canvasgesture_resize.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_RESIZE_H
#define CANVAS_GESTURE_RESIZE_H

#include <QRect>

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

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

class SCRIBUS_API ResizeGesture : public CanvasGesture
{
public:
    explicit ResizeGesture (CanvasMode* parent);
    virtual ~ResizeGesture() {}
    
    void prepare(Canvas::FrameHandle framehandle = Canvas::SOUTHEAST);
    void clear();
    
    virtual void drawControls(QPainter* p);
    virtual void activate(bool);
    virtual void deactivate(bool);
    virtual void mouseReleaseEvent(QMouseEvent *m);
    virtual void mouseMoveEvent(QMouseEvent *m);
    virtual void mousePressEvent(QMouseEvent *m);
    
    Canvas::FrameHandle frameHandle() const { return m_handle; }
    
private:
    void adjustBounds(QMouseEvent *m);
    void doResize(bool scaleContent);
    Canvas::FrameHandle m_handle;
    double m_rotation;
    double m_origRatio;
    QPoint m_mousePressPoint;
    QRectF m_bounds;
    QRectF m_origBounds;
    QRectF m_mousePressBounds;
    UndoTransaction m_transaction;
    double m_extraWidth;
    double m_extraHeight;
    double m_extraX;
    double m_extraY;
};


#endif