector<int> { Qt::CheckStateRole, SELECTED });
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}
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void DivesiteImportedModel::selectRow(int row)
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{
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checkStates[row] = !checkStates[row];
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dataChanged(index(row, 0), index(row, 0), QVector<int> { Qt::CheckStateRole, SELECTED });
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}
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void DivesiteImportedModel::selectNone()
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{
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std::fill(checkStates.begin(), checkStates.end(), false);
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// Qt is mad: for empty lists, last index would be -1, but that makes it crash.
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dataChanged(index(0, 0), index(rowCount() - 1, 0), QVector<int> { Qt::CheckStateRole, SELECTED });
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}
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Qt::ItemFlags DivesiteImportedModel::flags(const QModelIndex &index) const
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{
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if (index.column() != 0)
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return QAbstractTableModel::flags(index);
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return QAbstractTableModel::flags(index) | Qt::ItemIsUserCheckable;
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}
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