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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_INC_POLARLABELPOSITIONHELPER_HXX
#define INCLUDED_CHART2_SOURCE_VIEW_INC_POLARLABELPOSITIONHELPER_HXX
#include "LabelPositionHelper.hxx"
#include <com/sun/star/awt/Point.hpp>
namespace chart
{
class PolarPlottingPositionHelper;
class PolarLabelPositionHelper : public LabelPositionHelper
{
public:
PolarLabelPositionHelper(
PolarPlottingPositionHelper* pPosHelper
, sal_Int32 nDimensionCount
, const css::uno::Reference< css::drawing::XShapes >& xLogicTarget
, ShapeFactory* pShapeFactory );
virtual ~PolarLabelPositionHelper() override;
css::awt::Point getLabelScreenPositionAndAlignmentForLogicValues(
LabelAlignment& rAlignment
, double fLogicValueOnAngleAxis
, double fLogicValueOnRadiusAxis
, double fLogicZ
, sal_Int32 nScreenValueOffsetInRadiusDirection ) const;
/** Calculate the anchor point position for a text label.
* When the requested label placement is of `INSIDE` or `OUTSIDE` type the
* returned anchor point for the text label is the middle point of the
* outer arc for the given slice; when the requested label placement is of
* `CENTER` type the returned anchor point for the text label is the
* middle point of the line segment bisecting the slice.
* The text alignment is always centered when the requested label
* placement is of `CENTER` type else it is dependent on the value of the
* angle defined by the horizontal axis and the ray bisecting the slice.
*
*/
css::awt::Point getLabelScreenPositionAndAlignmentForUnitCircleValues(
LabelAlignment& rAlignment, sal_Int32 nLabelPlacement /*see css::chart::DataLabelPlacement*/
, double fUnitCircleStartAngleDegree, double fUnitCircleWidthAngleDegree
, double fUnitCircleInnerRadius, double fUnitCircleOuterRadius
, double fLogicZ
, sal_Int32 nScreenValueOffsetInRadiusDirection ) const;
private:
PolarPlottingPositionHelper* m_pPosHelper;
};
} //namespace chart
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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