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88 lines
2.6 KiB
C++
88 lines
2.6 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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#ifndef QABSTRACTQVARIANTTREEDATAMODEL_H
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#define QABSTRACTQVARIANTTREEDATAMODEL_H
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#include <QAbstractItemModel>
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#include <memory>
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#include <vector>
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#include "EditorCommonAPI.h"
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class EDITOR_COMMON_API QAbstractQVariantTreeDataModel
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: public QAbstractItemModel
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{
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public:
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QAbstractQVariantTreeDataModel(QObject* parent)
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: QAbstractItemModel(parent) { }
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QModelIndex index(int row, int column, const QModelIndex& parent = QModelIndex()) const override;
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QModelIndex parent(const QModelIndex& child) const override;
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bool hasChildren(const QModelIndex& parent = QModelIndex()) 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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protected:
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struct Folder;
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struct Item
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{
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Item()
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: m_parent(0) { }
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QMap<int, QVariant> m_data;
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Folder* m_parent;
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virtual ~Item() = default;
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virtual const Folder* asFolder() const { return 0; } // need this as we don't have RTTI
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};
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struct Folder
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: public Item
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{
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Folder(const QString& name)
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{
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m_data.insert(Qt::DisplayRole, name);
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}
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std::vector < std::shared_ptr<Item> > m_children;
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const Folder* asFolder() const override { return this; } // need this as we don't have RTTI
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int row(Item* item) const
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{
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for (int i = 0; i < m_children.size(); ++i)
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{
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if (m_children[i].get() == item)
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{
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return i;
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}
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}
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return -1;
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}
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void addChild(std::shared_ptr<Item> item)
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{
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item->m_parent = this;
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m_children.push_back(item);
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}
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};
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Item* itemFromIndex(const QModelIndex& index) const;
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QModelIndex indexFromItem(Item* item, int col = 0) const;
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AZ_PUSH_DISABLE_DLL_EXPORT_MEMBER_WARNING
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std::shared_ptr<Folder> m_root;
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AZ_POP_DISABLE_DLL_EXPORT_MEMBER_WARNING
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};
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#endif // QABSTRACTQVARIANTTREEDATAMODEL_H
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