71 lines
3 KiB
C++
71 lines
3 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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#pragma once
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#include "LabelPositionHelper.hxx"
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#include <com/sun/star/awt/Point.hpp>
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namespace chart
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{
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class PolarPlottingPositionHelper;
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class PolarLabelPositionHelper final : public LabelPositionHelper
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{
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public:
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PolarLabelPositionHelper(
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PolarPlottingPositionHelper* pPosHelper
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, sal_Int32 nDimensionCount
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, const rtl::Reference<SvxShapeGroupAnyD>& xLogicTarget );
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virtual ~PolarLabelPositionHelper() override;
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css::awt::Point getLabelScreenPositionAndAlignmentForLogicValues(
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LabelAlignment& rAlignment
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, double fLogicValueOnAngleAxis
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, double fLogicValueOnRadiusAxis
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, double fLogicZ
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, sal_Int32 nScreenValueOffsetInRadiusDirection ) const;
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/** Calculate the anchor point position for a text label.
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* When the requested label placement is of `INSIDE` or `OUTSIDE` type the
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* returned anchor point for the text label is the middle point of the
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* outer arc for the given slice; when the requested label placement is of
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* `CENTER` type the returned anchor point for the text label is the
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* middle point of the line segment bisecting the slice.
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* The text alignment is always centered when the requested label
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* placement is of `CENTER` type else it is dependent on the value of the
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* angle defined by the horizontal axis and the ray bisecting the slice.
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*
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*/
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css::awt::Point getLabelScreenPositionAndAlignmentForUnitCircleValues(
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LabelAlignment& rAlignment, sal_Int32 nLabelPlacement /*see css::chart::DataLabelPlacement*/
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, double fUnitCircleStartAngleDegree, double fUnitCircleWidthAngleDegree
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, double fUnitCircleInnerRadius, double fUnitCircleOuterRadius
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, double fLogicZ
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, sal_Int32 nScreenValueOffsetInRadiusDirection
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, const ::basegfx::B3DVector& aOffset = ::basegfx::B3DVector()) const;
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private:
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PolarPlottingPositionHelper* m_pPosHelper;
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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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