include/wx/cocoa/menu.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/cocoa/menu.h
   3 // Purpose:     wxMenu and wxMenuBar classes
   4 // Author:      David Elliott
   5 // Modified by:
   6 // Created:     2002/12/09
   7 // RCS-ID:      $Id:
   8 // Copyright:   (c) 2002 David Elliott
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef __WX_COCOA_MENU_H__
  13 #define __WX_COCOA_MENU_H__
  14
  15 #include "wx/cocoa/NSMenu.h"
  16
  17 #if wxUSE_ACCEL
  18     #include "wx/accel.h"
  19 #endif // wxUSE_ACCEL
  20
  21 // ========================================================================
  22 // wxMenu
  23 // ========================================================================
  24
  25 class WXDLLEXPORT wxMenu : public wxMenuBase, public wxCocoaNSMenu
  26 {
  27 public:
  28     // ctors and dtor
  29     wxMenu(const wxString& title, long style = 0)
  30     :   wxMenuBase(title, style)
  31     ,   m_cocoaDeletes(false)
  32     {   Create(title,style); }
  33     bool Create(const wxString& title, long style = 0);
  34
  35     wxMenu(long style = 0) : wxMenuBase(style) { Create(wxEmptyString, style); }
  36
  37     virtual ~wxMenu();
  38
  39 // ------------------------------------------------------------------------
  40 // Cocoa specifics
  41 // ------------------------------------------------------------------------
  42 public:
  43     inline WX_NSMenu GetNSMenu() { return m_cocoaNSMenu; }
  44     void SetCocoaDeletes(bool cocoaDeletes);
  45     virtual void Cocoa_dealloc();
  46 protected:
  47     WX_NSMenu m_cocoaNSMenu;
  48     bool m_cocoaDeletes;
  49 // ------------------------------------------------------------------------
  50 // Implementation
  51 // ------------------------------------------------------------------------
  52 protected:
  53     // implement base class virtuals
  54     virtual wxMenuItem* DoAppend(wxMenuItem *item);
  55     virtual wxMenuItem* DoInsert(size_t pos, wxMenuItem *item);
  56     virtual wxMenuItem* DoRemove(wxMenuItem *item);
  57
  58 #if wxUSE_ACCEL
  59     // add/remove accel for the given menu item
  60     void AddAccelFor(wxMenuItem *item);
  61     void RemoveAccelFor(wxMenuItem *item);
  62 #endif // wxUSE_ACCEL
  63
  64 private:
  65 #if wxUSE_ACCEL
  66     // the accel table for this menu
  67     wxAcceleratorTable m_accelTable;
  68 #endif // wxUSE_ACCEL
  69
  70     DECLARE_DYNAMIC_CLASS(wxMenu)
  71 };
  72
  73 // ========================================================================
  74 // wxMenuBar
  75 // ========================================================================
  76 class WXDLLEXPORT wxMenuBar : public wxMenuBarBase
  77 {
  78 public:
  79     // ctors and dtor
  80     wxMenuBar(long style = 0) { Create(style); }
  81     wxMenuBar(size_t n, wxMenu *menus[], const wxString titles[], long style = 0);
  82     bool Create(long style = 0);
  83     virtual ~wxMenuBar();
  84
  85 // ------------------------------------------------------------------------
  86 // Cocoa specifics
  87 // ------------------------------------------------------------------------
  88 public:
  89     inline WX_NSMenu GetNSMenu() { return m_cocoaNSMenu; }
  90 protected:
  91     WX_NSMenu m_cocoaNSMenu;
  92 // ------------------------------------------------------------------------
  93 // Implementation
  94 // ------------------------------------------------------------------------
  95 public:
  96     // implement base class virtuals
  97     virtual bool Append(wxMenu *menu, const wxString &title);
  98     virtual bool Insert(size_t pos, wxMenu *menu, const wxString& title);
  99     virtual wxMenu *Replace(size_t pos, wxMenu *menu, const wxString& title);
 100     virtual wxMenu *Remove(size_t pos);
 101
 102     virtual void EnableTop(size_t pos, bool enable);
 103     virtual bool IsEnabledTop(size_t pos) const;
 104
 105     virtual void SetMenuLabel(size_t pos, const wxString& label);
 106     virtual wxString GetMenuLabel(size_t pos) const;
 107
 108     virtual void Attach(wxFrame *frame);
 109     virtual void Detach();
 110
 111     // get the next item for the givan accel letter (used by wxFrame), return
 112     // -1 if none
 113     //
 114     // if unique is not NULL, filled with TRUE if there is only one item with
 115     // this accel, FALSE if two or more
 116     int FindNextItemForAccel(int idxStart,
 117                              int keycode,
 118                              bool *unique = NULL) const;
 119
 120     // called by wxFrame to set focus to or open the given menu
 121     void SelectMenu(size_t pos);
 122
 123 #if wxUSE_ACCEL
 124     // find the item for the given accel and generate an event if found
 125     bool ProcessAccelEvent(const wxKeyEvent& event);
 126 #endif // wxUSE_ACCEL
 127
 128 protected:
 129     // event handlers
 130     void OnLeftDown(wxMouseEvent& event);
 131     void OnMouseMove(wxMouseEvent& event);
 132     void OnKeyDown(wxKeyEvent& event);
 133     void OnKillFocus(wxFocusEvent& event);
 134
 135     // process the mouse move event, return TRUE if we did, FALSE to continue
 136     // processing as usual
 137     //
 138     // the coordinates are client coordinates of menubar, convert if necessary
 139     bool ProcessMouseEvent(const wxPoint& pt);
 140
 141     // menubar geometry
 142     virtual wxSize DoGetBestClientSize() const;
 143
 144     // has the menubar been created already?
 145     bool IsCreated() const { return m_frameLast != NULL; }
 146
 147     // get the (total) width of the specified menu
 148     wxCoord GetItemWidth(size_t pos) const;
 149
 150     // get the rect of the item
 151     wxRect GetItemRect(size_t pos) const;
 152
 153     // get the menu from the given point or -1 if none
 154     int GetMenuFromPoint(const wxPoint& pos) const;
 155
 156     // refresh the given item
 157     void RefreshItem(size_t pos);
 158
 159     // refresh all items after this one (including it)
 160     void RefreshAllItemsAfter(size_t pos);
 161
 162     // do we show a menu currently?
 163     bool IsShowingMenu() const { return m_menuShown != 0; }
 164
 165     // we don't want to have focus except while selecting from menu
 166     void GiveAwayFocus();
 167
 168     // the current item (only used when menubar has focus)
 169     int m_current;
 170
 171 private:
 172     // the last frame to which we were attached, NULL initially
 173     wxFrame *m_frameLast;
 174
 175     // the currently shown menu or NULL
 176     wxMenu *m_menuShown;
 177
 178     // should be showing the menu? this is subtly different from m_menuShown !=
 179     // NULL as the menu which should be shown may be disabled in which case we
 180     // don't show it - but will do as soon as the focus shifts to another menu
 181     bool m_shouldShowMenu;
 182
 183     DECLARE_DYNAMIC_CLASS(wxMenuBar)
 184 };
 185
 186 #endif // _WX_COCOA_MENU_H_