src/cocoa/menu.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/cocoa/menu.cpp
   3 // Purpose:     wxMenu and wxMenuBar implementation
   4 // Author:      David Elliott
   5 // Modified by:
   6 // Created:     2002/12/09
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2002 David Elliott
   9 // Licence:     wxWidgets licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #include "wx/wxprec.h"
  21
  22 #include "wx/menu.h"
  23
  24 #ifndef WX_PRECOMP
  25     #include "wx/log.h"
  26 #endif // WX_PRECOMP
  27
  28 #include "wx/cocoa/autorelease.h"
  29 #include "wx/cocoa/string.h"
  30
  31 #import <Foundation/NSString.h>
  32 #include "wx/cocoa/objc/NSMenu.h"
  33
  34 #if wxUSE_MENUS
  35
  36 // ----------------------------------------------------------------------------
  37 // globals
  38 // ----------------------------------------------------------------------------
  39
  40 // ============================================================================
  41 // wxMenu implementation
  42 // ============================================================================
  43
  44 IMPLEMENT_DYNAMIC_CLASS(wxMenu,wxEvtHandler)
  45
  46 bool wxMenu::Create(const wxString& title, long style)
  47 {
  48     wxAutoNSAutoreleasePool pool;
  49     m_cocoaNSMenu = [[WXNSMenu alloc] initWithTitle: wxNSStringWithWxString(title)];
  50     AssociateNSMenu(m_cocoaNSMenu);
  51     return true;
  52 }
  53
  54 wxMenu::~wxMenu()
  55 {
  56     DisassociateNSMenu(m_cocoaNSMenu);
  57     if(!m_cocoaDeletes)
  58         [m_cocoaNSMenu release];
  59 }
  60
  61 wxMenuItem* wxMenu::DoAppend(wxMenuItem *item)
  62 {
  63     wxAutoNSAutoreleasePool pool;
  64     if(!wxMenuBase::DoAppend(item))
  65         return NULL;
  66     [m_cocoaNSMenu addItem: item->GetNSMenuItem()];
  67     return item;
  68 }
  69
  70 wxMenuItem* wxMenu::DoInsert(unsigned long pos, wxMenuItem *item)
  71 {
  72     wxAutoNSAutoreleasePool pool;
  73     if(!wxMenuBase::DoInsert(pos,item))
  74         return NULL;
  75     [m_cocoaNSMenu insertItem:item->GetNSMenuItem() atIndex:pos];
  76     return item;
  77 }
  78
  79 wxMenuItem* wxMenu::DoRemove(wxMenuItem *item)
  80 {
  81     wxAutoNSAutoreleasePool pool;
  82     wxMenuItem *retitem = wxMenuBase::DoRemove(item);
  83     wxASSERT(retitem->GetNSMenuItem());
  84     [m_cocoaNSMenu removeItem:retitem->GetNSMenuItem()];
  85     return retitem;
  86 }
  87
  88 // This autoreleases the menu on the assumption that something is
  89 // going to retain it shortly (for instance, it is going to be returned from
  90 // an overloaded [NSStatusItem menu] or from the applicationDockMenu:
  91 // NSApplication delegate method.
  92 //
  93 // It then sets a bool flag m_cocoaDeletes.  When the NSMenu is dealloc'd
  94 // (dealloc is the Cocoa destructor) we delete ourselves.  In this manner we
  95 // can be available for Cocoa calls until Cocoa is finished with us.
  96 //
  97 // I can see very few reasons to undo this.  Nevertheless, it is implemented.
  98 void wxMenu::SetCocoaDeletes(bool cocoaDeletes)
  99 {
 100     if(m_cocoaDeletes==cocoaDeletes)
 101         return;
 102     m_cocoaDeletes = cocoaDeletes;
 103     if(m_cocoaDeletes)
 104         [m_cocoaNSMenu autorelease];
 105     else
 106         [m_cocoaNSMenu retain];
 107 }
 108
 109 void wxMenu::Cocoa_dealloc()
 110 {
 111     if(m_cocoaDeletes)
 112         delete this;
 113 }
 114
 115 // ============================================================================
 116 // wxMenuBar implementation
 117 // ============================================================================
 118 IMPLEMENT_DYNAMIC_CLASS(wxMenuBar,wxWindow)
 119
 120 bool wxMenuBar::Create(long style)
 121 {
 122     wxAutoNSAutoreleasePool pool;
 123     m_cocoaNSMenu = [[NSMenu alloc] initWithTitle: @"wxMenuBar"];
 124
 125     NSMenuItem *dummyItem = [[NSMenuItem alloc] initWithTitle:@"App menu"
 126         /* Note: title gets clobbered by app name anyway */
 127         action:nil keyEquivalent:@""];
 128     [m_cocoaNSMenu addItem:dummyItem];
 129     [dummyItem release];
 130     return true;
 131 }
 132
 133 wxMenuBar::wxMenuBar(size_t n,
 134                      wxMenu *menus[],
 135                      const wxString titles[],
 136                      long style)
 137 {
 138     Create(style);
 139
 140     for ( size_t i = 0; i < n; ++i )
 141         Append(menus[i], titles[i]);
 142 }
 143
 144 wxMenuBar::~wxMenuBar()
 145 {
 146     [m_cocoaNSMenu release];
 147 }
 148
 149 bool wxMenuBar::Append( wxMenu *menu, const wxString &title )
 150 {
 151     wxAutoNSAutoreleasePool pool;
 152     wxLogTrace(wxTRACE_COCOA,wxT("append menu=%p, title=%s"),menu,title.c_str());
 153     if(!wxMenuBarBase::Append(menu,title))
 154         return false;
 155     wxASSERT(menu);
 156     wxASSERT(menu->GetNSMenu());
 157     NSString *menuTitle = wxInitNSStringWithWxString([NSString alloc], wxStripMenuCodes(title));
 158     NSMenuItem *newItem = [[NSMenuItem alloc] initWithTitle:menuTitle action:NULL keyEquivalent:@""];
 159     [menu->GetNSMenu() setTitle:menuTitle];
 160     [newItem setSubmenu:menu->GetNSMenu()];
 161
 162     [m_cocoaNSMenu addItem:newItem];
 163
 164     [menuTitle release];
 165     [newItem release];
 166     return true;
 167 }
 168
 169 bool wxMenuBar::Insert(size_t pos, wxMenu *menu, const wxString& title)
 170 {
 171     wxAutoNSAutoreleasePool pool;
 172     wxLogTrace(wxTRACE_COCOA,wxT("insert pos=%lu, menu=%p, title=%s"),pos,menu,title.c_str());
 173     // Get the current menu at this position
 174     wxMenu *nextmenu = GetMenu(pos);
 175     if(!wxMenuBarBase::Insert(pos,menu,title))
 176         return false;
 177     wxASSERT(menu);
 178     wxASSERT(menu->GetNSMenu());
 179     NSString *menuTitle = wxInitNSStringWithWxString([NSString alloc], title);
 180     NSMenuItem *newItem = [[NSMenuItem alloc] initWithTitle:menuTitle action:NULL keyEquivalent:@""];
 181     [menu->GetNSMenu() setTitle:menuTitle];
 182     [newItem setSubmenu:menu->GetNSMenu()];
 183
 184     int itemindex = [m_cocoaNSMenu indexOfItemWithSubmenu:nextmenu->GetNSMenu()];
 185     wxASSERT(itemindex>=0);
 186     [m_cocoaNSMenu insertItem:newItem atIndex:itemindex];
 187
 188     [menuTitle release];
 189     [newItem release];
 190     return true;
 191 }
 192
 193 wxMenu *wxMenuBar::Replace(size_t pos, wxMenu *menu, const wxString& title)
 194 {
 195     return NULL;
 196 }
 197
 198 wxMenu *wxMenuBar::Remove(size_t pos)
 199 {
 200     wxMenu *menu = wxMenuBarBase::Remove(pos);
 201     wxASSERT(menu);
 202     int itemindex = [GetNSMenu() indexOfItemWithSubmenu:menu->GetNSMenu()];
 203     wxASSERT(itemindex>=0);
 204     [m_cocoaNSMenu removeItemAtIndex:itemindex];
 205     return menu;
 206 }
 207
 208
 209 void wxMenuBar::EnableTop(size_t pos, bool enable)
 210 {
 211 }
 212
 213 bool wxMenuBar::IsEnabledTop(size_t pos) const
 214 {
 215     return false;
 216 }
 217
 218 void wxMenuBar::SetLabelTop(size_t pos, const wxString& label)
 219 {
 220 }
 221
 222 wxString wxMenuBar::GetLabelTop(size_t pos) const
 223 {
 224     wxMenu *menu = GetMenu(pos);
 225     int itemindex = [m_cocoaNSMenu indexOfItemWithSubmenu:menu->GetNSMenu()];
 226     wxASSERT(itemindex>=0);
 227     return wxStringWithNSString([[m_cocoaNSMenu itemAtIndex:itemindex] title]);
 228 }
 229
 230 void wxMenuBar::Attach(wxFrame *frame)
 231 {
 232     wxMenuBarBase::Attach(frame);
 233 }
 234
 235 void wxMenuBar::Detach()
 236 {
 237     wxMenuBarBase::Detach();
 238 }
 239
 240 wxSize wxMenuBar::DoGetBestClientSize() const
 241 {
 242     return wxDefaultSize;
 243 }
 244
 245 #endif // wxUSE_MENUS