include/wx/menuitem.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/menuitem.h
   3 // Purpose:     wxMenuItem class
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     25.10.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows license
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_MENUITEM_H_BASE_
  13 #define _WX_MENUITEM_H_BASE_
  14
  15 #if wxUSE_MENUS
  16
  17 // ----------------------------------------------------------------------------
  18 // headers
  19 // ----------------------------------------------------------------------------
  20
  21 #include "wx/object.h"  // base class
  22
  23 // ----------------------------------------------------------------------------
  24 // forward declarations
  25 // ----------------------------------------------------------------------------
  26
  27 class WXDLLEXPORT wxAcceleratorEntry;
  28 class WXDLLEXPORT wxMenuItem;
  29 class WXDLLEXPORT wxMenu;
  30
  31 // ----------------------------------------------------------------------------
  32 // wxMenuItem is an item in the menu which may be either a normal item, a sub
  33 // menu or a separator
  34 // ----------------------------------------------------------------------------
  35
  36 class WXDLLEXPORT wxMenuItemBase : public wxObject
  37 {
  38 public:
  39     // creation
  40     static wxMenuItem *New(wxMenu *parentMenu = (wxMenu *)NULL,
  41                            int id = wxID_SEPARATOR,
  42                            const wxString& text = wxEmptyString,
  43                            const wxString& help = wxEmptyString,
  44                            bool isCheckable = FALSE,
  45                            wxMenu *subMenu = (wxMenu *)NULL);
  46
  47     // destruction: wxMenuItem will delete its submenu
  48     virtual ~wxMenuItemBase();
  49
  50     // the menu we're in
  51     wxMenu *GetMenu() const { return m_parentMenu; }
  52
  53     // get/set id
  54     void SetId(int id) { m_id = id; }
  55     int  GetId() const { return m_id; }
  56     bool IsSeparator() const { return m_id == wxID_SEPARATOR; }
  57
  58     // the item's text (or name)
  59     //
  60     // NB: the item's text includes the accelerators and mnemonics info (if
  61     //     any), i.e. it may contain '&' or '_' or "\t..." and thus is
  62     //     different from the item's label which only contains the text shown
  63     //     in the menu
  64     virtual void SetText(const wxString& str) { m_text = str; }
  65     wxString GetLabel() const { return GetLabelFromText(m_text); }
  66     const wxString& GetText() const { return m_text; }
  67
  68     // get the label from text (implemented in platform-specific code)
  69     static wxString GetLabelFromText(const wxString& text);
  70
  71     // what kind of menu item we are
  72     virtual void SetCheckable(bool checkable) { m_isCheckable = checkable; }
  73     bool IsCheckable() const { return m_isCheckable; }
  74
  75     bool IsSubMenu() const { return m_subMenu != NULL; }
  76     void SetSubMenu(wxMenu *menu) { m_subMenu = menu; }
  77     wxMenu *GetSubMenu() const { return m_subMenu; }
  78
  79     // state
  80     virtual void Enable(bool enable = TRUE) { m_isEnabled = enable; }
  81     virtual bool IsEnabled() const { return m_isEnabled; }
  82
  83     virtual void Check(bool check = TRUE) { m_isChecked = check; }
  84     virtual bool IsChecked() const { return m_isChecked; }
  85     void Toggle() { Check(!m_isChecked); }
  86
  87     // help string (displayed in the status bar by default)
  88     void SetHelp(const wxString& str) { m_help = str; }
  89     const wxString& GetHelp() const { return m_help; }
  90
  91 #if wxUSE_ACCEL
  92     // extract the accelerator from the given menu string, return NULL if none
  93     // found
  94     static wxAcceleratorEntry *GetAccelFromString(const wxString& label);
  95
  96     // get our accelerator or NULL (caller must delete the pointer)
  97     virtual wxAcceleratorEntry *GetAccel() const;
  98
  99     // set the accel for this item - this may also be done indirectly with
 100     // SetText()
 101     virtual void SetAccel(wxAcceleratorEntry *accel);
 102 #endif // wxUSE_ACCEL
 103
 104     // compatibility only, use new functions in the new code
 105     void SetName(const wxString& str) { SetText(str); }
 106     const wxString& GetName() const { return GetText(); }
 107
 108 protected:
 109     int           m_id;             // numeric id of the item >= 0 or -1
 110     wxMenu       *m_parentMenu,     // the menu we belong to
 111                  *m_subMenu;        // our sub menu or NULL
 112     wxString      m_text,           // label of the item
 113                   m_help;           // the help string for the item
 114     bool          m_isCheckable;    // can be checked?
 115     bool          m_isChecked;      // is checked?
 116     bool          m_isEnabled;      // is enabled?
 117
 118     // some compilers need a default constructor here, do not remove
 119     wxMenuItemBase() { }
 120
 121 private:
 122     // and, if we have one ctor, compiler won't generate a default copy one, so
 123     // declare them ourselves - but don't implement as they shouldn't be used
 124     wxMenuItemBase(const wxMenuItemBase& item);
 125     wxMenuItemBase& operator=(const wxMenuItemBase& item);
 126 };
 127
 128 // ----------------------------------------------------------------------------
 129 // include the real class declaration
 130 // ----------------------------------------------------------------------------
 131
 132 #ifdef wxUSE_BASE_CLASSES_ONLY
 133     #define wxMenuItem wxMenuItemBase
 134 #else // !wxUSE_BASE_CLASSES_ONLY
 135 #if defined(__WXUNIVERSAL__)
 136     #include "wx/univ/menuitem.h"
 137 #elif defined(__WXMSW__)
 138     #include "wx/msw/menuitem.h"
 139 #elif defined(__WXMOTIF__)
 140     #include "wx/motif/menuitem.h"
 141 #elif defined(__WXGTK__)
 142     #include "wx/gtk/menuitem.h"
 143 #elif defined(__WXMAC__)
 144     #include "wx/mac/menuitem.h"
 145 #elif defined(__WXPM__)
 146     #include "wx/os2/menuitem.h"
 147 #elif defined(__WXSTUBS__)
 148     #include "wx/stubs/menuitem.h"
 149 #endif
 150 #endif // wxUSE_BASE_CLASSES_ONLY/!wxUSE_BASE_CLASSES_ONLY
 151
 152 #endif // wxUSE_MENUS
 153
 154 #endif
 155     // _WX_MENUITEM_H_BASE_