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/* -*- 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 .
*/
#ifndef INCLUDED_CHART2_SOURCE_VIEW_CHARTTYPES_PIECHART_HXX
#define INCLUDED_CHART2_SOURCE_VIEW_CHARTTYPES_PIECHART_HXX
#include <memory>
#include <VSeriesPlotter.hxx>
#include <basegfx/vector/b2dvector.hxx>
#include <basegfx/range/b2irectangle.hxx>
namespace chart
{
class PiePositionHelper;
class PieChart : public VSeriesPlotter
{
struct ShapeParam;
public:
PieChart() = delete;
PieChart( const css::uno::Reference< css::chart2::XChartType >& 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( const std::vector< ExplicitScaleData >& rScales, bool bSwapXAndYAxis ) override;
virtual void addSeries( VDataSeries* pSeries, sal_Int32 zSlot = -1, sal_Int32 xSlot = -1,sal_Int32 ySlot = -1 ) 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
css::uno::Reference<css::drawing::XShape>
createDataPoint(
const css::uno::Reference<css::drawing::XShapes>& xTarget,
const css::uno::Reference<css::beans::XPropertySet>& xObjectProperties,
tPropertyNameValueMap const * pOverWritePropertiesMap,
const ShapeParam& rParam );
/** 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 css::uno::Reference<css::drawing::XShapes>& 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);
void performLabelBestFit(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 );
css::uno::Reference< css::drawing::XShape > xTextShape;
css::uno::Reference< css::drawing::XShape > xLabelGroupShape;
::basegfx::B2IVector aFirstPosition;
::basegfx::B2IVector aOrigin;
double fValue;
bool bMovementAllowed;
bool bMoved;
css::uno::Reference< css::drawing::XShapes > 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
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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