1 /* 2 * Copyright 2006-2016 Haiku, Inc. All rights reserved. 3 * Distributed under the terms of the MIT License. 4 */ 5 #ifndef _MENU_FIELD_H 6 #define _MENU_FIELD_H 7 8 9 #include <Menu.h> 10 11 12 class BMenuBar; 13 class BMessageFilter; 14 15 16 class BMenuField : public BView { 17 public: 18 BMenuField(BRect frame, const char* name, 19 const char* label, BMenu* menu, 20 uint32 resizingMode = B_FOLLOW_LEFT_TOP, 21 uint32 flags = B_WILL_DRAW | B_NAVIGABLE); 22 BMenuField(BRect frame, const char* name, 23 const char* label, BMenu* menu, 24 bool fixed_size, 25 uint32 resizingMode = B_FOLLOW_LEFT_TOP, 26 uint32 flags = B_WILL_DRAW | B_NAVIGABLE); 27 BMenuField(const char* name, 28 const char* label, BMenu* menu, 29 uint32 flags = B_WILL_DRAW | B_NAVIGABLE); 30 BMenuField(const char* label, BMenu* menu, 31 uint32 flags = B_WILL_DRAW | B_NAVIGABLE); 32 BMenuField(BMessage* data); 33 virtual ~BMenuField(); 34 35 static BArchivable* Instantiate(BMessage* archive); 36 virtual status_t Archive(BMessage* archive, 37 bool deep = true) const; 38 39 virtual void Draw(BRect updateRect); 40 virtual void AttachedToWindow(); 41 virtual void AllAttached(); 42 virtual void MouseDown(BPoint where); 43 virtual void KeyDown(const char* bytes, int32 numBytes); 44 virtual void MakeFocus(bool focused); 45 virtual void MessageReceived(BMessage* message); 46 virtual void WindowActivated(bool active); 47 virtual void MouseUp(BPoint where); 48 virtual void MouseMoved(BPoint where, uint32 transit, 49 const BMessage* dragMessage); 50 virtual void DetachedFromWindow(); 51 virtual void AllDetached(); 52 virtual void FrameMoved(BPoint where); 53 virtual void FrameResized(float width, float height); 54 55 BMenu* Menu() const; 56 BMenuBar* MenuBar() const; 57 BMenuItem* MenuItem() const; 58 59 virtual void SetLabel(const char* label); 60 const char* Label() const; 61 62 virtual void SetEnabled(bool on); 63 bool IsEnabled() const; 64 65 virtual void SetAlignment(alignment label); 66 alignment Alignment() const; 67 virtual void SetDivider(float position); 68 float Divider() const; 69 70 void ShowPopUpMarker(); 71 void HidePopUpMarker(); 72 73 virtual BHandler* ResolveSpecifier(BMessage* message, 74 int32 index, BMessage* specifier, 75 int32 form, const char* property); 76 virtual status_t GetSupportedSuites(BMessage* data); 77 78 virtual void ResizeToPreferred(); 79 virtual void GetPreferredSize(float* width, float* height); 80 81 virtual BSize MinSize(); 82 virtual BSize MaxSize(); 83 virtual BSize PreferredSize(); 84 85 BLayoutItem* CreateLabelLayoutItem(); 86 BLayoutItem* CreateMenuBarLayoutItem(); 87 88 virtual status_t Perform(perform_code d, void* arg); 89 90 protected: 91 virtual status_t AllArchived(BMessage* into) const; 92 virtual status_t AllUnarchived(const BMessage* from); 93 94 virtual void LayoutInvalidated(bool descendants); 95 virtual void DoLayout(); 96 97 private: 98 // FBC padding 99 virtual void _ReservedMenuField1(); 100 virtual void _ReservedMenuField2(); 101 virtual void _ReservedMenuField3(); 102 103 // Forbidden 104 BMenuField& operator=(const BMenuField& other); 105 106 private: 107 class LabelLayoutItem; 108 class MenuBarLayoutItem; 109 struct LayoutData; 110 111 friend class _BMCMenuBar_; 112 friend class LabelLayoutItem; 113 friend class MenuBarLayoutItem; 114 friend struct LayoutData; 115 116 BMenuField(const char* name, 117 const char* label, BMenu* menu, 118 BMessage* message, 119 uint32 flags); 120 BMenuField(const char* label, 121 BMenu* menu, BMessage* message); 122 123 void _DrawLabel(BRect updateRect); 124 void _DrawMenuBar(BRect updateRect); 125 126 void InitObject(const char* label); 127 void InitObject2(); 128 129 static void InitMenu(BMenu* menu); 130 131 int32 _MenuTask(); 132 static int32 _thread_entry(void *arg); 133 134 void _UpdateFrame(); 135 void _InitMenuBar(BMenu* menu, 136 BRect frame, bool fixedSize); 137 void _InitMenuBar(const BMessage* archive); 138 void _AddMenu(BMenu* menu); 139 140 void _ValidateLayoutData(); 141 float _MenuBarOffset() const; 142 float _MenuBarWidth() const; 143 144 void _DoneTracking(BPoint point); 145 void _Track(BPoint point, uint32); 146 147 private: 148 char* fLabel; 149 BMenu* fMenu; 150 BMenuBar* fMenuBar; 151 alignment fAlign; 152 float fDivider; 153 bool fEnabled; 154 bool fFixedSizeMB; 155 thread_id fMenuTaskID; 156 157 LayoutData* fLayoutData; 158 BMessageFilter* fMouseDownFilter; 159 160 uint32 _reserved[2]; 161 }; 162 163 164 #endif // _MENU_FIELD_H 165