JsonTreeModel Class Reference

#include <jsontreemodel.h>

Inheritance diagram for JsonTreeModel:

Collaboration diagram for JsonTreeModel:

Public Member Functions
	JsonTreeModel (const QStringList &headers, const nlohmann::json &data, QObject *parent=0)
	~JsonTreeModel ()
QVariant	data (const QModelIndex &index, int role) const
QVariant	headerData (int section, Qt::Orientation orientation, int role=Qt::DisplayRole) const
QModelIndex	index (int row, int column, const QModelIndex &parent=QModelIndex()) const
QModelIndex	parent (const QModelIndex &index) const
int	rowCount (const QModelIndex &parent=QModelIndex()) const
int	columnCount (const QModelIndex &parent=QModelIndex()) const
Qt::ItemFlags	flags (const QModelIndex &index) const
bool	setData (const QModelIndex &index, const QVariant &value, int role=Qt::EditRole)
bool	setHeaderData (int section, Qt::Orientation orientation, const QVariant &value, int role=Qt::EditRole)
bool	insertColumns (int position, int columns, const QModelIndex &parent=QModelIndex())
bool	removeColumns (int position, int columns, const QModelIndex &parent=QModelIndex())
bool	insertRows (int position, int rows, const QModelIndex &parent=QModelIndex())
bool	removeRows (int position, int rows, const QModelIndex &parent=QModelIndex())
JsonTreeItem *	getRootItem ()

Private Member Functions
void	setupModelData (const nlohmann::json &lines, JsonTreeItem *parent)
QString	getTypeString (value_t vType)
JsonTreeItem *	getItem (const QModelIndex &index) const

Private Attributes
JsonTreeItem *	rootItem

Detailed Description

Definition at line 13 of file jsontreemodel.h.

Constructor & Destructor Documentation

JsonTreeModel()

JsonTreeModel::JsonTreeModel	(	const QStringList &	headers,
		const nlohmann::json &	data,
		QObject *	parent = 0
	)

Definition at line 8 of file jsontreemodel.cpp.

    : QAbstractItemModel(parent)
{
    QVector<QVariant> rootData;
    foreach (QString header, headers)
        rootData << header;
 
    rootItem = new JsonTreeItem(rootData);
    setupModelData(data, rootItem);
}

References data(), rootItem, and setupModelData().

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~JsonTreeModel()

JsonTreeModel::~JsonTreeModel

(

)

Definition at line 20 of file jsontreemodel.cpp.

{
    delete rootItem;
}

References rootItem.

Member Function Documentation

columnCount()

int JsonTreeModel::columnCount

(

const QModelIndex &

parent = QModelIndex()

)

const

Definition at line 25 of file jsontreemodel.cpp.

{
    return rootItem->columnCount();
}

References JsonTreeItem::columnCount(), and rootItem.

Referenced by JsonEditorMain::insertTreeChild().

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data()

QVariant JsonTreeModel::data	(	const QModelIndex &	index,
		int	role
	)		const

Definition at line 30 of file jsontreemodel.cpp.

{
    if (!index.isValid())
        return QVariant();
 
    if (role != Qt::DisplayRole && role != Qt::EditRole)
        return QVariant();
 
    JsonTreeItem *item = getItem(index);
 
    return item->data(index.column());
}

References JsonTreeItem::data(), getItem(), and index().

Referenced by JsonTreeModel(), and setupModelData().

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flags()

Qt::ItemFlags JsonTreeModel::flags

(

const QModelIndex &

index

)

const

Definition at line 43 of file jsontreemodel.cpp.

{
    if (!index.isValid())
        return 0;
 
    return Qt::ItemIsEditable | Qt::ItemIsEnabled | Qt::ItemIsSelectable;
}

References index().

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getItem()

JsonTreeItem * JsonTreeModel::getItem ( const QModelIndex &  index ) const

private

Definition at line 51 of file jsontreemodel.cpp.

{
    if (index.isValid()) {
        JsonTreeItem *item = static_cast<JsonTreeItem*>(index.internalPointer());
        if (item) return item;
    }
    return rootItem;
}

References index(), and rootItem.

Referenced by data(), index(), insertRows(), parent(), removeRows(), rowCount(), and setData().

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getRootItem()

JsonTreeItem * JsonTreeModel::getRootItem

(

)

Definition at line 260 of file jsontreemodel.cpp.

{
    return rootItem;
}

References rootItem.

Referenced by JsonEditorMain::formatCode().

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getTypeString()

QString JsonTreeModel::getTypeString ( value_t  vType )

private

Definition at line 265 of file jsontreemodel.cpp.

{
    QString typeString;
    switch (vType)
    {
    case value_t::array:
        typeString = tr("array");
        break;
    case value_t::boolean:
        typeString = tr("boolean");
        break;
    case value_t::number_integer:
        typeString = tr("integer");
        break;
    case value_t::null:
        typeString = tr("null");
        break;
    case value_t::object:
        typeString = tr("object");
        break;
    case value_t::number_float:
        typeString = tr("double");
        break;
    case value_t::string:
        typeString = tr("string");
        break;
    case value_t::number_unsigned:
        typeString = tr("unsigned integer");
        break;
    defalut:
        typeString = tr("type error");
    }
    return typeString;
}

Referenced by setupModelData().

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headerData()

QVariant JsonTreeModel::headerData	(	int	section,
		Qt::Orientation	orientation,
		int	role = Qt::DisplayRole
	)		const

Definition at line 60 of file jsontreemodel.cpp.

{
    if (orientation == Qt::Horizontal && role == Qt::DisplayRole)
        return rootItem->data(section);
 
    return QVariant();
}

References JsonTreeItem::data(), and rootItem.

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index()

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

Definition at line 69 of file jsontreemodel.cpp.

{
    if (parent.isValid() && parent.column() != 0)
        return QModelIndex();
 
    JsonTreeItem *parentItem = getItem(parent);
 
    JsonTreeItem *childItem = parentItem->child(row);
    if (childItem)
        return createIndex(row, column, childItem);
    else
        return QModelIndex();
}

References JsonTreeItem::child(), getItem(), and parent().

Referenced by data(), flags(), getItem(), JsonEditorMain::insertTreeChild(), parent(), and setData().

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insertColumns()

bool JsonTreeModel::insertColumns	(	int	position,
		int	columns,
		const QModelIndex &	parent = QModelIndex()
	)

Definition at line 83 of file jsontreemodel.cpp.

{
    bool success;
 
    beginInsertColumns(parent, position, position + columns - 1);
    success = rootItem->insertColumns(position, columns);
    endInsertColumns();
 
    return success;
}

References JsonTreeItem::insertColumns(), parent(), and rootItem.

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insertRows()

bool JsonTreeModel::insertRows	(	int	position,
		int	rows,
		const QModelIndex &	parent = QModelIndex()
	)

Definition at line 94 of file jsontreemodel.cpp.

{
    JsonTreeItem *parentItem = getItem(parent);
    bool success;
 
    beginInsertRows(parent, position, position + rows - 1);
    success = parentItem->insertChildren(position, rows, rootItem->columnCount());
    endInsertRows();
 
    return success;
}

References JsonTreeItem::columnCount(), getItem(), JsonTreeItem::insertChildren(), parent(), and rootItem.

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parent()

QModelIndex JsonTreeModel::parent

(

const QModelIndex &

index

)

const

Definition at line 106 of file jsontreemodel.cpp.

{
    if (!index.isValid())
        return QModelIndex();
 
    JsonTreeItem *childItem = getItem(index);
    JsonTreeItem *parentItem = childItem->parent();
 
    if (parentItem == rootItem)
        return QModelIndex();
 
    return createIndex(parentItem->childNumber(), 0, parentItem);
}

References JsonTreeItem::childNumber(), getItem(), index(), JsonTreeItem::parent(), and rootItem.

Referenced by index(), insertColumns(), insertRows(), removeColumns(), removeRows(), rowCount(), and setupModelData().

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removeColumns()

bool JsonTreeModel::removeColumns	(	int	position,
		int	columns,
		const QModelIndex &	parent = QModelIndex()
	)

Definition at line 120 of file jsontreemodel.cpp.

{
    bool success;
 
    beginRemoveColumns(parent, position, position + columns - 1);
    success = rootItem->removeColumns(position, columns);
    endRemoveColumns();
 
    if (rootItem->columnCount() == 0)
        removeRows(0, rowCount());
 
    return success;
}

References JsonTreeItem::columnCount(), parent(), JsonTreeItem::removeColumns(), removeRows(), rootItem, and rowCount().

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removeRows()

bool JsonTreeModel::removeRows	(	int	position,
		int	rows,
		const QModelIndex &	parent = QModelIndex()
	)

Definition at line 134 of file jsontreemodel.cpp.

{
    JsonTreeItem *parentItem = getItem(parent);
    bool success = true;
 
    beginRemoveRows(parent, position, position + rows - 1);
    success = parentItem->removeChildren(position, rows);
    endRemoveRows();
 
    return success;
}

References getItem(), parent(), and JsonTreeItem::removeChildren().

Referenced by removeColumns().

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rowCount()

int JsonTreeModel::rowCount

(

const QModelIndex &

parent = QModelIndex()

)

const

Definition at line 146 of file jsontreemodel.cpp.

{
    JsonTreeItem *parentItem = getItem(parent);
 
    return parentItem->childCount();
}

References JsonTreeItem::childCount(), getItem(), and parent().

Referenced by removeColumns().

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setData()

bool JsonTreeModel::setData	(	const QModelIndex &	index,
		const QVariant &	value,
		int	role = Qt::EditRole
	)

Definition at line 153 of file jsontreemodel.cpp.

{
    if (role != Qt::EditRole)
        return false;
 
    JsonTreeItem *item = getItem(index);
    bool result = item->setData(index.column(), value);
 
    if (result)
        emit dataChanged(index, index);
 
    return result;
}

References getItem(), index(), and JsonTreeItem::setData().

Referenced by JsonEditorMain::insertTreeChild().

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setHeaderData()

bool JsonTreeModel::setHeaderData	(	int	section,
		Qt::Orientation	orientation,
		const QVariant &	value,
		int	role = Qt::EditRole
	)

Definition at line 168 of file jsontreemodel.cpp.

{
    if (role != Qt::EditRole || orientation != Qt::Horizontal)
        return false;
 
    bool result = rootItem->setData(section, value);
 
    if (result)
        emit headerDataChanged(orientation, section, section);
 
    return result;
}

References rootItem, and JsonTreeItem::setData().

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setupModelData()

void JsonTreeModel::setupModelData ( const nlohmann::json &  lines, JsonTreeItem *  parent  )

private

Definition at line 182 of file jsontreemodel.cpp.

{
    nlohmann::json* data = (nlohmann::json*)&lines;
    //QList<JsonTreeItem*> parents;
    QVector<QVariant> columnData;
    //parents << parent;
 
    /*
    JsonTreeItem *parent1 = parents.last();
    parent1->insertChildren(parent1->childCount(), 1, 2);
    parent1->child(parent1->childCount() - 1)->setData(0, QVariant(tr("A")));
    parent1->child(parent1->childCount() - 1)->setData(1, QVariant(tr("fdsfs")));
 
    JsonTreeItem *parent2 = parents.last()->child(0);
    parent2->insertChildren(parent2->childCount(), 1, 2);
    parent2->child(parent2->childCount() - 1)->setData(0, QVariant(tr("B")));
    parent2->child(parent2->childCount() - 1)->setData(1, QVariant(tr("fdsfs")));
    */
 
    int len = data->size();
    nlohmann::json::iterator dataIt = data->begin();
 
    for (int i = 0; i < len; i++)
    {
        std::string keyStr;
        auto key = dataIt.key();
        auto vType = data->type();
        QVariant keyIndex, keyData, keyType;
        if (vType == value_t::array )
        {
            QString arrayIndex("");
            arrayIndex.append(QString().sprintf("%i", i));
            keyIndex = QVariant(arrayIndex);
            keyData = QVariant(tr(dataIt->dump().c_str()));
            keyType = QVariant(getTypeString(dataIt.value().type()));
        }
        else
        {
            // key = data->at(i);
            keyIndex = QVariant(tr(key.c_str()));
            if (dataIt.value().type() != value_t::object ) {
                keyData = QVariant(tr(dataIt->dump().c_str()));
            }
            else {
                keyData = QVariant("");
            }
            keyType = QVariant(getTypeString(dataIt.value().type()));
        }
 
        columnData.clear();
        columnData.push_back(keyIndex);
        columnData.push_back(keyData);
        columnData.push_back(keyType);
 
        JsonTreeItem *parent1 = parent;
        parent1->insertChildren(parent1->childCount(), 1, rootItem->columnCount());
        for (int column = 0; column < columnData.size(); ++column)
            parent1->child(parent1->childCount() - 1)->setData(column, columnData[column]);
 
        if (data->type() == value_t::array)
        {
            if (dataIt.value().type() == value_t::array || dataIt.value().type() == value_t::object)
            {
                setupModelData(dataIt.value(), parent1->child(parent1->childCount() - 1));
            }
        }
        else
        {
            if (dataIt.value().type() == value_t::array || dataIt.value().type() == value_t::object)
            {
                setupModelData(dataIt.value(), parent1->child(parent1->childCount() - 1));
            }
        }
 
        dataIt++;
    }
}

References JsonTreeItem::child(), JsonTreeItem::childCount(), JsonTreeItem::columnCount(), data(), getTypeString(), JsonTreeItem::insertChildren(), parent(), rootItem, and JsonTreeItem::setData().

Referenced by JsonTreeModel().

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Member Data Documentation

rootItem

JsonTreeItem* JsonTreeModel::rootItem

private

Definition at line 55 of file jsontreemodel.h.

Referenced by columnCount(), getItem(), getRootItem(), headerData(), insertColumns(), insertRows(), JsonTreeModel(), parent(), removeColumns(), setHeaderData(), setupModelData(), and ~JsonTreeModel().

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

• nodes/testSetupNode/jsonGUI/src/jsontreemodel.h
• nodes/testSetupNode/jsonGUI/src/jsontreemodel.cpp