/* _______ __ __ __ ______ __ __ _______ __ __
* / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\
* / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
* / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / /
* / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / /
* /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
* \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
*
* Copyright (c) 2004 - 2008 Olof Naess�n and Per Larsson
*
*
* Per Larsson a.k.a finalman
* Olof Naess�n a.k.a jansem/yakslem
*
* Visit: http://guichan.sourceforge.net
*
* License: (BSD)
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name of Guichan nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef GCN_IMAGE_HPP
#define GCN_IMAGE_HPP
#include <string>
#include "guichan/platform.hpp"
namespace gcn
{
class Color;
class ImageLoader;
/**
* Holds an image. To be able to use this class you must first set an
* ImageLoader in Image by calling
* @code Image::setImageLoader(myImageLoader) @endcode
* The function is static. If this is not done, the constructor taking a
* filename will throw an exception. The ImageLoader you use must be
* compatible with the Graphics object you use.
*
* EXAMPLE: If you use SDLGraphics you should use SDLImageLoader.
* Otherwise your program might crash in a most bizarre way.
* @see AllegroImageLoader, HGEImageLoader, OpenLayerImageLoader,
* OpenGLAllegroImageLoader, OpenGLSDLImageLoader, SDLImageLoader
* @since 0.1.0
*/
class GCN_CORE_DECLSPEC Image
{
public:
/**
* Constructor.
*/
Image();
/**
* Destructor.
*/
virtual ~Image();
/**
* Loads an image by using the class' image loader. All image loaders
* implemented in Guichan return a newly instantiated image which must
* be deleted in order to avoid a memory leak.
*
* NOTE: The functions getPixel and putPixel are only guaranteed to work
* before an image has been converted to display format.
*
* @param filename The file to load.
* @param convertToDisplayFormat True if the image should be converted
* to display, false otherwise.
* @since 0.5.0
*/
static Image* load(const std::string& filename,
bool convertToDisplayFormat = true);
/**
* Gets the image loader used for loading images.
*
* @return The image loader used for loading images.
* @see setImageLoader, AllegroImageLoader, HGEImageLoader,
* OpenLayerImageLoader, OpenGLAllegroImageLoader,
* OpenGLSDLImageLoader, SDLImageLoader
* @since 0.1.0
*/
static ImageLoader* getImageLoader();
/**
* Sets the ImageLoader to be used for loading images.
*
* IMPORTANT: The image loader is static and MUST be set before
* loading images!
*
* @param imageLoader The image loader to be used for loading images.
* @see getImageLoader, AllegroImageLoader, HGEImageLoader,
* OpenLayerImageLoader, OpenGLAllegroImageLoader,
* OpenGLSDLImageLoader, SDLImageLoader
* @since 0.1.0
*/
static void setImageLoader(ImageLoader* imageLoader);
/**
* Frees an image.
*
* @since 0.5.0
*/
virtual void free() = 0;
/**
* Gets the width of the image.
*
* @return The width of the image.
*
* @since 0.1.0
*/
virtual int getWidth() const = 0;
/**
* Gets the height of the image.
*
* @return The height of the image.
*
* @since 0.1.0
*/
virtual int getHeight() const = 0;
/**
* Gets the color of a pixel at coordinate (x, y) in the image.
*
* IMPORTANT: Only guaranteed to work before the image has been
* converted to display format.
*
* @param x The x coordinate.
* @param y The y coordinate.
* @return The color of the pixel.
*
* @since 0.5.0
*/
virtual Color getPixel(int x, int y) = 0;
/**
* Puts a pixel with a certain color at coordinate (x, y).
*
* @param x The x coordinate.
* @param y The y coordinate.
* @param color The color of the pixel to put.
* @since 0.5.0
*/
virtual void putPixel(int x, int y, const Color& color) = 0;
/**
* Converts the image, if possible, to display format.
*
* IMPORTANT: Only guaranteed to work before the image has been
* converted to display format.
* @since 0.5.0
*/
virtual void convertToDisplayFormat() = 0;
protected:
/**
* Holds the image loader to be used when loading images.
*/
static ImageLoader* mImageLoader;
};
}
#endif // end GCN_IMAGE_HPP
