FitParameterProxyModel Class Reference

The FitParameterProxyModel adapts the original JobModel to show items from FitParameterContainer in 5 column tree view. More...

Inheritance diagram for FitParameterProxyModel:

Collaboration diagram for FitParameterProxyModel:

Public Types
enum	EColumn {   PAR_NAME , PAR_TYPE , PAR_VALUE , PAR_MIN ,   PAR_MAX , MAX_COLUMNS }

Public Member Functions
	FitParameterProxyModel (FitParameterContainerItem *fitParContainer, QObject *parent=0)
	~FitParameterProxyModel ()
bool	canDropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) const Q_DECL_OVERRIDE
int	columnCount (const QModelIndex &parent) const Q_DECL_OVERRIDE
QVariant	data (const QModelIndex &index, int role=Qt::DisplayRole) const Q_DECL_OVERRIDE
bool	dropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) Q_DECL_OVERRIDE
Qt::ItemFlags	flags (const QModelIndex &index) const Q_DECL_OVERRIDE
QVariant	headerData (int section, Qt::Orientation orientation, int role) const Q_DECL_OVERRIDE
QModelIndex	index (int row, int column, const QModelIndex &parent) const Q_DECL_OVERRIDE
QModelIndex	indexOfItem (SessionItem *item) const
bool	isValidSourceItem (SessionItem *item) const
	Returns true if given item still exists in source model. More...
SessionItem *	itemForIndex (const QModelIndex &index) const
QMimeData *	mimeData (const QModelIndexList &indexes) const Q_DECL_OVERRIDE
QStringList	mimeTypes () const Q_DECL_OVERRIDE
QModelIndex	parent (const QModelIndex &child) const Q_DECL_OVERRIDE
int	rowCount (const QModelIndex &parent) const Q_DECL_OVERRIDE
bool	setData (const QModelIndex &index, const QVariant &value, int role) Q_DECL_OVERRIDE
SessionModel *	sourceModel () const
Qt::DropActions	supportedDragActions () const Q_DECL_OVERRIDE
Qt::DropActions	supportedDropActions () const Q_DECL_OVERRIDE

Private Slots
void	onSourceAboutToBeReset ()
void	onSourceDataChanged (const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector< int > &roles)
void	onSourceRowsRemoved (const QModelIndex &parent, int first, int last)

Private Member Functions
void	addColumn (EColumn id, const QString &name, const QString &tooltip)
void	connectModel (QAbstractItemModel *sourceModel, bool isConnect=true)

Private Attributes
QMap< int, QString >	m_columnNames
QMap< int, QString >	m_columnToolTips
FitParameterContainerItem *	m_root_item

Detailed Description

The FitParameterProxyModel adapts the original JobModel to show items from FitParameterContainer in 5 column tree view.

It is derived from QAbstractItemModel (and not from QAbstractProxyModel).

Definition at line 29 of file FitParameterProxyModel.h.

Member Enumeration Documentation

EColumn

enum FitParameterProxyModel::EColumn

Enumerator
PAR_NAME
PAR_TYPE
PAR_VALUE
PAR_MIN
PAR_MAX
MAX_COLUMNS

Definition at line 38 of file FitParameterProxyModel.h.

{ PAR_NAME, PAR_TYPE, PAR_VALUE, PAR_MIN, PAR_MAX, MAX_COLUMNS };

Constructor & Destructor Documentation

FitParameterProxyModel()

FitParameterProxyModel::FitParameterProxyModel ( FitParameterContainerItem *  fitParContainer, QObject *  parent = 0  )

explicit

Definition at line 26 of file FitParameterProxyModel.cpp.

    : QAbstractItemModel(parent), m_root_item(fitParContainer)
{
    addColumn(PAR_NAME, "Name", "Name of fit parameter");
    addColumn(PAR_TYPE, FitParameterItem::P_TYPE, "Fit parameter limits type");
    addColumn(PAR_VALUE, FitParameterItem::P_START_VALUE, "Starting value of fit parameter");
    addColumn(PAR_MIN, FitParameterItem::P_MIN, "Lower bound on fit parameter value");
    addColumn(PAR_MAX, FitParameterItem::P_MAX, "Upper bound on fit parameter value");
 
    connectModel(fitParContainer->model());
 
    m_root_item->mapper()->setOnItemDestroy(
        [this](SessionItem* parentItem) {
            if (parentItem != m_root_item) {
                throw GUIHelpers::Error(
                    "FitParameterProxyModel::FitParameterProxyModel() -> Error. "
                    "Wrong item reported.");
            }
            m_root_item = 0;
        },
        this);
}

References addColumn(), connectModel(), m_root_item, SessionItem::mapper(), SessionItem::model(), FitParameterItem::P_MAX, FitParameterItem::P_MIN, FitParameterItem::P_START_VALUE, FitParameterItem::P_TYPE, PAR_MAX, PAR_MIN, PAR_NAME, PAR_TYPE, PAR_VALUE, and ModelMapper::setOnItemDestroy().

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~FitParameterProxyModel()

FitParameterProxyModel::~FitParameterProxyModel

(

)

Definition at line 50 of file FitParameterProxyModel.cpp.

{
    if (m_root_item) {
        m_root_item->mapper()->unsubscribe(this);
    }
}

References m_root_item, SessionItem::mapper(), and ModelMapper::unsubscribe().

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Member Function Documentation

addColumn()

void FitParameterProxyModel::addColumn ( FitParameterProxyModel::EColumn  id, const QString &  name, const QString &  tooltip  )

private

Definition at line 343 of file FitParameterProxyModel.cpp.

{
    m_columnNames[id] = name;
    m_columnToolTips[id] = tooltip;
}

References m_columnNames, m_columnToolTips, and RealSpace::Particles::name().

Referenced by FitParameterProxyModel().

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canDropMimeData()

bool FitParameterProxyModel::canDropMimeData	(	const QMimeData *	data,
		Qt::DropAction	action,
		int	row,
		int	column,
		const QModelIndex &	parent
	)		const

Definition at line 241 of file FitParameterProxyModel.cpp.

{
    Q_UNUSED(data);
    Q_UNUSED(action);
    Q_UNUSED(row);
    bool drop_is_possible(false);
    if (parent.isValid())
        drop_is_possible = true;
    if (!parent.isValid() && row == -1 && column == -1)
        drop_is_possible = true;
    return drop_is_possible;
}

References data(), and parent().

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columnCount()

int FitParameterProxyModel::columnCount

(

const QModelIndex &

parent

)

const

Definition at line 159 of file FitParameterProxyModel.cpp.

{
    if (!m_root_item)
        return 0;
 
    if (parent.isValid() && parent.column() != 0)
        return 0;
 
    if (!parent.isValid())
        return MAX_COLUMNS;
 
    if (parent.isValid()) {
        if (SessionItem* parentItem = itemForIndex(parent)) {
            if (parentItem->modelType() == "FitParameter") {
                return (parentItem->getItems(FitParameterItem::T_LINK).size() ? 1 : 0);
            }
        }
    }
    return 0;
}

References itemForIndex(), m_root_item, MAX_COLUMNS, parent(), and FitParameterItem::T_LINK.

Referenced by index().

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connectModel()

void FitParameterProxyModel::connectModel ( QAbstractItemModel *  sourceModel, bool  isConnect = true  )

private

Definition at line 323 of file FitParameterProxyModel.cpp.

{
    ASSERT(sourceModel);
    if (isConnect) {
        connect(sourceModel, &QAbstractItemModel::dataChanged, this,
                &FitParameterProxyModel::onSourceDataChanged);
        connect(sourceModel, &QAbstractItemModel::rowsRemoved, this,
                &FitParameterProxyModel::onSourceRowsRemoved);
        connect(sourceModel, &QAbstractItemModel::modelAboutToBeReset, this,
                &FitParameterProxyModel::onSourceAboutToBeReset);
    } else {
        disconnect(sourceModel, &QAbstractItemModel::dataChanged, this,
                   &FitParameterProxyModel::onSourceDataChanged);
        disconnect(sourceModel, &QAbstractItemModel::rowsRemoved, this,
                   &FitParameterProxyModel::onSourceRowsRemoved);
        disconnect(sourceModel, &QAbstractItemModel::modelAboutToBeReset, this,
                   &FitParameterProxyModel::onSourceAboutToBeReset);
    }
}

References ASSERT, onSourceAboutToBeReset(), onSourceDataChanged(), onSourceRowsRemoved(), and sourceModel().

Referenced by FitParameterProxyModel().

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data()

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

Definition at line 180 of file FitParameterProxyModel.cpp.

{
    if (!m_root_item)
        return QVariant();
 
    if (!index.isValid() || index.column() < 0 || index.column() >= MAX_COLUMNS)
        return QVariant();
 
    if (SessionItem* item = itemForIndex(index)) {
        if (role == Qt::DisplayRole || role == Qt::EditRole) {
            if (item->modelType() == "FitParameter") {
                return item->displayName();
            } else {
                return item->value();
            }
        } else if (role == Qt::ForegroundRole && !item->isEditable()) {
            return QVariant(QColor(Qt::gray));
        } else if (role == Qt::ToolTipRole && item->displayName() == FitParameterLinkItem::P_LINK) {
            return item->value();
        }
    }
    return QVariant();
}

References SessionItemUtils::ForegroundRole(), index(), itemForIndex(), m_root_item, MAX_COLUMNS, FitParameterLinkItem::P_LINK, and SessionItemUtils::ToolTipRole().

Referenced by canDropMimeData(), and dropMimeData().

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dropMimeData()

bool FitParameterProxyModel::dropMimeData	(	const QMimeData *	data,
		Qt::DropAction	action,
		int	row,
		int	column,
		const QModelIndex &	parent
	)

Definition at line 255 of file FitParameterProxyModel.cpp.

{
    Q_UNUSED(action);
    Q_UNUSED(row);
    Q_UNUSED(column);
 
    if (parent.isValid()) {
        if (SessionItem* fitParItem = itemForIndex(parent)) {
            ASSERT(fitParItem->modelType() == "FitParameter");
            ParameterItem* parItem = FitParameterHelper::getParameterItem(
                m_root_item, QString::fromLatin1(data->data(SessionXML::LinkMimeType)));
            ASSERT(parItem);
            FitParameterHelper::addToFitParameter(m_root_item, parItem, fitParItem->displayName());
        }
    } else {
        ParameterItem* parItem = FitParameterHelper::getParameterItem(
            m_root_item, QString::fromLatin1(data->data(SessionXML::LinkMimeType)));
        ASSERT(parItem);
        FitParameterHelper::createFitParameter(m_root_item, parItem);
    }
    return true;
}

References FitParameterHelper::addToFitParameter(), ASSERT, FitParameterHelper::createFitParameter(), data(), SessionItem::displayName(), FitParameterHelper::getParameterItem(), itemForIndex(), SessionXML::LinkMimeType, m_root_item, and parent().

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flags()

Qt::ItemFlags FitParameterProxyModel::flags

(

const QModelIndex &

index

)

const

Definition at line 57 of file FitParameterProxyModel.cpp.

{
    if (!m_root_item)
        return Qt::NoItemFlags;
 
    Qt::ItemFlags returnVal = Qt::ItemIsEnabled | Qt::ItemIsSelectable;
    if (SessionItem* item = itemForIndex(index)) {
        if (item->isEditable() && index.column() != 0)
            returnVal |= Qt::ItemIsEditable;
        if (item->parent()->modelType() == "FitParameterLink" && index.column() == 0) {
            returnVal |= Qt::ItemIsDragEnabled;
        }
        const bool allow_one_fit_parameter_to_have_more_than_one_link = true;
        if (allow_one_fit_parameter_to_have_more_than_one_link) {
            // drop is allowed to fit parameter container, and, to FitParameterItem itself.
            // (i.e. we can have more than one link in single FitParameterItem)
            if (item->modelType() == "FitParameter"
                || item->modelType() == "FitParameterContainer") {
                returnVal |= Qt::ItemIsDropEnabled;
            }
        } else {
            // drop is allowed only to fit parameter container
            // (i.e. only one link is allowed in FitParameterItem)
            if (item->modelType() == "FitParameterContainer") {
                returnVal |= Qt::ItemIsDropEnabled;
            }
        }
    }
    return returnVal;
}

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

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headerData()

QVariant FitParameterProxyModel::headerData	(	int	section,
		Qt::Orientation	orientation,
		int	role
	)		const

Definition at line 279 of file FitParameterProxyModel.cpp.

{
    if (role == Qt::DisplayRole && orientation == Qt::Horizontal) {
        return m_columnNames.value(section);
    } else if (role == Qt::ToolTipRole) {
        return m_columnToolTips.value(section);
    }
    return QVariant();
}

References m_columnNames, m_columnToolTips, and SessionItemUtils::ToolTipRole().

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index()

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

Definition at line 88 of file FitParameterProxyModel.cpp.

{
    if (!m_root_item || row < 0 || column < 0 || column >= columnCount(QModelIndex())
        || (parent.isValid() && parent.column() != 0))
        return QModelIndex();
 
    SessionItem* parent_item = itemForIndex(parent);
    ASSERT(parent_item);
 
    if (parent_item->modelType() == "FitParameterContainer") {
        if (SessionItem* fitParItem = parent_item->childAt(row)) {
            SessionItem* itemToPack = fitParItem;
            if (column != 0) {
                itemToPack = fitParItem->getItem(m_columnNames.value(column));
            }
            return createIndex(row, column, itemToPack);
        }
    } else if (parent_item->modelType() == "FitParameter" && column == 0) {
        QVector<SessionItem*> links = parent_item->getItems(FitParameterItem::T_LINK);
        if (row < links.size()) {
            if (SessionItem* linkItem = links.at(row)) {
                return createIndex(row, column, linkItem->getItem(FitParameterLinkItem::P_LINK));
            }
        }
    }
    return QModelIndex();
}

References ASSERT, SessionItem::childAt(), columnCount(), SessionItem::getItem(), SessionItem::getItems(), itemForIndex(), m_columnNames, m_root_item, SessionItem::modelType(), FitParameterLinkItem::P_LINK, parent(), and FitParameterItem::T_LINK.

Referenced by data(), flags(), itemForIndex(), mimeData(), setData(), and FitParameterWidget::spanParameters().

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indexOfItem()

QModelIndex FitParameterProxyModel::indexOfItem

(

SessionItem *

item

)

const

Definition at line 350 of file FitParameterProxyModel.cpp.

{
    if (!m_root_item)
        return QModelIndex();
 
    if (SessionItem* parent_item = item->parent()) {
        if (parent_item->modelType() == "FitParameterContainer") {
            if (item->modelType() == "FitParameter") {
                return createIndex(ParentRow(*item), 0, item);
            }
        } else if (parent_item->modelType() == "FitParameter") {
 
            QString tag = parent_item->tagFromItem(item);
            int col = m_columnNames.key(tag, -1);
            if (col > 0) {
                return createIndex(ParentRow(*parent_item), col, item);
            }
        } else if (parent_item->modelType() == "FitParameterLink") {
            QVector<SessionItem*> links = parent_item->parent()->getItems(FitParameterItem::T_LINK);
            return createIndex(links.indexOf(parent_item), 0, item);
        }
    }
    return QModelIndex();
}

References m_columnNames, m_root_item, SessionItem::modelType(), SessionItem::parent(), SessionItemUtils::ParentRow(), and FitParameterItem::T_LINK.

Referenced by onSourceDataChanged().

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isValidSourceItem()

bool FitParameterProxyModel::isValidSourceItem

(

SessionItem *

item

)

const

Returns true if given item still exists in source model.

Definition at line 399 of file FitParameterProxyModel.cpp.

{
    if (item == m_root_item)
        return true;
    if (sourceModel() && ModelPath::isValidItem(sourceModel(), item, m_root_item->index()))
        return true;
    return false;
}

References SessionItem::index(), ModelPath::isValidItem(), m_root_item, and sourceModel().

Referenced by itemForIndex(), parent(), and rowCount().

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itemForIndex()

SessionItem * FitParameterProxyModel::itemForIndex

(

const QModelIndex &

index

)

const

Definition at line 375 of file FitParameterProxyModel.cpp.

{
    if (!m_root_item)
        return 0;
 
    if (index.isValid()) {
        SessionItem* item = static_cast<SessionItem*>(index.internalPointer());
        if (item) {
            if (!isValidSourceItem(item)) {
                return 0;
            }
            return item;
        }
    }
    return m_root_item;
}

References index(), isValidSourceItem(), and m_root_item.

Referenced by columnCount(), data(), dropMimeData(), flags(), index(), mimeData(), FitParameterWidget::onFitParametersSelectionChanged(), parent(), rowCount(), FitParameterWidget::selectedFitParameterLinks(), FitParameterWidget::selectedFitParameters(), and setData().

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mimeData()

QMimeData * FitParameterProxyModel::mimeData

(

const QModelIndexList &

indexes

)

const

Definition at line 228 of file FitParameterProxyModel.cpp.

{
    QMimeData* mimeData = new QMimeData();
    QModelIndex index = indexes.first();
    if (index.isValid()) {
        if (SessionItem* item = itemForIndex(index)) {
            QString path = item->value().toString();
            mimeData->setData(SessionXML::LinkMimeType, path.toLatin1());
        }
    }
    return mimeData;
}

References index(), itemForIndex(), and SessionXML::LinkMimeType.

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mimeTypes()

QStringList FitParameterProxyModel::mimeTypes

(

)

const

Definition at line 221 of file FitParameterProxyModel.cpp.

{
    QStringList types;
    types << SessionXML::LinkMimeType;
    return types;
}

References SessionXML::LinkMimeType.

onSourceAboutToBeReset

void FitParameterProxyModel::onSourceAboutToBeReset ( )

privateslot

Definition at line 315 of file FitParameterProxyModel.cpp.

{
    if (!m_root_item)
        return;
    beginResetModel();
    endResetModel();
}

References m_root_item.

Referenced by connectModel().

onSourceDataChanged

void FitParameterProxyModel::onSourceDataChanged ( const QModelIndex &  topLeft, const QModelIndex &  bottomRight, const QVector< int > &  roles  )

privateslot

Definition at line 290 of file FitParameterProxyModel.cpp.

{
    Q_UNUSED(bottomRight);
 
    JobModel* sourceModel = qobject_cast<JobModel*>(sender());
    ASSERT(sourceModel);
    SessionItem* sourceItem = sourceModel->itemForIndex(topLeft);
 
    QModelIndex itemIndex = indexOfItem(sourceItem);
 
    if (itemIndex.isValid())
        emit dataChanged(itemIndex, itemIndex, roles);
}

References ASSERT, indexOfItem(), SessionModel::itemForIndex(), and sourceModel().

Referenced by connectModel().

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onSourceRowsRemoved

void FitParameterProxyModel::onSourceRowsRemoved ( const QModelIndex &  parent, int  first, int  last  )

privateslot

Definition at line 306 of file FitParameterProxyModel.cpp.

{
    Q_UNUSED(parent);
    Q_UNUSED(first);
    Q_UNUSED(last);
    beginResetModel();
    endResetModel();
}

References parent().

Referenced by connectModel().

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parent()

QModelIndex FitParameterProxyModel::parent

(

const QModelIndex &

child

)

const

Definition at line 116 of file FitParameterProxyModel.cpp.

{
    if (!m_root_item)
        return QModelIndex();
 
    if (!child.isValid())
        return QModelIndex();
 
    if (SessionItem* child_item = itemForIndex(child)) {
        if (SessionItem* parent_item = child_item->parent()) {
            if (!isValidSourceItem(parent_item))
                return QModelIndex();
            if (parent_item->modelType() == "FitParameterLink") {
                SessionItem* fitPar = parent_item->parent();
                if (!isValidSourceItem(fitPar))
                    return QModelIndex();
                return createIndex(ParentRow(*fitPar), 0, fitPar);
            }
        }
    }
    return QModelIndex();
}

References isValidSourceItem(), itemForIndex(), m_root_item, SessionItem::parent(), and SessionItemUtils::ParentRow().

Referenced by canDropMimeData(), columnCount(), dropMimeData(), index(), onSourceRowsRemoved(), and rowCount().

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rowCount()

int FitParameterProxyModel::rowCount

(

const QModelIndex &

parent

)

const

Definition at line 139 of file FitParameterProxyModel.cpp.

{
    if (!m_root_item)
        return 0;
 
    if (parent.isValid() && parent.column() != 0)
        return 0;
 
    SessionItem* parent_item = itemForIndex(parent);
    if (parent_item != m_root_item && !isValidSourceItem(parent_item))
        return 0;
 
    if (parent_item->modelType() == "FitParameterContainer") {
        return parent_item->numberOfChildren();
    } else if (parent_item->modelType() == "FitParameter") {
        return parent_item->getItems(FitParameterItem::T_LINK).size();
    }
    return 0;
}

References SessionItem::getItems(), isValidSourceItem(), itemForIndex(), m_root_item, SessionItem::modelType(), SessionItem::numberOfChildren(), parent(), and FitParameterItem::T_LINK.

Referenced by FitParameterWidget::spanParameters().

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setData()

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

Definition at line 204 of file FitParameterProxyModel.cpp.

{
    if (!m_root_item)
        return false;
 
    if (!index.isValid())
        return false;
    if (SessionItem* item = itemForIndex(index)) {
        if (role == Qt::EditRole) {
            item->setValue(value);
            emit dataChanged(index, index);
            return true;
        }
    }
    return false;
}

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

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sourceModel()

SessionModel * FitParameterProxyModel::sourceModel

(

)

const

Definition at line 392 of file FitParameterProxyModel.cpp.

{
    ASSERT(m_root_item);
    return m_root_item->model();
}

References ASSERT, m_root_item, and SessionItem::model().

Referenced by connectModel(), isValidSourceItem(), and onSourceDataChanged().

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supportedDragActions()

Qt::DropActions FitParameterProxyModel::supportedDragActions ( ) const

inline

Definition at line 81 of file FitParameterProxyModel.h.

{
    return Qt::MoveAction | Qt::CopyAction;
}

supportedDropActions()

Qt::DropActions FitParameterProxyModel::supportedDropActions ( ) const

inline

Definition at line 86 of file FitParameterProxyModel.h.

{
    return Qt::MoveAction | Qt::CopyAction;
}

Member Data Documentation

m_columnNames

QMap<int, QString> FitParameterProxyModel::m_columnNames

private

Definition at line 77 of file FitParameterProxyModel.h.

Referenced by addColumn(), headerData(), index(), and indexOfItem().

m_columnToolTips

QMap<int, QString> FitParameterProxyModel::m_columnToolTips

private

Definition at line 78 of file FitParameterProxyModel.h.

Referenced by addColumn(), and headerData().

m_root_item

FitParameterContainerItem* FitParameterProxyModel::m_root_item

private

Definition at line 76 of file FitParameterProxyModel.h.

Referenced by FitParameterProxyModel(), ~FitParameterProxyModel(), columnCount(), data(), dropMimeData(), flags(), index(), indexOfItem(), isValidSourceItem(), itemForIndex(), onSourceAboutToBeReset(), parent(), rowCount(), setData(), and sourceModel().

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

• /home/www/ba/GUI/coregui/Models/FitParameterProxyModel.h
• /home/www/ba/GUI/coregui/Models/FitParameterProxyModel.cpp