toolbarstate.h

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/***************************************************************************
 *   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) any later version.                                   *
 *                                                                         *
 *   copyright (C) 2004-2013                                               *
 *   Umbrello UML Modeller Authors <umbrello-devel@kde.org>                *
 ***************************************************************************/

#ifndef TOOLBARSTATE_H
#define TOOLBARSTATE_H

#include <QEvent>
#include <QObject>
#include <QPointF>

class AssociationWidget;
class FloatingDashLineWidget;
class MessageWidget;
class QGraphicsSceneMouseEvent;
class UMLScene;
class UMLWidget;

class ToolBarState: public QObject
{
    Q_OBJECT
public:
    virtual ~ToolBarState();

    virtual void init();

    virtual void cleanBeforeChange();

    virtual void mousePress(QGraphicsSceneMouseEvent* ome);
    virtual void mouseRelease(QGraphicsSceneMouseEvent* ome);
    virtual void mouseDoubleClick(QGraphicsSceneMouseEvent* ome);
    virtual void mouseMove(QGraphicsSceneMouseEvent* ome);

public slots:
    virtual void slotAssociationRemoved(AssociationWidget* association);
    virtual void slotWidgetRemoved(UMLWidget* widget);

protected:
    ToolBarState(UMLScene* umlScene);

    virtual void setCurrentElement();

    virtual void mousePressAssociation();
    virtual void mousePressWidget();
    virtual void mousePressEmpty();
    virtual void mouseReleaseAssociation();
    virtual void mouseReleaseWidget();
    virtual void mouseReleaseEmpty();
    virtual void mouseDoubleClickAssociation();
    virtual void mouseDoubleClickWidget();
    virtual void mouseDoubleClickEmpty();
    virtual void mouseMoveAssociation();
    virtual void mouseMoveWidget();
    virtual void mouseMoveEmpty();

    virtual void changeTool();

    virtual UMLWidget* currentWidget() const;
    virtual void setCurrentWidget(UMLWidget* widget);

    virtual AssociationWidget* currentAssociation() const;
    virtual void setCurrentAssociation(AssociationWidget* association);

    void setMouseEvent(QGraphicsSceneMouseEvent* ome, const QEvent::Type &type);

    AssociationWidget* associationAt(const QPointF& pos);
    MessageWidget* messageAt(const QPointF& pos);
    FloatingDashLineWidget* floatingLineAt(const QPointF& pos);

    UMLScene*                 m_pUMLScene;     
    QGraphicsSceneMouseEvent* m_pMouseEvent;   
    // This event is the equivalent of the received event after transforming it
    // using the inverse world matrix in the UMLScene.

private:
    UMLWidget*          m_currentWidget;       
    AssociationWidget*  m_currentAssociation;  

};

#endif //TOOLBARSTATE_H