canvasgesture_linemove.h

/*
 For general Scribus (>=1.3.2) copyright and licensing information please refer
 to the COPYING file provided with the program. Following this notice may exist
 a copyright and/or license notice that predates the release of Scribus 1.3.2
 for which a new license (GPL+exception) is in place.
 */
/***************************************************************************
*                                                                         *
*   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.                                   *
*                                                                         *
***************************************************************************/



#ifndef CANVAS_GESTURE_LINEMOVE_H
#define CANVAS_GESTURE_LINEMOVE_H

#include <QRectF>

#include "scribusapi.h"
#include "canvasgesture.h"
#include "canvasmode.h"

class QDragEnterEvent;
class QDragMoveEvent;
class QDragLeaveEvent;
class QDropEvent;
class QEvent;
class QInputMethodEvent;
class QMouseEvent;
class QKeyEvent;
class QPainter;
class QRubberBand;
class PageItem;
class PageItem_Line;

class SCRIBUS_API LineMove : public CanvasGesture
{
public:
    explicit LineMove (CanvasMode* parent): CanvasGesture(parent), m_haveLineItem(false), m_bounds(0,0,0,0) {}
    virtual ~LineMove() {}
    
    void prepare(QPointF start, QPointF end);
    
    void prepare(PageItem_Line* line, bool useOriginAsEndpoint = false);
    
    void clear();
    
    virtual void activate(bool);
    virtual void deactivate(bool);
    virtual void mouseReleaseEvent(QMouseEvent *m);
    virtual void mouseMoveEvent(QMouseEvent *m);
    virtual void mousePressEvent(QMouseEvent *m);
    virtual void drawControls(QPainter*);
    
    void setStartPoint(QPointF canvasStart);
    void setEndPoint(QPointF canvasEnd);

    QPointF startPoint() const { return m_bounds.topLeft(); }
    QPointF endPoint() const { return m_bounds.bottomRight(); }

    bool haveLineItem() const { return m_haveLineItem; }
    
private:
    bool      m_haveLineItem;
    bool      m_useOriginAsEndpoint;
    QRectF    m_bounds;
    QRectF    m_initialBounds;
    PageItem* m_line;
    void adjustBounds(QMouseEvent* m, bool updateCanvas = true);
    void doResize();
    void setRotation(double rot);
    double rotation() const;
    double length() const;
};


#endif