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+/* -*- 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 TransferableHelper
+ {
+ 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.
+ */
+ ODataAccessObjectTransferable(
+ const OUString& _rDatasourceOrLocation
+ ,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.
+ */
+ ODataAccessObjectTransferable(
+ const OUString& _rDatasourceOrLocation
+ ,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
+ );
+
+ /** 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: */