32088954c5
Files correlati : Ricompilazione Demo : [ ] Commento : Eseguito splitting tra sqlrecordset ed isamrecordset. Migliorato supporto per immagini e bottoni grigi git-svn-id: svn://10.65.10.50/trunk@15009 c028cbd2-c16b-5b4b-a496-9718f37d4682
150 lines
4.5 KiB
C++
Executable File
150 lines
4.5 KiB
C++
Executable File
#ifndef __RECORDSET_H
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#define __RECORDSET_H
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#ifndef __ASSOC_H
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#include <assoc.h>
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#endif
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#ifndef __SHEET_H
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#include <sheet.h>
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#endif
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#ifndef __VARIANT_H
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#include <variant.h>
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#endif
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struct TRecordset_column_info : public TObject
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{
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TString _name; // Table.Column
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int _width, _pos;
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TFieldtypes _type;
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TRecordset_column_info() : _width(0), _pos(0), _type(_alfafld) {}
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};
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///////////////////////////////////////////////////////////
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// TRecordset
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///////////////////////////////////////////////////////////
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enum TRecordsetExportFormat { fmt_unknown, fmt_html, fmt_text, fmt_silk, fmt_campo, fmt_dbf };
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class TRecordset : public TObject
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{
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TAssoc_array _var;
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TString_array _varnames;
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const TRecordset* _parentset;
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protected:
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bool save_as_html(const char* path);
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bool save_as_silk(const char* path);
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bool save_as_text(const char* path);
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bool save_as_campo(const char* path);
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bool save_as_dbf(const char* table, int mode);
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void find_and_reset_vars();
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void parsed_text(TString& sql) const;
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TVariant& get_tmp_var() const;
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bool export_dbf(int logicnum);
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public: // Absolutely needed methods
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virtual TRecnotype items() const pure;
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virtual bool move_to(TRecnotype pos) pure;
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virtual TRecnotype current_row() const pure;
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virtual void requery() pure;
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bool empty() const { return items() == 0; }
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virtual const TString& query_text() const pure;
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virtual bool move_first() { return move_to(0); }
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virtual bool move_prev() { return move_to(current_row()-1); }
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virtual bool move_next() { return move_to(current_row()+1); }
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virtual bool move_last() { return move_to(items()-1); }
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virtual bool bof() const { return current_row() == TRecnotype(-1); }
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virtual bool eof() const { return current_row() >= items(); }
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virtual unsigned int columns() const pure;
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virtual const TRecordset_column_info& column_info(unsigned int column) const pure;
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virtual const TVariant& get(unsigned int column) const pure;
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virtual const TString_array& variables() const { return _varnames; }
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virtual const TVariant& get_var(const char* name) const;
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virtual bool set_var(const char* name, const TVariant& var, bool create = false);
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virtual bool ask_variables(bool all);
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virtual int find_column(const char* column_name) const;
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virtual const TVariant& get(const char* column_name) const;
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virtual const TToken_string& sheet_head() const;
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// mode = 0|1=append 2=update 3=update|append 4=zap before writing
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virtual bool save_as(const char* path, TRecordsetExportFormat fmt = fmt_unknown, int mode = 0);
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void set_parent(const TRecordset* rs) { _parentset = rs; }
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TRecordset();
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virtual ~TRecordset() { }
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};
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///////////////////////////////////////////////////////////
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// TISAM_recordset
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///////////////////////////////////////////////////////////
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class TISAM_recordset : public TRecordset
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{
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TString _use;
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TRelation* _relation;
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TCursor* _cursor;
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TArray _column; // Column infos
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protected:
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TRelation* relation() const;
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virtual void reset();
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virtual const TVariant& get_field(int logic, const char* field) const;
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virtual void set_custom_filter(TCursor& cursor) const { }
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public:
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bool valid_cursor() { return _cursor != NULL; }
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virtual TCursor* cursor() const;
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void set(const char* use);
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virtual void requery();
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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;
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virtual unsigned int columns() const;
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virtual const TRecordset_column_info& column_info(unsigned int c) const;
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virtual const TVariant& get(unsigned int column) const;
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virtual const TVariant& get(const char* column_name) const;
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virtual const TString& query_text() const { return _use; }
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TISAM_recordset(const char* use);
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virtual ~TISAM_recordset();
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};
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///////////////////////////////////////////////////////////
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// TRecordset_sheet
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///////////////////////////////////////////////////////////
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class TRecordset_sheet : public TSheet
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{
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TRecordset& _query;
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protected:
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virtual void get_row(long r, TToken_string& row);
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virtual long get_items() const;
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public:
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TRecordset_sheet(TRecordset& sql, const char* title = "Query", byte buttons = 0);
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};
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///////////////////////////////////////////////////////////
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// Utility
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///////////////////////////////////////////////////////////
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bool list_custom_files(const char* ext, const char* library, TString_array& files);
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bool select_custom_file(TFilename& path, const char* ext, const char* library = NULL);
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const TString& logic2table(int logic_num);
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int table2logic(const TString& name);
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TRecordset* create_recordset(const TString& sql);
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#endif |