include/wx/dbgrid.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        dbgrid.h
   3 // Purpose:     Displays a wxDbTable in a wxGrid.
   4 // Author:      Roger Gammans, Paul Gammans
   5 // Modified by:
   6 // Created:
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1999 The Computer Surgery (roger@computer-surgery.co.uk)
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11 // Branched From : dbgrid.h,v 1.19 2001/03/28 11:16:01
  12 ///////////////////////////////////////////////////////////////////////////////
  13
  14 #ifndef _WX_GENERIC_DBGRID_H_
  15 #define _WX_GENERIC_DBGRID_H_
  16
  17 #ifdef __GNUG__
  18     #pragma interface "dbgrid.h"
  19 #endif
  20
  21 #if wxUSE_ODBC
  22 #if wxUSE_NEW_GRID
  23
  24 #include "wx/log.h"
  25 #include "wx/dbtable.h"
  26 #include "wx/dynarray.h"
  27 #include "wx/grid.h"
  28 #include "wx/dbkeyg.h"
  29
  30 #define wxGRID_VALUE_DBAUTO     _T("dbauto")
  31
  32 WX_DECLARE_OBJARRAY(GenericKey,keyarray);
  33
  34 static const int wxUSE_QUERY = -1;
  35
  36 class wxDbGridColInfoBase
  37 {
  38 public:
  39     //Default ctor
  40     wxDbGridColInfoBase() { }
  41     wxDbGridColInfoBase(int colNo,
  42                         wxString type, wxString title) :
  43                         DbCol(colNo),
  44                         wxtypename(type),
  45                         Title(title)
  46                         { }
  47     //Copy Ctor
  48     wxDbGridColInfoBase(const wxDbGridColInfoBase& ref)
  49     {
  50         DbCol       = ref.DbCol;
  51         wxtypename  = ref.wxtypename;
  52         Title       = ref.Title;
  53     }
  54     //Empty destructor for member obj's
  55     ~wxDbGridColInfoBase() {}
  56
  57     int        DbCol;
  58     wxString   wxtypename;
  59     wxString   Title;
  60 };
  61
  62
  63 class wxDbGridColInfo
  64 {
  65 public:
  66     wxDbGridColInfo(int colNo,
  67                     wxString type,
  68                     wxString title,
  69                     wxDbGridColInfo *next) :
  70         m_data(colNo,type,title)
  71     {
  72         m_next=next;
  73     }
  74
  75     //Empty List
  76     ~wxDbGridColInfo() { delete m_next; }
  77
  78     //Recurse to find length.
  79     int Length() { return (m_next ? m_next->Length() +1 :  1); }
  80
  81     protected:
  82     wxDbGridColInfoBase  m_data;
  83     wxDbGridColInfo     *m_next;
  84
  85     friend class wxDbGridTableBase;
  86 };
  87
  88
  89 class wxDbGridCellAttrProvider : public wxGridCellAttrProvider
  90 {
  91 public:
  92     wxDbGridCellAttrProvider();
  93     wxDbGridCellAttrProvider(wxDbTable *tab, wxDbGridColInfoBase* ColInfo);
  94     virtual ~wxDbGridCellAttrProvider();
  95
  96     virtual wxGridCellAttr *GetAttr(int row, int col,
  97                                     wxGridCellAttr::wxAttrKind kind) const;
  98     virtual void AssignDbTable(wxDbTable *tab);
  99 private:
 100     wxDbTable           *m_data;
 101     wxDbGridColInfoBase *m_ColInfo;
 102 };
 103
 104
 105 class wxDbGridTableBase : public wxGridTableBase
 106 {
 107 public:
 108     wxDbGridTableBase(wxDbTable *tab, wxDbGridColInfo *ColInfo,
 109               int count = wxUSE_QUERY, bool takeOwnership = TRUE);
 110     ~wxDbGridTableBase();
 111
 112     virtual int GetNumberRows()
 113     {
 114         wxLogDebug(" GetNumberRows() = %i",m_rowtotal);
 115         return m_rowtotal;
 116     }
 117     virtual int GetNumberCols()
 118     {
 119         wxLogDebug(" GetNumberCols() = %i",m_nocols);
 120         return m_nocols;
 121     }
 122     virtual bool     IsEmptyCell(int row, int col) ;
 123     virtual wxString GetValue(int row, int col) ;
 124     virtual void     SetValue(int row, int col, const wxString& value);
 125     virtual bool     CanHaveAttributes();
 126     virtual wxString GetTypeName(int row, int col);
 127     virtual bool     CanGetValueAs(int row, int col, const wxString& typeName);
 128     virtual bool     CanSetValueAs(int row, int col, const wxString& typeName);
 129     virtual long     GetValueAsLong(int row, int col);
 130     virtual double   GetValueAsDouble(int row, int col);
 131     virtual bool     GetValueAsBool(int row, int col);
 132     virtual void     SetValueAsLong(int row, int col, long value);
 133     virtual void     SetValueAsDouble(int row, int col, double value);
 134     virtual void     SetValueAsBool(int row, int col, bool value);
 135     virtual void    *GetValueAsCustom(int row, int col, const wxString& typeName);
 136     virtual void     SetValueAsCustom(int row, int col, const wxString& typeName, void* value);
 137
 138
 139     virtual wxString wxDbGridTableBase::GetColLabelValue(int col);
 140
 141     virtual bool     AssignDbTable(wxDbTable *tab, int count = wxUSE_QUERY, bool takeOwnership=TRUE);
 142     virtual void     ValidateRow(int row);
 143     virtual bool     UpdateRow(int row) const
 144     {
 145         if (m_row != row)
 146             return TRUE;
 147         else
 148             return Writeback();
 149     }
 150
 151 private:
 152     //Operates on the current row
 153     bool Writeback() const;
 154
 155     typedef wxGridTableBase inherited;
 156     keyarray     m_keys;
 157     wxDbTable   *m_data;
 158     bool         m_dbowner;
 159     int          m_rowtotal;
 160     int          m_nocols;
 161     int          m_row;
 162     wxDbGridColInfoBase *m_ColInfo;
 163     bool         m_rowmodified;
 164 };
 165
 166 #endif  // #if wxUSE_NEW_GRID
 167 #endif  // #if wxUSE_ODBC
 168
 169 #endif  // _WX_GENERIC_DBGRID_H_