CeXDib.h

//
//	Class:		CCeXDib
//
//	Compiler:	Visual C++
//				eMbedded Visual C++
//	Tested on:	Visual C++ 6.0
//				Windows CE 3.0
//
//	Author:		Davide Calabro'		davide_calabro@yahoo.com
//									http://www.softechsoftware.it
//
//	Note:		This class uses code snippets taken from a similar class written
//				for the Win32 enviroment by Davide Pizzolato (ing.davide.pizzolato@libero.it)
//
//	Disclaimer
//	----------
//	THIS SOFTWARE AND THE ACCOMPANYING FILES ARE DISTRIBUTED "AS IS" AND WITHOUT
//	ANY WARRANTIES WHETHER EXPRESSED OR IMPLIED. NO REPONSIBILITIES FOR POSSIBLE
//	DAMAGES OR EVEN FUNCTIONALITY CAN BE TAKEN. THE USER MUST ASSUME THE ENTIRE
//	RISK OF USING THIS SOFTWARE.
//
//	Terms of use
//	------------
//	THIS SOFTWARE IS FREE FOR PERSONAL USE OR FREEWARE APPLICATIONS.
//	IF YOU USE THIS SOFTWARE IN COMMERCIAL OR SHAREWARE APPLICATIONS YOU
//	ARE GENTLY ASKED TO DONATE 1$ (ONE U.S. DOLLAR) TO THE AUTHOR:
//
//		Davide Calabro'
//		P.O. Box 65
//		21019 Somma Lombardo (VA)
//		Italy
//
//
#ifndef _CEXDIB_H_
#define _CEXDIB_H_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#ifndef	HDIB
#define HDIB	HANDLE
#endif

#ifndef WIDTHBYTES
#define WIDTHBYTES(bits)    (((bits) + 31) / 32 * 4)
#endif

#ifndef BFT_BITMAP
#define BFT_BITMAP 0x4d42   // 'BM'
#endif

class CCeXDib  
{
public:
	CCeXDib();
	virtual ~CCeXDib();

	HDIB Create(DWORD dwWidth, DWORD dwHeight, WORD wBitCount);
	void Clone(CCeXDib* src);
	void Draw(HDC hDC, DWORD dwX, DWORD dwY);
	LPBYTE GetBits();
	void Clear(BYTE byVal = 0);

	void SetGrayPalette();
	void SetPaletteIndex(BYTE byIdx, BYTE byR, BYTE byG, BYTE byB);
	void SetPixelIndex(DWORD dwX, DWORD dwY, BYTE byI);
	void BlendPalette(COLORREF crColor, DWORD dwPerc);

	WORD GetBitCount();
	DWORD GetLineWidth();
	DWORD GetWidth();
	DWORD GetHeight();
	WORD GetNumColors();

	BOOL WriteBMP(LPCTSTR bmpFileName);

private:
	void FreeResources();

	DWORD GetPaletteSize();
	DWORD GetSize();

	RGBQUAD RGB2RGBQUAD(COLORREF cr);

	HDIB				m_hDib;
    BITMAPINFOHEADER    m_bi;
	DWORD				m_dwLineWidth;
	WORD				m_wColors;

	HBITMAP				m_hBitmap;	// Handle to bitmap
	HDC					m_hMemDC;	// Handle to memory DC
	LPVOID				m_lpBits;	// Pointer to actual bitmap bits
};

#endif