RealDataTreeModel Class Reference

Description

Tree model for real data item selection. Used for the tree in the import view.

Definition at line 25 of file RealDataTreeModel.h.

Inheritance diagram for RealDataTreeModel:

Collaboration diagram for RealDataTreeModel:

Public Member Functions
	RealDataTreeModel (QObject *parent, RealDataModel *model)
int	columnCount (const QModelIndex &parent=QModelIndex()) const override
QVariant	data (const QModelIndex &index, int role=Qt::DisplayRole) const override
Qt::ItemFlags	flags (const QModelIndex &index) const override
QModelIndex	index (int row, int column, const QModelIndex &parent=QModelIndex()) const override
QModelIndex	indexForItem (RealDataItem *item) const
QModelIndex	indexOfHeadline (int rank) const
RealDataItem *	insertDataItem (int rank)
RealDataItem *	insertIntensityDataItem ()
RealDataItem *	insertSpecularDataItem ()
bool	isHeadline (const QModelIndex &index) const
RealDataItem *	itemForIndex (const QModelIndex &index) const
QModelIndex	parent (const QModelIndex &index) const override
void	refreshAfterModelChange ()
void	removeItem (RealDataItem *item)
int	rowCount (const QModelIndex &parent=QModelIndex()) const override
bool	setData (const QModelIndex &index, const QVariant &value, int role) override
void	setVisibleRanks (QSet< int > visibleRanks)
RealDataItem *	topMostItem () const
	The topmost visible item. Can be null of course. More...

Private Member Functions
void	clear ()
void	onContentsProcessed (RealDataItem *item)
void	updateSubscriptions ()

Private Attributes
QVector< RealDataItem * >	m_items [2]
RealDataModel *	m_model = nullptr
QSet< int >	m_visibleRanks

Constructor & Destructor Documentation

RealDataTreeModel()

RealDataTreeModel::RealDataTreeModel ( QObject *  parent, RealDataModel *  model  )

explicit

Definition at line 23 of file RealDataTreeModel.cpp.

    : QAbstractItemModel(parent)
    , m_model(model)
    , m_visibleRanks({1, 2})
{
    for (auto rank : m_visibleRanks)
        m_items[rank - 1] = model->realDataItems(rank);
 
    updateSubscriptions();
 
    connect(m_model, &RealDataModel::modelAboutToBeReset, this, &RealDataTreeModel::clear,
            Qt::UniqueConnection);
}

Member Function Documentation

clear()

void RealDataTreeModel::clear ( )

private

Definition at line 65 of file RealDataTreeModel.cpp.

{
    beginResetModel();
    m_items[0].clear();
    m_items[1].clear();
    endResetModel();
    updateSubscriptions();
}

References m_items, and updateSubscriptions().

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columnCount()

int RealDataTreeModel::columnCount ( const QModelIndex &  parent = QModelIndex() ) const

override

Definition at line 171 of file RealDataTreeModel.cpp.

{
    return 1;
}

data()

QVariant RealDataTreeModel::data ( const QModelIndex &  index, int  role = Qt::DisplayRole  ) const

override

Definition at line 189 of file RealDataTreeModel.cpp.

{
    if (isHeadline(index)) {
        QString title = (index == indexOfHeadline(1)) ? "1D Data" : "2D Data";
        if (m_visibleRanks.size() < 2)
            title = "Data";
 
        switch (role) {
        case Qt::DisplayRole:
            return title;
 
        case Qt::FontRole: {
            QFont f(QApplication::font());
            f.setPointSize(f.pointSize() * 1.5);
            f.setBold(true);
            return f;
        }
 
        case Qt::SizeHintRole: {
            QFont f(QApplication::font());
            f.setPointSize(f.pointSize() * 1.5);
            f.setBold(true);
            QSize s = QFontMetrics(f).boundingRect(title).size();
            return QSize(s.width() * 2, s.height() * 2);
        }
 
        case Qt::TextAlignmentRole:
            return QVariant(Qt::AlignLeft | Qt::AlignVCenter);
 
        case Qt::BackgroundRole:
            return appSettings->styleSheetPalette().headlineBackground;
 
        case Qt::ForegroundRole:
            return appSettings->styleSheetPalette().headlineText;
 
        default:
            return QVariant();
        }
    }
 
    auto* const item = itemForIndex(index);
 
    if (role == Qt::ToolTipRole)
        return QString();
 
    if (role == Qt::DecorationRole) {
        if (item->isSpecularData())
            return item->hasImportErrors() ? QIcon(":/images/warning_16x16.png")
                                           : QIcon(":/images/1D_OK.png");
        return QIcon(":/images/2D_OK.png");
    }
 
    if (role == Qt::DisplayRole) {
        const auto numErrors =
            (item->dataLoader() != nullptr) ? item->dataLoader()->numErrors() : 0;
 
        if (numErrors == 0)
            return item->dataName();
        if (numErrors == 1)
            return item->dataName() + " (1 parser warning)";
        return item->dataName() + QString(" (%1 parser warnings)").arg(numErrors);
    }
 
    if (role == Qt::EditRole)
        return item->dataName();
 
    return QVariant();
}

References appSettings, ApplicationSettings::Palette::headlineBackground, ApplicationSettings::Palette::headlineText, index(), indexOfHeadline(), isHeadline(), itemForIndex(), m_visibleRanks, and ApplicationSettings::styleSheetPalette().

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flags()

Qt::ItemFlags RealDataTreeModel::flags ( const QModelIndex &  index ) const

override

Definition at line 258 of file RealDataTreeModel.cpp.

{
    if (isHeadline(index) || !index.isValid())
        return Qt::NoItemFlags;
 
    auto f = QAbstractItemModel::flags(index);
    f |= Qt::ItemIsSelectable | Qt::ItemIsEnabled | Qt::ItemIsDragEnabled;
 
    if (index.column() == 0) // col 0 contains name of the data entry
        f |= Qt::ItemIsEditable;
 
    return f;
}

References index(), and isHeadline().

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index()

QModelIndex RealDataTreeModel::index ( int  row, int  column, const QModelIndex &  parent = QModelIndex()  ) const

override

Definition at line 142 of file RealDataTreeModel.cpp.

{
    if (!hasIndex(row, column, parent))
        return QModelIndex();
 
    if (!parent.isValid())
        return createIndex(row, column, nullptr);
 
    for (auto rank : m_visibleRanks)
        if (parent == indexOfHeadline(rank))
            return createIndex(row, column, m_items[rank - 1][row]);
 
    return QModelIndex();
}

References indexOfHeadline(), m_items, m_visibleRanks, and parent().

Referenced by data(), flags(), indexForItem(), isHeadline(), itemForIndex(), onContentsProcessed(), parent(), removeItem(), and setData().

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indexForItem()

QModelIndex RealDataTreeModel::indexForItem

(

RealDataItem *

item

)

const

Definition at line 294 of file RealDataTreeModel.cpp.

{
    if (item == nullptr)
        return QModelIndex();
 
    const int rank = item->isSpecularData() ? 1 : 2;
    if (m_visibleRanks.contains(rank))
        if (auto index = m_items[rank - 1].indexOf(item); index >= 0)
            return createIndex(index, 0, item);
 
    return QModelIndex();
}

References index(), RealDataItem::isSpecularData(), m_items, and m_visibleRanks.

Referenced by onContentsProcessed(), removeItem(), and RealDataSelectorWidget::setCurrentItem().

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indexOfHeadline()

QModelIndex RealDataTreeModel::indexOfHeadline

(

int

rank

)

const

Definition at line 126 of file RealDataTreeModel.cpp.

{
    if (!m_visibleRanks.contains(rank))
        return QModelIndex();
 
    if (rank == 1)
        return createIndex(0, 0, nullptr);
 
    if (rank == 2) {
        const bool has1D = m_visibleRanks.contains(1);
        return createIndex(has1D ? 1 : 0, 0, nullptr);
    }
 
    return QModelIndex();
}

References m_visibleRanks.

Referenced by data(), RealDataSelectorWidget::getOverlayActions(), index(), insertDataItem(), parent(), refreshAfterModelChange(), removeItem(), and rowCount().

insertDataItem()

RealDataItem * RealDataTreeModel::insertDataItem

(

int

rank

)

Definition at line 103 of file RealDataTreeModel.cpp.

{
    auto* newItem = m_model->insertDataItem(rank);
    if (!m_visibleRanks.contains(rank))
        return newItem;
 
    const int rowOfItem = m_model->realDataItems(rank).indexOf(newItem);
    beginInsertRows(indexOfHeadline(rank), rowOfItem, rowOfItem);
    m_items[rank - 1] = m_model->realDataItems(rank);
    endInsertRows();
    updateSubscriptions();
    return newItem;
}

References indexOfHeadline(), RealDataModel::insertDataItem(), m_items, m_model, m_visibleRanks, RealDataModel::realDataItems(), and updateSubscriptions().

Referenced by insertIntensityDataItem(), and insertSpecularDataItem().

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insertIntensityDataItem()

RealDataItem * RealDataTreeModel::insertIntensityDataItem

(

)

Definition at line 98 of file RealDataTreeModel.cpp.

{
    return insertDataItem(2);
}

References insertDataItem().

Referenced by RealDataSelectorWidget::importData2D().

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insertSpecularDataItem()

RealDataItem * RealDataTreeModel::insertSpecularDataItem

(

)

Definition at line 93 of file RealDataTreeModel.cpp.

{
    return insertDataItem(1);
}

References insertDataItem().

Referenced by RealDataSelectorWidget::importData1D().

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isHeadline()

bool RealDataTreeModel::isHeadline

(

const QModelIndex &

index

)

const

Definition at line 307 of file RealDataTreeModel.cpp.

{
    if (!index.isValid())
        return false;
 
    return index.internalPointer() == nullptr;
}

References index().

Referenced by data(), flags(), and RealDataSelectorWidget::getOverlayActions().

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itemForIndex()

RealDataItem * RealDataTreeModel::itemForIndex

(

const QModelIndex &

index

)

const

Definition at line 286 of file RealDataTreeModel.cpp.

{
    if (!index.isValid())
        return nullptr;
 
    return reinterpret_cast<RealDataItem*>(index.internalPointer());
}

References index().

Referenced by RealDataSelectorWidget::currentItem(), data(), RealDataSelectorWidget::getOverlayActions(), RealDataSelectorWidget::onContextMenuRequest(), parent(), and setData().

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onContentsProcessed()

void RealDataTreeModel::onContentsProcessed ( RealDataItem *  item )

private

Definition at line 326 of file RealDataTreeModel.cpp.

{
    QModelIndex index = indexForItem(item);
    emit dataChanged(index, index);
}

References index(), and indexForItem().

Referenced by updateSubscriptions().

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parent()

QModelIndex RealDataTreeModel::parent ( const QModelIndex &  index ) const

override

Definition at line 157 of file RealDataTreeModel.cpp.

{
    if (!index.isValid())
        return QModelIndex();
 
    if (index.internalPointer() == nullptr) // index is headline => no parent
        return QModelIndex();
 
    if (itemForIndex(index)->isSpecularData())
        return indexOfHeadline(1);
 
    return indexOfHeadline(2);
}

References index(), indexOfHeadline(), and itemForIndex().

Referenced by index(), and rowCount().

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refreshAfterModelChange()

void RealDataTreeModel::refreshAfterModelChange

(

)

Definition at line 52 of file RealDataTreeModel.cpp.

{
    for (auto rank : m_visibleRanks) {
        if (!m_items[rank - 1].isEmpty()) {
            beginRemoveRows(indexOfHeadline(rank), 0, m_items[rank - 1].size() - 1);
            m_items[rank - 1] = m_model->realDataItems(rank);
            endRemoveRows();
        }
    }
 
    updateSubscriptions();
}

References indexOfHeadline(), m_items, m_model, m_visibleRanks, RealDataModel::realDataItems(), and updateSubscriptions().

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removeItem()

void RealDataTreeModel::removeItem

(

RealDataItem *

item

)

Definition at line 74 of file RealDataTreeModel.cpp.

{
    QModelIndex index = indexForItem(item);
    if (!index.isValid())
        return;
 
    if (item->dataLoader())
        item->dataLoader()->disconnect(this);
 
    const int rank = item->isSpecularData() ? 1 : 2;
    if (m_visibleRanks.contains(rank)) {
        const int rowOfItem = m_items[rank - 1].indexOf(item);
        beginRemoveRows(indexOfHeadline(rank), rowOfItem, rowOfItem);
        m_items[rank - 1].removeAll(item);
        m_model->remove(item);
        endRemoveRows();
    }
}

References RealDataItem::dataLoader(), index(), indexForItem(), indexOfHeadline(), RealDataItem::isSpecularData(), m_items, m_model, m_visibleRanks, and RealDataModel::remove().

Referenced by RealDataSelectorWidget::getOverlayActions(), RealDataSelectorWidget::importData1D(), RealDataSelectorWidget::importData2D(), and RealDataSelectorWidget::removeCurrentItem().

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rowCount()

int RealDataTreeModel::rowCount ( const QModelIndex &  parent = QModelIndex() ) const

override

Definition at line 176 of file RealDataTreeModel.cpp.

{
    if (!parent.isValid())
        return m_visibleRanks.size();
 
    // parent is a headline
    for (int rank : m_visibleRanks)
        if (parent == indexOfHeadline(rank))
            return m_items[rank - 1].size();
 
    return 0;
}

References indexOfHeadline(), m_items, m_visibleRanks, and parent().

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setData()

bool RealDataTreeModel::setData ( const QModelIndex &  index, const QVariant &  value, int  role  )

override

Definition at line 272 of file RealDataTreeModel.cpp.

{
    if (!index.isValid())
        return false;
 
    if (role == Qt::EditRole && index.column() == 0) {
        itemForIndex(index)->setDataName(value.toString());
        emit dataChanged(index, index);
        return true;
    }
 
    return false;
}

References index(), itemForIndex(), and RealDataItem::setDataName().

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setVisibleRanks()

void RealDataTreeModel::setVisibleRanks

(

QSet< int >

visibleRanks

)

Definition at line 37 of file RealDataTreeModel.cpp.

{
    if (m_visibleRanks == visibleRanks)
        return;
 
    m_visibleRanks = visibleRanks;
 
    beginResetModel();
    for (auto rank : m_visibleRanks)
        m_items[rank - 1] = m_model->realDataItems(rank);
    endResetModel();
 
    updateSubscriptions();
}

References m_items, m_model, m_visibleRanks, RealDataModel::realDataItems(), and updateSubscriptions().

Referenced by RealDataSelectorWidget::updateFunctionalities().

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topMostItem()

RealDataItem * RealDataTreeModel::topMostItem

(

)

const

The topmost visible item. Can be null of course.

Definition at line 117 of file RealDataTreeModel.cpp.

{
    if (!m_items[0].isEmpty() && m_visibleRanks.contains(1))
        return m_items[0].first();
    if (!m_items[1].isEmpty() && m_visibleRanks.contains(2))
        return m_items[1].first();
    return nullptr;
}

References m_items, and m_visibleRanks.

Referenced by RealDataSelectorWidget::RealDataSelectorWidget().

updateSubscriptions()

void RealDataTreeModel::updateSubscriptions ( )

private

Definition at line 315 of file RealDataTreeModel.cpp.

{
    for (auto* item : m_items[0])
        connect(item, &RealDataItem::importContentsProcessed, this,
                [=]() { onContentsProcessed(item); });
 
    for (auto* item : m_items[1])
        connect(item, &RealDataItem::importContentsProcessed, this,
                [=]() { onContentsProcessed(item); });
}

References RealDataItem::importContentsProcessed(), m_items, and onContentsProcessed().

Referenced by clear(), insertDataItem(), refreshAfterModelChange(), and setVisibleRanks().

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Member Data Documentation

m_items

QVector<RealDataItem*> RealDataTreeModel::m_items[2]

private

Definition at line 62 of file RealDataTreeModel.h.

Referenced by clear(), index(), indexForItem(), insertDataItem(), refreshAfterModelChange(), removeItem(), rowCount(), setVisibleRanks(), topMostItem(), and updateSubscriptions().

m_model

RealDataModel* RealDataTreeModel::m_model = nullptr

private

Definition at line 61 of file RealDataTreeModel.h.

Referenced by insertDataItem(), refreshAfterModelChange(), removeItem(), and setVisibleRanks().

m_visibleRanks

QSet<int> RealDataTreeModel::m_visibleRanks

private

Definition at line 63 of file RealDataTreeModel.h.

Referenced by data(), index(), indexForItem(), indexOfHeadline(), insertDataItem(), refreshAfterModelChange(), removeItem(), rowCount(), setVisibleRanks(), and topMostItem().

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The documentation for this class was generated from the following files:

• /home/build/builds/o5h8MZZm/0/mlz/bornagain/GUI/View/Import/RealDataTreeModel.h
• /home/build/builds/o5h8MZZm/0/mlz/bornagain/GUI/View/Import/RealDataTreeModel.cpp