First commit for sie code generator project.

Software/sie_cg/block_editor/arrow.h

@@ -0,0 +1,124 @@
+/****************************************************************************
+**
+** 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 the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef ARROW_H
+#define ARROW_H
+
+#include <QGraphicsLineItem>
+#include <QtXml>
+#include "diagramtextitem.h"
+#include "diagramscene.h"
+
+QT_BEGIN_NAMESPACE
+class QGraphicsPolygonItem;
+class QGraphicsLineItem;
+class QGraphicsPathItem;
+class QGraphicsScene;
+class QRectF;
+class QGraphicsSceneMouseEvent;
+class QPainterPath;
+QT_END_NAMESPACE
+
+class lineItem;
+class DiagramScene;
+
+class Arrow : public QGraphicsPathItem
+{
+public:
+    enum { Type = UserType + 32 };
+
+    Arrow(QPointF startPoint,QPointF endPoint,
+          QGraphicsItem *parent = 0, QGraphicsScene *scene = 0);
+
+    int type() const
+        { return Type; }
+    QRectF boundingRect() const;
+    QPainterPath shape() const;
+    void setColor(const QColor &color)
+        { myColor=color; }
+
+    void removeLine(lineItem *line);
+    void removeLines();
+    bool addLine(lineItem *line);
+    void setStartPoint(QPointF point){startPoint=point;}
+    void setEndPoint(QPointF point){endPoint=point;}
+
+    QPointF getStartPoint(){return startPoint;}
+    QPointF getEndPoint(){return endPoint;}
+
+    void createCorner(QPointF cornerPos, lineItem *inLine);
+    void createCorner(QPointF cornerPos, int index);
+    void moveCorner(QPointF cornerPos, lineItem *inLine, bool relative = 1);
+
+    void setVisibleCorners(bool visible);
+
+    void snapToGrid(QGraphicsSceneMouseEvent *event);
+
+    QDomDocument toXmlFormat();
+    QDomElement toXml(QDomDocument &) const;
+    void createFirstCorner();
+    void setSelectedArrows();
+
+public slots:
+    void updatePosition();
+
+protected:
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+               QWidget *widget = 0);
+    void mousePressEvent(QGraphicsSceneMouseEvent *event);
+    void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
+    void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
+
+private:
+    QColor myColor;
+    QList<lineItem *> myLines;
+    QList<lineItem *> myCLines;
+    lineItem *SECLine;
+    QPointF startPoint;
+    QPointF endPoint;
+    QList<QPointF> myCorners;
+    QGraphicsScene *myOwnerScene;
+    qreal arrowSize;
+    bool moving;
+    QPointF previousPos;
+};
+
+#endif