KisNodeFilterProxyModel Class Reference

#include <kis_node_filter_proxy_model.h>

Inheritance diagram for KisNodeFilterProxyModel:

Classes
struct	Private

Public Slots
void	setActiveNode (KisNodeSP node)

Signals
void	sigBeforeBeginRemoveRows (const QModelIndex &parent, int start, int end)

Public Member Functions
bool	filterAcceptsRow (int source_row, const QModelIndex &source_parent) const override
QModelIndex	indexFromNode (KisNodeSP node) const
	KisNodeFilterProxyModel (QObject *parent)
KisNodeSP	nodeFromIndex (const QModelIndex &index) const
void	setAcceptedLabels (const QSet< int > &value)
bool	setData (const QModelIndex &index, const QVariant &value, int role) override
void	setNodeModel (KisNodeModel *model)
void	setTextFilter (const QString &text)
void	unsetDummiesFacade ()
	~KisNodeFilterProxyModel () override

Private Slots
void	slotBeforeBeginRemoveRows (const QModelIndex &parent, int start, int end)
void	slotUpdateCurrentNodeFilter ()

Private Attributes
const QScopedPointer< Private >	m_d

Detailed Description

Definition at line 20 of file kis_node_filter_proxy_model.h.

Constructor & Destructor Documentation

KisNodeFilterProxyModel()

KisNodeFilterProxyModel::KisNodeFilterProxyModel

(

QObject *

parent

)

Definition at line 40 of file kis_node_filter_proxy_model.cpp.

    : QSortFilterProxyModel(parent),
      m_d(new Private)
{
    connect(&m_d->activeNodeCompressor, SIGNAL(timeout()), SLOT(slotUpdateCurrentNodeFilter()), Qt::QueuedConnection);
}

References connect(), m_d, and slotUpdateCurrentNodeFilter().

~KisNodeFilterProxyModel()

KisNodeFilterProxyModel::~KisNodeFilterProxyModel ( )

override

Definition at line 47 of file kis_node_filter_proxy_model.cpp.

{
}

Member Function Documentation

filterAcceptsRow()

bool KisNodeFilterProxyModel::filterAcceptsRow ( int source_row, const QModelIndex & source_parent ) const

override

Definition at line 102 of file kis_node_filter_proxy_model.cpp.

{
    KIS_ASSERT_RECOVER(m_d->nodeModel) { return true; }
 
    const QModelIndex index = sourceModel()->index(source_row, 0, source_parent);
    if (!index.isValid()) return false;
 
    KisNodeSP node = m_d->nodeModel->nodeFromIndex(index);
 
    return !node ||
        (m_d->acceptedColorLabels.isEmpty() && !m_d->activeTextFilter) ||
        m_d->checkIndexAllowedRecursively(index);
}

References KIS_ASSERT_RECOVER, and m_d.

indexFromNode()

QModelIndex KisNodeFilterProxyModel::indexFromNode

(

KisNodeSP

node

)

const

Definition at line 124 of file kis_node_filter_proxy_model.cpp.

{
    KIS_ASSERT_RECOVER(m_d->nodeModel) { return QModelIndex(); }
 
    QModelIndex srcIndex = m_d->nodeModel->indexFromNode(node);
    return mapFromSource(srcIndex);
}

References KIS_ASSERT_RECOVER, and m_d.

nodeFromIndex()

KisNodeSP KisNodeFilterProxyModel::nodeFromIndex

(

const QModelIndex &

index

)

const

Definition at line 116 of file kis_node_filter_proxy_model.cpp.

{
    KIS_ASSERT_RECOVER(m_d->nodeModel) { return 0; }
 
    QModelIndex srcIndex = mapToSource(index);
    return m_d->nodeModel->nodeFromIndex(srcIndex);
}

References KIS_ASSERT_RECOVER, and m_d.

setAcceptedLabels()

void KisNodeFilterProxyModel::setAcceptedLabels

(

const QSet< int > &

value

)

Definition at line 132 of file kis_node_filter_proxy_model.cpp.

{
    m_d->acceptedColorLabels = value;
    invalidateFilter();
}

References m_d, and value().

setActiveNode

void KisNodeFilterProxyModel::setActiveNode ( KisNodeSP node )

slot

Definition at line 144 of file kis_node_filter_proxy_model.cpp.

{
    // NOTE: the current node might change due to beginRemoveRows, in such case
    //       we must ensure we don't trigger recursive model invalidation.
 
    // the new node may temporary become null when the last layer
    // of the document in removed
    m_d->pendingActiveNode = node;
    m_d->activeNodeCompressor.start();
}

References m_d.

setData()

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

override

Definition at line 61 of file kis_node_filter_proxy_model.cpp.

{
    if (m_d->isUpdatingFilter && role == KisNodeModel::ActiveRole) {
        return false;
    }
 
    return QSortFilterProxyModel::setData(index, value, role);
}

References KisNodeModel::ActiveRole, m_d, and value().

setNodeModel()

void KisNodeFilterProxyModel::setNodeModel

(

KisNodeModel *

model

)

Definition at line 51 of file kis_node_filter_proxy_model.cpp.

{
    m_d->modelConnections.clear();
    m_d->modelConnections.addConnection(model, SIGNAL(sigBeforeBeginRemoveRows(const QModelIndex &, int, int)),
                                        this, SLOT(slotBeforeBeginRemoveRows(const QModelIndex &, int, int)));
 
    m_d->nodeModel = model;
    setSourceModel(model);
}

References m_d, sigBeforeBeginRemoveRows(), and slotBeforeBeginRemoveRows().

setTextFilter()

void KisNodeFilterProxyModel::setTextFilter

(

const QString &

text

)

Definition at line 138 of file kis_node_filter_proxy_model.cpp.

{
    m_d->activeTextFilter = !text.isEmpty() ? boost::make_optional(text) : boost::none;
    invalidateFilter();
}

References m_d.

sigBeforeBeginRemoveRows

void KisNodeFilterProxyModel::sigBeforeBeginRemoveRows ( const QModelIndex & parent, int start, int end )

signal

slotBeforeBeginRemoveRows

void KisNodeFilterProxyModel::slotBeforeBeginRemoveRows ( const QModelIndex & parent, int start, int end )

privateslot

Definition at line 172 of file kis_node_filter_proxy_model.cpp.

{
    for (int row = start; row <= end; row++) {
        const QModelIndex sourceIndex = sourceModel()->index(row, 0, parent);
        const QModelIndex mappedIndex = mapFromSource(sourceIndex);
 
        if (mappedIndex.isValid()) {
            Q_EMIT sigBeforeBeginRemoveRows(mappedIndex.parent(), mappedIndex.row(), mappedIndex.row());
        }
    }
}

References sigBeforeBeginRemoveRows().

slotUpdateCurrentNodeFilter

void KisNodeFilterProxyModel::slotUpdateCurrentNodeFilter ( )

privateslot

During the filter update the model might Q_EMIT "current changed" signals, which (in their turn) will issue setData(..., KisNodeModel::ActiveRole) call, leading to a double recursion. Which, obviously, crashes Krita.

Right now, just blocking the KisNodeModel::ActiveRole call is the most obvious solution for the problem.

Definition at line 155 of file kis_node_filter_proxy_model.cpp.

{
    m_d->activeNode = m_d->pendingActiveNode;
 
    m_d->isUpdatingFilter = true;
    invalidateFilter();
    m_d->isUpdatingFilter = false;
}

References m_d.

unsetDummiesFacade()

void KisNodeFilterProxyModel::unsetDummiesFacade

(

)

Definition at line 184 of file kis_node_filter_proxy_model.cpp.

{
    m_d->nodeModel->setDummiesFacade(0, 0, 0, 0, 0);
    m_d->pendingActiveNode = 0;
    m_d->activeNode = 0;
}

References m_d.

Member Data Documentation

m_d

const QScopedPointer<Private> KisNodeFilterProxyModel::m_d

private

Definition at line 52 of file kis_node_filter_proxy_model.h.

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

• libs/ui/kis_node_filter_proxy_model.h
• libs/ui/kis_node_filter_proxy_model.cpp