www.pudn.com > BmpDlg_Source.zip > dib256.h

///////////////////////////////////////////////////////////////////////////// 
// Copyright (C) 1998 by Jörg König 
// All rights reserved 
// 
// This file is part of the completely free tetris clone "CGTetris". 
// 
// This is free software. 
// You may redistribute it by any means providing it is not sold for profit 
// without the authors written consent. 
// 
// No warrantee of any kind, expressed or implied, is included with this 
// software; use at your own risk, responsibility for damages (if any) to 
// anyone resulting from the use of this software rests entirely with the 
// user. 
// 
// Send bug reports, bug fixes, enhancements, requests, flames, etc., and 
// I'll try to keep a version up to date.  I can be reached as follows: 
//    J.Koenig@adg.de                 (company site) 
//    Joerg.Koenig@rhein-neckar.de    (private site) 
///////////////////////////////////////////////////////////////////////////// 
 
 
#ifndef DIB256_h 
#define DIB256_h 
 
 
class CDIBitmap 
{ 
	friend class CBmpPalette; 
 
	BITMAPINFO *	m_pInfo; 
	BYTE *			m_pPixels; 
	CBmpPalette *	m_pPal; 
	BOOL			m_bIsPadded; 
 
	public:		//constructors 
		CDIBitmap(); 
		virtual ~CDIBitmap(); 
 
	private: 
		CDIBitmap( const CDIBitmap& dbmp ); 
 
	public:		// attributes 
		BITMAPINFO *	GetHeaderPtr() const; 
		BYTE *			GetPixelPtr() const; 
		RGBQUAD *		GetColorTablePtr() const; 
		int				GetWidth() const; 
		int				GetHeight() const; 
		CBmpPalette *	GetPalette() { return m_pPal; } 
 
	public:		// operations 
		BOOL			CreatePalette();	// auto. made by "Load()" and "CreateFromBitmap()" 
		void			ClearPalette();		// destroy the palette associated with this image 
		BOOL			CreateFromBitmap( CDC *, CBitmap * ); 
		BOOL			LoadResource(LPCTSTR ID); 
		BOOL			LoadResource(UINT ID) { return LoadResource(MAKEINTRESOURCE(ID)); } 
		BOOL			LoadBitmap(UINT ID) { return LoadResource(ID); } 
		BOOL			LoadBitmap(LPCTSTR ID) { return LoadResource(ID); } 
		void			DestroyBitmap(); 
		BOOL			DeleteObject() { DestroyBitmap(); return TRUE; } 
		 
	public:		// overridables 
			// draw the bitmap at the specified location 
		virtual void	DrawDIB( CDC * pDC, int x=0, int y=0 ); 
 
			// draw the bitmap and stretch/compress it to the desired size 
		virtual void	DrawDIB( CDC * pDC, int x, int y, int width, int height ); 
 
			// draw parts of the dib into a given area of the DC 
		virtual int		DrawDIB( CDC * pDC, CRect & rectDC, CRect & rectDIB ); 
 
			// load a bitmap from disk 
		virtual BOOL	Load( CFile * pFile ); 
		virtual BOOL	Load( const CString & ); 
 
			// save the bitmap to disk 
		virtual BOOL	Save( CFile * pFile ); 
		virtual BOOL	Save( const CString & ); 
 
	protected: 
		int				GetPalEntries() const; 
		int				GetPalEntries( BITMAPINFOHEADER& infoHeader ) const; 
		DWORD			GetBitsPerPixel() const; 
		DWORD			LastByte( DWORD BitsPerPixel, DWORD PixelCount ) const; 
		DWORD			GetBytesPerLine( DWORD BitsPerPixel, DWORD Width ) const; 
		BOOL			PadBits(); 
		BOOL			UnPadBits(); 
		WORD			GetColorCount() const; 
}; 
 
#include "dibpal.h" 
 
#endif	// DIB256_h