mirror of
https://invent.kde.org/system/dolphin
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105 lines
3.7 KiB
C++
105 lines
3.7 KiB
C++
/***************************************************************************
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* Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com> *
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* *
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* Based on the Itemviews NG project from Trolltech Labs: *
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* http://qt.gitorious.org/qt-labs/itemviews-ng *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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***************************************************************************/
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#ifndef KITEMLISTSELECTIONMANAGER_H
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#define KITEMLISTSELECTIONMANAGER_H
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#include "dolphin_export.h"
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#include <kitemviews/kitemmodelbase.h>
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#include <kitemviews/kitemset.h>
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#include <QObject>
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class KItemModelBase;
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/**
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* @brief Allows to select and deselect items of a KItemListView.
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*/
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class DOLPHIN_EXPORT KItemListSelectionManager : public QObject
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{
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Q_OBJECT
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enum RangesRemovingBehaviour {
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DiscardRemovedIndex,
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AdjustRemovedIndex
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};
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public:
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enum SelectionMode {
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Select,
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Deselect,
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Toggle
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};
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KItemListSelectionManager(QObject* parent = 0);
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virtual ~KItemListSelectionManager();
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void setCurrentItem(int current);
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int currentItem() const;
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void setSelectedItems(const KItemSet& items);
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KItemSet selectedItems() const;
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bool isSelected(int index) const;
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bool hasSelection() const;
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void setSelected(int index, int count = 1, SelectionMode mode = Select);
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void clearSelection();
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void beginAnchoredSelection(int anchor);
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void endAnchoredSelection();
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bool isAnchoredSelectionActive() const;
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KItemModelBase* model() const;
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signals:
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void currentChanged(int current, int previous);
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void selectionChanged(const KItemSet& current, const KItemSet& previous);
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private:
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void setModel(KItemModelBase* model);
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void itemsInserted(const KItemRangeList& itemRanges);
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void itemsRemoved(const KItemRangeList& itemRanges);
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void itemsMoved(const KItemRange& itemRange, const QList<int>& movedToIndexes);
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/**
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* Helper method for itemsRemoved. Returns the changed index after removing
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* the given range. If the index is part of the range, -1 will be returned.
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*/
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int indexAfterRangesRemoving(int index, const KItemRangeList& itemRanges, const RangesRemovingBehaviour behaviour) const;
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private:
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int m_currentItem;
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int m_anchorItem;
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KItemSet m_selectedItems;
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bool m_isAnchoredSelectionActive;
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KItemModelBase* m_model;
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friend class KItemListController; // Calls setModel()
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friend class KItemListView; // Calls itemsInserted(), itemsRemoved() and itemsMoved()
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friend class KItemListSelectionManagerTest;
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};
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#endif
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