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#include <Variable/Variable.h>
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#include <Variable/VariableController.h>
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#include <Variable/VariableModel.h>
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#include <Common/DateUtils.h>
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#include <Common/MimeTypesDef.h>
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#include <Common/StringUtils.h>
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#include <Data/IDataSeries.h>
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#include <DataSource/DataSourceController.h>
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#include <Time/TimeController.h>
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#include <QMimeData>
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#include <QSize>
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#include <QTimer>
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#include <unordered_map>
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Q_LOGGING_CATEGORY(LOG_VariableModel, "VariableModel")
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namespace {
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// Column indexes
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const auto NAME_COLUMN = 0;
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const auto TSTART_COLUMN = 1;
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const auto TEND_COLUMN = 2;
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const auto NBPOINTS_COLUMN = 3;
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const auto UNIT_COLUMN = 4;
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const auto MISSION_COLUMN = 5;
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const auto PLUGIN_COLUMN = 6;
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const auto NB_COLUMNS = 7;
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// Column properties
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const auto DEFAULT_HEIGHT = 25;
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const auto DEFAULT_WIDTH = 100;
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struct ColumnProperties {
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ColumnProperties(const QString &name = {}, int width = DEFAULT_WIDTH,
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int height = DEFAULT_HEIGHT)
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: m_Name{name}, m_Width{width}, m_Height{height}
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{
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}
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QString m_Name;
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int m_Width;
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int m_Height;
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};
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const auto COLUMN_PROPERTIES = QHash<int, ColumnProperties>{
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{NAME_COLUMN, {QObject::tr("Name")}}, {TSTART_COLUMN, {QObject::tr("tStart"), 180}},
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{TEND_COLUMN, {QObject::tr("tEnd"), 180}}, {NBPOINTS_COLUMN, {QObject::tr("Nb points")}},
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{UNIT_COLUMN, {QObject::tr("Unit")}}, {MISSION_COLUMN, {QObject::tr("Mission")}},
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{PLUGIN_COLUMN, {QObject::tr("Plugin")}}};
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/// Format for datetimes
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const auto DATETIME_FORMAT = QStringLiteral("dd/MM/yyyy \nhh:mm:ss:zzz");
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QString uniqueName(const QString &defaultName,
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const std::vector<std::shared_ptr<Variable> > &variables)
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{
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auto forbiddenNames = std::vector<QString>(variables.size());
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std::transform(variables.cbegin(), variables.cend(), forbiddenNames.begin(),
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[](const auto &variable) { return variable->name(); });
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auto uniqueName = StringUtils::uniqueName(defaultName, forbiddenNames);
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Q_ASSERT(!uniqueName.isEmpty());
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return uniqueName;
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}
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} // namespace
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struct VariableModel::VariableModelPrivate {
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/// Variables created in SciQlop
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std::vector<std::shared_ptr<Variable> > m_Variables;
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std::unordered_map<std::shared_ptr<Variable>, double> m_VariableToProgress;
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VariableController *m_VariableController;
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/// Return the row index of the variable. -1 if it's not found
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int indexOfVariable(Variable *variable) const noexcept;
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};
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VariableModel::VariableModel(VariableController *parent)
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: QAbstractTableModel{parent}, impl{spimpl::make_unique_impl<VariableModelPrivate>()}
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{
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impl->m_VariableController = parent;
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}
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void VariableModel::addVariable(std::shared_ptr<Variable> variable) noexcept
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{
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auto insertIndex = rowCount();
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beginInsertRows({}, insertIndex, insertIndex);
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// Generates unique name for the variable
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variable->setName(uniqueName(variable->name(), impl->m_Variables));
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impl->m_Variables.push_back(variable);
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connect(variable.get(), &Variable::updated, this, &VariableModel::onVariableUpdated);
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endInsertRows();
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}
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bool VariableModel::containsVariable(std::shared_ptr<Variable> variable) const noexcept
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{
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auto end = impl->m_Variables.cend();
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return std::find(impl->m_Variables.cbegin(), end, variable) != end;
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}
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std::shared_ptr<Variable> VariableModel::createVariable(const QString &name,
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const QVariantHash &metadata) noexcept
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{
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auto variable = std::make_shared<Variable>(name, metadata);
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addVariable(variable);
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return variable;
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}
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void VariableModel::deleteVariable(std::shared_ptr<Variable> variable) noexcept
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{
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if (!variable) {
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qCCritical(LOG_Variable()) << "Can't delete a null variable from the model";
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return;
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}
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// Finds variable in the model
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auto begin = impl->m_Variables.cbegin();
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auto end = impl->m_Variables.cend();
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auto it = std::find(begin, end, variable);
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if (it != end) {
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auto removeIndex = std::distance(begin, it);
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// Deletes variable
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beginRemoveRows({}, removeIndex, removeIndex);
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impl->m_Variables.erase(it);
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endRemoveRows();
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}
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else {
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qCritical(LOG_VariableModel())
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<< tr("Can't delete variable %1 from the model: the variable is not in the model")
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.arg(variable->name());
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}
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// Removes variable from progress map
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impl->m_VariableToProgress.erase(variable);
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}
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std::shared_ptr<Variable> VariableModel::variable(int index) const
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{
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return (index >= 0u && static_cast<size_t>(index) < impl->m_Variables.size())
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? impl->m_Variables[index]
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: nullptr;
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}
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std::vector<std::shared_ptr<Variable> > VariableModel::variables() const
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{
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return impl->m_Variables;
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}
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void VariableModel::setDataProgress(std::shared_ptr<Variable> variable, double progress)
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{
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if (progress > 0.0) {
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impl->m_VariableToProgress[variable] = progress;
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}
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else {
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impl->m_VariableToProgress.erase(variable);
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}
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auto modelIndex = createIndex(impl->indexOfVariable(variable.get()), NAME_COLUMN);
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emit dataChanged(modelIndex, modelIndex);
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}
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int VariableModel::columnCount(const QModelIndex &parent) const
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{
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Q_UNUSED(parent);
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return NB_COLUMNS;
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}
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int VariableModel::rowCount(const QModelIndex &parent) const
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{
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Q_UNUSED(parent);
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return impl->m_Variables.size();
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}
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QVariant VariableModel::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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}
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if (index.row() < 0 || index.row() >= rowCount()) {
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return QVariant{};
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}
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if (role == Qt::DisplayRole) {
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if (auto variable = impl->m_Variables.at(index.row()).get()) {
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switch (index.column()) {
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case NAME_COLUMN:
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return variable->name();
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case TSTART_COLUMN: {
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auto range = variable->realRange();
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return range != INVALID_RANGE
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? DateUtils::dateTime(range.m_TStart).toString(DATETIME_FORMAT)
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: QVariant{};
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}
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case TEND_COLUMN: {
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auto range = variable->realRange();
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return range != INVALID_RANGE
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? DateUtils::dateTime(range.m_TEnd).toString(DATETIME_FORMAT)
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: QVariant{};
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}
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case NBPOINTS_COLUMN:
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return variable->nbPoints();
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case UNIT_COLUMN:
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return variable->metadata().value(QStringLiteral("units"));
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case MISSION_COLUMN:
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return variable->metadata().value(QStringLiteral("mission"));
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case PLUGIN_COLUMN:
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return variable->metadata().value(QStringLiteral("plugin"));
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default:
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// No action
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break;
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}
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qWarning(LOG_VariableModel())
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<< tr("Can't get data (unknown column %1)").arg(index.column());
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}
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else {
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qWarning(LOG_VariableModel()) << tr("Can't get data (no variable)");
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}
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}
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else if (role == VariableRoles::ProgressRole) {
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if (auto variable = impl->m_Variables.at(index.row())) {
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auto it = impl->m_VariableToProgress.find(variable);
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if (it != impl->m_VariableToProgress.cend()) {
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return it->second;
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}
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}
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}
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return QVariant{};
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}
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QVariant VariableModel::headerData(int section, Qt::Orientation orientation, int role) const
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{
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if (role != Qt::DisplayRole && role != Qt::SizeHintRole) {
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return QVariant{};
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}
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if (orientation == Qt::Horizontal) {
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auto propertiesIt = COLUMN_PROPERTIES.find(section);
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if (propertiesIt != COLUMN_PROPERTIES.cend()) {
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// Role is either DisplayRole or SizeHintRole
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return (role == Qt::DisplayRole)
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? QVariant{propertiesIt->m_Name}
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: QVariant{QSize{propertiesIt->m_Width, propertiesIt->m_Height}};
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}
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else {
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qWarning(LOG_VariableModel())
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<< tr("Can't get header data (unknown column %1)").arg(section);
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}
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}
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return QVariant{};
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}
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Qt::ItemFlags VariableModel::flags(const QModelIndex &index) const
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{
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return QAbstractTableModel::flags(index) | Qt::ItemIsDragEnabled | Qt::ItemIsDropEnabled;
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}
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Qt::DropActions VariableModel::supportedDropActions() const
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{
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return Qt::CopyAction | Qt::MoveAction;
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}
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Qt::DropActions VariableModel::supportedDragActions() const
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{
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return Qt::CopyAction | Qt::MoveAction;
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}
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QStringList VariableModel::mimeTypes() const
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{
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return {MIME_TYPE_VARIABLE_LIST, MIME_TYPE_TIME_RANGE};
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}
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QMimeData *VariableModel::mimeData(const QModelIndexList &indexes) const
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{
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auto mimeData = new QMimeData;
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QList<std::shared_ptr<Variable> > variableList;
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SqpRange firstTimeRange;
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for (const auto &index : indexes) {
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if (index.column() == 0) { // only the first column
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auto variable = impl->m_Variables.at(index.row());
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if (variable.get() && index.isValid()) {
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if (variableList.isEmpty()) {
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// Gets the range of the first variable
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firstTimeRange = std::move(variable->range());
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}
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variableList << variable;
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}
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}
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}
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auto variablesEncodedData = impl->m_VariableController->mimeDataForVariables(variableList);
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mimeData->setData(MIME_TYPE_VARIABLE_LIST, variablesEncodedData);
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if (variableList.count() == 1) {
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// No time range MIME data if multiple variables are dragged
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auto timeEncodedData = TimeController::mimeDataForTimeRange(firstTimeRange);
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mimeData->setData(MIME_TYPE_TIME_RANGE, timeEncodedData);
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}
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return mimeData;
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}
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bool VariableModel::canDropMimeData(const QMimeData *data, Qt::DropAction action, int row,
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int column, const QModelIndex &parent) const
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{
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// drop of a product
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return data->hasFormat(MIME_TYPE_PRODUCT_LIST)
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|| (data->hasFormat(MIME_TYPE_TIME_RANGE) && parent.isValid()
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&& !data->hasFormat(MIME_TYPE_VARIABLE_LIST));
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}
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bool VariableModel::dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column,
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const QModelIndex &parent)
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{
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auto dropDone = false;
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if (data->hasFormat(MIME_TYPE_PRODUCT_LIST)) {
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auto productList
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= DataSourceController::productsDataForMimeData(data->data(MIME_TYPE_PRODUCT_LIST));
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for (auto metaData : productList) {
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emit requestVariable(metaData.toHash());
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}
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dropDone = true;
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}
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else if (data->hasFormat(MIME_TYPE_TIME_RANGE) && parent.isValid()) {
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auto variable = this->variable(parent.row());
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auto range = TimeController::timeRangeForMimeData(data->data(MIME_TYPE_TIME_RANGE));
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emit requestVariableRangeUpdate(variable, range);
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dropDone = true;
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}
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return dropDone;
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}
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void VariableModel::abortProgress(const QModelIndex &index)
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{
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if (auto variable = impl->m_Variables.at(index.row())) {
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emit abortProgessRequested(variable);
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}
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}
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void VariableModel::onVariableUpdated() noexcept
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{
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// Finds variable that has been updated in the model
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if (auto updatedVariable = dynamic_cast<Variable *>(sender())) {
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auto updatedVariableIndex = impl->indexOfVariable(updatedVariable);
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if (updatedVariableIndex > -1) {
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emit dataChanged(createIndex(updatedVariableIndex, 0),
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createIndex(updatedVariableIndex, columnCount() - 1));
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}
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}
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}
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int VariableModel::VariableModelPrivate::indexOfVariable(Variable *variable) const noexcept
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{
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auto begin = std::cbegin(m_Variables);
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auto end = std::cend(m_Variables);
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auto it
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= std::find_if(begin, end, [variable](const auto &var) { return var.get() == variable; });
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if (it != end) {
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// Gets the index of the variable in the model: we assume here that views have the same
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// order as the model
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return std::distance(begin, it);
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}
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else {
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return -1;
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}
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}
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