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