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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #ifndef INCLUDED_SVX_DBAEXCHANGE_HXX
21 : #define INCLUDED_SVX_DBAEXCHANGE_HXX
22 :
23 : #include <svtools/transfer.hxx>
24 : #include <com/sun/star/beans/XPropertySet.hpp>
25 : #include <com/sun/star/sdbc/XConnection.hpp>
26 : #include <svx/dataaccessdescriptor.hxx>
27 : #include <com/sun/star/uno/Sequence.hxx>
28 : #include <svx/svxdllapi.h>
29 :
30 :
31 : namespace svx
32 : {
33 :
34 :
35 : // column transfer formats
36 : #define CTF_FIELD_DESCRIPTOR 0x0001 // the field descriptor format
37 : #define CTF_CONTROL_EXCHANGE 0x0002 // the control exchange format
38 : #define CTF_COLUMN_DESCRIPTOR 0x0004 // data access descriptor for a column
39 :
40 :
41 : //= OColumnTransferable
42 :
43 0 : class SVX_DLLPUBLIC OColumnTransferable : public TransferableHelper
44 : {
45 : protected:
46 : ODataAccessDescriptor m_aDescriptor;
47 : OUString m_sCompatibleFormat;
48 : sal_Int32 m_nFormatFlags;
49 :
50 : public:
51 : /** construct the transferable
52 : */
53 : OColumnTransferable(
54 : const OUString& _rDatasource
55 : ,const OUString& _rConnectionResource
56 : ,const sal_Int32 _nCommandType
57 : ,const OUString& _rCommand
58 : ,const OUString& _rFieldName
59 : ,sal_Int32 _nFormats
60 : );
61 :
62 : /** construct the transferable from a data access descriptor
63 :
64 : Note that some of the aspects, in particular all which cannot be represented
65 : as string, can only be transported via the CTF_COLUMN_DESCRIPTOR format.
66 :
67 : @param _rDescriptor
68 : The descriptor for the column. It must contain at least
69 : <ul><li>information sufficient to create a connection, that is, either one of DataSource, DatabaseLocation,
70 : ConnectionResource, and daConnection</li>
71 : <li>a Command</li>
72 : <li>a CommandType</li>
73 : <li>a ColumnName or ColumnObject</li>
74 : </ul>
75 : */
76 : OColumnTransferable(
77 : const ODataAccessDescriptor& _rDescriptor,
78 : sal_Int32 _nFormats
79 : );
80 :
81 : /** construct the transferable from a DatabaseForm component and a field name
82 :
83 : @param _rxForm
84 : the form which is bound to the data source which's field is to be dragged
85 :
86 : @param _rFieldName
87 : the name of the field to be dragged
88 :
89 : @param _rxColumn
90 : the column object. Won't be used if <arg>_nFormats</arg> does not include the CTF_COLUMN_DESCRIPTOR
91 : flag.<br/>
92 : May be <NULL/>.
93 :
94 : @param _rxConnection
95 : the connection the column belongs to. Won't be used if <arg>_nFormats</arg> does not include the CTF_COLUMN_DESCRIPTOR
96 : flag.<br/>
97 : May be <NULL/>.
98 :
99 : @param _nFormats
100 : supported formats. Must be a combination of the CTF_XXX flags
101 : */
102 : OColumnTransferable(
103 : const ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet >& _rxForm,
104 : const OUString& _rFieldName,
105 : const ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet >& _rxColumn,
106 : const ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XConnection >& _rxConnection,
107 : sal_Int32 _nFormats
108 : );
109 :
110 : /** checks whether or not a column descriptor can be extracted from the data flavor vector given
111 : @param _rFlavors
112 : available flavors
113 : @param _nFormats
114 : formats to accept
115 : */
116 : static bool canExtractColumnDescriptor(const DataFlavorExVector& _rFlavors, sal_Int32 _nFormats);
117 :
118 : /** extracts a column descriptor from the transferable given
119 : */
120 : static bool extractColumnDescriptor(
121 : const TransferableDataHelper& _rData
122 : ,OUString& _rDatasource
123 : ,OUString& _rDatabaseLocation
124 : ,OUString& _rConnectionResource
125 : ,sal_Int32& _nCommandType
126 : ,OUString& _rCommand
127 : ,OUString& _rFieldName
128 : );
129 :
130 : /** extracts a column descriptor from the transferable given
131 : */
132 : static ODataAccessDescriptor
133 : extractColumnDescriptor(const TransferableDataHelper& _rData);
134 :
135 : /** adds the data contained in the object to the given data container
136 : <p>This method helps you treating this class as simple container class:<br/>
137 : At the moment, it is a data container and a transferable.
138 : Using <method>addDataToContainer</method>, you can treat the class as dumb data container,
139 : doing the Drag'n'Drop with a TransferDataContainer instance (which may contain
140 : additional formats)</p>
141 : @TODO
142 : split this class into a two separate classes: one for the data container aspect, one for
143 : the transfer aspect
144 : */
145 : void addDataToContainer( TransferDataContainer* _pContainer );
146 :
147 : protected:
148 : // TransferableHelper overridables
149 : virtual void AddSupportedFormats() SAL_OVERRIDE;
150 : virtual bool GetData( const ::com::sun::star::datatransfer::DataFlavor& rFlavor ) SAL_OVERRIDE;
151 :
152 : static sal_uInt32 getDescriptorFormatId();
153 :
154 : private:
155 : SVX_DLLPRIVATE void implConstruct(
156 : const OUString& _rDatasource
157 : ,const OUString& _rConnectionResource
158 : ,const sal_Int32 _nCommandType
159 : ,const OUString& _rCommand
160 : ,const OUString& _rFieldName
161 : );
162 : };
163 :
164 :
165 : //= ODataAccessObjectTransferable
166 :
167 : /** class for transfering data access objects (tables, queries, statements ...)
168 : */
169 0 : class SVX_DLLPUBLIC ODataAccessObjectTransferable : public TransferableHelper
170 : {
171 : ODataAccessDescriptor m_aDescriptor;
172 : OUString m_sCompatibleObjectDescription;
173 : // needed to provide a SOT_FORMATSTR_ID_SBA_DATAEXCHANGE format
174 :
175 : public:
176 : /** should be used copying and the connection is needed.
177 : @param _rDatasource
178 : The data source name.
179 : @param _nCommandType
180 : The kind of command. @see com.sun.star.sdbc.CommandType
181 : @param _rCommand
182 : The command, either a name of a table or query or a SQL statement.
183 : */
184 : ODataAccessObjectTransferable(
185 : const OUString& _rDatasourceOrLocation
186 : ,const OUString& _rConnectionResource
187 : ,const sal_Int32 _nCommandType
188 : ,const OUString& _rCommand
189 : ,const ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XConnection >& _rxConnection
190 : );
191 :
192 : /** should be used when copying a query object and no connection is available.
193 : @param _rDatasource
194 : The data source name.
195 : @param _nCommandType
196 : The kind of command. @see com.sun.star.sdbc.CommandType
197 : @param _rCommand
198 : The command, either a name of a table or query or a SQL statement.
199 : */
200 : ODataAccessObjectTransferable(
201 : const OUString& _rDatasourceOrLocation
202 : ,const OUString& _rConnectionResource
203 : ,const sal_Int32 _nCommandType
204 : ,const OUString& _rCommand
205 : );
206 :
207 : /** with this ctor, only the object descriptor format will be provided
208 : */
209 : ODataAccessObjectTransferable(
210 : const ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet >& _rxLivingForm
211 : );
212 :
213 : /** checks whether or not an object descriptor can be extracted from the data flavor vector given
214 : @param _rFlavors
215 : available flavors
216 : @param _nFormats
217 : formats to accept
218 : */
219 : static bool canExtractObjectDescriptor(const DataFlavorExVector& _rFlavors);
220 :
221 : /** extracts a object descriptor from the transferable given
222 : */
223 : static ODataAccessDescriptor
224 : extractObjectDescriptor(const TransferableDataHelper& _rData);
225 :
226 : protected:
227 : virtual void AddSupportedFormats() SAL_OVERRIDE;
228 : virtual bool GetData( const ::com::sun::star::datatransfer::DataFlavor& rFlavor ) SAL_OVERRIDE;
229 : virtual void ObjectReleased() SAL_OVERRIDE;
230 :
231 : protected:
232 : const ODataAccessDescriptor& getDescriptor() const { return m_aDescriptor; }
233 0 : ODataAccessDescriptor& getDescriptor() { return m_aDescriptor; }
234 : protected:
235 : void addCompatibleSelectionDescription(
236 : const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any >& _rSelRows
237 : );
238 : // normally, a derived class could simply access getDescriptor[daSelection] and place the sequence therein
239 : // but unfortunately, we have this damned compatible format, and this can't be accessed in
240 : // derived classes (our class is the only one which should be contaminated with this)
241 :
242 : private:
243 : SVX_DLLPRIVATE void construct( const OUString& _rDatasourceOrLocation
244 : ,const OUString& _rConnectionResource
245 : ,const sal_Int32 _nCommandType
246 : ,const OUString& _rCommand
247 : ,const ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XConnection >& _rxConnection
248 : ,bool _bAddCommand
249 : ,const OUString& _sActiveCommand);
250 : };
251 :
252 :
253 : //= OMultiColumnTransferable
254 :
255 : /** class for transfering multiple columns
256 : */
257 0 : class SVX_DLLPUBLIC OMultiColumnTransferable : public TransferableHelper
258 : {
259 : ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue > m_aDescriptors;
260 :
261 : public:
262 : OMultiColumnTransferable(const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& _aDescriptors);
263 :
264 : /** checks whether or not an object descriptor can be extracted from the data flavor vector given
265 : @param _rFlavors
266 : available flavors
267 : @param _nFormats
268 : formats to accept
269 : */
270 : static bool canExtractDescriptor(const DataFlavorExVector& _rFlavors);
271 :
272 : /** extracts a object descriptor from the transferable given
273 : */
274 : static ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue > extractDescriptor(const TransferableDataHelper& _rData);
275 :
276 : protected:
277 : virtual void AddSupportedFormats() SAL_OVERRIDE;
278 : virtual bool GetData( const ::com::sun::star::datatransfer::DataFlavor& rFlavor ) SAL_OVERRIDE;
279 : virtual void ObjectReleased() SAL_OVERRIDE;
280 : static sal_uInt32 getDescriptorFormatId();
281 : };
282 :
283 :
284 : } // namespace svx
285 :
286 :
287 : #endif // INCLUDED_SVX_DBAEXCHANGE_HXX
288 :
289 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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