Adding upstream version 4:24.2.0.upstream/4%24.2.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 178 insertions, 0 deletions

diff --git a/chart2/source/controller/main/ChartDropTargetHelper.cxx b/chart2/source/controller/main/ChartDropTargetHelper.cxx
new file mode 100644
index 0000000000..fc6762598a
--- /dev/null
+++ b/chart2/source/controller/main/ChartDropTargetHelper.cxx
@@ -0,0 +1,178 @@
+/* -*- 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 .
+ */
+
+#include "ChartDropTargetHelper.hxx"
+#include <DataSource.hxx>
+#include <DataSourceHelper.hxx>
+#include <ChartModel.hxx>
+#include <Diagram.hxx>
+
+#include <com/sun/star/chart2/data/XDataProvider.hpp>
+
+#include <sot/formats.hxx>
+#include <utility>
+#include <vector>
+
+using namespace ::com::sun::star;
+
+using ::com::sun::star::uno::Reference;
+using ::com::sun::star::uno::Sequence;
+
+namespace
+{
+
+std::vector< OUString > lcl_getStringsFromByteSequence(
+    const Sequence< sal_Int8 > & aByteSequence )
+{
+    std::vector< OUString > aResult;
+    const sal_Int32 nLength = aByteSequence.getLength();
+    const char * pBytes( reinterpret_cast< const char* >( aByteSequence.getConstArray()));
+    sal_Int32 nStartPos = 0;
+    for( sal_Int32 nPos=0; nPos<nLength; ++nPos )
+    {
+        if( pBytes[nPos] == '\0' )
+        {
+            aResult.emplace_back( pBytes + nStartPos, (nPos - nStartPos), RTL_TEXTENCODING_ASCII_US );
+            nStartPos = nPos + 1;
+        }
+    }
+    return aResult;
+}
+
+} // anonymous namespace
+
+namespace chart
+{
+
+ChartDropTargetHelper::ChartDropTargetHelper(
+    const Reference< datatransfer::dnd::XDropTarget >& rxDropTarget,
+    rtl::Reference<::chart::ChartModel> xChartDocument ) :
+        DropTargetHelper( rxDropTarget ),
+        m_xChartDocument(std::move( xChartDocument ))
+{}
+
+ChartDropTargetHelper::~ChartDropTargetHelper()
+{}
+
+bool ChartDropTargetHelper::satisfiesPrerequisites() const
+{
+    return  ( m_xChartDocument.is() &&
+              ! m_xChartDocument->hasInternalDataProvider());
+}
+
+sal_Int8 ChartDropTargetHelper::AcceptDrop( const AcceptDropEvent& rEvt )
+{
+    sal_Int8 nResult = DND_ACTION_NONE;
+
+    if( ( rEvt.mnAction == DND_ACTION_COPY ||
+          rEvt.mnAction == DND_ACTION_MOVE ) &&
+        satisfiesPrerequisites() &&
+        IsDropFormatSupported( SotClipboardFormatId::LINK ) )
+    {
+        // @todo: check if the data is suitable. Is this possible without XTransferable?
+        nResult = rEvt.mnAction;
+    }
+
+    return nResult;
+}
+
+sal_Int8 ChartDropTargetHelper::ExecuteDrop( const ExecuteDropEvent& rEvt )
+{
+    sal_Int8 nResult = DND_ACTION_NONE;
+
+    if( ( rEvt.mnAction == DND_ACTION_COPY ||
+          rEvt.mnAction == DND_ACTION_MOVE ) &&
+        rEvt.maDropEvent.Transferable.is() &&
+        satisfiesPrerequisites())
+    {
+        TransferableDataHelper aDataHelper( rEvt.maDropEvent.Transferable );
+        if( aDataHelper.HasFormat( SotClipboardFormatId::LINK ))
+        {
+            Sequence<sal_Int8> aBytes = aDataHelper.GetSequence(SotClipboardFormatId::LINK, OUString());
+            if (aBytes.hasElements())
+            {
+                std::vector< OUString > aStrings( lcl_getStringsFromByteSequence( aBytes ));
+                if( aStrings.size() >= 3 && aStrings[0] == "soffice" )
+                {
+                    OUString aRangeString( aStrings[2] );
+                    if( m_xChartDocument.is())
+                    {
+                        Reference< frame::XModel > xParentModel( m_xChartDocument->getParent(), uno::UNO_QUERY );
+                        if( xParentModel.is() &&
+                            m_xChartDocument.is())
+                        {
+                            // @todo: get the title somehow and compare it to
+                            // aDocName if successful (the document is the
+                            // parent)
+                            rtl::Reference< Diagram > xDiagram = m_xChartDocument->getFirstChartDiagram();
+                            Reference< chart2::data::XDataProvider > xDataProvider( m_xChartDocument->getDataProvider());
+                            if( xDataProvider.is() && xDiagram.is() &&
+                                DataSourceHelper::allArgumentsForRectRangeDetected( m_xChartDocument ))
+                            {
+                                rtl::Reference< DataSource > xDataSource1 =
+                                    DataSourceHelper::pressUsedDataIntoRectangularFormat( m_xChartDocument );
+                                Sequence< beans::PropertyValue > aArguments(
+                                    xDataProvider->detectArguments( xDataSource1 ));
+
+                                OUString aOldRange;
+                                beans::PropertyValue * pCellRange = nullptr;
+                                for( sal_Int32 i=0; i<aArguments.getLength(); ++i )
+                                {
+                                    if ( aArguments[i].Name == "CellRangeRepresentation" )
+                                    {
+                                        pCellRange = (aArguments.getArray() + i);
+                                        aArguments[i].Value >>= aOldRange;
+                                        break;
+                                    }
+                                }
+                                if( pCellRange )
+                                {
+                                    // copy means add ranges, move means replace
+                                    if( rEvt.mnAction == DND_ACTION_COPY )
+                                    {
+                                        // @todo: using implicit knowledge that ranges can be
+                                        // merged with ";". This should be done more general
+                                        pCellRange->Value <<= aOldRange + ";" + aRangeString;
+                                    }
+                                    // move means replace range
+                                    else
+                                    {
+                                        pCellRange->Value <<= aRangeString;
+                                    }
+
+                                    Reference< chart2::data::XDataSource > xDataSource2 =
+                                        xDataProvider->createDataSource( aArguments );
+                                    xDiagram->setDiagramData( xDataSource2, aArguments );
+
+                                    // always return copy state to avoid deletion of the dragged range
+                                    nResult = DND_ACTION_COPY;
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+    return nResult;
+}
+
+} //  namespace chart
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */