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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 :
21 : #include "ChartDropTargetHelper.hxx"
22 : #include "DiagramHelper.hxx"
23 : #include "DataSourceHelper.hxx"
24 :
25 : #include <com/sun/star/chart2/XChartDocument.hpp>
26 : #include <com/sun/star/chart2/data/XDataProvider.hpp>
27 : #include <com/sun/star/container/XChild.hpp>
28 :
29 : #include <sot/formats.hxx>
30 : #include <vector>
31 :
32 : using namespace ::com::sun::star;
33 :
34 : using ::com::sun::star::uno::Reference;
35 : using ::com::sun::star::uno::Sequence;
36 :
37 : namespace
38 : {
39 :
40 0 : ::std::vector< OUString > lcl_getStringsFromByteSequence(
41 : const Sequence< sal_Int8 > & aByteSequence )
42 : {
43 0 : ::std::vector< OUString > aResult;
44 0 : const sal_Int32 nLength = aByteSequence.getLength();
45 0 : const sal_Char * pBytes( reinterpret_cast< const sal_Char* >( aByteSequence.getConstArray()));
46 0 : sal_Int32 nStartPos = 0;
47 0 : for( sal_Int32 nPos=0; nPos<nLength; ++nPos )
48 : {
49 0 : if( pBytes[nPos] == '\0' )
50 : {
51 0 : aResult.push_back( OUString( pBytes + nStartPos, (nPos - nStartPos), RTL_TEXTENCODING_ASCII_US ));
52 0 : nStartPos = nPos + 1;
53 : }
54 : }
55 0 : return aResult;
56 : }
57 :
58 : } // anonymous namespace
59 :
60 : namespace chart
61 : {
62 :
63 17 : ChartDropTargetHelper::ChartDropTargetHelper(
64 : const Reference< datatransfer::dnd::XDropTarget >& rxDropTarget,
65 : const Reference< chart2::XChartDocument > & xChartDocument ) :
66 : DropTargetHelper( rxDropTarget ),
67 17 : m_xChartDocument( xChartDocument )
68 17 : {}
69 :
70 34 : ChartDropTargetHelper::~ChartDropTargetHelper()
71 34 : {}
72 :
73 0 : bool ChartDropTargetHelper::satisfiesPrerequisites() const
74 : {
75 0 : return ( m_xChartDocument.is() &&
76 0 : ! m_xChartDocument->hasInternalDataProvider());
77 : }
78 :
79 0 : sal_Int8 ChartDropTargetHelper::AcceptDrop( const AcceptDropEvent& rEvt )
80 : {
81 0 : sal_Int8 nResult = DND_ACTION_NONE;
82 :
83 0 : if( ( rEvt.mnAction == DND_ACTION_COPY ||
84 0 : rEvt.mnAction == DND_ACTION_MOVE ) &&
85 0 : satisfiesPrerequisites() &&
86 0 : IsDropFormatSupported( SOT_FORMATSTR_ID_LINK ) )
87 : {
88 : // @todo: check if the data is suitable. Is this possible without XTransferable?
89 0 : nResult = rEvt.mnAction;
90 : }
91 :
92 0 : return nResult;
93 : }
94 :
95 0 : sal_Int8 ChartDropTargetHelper::ExecuteDrop( const ExecuteDropEvent& rEvt )
96 : {
97 0 : sal_Int8 nResult = DND_ACTION_NONE;
98 :
99 0 : if( ( rEvt.mnAction == DND_ACTION_COPY ||
100 0 : rEvt.mnAction == DND_ACTION_MOVE ) &&
101 0 : rEvt.maDropEvent.Transferable.is() &&
102 0 : satisfiesPrerequisites())
103 : {
104 0 : TransferableDataHelper aDataHelper( rEvt.maDropEvent.Transferable );
105 0 : if( aDataHelper.HasFormat( SOT_FORMATSTR_ID_LINK ))
106 : {
107 0 : Sequence< sal_Int8 > aBytes;
108 0 : if( aDataHelper.GetSequence( SOT_FORMATSTR_ID_LINK, aBytes ))
109 : {
110 0 : ::std::vector< OUString > aStrings( lcl_getStringsFromByteSequence( aBytes ));
111 0 : if( aStrings.size() >= 3 && aStrings[0] == "soffice" )
112 : {
113 0 : OUString aRangeString( aStrings[2] );
114 0 : Reference< container::XChild > xChild( m_xChartDocument, uno::UNO_QUERY );
115 0 : if( xChild.is())
116 : {
117 0 : Reference< frame::XModel > xParentModel( xChild->getParent(), uno::UNO_QUERY );
118 0 : if( xParentModel.is() &&
119 0 : m_xChartDocument.is())
120 : {
121 0 : bool bDataComesFromParent = true;
122 : // @todo: get the title somehow and compare it to
123 : // aDocName if successful (the document is the
124 : // parent)
125 0 : if( bDataComesFromParent )
126 : {
127 0 : Reference< chart2::XDiagram > xDiagram( m_xChartDocument->getFirstDiagram() );
128 0 : Reference< chart2::data::XDataProvider > xDataProvider( m_xChartDocument->getDataProvider());
129 0 : if( xDataProvider.is() && xDiagram.is() &&
130 0 : DataSourceHelper::allArgumentsForRectRangeDetected( m_xChartDocument ))
131 : {
132 : Reference< chart2::data::XDataSource > xDataSource(
133 0 : DataSourceHelper::pressUsedDataIntoRectangularFormat( m_xChartDocument ));
134 : Sequence< beans::PropertyValue > aArguments(
135 0 : xDataProvider->detectArguments( xDataSource ));
136 :
137 0 : OUString aOldRange;
138 0 : beans::PropertyValue * pCellRange = 0;
139 0 : for( sal_Int32 i=0; i<aArguments.getLength(); ++i )
140 : {
141 0 : if ( aArguments[i].Name == "CellRangeRepresentation" )
142 : {
143 0 : pCellRange = (aArguments.getArray() + i);
144 0 : aArguments[i].Value >>= aOldRange;
145 0 : break;
146 : }
147 : }
148 0 : if( pCellRange )
149 : {
150 : // copy means add ranges, move means replace
151 0 : if( rEvt.mnAction == DND_ACTION_COPY )
152 : {
153 : // @todo: using implcit knowledge that ranges can be
154 : // merged with ";". This should be done more general
155 0 : pCellRange->Value <<= (aOldRange + ";" + aRangeString );
156 : }
157 : // move means replace range
158 : else
159 : {
160 0 : pCellRange->Value <<= aRangeString;
161 : }
162 :
163 0 : xDataSource.set( xDataProvider->createDataSource( aArguments ));
164 0 : xDiagram->setDiagramData( xDataSource, aArguments );
165 :
166 : // always return copy state to avoid deletion of the dragged range
167 0 : nResult = DND_ACTION_COPY;
168 0 : }
169 0 : }
170 : }
171 0 : }
172 0 : }
173 0 : }
174 0 : }
175 0 : }
176 : }
177 0 : return nResult;
178 : }
179 :
180 : } // namespace chart
181 :
182 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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