// FileBuffer.cpp: implementation of the CFileBuffer class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "InspectionBuffer.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

void CFileBuffer::FillBuffer(CFile &file, int x, int y, int oWidth, int oHeight)
{
	int iData= sizeof(BITMAPFILEHEADER)+ sizeof(BITMAPINFOHEADER)+ 1024;
	for(int i= 0; i< m_Height; i++)
	{
//		fseek(pFile, iData+ x+ (y+ i)*oWidth, SEEK_SET);
//		fread(m_pData+ i*GetDataWidth(), width, 1, pFile);
		file.Seek(iData+ x+ (y+ i)*oWidth, SEEK_SET);
		file.Read(m_pData+ i*GetDataWidth(), m_Width);
	}
}

void CFileBuffer::FillBufferReverse(CFile &file, int x, int y, int oWidth, int oHeight)
{
	int iData= sizeof(BITMAPFILEHEADER)+ sizeof(BITMAPINFOHEADER)+ 1024;

	int nNewY = oHeight - y - m_Height;
	for(int i= m_Height-1; i>=0 ; i--)
	{
		file.Seek(iData+ x+ (nNewY+ i)*oWidth, SEEK_SET);
		file.Read(m_pData+ (m_Height-1-i)*GetDataWidth(), m_Width);
	}
}

void CFileBuffer::FillBufferFromTwoFile(CFile &file1, CFile &file2, int x, int y, int FirstHeight, int SecondHeight, int oWidth, int oHeight)
{
	int iData= sizeof(BITMAPFILEHEADER)+ sizeof(BITMAPINFOHEADER)+ 1024;
	for(int i= 0; i< FirstHeight; i++)
	{
		file1.Seek(iData+ x+ (y+ i)*oWidth, SEEK_SET);
		file1.Read(m_pData+ i*GetDataWidth(), m_Width);
	}

	if(SecondHeight>0)
	{
		for(int i= 0; i< SecondHeight; i++)
		{
			file2.Seek(iData+ x+ i*oWidth, SEEK_SET);
			file2.Read(m_pData+ (FirstHeight+i)*GetDataWidth(), m_Width);
		}
	}
}


void CFileBuffer::SaveBufferToTwoFile(CFile &file1, CFile &file2, int x, int y, int FirstHeight, int SecondHeight, int oWidth, int oHeight)
{
	int iData= sizeof(BITMAPFILEHEADER)+ sizeof(BITMAPINFOHEADER)+ 1024;
	for(int i= 0; i< FirstHeight; i++)
	{
		file1.Seek(iData+ x+ (y+ i)*oWidth, SEEK_SET);
		file1.Write(m_pData+ i*GetDataWidth(), m_Width);
	}

	if(SecondHeight>0)
	{
		for(int i= 0; i< SecondHeight; i++)
		{
			file2.Seek(iData+ x+ i*oWidth, SEEK_SET);
			file2.Write(m_pData+ (FirstHeight+i)*GetDataWidth(), m_Width);
		}
	}
}

// miniont, 2008-09-04, begin
BITMAPINFOHEADER  CFileBuffer::GetBitmapInfoHeader(CFile &file)
{
	BITMAPINFOHEADER infoHeader;

	file.Seek(sizeof(BITMAPFILEHEADER), SEEK_SET);
	file.Read(&infoHeader, sizeof(BITMAPINFOHEADER));

	return infoHeader;
}

const int CFileBuffer::GetContentWidth(CFile &file)
{
	BITMAPINFOHEADER infoHeader;
	
	file.Seek(sizeof(BITMAPFILEHEADER), SEEK_SET);
	file.Read(&infoHeader, sizeof(BITMAPINFOHEADER));
	
	return infoHeader.biWidth;
}


const int CFileBuffer::GetContentHeight(CFile &file)
{
	BITMAPINFOHEADER infoHeader;

	file.Seek(sizeof(BITMAPFILEHEADER), SEEK_SET);
	file.Read(&infoHeader, sizeof(BITMAPINFOHEADER));

	return infoHeader.biHeight;
}
// miniont, 2008-09-04, end