include/wx/msw/menu.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/msw/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
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_MENU_H_
  13 #define _WX_MENU_H_
  14
  15 #if wxUSE_ACCEL
  16     #include "wx/accel.h"
  17     #include "wx/dynarray.h"
  18
  19     WX_DEFINE_EXPORTED_ARRAY_PTR(wxAcceleratorEntry *, wxAcceleratorArray);
  20 #endif // wxUSE_ACCEL
  21
  22 class WXDLLIMPEXP_FWD_CORE wxFrame;
  23
  24 #if defined(__WXWINCE__) && wxUSE_TOOLBAR
  25 class WXDLLIMPEXP_FWD_CORE wxToolBar;
  26 #endif
  27
  28 class wxMenuRadioItemsData;
  29
  30 // Not using a combined wxToolBar/wxMenuBar? then use
  31 // a commandbar in WinCE .NET to implement the
  32 // menubar, since there is no ::SetMenu function.
  33 #if defined(__WXWINCE__)
  34 #   if ((_WIN32_WCE >= 400) && !defined(__POCKETPC__) && !defined(__SMARTPHONE__)) || \
  35         defined(__HANDHELDPC__)
  36 #       define WINCE_WITH_COMMANDBAR
  37 #   else
  38 #       define WINCE_WITHOUT_COMMANDBAR
  39 #   endif
  40 #endif
  41
  42
  43 #include "wx/arrstr.h"
  44
  45 // ----------------------------------------------------------------------------
  46 // Menu
  47 // ----------------------------------------------------------------------------
  48
  49 class WXDLLIMPEXP_CORE wxMenu : public wxMenuBase
  50 {
  51 public:
  52     // ctors & dtor
  53     wxMenu(const wxString& title, long style = 0)
  54         : wxMenuBase(title, style) { Init(); }
  55
  56     wxMenu(long style = 0) : wxMenuBase(style) { Init(); }
  57
  58     virtual ~wxMenu();
  59
  60     virtual void Break();
  61
  62     virtual void SetTitle(const wxString& title);
  63
  64     // MSW-only methods
  65     // ----------------
  66
  67     // Create a new menu from the given native HMENU. Takes ownership of the
  68     // menu handle and will delete it when this object is destroyed.
  69     static wxMenu *MSWNewFromHMENU(WXHMENU hMenu) { return new wxMenu(hMenu); }
  70
  71
  72     // implementation only from now on
  73     // -------------------------------
  74
  75     bool MSWCommand(WXUINT param, WXWORD id);
  76
  77     // get the native menu handle
  78     WXHMENU GetHMenu() const { return m_hMenu; }
  79
  80     // Return the start and end position of the radio group to which the item
  81     // at the given position belongs. Returns false if there is no radio group
  82     // containing this position.
  83     bool MSWGetRadioGroupRange(int pos, int *start, int *end) const;
  84
  85 #if wxUSE_ACCEL
  86     // called by wxMenuBar to build its accel table from the accels of all menus
  87     bool HasAccels() const { return !m_accels.empty(); }
  88     size_t GetAccelCount() const { return m_accels.size(); }
  89     size_t CopyAccels(wxAcceleratorEntry *accels) const;
  90
  91     // called by wxMenuItem when its accels changes
  92     void UpdateAccel(wxMenuItem *item);
  93
  94     // helper used by wxMenu itself (returns the index in m_accels)
  95     int FindAccel(int id) const;
  96
  97     // used only by wxMDIParentFrame currently but could be useful elsewhere:
  98     // returns a new accelerator table with accelerators for just this menu
  99     // (shouldn't be called if we don't have any accelerators)
 100     wxAcceleratorTable *CreateAccelTable() const;
 101 #endif // wxUSE_ACCEL
 102
 103 #if wxUSE_OWNER_DRAWN
 104
 105     int GetMaxAccelWidth()
 106     {
 107         if (m_maxAccelWidth == -1)
 108             CalculateMaxAccelWidth();
 109         return m_maxAccelWidth;
 110     }
 111
 112     void ResetMaxAccelWidth()
 113     {
 114         m_maxAccelWidth = -1;
 115     }
 116
 117     // get the menu with given handle (recursively)
 118     wxMenu* MSWGetMenu(WXHMENU hMenu);
 119
 120 private:
 121     void CalculateMaxAccelWidth();
 122
 123 #endif // wxUSE_OWNER_DRAWN
 124
 125 protected:
 126     virtual wxMenuItem* DoAppend(wxMenuItem *item);
 127     virtual wxMenuItem* DoInsert(size_t pos, wxMenuItem *item);
 128     virtual wxMenuItem* DoRemove(wxMenuItem *item);
 129
 130 private:
 131     // This constructor is private, use MSWNewFromHMENU() to use it.
 132     wxMenu(WXHMENU hMenu);
 133
 134     // Common part of all ctors, it doesn't create a new HMENU.
 135     void InitNoCreate();
 136
 137     // Common part of all ctors except of the one above taking a native menu
 138     // handler: calls InitNoCreate() and also creates a new menu.
 139     void Init();
 140
 141     // common part of Append/Insert (behaves as Append is pos == (size_t)-1)
 142     bool DoInsertOrAppend(wxMenuItem *item, size_t pos = (size_t)-1);
 143
 144
 145     // This variable contains the description of the radio item groups and
 146     // allows to find whether an item at the given position is part of the
 147     // group and also where its group starts and ends.
 148     //
 149     // It is initially NULL and only allocated if we have any radio items.
 150     wxMenuRadioItemsData *m_radioData;
 151
 152     // if true, insert a breal before appending the next item
 153     bool m_doBreak;
 154
 155     // the menu handle of this menu
 156     WXHMENU m_hMenu;
 157
 158 #if wxUSE_ACCEL
 159     // the accelerators for our menu items
 160     wxAcceleratorArray m_accels;
 161 #endif // wxUSE_ACCEL
 162
 163 #if wxUSE_OWNER_DRAWN
 164     // true if the menu has any ownerdrawn items
 165     bool m_ownerDrawn;
 166
 167     // the max width of menu items bitmaps
 168     int m_maxBitmapWidth;
 169
 170     // the max width of menu items accels
 171     int m_maxAccelWidth;
 172 #endif // wxUSE_OWNER_DRAWN
 173
 174     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMenu)
 175 };
 176
 177 // ----------------------------------------------------------------------------
 178 // Menu Bar (a la Windows)
 179 // ----------------------------------------------------------------------------
 180
 181 class WXDLLIMPEXP_CORE wxMenuBar : public wxMenuBarBase
 182 {
 183 public:
 184     // ctors & dtor
 185         // default constructor
 186     wxMenuBar();
 187         // unused under MSW
 188     wxMenuBar(long style);
 189         // menubar takes ownership of the menus arrays but copies the titles
 190     wxMenuBar(size_t n, wxMenu *menus[], const wxString titles[], long style = 0);
 191     virtual ~wxMenuBar();
 192
 193     // menubar construction
 194     virtual bool Append( wxMenu *menu, const wxString &title );
 195     virtual bool Insert(size_t pos, wxMenu *menu, const wxString& title);
 196     virtual wxMenu *Replace(size_t pos, wxMenu *menu, const wxString& title);
 197     virtual wxMenu *Remove(size_t pos);
 198
 199     virtual void EnableTop( size_t pos, bool flag );
 200     virtual void SetMenuLabel( size_t pos, const wxString& label );
 201     virtual wxString GetMenuLabel( size_t pos ) const;
 202
 203     // implementation from now on
 204     WXHMENU Create();
 205     virtual void Detach();
 206     virtual void Attach(wxFrame *frame);
 207
 208 #if defined(__WXWINCE__) && wxUSE_TOOLBAR
 209     // Under WinCE, a menubar is owned by the frame's toolbar
 210     void SetToolBar(wxToolBar* toolBar) { m_toolBar = toolBar; }
 211     wxToolBar* GetToolBar() const { return m_toolBar; }
 212 #endif
 213
 214 #ifdef WINCE_WITH_COMMANDBAR
 215     WXHWND GetCommandBar() const { return m_commandBar; }
 216     bool AddAdornments(long style);
 217 #endif
 218
 219 #if wxUSE_ACCEL
 220     // update the accel table (must be called after adding/deleting a menu)
 221     void RebuildAccelTable();
 222 #endif // wxUSE_ACCEL
 223
 224         // get the menu handle
 225     WXHMENU GetHMenu() const { return m_hMenu; }
 226
 227     // if the menubar is modified, the display is not updated automatically,
 228     // call this function to update it (m_menuBarFrame should be !NULL)
 229     void Refresh();
 230
 231     // To avoid compile warning
 232     void Refresh( bool eraseBackground,
 233                           const wxRect *rect = (const wxRect *) NULL ) { wxWindow::Refresh(eraseBackground, rect); }
 234
 235     // get the menu with given handle (recursively)
 236     wxMenu* MSWGetMenu(WXHMENU hMenu);
 237
 238 protected:
 239     // common part of all ctors
 240     void Init();
 241
 242     WXHMENU       m_hMenu;
 243
 244     // Return the MSW position for a wxMenu which is sometimes different from
 245     // the wxWidgets position.
 246     int MSWPositionForWxMenu(wxMenu *menu, int wxpos);
 247
 248 #if defined(__WXWINCE__) && wxUSE_TOOLBAR
 249     wxToolBar*  m_toolBar;
 250 #endif
 251
 252 #ifdef WINCE_WITH_COMMANDBAR
 253     WXHWND      m_commandBar;
 254     bool        m_adornmentsAdded;
 255 #endif
 256
 257 private:
 258     DECLARE_DYNAMIC_CLASS_NO_COPY(wxMenuBar)
 259 };
 260
 261 #endif // _WX_MENU_H_