include/wx/choice.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/choice.h
   3 // Purpose:     wxChoice class interface
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     26.07.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWindows team
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_CHOICE_H_BASE_
  13 #define _WX_CHOICE_H_BASE_
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 #ifdef __GNUG__
  20     #pragma interface "choicebase.h"
  21 #endif
  22
  23 #include "wx/control.h"     // the base class
  24
  25 // ----------------------------------------------------------------------------
  26 // global data
  27 // ----------------------------------------------------------------------------
  28
  29 WXDLLEXPORT_DATA(extern const wxChar*) wxChoiceNameStr;
  30
  31 // ----------------------------------------------------------------------------
  32 // wxChoice allows to select one of a non-modifiable list of strings
  33 // ----------------------------------------------------------------------------
  34
  35 class WXDLLEXPORT wxChoiceBase : public wxControl
  36 {
  37 public:
  38     // ctor
  39     wxChoiceBase() { m_clientDataItemsType = ClientData_None; }
  40
  41     // add a new item to the list
  42         // no client data
  43     void Append(const wxString& item) { DoAppend(item); }
  44         // with client data which belongs to the caller
  45     void Append(const wxString &item, void* clientData)
  46         { int n = DoAppend(item); SetClientData(n, clientData); }
  47         // with client data which will be deleted by the control
  48     void Append(const wxString &item, wxClientData* clientData)
  49         { int n = DoAppend(item); SetClientObject(n, clientData); }
  50
  51     // delete items from the list
  52         // one item
  53     virtual void Delete(int n) = 0;
  54         // all of them
  55     virtual void Clear() = 0;
  56
  57     // selection (at most one item may be selected in wxChoice)
  58         // get the index of currently selected item or -1
  59     virtual int GetSelection() const = 0;
  60         // get the text of the currently selected item or empty string
  61     virtual wxString GetStringSelection() const;
  62
  63         // set selectionto current item
  64     virtual void SetSelection(int n) = 0;
  65         // set selection to the current item, returns TRUE if ok
  66     virtual bool SetStringSelection(const wxString& sel);
  67
  68     // accessors to the list of strings
  69         // get the number of items in the list of strings
  70     virtual int GetCount() const = 0;
  71
  72         // find string in the list, return wxNOT_FOUND if not found
  73     virtual int FindString(const wxString& s) const = 0;
  74         // get the string with the specified index
  75     virtual wxString GetString(int n) const = 0;
  76
  77     // set/get the number of columns in the control (as they're not supporte on
  78     // most platforms, they do nothing by default)
  79     virtual void SetColumns(int WXUNUSED(n) = 1 ) { }
  80     virtual int GetColumns() const { return 1 ; }
  81
  82     // client data
  83         // untyped (isn't deleted by the control)
  84     void SetClientData( int n, void* clientData );
  85     void* GetClientData( int n ) const;
  86         // typed (is owned and deleted by the control)
  87     void SetClientObject( int n, wxClientData* clientData );
  88     wxClientData* GetClientObject( int n ) const;
  89
  90     // emulate selecting the item event.GetInt() from the control
  91     virtual void Command(wxCommandEvent &event);
  92
  93     // deprecated functions, heer for backwards compatibility only
  94     int Number() const { return GetCount(); }
  95
  96 private:
  97     // pure virtuals to implement in the derived classes
  98     virtual int DoAppend(const wxString& item) = 0;
  99
 100     virtual void DoSetClientData( int n, void* clientData ) = 0;
 101     virtual void* DoGetClientData( int n ) const = 0;
 102     virtual void DoSetClientObject( int n, wxClientData* clientData ) = 0;
 103     virtual wxClientData* DoGetClientObject( int n ) const = 0;
 104
 105     // the type of the client data for the items
 106     wxClientDataType m_clientDataItemsType;
 107     // the above pure virtuals hide these virtuals in wxWindowBase
 108     virtual void DoSetClientData(void* clientData ) { wxWindowBase::DoSetClientData(clientData); };
 109     virtual void* DoGetClientData() const { return(wxWindowBase::DoGetClientData()); };
 110     virtual void DoSetClientObject( wxClientData* clientData ) { wxWindowBase::DoSetClientObject(clientData); };
 111     virtual wxClientData* DoGetClientObject() const { return(wxWindowBase::DoGetClientObject()); };
 112 };
 113
 114 // ----------------------------------------------------------------------------
 115 // include the platform-dependent class definition
 116 // ----------------------------------------------------------------------------
 117
 118 #if defined(__WXMSW__)
 119     #include "wx/msw/choice.h"
 120 #elif defined(__WXMOTIF__)
 121     #include "wx/motif/choice.h"
 122 #elif defined(__WXGTK__)
 123     #include "wx/gtk/choice.h"
 124 #elif defined(__WXQT__)
 125     #include "wx/qt/choice.h"
 126 #elif defined(__WXMAC__)
 127     #include "wx/mac/choice.h"
 128 #elif defined(__WXPM__)
 129     #include "wx/os2/choice.h"
 130 #elif defined(__WXSTUBS__)
 131     #include "wx/stubs/choice.h"
 132 #endif
 133
 134 #endif
 135     // _WX_CHOICE_H_BASE_