#ifndef _OF_IMAGE_H_
#define _OF_IMAGE_H_

#include "ofConstants.h"
#include "ofTexture.h"
#include "ofGraphics.h"
#include "ofAppRunner.h"		// for height()
#include "FreeImage.h"
#include "ofUtils.h"

typedef struct {

	unsigned char * pixels;
	int width;
	int height;

	int		bitsPerPixel;		// 8 = gray, 24 = rgb, 32 = rgba
	int		bytesPerPixel;		// 1, 3, 4 bytes per pixels
	GLint	glDataType;			// GL_LUMINANCE, GL_RGB, GL_RGBA
	int		ofImageType;		// OF_IMAGE_GRAYSCALE, OF_IMAGE_COLOR, OF_IMAGE_COLOR_ALPHA
	bool	bAllocated;

} ofPixels;


//----------------------------------------------------
// freeImage based stuff:
void 	ofCloseFreeImage();		// when we exit, we shut down ofImage


//----------------------------------------------------
class ofImage : public ofBaseDraws, public ofBaseHasTexture, public ofBaseHasPixels{

	public :

		ofImage();
		virtual ~ofImage();

		// alloation / deallocation routines
		void 				allocate(int w, int h, int type);
		void 				clear();

		// default copy overwriting (for = or std::vector)
		ofImage(const ofImage& mom);
		ofImage& operator= (const ofImage& mom);

		// copying:
		void 				clone(const ofImage &mom);

		// enable or disable using the texture of this image
		void 				setUseTexture(bool bUse);

		//for getting a reference to the texture
		ofTexture & getTextureReference();

		// file loading / saving
		bool 				loadImage(string fileName);
		void 				saveImage(string fileName);

		// getting the data
		unsigned char * 	getPixels();			// up to you to get this right

		// alter the image
		void 				setFromPixels(unsigned char * pixels, int w, int h, int newType, bool bOrderIsRGB = true);
		void 				setImageType(int type);
		void 				resize(int newWidth, int newHeight);
		void 				grabScreen(int x, int y, int w, int h);		// grab pixels from opengl, using glreadpixels

		// if you've altered the pixels (from getPixels()) call update() to see a change:
		void				update();

		
		//the anchor is the point the image is drawn around. 
		//this can be useful if you want to rotate an image around a particular point. 
        void				setAnchorPercent(float xPct, float yPct);	//set the anchor as a percentage of the image width/height ( 0.0-1.0 range )
        void				setAnchorPoint(int x, int y);				//set the anchor point in pixels
        void				resetAnchor();								//resets the anchor to (0, 0)

		// draw:
		void 				draw(float x, float y, float w, float h);
		void 				draw(float x, float y);

		float 				getHeight();
		float 				getWidth();

		int 				width, height, bpp;		// w,h, bits per pixel
		int					type;					// OF_IMAGE_GRAYSCALE, OF_IMAGE_COLOR, OF_IMAGE_COLOR_ALPHA

	protected:

		// freeImage related functionality:

		bool				loadImageIntoPixels(string fileName, ofPixels &pix);
		void				saveImageFromPixels(string fileName, ofPixels &pix);
		void				changeTypeOfPixels(ofPixels &pix, int newType);
		void				resizePixels(ofPixels &pix, int newWidth, int newHeight);
		FIBITMAP *			getBmpFromPixels(ofPixels &pix);
		void				putBmpIntoPixels(FIBITMAP * bmp, ofPixels &pix);

		// utils:
		inline void			allocatePixels(ofPixels &pix, int width, int height, int bpp);
		inline void			swapRgb(ofPixels &pix);

		ofPixels			myPixels;
		bool				bUseTexture;
		ofTexture			tex;



};



#endif
