www.pudn.com > Cimage.zip > CIMAGEB.H

/* 
 * File:	cimageb.h 
 * Purpose:	Declaration of the Platform Independent Image Class 
 * Author:	Alejandro Aguilar Sierra 
 * Created:	1995 
 * Description: This class adds drawing routines and color map management. 
 * 
 * Copyright:	(c) 1995, Alejandro Aguilar Sierra  
 */ 
#ifndef CIMAGEBH 
#define CIMAGEBH 
 
#include "stdafx.h" 
#include "cmap.h" 
 
#define CIMAGE_COLORS DIB_PAL_COLORS 
 
#define CIMAGE_SUPPORT_BMP 1 
#define CIMAGE_SUPPORT_GIF 1 
#define CIMAGE_SUPPORT_JPEG 1 
#define CIMAGE_SUPPORT_PNG  1 
#define CIMAGE_SUPPORT_XPM  1 
 
#ifndef byte 
typedef unsigned char byte; 
#endif 
 
#ifdef WIN32 
typedef byte* ImagePointerType; 
#else 
typedef byte huge* ImagePointerType; 
#endif 
 
typedef struct 
{ 
	byte red; 
	byte green; 
   byte blue; 
} rgb_color_struct; 
 
#ifndef byte 
typedef unsigned char byte; 
#endif 
 
#define COLORTYPE_PALETTE	1 
#define COLORTYPE_COLOR		2 
#define COLORTYPE_ALPHA		4 
 
class CImageImpl 
{ 
protected: 
  ImagePointerType RawImage;  		//  Image data 
 
  int Width, Height;   		//  Dimensions 
  int Depth;	 				// (bits x pixel) 
  int ColorType;				// Bit 1 = Palette used 
									// Bit 2 = Color used 
									// Bit 3 = Alpha used 
 
  long EffWidth;	 			// Effective Width 
  LPBITMAPINFOHEADER lpbi; 
  int bgindex; 
  CImagePalette* imagePalette; 
 
friend class CImageIterator; 
public: 
// Constructors 
  CImageImpl(); 
  CImageImpl(int width, int height, int depth, int colortype=-1); 
  CImageImpl( const CImageImpl *ima ); 
 
  // Destructor 
  virtual ~CImageImpl(); 
 
  //  Image Information 
  int  GetWidth( void ) const { return Width; }; 
  int  GetHeight( void ) const { return Height; }; 
  int  GetDepth( void ) const { return Depth; }; 
  int  GetColorType( void ) const { return ColorType; }; 
 
  virtual BOOL Inside(int x, int y); 
 
  virtual void Create(int width, int height, int deep, int colortype=-1); 
 
  // Drawing routines 
  BOOL Draw(CDC *dc, int x=0, int y=0, int dx=-1, int dy=-1, int xs=0, int ys=0); 
  BOOL Stretch(CDC *dc, int xd=0, int yd=0, int dxd=-1, int dyd=-1, 
	 int xs=0, int ys=0, int dxs=-1, int dys=-1); 
 
  virtual int  GetIndex(int x, int y); 
  virtual BOOL GetRGB(int x, int y, byte* r, byte* g, byte* b); 
 
  virtual BOOL SetIndex(int x, int y, int index); 
  virtual BOOL SetRGB(int x, int y, byte r, byte g, byte b); 
 
// ColorMap settings 
  BOOL SetPalette(CImagePalette* palette); 
  BOOL SetPalette(int n, rgb_color_struct *rgb_struct); 
  BOOL SetPalette(int n, byte *r, byte *g=0, byte *b=0); 
  CImagePalette* GetPalette() const { return imagePalette; } 
   
  inline ImagePointerType GetRawImage() { return RawImage; } 
  inline LPBITMAPINFOHEADER GetBits() { return lpbi; } 
  inline long GetEffWidth() { return EffWidth; } 
 
  virtual BOOL ReadFile(const CString& imageFileName="") { return FALSE; } 
  virtual BOOL SaveFile(const CString& imageFileName="") { return FALSE; } 
 
  // 'Copy' the raw image data et. from 'from' to 'this'. NULLify these attributes 
  // in 'from' so we can then delete it without deleting the raw image data. 
  void TransferBits(CImageImpl *from); 
}; 
 
 
inline 
CImageImpl::CImageImpl(): /*ImaBase(),*/ imagePalette(0), lpbi(0) 
{ 
  RawImage = 0;  
  Width = Height = 0; 
  Depth = 0; 
  ColorType = 0; 
  bgindex = -1; 
} 
 
inline 
CImageImpl::CImageImpl(int width, int height, int depth, int colortype): imagePalette(0), lpbi(0) 
{ 
  Width = Height = 0; 
  Depth = 0; 
  ColorType = 0; 
  bgindex = -1; 
  RawImage = 0; 
  Create(width, height, depth, colortype); 
} 
 
 
inline 
CImageImpl::CImageImpl( const CImageImpl *ima ): imagePalette(0), lpbi(0) 
{ 
  bgindex = -1; 
 
  if (ima) { 
	 Create(ima->GetWidth(), ima->GetHeight(), ima->GetDepth(), ima->GetColorType()); 
     if (ima->GetPalette()) 
	   SetPalette(new CImagePalette(ima->GetPalette())); 
  } 
} 
 
inline 
BOOL CImageImpl::Inside(int x, int y) 
{ 
  return (0<=y && y