- Your Widget Set For OpenGL

---

uabstractcontext.hpp

/***************************************************************************
    LibUFO - UI For OpenGL
    copyright         : (C) 2001-2005 by Johannes Schmidt
    email             : schmidtjf at users.sourceforge.net
                             -------------------

    file              : include/ufo/uabstractcontext.hpp
    begin             : Fri Aug 16 2002
    $Id: uabstractcontext.hpp,v 1.21 2005/05/21 15:17:23 schmidtjf Exp $
 ***************************************************************************/

/***************************************************************************
 *  This library is free software; you can redistribute it and/or          *
 * modify it under the terms of the GNU Lesser General Public              *
 * License as published by the Free Software Foundation; either            *
 * version 2.1 of the License, or (at your option) any later version.      *
 *                                                                         *
 * This library is distributed in the hope that it will be useful,         *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of          *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU       *
 * Lesser General Public License for more details.                         *
 *                                                                         *
 * You should have received a copy of the GNU Lesser General Public        *
 * License along with this library; if not, write to the Free Software     *
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
 ***************************************************************************/

#ifndef UABSTRACTCONTEXT_HPP
#define UABSTRACTCONTEXT_HPP

#include "ucontext.hpp"

namespace ufo {

class UEvent;
class UMouseEvent;
class UMouseWheelEvent;
class UKeyEvent;

class UWidget;
class UAbstractGraphics;


class UFO_EXPORT UAbstractContext : public UContext {
    UFO_DECLARE_ABSTRACT_CLASS(UAbstractContext)
public: // c'tors / d'tors
    UAbstractContext(UAbstractContext * parent);
    virtual ~UAbstractContext();

public: // Implements UContext
    virtual UContextGroup * getContextGroup() const;
    virtual UContext * getParent() const;
    virtual UUIManager * getUIManager() const;
    virtual UGraphics * getGraphics() const;
    virtual URepaintManager * getRepaintManager() const;

    virtual bool getSystemInfo(USystemInfo * info) const;

    virtual URootPane * getRootPane() const;
    virtual void setRootPane(URootPane * paneA);

    virtual UImage * createImage(UImageIO * imageIO);
    virtual UImage * createImage(const std::string & fileName);


public: // Implements UContext
    virtual void dispatchEvent(UEvent * e);

    virtual void setEventGrabber(const USlot1<UEvent*> & slot);//, UEvent::Type type);
    virtual void releaseEventGrabber();
    virtual USlot1<UEvent*> * getEventGrabber() const;

    virtual void connectListener(const USlot1<UEvent*> & slot);
    virtual void disconnectListener(const USlot1<UEvent*> & slot);
    virtual std::list<USlot1<UEvent*> > getListeners() const;

    virtual UInputMap * getInputMap();
    virtual void setInputMap(UInputMap * newMap);

public: // Implements UContext
    virtual void setDeviceBounds(const URectangle & rect);
    virtual URectangle getDeviceBounds() const;

    virtual void setContextBounds(const URectangle & rect);
    virtual URectangle getContextBounds() const;

    virtual void init();
    virtual void refresh();
    virtual void dispose();

protected: // Private methods
    virtual UGraphics * createGraphics();
    virtual URepaintManager * createRepaintManager();

    virtual void fireMouseEvent(UMouseEvent * e);
    virtual void fireMouseMotionEvent(UMouseEvent * e);
    virtual void fireMouseWheelEvent(UMouseWheelEvent * e);
    virtual void fireKeyEvent(UKeyEvent * e);

private: // Private functions
    bool send(UWidget * receiver, UEvent * e);
    void sendToGrabber(UEvent * e);

protected: // Protected attributes
    UContextGroup * m_contextGroup;
    UUIManager * m_uiManager;
    URootPane * m_rootPane;

private: // Private attributes
    UAbstractContext * m_parent;
    UGraphics * m_graphics;
    URepaintManager * m_repaintManager;
    UInputMap * m_inputMap;

    URectangle m_deviceBounds;
    URectangle m_bounds;

    UWidget * m_dragWidget;

    USlot1<UEvent*> * m_eventGrabber;
    UPoint m_posBeforeGrabbing;
    UPoint m_posAfterGrabbing;

    typedef std::list<USlot1<UEvent*> > ListenerList;
    typedef std::list<USlot1<UEvent*> >::iterator ListenerIterator;

    ListenerList m_listeners;
};

} // namespace ufo

#endif // UABSTRACTCONTEXT_HPP

---