/***************************************************************************
 * E-Com Technology Ltd.
 *
 * ECOMPACS DICOM Network Transport Libraries * Version 0.1 Beta
 ***************************************************************************/

#ifndef __DICOMImageJPEG__
#define __DICOMImageJPEG__


//-----------------------------------------------------------------------------
// class DICOMImageJPEG
//-----------------------------------------------------------------------------
class DICOMImageJPEG
{
public:
	DICOMImageJPEG ()
	{
		Init ();
	}

	void Init (void)
	{
		m_JPEGQuality  = 75;
		m_WindowCenter = -1;
		m_WindowWidth  = -1;
		m_NewRows = -1;
		m_NewCols = -1;
		m_OrgRows = -1;
		m_OrgCols = -1;
	}

	~DICOMImageJPEG ()
	{
		Release ();
	}

	void Release (void)
	{
		m_Buffer.Reset ();
	}

	BOOL WriteFile (const char * FileName) const;
	BOOL IsValid (void) const { return (m_Buffer.GetSize () != 0); }
	BOOL ConvertImage (DICOMImage * Image);

//	读文件,并且设置原来的窗宽/窗位
	BOOL ReadFile (const char * FileName);

//  判断是否应当重新创建JPEG文件,FileName是已知的文件名
//	返回true时,表明应当重新创建JPEG,返回false时,表明无需重新创建JPEG
	bool ShouldICreateJPEG (
		const char * FileName,
		int JPEGQuality, 
		int WindowCenter, int WindowWidth, 
		int NewRows, int NewCols);

	int  GetJPEGLength () const;

public:
	BOOL ScaleImage (DICOMImage * Image);

public:
	INT16	m_JPEGQuality;
	int		m_WindowCenter;
	int		m_WindowWidth;
	INT16	m_NewRows;
	INT16	m_NewCols;
	INT16	m_OrgRows;
	INT16	m_OrgCols;

protected:
	IStreamBuffer m_Buffer;
};


#endif