create stock GDI objects on demand; use const with GDI objects appropriately (patch...

[wxWidgets.git] / src / mac / carbon / taskbar.cpp

diff --git a/src/mac/carbon/taskbar.cpp b/src/mac/carbon/taskbar.cpp
index 523bd6252466476fe73b9bdb56554b21954f9737..5fea2b7552e73e3db85f9df4a241d32a0235cb7f 100644 (file)
--- a/src/mac/carbon/taskbar.cpp
+++ b/src/mac/carbon/taskbar.cpp
@@ -1,18 +1,16 @@
-/////////////////////////////////////////////////////////////////////////////
-// Name:               taskbar.cpp
-// Purpose:     wxTaskBarIcon OSX Implementation
+///////////////////////////////////////////////////////////////////////////////
+// Name:        src/mac/carbon/taskbar.cpp
+// Purpose:    wxTaskBarIcon

 // Author:      Ryan Norton
 // Modified by:
 // Created:     09/25/2004
 // RCS-ID:      $Id$
 // Copyright:   (c) 2004 Ryan Norton
 // Licence:     wxWindows licence
 // Author:      Ryan Norton
 // Modified by:
 // Created:     09/25/2004
 // RCS-ID:      $Id$
 // Copyright:   (c) 2004 Ryan Norton
 // Licence:     wxWindows licence

-/////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////

 
 #include "wx/wxprec.h"
 
 
 #include "wx/wxprec.h"
 

-#include "wx/defs.h"
-

 #ifdef wxHAS_TASK_BAR_ICON
 
 #include "wx/mac/private.h"
 #ifdef wxHAS_TASK_BAR_ICON
 
 #include "wx/mac/private.h"


@@ -20,195 +18,504 @@
 #include "wx/taskbar.h"
 #include "wx/menu.h"
 #include "wx/icon.h"
 #include "wx/taskbar.h"
 #include "wx/menu.h"
 #include "wx/icon.h"

+#include "wx/dcmemory.h"
+
+
+class wxTaskBarIconImpl
+{
+public:
+    wxTaskBarIconImpl(wxTaskBarIcon* parent);
+    virtual ~wxTaskBarIconImpl();
+
+    virtual bool IsIconInstalled() const = 0;
+    virtual bool SetIcon(const wxIcon& icon, const wxString& tooltip) = 0;
+    virtual bool RemoveIcon() = 0;
+    virtual bool PopupMenu(wxMenu *menu) = 0;

 
 

+    wxMenu * CreatePopupMenu()
+    { return m_parent->CreatePopupMenu(); }
+
+    wxTaskBarIcon *m_parent;
+    class wxTaskBarIconWindow *m_menuEventWindow;
+
+    DECLARE_NO_COPY_CLASS(wxTaskBarIconImpl)
+};
+
+//-----------------------------------------------------------------------------

 //
 //

-//TODO:  Implement  Apple Software Guidelines - show the top window it it's not shown,
-//and force it to be unminimized - and all unminimized windows should be brought to 
-//the front
+//  wxTaskBarIconWindow

 //
 //

-//TODO:
-IMPLEMENT_DYNAMIC_CLASS(wxTaskBarIcon, wxEvtHandler)
+//  Event handler for menus
+//  NB: Since wxWindows in Mac HAVE to have parents we need this to be
+//  a top level window...
+//-----------------------------------------------------------------------------
+
+class wxTaskBarIconWindow : public wxTopLevelWindow
+{
+public:
+    wxTaskBarIconWindow(wxTaskBarIconImpl *impl)
+        : wxTopLevelWindow(NULL, -1, wxT("")), m_impl(impl)
+    {
+        Connect(
+            -1, wxEVT_COMMAND_MENU_SELECTED,
+            wxCommandEventHandler(wxTaskBarIconWindow::OnMenuEvent) );
+    }
+
+    void OnMenuEvent(wxCommandEvent& event)
+    {
+        m_impl->m_parent->ProcessEvent(event);
+    }
+
+private:
+    wxTaskBarIconImpl *m_impl;
+};

 
 

-pascal OSStatus wxDockEventHandler(    EventHandlerCallRef inHandlerCallRef,
-                                                                       EventRef inEvent, void* pData)
+class wxDockTaskBarIcon : public wxTaskBarIconImpl

 {
 {

-    wxTaskBarIcon*& pTB = (wxTaskBarIcon*&) pData;
+public:
+    wxDockTaskBarIcon(wxTaskBarIcon* parent);
+    virtual ~wxDockTaskBarIcon();
+
+    virtual bool IsIconInstalled() const;
+    virtual bool SetIcon(const wxIcon& icon, const wxString& tooltip);
+    virtual bool RemoveIcon();
+    virtual bool PopupMenu(wxMenu *menu);
+
+    wxMenu* DoCreatePopupMenu();
+
+    EventHandlerRef     m_eventHandlerRef;
+    EventHandlerUPP     m_eventupp;
+    wxWindow           *m_eventWindow;
+    wxMenu             *m_pMenu;
+    MenuRef             m_theLastMenu;
+    bool                m_iconAdded;
+};
+
+// Forward declarations for utility functions for dock implementation
+pascal OSStatus wxDockEventHandler(
+    EventHandlerCallRef inHandlerCallRef,
+    EventRef inEvent, void* pData );
+wxMenu * wxDeepCopyMenu( wxMenu *menu );
+
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+//
+//  wxTaskBarIconImpl
+//
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+wxTaskBarIconImpl::wxTaskBarIconImpl(wxTaskBarIcon* parent)
+    : m_parent(parent), m_menuEventWindow(new wxTaskBarIconWindow(this))
+{
+}
+
+wxTaskBarIconImpl::~wxTaskBarIconImpl()
+{
+    delete m_menuEventWindow;
+}
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+//
+//  wxDockTaskBarIcon
+//
+//  OS X Dock implementation of wxTaskBarIcon using Carbon
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

 
 

+//-----------------------------------------------------------------------------
+// wxDockEventHandler
+//
+// This is the global Mac/Carbon event handler for the dock.
+// We need this for two reasons:
+// 1) To handle wxTaskBarIcon menu events (see below for why)
+// 2) To handle events from the dock when it requests a menu
+//-----------------------------------------------------------------------------
+pascal OSStatus wxDockEventHandler( EventHandlerCallRef inHandlerCallRef,
+                                    EventRef inEvent, void *pData )
+{
+    // Get the parameters we want from the event
+    wxDockTaskBarIcon* pTB = (wxDockTaskBarIcon*) pData;

     const UInt32 eventClass = GetEventClass(inEvent);
     const UInt32 eventKind = GetEventKind(inEvent);
     const UInt32 eventClass = GetEventClass(inEvent);
     const UInt32 eventKind = GetEventKind(inEvent);

-            
-    if (eventClass == kEventClassCommand && eventKind == kEventCommandProcess) 
-    {
-    //TODO:
-    //TODO:    This is a complete copy of 
-    //static pascal OSStatus wxMacAppCommandEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
-    //FIND A WAY TO EXTERN THIS AND USE THAT HERE INSTEAD!!
-    //TODO:
-       MenuRef hMenu = MAC_WXHMENU(pTB->GetCurrentMenu()->GetHMenu());
-    OSStatus result = eventNotHandledErr ;
-
-    HICommand command ;
-    OSErr err;
-    
-    err =    GetEventParameter(inEvent, kEventParamDirectObject, typeHICommand,        
-                            NULL, sizeof(HICommand), NULL, &command);
-    wxASSERT(err == noErr);
-                
-    MenuItemIndex menuItemIndex;
-    err = GetIndMenuItemWithCommandID(hMenu, command.commandID, 1, NULL, &menuItemIndex);
-    wxASSERT(err == noErr);
-                
-                    
-    MenuCommand id = command.commandID ;
-    wxMenuItem* item = NULL;
-    // for items we don't really control
-    if ( id == kHICommandPreferences )
+
+    // Handle wxTaskBar menu events (note that this is a global event handler
+    // so it will actually get called by all commands/menus)
+    if ((eventClass == kEventClassCommand) && (eventKind == kEventCommandProcess))

     {
     {

-        id = wxApp::s_macPreferencesMenuItemId ;
-        
-        wxMenuBar* mbar = wxMenuBar::MacGetInstalledMenuBar() ;
-        if ( mbar )
+        // if we have no taskbar menu quickly pass it back to wxApp
+        if (pTB->m_pMenu == NULL)
+            return eventNotHandledErr;
+
+        // This is the real reason why we need this. Normally menus
+        // get handled in wxMacAppEventHandler
+        //
+        // pascal OSStatus wxMacAppEventHandler(EventHandlerCallRef handler,
+        //                                      EventRef event, void *data)
+        //
+        // However, in the case of a taskbar menu call
+        // command.menu.menuRef IS NULL!
+        // Which causes the wxApp handler just to skip it.
+        MenuRef taskbarMenuRef = MAC_WXHMENU(pTB->m_pMenu->GetHMenu());
+        OSStatus err;
+
+        // get the HICommand from the event
+        HICommand command;
+        err = GetEventParameter(
+            inEvent, kEventParamDirectObject,
+            typeHICommand, NULL,
+            sizeof(HICommand), NULL, &command );
+        if (err == noErr)

         {
         {

-            wxMenu* menu = NULL ;
-            item = mbar->FindItem( id , &menu ) ;
-        }
-    }
-   else if (id != 0)
-        GetMenuItemRefCon( hMenu , menuItemIndex , (UInt32*) &item ) ;
+            // Obtain the REAL menuRef and the menuItemIndex in the real menuRef
+            //
+            // NOTE: menuRef is generally used here for submenus, as
+            // GetMenuItemRefCon could give an incorrect wxMenuItem if we pass
+            // just the top level wxTaskBar menu
+            MenuItemIndex menuItemIndex;
+            MenuRef menuRef;

 
 

-    if ( item )
-    {
-                if (item->IsCheckable())
+            err = GetIndMenuItemWithCommandID(
+                taskbarMenuRef,
+                command.commandID,
+                1, &menuRef, &menuItemIndex );
+            if (err == noErr)
+            {
+                MenuCommand id = command.commandID;
+                wxMenuItem *item = NULL;
+
+                if (id != 0) // get the wxMenuItem reference from the MenuRef
+                    GetMenuItemRefCon( menuRef, menuItemIndex, (UInt32*) &item );
+
+                if (item)

                 {
                 {

-                    item->Check( !item->IsChecked() ) ;
+                    // Handle items that are checkable
+                    // FIXME: Doesn't work (at least on 10.2)!
+                    if (item->IsCheckable())
+                        item->Check( !item->IsChecked() );
+
+                    // send the wxEvent to the wxMenu
+                    item->GetMenu()->SendEvent( id, item->IsCheckable() ? item->IsChecked() : -1 );
+
+                    // successfully handled the event
+                    err = noErr;

                 }
                 }

+            }
+        } //end if noErr on getting HICommand from event

 
 

-                item->GetMenu()->SendEvent( id , item->IsCheckable() ? item->IsChecked() : -1 ) ;
-                result = noErr ;
+        // return whether we handled the event or not
+        return err;

     }
     }

-    return result ;
-    }
-    
-    wxASSERT(eventClass == kEventClassApplication && eventKind == kEventAppGetDockTileMenu);
-                       
-       //process the right click event
-       wxTaskBarIconEvent evt(wxEVT_TASKBAR_RIGHT_UP,NULL);
-       pTB->ProcessEvent(evt);
-               
-    //create popup menu
+
+    // We better have a kEventClassApplication/kEventAppGetDockTileMenu combo here,
+    // otherwise something is truly funky
+    wxASSERT(eventClass == kEventClassApplication &&
+             eventKind == kEventAppGetDockTileMenu);
+
+    // process the right click events
+    // NB: This may result in double or even triple-creation of the menus
+    // We need to do this for 2.4 compat, however
+    wxTaskBarIconEvent downevt(wxEVT_TASKBAR_RIGHT_DOWN, NULL);
+    pTB->m_parent->ProcessEvent(downevt);
+
+    wxTaskBarIconEvent upevt(wxEVT_TASKBAR_RIGHT_UP, NULL);
+    pTB->m_parent->ProcessEvent(upevt);
+
+    // create popup menu

     wxMenu* menu = pTB->DoCreatePopupMenu();
     wxMenu* menu = pTB->DoCreatePopupMenu();

-    
-    OSStatus err = noErr;

 
 

-    if(menu)
+    OSStatus err = eventNotHandledErr;
+
+    if (menu != NULL)

     {
     {

-        //note to self - a MenuRef IS A MenuHandle
+        // note to self - a MenuRef *is* a MenuHandle

         MenuRef hMenu = MAC_WXHMENU(menu->GetHMenu());
 
         MenuRef hMenu = MAC_WXHMENU(menu->GetHMenu());
 

-        //When we call SetEventParameter it will decrement
-        //the reference count of the menu - we need to make
-        //sure it stays around in the wxMenu class here
+        // When SetEventParameter is called it will decrement
+        // the reference count of the menu - we need to make
+        // sure it stays around in the wxMenu class here

         RetainMenu(hMenu);
 
         RetainMenu(hMenu);
 

-        //set the actual dock menu
-        err = SetEventParameter((EventRef) inEvent, kEventParamMenuRef, 
-                                       typeMenuRef, sizeof(MenuRef), 
-                                        &hMenu);
-        wxASSERT(err == 0);
+        // set the actual dock menu
+        err = SetEventParameter(
+            inEvent, kEventParamMenuRef,
+            typeMenuRef, sizeof(MenuRef), &hMenu );
+        verify_noerr( err );

     }
 
     }
 

-       return err;
+    return err;

 }
 
 }
 

-DEFINE_ONE_SHOT_HANDLER_GETTER( wxDockEventHandler );
-
-wxTaskBarIcon::wxTaskBarIcon(const wxTaskBarIconType& nType)
-    : m_nType(nType), m_pEventHandlerRef(NULL), m_pMenu(NULL), m_iconAdded(false)
-{
-    //Register the events that will return the dock menu
-       EventTypeSpec tbEventList[] = { { kEventClassCommand, kEventProcessCommand },
-                                    { kEventClassApplication, kEventAppGetDockTileMenu } };
-       
-#ifdef __WXDEBUG__
-       OSStatus err =
-#endif
-      InstallApplicationEventHandler(
-            GetwxDockEventHandlerUPP(),
-            GetEventTypeCount(tbEventList), tbEventList, 
-                       this, (&(EventHandlerRef&)m_pEventHandlerRef));
-                       
-       wxASSERT(err == noErr);
+//-----------------------------------------------------------------------------
+// wxDeepCopyMenu
+//
+// Performs a top-to-bottom copy of the input menu and all of its
+// submenus.
+//
+// This is mostly needed for 2.4 compatability. However wxPython and others
+// still use this way of setting the taskbarmenu.
+//-----------------------------------------------------------------------------
+wxMenu * wxDeepCopyMenu( wxMenu *menu )
+{
+    if (menu == NULL)
+        return NULL;
+
+    // NB:  Here we have to perform a deep copy of the menu,
+    // copying each and every menu item from menu to m_pMenu.
+    // Other implementations use wxWindow::PopupMenu here,
+    // which idle execution until the user selects something,
+    // but since the Mac handles this internally, we can't -
+    // and have no way at all to idle it while the dock menu
+    // is being shown before menu goes out of scope (it may
+    // not be on the heap, and may expire right after this function
+    // is done - we need it to last until the carbon event is triggered -
+    // that's when the user right clicks).
+    //
+    // Also, since there is no equal (assignment) operator
+    // on either wxMenu or wxMenuItem, we have to do all the
+    // dirty work ourselves.
+
+    // perform a deep copy of the menu
+    wxMenuItemList& theList = menu->GetMenuItems();
+    wxMenuItemList::compatibility_iterator theNode = theList.GetFirst();
+
+    // create the main menu
+    wxMenu *m_pMenu = new wxMenu(menu->GetTitle());
+
+    while (theNode != NULL)
+    {
+        wxMenuItem* theItem = theNode->GetData();
+        m_pMenu->Append(
+            new wxMenuItem(
+                m_pMenu, // parent menu
+                theItem->GetId(), // id
+                theItem->GetText(), // text label
+                theItem->GetHelp(), // status bar help string
+                theItem->GetKind(), // menu flags - checkable, separator, etc.
+                wxDeepCopyMenu(theItem->GetSubMenu()) )); // submenu
+
+        theNode = theNode->GetNext();
+    }
+
+    return m_pMenu;

 }
 
 }
 

-wxTaskBarIcon::~wxTaskBarIcon()
+//-----------------------------------------------------------------------------
+// wxDockTaskBarIcon ctor
+//
+// Initializes the dock implementation of wxTaskBarIcon.
+//
+// Here we create some Mac-specific event handlers and UPPs.
+//-----------------------------------------------------------------------------
+wxDockTaskBarIcon::wxDockTaskBarIcon(wxTaskBarIcon* parent)
+    :   wxTaskBarIconImpl(parent),
+        m_eventHandlerRef(NULL), m_pMenu(NULL),
+        m_theLastMenu(GetApplicationDockTileMenu()), m_iconAdded(false)

 {
 {

-    RemoveEventHandler((EventHandlerRef&)m_pEventHandlerRef);
+    // register the events that will return the dock menu
+    EventTypeSpec tbEventList[] =
+    {
+        { kEventClassCommand, kEventProcessCommand },
+        { kEventClassApplication, kEventAppGetDockTileMenu }
+    };
+
+    m_eventupp = NewEventHandlerUPP(wxDockEventHandler);
+    wxASSERT(m_eventupp != NULL);
+
+    OSStatus err = InstallApplicationEventHandler(
+            m_eventupp,
+            GetEventTypeCount(tbEventList), tbEventList,
+            this, &m_eventHandlerRef);
+    verify_noerr( err );

 }
 
 }
 

-wxMenu* wxTaskBarIcon::GetCurrentMenu()
+//-----------------------------------------------------------------------------
+// wxDockTaskBarIcon Destructor
+//
+// Cleans up mac events and restores the old icon to the dock
+//-----------------------------------------------------------------------------
+wxDockTaskBarIcon::~wxDockTaskBarIcon()

 {
 {

-    return m_pMenu;
+    // clean up event handler and event UPP
+    RemoveEventHandler(m_eventHandlerRef);
+    DisposeEventHandlerUPP(m_eventupp);
+
+    // restore old icon and menu to the dock
+    RemoveIcon();

 }
 
 }
 

-wxMenu* wxTaskBarIcon::DoCreatePopupMenu()
+//-----------------------------------------------------------------------------
+// wxDockTaskBarIcon::DoCreatePopupMenu
+//
+// Helper function that handles a request from the dock event handler
+// to get the menu for the dock
+//-----------------------------------------------------------------------------
+wxMenu * wxDockTaskBarIcon::DoCreatePopupMenu()

 {
 {

-    if (m_pMenu)
-        delete m_pMenu;
+    // get the menu from the parent
+    wxMenu* theNewMenu = CreatePopupMenu();

 
 

-    m_pMenu = CreatePopupMenu();
-    
-    if (m_pMenu)
-        m_pMenu->SetEventHandler(this);
-    
+    if (theNewMenu)
+    {
+        if (m_pMenu)
+            delete m_pMenu;
+        m_pMenu = theNewMenu;
+        m_pMenu->SetInvokingWindow(m_menuEventWindow);
+    }
+
+    // the return here can be one of three things
+    // (in order of priority):
+    // 1) User passed a menu from CreatePopupMenu override
+    // 2) menu sent to and copied from PopupMenu
+    // 3) If neither (1) or (2), then NULL
+    //

     return m_pMenu;
 }
 
     return m_pMenu;
 }
 

-// Operations:
-bool wxTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
+//-----------------------------------------------------------------------------
+// wxDockTaskBarIcon::IsIconInstalled
+//
+// Returns whether or not the dock is not using the default image
+//-----------------------------------------------------------------------------
+bool wxDockTaskBarIcon::IsIconInstalled() const

 {
 {

-    //TODO: (IT WORKS!)  Make work without mask - mayby by using a wxDC?
-    
-    wxASSERT(icon.GetMask() != NULL);
-    
-       CGImageRef pImage;
-       //create the icon from the bitmap and mask bitmap contained within
-       OSStatus err = CreateCGImageFromPixMaps(
-               GetGWorldPixMap(MAC_WXHBITMAP(icon.GetHBITMAP())),
-               GetGWorldPixMap(MAC_WXHBITMAP(icon.GetMask()->GetMaskBitmap())),
-               &pImage
-               );
-               
-       wxASSERT(err == 0);
-       
-       err = SetApplicationDockTileImage(pImage);
-               
-       wxASSERT(err == 0);
-    
+    return m_iconAdded;
+}
+
+//-----------------------------------------------------------------------------
+// wxDockTaskBarIcon::SetIcon
+//
+// Sets the icon for the dock CGImage functions and SetApplicationDockTileImage
+//-----------------------------------------------------------------------------
+bool wxDockTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
+{
+    // convert the wxIcon into a wxBitmap so we can perform some
+    // wxBitmap operations with it
+    wxBitmap bmp( icon );
+    wxASSERT( bmp.Ok() );
+
+    // get the CGImageRef for the wxBitmap:
+    // OSX builds only, but then the dock only exists in OSX
+    CGImageRef pImage = (CGImageRef) bmp.CGImageCreate();
+    wxASSERT( pImage != NULL );
+
+    // actually set the dock image
+    OSStatus err = SetApplicationDockTileImage( pImage );
+    verify_noerr( err );
+
+    // free the CGImage, now that it's referenced by the dock

     if (pImage != NULL)
     if (pImage != NULL)

-        CGImageRelease(pImage);
+        CGImageRelease( pImage );

 
 

-       return m_iconAdded = err == noErr;
+    bool success = (err == noErr);
+    m_iconAdded = success;
+
+    return success;

 }
 }

-       
-bool wxTaskBarIcon::RemoveIcon()
+
+//-----------------------------------------------------------------------------
+// wxDockTaskBarIcon::RemoveIcon
+//
+// Restores the old image for the dock via RestoreApplicationDockTileImage
+//-----------------------------------------------------------------------------
+bool wxDockTaskBarIcon::RemoveIcon()

 {
 {

-       OSStatus err = RestoreApplicationDockTileImage();
-       wxASSERT(err == 0);
+    if (m_pMenu)
+    {
+        delete m_pMenu;
+        m_pMenu = NULL;
+    }
+
+    // restore old icon to the dock
+    OSStatus err = RestoreApplicationDockTileImage();
+    verify_noerr( err );
+
+    // restore the old menu to the dock
+    SetApplicationDockTileMenu( m_theLastMenu );

 
 

-       return !(m_iconAdded = !(err == noErr));
+    bool success = (err == noErr);
+    m_iconAdded = !success;
+
+    return success;

 }
 }

-       
-bool wxTaskBarIcon::PopupMenu(wxMenu *menu)
+
+//-----------------------------------------------------------------------------
+// wxDockTaskBarIcon::PopupMenu
+//
+// 2.4 and wxPython method that "pops of the menu in the taskbar".
+//
+// In reality because of the way the dock menu works in carbon
+// we just save the menu, and if the user didn't override CreatePopupMenu
+// return the menu passed here, thus sort of getting the same effect.
+//-----------------------------------------------------------------------------
+bool wxDockTaskBarIcon::PopupMenu(wxMenu *menu)

 {
 {

+    wxASSERT(menu != NULL);
+

     if (m_pMenu)
         delete m_pMenu;
     if (m_pMenu)
         delete m_pMenu;

-    
-    m_pMenu = menu;
-    
-    wxASSERT(menu);
-    m_pMenu->SetEventHandler(this);
-    
-    return SetApplicationDockTileMenu(MAC_WXHMENU(menu->GetHMenu()));
+
+    // start copy of menu
+    m_pMenu = wxDeepCopyMenu(menu);
+
+    // finish up
+    m_pMenu->SetInvokingWindow(m_menuEventWindow);
+
+    return true;

 }
 
 }
 

-#endif //wxHAS_TASK_BAR_ICON
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+//
+//  wxTaskBarIcon
+//
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+IMPLEMENT_DYNAMIC_CLASS(wxTaskBarIcon, wxEvtHandler)
+
+//-----------------------------------------------------------------------------
+// wxTaskBarIcon Constructor
+//
+// Creates the backend
+//
+// Note that we only support DOCK currently as others require cocoa and
+// also some require hacks and other such things. (MenuExtras are
+// actually seperate programs that also require a special undocumented id
+// hack and other such fun stuff).
+//-----------------------------------------------------------------------------
+wxTaskBarIcon::wxTaskBarIcon(wxTaskBarIconType nType)
+{
+    wxASSERT_MSG(
+        nType == DOCK,
+        wxT("Only the DOCK implementation of wxTaskBarIcon on Mac-Carbon is currently supported!") );
+
+    m_impl = new wxDockTaskBarIcon(this);
+}
+
+//-----------------------------------------------------------------------------
+// wxTaskBarIcon Destructor
+//
+// Destroys the backend
+//-----------------------------------------------------------------------------
+wxTaskBarIcon::~wxTaskBarIcon()
+{
+    delete m_impl;
+}
+
+//-----------------------------------------------------------------------------
+// wxTaskBarIcon::SetIcon
+// wxTaskBarIcon::RemoveIcon
+// wxTaskBarIcon::PopupMenu
+//
+// Just calls the backend version of the said function.
+//-----------------------------------------------------------------------------
+bool wxTaskBarIcon::IsIconInstalled() const
+{ return m_impl->IsIconInstalled(); }
+
+bool wxTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
+{ return m_impl->SetIcon(icon, tooltip); }
+
+bool wxTaskBarIcon::RemoveIcon()
+{ return m_impl->RemoveIcon(); }
+
+bool wxTaskBarIcon::PopupMenu(wxMenu *menu)
+{ return m_impl->PopupMenu(menu); }
+
+#endif // wxHAS_TASK_BAR_ICON