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/*
* SPDX-FileCopyrightText: 2011 Peter Penz <[email protected]>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef KITEMLISTSIZEHINTRESOLVER_H
#define KITEMLISTSIZEHINTRESOLVER_H
#include "dolphin_export.h"
#include "kitemviews/kitemmodelbase.h"
#include <QSizeF>
#include <QVector>
class KItemListView;
/**
* @brief Calculates and caches the sizehints of items in KItemListView.
*/
class DOLPHIN_EXPORT KItemListSizeHintResolver
{
public:
explicit KItemListSizeHintResolver(const KItemListView *itemListView);
virtual ~KItemListSizeHintResolver();
QSizeF minSizeHint();
QSizeF sizeHint(int index);
bool isElided(int index);
void itemsInserted(const KItemRangeList &itemRanges);
void itemsRemoved(const KItemRangeList &itemRanges);
void itemsMoved(const KItemRange &range, const QList<int> &movedToIndexes);
void itemsChanged(int index, int count, const QSet<QByteArray> &roles);
void clearCache();
void updateCache();
private:
const KItemListView *m_itemListView;
mutable QVector<std::pair<qreal /* height */, bool /* isElided */>> m_logicalHeightHintCache;
mutable qreal m_logicalWidthHint;
mutable qreal m_minHeightHint;
bool m_needsResolving;
};
#endif
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