drawobject.h

// Name:    drawobject.h
// Purpose:
// Author:  Moskvichev Andrey V.
// Created: 2008/11/07
// Copyright:   (c) 2008-2010 Moskvichev Andrey V.
// Licence: wxWidgets licence

#ifndef DRAWOBJECT_H_
#define DRAWOBJECT_H_

#include <wx/observable.h>

#define wxNoBrush *wxTheBrushList->FindOrCreateBrush(*wxBLACK, wxTRANSPARENT)
#define wxNoPen *wxThePenList->FindOrCreatePen(*wxBLACK, 1, wxTRANSPARENT)

class WXDLLIMPEXP_FREECHART DrawObject;

class WXDLLIMPEXP_FREECHART DrawObserver
{
public:
    DrawObserver()
    {
    }

    virtual ~DrawObserver()
    {
    }

    virtual void NeedRedraw(DrawObject *obj) = 0;
};

class WXDLLIMPEXP_FREECHART DrawObject : public Observable<DrawObserver>
{
public:
    DrawObject()
    {
    }

    virtual ~DrawObject()
    {
    }

protected:
    FIRE_WITH_THIS(NeedRedraw);
};

#endif /*DRAWOBJECT_H_*/