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/*
* The ManaPlus Client
* Copyright (C) 2004-2009 The Mana World Development Team
* Copyright (C) 2009-2010 The Mana Developers
* Copyright (C) 2011-2012 The ManaPlus Developers
*
* This file is part of The ManaPlus Client.
*
* 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
* any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef IMAGEHELPER_H
#define IMAGEHELPER_H
#include "localconsts.h"
#include "resources/resource.h"
#include <SDL.h>
class Dye;
class Image;
struct Position;
/**
* Defines a class for loading and storing images.
*/
class ImageHelper
{
friend class CompoundSprite;
friend class Image;
public:
virtual ~ImageHelper()
{ }
/**
* Loads an image from an SDL_RWops structure.
*
* @param rw The SDL_RWops to load the image from.
*
* @return <code>NULL</code> if an error occurred, a valid pointer
* otherwise.
*/
Resource *load(SDL_RWops *rw);
/**
* Loads an image from an SDL_RWops structure and recolors it.
*
* @param rw The SDL_RWops to load the image from.
* @param dye The dye used to recolor the image.
*
* @return <code>NULL</code> if an error occurred, a valid pointer
* otherwise.
*/
virtual Resource *load(SDL_RWops *rw, Dye const &dye) = 0;
/**
* Loads an image from an SDL surface.
*/
virtual Image *load(SDL_Surface *) = 0;
virtual Image *createTextSurface(SDL_Surface *tmpImage,
float alpha) = 0;
virtual int useOpenGL() = 0;
SDL_Surface *convertTo32Bit(SDL_Surface* tmpImage);
void dumpSurfaceFormat(SDL_Surface *image);
static void setEnableAlpha(bool n)
{ mEnableAlpha = n; }
protected:
static bool mEnableAlpha;
};
extern ImageHelper *imageHelper;
#endif
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