dib.cpp

本光盘包含了《精通Visual C++图像处理编程(第3版)》一书中全部的源代码、示例程序的可执行文件以及一些供图像处理测试用的图像文件。

						   x+i+nDeta, 
						   y+GetHeight());
			pDC->Rectangle(x+GetWidth()-i,
						   y,
						   x+GetWidth(), 
						   y+GetHeight());
			i += nDeta;
			break;
		case EFFECT_MOVEDOWN:
		{
			i += nDeta;
			if (i > GetHeight())
			{
				i = GetHeight();
				bDone = TRUE;
			}
			pDC->BitBlt(x,  			//x dest
						y+i,		//y dest
      					GetWidth(),		//width
						GetHeight()-i,	//depth
						&MemDC,
						0,				//x source
						0,			//y source
						SRCCOPY);

			pDC->Rectangle(x, y+i-nDeta,
						   x+GetWidth(), y+i);
			break;
		}
		case EFFECT_MOVEUP:
		{
			i += nDeta;
			if (i > GetHeight())
			{
				i = GetHeight();
				bDone = TRUE;
			}
			pDC->BitBlt(x,  			//x dest
						y,		//y dest
	      				GetWidth(),		//width
						GetHeight()-i,	//depth
						&MemDC,
						0,				//x source
						i,			//y source
						SRCCOPY);

			pDC->Rectangle( x,
							y+GetHeight()-i,
							x+GetWidth(),
							y+GetHeight());
			break;
		}
		case EFFECT_MOVERIGHT:
		{
			i += nDeta;
			if (i > GetWidth())
			{
				i = GetWidth();
				bDone = TRUE;
			}
			pDC->BitBlt(x+i,  			//x dest
						y,		//y dest
      					GetWidth()-i,		//width
						GetHeight(),	//depth
						&MemDC,
						0,				//x source
						0,			//y source
						SRCCOPY);

			pDC->Rectangle(x+i-nDeta, y,
						   x+i, y+GetHeight());
			break;
		}
		case EFFECT_MOVELEFT:
		{
			i += nDeta;
			if (i > GetWidth())
			{
				i = GetWidth();
				bDone = TRUE;
			}
			pDC->BitBlt(x,  			//x dest
						y,		//y dest
	      				GetWidth()-i,		//width
						GetHeight(),	//depth
						&MemDC,
						i,			//y source
						0,				//x source
						SRCCOPY);

			pDC->Rectangle( x+GetWidth()-i,
							y,
							x+GetWidth(),
							y+GetHeight());
			break;
		}
		case EFFECT_VCROSSMOVE:
		{
			i += nDeta;
			if (i > GetHeight())
			{
				i = GetHeight();
				bDone = TRUE;
			}
			pDC->BitBlt(x,  			//x dest
						y+i,		//y dest
      					GetWidth()/2,		//width
						GetHeight()-i,	//depth
						&MemDC,
						0,				//x source
						0,			//y source
						SRCCOPY);

			pDC->Rectangle(x, y+i-nDeta,
						   x+GetWidth()/2, y+i);

			pDC->BitBlt(x+GetWidth()/2,  			//x dest
						y,		//y dest
	      				GetWidth(),		//width
						GetHeight()-i,	//depth
						&MemDC,
						GetWidth()/2,				//x source
						i,			//y source
						SRCCOPY);

			pDC->Rectangle( x+GetWidth()/2,
							y+GetHeight()-i,
							x+GetWidth(),
							y+GetHeight());
			break;
		}
		case EFFECT_HCROSSMOVE:
		{
			i += nDeta;
			if (i > GetWidth())
			{
				i = GetWidth();
				bDone = TRUE;
			}
			pDC->BitBlt(x+i,  			//x dest
						y,		//y dest
      					GetWidth()-i,		//width
						GetHeight()/2,	//depth
						&MemDC,
						0,				//x source
						0,			//y source
						SRCCOPY);

			pDC->Rectangle(x+i-nDeta, y,
						   x+i, y+GetHeight()/2);
	
			pDC->BitBlt(x,  			//x dest
						y+GetHeight()/2,	//depth
	      				GetWidth()-i,		//width
						GetHeight(),	//depth
						&MemDC,
						i,			//y source
						GetHeight()/2,	//depth
						SRCCOPY);

			pDC->Rectangle( x+GetWidth()-i,
							y+GetHeight()/2,
							x+GetWidth(),
							y+GetHeight());
			break;
		}
		case EFFECT_VSPLITMOVE:
		{
			i += nDeta;
			if (i > GetHeight()/2)
			{
				i = GetHeight()/2;
				bDone = TRUE;
			}
			pDC->BitBlt(x,  			//x dest
						y,		//y dest
			  			GetWidth(),		//width
						GetHeight()/2-i,	//depth
						&MemDC,
						0,				//x source
						i,			//y source
						SRCCOPY);

			pDC->BitBlt(x,  			//x dest
						y+GetHeight()/2+i,		//y dest
      					GetWidth(),		//width
						GetHeight()/2-i,	//depth
						&MemDC,
						0,				//x source
						GetHeight()/2,			//y source
						SRCCOPY);

			pDC->Rectangle( x,
							y+GetHeight()/2-i,
							x+GetWidth(),
							y+GetHeight()/2+i+1);
			break;
		}
		case EFFECT_HSPLITMOVE:
		{
			i += nDeta;
			if (i > GetWidth()/2)
			{
				i = GetWidth()/2;
				bDone = TRUE;
			}
			pDC->BitBlt(x,  			//x dest
						y,		//y dest
	      				GetWidth()/2-i,		//width
						GetHeight(),	//depth
						&MemDC,
						i,			//y source
						0,				//x source
						SRCCOPY);

			pDC->BitBlt(x+GetWidth()/2+i,  			//x dest
						y,		//y dest
      					GetWidth()/2-i,		//width
						GetHeight(),	//depth
						&MemDC,
						GetWidth()/2,				//x source
						0,			//y source
						SRCCOPY);

			pDC->Rectangle( x+GetWidth()/2-i,
							y,
							x+GetWidth()/2+i+1,
							y+GetHeight());
			break;
		}
		case EFFECT_VRASTER:
		{
			if (i > GetHeight())
			{
				i = GetHeight();
				bDone = TRUE;
			}
			LONG j = 0;
			BOOL bQuitLoop = FALSE;
			while (! bQuitLoop)
			{
				if (j > GetWidth())
				{
					j = GetWidth();
					bQuitLoop = TRUE;
				}
				pDC->BitBlt(x+j,  			//x dest
							y+i,		//y dest
      						nDeta,		//width
							GetHeight()-i,	//depth
							&MemDC,
							j,				//x source
							0,			//y source
							SRCCOPY);

				pDC->Rectangle(x+j, y+i-1,
							   x+j+nDeta, y+i);
				j += nDeta;
				if (j > GetWidth())
				{
					j = GetWidth();
					bQuitLoop = TRUE;
				}
	
				pDC->BitBlt(x+j,  			//x dest
							y,		//y dest
				  			nDeta,		//width
							GetHeight()-i,	//depth
							&MemDC,
							j,			//y source
							i,				//x source
							SRCCOPY);

				pDC->Rectangle( x+j,
								y+GetHeight()-i,
								x+j+nDeta,
								y+GetHeight());
				j += nDeta;
			}
			i++;
			break;
		}
		case EFFECT_HRASTER:
		{
			if (i > GetWidth())
			{
				i = GetWidth();
				bDone = TRUE;
			}
			LONG j = 0;
			BOOL bQuitLoop = FALSE;
			while (! bQuitLoop)
			{
				if (j > GetHeight())
				{
					j = GetHeight();
					bQuitLoop = TRUE;
				}
				pDC->BitBlt(x+i,  			//x dest
							y+j,		//y dest
      						GetWidth()-i,		//width
							nDeta,	//depth
							&MemDC,
							0,				//x source
							j,			//y source
							SRCCOPY);
				pDC->Rectangle(x+i-1, y+j,
							   x+i, y+j+nDeta);
				j += nDeta;
				if (j > GetHeight())
				{
					j = GetHeight();
					bQuitLoop = TRUE;
				}
				pDC->BitBlt(x,  			//x dest
							y+j,		//y dest
				  			GetWidth()-i,		//width
							nDeta,	//depth
							&MemDC,
							i,			//y source
							j,				//x source
							SRCCOPY);
				pDC->Rectangle( x+GetWidth()-i,
								y+j,
								x+GetWidth(),
								y+j+nDeta);
				j += nDeta;
			}
			i++;
			break;
		}
		case EFFECT_HBLIND:
		{
			if (i > nDeta)
			{
				i = nDeta;
				bDone = TRUE;
			}
			for (LONG j=i; j<GetHeight(); j+=nDeta)
				pDC->Rectangle( x,
								y+j,
								x+GetWidth(),
								y+j+1);
			i++;
			break;
		}
		case EFFECT_VBLIND:
			if (i > nDeta)
			{
				i = nDeta;
				bDone = TRUE;
			}
			for (LONG j=i; j<GetWidth(); j+=nDeta)
				pDC->Rectangle( x+j,
								y,
								x+j+1,
								y+GetHeight());
			i++;
			break;
		}	// end of switch
		Delay(dwDelayTime);
	}	// end of while

	MemDC.SelectObject(pOldBmp);
	pDC->SelectPalette(pOldPal, TRUE);

	return TRUE;
}

HDIB CDib::CopyRect(CRect rc)
{
	return CropDIB(m_hDib, rc);
}

BOOL CDib::CutRect(CRect rc)
{
	HDIB hNewDib = CutDIB(m_hDib, rc);
	if (! hNewDib)
		return FALSE;

	// set to m_hDib
	Destroy();
	m_hDib = hNewDib;

	// return
	return UpdateInternal();
}

BOOL CDib::MergeDib(HDIB hDib, CPoint ptTopLeft)
{
	POINT pt;
	pt.x = ptTopLeft.x;
	pt.y = ptTopLeft.y;
	HDIB hNewDib = MergeDIB(m_hDib, hDib, pt);
	if (! hNewDib)
		return FALSE;

	// set to m_hDib
	Destroy();
	m_hDib = hNewDib;

	// return
	return UpdateInternal();
}

BOOL CDib::	Crop(CRect rc)
{
	HDIB hNewDib = CropDIB(m_hDib, rc);
	if (! hNewDib)
		return FALSE;

	// set to m_hDib
	Destroy();
	m_hDib = hNewDib;

	// return
	return UpdateInternal();
}

BOOL CDib::Rotate(double fDegrees, COLORREF clrBack)
{
	HDIB hNewDib = RotateDIB(m_hDib, fDegrees, clrBack);
	if (! hNewDib)
		return FALSE;

	// set to m_hDib
	Destroy();
	m_hDib = hNewDib;

	// return
	return UpdateInternal();
}

BOOL CDib::Rotate90()
{
	HDIB hNewDib = RotateDIB(m_hDib);
	if (! hNewDib)
		return FALSE;

	// set to m_hDib
	Destroy();
	m_hDib = hNewDib;

	// return
	return UpdateInternal();
}

BOOL CDib::Rotate180()
{
	HDIB h = RotateDIB(m_hDib);
	if (! h)
		return FALSE;
	HDIB hNewDib = RotateDIB(h);
	DestroyDIB(h);
	if (! hNewDib)
		return FALSE;

	// set to m_hDib
	Destroy();
	m_hDib = hNewDib;

	// return
	return UpdateInternal();
}

BOOL CDib::Rotate270()
{
	HDIB h1 = RotateDIB(m_hDib);
	if (! h1)
		return FALSE;
	HDIB h2 = RotateDIB(h1);
	DestroyDIB(h1);
	if (! h2)
		return FALSE;
	HDIB hNewDib = RotateDIB(h2);
	DestroyDIB(h2);
	if (! hNewDib)
		return FALSE;

	// set to m_hDib
	Destroy();
	m_hDib = hNewDib;

	// return
	return UpdateInternal();
}

BOOL CDib::FlipHorz()
{
	HDIB hNewDib = FlipHorzDIB(m_hDib);
	if (! hNewDib)
		return FALSE;

	// set to m_hDib
	Destroy();
	m_hDib = hNewDib;

	// return
	return UpdateInternal();
}

BOOL CDib::FlipVert()
{
	HDIB hNewDib = FlipVertDIB(m_hDib);
	if (! hNewDib)
		return FALSE;

	// set to m_hDib
	Destroy();
	m_hDib = hNewDib;

	// return
	return UpdateInternal();
}

BOOL CDib::	ChangeImageSize(int nWidth, int nHeight)
{
	HDIB hNewDib = ChangeDIBSize(m_hDib, nWidth, nHeight);
	if (! hNewDib)
		return FALSE;

	// set to m_hDib
	Destroy();
	m_hDib = hNewDib;

	// return
	return UpdateInternal();
}

BOOL CDib::Zoom(double fRatioX, double fRatioY)
{
	int nWidth = (int)(fRatioX * (double)GetWidth());
	int nHeight = (int)(fRatioY * (double)GetHeight());

	HDIB hNewDib = ChangeDIBSize(m_hDib, nWidth, nHeight);
	if (! hNewDib)
		return FALSE;

	// set to m_hDib
	Destroy();
	m_hDib = hNewDib;

	// return
	return UpdateInternal();
}

BOOL CDib::	ChangeCanvasSize(int nWidth, int nHeight, int nPosition)
{
	HDIB hNewDib = ChangeDIBCanvasSize(m_hDib, nWidth, nHeight, nPosition);
	if (! hNewDib)
		return FALSE;

	// set to m_hDib
	Destroy();
	m_hDib = hNewDib;

	// return
	return UpdateInternal();
}

CDib * CDib::Clone()
{
	if (m_hDib == NULL)
		return NULL;

	HDIB hDIB = CopyHandle(m_hDib);
	if (hDIB == NULL)
		return NULL;

	CDib *pDib = new CDib;
	pDib->m_hDib = hDIB;
	pDib->BuildPalette();
	pDib->BuildBitmap();

	return pDib;
}