13949df405
Files correlati : Ricompilazione Demo : [ ] Commento : Riporto preventivo delle nuove classi nate nella 3.0 git-svn-id: svn://10.65.10.50/trunk@14680 c028cbd2-c16b-5b4b-a496-9718f37d4682
130 lines
3.9 KiB
C++
Executable File
130 lines
3.9 KiB
C++
Executable File
#ifndef __TEXTSET_H
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#define __TEXTSET_H
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#ifndef __REPORT_H
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#include <report.h>
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#endif
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///////////////////////////////////////////////////////////
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// TText_recordset
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// Classe virtuale per gestire file di testo generici
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///////////////////////////////////////////////////////////
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enum TQuery_type { _qt_none, _qt_select, _qt_create };
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class TText_recordset : public TRecordset
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{
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TRecnotype _curr;
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TString_array _rec;
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protected:
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TString _query;
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TRecordset_column_info _info; // Informazioni sull'unica colonna esistente
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protected:
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virtual TQuery_type parse_query(const char* query, TFilename& table);
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virtual bool load_file(const TFilename& n);
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TToken_string& row(TRecnotype n = -1) const;
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public:
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virtual unsigned int columns() const { return 1; }
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virtual const TRecordset_column_info& column_info(unsigned int) const { return _info; }
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virtual const TRecordset_column_info& column_info(const char* column) const;
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virtual int find_column(const char* column) const;
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virtual TRecnotype items() const;
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virtual bool move_to(TRecnotype pos);
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virtual TRecnotype current_row() const { return _curr; }
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virtual void requery();
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virtual const TVariant& get(unsigned int column) const;
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public:
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virtual const TString& query_text() const { return _query; }
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virtual bool destroy(TRecnotype r = -1);
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virtual TRecnotype new_rec(const char* buf = NULL);
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virtual bool set(unsigned int fld, const TVariant& var);
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virtual bool set(const char* fld, const TVariant& var);
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virtual bool exec(const char* query);
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virtual bool save_as_text(const char* path);
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virtual bool save_as(const char* path, TRecordsetExportFormat fmt = fmt_text);
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TText_recordset(const char* query);
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};
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///////////////////////////////////////////////////////////
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// TCSV_recordset
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// Classe per file di testo con campi separati da virgola (o altro separatore)
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///////////////////////////////////////////////////////////
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class TCSV_recordset : public TText_recordset
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{
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char _separator;
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TArray _trc;
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protected:
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virtual TQuery_type parse_query(const char* query, TFilename& table);
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public:
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virtual unsigned int columns() const;
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virtual const TRecordset_column_info& column_info(unsigned int column) const;
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virtual const TVariant& get(unsigned int column) const;
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virtual TRecnotype new_rec(const char* buf = NULL);
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virtual bool set(unsigned int fld, const TVariant& var);
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virtual bool load_file(const TFilename& n);
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public:
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TCSV_recordset(const char* query);
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};
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///////////////////////////////////////////////////////////
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// TAS400_recordset
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// Classe per file di testo con record a lunghezza fissa
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///////////////////////////////////////////////////////////
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struct TAS400_column_info : public TRecordset_column_info
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{
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TVariant _default;
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bool _required;
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TAS400_column_info() : _required(false) { }
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};
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class TAS400_recordset : public TText_recordset
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{
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protected:
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TAS400_column_info _key;
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TAssoc_array _trc;
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protected:
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virtual TQuery_type parse_query(const char* query, TFilename& table);
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virtual bool load_file(const TFilename& n);
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virtual int find_column(const char* column) const;
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virtual bool save_as_text(const char* path);
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TAS400_column_info* parse_field(const char* column, int& c, bool create);
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bool set_field(const TAS400_column_info& fi, const TVariant& var);
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public:
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virtual TRecnotype new_rec(const char* buf = NULL);
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virtual bool set(const char* column, const TVariant& var);
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virtual const TRecordset_column_info& column_info(const char* colunmn) const;
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virtual const TVariant& get(const char* colunmn) const;
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public:
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bool create_field(const char* name, int pos, int len, TFieldtypes t = _alfafld,
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bool required = false, const TVariant& def = NULL_VARIANT);
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int record_length() const { return _info._width; }
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int key_length() const { return _key._width; }
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int key_position() const { return _key._pos; }
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virtual const TString& rec_type(TRecnotype r = -1) const;
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TAS400_recordset(const char* query);
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};
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#endif
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