uimanager.h

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/********************************************************************************/
/*                                                                              */
/*  Netrinjo-Engine - a library for game-development                            */
/*  Copyright (C) 1999, 2000, 2005 by Tobias Nadler and Georg Schnattinger      */
/*                                                                              */
/*  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.          */
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/*  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.                             */
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/*  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 UIMANAGER_H
#define UIMANAGER_H

#include <list>
#include "SDL/SDL.h"
#include "uiobject.h"
#include "tinyxml.h"

using namespace std;

class UiObject;
class UiTheme;

class UiManager : public BasicObject
{
public:
    DECLSPEC UiManager(TiXmlElement*el, BasicObject *p);
    virtual DECLSPEC ~UiManager();

    virtual const char *getClassName()  {return "UiManager";}
    DECLSPEC void loop(bool &stop);
    DECLSPEC void handleEvents();
    DECLSPEC void drawFrame();
    DECLSPEC void setFocus(UiObject::FocusType f, UiObject *obj);
    /* *
    Releases the focus of keyboard, mouse or display from the object,
    if the focus is on the specified object
    \param f the kind of focus to set
    \param obj the object that should be unfocused
    * /
    DECLSPEC bool releaseFocus(FocusType f, UiObject *obj);*/
    DECLSPEC UiObject *getFocus(UiObject::FocusType f);
    
    Uint32 getTimePerFrame() const  { return tPerFrame; }
    Uint32 getFrames() const        { return nFrames; }
    DECLSPEC Uint32 getAvgTimePerFrame() const;

    DECLSPEC void setMaxFramerate( Uint32 n );

    static UiManager *the;
    DECLSPEC static UiManager *getThe();
    
protected:
    virtual DECLSPEC void onInit();
private:
    DECLSPEC void themeChanged( UiTheme *t );

    UiObject *uiKeyboardFocus;
    UiObject *uiMouseFocus;
    UiObject *uiDisplayFocus;
    bool bActive;

    Uint32 tInit, tFrame, tPerFrame;
    Uint32 nFrames;
    Uint32 tMinPerFrame;

//  friend class UiObject;
    friend class ThemeManager;
};

#endif

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