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diff --git a/3rdparty/QtPropertyBrowser/examples/canvas_variant/mainwindow.h b/3rdparty/QtPropertyBrowser/examples/canvas_variant/mainwindow.h
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+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of a Qt Solutions component.
+**
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+****************************************************************************/
+
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+#include <QMap>
+#include "qtcanvas.h"
+
+class QtVariantProperty;
+class QtProperty;
+
+class QtBrowserIndex;
+
+class CanvasView : public QtCanvasView
+{
+    Q_OBJECT
+public:
+    CanvasView(QWidget *parent = 0)
+        : QtCanvasView(parent), moving(0) { }
+    CanvasView(QtCanvas *canvas, QWidget *parent = 0)
+        : QtCanvasView(canvas, parent), moving(0) { }
+signals:
+    void itemClicked(QtCanvasItem *item);
+    void itemMoved(QtCanvasItem *item);
+protected:
+    void contentsMousePressEvent(QMouseEvent *event);
+    void contentsMouseDoubleClickEvent(QMouseEvent *event);
+    void contentsMouseMoveEvent(QMouseEvent* event);
+private:
+    void handleMouseClickEvent(QMouseEvent *event);
+    QPoint moving_start;
+    QtCanvasItem *moving;
+};
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+public:
+    MainWindow(QWidget *parent = 0);
+
+private slots:
+    void newRectangle();
+    void newEllipse();
+    void newLine();
+    void newText();
+    void deleteObject();
+    void clearAll();
+    void fillView();
+
+
+    void itemClicked(QtCanvasItem *item);
+    void itemMoved(QtCanvasItem *item);
+    void valueChanged(QtProperty *property, const QVariant &value);
+private:
+
+    QtCanvasItem *addRectangle();
+    QtCanvasItem *addEllipse();
+    QtCanvasItem *addLine();
+    QtCanvasItem *addText();
+    void addProperty(QtVariantProperty *property, const QString &id);
+    void updateExpandState();
+
+    QAction *deleteAction;
+
+    class QtVariantPropertyManager *variantManager;
+
+    class QtTreePropertyBrowser *propertyEditor;
+    CanvasView *canvasView;
+    QtCanvas *canvas;
+    QtCanvasItem *currentItem;
+    QMap<QtProperty *, QString> propertyToId;
+    QMap<QString, QtVariantProperty *> idToProperty;
+    QMap<QString, bool> idToExpanded;
+};
+
+#endif