guilist.h

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

#include "guibackground.h"
#include "guiscroller.h"
#include <vector>

using namespace std;

class DECLSPEC GuiList : public GuiPictureBg
{
public:
    DECLSPEC GuiList( const SDL_Rect &r, GuiElement *p, const char *name );
    DECLSPEC GuiList(TiXmlElement *el, GuiElement *p);
    virtual DECLSPEC ~GuiList();

    virtual const char *getClassName()  { return "GuiList"; }
    
    DECLSPEC int insertStr( const char* str, int pos = -1 );
    DECLSPEC bool clearStr( int pos = -1 );
    DECLSPEC void clearAll();
    DECLSPEC bool changeStr( const char *newstr, int pos );
    DECLSPEC const char *getStr( int pos ) const;
    DECLSPEC const char *getSelStr() const;
    DECLSPEC int getSelId() const;
    DECLSPEC int getCount() const;
    
    void setSelChangeCallback( Callback c ) { cbSelchanged.func = c; }
    void setCallbackData( BasicObject * d ) { cbSelchanged.obj = d; }
    void setSelected( int i )   { selected = i; }

    static void newguiobject(void *presult, BasicObject *o, void *xmldata)
    {
        GuiElement *r = new GuiList((TiXmlElement*)xmldata, (GuiElement*)o);
        *(GuiElement**)presult = r;
    }
protected:
    virtual DECLSPEC Uint32 onFrame( SdlSurface *dst );
    virtual DECLSPEC Uint32 onResize();
    virtual DECLSPEC Uint32 onMouseDown( SDL_MouseButtonEvent *ev );
    virtual DECLSPEC void onInit();
    virtual DECLSPEC Uint32 onThemeChanged( UiTheme *t );
private:
    typedef vector<char*> strlist;
    typedef strlist::iterator strlist_iter;

    void arrange();
    strlist_iter iterfrompos(int pos);
    void update();
    void updatefromscroller();

    strlist strings;
    int selected;
    int topitem;

    GuiScroller *scroller;
    Uint32 nMaxScroll;
    SdlFont *font, *fontSel;

    FunctionData cbSelchanged;

    static inline void ontopitemchanged(void*, BasicObject *data, void*)
    {
        GuiList *list = (GuiList*)data;
        list->updatefromscroller();
    }
};

#endif

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