include/wx/motif/menu.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        menu.h
   3 // Purpose:     wxMenu, wxMenuBar classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_MENU_H_
  13 #define _WX_MENU_H_
  14
  15 #ifdef __GNUG__
  16 #pragma interface "menu.h"
  17 #endif
  18
  19 #include "wx/defs.h"
  20 #include "wx/event.h"
  21
  22 class WXDLLEXPORT wxMenuItem;
  23 class WXDLLEXPORT wxMenuBar;
  24 class WXDLLEXPORT wxMenu;
  25
  26 WXDLLEXPORT_DATA(extern const char*) wxEmptyString;
  27
  28 // ----------------------------------------------------------------------------
  29 // Menu
  30 // ----------------------------------------------------------------------------
  31 class WXDLLEXPORT wxMenu: public wxEvtHandler
  32 {
  33   DECLARE_DYNAMIC_CLASS(wxMenu)
  34
  35 public:
  36   // ctor & dtor
  37   wxMenu(const wxString& title = wxEmptyString, const wxFunction func = NULL);
  38   ~wxMenu();
  39
  40   // construct menu
  41     // append items to the menu
  42       // separator line
  43   void AppendSeparator();
  44       // normal item
  45   void Append(int id, const wxString& Label, const wxString& helpString = wxEmptyString,
  46               bool checkable = FALSE);
  47       // a submenu
  48   void Append(int id, const wxString& Label, wxMenu *SubMenu,
  49               const wxString& helpString = wxEmptyString);
  50       // the most generic form (create wxMenuItem first and use it's functions)
  51   void Append(wxMenuItem *pItem);
  52     // insert a break in the menu
  53   void Break();
  54     // delete an item
  55   void Delete(int id);
  56
  57   // menu item control
  58   void Enable(int id, bool Flag);
  59   bool Enabled(int id) const;
  60   inline bool IsEnabled(int id) const { return Enabled(id); };
  61   void Check(int id, bool Flag);
  62   bool Checked(int id) const;
  63   inline bool IsChecked(int id) const { return IsChecked(id); };
  64
  65   // item properties
  66     // title
  67   void SetTitle(const wxString& label);
  68   const wxString GetTitle() const;
  69     // label
  70   void SetLabel(int id, const wxString& label);
  71   wxString GetLabel(int id) const;
  72     // help string
  73   virtual void SetHelpString(int id, const wxString& helpString);
  74   virtual wxString GetHelpString(int id) const ;
  75
  76   // find item
  77     // Finds the item id matching the given string, -1 if not found.
  78   virtual int FindItem(const wxString& itemString) const ;
  79     // Find wxMenuItem by ID, and item's menu too if itemMenu is !NULL.
  80   wxMenuItem *FindItemForId(int itemId, wxMenu **itemMenu = NULL) const;
  81
  82   void ProcessCommand(wxCommandEvent& event);
  83   inline void Callback(const wxFunction func) { m_callback = func; }
  84
  85   virtual void SetParent(wxEvtHandler *parent) { m_parent = parent; }
  86   inline void SetEventHandler(wxEvtHandler *handler) { m_eventHandler = handler; }
  87   inline wxEvtHandler *GetEventHandler() { return m_eventHandler; }
  88
  89   inline wxList& GetItems() const { return (wxList&) m_menuItems; }
  90
  91   //// Motif-specific
  92   inline WXWidget GetButtonWidget() const { return m_buttonWidget; }
  93   inline WXWidget GetMainWidget() const { return m_menuWidget; }
  94 public:
  95   wxFunction        m_callback;
  96
  97   int               m_noItems;
  98   wxString          m_title;
  99   wxMenuBar *       m_menuBar;
 100   wxList            m_menuItems;
 101   wxEvtHandler *    m_parent;
 102   wxEvtHandler *    m_eventHandler;
 103
 104   //// Motif-specific
 105   int               m_numColumns;
 106   WXWidget          m_menuWidget;
 107   WXWidget          m_popupShell;   // For holding the popup shell widget
 108   WXWidget          m_buttonWidget; // The actual string, so we can grey it etc.
 109   int               m_menuId;
 110   wxMenu*           m_topMenu ;
 111   wxMenu*           m_menuParent;
 112   bool              m_ownedByMenuBar;
 113 };
 114
 115 // ----------------------------------------------------------------------------
 116 // Menu Bar (a la Windows)
 117 // ----------------------------------------------------------------------------
 118 class WXDLLEXPORT wxFrame;
 119 class WXDLLEXPORT wxMenuBar: public wxEvtHandler
 120 {
 121   DECLARE_DYNAMIC_CLASS(wxMenuBar)
 122
 123   wxMenuBar();
 124   wxMenuBar(int n, wxMenu *menus[], const wxString titles[]);
 125   ~wxMenuBar();
 126
 127   void Append(wxMenu *menu, const wxString& title);
 128   // Must only be used AFTER menu has been attached to frame,
 129   // otherwise use individual menus to enable/disable items
 130   void Enable(int Id, bool Flag);
 131   bool Enabled(int Id) const ;
 132   inline bool IsEnabled(int Id) const { return Enabled(Id); };
 133   void EnableTop(int pos, bool Flag);
 134   void Check(int id, bool Flag);
 135   bool Checked(int id) const ;
 136   inline bool IsChecked(int Id) const { return Checked(Id); };
 137   void SetLabel(int id, const wxString& label) ;
 138   wxString GetLabel(int id) const ;
 139   void SetLabelTop(int pos, const wxString& label) ;
 140   wxString GetLabelTop(int pos) const ;
 141   virtual void Delete(wxMenu *menu, int index = 0); /* Menu not destroyed */
 142   virtual bool OnAppend(wxMenu *menu, const char *title);
 143   virtual bool OnDelete(wxMenu *menu, int index);
 144
 145   virtual void SetHelpString(int Id, const wxString& helpString);
 146   virtual wxString GetHelpString(int Id) const ;
 147
 148   virtual int FindMenuItem(const wxString& menuString, const wxString& itemString) const ;
 149
 150   // Find wxMenuItem for item ID, and return item's
 151   // menu too if itemMenu is non-NULL.
 152   wxMenuItem *FindItemForId(int itemId, wxMenu **menuForItem = NULL) const ;
 153
 154   inline void SetEventHandler(wxEvtHandler *handler) { m_eventHandler = handler; }
 155   inline wxEvtHandler *GetEventHandler() { return m_eventHandler; }
 156
 157   inline int GetMenuCount() const { return m_menuCount; }
 158   inline wxMenu* GetMenu(int i) const { return m_menus[i]; }
 159
 160  public:
 161   wxEvtHandler *            m_eventHandler;
 162   int                       m_menuCount;
 163   wxMenu **                 m_menus;
 164   wxString *                m_titles;
 165   wxFrame *                 m_menuBarFrame;
 166 /* TODO: data that represents the actual menubar when created.
 167  */
 168 };
 169
 170 #endif // _WX_MENU_H_