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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  18     #pragma interface "dbgrid.h"
  19 #endif
  20
  21 #if wxUSE_ODBC
  22 #if wxUSE_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_USER_EXPORTED_OBJARRAY(GenericKey,keyarray,WXDLLIMPEXP_DBGRID);
  33
  34 static const int wxUSE_QUERY = -1;
  35
  36 class WXDLLIMPEXP_DBGRID 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 WXDLLIMPEXP_DBGRID 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     // Adds a new column info (2 step creation)
  82     void AddColInfo (int colNo,
  83                     wxString type,
  84                     wxString title)
  85     {
  86         GetLast()->m_next = new wxDbGridColInfo (colNo, type, title, NULL);
  87     }
  88
  89     // Searches last
  90     wxDbGridColInfo *GetLast() { return (m_next ? m_next->GetLast() : this); }
  91
  92
  93     protected:
  94     wxDbGridColInfoBase  m_data;
  95     wxDbGridColInfo     *m_next;
  96
  97     friend class wxDbGridTableBase;
  98 };
  99
 100
 101 class WXDLLIMPEXP_DBGRID wxDbGridCellAttrProvider : public wxGridCellAttrProvider
 102 {
 103 public:
 104     wxDbGridCellAttrProvider();
 105     wxDbGridCellAttrProvider(wxDbTable *tab, wxDbGridColInfoBase* ColInfo);
 106     virtual ~wxDbGridCellAttrProvider();
 107
 108     virtual wxGridCellAttr *GetAttr(int row, int col,
 109                                     wxGridCellAttr::wxAttrKind kind) const;
 110     virtual void AssignDbTable(wxDbTable *tab);
 111 private:
 112     wxDbTable           *m_data;
 113     wxDbGridColInfoBase *m_ColInfo;
 114 };
 115
 116
 117 class WXDLLIMPEXP_DBGRID wxDbGridTableBase : public wxGridTableBase
 118 {
 119 public:
 120     wxDbGridTableBase(wxDbTable *tab, wxDbGridColInfo *ColInfo,
 121               int count = wxUSE_QUERY, bool takeOwnership = true);
 122     ~wxDbGridTableBase();
 123
 124     virtual int GetNumberRows()
 125     {
 126         wxLogDebug(_T(" GetNumberRows() = %i"),m_rowtotal);
 127         return m_rowtotal;
 128     }
 129     virtual int GetNumberCols()
 130     {
 131         wxLogDebug(_T(" GetNumberCols() = %i"),m_nocols);
 132         return m_nocols;
 133     }
 134     virtual bool     IsEmptyCell(int row, int col) ;
 135     virtual wxString GetValue(int row, int col) ;
 136     virtual void     SetValue(int row, int col, const wxString& value);
 137     virtual bool     CanHaveAttributes();
 138     virtual wxString GetTypeName(int row, int col);
 139     virtual bool     CanGetValueAs(int row, int col, const wxString& typeName);
 140     virtual bool     CanSetValueAs(int row, int col, const wxString& typeName);
 141     virtual long     GetValueAsLong(int row, int col);
 142     virtual double   GetValueAsDouble(int row, int col);
 143     virtual bool     GetValueAsBool(int row, int col);
 144     virtual void     SetValueAsLong(int row, int col, long value);
 145     virtual void     SetValueAsDouble(int row, int col, double value);
 146     virtual void     SetValueAsBool(int row, int col, bool value);
 147     virtual void    *GetValueAsCustom(int row, int col, const wxString& typeName);
 148     virtual void     SetValueAsCustom(int row, int col, const wxString& typeName, void* value);
 149
 150
 151     virtual wxString GetColLabelValue(int col);
 152
 153     virtual bool     AssignDbTable(wxDbTable *tab, int count = wxUSE_QUERY, bool takeOwnership=true);
 154     virtual void     ValidateRow(int row);
 155     virtual bool     UpdateRow(int row) const
 156     {
 157         if (m_row != row)
 158             return true;
 159         else
 160             return Writeback();
 161     }
 162
 163 private:
 164     //Operates on the current row
 165     bool Writeback() const;
 166
 167     typedef wxGridTableBase inherited;
 168     keyarray     m_keys;
 169     wxDbTable   *m_data;
 170     bool         m_dbowner;
 171     int          m_rowtotal;
 172     int          m_nocols;
 173     int          m_row;
 174     wxDbGridColInfoBase *m_ColInfo;
 175     bool         m_rowmodified;
 176 };
 177
 178 #endif  // #if wxUSE_GRID
 179 #endif  // #if wxUSE_ODBC
 180
 181 #endif  // _WX_GENERIC_DBGRID_H_