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diff --git a/test/radialmap/radialMap/widget.h b/test/radialmap/radialMap/widget.h
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+++ b/test/radialmap/radialMap/widget.h
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+/***********************************************************************
+* Copyright 2003-2004  Max Howell <max.howell@methylblue.com>
+* Copyright 2008-2009  Martin Sandsmark <martin.sandsmark@kde.org>
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License as
+* published by the Free Software Foundation; either version 2 of
+* the License or (at your option) version 3 or any later version
+* accepted by the membership of KDE e.V. (or its successor approved
+* by the membership of KDE e.V.), which shall act as a proxy
+* defined in Section 14 of version 3 of the license.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+***********************************************************************/
+
+#ifndef WIDGET_H
+#define WIDGET_H
+
+#include <QUrl>
+
+#include <QLabel>
+#include <QDragEnterEvent>
+#include <QDropEvent>
+#include <QMouseEvent>
+#include <QPaintEvent>
+#include <QResizeEvent>
+#include <QWidget>
+#include <QTimer>
+
+#include "map.h"
+
+class Folder;
+class File;
+namespace KIO {
+class Job;
+}
+
+namespace RadialMap
+{
+class Segment;
+
+class Widget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit Widget(QWidget* = nullptr);
+    ~Widget() override;
+    QString path() const;
+    QUrl url(File const * const = nullptr) const;
+
+    bool isValid() const {
+        return m_tree != nullptr;
+    }
+
+    friend class Label; //FIXME badness
+
+public Q_SLOTS:
+    void create(const Folder*);
+    void invalidate();
+    void refresh(int);
+
+private Q_SLOTS:
+    void resizeTimeout();
+    void sendFakeMouseEvent();
+    void createFromCache(const Folder*);
+
+Q_SIGNALS:
+    void activated(const QUrl&);
+    void invalidated(const QUrl&);
+    void folderCreated(const Folder*);
+    void mouseHover(const QString&);
+    void giveMeTreeFor(const QUrl&);
+
+protected:
+    void changeEvent(QEvent*) override;
+    void mouseMoveEvent(QMouseEvent*) override;
+    void paintEvent(QPaintEvent*) override;
+    void resizeEvent(QResizeEvent*) override;
+    void enterEvent(QEvent*) override;
+    void leaveEvent(QEvent*) override;
+
+protected:
+    const Segment *segmentAt(QPoint&) const; //FIXME const reference for a library others can use
+    const Segment *rootSegment() const {
+        return m_rootSegment;    ///never == 0
+    }
+    const Segment *focusSegment() const {
+        return m_focus;    ///0 == nothing in focus
+    }
+
+private:
+    void paintExplodedLabels(QPainter&) const;
+
+    const Folder *m_tree;
+    const Segment   *m_focus;
+    QPoint           m_offset;
+    QTimer           m_timer;
+    Map              m_map;
+    Segment          *m_rootSegment;
+    const Segment    *m_toBeDeleted;
+    QLabel           m_tooltip;
+};
+}
+
+#endif