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82 lines
2.3 KiB
C++
82 lines
2.3 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 COLUMNGROUPTREEVIEW_H
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#define COLUMNGROUPTREEVIEW_H
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#if !defined(Q_MOC_RUN)
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#include <QTreeView>
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#include <QPainter>
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#endif
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class ColumnGroupProxyModel;
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class ColumnGroupHeaderView;
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class ColumnGroupTreeView
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: public QTreeView
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{
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Q_OBJECT
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public:
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ColumnGroupTreeView(QWidget* parent = 0);
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void setModel(QAbstractItemModel* model) override;
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bool IsGroupsShown() const;
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QModelIndex mapToSource(const QModelIndex& proxyIndex) const;
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QModelIndex mapFromSource(const QModelIndex& sourceModel) const;
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public slots:
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void ShowGroups(bool showGroups);
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void Sort(int column, Qt::SortOrder order = Qt::AscendingOrder);
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void ToggleSortOrder(int column);
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void AddGroup(int column);
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void RemoveGroup(int column);
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void SetGroups(const QVector<int>& columns);
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void ClearGroups();
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QVector<int> Groups() const;
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protected:
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void paintEvent(QPaintEvent* event)
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{
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if (model() && model()->rowCount() > 0)
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{
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QTreeView::paintEvent(event);
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}
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else
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{
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const QMargins margins(2, 2, 2, 2);
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QPainter painter(viewport());
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QString text(tr("There are no items to show."));
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QRect textRect = painter.fontMetrics().boundingRect(text).marginsAdded(margins);
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textRect.moveCenter(viewport()->rect().center());
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textRect.moveTop(viewport()->rect().top());
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painter.drawText(textRect, Qt::AlignCenter, text);
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}
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}
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private slots:
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void SaveOpenState();
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void RestoreOpenState();
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void SpanGroups(const QModelIndex& index = QModelIndex());
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private:
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ColumnGroupHeaderView* m_header;
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ColumnGroupProxyModel* m_groupModel;
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QSet<QString> m_openNodes;
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bool m_showGroups;
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};
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#endif // COLUMNGROUPTREEVIEW_H
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