libreoffice/svx/source/inc/fmexpl.hxx

/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: fmexpl.hxx,v $
 * $Revision: 1.18 $
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/
#ifndef _SVX_FMEXPL_HXX
#define _SVX_FMEXPL_HXX

#include <svtools/lstner.hxx>
#include <svtools/brdcst.hxx>
#include <vcl/window.hxx>
#include <sfx2/childwin.hxx>
#include <svtools/poolitem.hxx>
#include <sfx2/bindings.hxx>
#include <sfx2/dockwin.hxx>
#include <sfx2/ctrlitem.hxx>
#include <vcl/image.hxx>
#include <com/sun/star/container/XNameContainer.hpp>
#include <com/sun/star/form/XForm.hpp>
#include <com/sun/star/form/XFormComponent.hpp>
#include <com/sun/star/beans/PropertyChangeEvent.hpp>
#include <com/sun/star/container/XContainerListener.hpp>
#include <com/sun/star/container/XContainer.hpp>

#include <svtools/svtreebx.hxx>

#include <vcl/dialog.hxx>
#include <vcl/group.hxx>
#include <vcl/button.hxx>
#include <vcl/fixed.hxx>
#include <vcl/edit.hxx>
#include <vcl/dockwin.hxx>
#include <svx/fmview.hxx>

#include "fmexch.hxx"
#include "fmtools.hxx"

class SdrObjListIter;
class FmFormShell;
class SdrObject;
class FmFormModel;
class FmFormView;
class SdrMarkList;

//========================================================================
class FmEntryData;
class FmNavInsertedHint : public SfxHint
{
    FmEntryData* pEntryData;
    sal_uInt32 nPos;

public:
    TYPEINFO();
    FmNavInsertedHint( FmEntryData* pInsertedEntryData, sal_uInt32 nRelPos );
    virtual ~FmNavInsertedHint();

    FmEntryData* GetEntryData() const { return pEntryData; }
    sal_uInt32 GetRelPos() const { return nPos; }
};

//========================================================================
class FmNavModelReplacedHint : public SfxHint
{
    FmEntryData* pEntryData;    // die Daten des Eintrages, der ein neues Model bekommen hat

public:
    TYPEINFO();
    FmNavModelReplacedHint( FmEntryData* pAffectedEntryData );
    virtual ~FmNavModelReplacedHint();

    FmEntryData* GetEntryData() const { return pEntryData; }
};

//========================================================================
class FmNavRemovedHint : public SfxHint
{
    FmEntryData* pEntryData;

public:
    TYPEINFO();
    FmNavRemovedHint( FmEntryData* pInsertedEntryData );
    virtual ~FmNavRemovedHint();

    FmEntryData* GetEntryData() const { return pEntryData; }
};

//========================================================================
class FmNavNameChangedHint : public SfxHint
{
    FmEntryData*    pEntryData;
    ::rtl::OUString          aNewName;

public:
    TYPEINFO();
    FmNavNameChangedHint( FmEntryData* pData, const ::rtl::OUString& rNewName );
    virtual ~FmNavNameChangedHint();

    FmEntryData*    GetEntryData() const { return pEntryData; }
    ::rtl::OUString          GetNewName() const { return aNewName; }
};

//========================================================================
class FmNavClearedHint : public SfxHint
{
public:
    TYPEINFO();
    FmNavClearedHint();
    virtual ~FmNavClearedHint();
};

//========================================================================
class FmNavViewMarksChanged : public SfxHint
{
    FmFormView* pView;
public:
    TYPEINFO();
    FmNavViewMarksChanged(FmFormView* pWhichView) { pView = pWhichView; }
    virtual ~FmNavViewMarksChanged() {}

    FmFormView* GetAffectedView() { return pView; }
};

//========================================================================
class FmEntryDataList;
class FmEntryData
{
private:
    ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >       m_xNormalizedIFace;
    ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet >   m_xProperties;
    ::com::sun::star::uno::Reference< ::com::sun::star::container::XChild >     m_xChild;

protected:
    Image               m_aNormalImage;
    Image               m_aHCImage;
    ::rtl::OUString     aText;

    FmEntryDataList*    pChildList;
    FmEntryData*        pParent;

protected:
    void    newObject( const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& _rxIFace );

public:
    TYPEINFO();

    FmEntryData( FmEntryData* pParentData, const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& _rIFace );
    FmEntryData( const FmEntryData& rEntryData );
    virtual ~FmEntryData();

    void    Clear();
    void    SetText( const ::rtl::OUString& rText ){ aText = rText; }
    void    SetParent( FmEntryData* pParentData ){ pParent = pParentData; }

    const Image&    GetNormalImage() const { return m_aNormalImage; }
    const Image&    GetHCImage() const { return m_aHCImage; }

    ::rtl::OUString          GetText() const { return aText; }
    FmEntryData*    GetParent() const { return pParent; }
    FmEntryDataList* GetChildList() const { return pChildList; }

    virtual sal_Bool IsEqualWithoutChilds( FmEntryData* pEntryData );
    virtual FmEntryData* Clone() = 0;

    // note that the interface returned is normalized, i.e. querying the given XInterface of the object
    // for XInterface must return the interface itself.
    const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& GetElement() const
    {
        return m_xNormalizedIFace;
    }

    const ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet >& GetPropertySet() const
    {
        return m_xProperties;
    }

    const ::com::sun::star::uno::Reference< ::com::sun::star::container::XChild >& GetChildIFace() const
    {
        return m_xChild;
    }
};

//========================================================================
DECLARE_LIST( FmEntryDataBaseList, FmEntryData* )

class FmEntryDataList : public FmEntryDataBaseList
{
public:
    FmEntryDataList();
    virtual ~FmEntryDataList();
};

//========================================================================
// FmNavRequestSelectHint - jemand teilt dem NavigatorTree mit, dass er bestimmte Eintraege selektieren soll

typedef FmEntryData* FmEntryDataPtr;
SV_DECL_PTRARR_SORT( FmEntryDataArray, FmEntryDataPtr, 16, 16 )

class FmNavRequestSelectHint : public SfxHint
{
    FmEntryDataArray    m_arredToSelect;
    sal_Bool                m_bMixedSelection;
public:
    TYPEINFO();
    FmNavRequestSelectHint() { }
    virtual ~FmNavRequestSelectHint() {}

    void SetMixedSelection(sal_Bool bMixedSelection) { m_bMixedSelection = bMixedSelection; }
    sal_Bool IsMixedSelection() { return m_bMixedSelection; }
    void AddItem(FmEntryData* pEntry) { m_arredToSelect.Insert(pEntry); }
    void ClearItems() { m_arredToSelect.Remove(sal_uInt16(0), m_arredToSelect.Count()); }
    FmEntryDataArray& GetItems() { return m_arredToSelect; }
};

//========================================================================
class FmFormData : public FmEntryData
{
    ::com::sun::star::uno::Reference< ::com::sun::star::form::XForm >           m_xForm;
    ::com::sun::star::uno::Reference< ::com::sun::star::container::XContainer > m_xContainer;

public:
    TYPEINFO();

    FmFormData(
        const ::com::sun::star::uno::Reference< ::com::sun::star::form::XForm >& _rxForm,
        const ImageList& _rNormalImages,
        const ImageList& _rHCImages,
        FmFormData* _pParent = NULL
    );

    FmFormData( const FmFormData& rFormData );
    virtual ~FmFormData();

    void SetForm( const ::com::sun::star::uno::Reference< ::com::sun::star::form::XForm >& xForm )
    {
        m_xForm = xForm;
        m_xContainer = m_xContainer.query( m_xForm );
        newObject( m_xForm );
    }

    const ::com::sun::star::uno::Reference< ::com::sun::star::form::XForm >& GetFormIface() const { return m_xForm; }
    const ::com::sun::star::uno::Reference< ::com::sun::star::container::XContainer >& GetContainer() const { return m_xContainer; }

    virtual sal_Bool IsEqualWithoutChilds( FmEntryData* pEntryData );
    virtual FmEntryData* Clone();
};


//========================================================================
class FmControlData : public FmEntryData
{
    ::com::sun::star::uno::Reference< ::com::sun::star::form::XFormComponent >  m_xFormComponent;

    Image GetImage(const ImageList& ilNavigatorImages) const;

public:
    TYPEINFO();

    FmControlData(
        const ::com::sun::star::uno::Reference< ::com::sun::star::form::XFormComponent >& _rxComponent,
        const ImageList& _rNormalImages,
        const ImageList& _rHCImages,
        FmFormData* _pParent
    );
    FmControlData( const FmControlData& rControlData );
    virtual ~FmControlData();

    const ::com::sun::star::uno::Reference< ::com::sun::star::form::XFormComponent >& GetFormComponent() const { return m_xFormComponent; }
    virtual sal_Bool IsEqualWithoutChilds( FmEntryData* pEntryData );
    virtual FmEntryData* Clone();

    void ModelReplaced(
        const ::com::sun::star::uno::Reference< ::com::sun::star::form::XFormComponent >& _rxNew,
        const ImageList& _rNormalImages,
        const ImageList& _rHCImages
    );
};


//========================================================================
//............................................................................
namespace svxform
{
//............................................................................

    class NavigatorTreeModel;
    //========================================================================
    // class OFormComponentObserver
    //========================================================================
    class OFormComponentObserver
        :public ::cppu::WeakImplHelper2 <   ::com::sun::star::beans::XPropertyChangeListener
                                        ,   ::com::sun::star::container::XContainerListener
                                        >
    {
        ::svxform::NavigatorTreeModel*  m_pNavModel;
        sal_uInt32 m_nLocks;
        sal_Bool   m_bCanUndo;

    public:
        OFormComponentObserver( ::svxform::NavigatorTreeModel* pModel );

    // XEventListenerListener
        virtual void SAL_CALL disposing(const ::com::sun::star::lang::EventObject& Source) throw(::com::sun::star::uno::RuntimeException);

    // ::com::sun::star::beans::XPropertyChangeListener
        virtual void SAL_CALL propertyChange(const ::com::sun::star::beans::PropertyChangeEvent& evt) throw(::com::sun::star::uno::RuntimeException);

    // ::com::sun::star::container::XContainerListener

        virtual void SAL_CALL elementInserted(const  ::com::sun::star::container::ContainerEvent& rEvent) throw(::com::sun::star::uno::RuntimeException);
        virtual void SAL_CALL elementReplaced(const  ::com::sun::star::container::ContainerEvent& rEvent) throw(::com::sun::star::uno::RuntimeException);
        virtual void SAL_CALL elementRemoved(const  ::com::sun::star::container::ContainerEvent& rEvent) throw(::com::sun::star::uno::RuntimeException);

        void Lock() { m_nLocks++; }
        void UnLock() { m_nLocks--; }
        sal_Bool IsLocked() const { return m_nLocks != 0; }
        sal_Bool CanUndo() const { return m_bCanUndo; }
        void ReleaseModel() { m_pNavModel = NULL; }
    protected:
        void Insert(const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& xIface, sal_Int32 nIndex);
        void Remove( const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& _rxElement );
    };

    //========================================================================
    //= NavigatorTreeModel
    //========================================================================
    class NavigatorTreeModel : public SfxBroadcaster
                           ,public SfxListener
    {
        friend class NavigatorTree;
        friend class OFormComponentObserver;

        FmEntryDataList*            m_pRootList;
        FmFormShell*                m_pFormShell;
        FmFormPage*                 m_pFormPage;
        FmFormModel*                m_pFormModel;
        OFormComponentObserver*     m_pPropChangeList;

        ImageList                   m_aNormalImages;
        ImageList                   m_aHCImages;

        void UpdateContent( const ::com::sun::star::uno::Reference< ::com::sun::star::container::XNameContainer >& xForms );
        FmControlData* CreateControlData( ::com::sun::star::form::XFormComponent* pFormComponent );

        void InsertForm(const ::com::sun::star::uno::Reference< ::com::sun::star::form::XForm >& xForm, sal_uInt32 nRelPos);
        void RemoveForm(FmFormData* pFormData);

        void InsertFormComponent(const ::com::sun::star::uno::Reference< ::com::sun::star::form::XFormComponent >& xComp, sal_uInt32 nRelPos);
        void RemoveFormComponent(FmControlData* pControlData);
        void InsertSdrObj(const SdrObject* pSdrObj);
        void RemoveSdrObj(const SdrObject* pSdrObj);

        void ReplaceFormComponent(const ::com::sun::star::uno::Reference< ::com::sun::star::form::XFormComponent >& xOld, const ::com::sun::star::uno::Reference< ::com::sun::star::form::XFormComponent >& xNew);

        void BroadcastMarkedObjects(const SdrMarkList& mlMarked);
            // einen RequestSelectHint mit den aktuell markierten Objekten broadcasten
        sal_Bool InsertFormComponent(FmNavRequestSelectHint& rHint, SdrObject* pObject);
            // ist ein Helper fuer vorherige, managet das Abteigen in SdrObjGroups
            // Rueckgabe sal_True, wenn das Objekt eine FormComponent ist (oder rekursiv nur aus solchen besteht)

    public:
        NavigatorTreeModel( const ImageList& _rNormalImages, const ImageList& _rHCImages );
        virtual ~NavigatorTreeModel();

        void FillBranch( FmFormData* pParentData );
        void ClearBranch( FmFormData* pParentData );
        void UpdateContent( FmFormShell* pNewShell );

        void Insert( FmEntryData* pEntryData, ULONG nRelPos = LIST_APPEND,
                                              sal_Bool bAlterModel = sal_False );
        void Remove( FmEntryData* pEntryData, sal_Bool bAlterModel = sal_False );

        sal_Bool Rename( FmEntryData* pEntryData, const ::rtl::OUString& rNewText );
        sal_Bool IsNameAlreadyDefined( const ::rtl::OUString& rName, FmFormData* pParentData );
        void Clear();
        sal_Bool CheckEntry( FmEntryData* pEntryData );
        void SetModified( sal_Bool bMod=sal_True );

        ::com::sun::star::uno::Reference< ::com::sun::star::container::XNameContainer >    GetForms() const;
        FmFormShell*        GetFormShell() const { return m_pFormShell; }
        FmFormPage*         GetFormPage() const { return m_pFormPage; }
        FmEntryData*        FindData( const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& xElement, FmEntryDataList* pDataList, sal_Bool bRecurs=sal_True );
        FmEntryData*        FindData( const ::rtl::OUString& rText, FmFormData* pParentData, sal_Bool bRecurs=sal_True );
        FmEntryDataList*    GetRootList() const { return m_pRootList; }
        ::com::sun::star::uno::Reference< ::com::sun::star::container::XIndexContainer >   GetFormComponents( FmFormData* pParentFormData );
        SdrObject*          GetSdrObj( FmControlData* pControlData );
        SdrObject*          Search(SdrObjListIter& rIter, const ::com::sun::star::uno::Reference< ::com::sun::star::form::XFormComponent >& xComp);

        virtual void Notify( SfxBroadcaster& rBC, const SfxHint& rHint );
    };

    //========================================================================
    typedef SvLBoxEntry* SvLBoxEntryPtr;
    SV_DECL_PTRARR_SORT( SvLBoxEntrySortedArray, SvLBoxEntryPtr, 16, 16 )

    class NavigatorTree : public SvTreeListBox, public SfxListener
    {
        enum DROP_ACTION        { DA_SCROLLUP, DA_SCROLLDOWN, DA_EXPANDNODE };
        enum SELDATA_ITEMS      { SDI_DIRTY, SDI_ALL, SDI_NORMALIZED, SDI_NORMALIZED_FORMARK };

        // beim Droppen will ich scrollen und Folder aufklappen koennen, dafuer :
        AutoTimer           m_aDropActionTimer;
        Timer               m_aSynchronizeTimer;
        // die Meta-Daten ueber meine aktuelle Selektion
        SvLBoxEntrySortedArray  m_arrCurrentSelection;
        // the entries which, in the view, are currently marked as "cut" (painted semi-transparent)
        ListBoxEntrySet         m_aCutEntries;
        // die Images, die ich brauche (und an FormDatas und EntryDatas weiterreiche)
        ImageList           m_aNavigatorImages;
        ImageList           m_aNavigatorImagesHC;

        ::svxform::OControlExchangeHelper   m_aControlExchange;

        ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >    m_xORB;
        NavigatorTreeModel* m_pNavModel;
        SvLBoxEntry*        m_pRootEntry;
        SvLBoxEntry*        m_pEditEntry;

        ULONG               nEditEvent;

        SELDATA_ITEMS       m_sdiState;
        Point               m_aTimerTriggered;      // die Position, an der der DropTimer angeschaltet wurde
        DROP_ACTION         m_aDropActionType;

        sal_uInt16          m_nSelectLock;
        sal_uInt16          m_nFormsSelected;
        sal_uInt16          m_nControlsSelected;
        sal_uInt16          m_nHiddenControls;      // (die Zahl geht in m_nControlsSelected mit ein)

        unsigned short      m_aTimerCounter;

        sal_Bool            m_bDragDataDirty        : 1;    // dito
        sal_Bool            m_bPrevSelectionMixed   : 1;
        sal_Bool            m_bMarkingObjects       : 1;    // wenn das sal_True ist, brauche ich auf die RequestSelectHints nicht reagieren
        sal_Bool            m_bRootSelected         : 1;
        sal_Bool            m_bInitialUpdate        : 1;   // bin ich das erste Mal im UpdateContent ?
        sal_Bool            m_bKeyboardCut          : 1;


        void            UpdateContent();
        sal_Bool        IsDeleteAllowed();
        FmControlData*  NewControl( const ::rtl::OUString& rServiceName, SvLBoxEntry* pParentEntry, sal_Bool bEditName = sal_True );
        void            NewForm( SvLBoxEntry* pParentEntry );
        SvLBoxEntry*    Insert( FmEntryData* pEntryData, ULONG nRelPos=LIST_APPEND );
        void            Remove( FmEntryData* pEntryData );


        void CollectSelectionData(SELDATA_ITEMS sdiHow);
            // sammelt in m_arrCurrentSelection die aktuell selektierten Eintraege, normalisiert die Liste wenn verlangt
            // SDI_NORMALIZED bedeutet einfach, dass alle Eintraege, die schon einen selektierten Vorfahren haben, nicht mit gesammelt
            // werden.
            // SDI_NORMALIZED_FORMARK bedeutet, dass wie bei SDI_NORMALIZED verfahren wird, aber Eintraege, deren direktes Elter nicht
            // selektiert ist, aufgenommen werden (unabhaengig vom Status weiterer Vorfahren), desgleichen Formulare, die selektiert sind,
            // unabhaengig vom Status irgendwelcher Vorfahren
            // Bei beiden Normalized-Modi enthalten die m_nFormsSelected, ... die richtige Anzahl, auch wenn nicht alle dieser Eintraege
            // in m_arrCurrentSelection landen.
            // SDI_DIRTY ist natuerlich nicht erlaubt als Parameter

        // ein einziges Interface fuer alle selektierten Eintraege zusammensetzen
        void    ShowSelectionProperties(sal_Bool bForce = sal_False);
        // alle selektierten Elemnte loeschen
        void    DeleteSelection();

        void SynchronizeSelection(FmEntryDataArray& arredToSelect);
            // nach dem Aufruf dieser Methode sind genau die Eintraege selektiert, die in dem Array bezeichnet sind
        void SynchronizeSelection();
            // macht das selbe, nimmt die MarkList der ::com::sun::star::sdbcx::View
        void SynchronizeMarkList();
            // umgekehrte Richtung von SynchronizeMarkList : markiert in der ::com::sun::star::sdbcx::View alle der aktuellen Selektion entsprechenden Controls

        // im Select aktualisiere ich normalerweise die Marklist der zugehoerigen ::com::sun::star::sdbcx::View, mit folgenden Funktionen
        // kann ich das Locking dieses Verhaltens steuern
        void LockSelectionHandling() { ++m_nSelectLock; }
        void UnlockSelectionHandling() { --m_nSelectLock; }
        sal_Bool IsSelectionHandlingLocked() const { return m_nSelectLock>0; }

        sal_Bool IsHiddenControl(FmEntryData* pEntryData);

        DECL_LINK( OnEdit, void* );
        DECL_LINK( OnDropActionTimer, void* );

        DECL_LINK(OnEntrySelDesel, NavigatorTree*);
        DECL_LINK(OnSynchronizeTimer, void*);

        DECL_LINK( OnClipboardAction, void* );

    protected:
        virtual void    Command( const CommandEvent& rEvt );

        virtual sal_Int8    AcceptDrop( const AcceptDropEvent& rEvt );
        virtual sal_Int8    ExecuteDrop( const ExecuteDropEvent& rEvt );
        virtual void        StartDrag( sal_Int8 nAction, const Point& rPosPixel );

    public:
        NavigatorTree(const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >&   _xORB, Window* pParent );
        virtual ~NavigatorTree();

        void Clear();
        void UpdateContent( FmFormShell* pFormShell );
        void MarkViewObj( FmFormData* pFormData, sal_Bool bMark, sal_Bool bDeep = sal_False );
        void MarkViewObj( FmControlData* pControlData, sal_Bool bMarkHandles, sal_Bool bMark );
        void UnmarkAllViewObj();

        sal_Bool IsFormEntry( SvLBoxEntry* pEntry );
        sal_Bool IsFormComponentEntry( SvLBoxEntry* pEntry );

        ::rtl::OUString GenerateName( FmEntryData* pEntryData );

        NavigatorTreeModel*    GetNavModel() const { return m_pNavModel; }
        SvLBoxEntry*        FindEntry( FmEntryData* pEntryData );

        virtual sal_Bool EditedEntry( SvLBoxEntry* pEntry, const XubString& rNewText );
        virtual sal_Bool Select( SvLBoxEntry* pEntry, sal_Bool bSelect=sal_True );
        virtual sal_Bool EditingEntry( SvLBoxEntry* pEntry, Selection& );
        virtual void Notify( SfxBroadcaster& rBC, const SfxHint& rHint );
        virtual void KeyInput( const KeyEvent& rKEvt );

        virtual void ModelHasRemoved( SvListEntry* _pEntry );

        using SvTreeListBox::Insert;
        using SvTreeListBox::ExecuteDrop;
        using SvTreeListBox::Select;
        using SvTreeListBox::Notify;

    private:
        sal_Int8    implAcceptDataTransfer( const DataFlavorExVector& _rFlavors, sal_Int8 _nAction, const Point& _rDropPos, sal_Bool _bDnD );
        sal_Int8    implAcceptDataTransfer( const DataFlavorExVector& _rFlavors, sal_Int8 _nAction, SvLBoxEntry* _pTargetEntry, sal_Bool _bDnD );

        sal_Int8    implExecuteDataTransfer( const OControlTransferData& _rData, sal_Int8 _nAction, const Point& _rDropPos, sal_Bool _bDnD );
        sal_Int8    implExecuteDataTransfer( const OControlTransferData& _rData, sal_Int8 _nAction, SvLBoxEntry* _pTargetEntry, sal_Bool _bDnD );

        // check if a cut, copy, or drag operation can be started in the current situation
        sal_Bool    implAllowExchange( sal_Int8 _nAction, sal_Bool* _pHasNonHidden = NULL );
        // check if a paste with the current clipboard content can be accepted
        sal_Bool    implAcceptPaste( );

        // fills m_aControlExchange in preparation of a DnD or clipboard operation
        sal_Bool    implPrepareExchange( sal_Int8 _nAction );

        void        doPaste();
        void        doCopy();
        void        doCut();

        sal_Bool    doingKeyboardCut( ) const { return m_bKeyboardCut; }
    };

    //========================================================================
    class NavigatorFrame : public SfxDockingWindow, public SfxControllerItem
    {
    private:
        ::svxform::NavigatorTree* m_pNavigatorTree;

    protected:
        virtual void Resize();
        virtual sal_Bool Close();
        virtual void GetFocus();
        virtual Size CalcDockingSize( SfxChildAlignment );
        virtual SfxChildAlignment CheckAlignment( SfxChildAlignment, SfxChildAlignment );

        using SfxDockingWindow::StateChanged;

    public:
        NavigatorFrame( SfxBindings *pBindings, SfxChildWindow *pMgr,
                       Window* pParent );
        virtual ~NavigatorFrame();

        void UpdateContent( FmFormShell* pFormShell );
        void StateChanged( sal_uInt16 nSID, SfxItemState eState, const SfxPoolItem* pState );
        void FillInfo( SfxChildWinInfo& rInfo ) const;
    };

    //========================================================================
    class NavigatorFrameManager : public SfxChildWindow
    {
    public:
        NavigatorFrameManager( Window *pParent, sal_uInt16 nId, SfxBindings *pBindings,
                          SfxChildWinInfo *pInfo );
        SFX_DECL_CHILDWINDOW( NavigatorFrameManager );
    };

//............................................................................
}   // namespace svxform
//............................................................................

#endif // _SVX_FMEXPL_HXX