93 lines
3.1 KiB
C++
93 lines
3.1 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
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** of its contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef DIAGRAMITEM_H
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#define DIAGRAMITEM_H
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#include <QGraphicsPixmapItem>
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#include <QList>
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QT_BEGIN_NAMESPACE
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class QPixmap;
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class QGraphicsItem;
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class QGraphicsScene;
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class QTextEdit;
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class QGraphicsSceneMouseEvent;
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class QMenu;
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class QGraphicsSceneContextMenuEvent;
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class QPainter;
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class QStyleOptionGraphicsItem;
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class QWidget;
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class QPolygonF;
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QT_END_NAMESPACE
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class Arrow;
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//! [0]
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class DiagramItem : public QGraphicsPolygonItem
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{
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public:
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enum { Type = UserType + 15 };
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enum DiagramType { Step, Conditional, StartEnd, Io };
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DiagramItem(DiagramType diagramType, QMenu *contextMenu, QGraphicsItem *parent = 0);
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void removeArrow(Arrow *arrow);
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void removeArrows();
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DiagramType diagramType() const { return myDiagramType; }
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QPolygonF polygon() const { return myPolygon; }
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void addArrow(Arrow *arrow);
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QPixmap image() const;
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int type() const { return Type;}
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protected:
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void contextMenuEvent(QGraphicsSceneContextMenuEvent *event);
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QVariant itemChange(GraphicsItemChange change, const QVariant &value);
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private:
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DiagramType myDiagramType;
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QPolygonF myPolygon;
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QMenu *myContextMenu;
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QList<Arrow *> arrows;
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};
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//! [0]
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#endif // DIAGRAMITEM_H
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