195 lines
4.3 KiB
C++
195 lines
4.3 KiB
C++
#ifndef __DBF_TOOLS_H
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#define __DBF_TOOLS_H
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#include "DBFRecordset.h "
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//////////////////////////////////////////////////////////////////////////////
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// sg modify 090922，整体修改了DbfTool.h、DbfTool.cpp文件
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// 用新的头文件、库文件，替换掉CODE_BASE
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//////////////////////////////////////////////////////////////////////////////
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#define CMP_SENSITIVE 0
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#define CMP_INSENSITIVE 1
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#define CMP_MATCH 2
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void xh1cpy(char *to, const char *src);
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class DbfTable;
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// 表列信息（DBFField：name、type、len、dec）
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class TDBFUTILITY_IMPEXP FieldInfo: public DBFField
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{
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public:
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FieldInfo(const TCHAR *n = NULL, int t = 0, int l = 0, int d = 0);
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FieldInfo(const FieldInfo &src) {
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InitClear();
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*this = src;
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}
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~FieldInfo() {}
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FieldInfo & operator= (const FieldInfo &src);
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void InitClear();
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int operator !() { return m_strName.IsEmpty(); }
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static void ReleaseArray(FieldInfo *p);
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};
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// 单元格，结构＋内容
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// 移植后，该类的部分内容，找不到完全对应的接口；不推荐使用
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class TDBFUTILITY_IMPEXP FieldContent: public FIELD_REC
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{
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private:
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static CString csValue;
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public:
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FieldContent() {}
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// 数据类型
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TCHAR GetFieldType() const;
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operator int () const;
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operator float () const; // Add on 2002/9/20
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operator double () const;
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operator const TCHAR * () const;
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FieldContent & operator = (int i);
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FieldContent & operator = (double d);
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FieldContent & operator = (const TCHAR *str);
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int CompareTo(const FieldContent &otherOne) const;
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#ifdef __AFXDISP_H__
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COleVariant AsVariant() const;
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FieldContent & operator = (const COleVariant &src);
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#endif
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};
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// 数据库
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class TDBFUTILITY_IMPEXP CodeBase
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{
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public:
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CodeBase();
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~CodeBase();
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DbfTable *Open(const TCHAR *szFile);
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DbfTable *Create(const TCHAR *szFile, const FieldInfo *pFieldArray,
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int nCount); // sg modify 090927，增加了数组长度的参数
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public:
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DbfTable* m_pDbfTable; // sg add 090922，数据表指针
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int read_only; // sg add 091013，是否只读
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};
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// 数据表
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class TDBFUTILITY_IMPEXP DbfTable: public CDBFRecordset
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{
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public:
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DbfTable() : m_bIsAdd(false) {}
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// 列数
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int GetFieldNum();
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// 获取列信息集合，调用FieldInfo::ReleaseArray释放
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FieldInfo* GetFieldInfo();
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// 获取指定列，n=0，1，2，......
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FieldContent* GetFieldContent(int n);
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FieldContent* GetFieldContent(const TCHAR *szFieldName);
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// 记录数，bSkipDeleted控制是否计算被删除的记录
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long GetRecordCount(int bSkipDeleted);
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long GetPosition();
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// 判断记录是否被delete
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BOOL IsDeleted();
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BOOL IsEOF();
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BOOL IsBOF();
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BOOL operator !() {
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return (IsEOF() || IsBOF());
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}
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// 增加记录，成对使用，中间设置单元格内容
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void AppendBegin();
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void AppendEnd();
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// 首先增加EDIT标记，然后更新记录
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BOOL Pack();
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void Close();
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void Delete();
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// 未实现，无法找到对应的移植方法。应用层也未使用
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void Recall() {}
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// Iteration
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BOOL MoveFirst(int bSkipDeleted = 1);
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BOOL MoveLast(int bSkipDeleted = 1);
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BOOL MoveNext(int bSkipDeleted = 1);
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BOOL MovePrev(int bSkipDeleted = 1);
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// nRecNo=0，1，2，......
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BOOL MoveTo(long nRecNo);
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BOOL MoveTo(const TCHAR *szKey, const TCHAR *szValue,
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int nMethod = CMP_SENSITIVE, int bSkipDeleted = 1);
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BOOL MoveFirst(const TCHAR *szKey, const TCHAR *szValue,
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int nMethod = CMP_SENSITIVE, int bSkipDeleted = 1);
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BOOL MoveNext(const TCHAR *szKey, const TCHAR *szValue,
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int nMethod = CMP_SENSITIVE, int bSkipDeleted = 1);
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void Move(long offset, int bSkipDeleted = 1);
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void EditMode();
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void EditUpdate();
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private:
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bool m_bIsAdd; // 插入标记
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};
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#define GET_FIELD(table, fname, fvalue) (table)->GetFieldValue(fname, fvalue)
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#define SET_FIELD(table, fname, fvalue)\
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(table)->EditMode();\
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(table)->SetFieldValue(fname, fvalue);\
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(table)->EditUpdate()
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//////////////////////////////////////////////////////////////////////////////
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/*
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#define FLAG_READ 0
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#define FLAG_WRITE 1
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#define FLAG_APPEND 2
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#define FLAG_DELETE 3
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#define FLAG_PACK 4
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struct TDBFUTILITY_IMPEXP DbfAccess
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{
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TCHAR dbfname[256]; // 数据库名称
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int flag; // 读写标志
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int keynum; // 关键字段数
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char **keyFieldName; // 关键字的序号
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char **keyinfo; // 关键字段的内容
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int datanum; // 查询或更新的字段数
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char **dataFieldName; // 数据字段的名称(1,2,...)
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union {
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char *resFileName; // 数据字段的内容 read result
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char **dataIn;
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};
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DbfAccess(const TCHAR *tabName, int isWrite, int kn, int dn);
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~DbfAccess();
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};
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int TDBFUTILITY_IMPEXP DBFFUN(DbfAccess &kz);*/
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#endif |