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Diffstat (limited to 'chart2/source/view/main/AxisUsage.hxx')
-rw-r--r-- | chart2/source/view/main/AxisUsage.hxx | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/chart2/source/view/main/AxisUsage.hxx b/chart2/source/view/main/AxisUsage.hxx new file mode 100644 index 000000000..834518707 --- /dev/null +++ b/chart2/source/view/main/AxisUsage.hxx @@ -0,0 +1,143 @@ +/* -*- 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 . + */ + +#pragma once + +#include <sal/types.h> +#include <memory> +#include <map> + +#include <VCoordinateSystem.hxx> +#include <AxisHelper.hxx> +#include <ScaleAutomatism.hxx> + +namespace chart +{ +//first index is the dimension, second index is the axis index that indicates whether this is a main or secondary axis +typedef std::pair<sal_Int32, sal_Int32> tFullAxisIndex; +typedef std::map<VCoordinateSystem*, tFullAxisIndex> tCoordinateSystemMap; + +/** This class handles a collection of coordinate systems and is used for + * executing some action on all coordinate systems such as + * "prepareAutomaticAxisScaling" and "setExplicitScaleAndIncrement". + * Moreover it contains the "aAutoScaling" object that is an instance of + * the "ScaleAutomatism" class. The initialization of "aAutoScaling" is + * performed in the "SeriesPlotterContainer::initAxisUsageList" method and is + * used in the "SeriesPlotterContainer::doAutoScaling" for calculating explicit + * scale and increment objects (see "SeriesPlotterContainer::doAutoScaling"). + */ +class AxisUsage +{ +public: + AxisUsage() + : aAutoScaling(AxisHelper::createDefaultScale(), Date(Date::SYSTEM)) + { + } + + void addCoordinateSystem(VCoordinateSystem* pCooSys, sal_Int32 nDimensionIndex, + sal_Int32 nAxisIndex) + { + if (!pCooSys) + return; + + tFullAxisIndex aFullAxisIndex(nDimensionIndex, nAxisIndex); + tCoordinateSystemMap::const_iterator aFound(aCoordinateSystems.find(pCooSys)); + + //use one scale only once for each coordinate system + //main axis are preferred over secondary axis + //value scales are preferred + if (aFound != aCoordinateSystems.end()) + { + sal_Int32 nFoundAxisIndex = aFound->second.second; + if (nFoundAxisIndex < nAxisIndex) + return; + sal_Int32 nFoundDimension = aFound->second.first; + if (nFoundDimension == 1) + return; + if (nFoundDimension < nDimensionIndex) + return; + } + aCoordinateSystems[pCooSys] = aFullAxisIndex; + + //set maximum scale index + auto aIter = aMaxIndexPerDimension.find(nDimensionIndex); + if (aIter != aMaxIndexPerDimension.end()) + { + sal_Int32 nCurrentMaxIndex = aIter->second; + if (nCurrentMaxIndex < nAxisIndex) + aMaxIndexPerDimension[nDimensionIndex] = nAxisIndex; + } + else + aMaxIndexPerDimension[nDimensionIndex] = nAxisIndex; + } + + std::vector<VCoordinateSystem*> getCoordinateSystems(sal_Int32 nDimensionIndex, + sal_Int32 nAxisIndex) + { + std::vector<VCoordinateSystem*> aRet; + + for (auto const& coordinateSystem : aCoordinateSystems) + { + if (coordinateSystem.second.first != nDimensionIndex) + continue; + if (coordinateSystem.second.second != nAxisIndex) + continue; + aRet.push_back(coordinateSystem.first); + } + + return aRet; + } + + sal_Int32 getMaxAxisIndexForDimension(sal_Int32 nDimensionIndex) + { + sal_Int32 nRet = -1; + auto aIter = aMaxIndexPerDimension.find(nDimensionIndex); + if (aIter != aMaxIndexPerDimension.end()) + nRet = aIter->second; + return nRet; + } + + void prepareAutomaticAxisScaling(ScaleAutomatism& rScaleAutomatism, sal_Int32 nDimIndex, + sal_Int32 nAxisIndex) + { + std::vector<VCoordinateSystem*> aVCooSysList = getCoordinateSystems(nDimIndex, nAxisIndex); + for (VCoordinateSystem* pVCoordinateSystem : aVCooSysList) + pVCoordinateSystem->prepareAutomaticAxisScaling(rScaleAutomatism, nDimIndex, + nAxisIndex); + } + + void setExplicitScaleAndIncrement(sal_Int32 nDimIndex, sal_Int32 nAxisIndex, + const ExplicitScaleData& rScale, + const ExplicitIncrementData& rInc) + { + std::vector<VCoordinateSystem*> aVCooSysList = getCoordinateSystems(nDimIndex, nAxisIndex); + for (VCoordinateSystem* pVCoordinateSystem : aVCooSysList) + pVCoordinateSystem->setExplicitScaleAndIncrement(nDimIndex, nAxisIndex, rScale, rInc); + } + + ScaleAutomatism aAutoScaling; + +private: + tCoordinateSystemMap aCoordinateSystems; + std::map<sal_Int32, sal_Int32> aMaxIndexPerDimension; +}; + +} //end chart2 namespace + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |