165 lines
7 KiB
C++
165 lines
7 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 "VAxisBase.hxx"
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#include <basegfx/vector/b2dvector.hxx>
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namespace chart
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{
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class VCartesianAxis : public VAxisBase
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{
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// public methods
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public:
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VCartesianAxis( const AxisProperties& rAxisProperties
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, const css::uno::Reference< css::util::XNumberFormatsSupplier >& xNumberFormatsSupplier
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, sal_Int32 nDimensionIndex, sal_Int32 nDimensionCount
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, PlottingPositionHelper* pPosHelper = nullptr //takes ownership
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);
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virtual ~VCartesianAxis() override;
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virtual void createMaximumLabels() override;
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virtual void createLabels() override;
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virtual void updatePositions() override;
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virtual void createShapes() override;
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virtual sal_Int32 estimateMaximumAutoMainIncrementCount() override;
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virtual void createAllTickInfos( TickInfoArraysType& rAllTickInfos ) override;
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void createAllTickInfosFromComplexCategories( TickInfoArraysType& rAllTickInfos, bool bShiftedPosition );
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TickIter* createLabelTickIterator( sal_Int32 nTextLevel );
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TickIter* createMaximumLabelTickIterator( sal_Int32 nTextLevel );
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sal_Int32 getTextLevelCount() const;
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virtual TickFactory* createTickFactory() override;
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/**
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* Get the value at which the other axis crosses.
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*/
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double getAxisIntersectionValue() const;
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/**
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* Get the value at which label line crosses the other axis.
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*/
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double getLabelLineIntersectionValue() const;
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/**
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* Get the value at which extra line crosses the other axis.
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*
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* @return a NaN if the line doesn't cross the other axis, a non-NaN value
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* otherwise.
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*/
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double getExtraLineIntersectionValue() const;
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void get2DAxisMainLine(
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basegfx::B2DVector& rStart, basegfx::B2DVector& rEnd, AxisLabelAlignment& rLabelAlignment,
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double fCrossesOtherAxis ) const;
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//Layout interface for cartesian axes:
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//the returned value describes the minimum size that is necessary
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//for the text labels in the direction orthogonal to the axis
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//(for an y-axis a width is returned; in case of an x-axis the value describes a height)
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//the return value is measured in screen dimension
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//As an example the MinimumOrthogonalSize of an x-axis equals the
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//Font Height if the label properties allow for labels parallel to the axis.
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// sal_Int32 calculateMinimumOrthogonalSize( /*... parallel...*/ );
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//Minimum->Preferred
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//returns true if the MinimumOrthogonalSize can be calculated
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//with the creation of at most one text shape
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//(this is e.g. true if the parameters allow for labels parallel to the axis.)
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// sal_bool canQuicklyCalculateMinimumOrthogonalSize();
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struct ScreenPosAndLogicPos
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{
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double fLogicX;
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double fLogicY;
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double fLogicZ;
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::basegfx::B2DVector aScreenPos;
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};
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void createDataTableView(std::vector<std::unique_ptr<VSeriesPlotter>>& rSeriesPlotterList,
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css::uno::Reference<css::util::XNumberFormatsSupplier> const& xNumberFormatsSupplier,
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rtl::Reference<::chart::ChartModel> const& xChartDoc,
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css::uno::Reference<css::uno::XComponentContext> const& rComponentContext) override;
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private: //methods
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/**
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* Go through all tick label positions and decide which labels to display
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* based on the text shape geometry, overlap setting, tick interval,
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* auto-stagger setting etc.
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*
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* When the auto-stagger setting is on, try to avoid overlaps by
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* staggering labels or set the labels at an angle. This method may
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* change the axis label properties especially when the auto staggering is
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* performed. But the screen label positions will not be shifted in this
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* method; it will be done in the doStaggeringOfLabels method.
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*
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* @return true if the text shapes have been successfully created,
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* otherwise false. Returning false means the AxisLabelProperties
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* have changed during the call, and the caller needs to call this
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* method once again to get the text shapes created.
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*/
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bool createTextShapes(
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const rtl::Reference< SvxShapeGroupAnyD >& xTarget,
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TickIter& rTickIter, AxisLabelProperties& rAxisLabelProperties,
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TickFactory2D const * pTickFactory, sal_Int32 nScreenDistanceBetweenTicks );
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/**
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* Variant of createTextShapes where none of auto-staggering and
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* link-breaking are allowed in case of overlaps. Overlaps of text shapes
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* are to be resolved only by adjusting the label tick interval.
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*/
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bool createTextShapesSimple(
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const rtl::Reference< SvxShapeGroupAnyD >& xTarget,
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TickIter& rTickIter, AxisLabelProperties& rAxisLabelProperties,
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TickFactory2D const * pTickFactory );
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void createTickMarkLineShapes( TickInfoArrayType& rTickInfos, const TickmarkProperties& rTickmarkProperties, TickFactory2D const & rTickFactory2D, bool bOnlyAtLabels );
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TickFactory2D* createTickFactory2D();
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void hideIdenticalScreenValues( TickInfoArraysType& rTickInfos ) const;
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/**
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* Shift the screen positions of the tick labels according to the stagger
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* settings. Final stagger setting is decided during the createTextShapes
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* call, but this method does the physical shifting of the label
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* positions based on the final stagger setting.
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*/
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void doStaggeringOfLabels( const AxisLabelProperties& rAxisLabelProperties
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, TickFactory2D const * pTickFactory2D );
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/**
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* @return true if we can break a single line label text into multiple
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* lines for better fitting, otherwise false.
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*/
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bool isBreakOfLabelsAllowed( const AxisLabelProperties& rAxisLabelProperties, bool bIsHorizontalAxis, bool bIsVerticalAxis ) const;
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::basegfx::B2DVector getScreenPosition( double fLogicX, double fLogicY, double fLogicZ ) const;
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ScreenPosAndLogicPos getScreenPosAndLogicPos( double fLogicX, double fLogicY, double fLogicZ ) const;
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void createDataTableShape(std::unique_ptr<TickFactory2D> const& rTickFactory2D);
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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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