sortdlg.cpp

陈建春<用VC++开发GIS系统>源码.适合于GIS学习者,以及学习图形图象编程的朋友.

// SortDlg.cpp : implementation file
//

#include "stdafx.h"
#include "draw.h"
#include "data1ret.h"
#include "SortDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CSortDlg dialog

CSortDlg::CSortDlg(CDataBaseSet* pSet,CWnd* pParent /*=NULL*/)
	: CDialog(CSortDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSortDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	m_pSet=pSet;
	if(!m_pSet->IsOpen())
		m_pSet->Open();
	m_strSort=m_pSet->m_strSort;
	m_NumbField=m_pSet->GetODBCFieldCount();
	CODBCFieldInfo fieldinfo1;
	CODBCFieldInfo& fieldinfo=fieldinfo1;
	for(int i=0;i<m_NumbField;i++)
	{
		m_pSet->GetODBCFieldInfo(i,fieldinfo);
		pFieldInfo[i]=fieldinfo1;
	}
	m_NumbSort=0;
}


void CSortDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSortDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CSortDlg, CDialog)
	//{{AFX_MSG_MAP(CSortDlg)
	ON_BN_CLICKED(IDC_SORT_ADD, OnSortAdd)
	ON_BN_CLICKED(IDC_SORT_DELETE, OnSortDelete)
	ON_BN_CLICKED(IDC_SORT_INSERT, OnSortInsert)
	ON_BN_CLICKED(IDC_SORT_MODIFY, OnSortModify)
	ON_LBN_SELCHANGE(IDC_LIST1, OnSelchangeList1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSortDlg message handlers

BOOL CSortDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	plist1=(CListBox *)GetDlgItem(IDC_LIST1);
	pcom1=(CComboBox *)GetDlgItem(IDC_COMBO1);	
	plist1->ResetContent();
	pcom1->ResetContent();
	BreakSortStr(m_strSort);
	CString m_str;
	for(int i=0;i<m_NumbSort;i++)
	{	
		if(b_Sort[i])
			m_str="↑    ";
		else
			m_str="↓    ";
		m_str+=strSort[i];
		plist1->AddString(m_str);
	}
	MakeStr();
	for(i=0;i<m_NumbField;i++)
		pcom1->AddString(pFieldInfo[i].m_strName);
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}


int CSortDlg::BreakSortStr(CString m_str)
{
	int nChar;
	m_str.TrimLeft();
	m_str.TrimRight();
	nChar=m_str.GetLength();
	CString m_str1=m_str;
	CString m_str2;
	int nStart;
	nStart=0;
	m_NumbSort=0;
	int n;
	do
	{
		n=m_str1.Find(",",nStart);
		if(n>=0)
		{
			if(n>nStart)
			{
				m_str2=m_str.Mid(nStart,n-nStart);
				m_str2.TrimLeft();
				m_str2.TrimRight();
				if(m_str2.GetLength()>0)
					strSort[m_NumbSort++]=m_str2;
				m_str2.Empty();
			}
			nStart=n+1;
		}
		else
		{
			if(nStart<nChar)
			{
				m_str2=m_str.Mid(nStart,nChar);
				m_str2.TrimLeft();
				m_str2.TrimRight();
				if(m_str2.GetLength()>0)
					strSort[m_NumbSort++]=m_str2;
				m_str2.Empty();
			}		
		}
	} while(n>=0);

	for(int i=0;i<m_NumbSort;i++)
	{
		m_str2=strSort[i];
		int nn=m_str2.GetLength();
		n=m_str2.Find(" ");
		if(n>0)
		{
			strSort[i]=m_str2.Mid(0,n);
			m_str1=m_str2.Right(nn-n-1);
			m_str1.TrimLeft();
			m_str1.MakeUpper();
			if(!m_str1.Compare("ASC"))
				b_Sort[i]=1;
			else if(!m_str1.Compare("DESC"))
				b_Sort[i]=0;
			else
				b_Sort[i]=1;
		}
		else
			b_Sort[i]=1;
	}
	return m_NumbSort;
}

void CSortDlg::OnSortAdd() 
{
	if(m_NumbSort>=10)
	{
		AfxMessageBox("最多只能有10个排序字段");
		return;
	}
	int ncom1=pcom1->GetCurSel();
	if(ncom1<0)
	{
		AfxMessageBox("没有选择排序字段");
		return;
	}
	strSort[m_NumbSort]=pFieldInfo[ncom1].m_strName;
	CButton *pcheck1=(CButton *)GetDlgItem(IDC_CHECK1);
	b_Sort[m_NumbSort]=1-pcheck1->GetCheck();
	CString m_str;
	if(b_Sort[m_NumbSort])
		m_str="↑    ";
	else
		m_str="↓    ";
	m_str+=strSort[m_NumbSort];
	plist1->AddString(m_str);
	plist1->SetCurSel(m_NumbSort);
	m_NumbSort++;
	MakeStr();
}

void CSortDlg::OnSortDelete() 
{
	// TODO: Add your control notification handler code here
	int nlist1=plist1->GetCurSel();
	if(nlist1<0)
		return;
	for(int i=nlist1;i<m_NumbSort-1;i++)
	{
		strSort[i]=strSort[i+1];
		b_Sort[i]=b_Sort[i+1];
	}
	plist1->DeleteString(nlist1);
	if(nlist1==m_NumbSort-1)
		plist1->SetCurSel(nlist1-1);
	else
		plist1->SetCurSel(nlist1);
	m_NumbSort--;
	MakeStr();
	OnSelchangeList1();
}


void CSortDlg::OnSortInsert() 
{
	// TODO: Add your control notification handler code here
	if(m_NumbSort>=10)
	{
		AfxMessageBox("最多只能有10个排序字段");
		return;
	}
	int nlist1=plist1->GetCurSel();
	if(nlist1<0)
		return;
	int ncom1=pcom1->GetCurSel();
	for(int i=m_NumbSort;i>nlist1;i--)
	{
		strSort[i]=strSort[i-1];
		b_Sort[i]=b_Sort[i-1];
	}
	
	strSort[nlist1]=pFieldInfo[ncom1].m_strName;
	CButton *pcheck1=(CButton *)GetDlgItem(IDC_CHECK1);
	b_Sort[nlist1]=1-pcheck1->GetCheck();
	CString m_str;
	if(b_Sort[nlist1])
		m_str="↑    ";
	else
		m_str="↓    ";
	m_str+=strSort[nlist1];
	plist1->InsertString(nlist1,m_str);
	plist1->SetCurSel(nlist1);
	m_NumbSort++;
	MakeStr();
}

void CSortDlg::OnSortModify() 
{
	// TODO: Add your control notification handler code here
	int nlist1=plist1->GetCurSel();
	if(nlist1<0)
		return;
	int ncom1=pcom1->GetCurSel();
	strSort[nlist1]=pFieldInfo[ncom1].m_strName;
	CButton *pcheck1=(CButton *)GetDlgItem(IDC_CHECK1);
	b_Sort[nlist1]=1-pcheck1->GetCheck();
	CString m_str;
	if(b_Sort[nlist1])
		m_str="↑    ";
	else
		m_str="↓    ";
	m_str+=strSort[nlist1];
	plist1->DeleteString(nlist1);
	if(nlist1==m_NumbSort-1)
		plist1->AddString(m_str);
	else
		plist1->InsertString(nlist1,m_str);
	plist1->SetCurSel(nlist1);
	MakeStr();
}

void CSortDlg::MakeStr()
{
	m_strSort.Empty();
	for(int i=0;i<m_NumbSort;i++)
	{
		if(i>0)
			m_strSort+=",";
		strSort[i].TrimLeft();
		strSort[i].TrimRight();
		m_strSort+=strSort[i];
		if(!b_Sort[i])
			m_strSort+=" DESC";
	}
	SetDlgItemText(IDC_EDIT1,m_strSort);
}

void CSortDlg::OnOK() 
{
	// TODO: Add extra validation here
	if(m_pSet->IsOpen())
		m_pSet->Close();
	CString m_str=m_pSet->m_strSort;
	m_pSet->m_strSort=m_strSort;
	if(m_pSet->Open())
		CDialog::OnOK();
	else
		m_pSet->m_strSort=m_str;
}

void CSortDlg::OnSelchangeList1() 
{
	// TODO: Add your control notification handler code here
	int n=plist1->GetCurSel();
	if(n<0)
		return;
	CString m_str1=strSort[n];
	m_str1.TrimLeft();
	m_str1.TrimRight();
	BOOL yn=0;
	for(int i=0;i<m_NumbField;i++)
	{
		if(!m_str1.Compare(pFieldInfo[i].m_strName))
		{
			yn=1;
			break;
		}
	}
	if(yn)
		pcom1->SetCurSel(i);
	else
		pcom1->SetCurSel(-1);
	CButton *pcheck1=(CButton *)GetDlgItem(IDC_CHECK1);
	pcheck1->SetCheck(1-b_Sort[n]);	
}