forked from amazingfate/loongoffice
c8598f28db
A new function was defined, XdataInterpreter::getChartTypeSpecificData. Being 100% chart-type-agnostic when retrieving chart data is impossible; candlestick charts can have different numbers of sequences per series, and this information is not present in any other chart type. Change-Id: I0f54b09202c42667331b083d54d90e4ceee81083 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/113075 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
338 lines
12 KiB
C++
338 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include "StockDataInterpreter.hxx"
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#include "StockChartTypeTemplate.hxx"
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#include <DataSeries.hxx>
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#include <com/sun/star/chart2/data/XDataSink.hpp>
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#include <tools/diagnose_ex.h>
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using namespace ::com::sun::star;
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using namespace ::com::sun::star::chart2;
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using namespace ::std;
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using ::com::sun::star::uno::Reference;
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using ::com::sun::star::uno::Sequence;
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namespace chart
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{
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// explicit
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StockDataInterpreter::StockDataInterpreter(
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StockChartTypeTemplate::StockVariant eVariant ) :
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DataInterpreter(),
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m_eStockVariant( eVariant )
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{}
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StockDataInterpreter::~StockDataInterpreter()
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{}
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// ____ XDataInterpreter ____
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InterpretedData SAL_CALL StockDataInterpreter::interpretDataSource(
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const Reference< data::XDataSource >& xSource,
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const Sequence< beans::PropertyValue >& rArguments,
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const Sequence< Reference< XDataSeries > >& rSeriesToReUse )
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{
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if( ! xSource.is())
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return InterpretedData();
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Reference< data::XLabeledDataSequence > xCategories;
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Sequence< Reference< data::XLabeledDataSequence > > aData( xSource->getDataSequences() );
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const sal_Int32 nDataCount( aData.getLength());
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// sub-type properties
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const StockChartTypeTemplate::StockVariant eVar( GetStockVariant());
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const bool bHasOpenValues (( eVar == StockChartTypeTemplate::StockVariant::Open ) ||
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( eVar == StockChartTypeTemplate::StockVariant::VolumeOpen ));
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const bool bHasVolume (( eVar == StockChartTypeTemplate::StockVariant::Volume ) ||
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( eVar == StockChartTypeTemplate::StockVariant::VolumeOpen ));
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const bool bHasCategories( HasCategories( rArguments, aData ));
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// necessary roles for "full series"
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// low/high/close
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sal_Int32 nNumberOfNecessarySequences( 3 );
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if( bHasOpenValues )
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++nNumberOfNecessarySequences;
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if( bHasVolume )
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++nNumberOfNecessarySequences;
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// calculate number of full series (nNumOfFullSeries) and the number of remaining
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// sequences used for additional "incomplete series" (nRemaining)
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sal_Int32 nNumOfFullSeries( 0 );
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sal_Int32 nRemaining( 0 );
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{
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sal_Int32 nAvailableSequences( nDataCount );
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if( bHasCategories )
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--nAvailableSequences;
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nNumOfFullSeries = nAvailableSequences / nNumberOfNecessarySequences;
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nRemaining = nAvailableSequences % nNumberOfNecessarySequences;
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}
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sal_Int32 nCandleStickSeries = nNumOfFullSeries;
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sal_Int32 nVolumeSeries = nNumOfFullSeries;
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sal_Int32 nNumberOfGroups( bHasVolume ? 2 : 1 );
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// sequences of data::XLabeledDataSequence per series per group
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Sequence< Sequence< Sequence< Reference< data::XLabeledDataSequence > > > > aSequences( nNumberOfGroups );
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sal_Int32 nBarGroupIndex( 0 );
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sal_Int32 nCandleStickGroupIndex( nNumberOfGroups - 1 );
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// allocate space for labeled sequences
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if( nRemaining > 0 )
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++nCandleStickSeries;
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aSequences[nCandleStickGroupIndex].realloc( nCandleStickSeries );
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if( bHasVolume )
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{
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// if there are remaining sequences, the first one is taken for
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// additional close values, the second one is taken as volume, if volume
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// is used
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if( nRemaining > 1 )
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++nVolumeSeries;
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aSequences[nBarGroupIndex].realloc( nVolumeSeries );
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}
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// create data
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sal_Int32 nSourceIndex = 0; // index into aData sequence
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// 1. categories
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if( bHasCategories )
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{
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xCategories.set( aData[nSourceIndex] );
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++nSourceIndex;
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}
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// 2. create "full" series
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for( sal_Int32 nLabeledSeqIdx=0; nLabeledSeqIdx<nNumOfFullSeries; ++nLabeledSeqIdx )
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{
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// bar
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if( bHasVolume )
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{
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aSequences[nBarGroupIndex][nLabeledSeqIdx].realloc( 1 );
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aSequences[nBarGroupIndex][nLabeledSeqIdx][0].set( aData[nSourceIndex] );
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if( aData[nSourceIndex].is())
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SetRole( aData[nSourceIndex]->getValues(), "values-y");
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++nSourceIndex;
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}
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sal_Int32 nSeqIdx = 0;
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if( bHasOpenValues )
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{
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aSequences[nCandleStickGroupIndex][nLabeledSeqIdx].realloc( 4 );
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aSequences[nCandleStickGroupIndex][nLabeledSeqIdx][nSeqIdx].set( aData[nSourceIndex] );
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if( aData[nSourceIndex].is())
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SetRole( aData[nSourceIndex]->getValues(), "values-first");
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++nSourceIndex;
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++nSeqIdx;
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}
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else
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aSequences[nCandleStickGroupIndex][nLabeledSeqIdx].realloc( 3 );
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aSequences[nCandleStickGroupIndex][nLabeledSeqIdx][nSeqIdx].set( aData[nSourceIndex] );
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if( aData[nSourceIndex].is())
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SetRole( aData[nSourceIndex]->getValues(), "values-min");
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++nSourceIndex;
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++nSeqIdx;
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aSequences[nCandleStickGroupIndex][nLabeledSeqIdx][nSeqIdx].set( aData[nSourceIndex] );
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if( aData[nSourceIndex].is())
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SetRole( aData[nSourceIndex]->getValues(), "values-max");
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++nSourceIndex;
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++nSeqIdx;
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aSequences[nCandleStickGroupIndex][nLabeledSeqIdx][nSeqIdx].set( aData[nSourceIndex] );
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if( aData[nSourceIndex].is())
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SetRole( aData[nSourceIndex]->getValues(), "values-last");
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++nSourceIndex;
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++nSeqIdx;
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}
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// 3. create series with remaining sequences
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if( bHasVolume && nRemaining > 1 )
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{
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OSL_ASSERT( nVolumeSeries > nNumOfFullSeries );
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aSequences[nBarGroupIndex][nVolumeSeries - 1].realloc( 1 );
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OSL_ASSERT( nDataCount > nSourceIndex );
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if( aData[nSourceIndex].is())
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SetRole( aData[nSourceIndex]->getValues(), "values-y");
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aSequences[nBarGroupIndex][nVolumeSeries - 1][0].set( aData[nSourceIndex] );
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++nSourceIndex;
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--nRemaining;
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OSL_ENSURE( nRemaining, "additional bar should only be used if there is at least one more sequence for a candle stick" );
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}
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// candle-stick
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if( nRemaining > 0 )
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{
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OSL_ASSERT( nCandleStickSeries > nNumOfFullSeries );
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const sal_Int32 nSeriesIndex = nCandleStickSeries - 1;
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aSequences[nCandleStickGroupIndex][nSeriesIndex].realloc( nRemaining );
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OSL_ASSERT( nDataCount > nSourceIndex );
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// 1. low
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sal_Int32 nSeqIdx( 0 );
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aSequences[nCandleStickGroupIndex][nSeriesIndex][nSeqIdx].set( aData[nSourceIndex] );
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if( aData[nSourceIndex].is())
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SetRole( aData[nSourceIndex]->getValues(), "values-min");
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++nSourceIndex;
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++nSeqIdx;
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// 2. high
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if( nSeqIdx < nRemaining )
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{
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aSequences[nCandleStickGroupIndex][nSeriesIndex][nSeqIdx].set( aData[nSourceIndex] );
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if( aData[nSourceIndex].is())
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SetRole( aData[nSourceIndex]->getValues(), "values-max");
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++nSourceIndex;
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++nSeqIdx;
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}
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// 3. close
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OSL_ENSURE( bHasOpenValues || nSeqIdx >= nRemaining, "could have created full series" );
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if( nSeqIdx < nRemaining )
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{
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aSequences[nCandleStickGroupIndex][nSeriesIndex][nSeqIdx].set( aData[nSourceIndex] );
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if( aData[nSourceIndex].is())
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SetRole( aData[nSourceIndex]->getValues(), "values-last");
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++nSourceIndex;
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++nSeqIdx;
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}
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// 4. open
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OSL_ENSURE( nSeqIdx >= nRemaining, "could have created full series" );
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}
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// create DataSeries
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Sequence< Sequence< Reference< XDataSeries > > > aResultSeries( nNumberOfGroups );
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sal_Int32 nGroupIndex, nReUsedSeriesIdx = 0;
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for( nGroupIndex=0; nGroupIndex<nNumberOfGroups; ++nGroupIndex )
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{
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const sal_Int32 nNumSeriesData = aSequences[nGroupIndex].getLength();
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aResultSeries[nGroupIndex].realloc( nNumSeriesData );
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for( sal_Int32 nSeriesIdx = 0; nSeriesIdx < nNumSeriesData; ++nSeriesIdx, ++nReUsedSeriesIdx )
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{
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try
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{
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Reference< XDataSeries > xSeries;
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if( nReUsedSeriesIdx < rSeriesToReUse.getLength())
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xSeries.set( rSeriesToReUse[nReUsedSeriesIdx] );
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else
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xSeries.set( new DataSeries );
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OSL_ASSERT( xSeries.is() );
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Reference< data::XDataSink > xSink( xSeries, uno::UNO_QUERY_THROW );
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xSink->setData( aSequences[nGroupIndex][nSeriesIdx] );
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aResultSeries[nGroupIndex][nSeriesIdx].set( xSeries );
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}
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catch( const uno::Exception & )
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{
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DBG_UNHANDLED_EXCEPTION("chart2");
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}
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}
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}
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return InterpretedData( aResultSeries, xCategories );
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}
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// criterion: there must be two groups for stock-charts with volume and all
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// series must have the correct number of data::XLabeledDataSequences
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// todo: skip first criterion? (to allow easy switch from stock-chart without
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// volume to one with volume)
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sal_Bool SAL_CALL StockDataInterpreter::isDataCompatible(
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const InterpretedData& aInterpretedData )
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{
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// high/low/close
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sal_Int32 nNumberOfNecessarySequences = 3;
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// open
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StockChartTypeTemplate::StockVariant eVar( GetStockVariant());
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if( ( eVar == StockChartTypeTemplate::StockVariant::Open ) ||
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( eVar == StockChartTypeTemplate::StockVariant::VolumeOpen ))
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++nNumberOfNecessarySequences;
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// volume
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bool bHasVolume = (( eVar == StockChartTypeTemplate::StockVariant::Volume ) ||
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( eVar == StockChartTypeTemplate::StockVariant::VolumeOpen ));
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// 1. correct number of sub-types
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if( aInterpretedData.Series.getLength() < (bHasVolume ? 2 : 1 ))
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return false;
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// 2. a. volume -- use default check
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if( bHasVolume )
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{
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if( ! DataInterpreter::isDataCompatible(
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InterpretedData( Sequence< Sequence< Reference< XDataSeries > > >(
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aInterpretedData.Series.getConstArray(), 1 ),
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aInterpretedData.Categories )))
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return false;
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}
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// 2. b. candlestick
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{
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OSL_ASSERT( aInterpretedData.Series.getLength() > (bHasVolume ? 1 : 0));
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const Sequence< Reference< XDataSeries > > aSeries( aInterpretedData.Series[(bHasVolume ? 1 : 0)] );
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if(!aSeries.hasElements())
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return false;
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for( Reference< XDataSeries > const & dataSeries : aSeries )
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{
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try
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{
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Reference< data::XDataSource > xSrc( dataSeries, uno::UNO_QUERY_THROW );
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Sequence< Reference< data::XLabeledDataSequence > > aSeq( xSrc->getDataSequences());
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if( aSeq.getLength() != nNumberOfNecessarySequences )
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return false;
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}
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catch( const uno::Exception & )
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{
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DBG_UNHANDLED_EXCEPTION("chart2");
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}
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}
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}
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// 2. c. additional series
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// ignore
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return true;
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}
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InterpretedData SAL_CALL StockDataInterpreter::reinterpretDataSeries(
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const InterpretedData& aInterpretedData )
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{
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// prerequisite: StockDataInterpreter::isDataCompatible() returned true
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return aInterpretedData;
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}
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uno::Any SAL_CALL StockDataInterpreter::getChartTypeSpecificData(
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const OUString& sKey )
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{
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if( sKey == "stock variant" )
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{
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StockChartTypeTemplate::StockVariant eStockVariant( GetStockVariant());
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std::map< StockChartTypeTemplate::StockVariant, sal_Int32 > aTranslation {
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{ StockChartTypeTemplate::StockVariant::NONE, 0 },
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{ StockChartTypeTemplate::StockVariant::Open, 1 },
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{ StockChartTypeTemplate::StockVariant::Volume, 2 },
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{ StockChartTypeTemplate::StockVariant::VolumeOpen, 3 }
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};
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return uno::Any( aTranslation[eStockVariant] );
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}
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return uno::Any();
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}
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} // namespace chart
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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