1 /******************************************************************************* 2 / 3 / File: MenuItem.h 4 / 5 / Description: BMenuItem represents a single item in a BMenu. 6 / BSeparatorItem is a cosmetic menu item that demarcates 7 / groups of other items. 8 / 9 / Copyright 1994-98, Be Incorporated, All Rights Reserved 10 / 11 *******************************************************************************/ 12 13 #ifndef _MENU_ITEM_H 14 #define _MENU_ITEM_H 15 16 #include <BeBuild.h> 17 #include <InterfaceDefs.h> 18 #include <Archivable.h> 19 #include <Invoker.h> 20 #include <Menu.h> /* For convenience */ 21 22 class BMessage; 23 class BWindow; 24 25 /*----------------------------------------------------------------*/ 26 /*----- BMenuItem class ------------------------------------------*/ 27 28 class BMenuItem : public BArchivable, public BInvoker { 29 public: 30 BMenuItem( const char *label, 31 BMessage *message, 32 char shortcut = 0, 33 uint32 modifiers = 0); 34 BMenuItem(BMenu *menu, BMessage *message = NULL); 35 BMenuItem(BMessage *data); 36 virtual ~BMenuItem(); 37 static BArchivable *Instantiate(BMessage *data); 38 virtual status_t Archive(BMessage *data, bool deep = true) const; 39 40 virtual void SetLabel(const char *name); 41 virtual void SetEnabled(bool state); 42 virtual void SetMarked(bool state); 43 virtual void SetTrigger(char ch); 44 virtual void SetShortcut(char ch, uint32 modifiers); 45 46 const char *Label() const; 47 bool IsEnabled() const; 48 bool IsMarked() const; 49 char Trigger() const; 50 char Shortcut(uint32 *modifiers = NULL) const; 51 52 BMenu *Submenu() const; 53 BMenu *Menu() const; 54 BRect Frame() const; 55 56 protected: 57 58 virtual void GetContentSize(float *width, float *height); 59 virtual void TruncateLabel(float max, char *new_label); 60 virtual void DrawContent(); 61 virtual void Draw(); 62 virtual void Highlight(bool on); 63 bool IsSelected() const; 64 BPoint ContentLocation() const; 65 66 /*----- Private or reserved -----------------------------------------*/ 67 private: 68 friend class BMenu; 69 friend class BPopUpMenu; 70 friend class BMenuBar; 71 72 virtual void _ReservedMenuItem1(); 73 virtual void _ReservedMenuItem2(); 74 virtual void _ReservedMenuItem3(); 75 virtual void _ReservedMenuItem4(); 76 77 BMenuItem(const BMenuItem &); 78 BMenuItem &operator=(const BMenuItem &); 79 80 void InitData(); 81 void InitMenuData(BMenu *menu); 82 void Install(BWindow *window); 83 84 /*----- Protected function -----------------------------------------*/ 85 protected: 86 virtual status_t Invoke(BMessage *msg = NULL); 87 88 /*----- Private or reserved -----------------------------------------*/ 89 private: 90 void Uninstall(); 91 void SetSuper(BMenu *super); 92 void Select(bool on); 93 void DrawMarkSymbol(); 94 void DrawShortcutSymbol(); 95 void DrawSubmenuSymbol(); 96 void DrawControlChar(const char *control); 97 void SetSysTrigger(char ch); 98 99 char *fLabel; 100 BMenu *fSubmenu; 101 BWindow *fWindow; 102 BMenu *fSuper; 103 BRect fBounds; 104 uint32 fModifiers; 105 float fCachedWidth; 106 int16 fTriggerIndex; 107 char fUserTrigger; 108 char fSysTrigger; 109 char fShortcutChar; 110 bool fMark; 111 bool fEnabled; 112 bool fSelected; 113 114 uint32 _reserved[4]; 115 }; 116 117 /*-------------------------------------------------------------*/ 118 /*-------------------------------------------------------------*/ 119 120 // We moved BSeparatorItem's declaration to its own file, but for source 121 // compatibility we have to export that class from here too. 122 #include <SeparatorItem.h> 123 124 #endif /* _MENU_ITEM_H */ 125