xref: /aoo41x/main/vcl/inc/vcl/menu.hxx (revision 4d7c9de0)

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 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
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 * with the License.  You may obtain a copy of the License at
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#ifndef _SV_MENU_HXX
#define _SV_MENU_HXX

#include <vcl/sv.h>
#include <vcl/dllapi.h>
#include <tools/rc.hxx>
#include <tools/resid.hxx>
#include <vcl/bitmapex.hxx>
#include <tools/color.hxx>
#include <vcl/vclevent.hxx>
#include <com/sun/star/uno/Reference.hxx>

struct MenuItemData;
class Point;
class Size;
class Rectangle;
class Menu;
class MenuItemList;
class HelpEvent;
class Image;
class PopupMenu;
class KeyCode;
class KeyEvent;
class AppBarWindow;
class MenuFloatingWindow;
class Window;
class SalMenu;
struct SystemMenuData;

namespace com {
namespace sun {
namespace star {
namespace accessibility {
    class XAccessible;
}}}}

namespace vcl { struct MenuLayoutData; }

// --------------
// - Menu-Types -
// --------------

#define MENU_APPEND 			((sal_uInt16)0xFFFF)
#define MENU_ITEM_NOTFOUND		((sal_uInt16)0xFFFF)

#define POPUPMENU_EXECUTE_DOWN	((sal_uInt16)0x0001)
#define POPUPMENU_EXECUTE_UP	((sal_uInt16)0x0002)
#define POPUPMENU_EXECUTE_LEFT	((sal_uInt16)0x0004)
#define POPUPMENU_EXECUTE_RIGHT ((sal_uInt16)0x0008)

#define POPUPMENU_NOMOUSEUPCLOSE ((sal_uInt16)0x0010)

// By changes you must also change: rsc/vclrsc.hxx
enum MenuItemType { MENUITEM_DONTKNOW, MENUITEM_STRING, MENUITEM_IMAGE,
					MENUITEM_STRINGIMAGE, MENUITEM_SEPARATOR };

// By changes you must also change: rsc/vclrsc.hxx
typedef sal_uInt16 MenuItemBits;
#define MIB_CHECKABLE			((MenuItemBits)0x0001)
#define MIB_RADIOCHECK			((MenuItemBits)0x0002)
#define MIB_AUTOCHECK			((MenuItemBits)0x0004)
#define MIB_ABOUT				((MenuItemBits)0x0008)
#define MIB_HELP				((MenuItemBits)0x0010)
#define MIB_POPUPSELECT 		((MenuItemBits)0x0020)
// not in rsc/vclsrc.hxx because only a prelimitary solution
#define MIB_NOSELECT 		    ((MenuItemBits)0x0040)
#define MIB_ICON 		    ((MenuItemBits)0x0080)
#define MIB_TEXT 		    ((MenuItemBits)0x0100)

#define MENU_FLAG_NOAUTOMNEMONICS		0x0001
#define MENU_FLAG_HIDEDISABLEDENTRIES	0x0002

// overrides default hiding of disabled entries in popup menus
#define MENU_FLAG_ALWAYSSHOWDISABLEDENTRIES	0x0004

// forces images & toggle visibility for toolbar config popup
#define MENU_FLAG_SHOWCHECKIMAGES     0x0008

struct ImplMenuDelData
{
	ImplMenuDelData* mpNext;
	const Menu* mpMenu;

	explicit ImplMenuDelData( const Menu* );
	~ImplMenuDelData();

	bool isDeleted() const { return mpMenu == 0; }
};

// --------
// - Menu -
// --------

struct MenuLogo
{
	BitmapEx	aBitmap;
	Color		aStartColor;
	Color		aEndColor;
};

class VCL_DLLPUBLIC Menu : public Resource
{
	friend class MenuBar;
	friend class MenuBarWindow;
	friend class MenuFloatingWindow;
	friend class PopupMenu;
	friend class SystemWindow;
	friend struct ImplMenuDelData;
private:
	ImplMenuDelData*	mpFirstDel;
	MenuItemList*		pItemList;			// Liste mit den MenuItems
	MenuLogo*			pLogo;
	Menu*				pStartedFrom;
	Window* 			pWindow;

	Link				aActivateHdl;		// Active-Handler
	Link				aDeactivateHdl; 	// Deactivate-Handler
	Link				aHighlightHdl;		// Highlight-Handler
	Link				aSelectHdl; 		// Highlight-Handler

    VclEventListeners   maEventListeners;
    VclEventListeners   maChildEventListeners;

	XubString			aTitleText; 		// PopupMenu-Text

	sal_uLong				nEventId;
	sal_uInt16				mnHighlightedItemPos; // for native menues: keeps track of the highlighted item
	sal_uInt16				nMenuFlags;
	sal_uInt16				nDefaultItem;		// Id vom Default-Item
	sal_uInt16				nSelectedId;
	sal_uInt16				nHighlightedItem;
	// Fuer Ausgabe:
	sal_uInt16				nCheckPos;
	sal_uInt16				nImagePos;
	sal_uInt16				nTextPos;

	sal_Bool				bIsMenuBar	: 1,		// Handelt es sich um den MenuBar
						bCanceled	: 1,		// Waehrend eines Callbacks abgebrochen
						bInCallback : 1,		// In Activate/Deactivate
						bKilled 	: 1;		// Gekillt...

    ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible > mxAccessible;
	mutable vcl::MenuLayoutData* mpLayoutData;
	SalMenu*			mpSalMenu;

protected:
	SAL_DLLPRIVATE void				ImplInit();
	SAL_DLLPRIVATE void				ImplLoadRes( const ResId& rResId );
	SAL_DLLPRIVATE Menu*			ImplGetStartMenu();
	SAL_DLLPRIVATE Menu*			ImplFindSelectMenu();
	SAL_DLLPRIVATE Menu*			ImplFindMenu( sal_uInt16 nId );
	SAL_DLLPRIVATE Size				ImplCalcSize( Window* pWin );
	SAL_DLLPRIVATE sal_Bool				ImplIsVisible( sal_uInt16 nPos ) const;
    SAL_DLLPRIVATE sal_Bool             ImplIsSelectable( sal_uInt16 nPos ) const;
	SAL_DLLPRIVATE sal_uInt16			ImplGetVisibleItemCount() const;
	SAL_DLLPRIVATE sal_uInt16			ImplGetFirstVisible() const;
	SAL_DLLPRIVATE sal_uInt16			ImplGetPrevVisible( sal_uInt16 nPos ) const;
	SAL_DLLPRIVATE sal_uInt16			ImplGetNextVisible( sal_uInt16 nPos ) const;
	SAL_DLLPRIVATE void				ImplPaint( Window* pWin, sal_uInt16 nBorder, long nOffY = 0, MenuItemData* pThisDataOnly = 0, sal_Bool bHighlighted = sal_False, bool bLayout = false ) const;
	SAL_DLLPRIVATE void				ImplSelect();
	SAL_DLLPRIVATE void				ImplCallHighlight( sal_uInt16 nHighlightItem );
    SAL_DLLPRIVATE void             ImplCallEventListeners( sal_uLong nEvent, sal_uInt16 nPos );
	DECL_DLLPRIVATE_LINK(           ImplCallSelect, Menu* );

    SAL_DLLPRIVATE void				ImplFillLayoutData() const;
    SAL_DLLPRIVATE SalMenu*         ImplGetSalMenu() { return mpSalMenu; }
    SAL_DLLPRIVATE void             ImplSetSalMenu( SalMenu *pMenu );
    SAL_DLLPRIVATE const XubString& ImplGetHelpText( sal_uInt16 nItemId ) const;

    // returns native check and option menu symbol height;
    // return value is Max( rCheckHeight, rRadioHeight )
    SAL_DLLPRIVATE long             ImplGetNativeCheckAndRadioSize( Window*, long& rCheckHeight, long& rRadioHeight, long &rMaxWidth ) const;

    SAL_DLLPRIVATE void                ImplAddDel( ImplMenuDelData &rDel );
    SAL_DLLPRIVATE void                ImplRemoveDel( ImplMenuDelData &rDel );
public:
    SAL_DLLPRIVATE void				ImplKillLayoutData() const;
    SAL_DLLPRIVATE Menu*            ImplGetStartedFrom() const;

						    Menu();
    explicit                Menu( sal_Bool bMenuBar );
	SAL_DLLPRIVATE Window*  ImplGetWindow() const { return pWindow; }


    SAL_DLLPRIVATE void ImplSelectWithStart( Menu* pStartMenu = NULL );
public:
	virtual 			~Menu();

	virtual void		Activate();
	virtual void		Deactivate();
	virtual void		Highlight();
	virtual void		Select();
	virtual void		RequestHelp( const HelpEvent& rHEvt );

	void				InsertItem( sal_uInt16 nItemId, const XubString& rStr,
									MenuItemBits nItemBits = 0,
									sal_uInt16 nPos = MENU_APPEND );
	void				InsertItem( sal_uInt16 nItemId, const Image& rImage,
									MenuItemBits nItemBits = 0,
									sal_uInt16 nPos = MENU_APPEND );
	void				InsertItem( sal_uInt16 nItemId,
									const XubString& rString, const Image& rImage,
									MenuItemBits nItemBits = 0,
									sal_uInt16 nPos = MENU_APPEND );
	void				InsertItem( const ResId& rResId, sal_uInt16 nPos = MENU_APPEND );
	void				InsertSeparator( sal_uInt16 nPos = MENU_APPEND );
	void				RemoveItem( sal_uInt16 nPos );
	void				CopyItem( const Menu& rMenu, sal_uInt16 nPos,
								  sal_uInt16 nNewPos = MENU_APPEND );
	void				Clear();

    void                CreateAutoMnemonics();

	void				SetMenuFlags( sal_uInt16 nFlags ) { nMenuFlags = nFlags; }
	sal_uInt16				GetMenuFlags() const { return nMenuFlags; }

	sal_uInt16				GetItemCount() const;
	sal_uInt16				GetItemId( sal_uInt16 nPos ) const;
	sal_uInt16				GetItemPos( sal_uInt16 nItemId ) const;
	MenuItemType		GetItemType( sal_uInt16 nPos ) const;
	sal_uInt16				GetCurItemId() const;
	void 					SetHightlightItem( sal_uInt16 nHighlightedItem );
	sal_uInt16 				GetHighlightItem() const;

	XubString			GetItemAccKeyStrFromPos(sal_uInt16 nPos ) const ;

	sal_Bool				IsTemporaryItemFromPos(sal_uInt16 nPos ) const;
	void				SetDefaultItem( sal_uInt16 nItemId )	{ nDefaultItem = nItemId; }
	sal_uInt16				GetDefaultItem() const				{ return nDefaultItem; }

	void				SetItemBits( sal_uInt16 nItemId, MenuItemBits nBits );
	MenuItemBits		GetItemBits( sal_uInt16 nItemId ) const;

	void				SetUserValue( sal_uInt16 nItemId, sal_uLong nValue );
	sal_uLong		        GetUserValue( sal_uInt16 nItemId ) const;

	void				SetPopupMenu( sal_uInt16 nItemId, PopupMenu* pMenu );
	PopupMenu*			GetPopupMenu( sal_uInt16 nItemId ) const;

	void				SetAccelKey( sal_uInt16 nItemId, const KeyCode& rKeyCode );
	KeyCode 			GetAccelKey( sal_uInt16 nItemId ) const;

	void				CheckItem( sal_uInt16 nItemId, sal_Bool bCheck = sal_True );
	sal_Bool				IsItemChecked( sal_uInt16 nItemId ) const;

    void				SelectItem( sal_uInt16 nItemId );
    void				DeSelect() { SelectItem( 0xFFFF ); } // MENUITEMPOS_INVALID

	void				EnableItem( sal_uInt16 nItemId, sal_Bool bEnable = sal_True );
	sal_Bool				IsItemEnabled( sal_uInt16 nItemId ) const;

    void                ShowItem( sal_uInt16 nItemId, sal_Bool bVisible = sal_True );
    void                HideItem( sal_uInt16 nItemId ) { ShowItem( nItemId, sal_False ); }

    sal_Bool				IsItemVisible( sal_uInt16 nItemId ) const;
    sal_Bool				IsItemPosVisible( sal_uInt16 nItemPos ) const;
    sal_Bool				IsMenuVisible() const;
    sal_Bool				IsMenuBar() const { return bIsMenuBar; }

	void				RemoveDisabledEntries( sal_Bool bCheckPopups = sal_True, sal_Bool bRemoveEmptyPopups = sal_False );
	sal_Bool				HasValidEntries( sal_Bool bCheckPopups = sal_True );

	void				SetItemText( sal_uInt16 nItemId, const XubString& rStr );
	XubString			GetItemText( sal_uInt16 nItemId ) const;

	void				SetItemImage( sal_uInt16 nItemId, const Image& rImage );
	Image				GetItemImage( sal_uInt16 nItemId ) const;
    void				SetItemImageAngle( sal_uInt16 nItemId, long nAngle10 );
    long				GetItemImageAngle( sal_uInt16 nItemId ) const;
    void				SetItemImageMirrorMode( sal_uInt16 nItemId, sal_Bool bMirror );
    sal_Bool				GetItemImageMirrorMode( sal_uInt16 ) const;

	void				SetItemCommand( sal_uInt16 nItemId, const XubString& rCommand );
	const XubString&	GetItemCommand( sal_uInt16 nItemId ) const;

	void				SetHelpText( sal_uInt16 nItemId, const XubString& rString );
	const XubString&	GetHelpText( sal_uInt16 nItemId ) const;

	void				SetTipHelpText( sal_uInt16 nItemId, const XubString& rString );
	const XubString&	GetTipHelpText( sal_uInt16 nItemId ) const;

    void                SetHelpCommand( sal_uInt16 nItemId, const XubString& rString );
    const XubString&    GetHelpCommand( sal_uInt16 nItemId ) const;

    void				SetHelpId( sal_uInt16 nItemId, const rtl::OString& rHelpId );
    rtl::OString		GetHelpId( sal_uInt16 nItemId ) const;

	void				SetActivateHdl( const Link& rLink ) 	{ aActivateHdl = rLink; }
	const Link& 		GetActivateHdl() const					{ return aActivateHdl; }

	void				SetDeactivateHdl( const Link& rLink )	{ aDeactivateHdl = rLink; }
	const Link& 		GetDeactivateHdl() const				{ return aDeactivateHdl; }

	void				SetHighlightHdl( const Link& rLink )	{ aHighlightHdl = rLink; }
	const Link& 		GetHighlightHdl() const 				{ return aHighlightHdl; }

	void				SetSelectHdl( const Link& rLink )		{ aSelectHdl = rLink; }
	const Link& 		GetSelectHdl() const					{ return aSelectHdl; }

	void				SetLogo( const MenuLogo& rLogo );
	void				SetLogo();
	sal_Bool				HasLogo() const { return pLogo ? sal_True : sal_False; }
	MenuLogo			GetLogo() const;

    void                AddEventListener( const Link& rEventListener );
    void                RemoveEventListener( const Link& rEventListener );
    //void                AddChildEventListener( const Link& rEventListener );
    //void                RemoveChildEventListener( const Link& rEventListener );

	Menu&				operator =( const Menu& rMenu );

	// Fuer Menu-'Funktionen'
	MenuItemList*		GetItemList() const 					{ return pItemList; }

    // returns the system's menu handle if native menues are supported
    // pData must point to a SystemMenuData structure
    sal_Bool                GetSystemMenuData( SystemMenuData* pData ) const;

    // accessibility helpers

    // gets the displayed text
    String GetDisplayText() const;
    // returns the bounding box for the character at index nIndex
	// where nIndex is relative to the starting index of the item
    // with id nItemId (in coordinates of the displaying window)
    Rectangle GetCharacterBounds( sal_uInt16 nItemId, long nIndex ) const;
    // -1 is returned if no character is at that point
    // if an index is found the corresponding item id is filled in (else 0)
    long GetIndexForPoint( const Point& rPoint, sal_uInt16& rItemID ) const;
    // returns the number of lines in the result of GetDisplayText()
    long GetLineCount() const;
    // returns the interval [start,end] of line nLine
    // returns [-1,-1] for an invalid line
    Pair GetLineStartEnd( long nLine ) const;
    // like GetLineStartEnd but first finds the line number for the item
    Pair GetItemStartEnd( sal_uInt16 nItemId ) const;
    // returns the item id for line nLine or 0 if nLine is invalid
    sal_uInt16 GetDisplayItemId( long nLine ) const;
    // returns the bounding rectangle for an item at pos nItemPos
    Rectangle GetBoundingRectangle( sal_uInt16 nItemPos ) const;
    sal_Bool ConvertPoint( Point& rPoint, Window* pReferenceWindow ) const;

    ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible > GetAccessible();
	void SetAccessible( const ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible >& rxAccessible );

    // gets the activation key of the specified item
    KeyEvent GetActivationKey( sal_uInt16 nItemId ) const;

	Window* 			GetWindow() const { return pWindow; }

	void				SetAccessibleName( sal_uInt16 nItemId, const XubString& rStr );
	XubString			GetAccessibleName( sal_uInt16 nItemId ) const;

	void				SetAccessibleDescription( sal_uInt16 nItemId, const XubString& rStr );
	XubString			GetAccessibleDescription( sal_uInt16 nItemId ) const;
	Menu* GetStartedFromMenu(){ return pStartedFrom ;}

    // returns whether the item a position nItemPos is highlighted or not.
    bool  IsHighlighted( sal_uInt16 nItemPos ) const;

    void                HighlightItem( sal_uInt16 nItemPos );
    void                DeHighlight() { HighlightItem( 0xFFFF ); } // MENUITEMPOS_INVALID


    void doLazyDelete();
};

// -----------
// - MenuBar -
// -----------

class VCL_DLLPUBLIC MenuBar : public Menu
{
	Link				maCloserHdl;
	Link				maFloatHdl;
	Link				maHideHdl;
	sal_Bool				mbCloserVisible;
	sal_Bool				mbFloatBtnVisible;
	sal_Bool				mbHideBtnVisible;
	sal_Bool				mbDisplayable;

//#if 0 // _SOLAR__PRIVATE
	friend class Application;
	friend class Menu;
	friend class MenuBarWindow;
	friend class MenuFloatingWindow;
	friend class SystemWindow;

	SAL_DLLPRIVATE static Window*	ImplCreate( Window* pParent, Window* pWindow, MenuBar* pMenu );
	SAL_DLLPRIVATE static void 		ImplDestroy( MenuBar* pMenu, sal_Bool bDelete );
	SAL_DLLPRIVATE sal_Bool				ImplHandleKeyEvent( const KeyEvent& rKEvent, sal_Bool bFromMenu = sal_True );
//#endif

public:
						MenuBar();
	explicit			MenuBar( const ResId& );
						MenuBar( const MenuBar& rMenu );
	virtual				~MenuBar();

	MenuBar&			operator =( const MenuBar& rMenu );

	void				ShowCloser( sal_Bool bShow = sal_True );
	sal_Bool				HasCloser() const { return mbCloserVisible; }
	void				ShowFloatButton( sal_Bool bShow = sal_True );
	sal_Bool				HasFloatButton() const { return mbFloatBtnVisible; }
	void				ShowHideButton( sal_Bool bShow = sal_True );
	sal_Bool				HasHideButton() const { return mbHideBtnVisible; }
	void				ShowButtons( sal_Bool bClose, sal_Bool bFloat, sal_Bool bHide );

	void				SelectEntry( sal_uInt16 nId );
    sal_Bool                HandleMenuActivateEvent( Menu *pMenu ) const;
    sal_Bool                HandleMenuDeActivateEvent( Menu *pMenu ) const;
    sal_Bool                HandleMenuHighlightEvent( Menu *pMenu, sal_uInt16 nEventId ) const;
    sal_Bool                HandleMenuCommandEvent( Menu *pMenu, sal_uInt16 nEventId ) const;
    sal_Bool                HandleMenuButtonEvent( Menu *pMenu, sal_uInt16 nEventId ) const;

	void				SetCloserHdl( const Link& rLink )			{ maCloserHdl = rLink; }
	const Link& 		GetCloserHdl() const						{ return maCloserHdl; }
	void				SetFloatButtonClickHdl( const Link& rLink ) { maFloatHdl = rLink; }
	const Link& 		GetFloatButtonClickHdl() const				{ return maFloatHdl; }
	void				SetHideButtonClickHdl( const Link& rLink )	{ maHideHdl = rLink; }
	const Link& 		GetHideButtonClickHdl() const				{ return maHideHdl; }

    //  - by default a menubar is displayable
    //  - if a menubar is not displayable, its MenuBarWindow will never be shown
    //    and it will be hidden if it was visible before
    //  - note: if a menubar is diplayable, this does not necessarily mean that it is currently visible
    void                SetDisplayable( sal_Bool bDisplayable );
    sal_Bool                IsDisplayable() const                       { return mbDisplayable; }

    struct MenuBarButtonCallbackArg
    {
        sal_uInt16      nId;             // Id of the button
        bool        bHighlight;      // highlight on/off
        MenuBar*    pMenuBar;        // menubar the button belongs to
    };
    // add an arbitrary button to the menubar (will appear next to closer)
    // passed link will be call with a MenuBarButtonCallbackArg on press
    sal_uInt16              AddMenuBarButton( const Image&, const Link&, sal_uInt16 nPos = 0 );
    // add an arbitrary button to the menubar (will appear next to closer)
    // passed link will be call with a MenuBarButtonCallbackArg on press
    // passed string will be set as tooltip
    sal_uInt16              AddMenuBarButton( const Image&, const Link&, const String&, sal_uInt16 nPos = 0 );
    // set the highlight link for additional button with ID nId
    // highlight link will be called with a MenuBarButtonHighlightArg
    // the bHighlight member of that struct shall contain the new state
    void                SetMenuBarButtonHighlightHdl( sal_uInt16 nId, const Link& );
    // returns the rectangle occupied by the additional button named nId
    // coordinates are relative to the systemwindiow the menubar is attached to
    // if the menubar is unattached an empty rectangle is returned
    Rectangle           GetMenuBarButtonRectPixel( sal_uInt16 nId );
    void                RemoveMenuBarButton( sal_uInt16 nId );
};

inline MenuBar& MenuBar::operator =( const MenuBar& rMenu )
{
	Menu::operator =( rMenu );
	return *this;
}


// -------------
// - PopupMenu -
// -------------

class VCL_DLLPUBLIC PopupMenu : public Menu
{
	friend class Menu;
	friend class MenuFloatingWindow;
	friend class MenuBarWindow;
    friend struct MenuItemData;

private:
	Menu**				pRefAutoSubMenu;    // keeps track if a pointer to this Menu is stored in the MenuItemData

	SAL_DLLPRIVATE MenuFloatingWindow*   ImplGetFloatingWindow() const { return (MenuFloatingWindow*)Menu::ImplGetWindow(); }

protected:
	SAL_DLLPRIVATE sal_uInt16                ImplExecute( Window* pWindow, const Rectangle& rRect, sal_uLong nPopupFlags, Menu* pStaredFrom, sal_Bool bPreSelectFirst );
	SAL_DLLPRIVATE long				     ImplCalcHeight( sal_uInt16 nEntries ) const;
	SAL_DLLPRIVATE sal_uInt16				 ImplCalcVisEntries( long nMaxHeight, sal_uInt16 nStartEntry = 0, sal_uInt16* pLastVisible = NULL ) const;

public:
						PopupMenu();
						PopupMenu( const PopupMenu& rMenu );
	explicit			PopupMenu( const ResId& );
	virtual				~PopupMenu();

	void				SetText( const XubString& rTitle )	{ aTitleText = rTitle; }
	const XubString&	GetText() const 					{ return aTitleText; }

	sal_uInt16				Execute( Window* pWindow, const Point& rPopupPos );
	sal_uInt16				Execute( Window* pWindow, const Rectangle& rRect, sal_uInt16 nFlags = 0 );

	// Fuer das TestTool
	void				EndExecute( sal_uInt16 nSelect = 0 );
	void				SelectEntry( sal_uInt16 nId );
    void                SetSelectedEntry( sal_uInt16 nId ); // for use by native submenu only

	static sal_Bool 		IsInExecute();
	static PopupMenu*	GetActivePopupMenu();

	PopupMenu&			operator =( const PopupMenu& rMenu );
};

inline PopupMenu& PopupMenu::operator =( const PopupMenu& rMenu )
{
	Menu::operator =( rMenu );
	return *this;
}

#endif // _SV_MENU_HXX