1 /* 2 * Copyright 2006-2007, Haiku, Inc. All rights reserved. 3 * Distributed under the terms of the MIT License. 4 */ 5 #ifndef _MENU_ITEM_H 6 #define _MENU_ITEM_H 7 8 9 #include <Archivable.h> 10 #include <InterfaceDefs.h> 11 #include <Invoker.h> 12 #include <Menu.h> 13 14 15 class BMessage; 16 class BWindow; 17 18 namespace BPrivate { 19 class MenuItemPrivate; 20 } 21 22 class BMenuItem : public BArchivable, public BInvoker { 23 public: 24 BMenuItem(const char* label, BMessage* message, 25 char shortcut = 0, uint32 modifiers = 0); 26 BMenuItem(BMenu* menu, 27 BMessage* message = NULL); 28 BMenuItem(BMessage* data); 29 virtual ~BMenuItem(); 30 31 static BArchivable* Instantiate(BMessage* archive); 32 virtual status_t Archive(BMessage* archive, 33 bool deep = true) const; 34 35 virtual void SetLabel(const char* name); 36 virtual void SetEnabled(bool enable); 37 virtual void SetMarked(bool mark); 38 virtual void SetTrigger(char trigger); 39 virtual void SetShortcut(char shortcut, uint32 modifiers); 40 41 const char* Label() const; 42 bool IsEnabled() const; 43 bool IsMarked() const; 44 char Trigger() const; 45 char Shortcut(uint32* _modifiers = NULL) const; 46 47 BMenu* Submenu() const; 48 BMenu* Menu() const; 49 BRect Frame() const; 50 51 protected: 52 virtual void GetContentSize(float* _width, float* _height); 53 virtual void TruncateLabel(float maxWidth, char* newLabel); 54 virtual void DrawContent(); 55 virtual void Draw(); 56 virtual void Highlight(bool highlight); 57 bool IsSelected() const; 58 BPoint ContentLocation() const; 59 60 private: 61 friend class BMenu; 62 friend class BPopUpMenu; 63 friend class BMenuBar; 64 friend class BPrivate::MenuItemPrivate; 65 66 virtual void _ReservedMenuItem1(); 67 virtual void _ReservedMenuItem2(); 68 virtual void _ReservedMenuItem3(); 69 virtual void _ReservedMenuItem4(); 70 71 void Install(BWindow* window); 72 void Uninstall(); 73 void SetSuper(BMenu* superMenu); 74 void Select(bool select); 75 void SetAutomaticTrigger(int32 index, 76 uint32 trigger); 77 78 protected: 79 virtual status_t Invoke(BMessage* message = NULL); 80 81 private: 82 BMenuItem(const BMenuItem& other); 83 BMenuItem& operator=(const BMenuItem& other); 84 85 private: 86 void _InitData(); 87 void _InitMenuData(BMenu* menu); 88 89 bool _IsActivated(); 90 rgb_color _LowColor(); 91 rgb_color _HighColor(); 92 93 void _DrawMarkSymbol(); 94 void _DrawShortcutSymbol(bool); 95 void _DrawSubmenuSymbol(); 96 void _DrawControlChar(char shortcut, BPoint where); 97 98 private: 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 fShortcutChar; 109 bool fMark; 110 bool fEnabled; 111 bool fSelected; 112 uint32 fTrigger; 113 114 uint32 _reserved[3]; 115 }; 116 117 // BSeparatorItem now has its own declaration file, but for source 118 // compatibility we're exporting that class from here too. 119 #include <SeparatorItem.h> 120 121 #endif // _MENU_ITEM_H 122