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 licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_MENUITEM_H_BASE_
  13 #define _WX_MENUITEM_H_BASE_
  14
  15 #include "wx/defs.h"
  16
  17 #if wxUSE_MENUS
  18
  19 // ----------------------------------------------------------------------------
  20 // headers
  21 // ----------------------------------------------------------------------------
  22
  23 #include "wx/object.h"  // base class
  24
  25 // ----------------------------------------------------------------------------
  26 // forward declarations
  27 // ----------------------------------------------------------------------------
  28
  29 class WXDLLEXPORT wxAcceleratorEntry;
  30 class WXDLLEXPORT wxMenuItem;
  31 class WXDLLEXPORT wxMenu;
  32
  33 // ----------------------------------------------------------------------------
  34 // wxMenuItem is an item in the menu which may be either a normal item, a sub
  35 // menu or a separator
  36 // ----------------------------------------------------------------------------
  37
  38 class WXDLLEXPORT wxMenuItemBase : public wxObject
  39 {
  40 public:
  41     // creation
  42     static wxMenuItem *New(wxMenu *parentMenu = (wxMenu *)NULL,
  43                            int itemid = wxID_SEPARATOR,
  44                            const wxString& text = wxEmptyString,
  45                            const wxString& help = wxEmptyString,
  46                            wxItemKind kind = wxITEM_NORMAL,
  47                            wxMenu *subMenu = (wxMenu *)NULL);
  48
  49     // destruction: wxMenuItem will delete its submenu
  50     virtual ~wxMenuItemBase();
  51
  52     // the menu we're in
  53     wxMenu *GetMenu() const { return m_parentMenu; }
  54     void SetMenu(wxMenu* menu) { m_parentMenu = menu; }
  55
  56     // get/set id
  57     void SetId(int itemid) { m_id = itemid; }
  58     int  GetId() const { return m_id; }
  59     bool IsSeparator() const { return m_id == wxID_SEPARATOR; }
  60
  61     // the item's text (or name)
  62     //
  63     // NB: the item's text includes the accelerators and mnemonics info (if
  64     //     any), i.e. it may contain '&' or '_' or "\t..." and thus is
  65     //     different from the item's label which only contains the text shown
  66     //     in the menu
  67     virtual void SetText(const wxString& str) { m_text = str; }
  68     wxString GetLabel() const { return GetLabelFromText(m_text); }
  69     const wxString& GetText() const { return m_text; }
  70
  71     // get the label from text (implemented in platform-specific code)
  72     static wxString GetLabelFromText(const wxString& text);
  73
  74     // what kind of menu item we are
  75     wxItemKind GetKind() const { return m_kind; }
  76     void SetKind(wxItemKind kind) { m_kind = kind; }
  77
  78     virtual void SetCheckable(bool checkable) { m_kind = checkable ? wxITEM_CHECK : wxITEM_NORMAL; }
  79     bool IsCheckable() const
  80         { return m_kind == wxITEM_CHECK || m_kind == wxITEM_RADIO; }
  81
  82     bool IsSubMenu() const { return m_subMenu != NULL; }
  83     void SetSubMenu(wxMenu *menu) { m_subMenu = menu; }
  84     wxMenu *GetSubMenu() const { return m_subMenu; }
  85
  86     // state
  87     virtual void Enable(bool enable = true) { m_isEnabled = enable; }
  88     virtual bool IsEnabled() const { return m_isEnabled; }
  89
  90     virtual void Check(bool check = true) { m_isChecked = check; }
  91     virtual bool IsChecked() const { return m_isChecked; }
  92     void Toggle() { Check(!m_isChecked); }
  93
  94     // help string (displayed in the status bar by default)
  95     void SetHelp(const wxString& str) { m_help = str; }
  96     const wxString& GetHelp() const { return m_help; }
  97
  98 #if wxUSE_ACCEL
  99     // extract the accelerator from the given menu string, return NULL if none
 100     // found
 101     static wxAcceleratorEntry *GetAccelFromString(const wxString& label);
 102
 103     // get our accelerator or NULL (caller must delete the pointer)
 104     virtual wxAcceleratorEntry *GetAccel() const;
 105
 106     // set the accel for this item - this may also be done indirectly with
 107     // SetText()
 108     virtual void SetAccel(wxAcceleratorEntry *accel);
 109 #endif // wxUSE_ACCEL
 110
 111     // compatibility only, use new functions in the new code
 112     void SetName(const wxString& str) { SetText(str); }
 113     const wxString& GetName() const { return GetText(); }
 114
 115     static wxMenuItem *New(wxMenu *parentMenu,
 116                            int itemid,
 117                            const wxString& text,
 118                            const wxString& help,
 119                            bool isCheckable,
 120                            wxMenu *subMenu = (wxMenu *)NULL)
 121     {
 122         return New(parentMenu, itemid, text, help,
 123                    isCheckable ? wxITEM_CHECK : wxITEM_NORMAL, subMenu);
 124     }
 125
 126 protected:
 127     int           m_id;             // numeric id of the item >= 0 or wxID_ANY or wxID_SEPARATOR
 128     wxMenu       *m_parentMenu,     // the menu we belong to
 129                  *m_subMenu;        // our sub menu or NULL
 130     wxString      m_text,           // label of the item
 131                   m_help;           // the help string for the item
 132     wxItemKind    m_kind;           // seperator/normal/check/radio item?
 133     bool          m_isChecked;      // is checked?
 134     bool          m_isEnabled;      // is enabled?
 135
 136     // this ctor is for the derived classes only, we're never created directly
 137     wxMenuItemBase(wxMenu *parentMenu = (wxMenu *)NULL,
 138                    int itemid = wxID_SEPARATOR,
 139                    const wxString& text = wxEmptyString,
 140                    const wxString& help = wxEmptyString,
 141                    wxItemKind kind = wxITEM_NORMAL,
 142                    wxMenu *subMenu = (wxMenu *)NULL);
 143
 144 private:
 145     // and, if we have one ctor, compiler won't generate a default copy one, so
 146     // declare them ourselves - but don't implement as they shouldn't be used
 147     wxMenuItemBase(const wxMenuItemBase& item);
 148     wxMenuItemBase& operator=(const wxMenuItemBase& item);
 149 };
 150
 151 // ----------------------------------------------------------------------------
 152 // include the real class declaration
 153 // ----------------------------------------------------------------------------
 154
 155 #ifdef wxUSE_BASE_CLASSES_ONLY
 156     #define wxMenuItem wxMenuItemBase
 157 #else // !wxUSE_BASE_CLASSES_ONLY
 158 #if defined(__WXUNIVERSAL__)
 159     #include "wx/univ/menuitem.h"
 160 #elif defined(__WXPALMOS__)
 161     #include "wx/palmos/menuitem.h"
 162 #elif defined(__WXMSW__)
 163     #include "wx/msw/menuitem.h"
 164 #elif defined(__WXMOTIF__)
 165     #include "wx/motif/menuitem.h"
 166 #elif defined(__WXGTK__)
 167     #include "wx/gtk/menuitem.h"
 168 #elif defined(__WXMAC__)
 169     #include "wx/mac/menuitem.h"
 170 #elif defined(__WXCOCOA__)
 171     #include "wx/cocoa/menuitem.h"
 172 #elif defined(__WXPM__)
 173     #include "wx/os2/menuitem.h"
 174 #endif
 175 #endif // wxUSE_BASE_CLASSES_ONLY/!wxUSE_BASE_CLASSES_ONLY
 176
 177 #endif // wxUSE_MENUS
 178
 179 #endif
 180     // _WX_MENUITEM_H_BASE_