include/wx/univ/menuitem.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/univ/menuitem.h
   3 // Purpose:     wxMenuItem class for wxUniversal
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     05.05.01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_UNIV_MENUITEM_H_
  13 #define _WX_UNIV_MENUITEM_H_
  14
  15 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  16     #pragma interface "univmenuitem.h"
  17 #endif
  18
  19 // ----------------------------------------------------------------------------
  20 // wxMenuItem implements wxMenuItemBase
  21 // ----------------------------------------------------------------------------
  22
  23 class WXDLLEXPORT wxMenuItem : public wxMenuItemBase
  24 {
  25 public:
  26     // ctor & dtor
  27     wxMenuItem(wxMenu *parentMenu = (wxMenu *)NULL,
  28                int id = wxID_SEPARATOR,
  29                const wxString& name = wxEmptyString,
  30                const wxString& help = wxEmptyString,
  31                wxItemKind kind = wxITEM_NORMAL,
  32                wxMenu *subMenu = (wxMenu *)NULL);
  33     virtual ~wxMenuItem();
  34
  35     // override base class virtuals to update the item appearance on screen
  36     virtual void SetText(const wxString& text);
  37     virtual void SetCheckable(bool checkable);
  38
  39     virtual void Enable(bool enable = TRUE);
  40     virtual void Check(bool check = TRUE);
  41
  42     // we add some extra functions which are also available under MSW from
  43     // wxOwnerDrawn class - they will be moved to wxMenuItemBase later
  44     // hopefully
  45     void SetBitmaps(const wxBitmap& bmpChecked,
  46                     const wxBitmap& bmpUnchecked = wxNullBitmap);
  47     void SetBitmap(const wxBitmap& bmp) { SetBitmaps(bmp); }
  48     const wxBitmap& GetBitmap(bool checked = TRUE) const
  49       { return checked ? m_bmpChecked : m_bmpUnchecked; }
  50
  51     // mark item as belonging to the given radio group
  52     void SetAsRadioGroupStart();
  53     void SetRadioGroupStart(int start);
  54     void SetRadioGroupEnd(int end);
  55
  56     // wxUniv-specific methods for implementation only starting from here
  57
  58     // get the accel index of our label or -1 if none
  59     int GetAccelIndex() const { return m_indexAccel; }
  60
  61     // get the accel string (displayed to the right of the label)
  62     const wxString& GetAccelString() const { return m_strAccel; }
  63
  64     // set/get the y coord and the height of this item: note that it must be
  65     // set first and retrieved later, the item doesn't calculate it itself
  66     void SetGeometry(wxCoord y, wxCoord height)
  67     {
  68         m_posY = y;
  69         m_height = height;
  70     }
  71
  72     wxCoord GetPosition() const
  73     {
  74         wxASSERT_MSG( m_posY != -1, _T("must call SetHeight first!") );
  75
  76         return m_posY;
  77     }
  78
  79     wxCoord GetHeight() const
  80     {
  81         wxASSERT_MSG( m_height != -1, _T("must call SetHeight first!") );
  82
  83         return m_height;
  84     }
  85
  86 protected:
  87     // notify the menu about the change in this item
  88     inline void NotifyMenu();
  89
  90     // set the accel index and string from text
  91     void UpdateAccelInfo();
  92
  93     // the bitmaps (may be invalid, then they're not used)
  94     wxBitmap m_bmpChecked,
  95              m_bmpUnchecked;
  96
  97     // the positions of the first and last items of the radio group this item
  98     // belongs to or -1: start is the radio group start and is valid for all
  99     // but first radio group items (m_isRadioGroupStart == FALSE), end is valid
 100     // only for the first one
 101     union
 102     {
 103         int start;
 104         int end;
 105     } m_radioGroup;
 106
 107     // does this item start a radio group?
 108     bool m_isRadioGroupStart;
 109
 110     // the position of the accelerator in our label, -1 if none
 111     int m_indexAccel;
 112
 113     // the accel string (i.e. "Ctrl-Q" or "Alt-F1")
 114     wxString m_strAccel;
 115
 116     // the position and height of the displayed item
 117     wxCoord m_posY,
 118             m_height;
 119
 120 private:
 121     DECLARE_DYNAMIC_CLASS(wxMenuItem)
 122 };
 123
 124 #endif // _WX_UNIV_MENUITEM_H_
 125