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Code/Sandbox/Editor/Util/ColumnGroupHeaderView.h

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+/*
+* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
+* its licensors.
+*
+* For complete copyright and license terms please see the LICENSE at the root of this
+* distribution (the "License"). All use of this software is governed by the License,
+* or, if provided, by the license below or the license accompanying this file. Do not
+* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+*
+*/
+#ifndef COLUMNGROUPHEADERVIEW_H
+#define COLUMNGROUPHEADERVIEW_H
+
+#if !defined(Q_MOC_RUN)
+#include <QHeaderView>
+#include <QVector>
+#endif
+
+class ColumnGroupProxyModel;
+
+class ColumnGroupHeaderView
+    : public QHeaderView
+{
+    Q_OBJECT
+
+public:
+    ColumnGroupHeaderView(QWidget* parent = 0);
+
+    void setModel(QAbstractItemModel* model) override;
+
+    QSize sizeHint() const override;
+
+    bool IsGroupsShown() const;
+
+    bool event(QEvent* event) override;
+
+public slots:
+    void ShowGroups(bool showGroups);
+
+protected slots:
+    void updateGeometries() override;
+
+private:
+    int GroupViewHeight() const;
+
+private:
+    struct Group
+    {
+        QRect rect;
+        int col;
+    };
+
+    ColumnGroupProxyModel* m_groupModel;
+    bool m_showGroups;
+
+    QVector<Group> m_groups;
+};
+
+#endif // COLUMNGROUPHEADERVIEW_H