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85 lines
2.6 KiB
C++
85 lines
2.6 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project.
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* For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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#ifndef ABSTRACTGROUPPROXYMODEL_H
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#define ABSTRACTGROUPPROXYMODEL_H
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#if !defined(Q_MOC_RUN)
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#include <QAbstractProxyModel>
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#endif
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#if !defined(Q_MOC_RUN)
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#include <QPixmap>
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#endif
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class AbstractGroupProxyModel
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: public QAbstractProxyModel
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{
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Q_OBJECT
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public:
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AbstractGroupProxyModel(QObject* parent = 0);
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~AbstractGroupProxyModel();
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QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;
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QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
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int rowCount(const QModelIndex& parent = QModelIndex()) const override;
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int columnCount(const QModelIndex& parent = QModelIndex()) const override;
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QModelIndex index(int row, int column, const QModelIndex& parent = QModelIndex()) const override;
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QModelIndex parent(const QModelIndex& index) const override;
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bool hasChildren(const QModelIndex& parent = QModelIndex()) const override;
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Qt::ItemFlags flags(const QModelIndex& index) const override;
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QModelIndex mapToSource(const QModelIndex& proxyIndex) const override;
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QModelIndex mapFromSource(const QModelIndex& sourceIndex) const override;
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void setSourceModel(QAbstractItemModel* sourceModel) override;
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signals:
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void GroupUpdated();
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protected:
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virtual QStringList GroupForSourceIndex(const QModelIndex& sourceIndex) const = 0;
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virtual bool IsGroupIndex([[maybe_unused]] const QModelIndex& sourceIndex) const { return false; }
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void slotSourceAboutToBeReset();
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void slotSourceReset();
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void RebuildTree();
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int subGroupCount() const;
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private:
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struct GroupItem
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{
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QPersistentModelIndex groupSourceIndex;
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QString groupTitle;
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QVector<GroupItem*> subGroups;
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QVector<QPersistentModelIndex> sourceIndexes;
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~GroupItem()
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{
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qDeleteAll(subGroups);
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}
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};
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GroupItem* FindIndex(const QModelIndex& index, GroupItem* group = 0) const;
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GroupItem* FindGroup(GroupItem* group, GroupItem* parent = 0) const;
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void SourceRowsInserted(const QModelIndex& parent, int from, int to);
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void SourceRowsAboutToBeRemoved(const QModelIndex& parent, int from, int to);
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void SourceDataChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight);
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GroupItem* CreateGroupIfNotExists(QStringList group);
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void RemoveEmptyGroup(GroupItem* group);
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GroupItem m_rootItem;
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};
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#endif // ABSTRACTGROUPPROXYMODEL_H
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