diff options
Diffstat (limited to 'chart2/source/view/charttypes/PieChart.hxx')
| -rw-r--r-- | chart2/source/view/charttypes/PieChart.hxx | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/chart2/source/view/charttypes/PieChart.hxx b/chart2/source/view/charttypes/PieChart.hxx new file mode 100644 index 000000000..9a5b7fb4c --- /dev/null +++ b/chart2/source/view/charttypes/PieChart.hxx @@ -0,0 +1,145 @@ +/* -*- 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 <memory> +#include <VSeriesPlotter.hxx> +#include <basegfx/vector/b2ivector.hxx> +#include <com/sun/star/awt/Point.hpp> + +namespace chart +{ +class PiePositionHelper; + +class PieChart : public VSeriesPlotter +{ + struct ShapeParam; + +public: + PieChart() = delete; + + PieChart( const rtl::Reference< ::chart::ChartType >& xChartTypeModel + , sal_Int32 nDimensionCount, bool bExcludingPositioning ); + virtual ~PieChart() override; + + /** This method creates all shapes needed for representing the pie chart. + */ + virtual void createShapes() override; + virtual void rearrangeLabelToAvoidOverlapIfRequested( const css::awt::Size& rPageSize ) override; + + virtual void setScales( std::vector< ExplicitScaleData >&& rScales, bool bSwapXAndYAxis ) override; + virtual void addSeries( std::unique_ptr<VDataSeries> pSeries, sal_Int32 zSlot, sal_Int32 xSlot, sal_Int32 ySlot ) override; + + virtual css::drawing::Direction3D getPreferredDiagramAspectRatio() const override; + virtual bool shouldSnapRectToUsedArea() override; + + //MinimumAndMaximumSupplier + virtual double getMinimumX() override; + virtual double getMaximumX() override; + virtual double getMinimumYInRange( double fMinimumX, double fMaximumX, sal_Int32 nAxisIndex ) override; + virtual double getMaximumYInRange( double fMinimumX, double fMaximumX, sal_Int32 nAxisIndex ) override; + + virtual bool isExpandBorderToIncrementRhythm( sal_Int32 nDimensionIndex ) override; + virtual bool isExpandIfValuesCloseToBorder( sal_Int32 nDimensionIndex ) override; + virtual bool isExpandWideValuesToZero( sal_Int32 nDimensionIndex ) override; + virtual bool isExpandNarrowValuesTowardZero( sal_Int32 nDimensionIndex ) override; + virtual bool isSeparateStackingForDifferentSigns( sal_Int32 nDimensionIndex ) override; + +private: //methods + rtl::Reference<SvxShape> + createDataPoint( + const rtl::Reference<SvxShapeGroupAnyD>& xTarget, + const css::uno::Reference<css::beans::XPropertySet>& xObjectProperties, + const ShapeParam& rParam, + const sal_Int32 nPointCount, + const bool bConcentricExplosion); + + /** This method creates a text shape for a label of a data point. + * + * @param xTextTarget + * where to append the new created text shape. + * @param rSeries + * the data series, the data point belongs to. + * @param nPointIndex + * the index of the data point the label is related to. + * @param rParam + * ShapeParam object. + */ + void createTextLabelShape( + const rtl::Reference<SvxShapeGroupAnyD>& xTextTarget, + VDataSeries& rSeries, sal_Int32 nPointIndex, ShapeParam& rParam ); + + /** This method sets `m_fMaxOffset` to the maximum `Offset` property and + * returns it. There is a `Offset` property for each entry in a data + * series, moreover there exists a shared `Offset` property attached to + * the whole data series. The `Offset` property represents the + * relative distance offset of a slice from the pie center. + * The shared property is used for exploded pie chart, while the property + * attached to single data series entries is used for manual dragging of + * a slice. + * `m_fMaxOffset` is used by `PiePositionHelper::getInnerAndOuterRadius`. + * Note that only the `Offset` properties of the first (x slot) data series + * and its entries are utilized for computing the maximum offset. + */ + double getMaxOffset(); + bool detectLabelOverlapsAndMove(const css::awt::Size& rPageSize);//returns true when there might be more to do + void resetLabelPositionsToPreviousState(); +struct PieLabelInfo; + bool tryMoveLabels( PieLabelInfo const * pFirstBorder, PieLabelInfo const * pSecondBorder + , PieLabelInfo* pCenter, bool bSingleCenter, bool& rbAlternativeMoveDirection + , const css::awt::Size& rPageSize ); + + bool performLabelBestFitInnerPlacement( ShapeParam& rShapeParam + , PieLabelInfo const & rPieLabelInfo ); + +private: //member + std::unique_ptr<PiePositionHelper> + m_pPosHelper; + bool m_bUseRings; + bool m_bSizeExcludesLabelsAndExplodedSegments; + + struct PieLabelInfo + { + PieLabelInfo(); + bool moveAwayFrom( const PieLabelInfo* pFix, const css::awt::Size& rPageSize + , bool bMoveHalfWay, bool bMoveClockwise ); + + rtl::Reference< SvxShapeText > xTextShape; + rtl::Reference< SvxShapeGroupAnyD > xLabelGroupShape; + ::basegfx::B2IVector aFirstPosition; + ::basegfx::B2IVector aOuterPosition; + ::basegfx::B2IVector aOrigin; + double fValue; + bool bMovementAllowed; + bool bMoved; + bool bShowLeaderLine; + rtl::Reference<SvxShapeGroupAnyD> xTextTarget; + PieLabelInfo* pPrevious; + PieLabelInfo* pNext; + css::awt::Point aPreviousPosition; + }; + + std::vector< PieLabelInfo > m_aLabelInfoList; + + double m_fMaxOffset; /// cached max offset value (init'ed to NaN) +}; +} //namespace chart + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |