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| -rw-r--r-- | include/svx/dbaexchange.hxx | 277 |
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diff --git a/include/svx/dbaexchange.hxx b/include/svx/dbaexchange.hxx new file mode 100644 index 0000000000..c5a0193b88 --- /dev/null +++ b/include/svx/dbaexchange.hxx @@ -0,0 +1,277 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#ifndef INCLUDED_SVX_DBAEXCHANGE_HXX +#define INCLUDED_SVX_DBAEXCHANGE_HXX + +#include <sal/config.h> + +#include <o3tl/typed_flags_set.hxx> +#include <vcl/transfer.hxx> +#include <com/sun/star/beans/PropertyValue.hpp> +#include <svx/dataaccessdescriptor.hxx> +#include <com/sun/star/uno/Sequence.hxx> +#include <svx/svxdllapi.h> + +namespace com::sun::star::sdbc { class XConnection; } +namespace com::sun::star::beans { class XPropertySet; } + +// column transfer formats +enum class ColumnTransferFormatFlags +{ + FIELD_DESCRIPTOR = 0x01, // the field descriptor format + CONTROL_EXCHANGE = 0x02, // the control exchange format + COLUMN_DESCRIPTOR = 0x04, // data access descriptor for a column +}; +namespace o3tl +{ + template<> struct typed_flags<ColumnTransferFormatFlags> : is_typed_flags<ColumnTransferFormatFlags, 0x07> {}; +} + + +namespace svx +{ + + + //= OColumnTransferable + + class SAL_WARN_UNUSED SVXCORE_DLLPUBLIC OColumnTransferable final : public TransferDataContainer + { + public: + OColumnTransferable(ColumnTransferFormatFlags nFormats); + + /** construct the transferable from a data access descriptor + + Note that some of the aspects, in particular all which cannot be represented + as string, can only be transported via the CTF_COLUMN_DESCRIPTOR format. + + @param rDescriptor + The descriptor for the column. It must contain at least + <ul><li>information sufficient to create a connection, that is, either one of DataSource, DatabaseLocation, + ConnectionResource, and DataAccessDescriptorProperty::Connection</li> + <li>a Command</li> + <li>a CommandType</li> + <li>a ColumnName or ColumnObject</li> + </ul> + */ + void setDescriptor(const ODataAccessDescriptor& rDescriptor); + + + /** construct the transferable from a DatabaseForm component and a field name + + @param _rxForm + the form which is bound to the data source which's field is to be dragged + + @param _rFieldName + the name of the field to be dragged + + @param _rxColumn + the column object. Won't be used if <arg>_nFormats</arg> does not include the CTF_COLUMN_DESCRIPTOR + flag.<br/> + May be <NULL/>. + + @param _rxConnection + the connection the column belongs to. Won't be used if <arg>_nFormats</arg> does not include the CTF_COLUMN_DESCRIPTOR + flag.<br/> + May be <NULL/>. + + @param _nFormats + supported formats. Must be a combination of the CTF_XXX flags + */ + OColumnTransferable( + const css::uno::Reference< css::beans::XPropertySet >& _rxForm, + const OUString& _rFieldName, + const css::uno::Reference< css::beans::XPropertySet >& _rxColumn, + const css::uno::Reference< css::sdbc::XConnection >& _rxConnection, + ColumnTransferFormatFlags _nFormats + ); + + /** checks whether or not a column descriptor can be extracted from the data flavor vector given + @param _rFlavors + available flavors + @param _nFormats + formats to accept + */ + static bool canExtractColumnDescriptor(const DataFlavorExVector& _rFlavors, ColumnTransferFormatFlags _nFormats); + + /** extracts a column descriptor from the transferable given + */ + static bool extractColumnDescriptor( + const TransferableDataHelper& _rData + ,OUString& _rDatasource + ,OUString& _rDatabaseLocation + ,OUString& _rConnectionResource + ,sal_Int32& _nCommandType + ,OUString& _rCommand + ,OUString& _rFieldName + ); + + /** extracts a column descriptor from the transferable given + */ + static ODataAccessDescriptor + extractColumnDescriptor(const TransferableDataHelper& _rData); + + private: + // TransferableHelper overridables + virtual void AddSupportedFormats() override; + virtual bool GetData( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) override; + + static SotClipboardFormatId getDescriptorFormatId(); + + SVX_DLLPRIVATE void implConstruct( + const OUString& _rDatasource + ,const OUString& _rConnectionResource + ,const sal_Int32 _nCommandType + ,const OUString& _rCommand + ,const OUString& _rFieldName + ); + + ODataAccessDescriptor m_aDescriptor; + OUString m_sCompatibleFormat; + ColumnTransferFormatFlags m_nFormatFlags; + }; + + + //= ODataAccessObjectTransferable + + /** class for transferring data access objects (tables, queries, statements ...) + */ + class SAL_WARN_UNUSED SVXCORE_DLLPUBLIC ODataAccessObjectTransferable : public TransferDataContainer + { + ODataAccessDescriptor m_aDescriptor; + OUString m_sCompatibleObjectDescription; + // needed to provide a SotClipboardFormatId::SBA_DATAEXCHANGE format + + public: + /** should be used copying and the connection is needed. + @param _rDatasource + The data source name. + @param _nCommandType + The kind of command. @see com.sun.star.sdbc.CommandType + @param _rCommand + The command, either a name of a table or query or a SQL statement. + */ + void Update( + const OUString& _rDatasource, + const sal_Int32 _nCommandType, + const OUString& _rCommand, + const css::uno::Reference< css::sdbc::XConnection >& _rxConnection + ); + + /** should be used when copying a query object and no connection is available. + @param _rDatasource + The data source name. + @param _nCommandType + The kind of command. @see com.sun.star.sdbc.CommandType + @param _rCommand + The command, either a name of a table or query or a SQL statement. + */ + void Update( + const OUString& _rDatasource, + const sal_Int32 _nCommandType, + const OUString& _rCommand + ); + + /** with this ctor, only the object descriptor format will be provided + */ + ODataAccessObjectTransferable( + const css::uno::Reference< css::beans::XPropertySet >& _rxLivingForm + ); + + ODataAccessObjectTransferable(); + + /** checks whether or not an object descriptor can be extracted from the data flavor vector given + @param _rFlavors + available flavors + @param _nFormats + formats to accept + */ + static bool canExtractObjectDescriptor(const DataFlavorExVector& _rFlavors); + + /** extracts an object descriptor from the transferable given + */ + static ODataAccessDescriptor + extractObjectDescriptor(const TransferableDataHelper& _rData); + + protected: + virtual void AddSupportedFormats() override; + virtual bool GetData( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) override; + virtual void ObjectReleased() override; + + protected: + const ODataAccessDescriptor& getDescriptor() const { return m_aDescriptor; } + ODataAccessDescriptor& getDescriptor() { return m_aDescriptor; } + protected: + void addCompatibleSelectionDescription( + const css::uno::Sequence< css::uno::Any >& _rSelRows + ); + // normally, a derived class could simply access getDescriptor[DataAccessDescriptorProperty::Selection] and place the sequence therein + // but unfortunately, we have this damned compatible format, and this can't be accessed in + // derived classes (our class is the only one which should be contaminated with this) + + private: + SVX_DLLPRIVATE void construct( const OUString& _rDatasourceOrLocation + ,const OUString& _rConnectionResource + ,const sal_Int32 _nCommandType + ,const OUString& _rCommand + ,const css::uno::Reference< css::sdbc::XConnection >& _rxConnection + ,bool _bAddCommand + ,const OUString& _sActiveCommand); + }; + + + //= OMultiColumnTransferable + + /** class for transferring multiple columns + */ + class SAL_WARN_UNUSED SVXCORE_DLLPUBLIC OMultiColumnTransferable final : public TransferDataContainer + { + public: + OMultiColumnTransferable(); + + void setDescriptors(const css::uno::Sequence< css::beans::PropertyValue >& rDescriptors); + + /** checks whether or not an object descriptor can be extracted from the data flavor vector given + @param _rFlavors + available flavors + @param _nFormats + formats to accept + */ + static bool canExtractDescriptor(const DataFlavorExVector& _rFlavors); + + /** extracts an object descriptor from the transferable given + */ + static css::uno::Sequence< css::beans::PropertyValue > extractDescriptor(const TransferableDataHelper& _rData); + + private: + virtual void AddSupportedFormats() override; + virtual bool GetData( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) override; + virtual void ObjectReleased() override; + static SotClipboardFormatId getDescriptorFormatId(); + + css::uno::Sequence< css::beans::PropertyValue > m_aDescriptors; + }; + + +} + + +#endif // INCLUDED_SVX_DBAEXCHANGE_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |