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89e0c3f464
DiveTripModel (the model describing the dive-list) was destroyed and recreated on every reset of the list. This seems excessive. Instead - in analogy to most other models - make it a single global object. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
41 lines
1 KiB
C++
41 lines
1 KiB
C++
// SPDX-License-Identifier: GPL-2.0
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#ifndef TREEMODEL_H
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#define TREEMODEL_H
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#include <QAbstractItemModel>
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#include <QCoreApplication>
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#include <memory>
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struct TreeItem {
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Q_DECLARE_TR_FUNCTIONS(TreeItemDT)
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public:
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virtual ~TreeItem();
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TreeItem();
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virtual QVariant data(int column, int role) const;
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virtual bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole);
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virtual Qt::ItemFlags flags(const QModelIndex &index) const;
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int row() const;
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QList<TreeItem *> children;
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TreeItem *parent;
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};
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class TreeModel : public QAbstractItemModel {
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Q_OBJECT
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public:
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TreeModel(QObject *parent = 0);
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QVariant data(const QModelIndex &index, int role) const;
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int rowCount(const QModelIndex &parent = QModelIndex()) const;
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int columnCount(const QModelIndex &parent = QModelIndex()) const;
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QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;
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QModelIndex parent(const QModelIndex &child) const;
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void clear();
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protected:
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int columns;
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std::unique_ptr<TreeItem> rootItem;
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};
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#endif
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