GUIDanielPerspectiveChanger.h

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// A class that allows to steer the visual output in dependence to
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// SUMO, Simulation of Urban MObility; see http://sumo.sourceforge.net/
// Copyright 2001-2010 DLR (http://www.dlr.de/) and contributors
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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.
//
/****************************************************************************/
#ifndef GUIDanielPerspectiveChanger_h
#define GUIDanielPerspectiveChanger_h


// ===========================================================================
// included modules
// ===========================================================================
#ifdef _MSC_VER
#include <windows_config.h>
#else
#include <config.h>
#endif

#include <utils/geom/Position2D.h>
#include "GUIPerspectiveChanger.h"


// ===========================================================================
// class declarations
// ===========================================================================
class Boundary;


// ===========================================================================
// class definitions
// ===========================================================================
class GUIDanielPerspectiveChanger :
            public GUIPerspectiveChanger {
public:
    GUIDanielPerspectiveChanger(GUISUMOAbstractView &callBack);

    ~GUIDanielPerspectiveChanger();

    void onLeftBtnPress(void *data);
    bool onLeftBtnRelease(void *data);
    void onRightBtnPress(void *data);
    bool onRightBtnRelease(void *data);
    void onMouseWheel(void *data);
    void onMouseMove(void *data);

    virtual SUMOReal getRotation() const;

    virtual SUMOReal getXPos() const;

    virtual SUMOReal getYPos() const;

    virtual SUMOReal getZoom() const;

    void recenterView();

    void centerTo(const Boundary &netBoundary,
                  const Position2D &pos, SUMOReal radius, bool applyZoom=true);

    void centerTo(const Boundary &netBoundary,
                  Boundary bound, bool applyZoom=true);

    void setViewport(SUMOReal zoom, SUMOReal xPos, SUMOReal yPos);

private:
    void move(int xdiff, int ydiff);

    void zoom(int diff);

    void rotate(int diff);

private:
    Position2D myViewCenter;

    int myWidthInPixels, myHeightInPixels;

    SUMOReal myNetScale;

    SUMOReal myRotation;

    SUMOReal myZoom;

    int myMouseButtonState;

    bool myMoveOnClick;

};


#endif

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