[6127] | 1 | /**********************************************************************
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| 2 | *
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| 3 | * Fdt.h
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| 4 | * Copyright (C) 2003 UNESCO
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| 5 | *
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| 6 | * A component of the Greenstone digital library software
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| 7 | * from the New Zealand Digital Library Project at the
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| 8 | * University of Waikato, New Zealand.
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| 9 | *
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| 10 | * This program is free software; you can redistribute it and/or modify
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| 11 | * it under the terms of the GNU General Public License as published by
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| 12 | * the Free Software Foundation; either version 2 of the License, or
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| 13 | * (at your option) any later version.
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| 14 | *
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| 15 | * This program is distributed in the hope that it will be useful,
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| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 18 | * GNU General Public License for more details.
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| 19 | *
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| 20 | * You should have received a copy of the GNU General Public License
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| 21 | * along with this program; if not, write to the Free Software
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| 22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 23 | *
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| 24 | *********************************************************************/
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| 25 |
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| 26 | ////////////////////////////////////////////////////////////////////////////////////
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| 27 | // Fdt.h
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| 28 |
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| 29 | #ifndef __FDT_H__
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| 30 | #define __FDT_H__
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| 31 |
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| 32 | #include <vector>
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| 33 | #include "mytchar.h"
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| 34 |
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| 35 | #define FDT_NAME_LENG 30 // maximum name length in FDT_FILE
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| 36 | #define FDT_SFLD_LENG 20 // maximum subfield length in FDT_FILE
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| 37 |
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| 38 | #ifndef __CFIELDDEF__
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| 39 | #define __CFIELDDEF__
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| 40 |
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| 41 | class CFieldDef
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| 42 | {
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| 43 | public:
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| 44 | enum FieldType {
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| 45 | charField = 'C',
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| 46 | dateField = 'D',
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| 47 | numericField = 'N',
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| 48 | logicalField = 'L',
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| 49 | memoField = 'M'
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| 50 | };
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| 51 |
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| 52 | char name[31]; // dbf field names are 10 chars long max.
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| 53 | // If this application is compiled with _UNICODE switch,
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| 54 | // the field name will be converted to wide chars
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| 55 | // when the column header is displayed in the grid.
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| 56 | char type;
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| 57 | short len;
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| 58 | short width;
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| 59 | short decimals;
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| 60 | int offset;
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| 61 | short display_width;
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| 62 | };
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| 63 | #endif // __CFIELDDEF__
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| 64 |
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| 65 |
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| 66 |
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| 67 | class CFdtEntry
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| 68 | {
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| 69 | public:
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| 70 | CFdtEntry() : tag(0), len(0), type(0), rep(0)
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| 71 | { name[0] = '\0'; subfields[0] = '\0'; }
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| 72 | void Clear()
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| 73 | {
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| 74 | tag = len = type = rep = 0;
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| 75 | name[0] = '\0'; subfields[0] = '\0';
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| 76 | }
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| 77 | char name[FDT_NAME_LENG+1];
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| 78 | char subfields[FDT_SFLD_LENG+1];
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| 79 | int tag;
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| 80 | int len;
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| 81 | int type; //X=0
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| 82 | int rep; //repeatable 1, non rep. 0
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| 83 | CFdtEntry& operator=(const CFdtEntry& rhs)
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| 84 | {
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| 85 | if (&name[0] != &rhs.name[0])
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| 86 | {
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| 87 | Copy(rhs);
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| 88 | }
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| 89 | return *this;
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| 90 | }
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| 91 |
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| 92 | void Copy(const CFdtEntry &rhs)
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| 93 | {
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| 94 | strcpy(name, rhs.name);
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| 95 | strcpy(subfields, rhs.subfields);
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| 96 | tag = rhs.tag;
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| 97 | len = rhs.len;
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| 98 | type = rhs.type;
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| 99 | rep = rhs.rep;
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| 100 | }
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| 101 | };
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| 102 |
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| 103 |
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| 104 | void FormatFdtEntry(CFdtEntry &e, ustring &s);
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| 105 |
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| 106 |
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| 107 |
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| 108 | class CFdt
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| 109 | {
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| 110 | protected:
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| 111 | std::vector<CFdtEntry> m_aFdt;
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| 112 | int m_nFieldCount; // Num. of fields
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| 113 | std::vector<CFieldDef*> m_fieldArray; // Array with fields
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| 114 |
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| 115 | long m_iCurrentRecord; // Current read record stored in
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| 116 | CFdtEntry m_fdtEntry;
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| 117 | bool m_bReadOnly;
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| 118 | bool m_bIsEmpty;
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| 119 | bool m_bDirty; // True if m_fdtEntry modified
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| 120 | bool m_bAppend;
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| 121 | public:
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| 122 | ustring m_sFileName; // Fdt full pathname
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| 123 | std::vector<std::string> m_asPrelude; // What is bef ***
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| 124 | public:
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| 125 | CFdt();
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| 126 | virtual ~CFdt();
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| 127 |
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| 128 | bool Load(const _TCHAR *fname);
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| 129 | int GetEntryCount() { return m_aFdt.size(); }
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| 130 |
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| 131 | CFdtEntry GetEntryAt(int i)
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| 132 | {
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[26668] | 133 | #ifdef _MSC_VER
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[6127] | 134 | return m_aFdt.at(i);
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| 135 | #else
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| 136 | return m_aFdt[i];
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| 137 | #endif
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| 138 | }
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| 139 |
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| 140 | int GetFieldCount() { return m_nFieldCount; }
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| 141 |
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| 142 | bool Open(const char* szFileName, bool readOnly=true);
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| 143 |
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| 144 | void InitData();
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| 145 |
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| 146 | void Close();
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| 147 |
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| 148 | void DeleteContents();
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| 149 |
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| 150 | void Store(const char* fileName);
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| 151 | int InitFields ();
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| 152 |
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| 153 | CFieldDef* GetField(int n) const;
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| 154 |
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| 155 | CFdtEntry GetAt(int i);
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| 156 |
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| 157 | const CFdtEntry GetAt(int i) const;
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| 158 |
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| 159 | int Append(CFdtEntry& e);
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| 160 |
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| 161 | void RemoveAt(int i);
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| 162 | void SetAt(int i, CFdtEntry& e);
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| 163 |
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| 164 | bool Seek(long iRecord);
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| 165 | void Flush();
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| 166 | bool GetValue(int n, std::string& result);
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| 167 | bool SetValue(int n, const char* pszValue);
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| 168 |
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| 169 | int GetRecordCount() { return m_aFdt.size(); }
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| 170 | };
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| 171 |
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| 172 | #endif
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