// ****************************************************************************
//
// WINIMAGE.H : Generic classes for raster images (MSWindows specialization)
//
// Content: Class declarations of:
// - class C_Image             : Storage class for single images
// - class C_ImageSet          : Storage class for sets of images
// - class C_AnimationWindow   : Window Class to display animations
//
// (Includes declarations of routines to Load and Save BMP files and to load
// GIF files into these classes).
//
//  --------------------------------------------------------------------------
//
// Copyright ?2000, Juan Soulie <jsoulie@cplusplus.com>
//
// Permission to use, copy, modify, distribute and sell this software or any
// part thereof and/or its documentation for any purpose is granted without fee
// provided that the above copyright notice and this permission notice appear
// in all copies.
//
// This software is provided "as is" without express or implied warranty of
// any kind. The author shall have no liability with respect to the
// infringement of copyrights or patents that any modification to the content
// of this file or this file itself may incur.
//
// ****************************************************************************

#ifdef _WIN32
#pragma pack(1)
#endif

// Windows specific types and constants:
#include <windows.h>
struct COLOR {unsigned char b,g,r,x;};	// Windows GDI expects 4bytes per color
#define ALIGN sizeof(int)				// Windows GDI expects all int-aligned

// ****************************************************************************
// * C_Image                                                                  *
// *    Storage class for single images                                       *
// ****************************************************************************
class C_Image {
public:
	// standard members:
	int Width, Height;			// Dimensions in pixels
	int BPP;					// Bits Per Pixel	
	char * Raster;				// Bits of Raster Data (Byte Aligned)
	COLOR * Palette;			// Color Map
	int BytesPerRow;			// Width (in bytes) including alignment!
	int Transparent;			// Index of Transparent color (-1 for none)
	// Extra members for animations:
	int xPos, yPos;				// Relative Position
	int Delay;					// Delay after image in 1/1000 seconds.
	int Transparency;			// Animation Transparency.
	// Windows GDI specific:
	BITMAPINFO * pbmi;			// BITMAPINFO structure

	// constructor and destructor:
	C_Image() { Raster=0; Palette=0; pbmi=0; }
	~C_Image() { delete[]pbmi; delete[]Raster; }

	// operator= (object copy)
	C_Image& operator= (C_Image& rhs);

	// Image initializer (allocates space for raster and palette):
	void Init (int iWidth, int iHeight, int iBPP);

	inline char& Pixel (const int& x, const int& y)
		{return Raster[y*BytesPerRow+x];}

	// Windows GDI Specific function to paint the image on a DC:
	int GDIPaint (HDC hdc, int xDest, int yDest,int iWidth,int iHeight);

	// File Formats:
	int LoadBMP (char* szFile);
	int SaveBMP (char* szFile);
};

// ****************************************************************************
// * C_ImageSet                                                               *
// *    Storage class for sets of images                                      *
// ****************************************************************************
class C_ImageSet {
public:
	int FrameWidth, FrameHeight;	// Dimensions of ImageSet in pixels.
	int nLoops;						// Number of Loops (0 = infinite)

	C_Image ** img;				// Images' Vector.
	int nImages;					// Number of images (vector size)

	void AddImage (C_Image*);		// Append new image to vector (push_back)

	// constructor and destructor:
	C_ImageSet() {img=0; nImages=0; nLoops=0;}
	~C_ImageSet() ;

	// File Formats:
	int LoadGIF (char* szFile);
	int SaveGIF (char* szFile) {return 0;};	// NOT IMPLEMENTED
    void ApplyTransparency (C_Image *pImage, short nColorIndex);
	void Reset();
};