268 lines
11 KiB
C++
268 lines
11 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_SVX_SOURCE_INC_FMEXCH_HXX
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#define INCLUDED_SVX_SOURCE_INC_FMEXCH_HXX
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#include <comphelper/stl_types.hxx>
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#include <svtools/transfer.hxx>
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#include <com/sun/star/uno/Sequence.hxx>
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#include <com/sun/star/container/XNameContainer.hpp>
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#include <com/sun/star/form/XForms.hpp>
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#include <tools/link.hxx>
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#include <svx/svxdllapi.h>
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class SvTreeListEntry;
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//========================================================================
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class SvTreeListBox;
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//........................................................................
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namespace svxform
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{
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//........................................................................
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//====================================================================
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typedef ::std::set< SvTreeListEntry* > ListBoxEntrySet;
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//====================================================================
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//= OLocalExchange
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//====================================================================
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class SVX_DLLPUBLIC OLocalExchange : public TransferableHelper
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{
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private:
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Link m_aClipboardListener;
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sal_Bool m_bDragging : 1;
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sal_Bool m_bClipboardOwner : 1;
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public:
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class GrantAccess
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{
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friend class OLocalExchangeHelper;
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};
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public:
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OLocalExchange( );
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sal_Bool isDragging() const { return m_bDragging; }
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sal_Bool isClipboardOwner() const { return m_bClipboardOwner; }
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void startDrag( Window* pWindow, sal_Int8 nDragSourceActions, const GrantAccess& );
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void copyToClipboard( Window* _pWindow, const GrantAccess& );
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void setClipboardListener( const Link& _rListener ) { m_aClipboardListener = _rListener; }
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void clear();
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static sal_Bool hasFormat( const DataFlavorExVector& _rFormats, sal_uInt32 _nFormatId );
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protected:
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// XClipboardOwner
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virtual void SAL_CALL lostOwnership( const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::clipboard::XClipboard >& _rxClipboard, const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >& _rxTrans ) throw(::com::sun::star::uno::RuntimeException);
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// TransferableHelper
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virtual void DragFinished( sal_Int8 nDropAction );
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virtual sal_Bool GetData( const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
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private:
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void StartDrag( Window* pWindow, sal_Int8 nDragSourceActions, sal_Int32 nDragPointer = DND_POINTER_NONE, sal_Int32 nDragImage = DND_IMAGE_NONE )
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{ // don't allow this base class method to be called from outside
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TransferableHelper::StartDrag(pWindow, nDragSourceActions, nDragPointer, nDragImage);
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}
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};
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//====================================================================
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//= OLocalExchangeHelper
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//====================================================================
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/// a helper for navigator windows (SvTreeListBox'es) which allow DnD within themself
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class SVX_DLLPUBLIC OLocalExchangeHelper
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{
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protected:
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Window* m_pDragSource;
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OLocalExchange* m_pTransferable;
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public:
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OLocalExchangeHelper( Window* _pDragSource );
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virtual ~OLocalExchangeHelper();
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void prepareDrag( );
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void startDrag( sal_Int8 nDragSourceActions );
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void copyToClipboard( ) const;
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inline sal_Bool isDragSource() const { return m_pTransferable && m_pTransferable->isDragging(); }
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inline sal_Bool isClipboardOwner() const { return m_pTransferable && m_pTransferable->isClipboardOwner(); }
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inline sal_Bool isDataExchangeActive( ) const { return isDragSource() || isClipboardOwner(); }
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inline void clear() { if ( isDataExchangeActive() ) m_pTransferable->clear(); }
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SVX_DLLPRIVATE void setClipboardListener( const Link& _rListener ) { if ( m_pTransferable ) m_pTransferable->setClipboardListener( _rListener ); }
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protected:
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SVX_DLLPRIVATE virtual OLocalExchange* createExchange() const = 0;
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protected:
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SVX_DLLPRIVATE void implReset();
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};
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//====================================================================
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//= OControlTransferData
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//====================================================================
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class OControlTransferData
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{
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private:
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typedef ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< sal_uInt32 > > ControlPaths;
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private:
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DataFlavorExVector m_aCurrentFormats;
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protected:
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ListBoxEntrySet m_aSelectedEntries;
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ControlPaths m_aControlPaths;
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::com::sun::star::uno::Sequence< ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > >
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m_aHiddenControlModels;
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::com::sun::star::uno::Reference< ::com::sun::star::form::XForms >
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m_xFormsRoot; // the root of the forms collection where the entries we represent reside
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// this uniquely identifies the page and the document
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SvTreeListEntry* m_pFocusEntry;
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protected:
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// updates m_aCurrentFormats with all formats we currently could supply
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void updateFormats( );
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public:
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OControlTransferData( );
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// ctor to construct the data from an arbitrary Transferable (usually clipboard data)
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OControlTransferData(
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const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >& _rxTransferable
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);
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inline const DataFlavorExVector& GetDataFlavorExVector() const;
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void addSelectedEntry( SvTreeListEntry* _pEntry );
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void setFocusEntry( SvTreeListEntry* _pFocusEntry );
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/** notifies the data transfer object that a certain entry has been removed from the owning tree
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In case the removed entry is part of the transfer object's selection, the entry is removed from
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the selection.
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@param _pEntry
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@return the number of entries remaining in the selection.
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*/
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size_t onEntryRemoved( SvTreeListEntry* _pEntry );
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void setFormsRoot(
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const ::com::sun::star::uno::Reference< ::com::sun::star::form::XForms >& _rxFormsRoot
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) { m_xFormsRoot = _rxFormsRoot; }
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void buildPathFormat(SvTreeListBox* pTreeBox, SvTreeListEntry* pRoot);
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// baut aus m_aSelectedEntries m_aControlPaths auf
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// (es wird davon ausgegangen, dass die Eintraege in m_aSelectedEntries sortiert sind in Bezug auf die Nachbar-Beziehung)
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void buildListFromPath(SvTreeListBox* pTreeBox, SvTreeListEntry* pRoot);
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// der umgekehrte Weg : wirft alles aus m_aSelectedEntries weg und baut es mittels m_aControlPaths neu auf
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void addHiddenControlsFormat(const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > > seqInterfaces);
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// fuegt ein SVX_FML_HIDDEN_CONTROLS-Format hinzu und merk sich dafuer die uebergebenen Interfaces
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// (es erfolgt KEINE Ueberpruefung, ob dadurch auch tatsaechlich nur hidden Controls bezeichnet werden, dass muss der
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// Aufrufer sicherstellen)
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SvTreeListEntry* focused() const { return m_pFocusEntry; }
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const ListBoxEntrySet& selected() const { return m_aSelectedEntries; }
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::com::sun::star::uno::Sequence< ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > >
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hiddenControls() const { return m_aHiddenControlModels; }
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::com::sun::star::uno::Reference< ::com::sun::star::form::XForms >
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getFormsRoot() const { return m_xFormsRoot; }
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};
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//====================================================================
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inline const DataFlavorExVector& OControlTransferData::GetDataFlavorExVector() const
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{
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const_cast< OControlTransferData* >( this )->updateFormats( );
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return m_aCurrentFormats;
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}
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//====================================================================
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//= OControlExchange
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//====================================================================
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class OControlExchange : public OLocalExchange, public OControlTransferData
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{
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public:
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OControlExchange( );
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public:
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static sal_uInt32 getFieldExchangeFormatId( );
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static sal_uInt32 getControlPathFormatId( );
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static sal_uInt32 getHiddenControlModelsFormatId( );
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inline static sal_Bool hasFieldExchangeFormat( const DataFlavorExVector& _rFormats );
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inline static sal_Bool hasControlPathFormat( const DataFlavorExVector& _rFormats );
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inline static sal_Bool hasHiddenControlModelsFormat( const DataFlavorExVector& _rFormats );
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protected:
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virtual sal_Bool GetData( const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
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virtual void AddSupportedFormats();
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};
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//====================================================================
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//= OControlExchangeHelper
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//====================================================================
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class OControlExchangeHelper : public OLocalExchangeHelper
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{
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public:
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OControlExchangeHelper(Window* _pDragSource) : OLocalExchangeHelper(_pDragSource) { }
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OControlExchange* operator->() const { return static_cast< OControlExchange* >( m_pTransferable ); }
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OControlExchange& operator*() const { return *static_cast< OControlExchange* >( m_pTransferable ); }
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protected:
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virtual OLocalExchange* createExchange() const;
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};
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//====================================================================
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//====================================================================
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inline sal_Bool OControlExchange::hasFieldExchangeFormat( const DataFlavorExVector& _rFormats )
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{
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return hasFormat( _rFormats, getFieldExchangeFormatId() );
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}
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inline sal_Bool OControlExchange::hasControlPathFormat( const DataFlavorExVector& _rFormats )
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{
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return hasFormat( _rFormats, getControlPathFormatId() );
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}
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inline sal_Bool OControlExchange::hasHiddenControlModelsFormat( const DataFlavorExVector& _rFormats )
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{
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return hasFormat( _rFormats, getHiddenControlModelsFormatId() );
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}
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//........................................................................
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} // namespace svxform
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//........................................................................
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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