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📄 wfun.cpp

📁 改进的JPEG-LS算法
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123 
} 

BOOL CalculateFONTSize(LPLOGFONT plf,BOOL PrintOrScreen) 
{
	CDC PDC,*pDc;
	TEXTMETRIC tm;
	CFont Fon,*old;
	pDc=&PDC;
	BOOL Ret=FALSE;plf->lfWidth=0;
	if(Fon.CreateFontIndirect(plf)==TRUE)
	{
		if(PrintOrScreen==FALSE)AfxGetApp()->CreatePrinterDC(PDC);//创建与打印设相关的DC
		else
		{
			pDc=AfxGetApp()->GetMainWnd()->GetDC();
		}
		if(pDc->m_hDC!=NULL)
		{
			old=pDc->SelectObject(&Fon);
			pDc->GetTextMetrics(&tm);
			pDc->SelectObject(old);
			plf->lfHeight=tm.tmHeight;
			plf->lfWidth=tm.tmAveCharWidth;
			Ret=TRUE;
		}
		Fon.DeleteObject();
		if(PrintOrScreen==FALSE)PDC.DeleteDC();
		else AfxGetApp()->GetMainWnd()->ReleaseDC(pDc);
	}
	return Ret;
}
static char BASED_CODE szFilter_AllFile[] = "全部文件 (*.*) \0*.*\0\0 ";
int FindFileNameOpreation(BOOL LoadOrSave,//为打开或另存
						   LPSTR asc,		//带缓冲区的指针
						   LPSTR szFilter,	//文件过滤器,NULL时为全部文件
						   int Allow_OutFileNumber,//大于1时,允许打开或另存多文件
						   CString *FileName_List,//多文件名时个文件名指针列表指针,NULL时只允许单文件
						   int MaxBufferLength)//asc 最大长度
{
	int i;
	POSITION pos;
	if((i=strlen(asc))>0)
	{
		if(asc[i-1]=='\\'||asc[i-1]==':')asc[0]='\0';
	}
	if(szFilter==NULL)szFilter=szFilter_AllFile;
	if(FileName_List==NULL)Allow_OutFileNumber=1;
	if(Allow_OutFileNumber>8192||Allow_OutFileNumber<1)Allow_OutFileNumber=1;
	CFileDialog opf(LoadOrSave,NULL,asc);
	if(Allow_OutFileNumber==1)opf.m_ofn.Flags |=OFN_HIDEREADONLY;
	else 
	{
		opf.m_ofn.Flags |=(OFN_HIDEREADONLY | OFN_FILEMUSTEXIST| OFN_ALLOWMULTISELECT);
	}
	opf.m_ofn.nMaxFile=MaxBufferLength;
	opf.m_ofn.lpstrFile = asc;
	opf.m_ofn.lpstrFilter = szFilter;
	if(opf.DoModal()==IDOK)
	{
		if(Allow_OutFileNumber==1)return 1;
		else
		{
			pos=opf.GetStartPosition();
			for(i=0;i<Allow_OutFileNumber&&pos!=NULL;i++)
			{
				FileName_List[i]=opf.GetNextPathName(pos);
			}
			return i;
		}
	}
	else return(0);
}
BOOL TestTheFileExist(LPCTSTR filename,
					  unsigned int minByteN,//小于此最小长度,则识为不存在
					  BOOL OnOff)//不存在时可报警
{
	CFile f;
	unsigned int l;
	CString err;
	if(f.Open(filename,CFile::modeRead)==TRUE)
	{
		l=f.SeekToEnd();
		f.Close();
		if(l>minByteN)return(TRUE);
		if(OnOff==TRUE)
		{
			MessageBeep(0xffffffff);
			err.Format(_T("此文件 <%s> 长度为 %u 小于 %u"),filename,l,minByteN);
			(AfxGetApp()->m_pMainWnd)->MessageBox((LPCTSTR)err,NULL,MB_ICONWARNING|MB_OK);
		}
		return(FALSE);
	}
	if(OnOff==TRUE)
	{
		MessageBeep(0xffffffff);
		err.Format(_T("此文件 <%s> 不存在"),filename);
		(AfxGetApp()->m_pMainWnd)->MessageBox((LPCTSTR)err,NULL,MB_ICONWARNING|MB_OK);
	}
	return(FALSE);
}
void DialogSetColor(COLORREF &Color)
{
	CColorDialog *Colorcp=new CColorDialog(Color);
	if(Colorcp->DoModal()==IDOK)
	{
		Color=Colorcp->GetColor();
	}
	delete Colorcp;
}
BOOL RunDosProgram(CWnd *lpW,LPCTSTR lpCmdLine,UINT uCmdShow)
{
	UINT ReCode;
	ReCode=WinExec(lpCmdLine,uCmdShow);
	if(ReCode<32)
	{
		if(system(lpCmdLine)==0)return TRUE;//system是不推荐的方法.
		MessageBeep(0xffffffff);
		if(ReCode==0)
		{
			lpW->MessageBox(_T("The system is out of memory or resources!"));
		}
		else if(ReCode==ERROR_BAD_FORMAT)
		{
			lpW->MessageBox(_T("The .EXE file is invalid \r\n(non-Win32 .EXE or error in .EXE image)!"));
		}
		else if(ReCode==ERROR_FILE_NOT_FOUND)
		{
			lpW->MessageBox(_T("The specified file was not found!"));
		}
		else if(ReCode==ERROR_PATH_NOT_FOUND)
		{
			lpW->MessageBox(_T("The specified path was not found!"));
		}
		return FALSE;
	}
	return TRUE;
}
BOOL RunWinProgram(LPCTSTR lpAplication,LPTSTR lpCmdLine)
{
	PROCESS_INFORMATION proInfo;
	STARTUPINFO StartInfo;
	return CreateProcess(lpAplication,// pointer to name of executable module
						lpCmdLine,// pointer to command line string
						NULL,  // process security attributes
						NULL,   // thread security attributes
						FALSE,  // handle inheritance flag
						0, // creation flags
						NULL,  // pointer to new environment block
						NULL,   // pointer to current directory name
						&StartInfo,  // pointer to STARTUPINFO
						&proInfo);
}
void SequenceArrange(int *lpSequence,//序列的排列,适于短序
					 int Length,//序列长度
					 int Mode,//排序方式
					 int *lpIndexOriginal,//当前序索引原序
					 int *lpIndexCurrent)//原序索引当前序
{
	if(Length<2)return;
	int i,j,n;
	if(lpIndexOriginal!=NULL||lpIndexCurrent!=NULL)
	{
		int *ListCp=new int[Length];//内容是当前序索引原序
		int *ListArrge=new int[Length];//原序索引当前序
		for(i=0;i<Length;i++)ListCp[i]=ListArrge[i]=i;
		//排队
		for(i=0;i<Length-1;i++)
		{
			for(j=i+1;j<Length;j++)
			{
				if((lpSequence[j]<lpSequence[i]&&Mode==SEQUENCE_ARRANGE_ASCENDING)||//从小到大
					(lpSequence[j]>lpSequence[i]&&Mode==SEQUENCE_ARRANGE_DESCENDING))//从大到小
				{
					n=ListCp[i];//和序列同时交换才能保证其对原序的索引
					ListCp[i]=ListCp[j];
					ListCp[j]=n;
					ListArrge[ListCp[i]]=i;
					ListArrge[ListCp[j]]=j;
					n=lpSequence[i];
					lpSequence[i]=lpSequence[j];
					lpSequence[j]=n;
				}
			}
		}
		if(lpIndexOriginal!=NULL)MoveMemory(lpIndexOriginal,ListCp,Length*sizeof(int));
		if(lpIndexCurrent!=NULL)MoveMemory(lpIndexCurrent,ListArrge,Length*sizeof(int));
		delete ListCp;
		delete ListArrge;
	}
	else 
	{
		for(i=0;i<Length-1;i++)
		{
			for(j=i+1;j<Length;j++)
			{
				if((lpSequence[j]<lpSequence[i]&&Mode==SEQUENCE_ARRANGE_ASCENDING)||//从小到大
					(lpSequence[j]>lpSequence[i]&&Mode==SEQUENCE_ARRANGE_DESCENDING))//从大到小
				{
					n=lpSequence[i];
					lpSequence[i]=lpSequence[j];
					lpSequence[j]=n;
				}
			}
		}
	}
}
CString DistributionOut(int *lpD,int MaxL,int BgTab,int Mode,LPCTSTR lpAsc)
{
	CString str,s;
	int i,j,bg,ed,Max,p,nHuff,Huff[8];
	double a,a1,a2,All,Me,Var,Em,p1,p2;
	for(i=0,bg=-1,ed=0,All=0,Max=0;i<MaxL;i++)//去掉两回事头的零
	{
		if(lpD[i]!=0)
		{
			if(bg==-1)bg=i;
			ed=i;
			All+=lpD[i];//求总的统计量
			if(lpD[i]>Max)Max=lpD[i];//求最大值
		}
	}
	if(bg<0||All<=0)return s;
	if(lpAsc!=NULL)
	{
		str=lpAsc;
	}
	if(Mode&_OUT_HUFFMAN_CODING_SEAT)
	{
		for(i=bg,nHuff=0,p=0,p1=0.5,p2=0.5;i<=ed&&nHuff<8;i++)
		{
			p+=lpD[i];
			if((p/All)>=p1)
			{
				Huff[nHuff++]=i;
				p2/=2;
				p1+=p2;
			}
		}
		if(nHuff>0)
		{
			for(j=0;j<nHuff;j++)
			{
				s.Format(_T("%4d	"),Huff[j]);str+=s;
			}
			s.Format(_T("\r\n"));str+=s;
		}
	}
	if(Mode&_OUT_ME_AND_VAR)
	{
		for(i=bg,Me=0;i<=ed;i++)
		{//求均值
			Me+=((i+BgTab)*lpD[i]/All);
		}
		s.Format(_T("\r\n均值：%12.6f"),Me);str+=s;
		for(i=bg,Var=0;i<=ed;i++)
		{//求方差
			Var+=((i+BgTab-Me)*(i+BgTab-Me)*lpD[i]/All);
		}
		Var=sqrt(Var);
		s.Format(_T("     方差：%12.6f"),Var);str+=s;
		for(i=bg,Em=0;i<=ed;i++)
		{//求方差
			if((i+BgTab)>0)Em+=((i+BgTab)*lpD[i]/All);
			else Em+=(-(i+BgTab)*lpD[i]/All);
		}
		s.Format(_T("     平均偏移：%12.6f"),Em);str+=s;
	}
	if((Mode&_NOT_OUT_PROPABILITY)==0)
	{//输出概率
		for(i=bg;i<=ed;i++)
		{//输出统计分布
			s.Format(_T("\r\n(%5d)|"),i+BgTab);str+=s;
			j=lpD[i]*80/Max;
			for(;j>0;j--)str+=_T("-");
			a=lpD[i]*100;a/=All;
			if(Mode&_OUT_HUFFMAN_CODING_SEAT&&nHuff>0)
			{
				s.Format(_T("|"));str+=s;
				for(j=0;j<nHuff;j++)
				{
					if(i==Huff[j])
					{
						for(;j>=0;j--)str+=_T("+");
						break;
					}
				}
				s.Format(_T("%4d(%4f%%)"),lpD[i],a);str+=s;
			}
			else
			{
				s.Format(_T("|%d(%4f%%)"),lpD[i],a);str+=s;
			}
		}
		str+=_T("\r\n");
	}
	if(Mode&_OUT_DISTRIBUTION)
	{//输出分布
		for(i=bg,p=0;i<=ed;i++)
		{//输出统计分布
			s.Format(_T("\r\n(%5d)|"),i+BgTab);str+=s;
			p+=lpD[i];
			j=(int)(p*80/All);
			for(;j>0;j--)str+=_T("-");
			a=p*100;a/=All;
			a1=lpD[i]*100;a1/=All;
			if(i>bg){a2=(lpD[i-1]-lpD[i])*100;a2/=lpD[i-1];}
			else a2=1;
			s.Format(_T("|%5f%%(%5f%%,%5f%%)"),a,a1,a2);str+=s;
		}
		str+=_T("\r\n");
	}
	if(Mode&_OUT_PROPABILITY_LIST)
	{//输出概率列表
		s.Format(_T("\r\n(%5d)\r\n"),bg+BgTab);str+=s;
		for(i=bg;i<=ed;i++)
		{//输出统计分布列表
			s.Format(_T("%d	"),lpD[i]);str+=s;
		}
		str+=_T("\r\n");
	}
	return str;
}
CString DistributionOut(double *lpD,int MaxL,int BgTab,int Mode,LPCTSTR lpAsc)
{
	CString str,s;
	int i,j,bg,ed,nHuff,Huff[8];
	double a,a1,a2,All,Me,Var,Em,Max,p,p1,p2;
	for(i=0,bg=-1,ed=0,All=0,Max=0;i<MaxL;i++)//去掉两回事头的零
	{
		if(lpD[i]!=0)
		{
			if(bg==-1)bg=i;
			ed=i;
			All+=lpD[i];//求总的统计量
			if(lpD[i]>Max)Max=lpD[i];//求最大值
		}
	}
	if(lpAsc!=NULL)
	{
		str=lpAsc;
	}
	if(Mode&_OUT_HUFFMAN_CODING_SEAT)
	{
		for(i=bg,nHuff=0,p=0,p1=0.5,p2=0.5;i<=ed&&nHuff<8;i++)
		{
			p+=lpD[i];
			if((p/All)>=p1)
			{
				Huff[nHuff++]=i;
				p2/=2;
				p1+=p2;
			}
		}
		if(nHuff>0)
		{
			for(j=0;j<nHuff;j++)
			{
				if(j<nHuff-1){s.Format(_T("%4d %d	"),Huff[j],Huff[j+1]-Huff[j]);str+=s;}
				else{s.Format(_T("%4d	"),Huff[j]);str+=s;}
			}
			s.Format(_T("\r\n"));str+=s;
		}
	}
	if(Mode&_OUT_ME_AND_VAR)
	{
		for(i=bg,Me=0;i<=ed;i++)
		{//求均值
			Me+=((i+BgTab)*lpD[i]/All);
		}
		s.Format(_T("\r\n均值：%12.6f"),Me);str+=s;
		for(i=bg,Var=0;i<=ed;i++)
		{//求方差
			Var+=((i+BgTab-Me)*(i+BgTab-Me)*lpD[i]/All);
		}
		Var=sqrt(Var);
		s.Format(_T("     方差：%12.6f"),Var);str+=s;
		for(i=bg,Em=0;i<=ed;i++)
		{//求方差
			if((i+BgTab)>0)Em+=((i+BgTab)*lpD[i]/All);
			else Em+=(-(i+BgTab)*lpD[i]/All);
		}
		s.Format(_T("     平均偏移：%12.6f"),Em);str+=s;
	}
	if((Mode&_NOT_OUT_PROPABILITY)==0)
	{//输出概率
		for(i=bg;i<=ed;i++)
		{//输出统计分布
			s.Format(_T("\r\n(%5d)|"),i+BgTab);str+=s;
			j=(int)(lpD[i]*80/Max);
			for(;j>0;j--)str+=_T("-");
			a=lpD[i]*100;a/=All;
			if(Mode&_OUT_HUFFMAN_CODING_SEAT&&nHuff>0)
			{
				s.Format(_T("|"));str+=s;
				for(j=0;j<nHuff;j++)
				{
					if(i==Huff[j])
					{
						for(;j>=0;j--)str+=_T("+");
						break;
					}
				}
				s.Format(_T("%4f(%4f%%)"),lpD[i],a);str+=s;
			}
			else
			{
				s.Format(_T("|%4f(%4f%%)"),lpD[i],a);str+=s;
			}
		}
		str+=_T("\r\n");
	}
	if(Mode&_OUT_DISTRIBUTION)
	{
		for(i=bg,p=0;i<=ed;i++)
		{//输出统计分布
			s.Format(_T("\r\n(%5d)|"),i+BgTab);str+=s;
			p+=lpD[i];
			j=(int)(p*80/All);
			for(;j>0;j--)str+=_T("-");
			a=p*100;a/=All;
			a1=lpD[i]*100;a1/=All;
			if(i>bg){a2=(lpD[i-1]-lpD[i])*100;a2/=lpD[i-1];}
			else a2=1;
			s.Format(_T("|%5f%%(%5f%%,%5f%%)"),a,a1,a2);str+=s;
		}
		str+=_T("\r\n");
	}
	if(Mode&_OUT_PROPABILITY_LIST)
	{//输出概率列表
		s.Format(_T("\r\n(%5d)\r\n"),bg+BgTab);str+=s;
		for(i=bg;i<=ed;i++)
		{//输出统计分布列表
			s.Format(_T("%6f	"),lpD[i]);str+=s;
		}
		str+=_T("\r\n");
	}
	return str;
}
123

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