include/wx/msw/menu.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        menu.h
   3 // Purpose:     wxMenu, wxMenuBar classes
   4 // Author:      Julian Smart
   5 // Modified by: Vadim Zeitlin (wxMenuItem is now in separate file)
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  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); /* If it's a submenu, menu is not destroyed. VZ: why? */
  56
  57   // Client data
  58   inline void SetClientData(void* clientData) { m_clientData = clientData; }
  59   inline void* GetClientData() const { return m_clientData; }
  60
  61   // menu item control
  62   void Enable(int id, bool Flag);
  63   bool Enabled(int id) const;
  64   inline bool IsEnabled(int id) const { return Enabled(id); };
  65   void Check(int id, bool Flag);
  66   bool Checked(int id) const;
  67   inline bool IsChecked(int id) const { return Checked(id); };
  68
  69   // item properties
  70     // title
  71   void SetTitle(const wxString& label);
  72   const wxString GetTitle() const;
  73     // label
  74   void SetLabel(int id, const wxString& label);
  75   wxString GetLabel(int id) const;
  76     // help string
  77   virtual void SetHelpString(int id, const wxString& helpString);
  78   virtual wxString GetHelpString(int id) const ;
  79
  80   // find item
  81     // Finds the item id matching the given string, NOT_FOUND if not found.
  82   virtual int FindItem(const wxString& itemString) const ;
  83     // Find wxMenuItem by ID, and item's menu too if itemMenu is !NULL.
  84   wxMenuItem *FindItemForId(int itemId, wxMenu **itemMenu = NULL) const;
  85
  86   void ProcessCommand(wxCommandEvent& event);
  87   inline void Callback(const wxFunction func) { m_callback = func; }
  88
  89   virtual void SetParent(wxEvtHandler *parent) { m_parent = parent; }
  90   inline void SetEventHandler(wxEvtHandler *handler) { m_eventHandler = handler; }
  91   inline wxEvtHandler *GetEventHandler() { return m_eventHandler; }
  92
  93   inline wxList& GetItems() const { return (wxList&) m_menuItems; }
  94
  95   // IMPLEMENTATION
  96   bool MSWCommand(WXUINT param, WXWORD id);
  97
  98   void      SetInvokingWindow(wxWindow *pWin) { m_pInvokingWindow = pWin; }
  99   wxWindow *GetInvokingWindow()         const { return m_pInvokingWindow; }
 100
 101   // semi-private accessors
 102     // get the window which contains this menu
 103   wxWindow *GetWindow() const;
 104     // get the menu handle
 105   WXHMENU GetHMenu() const;
 106
 107 private:
 108   bool              m_doBreak ;
 109
 110 public:
 111   // This is used when m_hMenu is NULL because we don't want to
 112   // delete it in ~wxMenu (it's been added to a parent menu).
 113   // But we'll still need the handle for other purposes.
 114   // Might be better to have a flag saying whether it's deleteable or not.
 115   WXHMENU           m_savehMenu ; // Used for Enable() on popup
 116   WXHMENU           m_hMenu;
 117   wxFunction        m_callback;
 118
 119   int               m_noItems;
 120   wxString          m_title;
 121   wxMenu *          m_topLevelMenu;
 122   wxMenuBar *       m_menuBar;
 123   wxList            m_menuItems;
 124   wxEvtHandler *    m_parent;
 125   wxEvtHandler *    m_eventHandler;
 126   wxWindow         *m_pInvokingWindow;
 127   void*             m_clientData;
 128 };
 129
 130 // ----------------------------------------------------------------------------
 131 // Menu Bar (a la Windows)
 132 // ----------------------------------------------------------------------------
 133 class WXDLLEXPORT wxFrame;
 134 class WXDLLEXPORT wxMenuBar: public wxEvtHandler
 135 {
 136   DECLARE_DYNAMIC_CLASS(wxMenuBar)
 137
 138 public:
 139   wxMenuBar();
 140   wxMenuBar(int n, wxMenu *menus[], const wxString titles[]);
 141   ~wxMenuBar();
 142
 143   void Append(wxMenu *menu, const wxString& title);
 144   // Must only be used AFTER menu has been attached to frame,
 145   // otherwise use individual menus to enable/disable items
 146   void Enable(int Id, bool Flag);
 147   bool Enabled(int Id) const ;
 148   inline bool IsEnabled(int Id) const { return Enabled(Id); };
 149   void EnableTop(int pos, bool Flag);
 150   void Check(int id, bool Flag);
 151   bool Checked(int id) const ;
 152   inline bool IsChecked(int Id) const { return Checked(Id); };
 153   void SetLabel(int id, const wxString& label) ;
 154   wxString GetLabel(int id) const ;
 155   void SetLabelTop(int pos, const wxString& label) ;
 156   wxString GetLabelTop(int pos) const ;
 157   virtual void Delete(wxMenu *menu, int index = 0); /* Menu not destroyed */
 158   virtual bool OnAppend(wxMenu *menu, const char *title);
 159   virtual bool OnDelete(wxMenu *menu, int index);
 160
 161   virtual void SetHelpString(int Id, const wxString& helpString);
 162   virtual wxString GetHelpString(int Id) const ;
 163
 164   virtual int FindMenuItem(const wxString& menuString, const wxString& itemString) const ;
 165
 166   // Find wxMenuItem for item ID, and return item's
 167   // menu too if itemMenu is non-NULL.
 168   wxMenuItem *FindItemForId(int itemId, wxMenu **menuForItem = NULL) const ;
 169
 170   inline void SetEventHandler(wxEvtHandler *handler) { m_eventHandler = handler; }
 171   inline wxEvtHandler *GetEventHandler() { return m_eventHandler; }
 172
 173   inline int GetMenuCount() const { return m_menuCount; }
 174   inline wxMenu* GetMenu(int i) const { return m_menus[i]; }
 175
 176  public:
 177   wxEvtHandler *            m_eventHandler;
 178   int                       m_menuCount;
 179   wxMenu **                 m_menus;
 180   wxString *                m_titles;
 181   wxFrame *                 m_menuBarFrame;
 182   WXHMENU                   m_hMenu;
 183 };
 184
 185 #endif // _WX_MENU_H_