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|
/*
/--------------------------------------------------------------------
|
| $Id: plfiltercrop.cpp,v 1.13 2004/10/05 13:54:28 artcom Exp $
|
| Copyright (c) 1996-2002 Ulrich von Zadow
|
\--------------------------------------------------------------------
*/
#include "plfiltercrop.h"
#include "plbitmap.h"
#include "plrect.h"
PLFilterCrop::PLFilterCrop(int XMin, int YMin, int XMax, int YMax)
: PLFilter(),
m_XMin(XMin),
m_XMax(XMax),
m_YMin(YMin),
m_YMax(YMax)
{
}
PLFilterCrop::PLFilterCrop(const PLRect & rc)
{
m_XMin = rc.tl.x;
m_XMax = rc.br.x;
m_YMin = rc.tl.y;
m_YMax = rc.br.y;
}
PLFilterCrop::~PLFilterCrop()
{
}
void PLFilterCrop::Apply(PLBmpBase * pBmpSource, PLBmp * pBmpDest) const
{
PLASSERT (m_XMin >= 0);
PLASSERT (m_XMax <= pBmpSource->GetWidth());
PLASSERT (m_YMin >= 0);
PLASSERT (m_YMax <= pBmpSource->GetHeight());
PLASSERT (m_XMin < m_XMax);
PLASSERT (m_YMin < m_YMax);
PLASSERT (pBmpSource->GetBitsPerPixel() >= 8);
pBmpDest->Create (m_XMax-m_XMin, m_YMax-m_YMin,
pBmpSource->GetPixelFormat(),
NULL, 0, pBmpSource->GetResolution());
PLBYTE ** pSrcLineArray = pBmpSource->GetLineArray();
PLBYTE ** pDstLineArray = pBmpDest->GetLineArray();
int y;
for (y = m_YMin; y < m_YMax; y++)
{
PLBYTE * pSrcLine = pSrcLineArray[y];
PLBYTE * pDstLine = pDstLineArray[y-m_YMin];
int BytesPerPixel = pBmpSource->GetBitsPerPixel()/8;
memcpy (pDstLine, pSrcLine + m_XMin*BytesPerPixel, (m_XMax-m_XMin)*BytesPerPixel);
}
if (pBmpSource->GetBitsPerPixel() == 8)
{
pBmpDest->SetPalette(pBmpSource->GetPalette());
}
}
/*
/--------------------------------------------------------------------
|
| $Log: plfiltercrop.cpp,v $
| Revision 1.13 2004/10/05 13:54:28 artcom
| *** empty log message ***
|
| Revision 1.12 2004/10/02 22:23:12 uzadow
| - configure and Makefile cleanups\n- Pixelformat enhancements for several filters\n- Added PLBmpBase:Dump\n- Added PLBmpBase::GetPixelNn()-methods\n- Changed default unix byte order to BGR
|
| Revision 1.11 2004/09/11 12:41:36 uzadow
| removed plstdpch.h
|
| Revision 1.10 2004/09/09 16:52:45 artcom
| refactored PixelFormat
|
| Revision 1.9 2004/06/15 10:26:13 uzadow
| Initial nonfunctioning version of plbmpbase.
|
| Revision 1.8 2003/11/05 15:17:26 artcom
| Added ability to specify initial data in PLBitmap::Create()
|
| Revision 1.7 2002/08/04 20:08:01 uzadow
| Added PLBmpInfo class, ability to extract metainformation from images without loading the whole image and proper greyscale support.
|
| Revision 1.6 2002/03/31 13:36:42 uzadow
| Updated copyright.
|
| Revision 1.5 2001/10/16 17:12:26 uzadow
| Added support for resolution information (Luca Piergentili)
|
| Revision 1.4 2001/10/06 22:37:08 uzadow
| Linux compatibility.
|
| Revision 1.3 2001/09/30 19:55:37 uzadow
| Fixed bug for 8 bpp in PLFilterCrop.
|
| Revision 1.2 2001/09/28 19:50:56 uzadow
| Added some 24 bpp stuff & other minor features.
|
| Revision 1.1 2001/09/16 19:03:23 uzadow
| Added global name prefix PL, changed most filenames.
|
| Revision 1.7 2001/02/04 14:31:52 uzadow
| Member initialization list cleanup (Erik Hoffmann).
|
| Revision 1.6 2001/01/15 15:05:31 uzadow
| Added PLBmp::ApplyFilter() and PLBmp::CreateFilteredCopy()
|
| Revision 1.5 2000/09/26 10:47:26 Administrator
| no message
|
| Revision 1.4 2000/01/16 20:43:15 anonymous
| Removed MFC dependencies
|
| Revision 1.3 1999/12/08 16:31:40 Ulrich von Zadow
| Unix compatibility
|
| Revision 1.2 1999/10/21 18:48:03 Ulrich von Zadow
| no message
|
| Revision 1.1 1999/10/21 16:05:17 Ulrich von Zadow
| Moved filters to separate directory. Added Crop, Grayscale and
| GetAlpha filters.
|
| Revision 1.1 1999/10/19 21:29:44 Ulrich von Zadow
| Added filters.
|
|
\--------------------------------------------------------------------
*/
|
