canvasmode_editpolygon.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.                                   *
*                                                                         *
***************************************************************************/
/***************************************************************************
                 canvasmode_editpolygon.h  -  description
                             -------------------
    begin                : Wed Jan 12 2011
    copyright            : (C) 2011 by Franz Schmid
    email                : Franz.Schmid@altmuehlnet.de
 ***************************************************************************/

#ifndef CANVAS_MODE_EDITPOLYGON_H
#define CANVAS_MODE_EDITPOLYGON_H

#include <QObject>
#include <QTime>

#include "canvasmode.h"
#include "fpointarray.h"
#include "ui/polyprops.h"
#include "undotransaction.h"

class PageItem;
class ScribusMainWindow;
class ScribusView;


// This class encapsulate the old code for mouse interaction from scribusview.cpp

class CanvasMode_EditPolygon :  public CanvasMode
{
    Q_OBJECT
public:
    explicit CanvasMode_EditPolygon(ScribusView* view);
    virtual ~CanvasMode_EditPolygon() {}

    virtual void enterEvent(QEvent *);
    virtual void leaveEvent(QEvent *);
    
    virtual void activate(bool);
    virtual void deactivate(bool);
    virtual void mouseDoubleClickEvent(QMouseEvent *m);
    virtual void mouseReleaseEvent(QMouseEvent *m);
    virtual void mouseMoveEvent(QMouseEvent *m);
    virtual void mousePressEvent(QMouseEvent *m);
    virtual void drawControls(QPainter* p);
    void drawControlsPolygon(QPainter* pp, PageItem* currItem);

private:

    typedef enum 
    {
        noPointDefined,
        useControlOuter,
        useControlInner,
        useControlInnerCurve,
        useControlOuterCurve
    } ePolygonPoint;

    inline bool GetItem(PageItem** pi);
    double GetZeroFactor();
    double GetMaxFactor();
    double getUserValFromFactor(double factor);

    double Mxp, Myp;
    ScribusMainWindow* m_ScMW;
    QPointF startPoint;
    QPointF endPoint;
    QPointF centerPoint;
    QPointF innerCPoint;
    QPointF outerCPoint;
    int polyCorners;
    bool polyUseFactor;
    double polyFactor;
    double polyRotation;
    double polyCurvature;
    double polyInnerRot;
    double polyOuterCurvature;
    ePolygonPoint m_polygonPoint;
    PolyVectorDialog *VectorDialog;
    UndoTransaction m_transaction;

    int    m_blockUpdateFromItem;
    void   blockUpdateFromItem(bool block) { if (block) ++m_blockUpdateFromItem; else --m_blockUpdateFromItem; }
    bool   updateFromItemBlocked() { return (m_blockUpdateFromItem > 0); }

public slots:
    void applyValues(int polyC, double polyF, bool polyUseCF, double polyR, double polyCur, double polyIRot, double polyOCur);
    void updateFromItem();
    void endEditing(bool active);
    void endEditing();
};


#endif