chart2/source/view/axes/Tickmarks.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19 #ifndef INCLUDED_CHART2_SOURCE_VIEW_AXES_TICKMARKS_HXX
  20 #define INCLUDED_CHART2_SOURCE_VIEW_AXES_TICKMARKS_HXX
  21
  22 #include "TickmarkProperties.hxx"
  23 #include "VAxisProperties.hxx"
  24 #include "chartview/ExplicitScaleValues.hxx"
  25 #include <basegfx/vector/b2dvector.hxx>
  26 #include <com/sun/star/drawing/PointSequenceSequence.hpp>
  27 #include <com/sun/star/drawing/XShape.hpp>
  28 #include <com/sun/star/uno/Sequence.h>
  29
  30 #include <vector>
  31
  32 namespace chart {
  33
  34 struct TickInfo
  35 {
  36     double      fScaledTickValue;
  37     css::uno::Reference<css::chart2::XScaling> xInverseScaling;
  38
  39     ::basegfx::B2DVector  aTickScreenPosition;
  40     bool        bPaintIt;
  41
  42     css::uno::Reference<css::drawing::XShape> xTextShape;
  43
  44     OUString aText;//used only for complex categories so far
  45     sal_Int32 nFactorForLimitedTextWidth;//categories in higher levels of complex categories can have more place than a single simple category
  46
  47 //methods:
  48     TickInfo( const css::uno::Reference<css::chart2::XScaling>& xInverse );
  49
  50     /**
  51      * Return a value associated with the tick mark. It's normally an original
  52      * value from the data source, or 1-based integer index in case the axis
  53      * is a category axis.
  54      */
  55     double getUnscaledTickValue() const;
  56     sal_Int32 getScreenDistanceBetweenTicks( const TickInfo& rOherTickInfo ) const;
  57 private:
  58     TickInfo();
  59 };
  60
  61 typedef std::vector<TickInfo>           TickInfoArrayType;
  62 typedef std::vector<TickInfoArrayType>  TickInfoArraysType;
  63
  64 class TickIter
  65 {
  66 public:
  67     virtual ~TickIter() {}
  68     virtual TickInfo* firstInfo() = 0;
  69     virtual TickInfo* nextInfo() = 0;
  70 };
  71
  72 class PureTickIter : public TickIter
  73 {
  74 public:
  75     PureTickIter( TickInfoArrayType& rTickInfoVector );
  76     virtual ~PureTickIter();
  77     virtual TickInfo* firstInfo() SAL_OVERRIDE;
  78     virtual TickInfo* nextInfo() SAL_OVERRIDE;
  79
  80 private:
  81     TickInfoArrayType& m_rTickVector;
  82     TickInfoArrayType::iterator m_aTickIter;
  83 };
  84
  85 class TickFactory
  86 {
  87 public:
  88     TickFactory(
  89          const ExplicitScaleData& rScale
  90         , const ExplicitIncrementData& rIncrement );
  91     virtual ~TickFactory();
  92
  93     void getAllTicks( TickInfoArraysType& rAllTickInfos ) const;
  94     void getAllTicksShifted( TickInfoArraysType& rAllTickInfos ) const;
  95
  96     /**
  97      * Determine the screen positions of all ticks based on their numeric values.
  98      */
  99     virtual void updateScreenValues( TickInfoArraysType& rAllTickInfos ) const;
 100
 101 private: //methods
 102     bool        isDateAxis() const;
 103
 104 protected: //member
 105     ExplicitScaleData     m_rScale;
 106     ExplicitIncrementData m_rIncrement;
 107     ::com::sun::star::uno::Reference< ::com::sun::star::chart2::XScaling >
 108                                                 m_xInverseScaling;
 109
 110     //minimum and maximum of the visible range after scaling
 111     double    m_fScaledVisibleMin;
 112     double    m_fScaledVisibleMax;
 113 };
 114
 115 class TickFactory2D : public TickFactory
 116 {
 117 public:
 118     TickFactory2D(
 119         const ExplicitScaleData& rScale
 120         , const ExplicitIncrementData& rIncrement
 121         , const ::basegfx::B2DVector& rStartScreenPos, const ::basegfx::B2DVector& rEndScreenPos
 122         , const ::basegfx::B2DVector& rAxisLineToLabelLineShift );
 123
 124     virtual ~TickFactory2D();
 125
 126     static sal_Int32    getTickScreenDistance( TickIter& rIter );
 127
 128     void createPointSequenceForAxisMainLine( ::com::sun::star::drawing::PointSequenceSequence& rPoints ) const;
 129     void addPointSequenceForTickLine( ::com::sun::star::drawing::PointSequenceSequence& rPoints
 130                             , sal_Int32 nSequenceIndex
 131                             , double fScaledLogicTickValue, double fInnerDirectionSign
 132                             , const TickmarkProperties& rTickmarkProperties, bool bPlaceAtLabels ) const;
 133     ::basegfx::B2DVector  getDistanceAxisTickToText( const AxisProperties& rAxisProperties
 134         , bool bIncludeFarAwayDistanceIfSo = false
 135         , bool bIncludeSpaceBetweenTickAndText = true ) const;
 136
 137     virtual void updateScreenValues( TickInfoArraysType& rAllTickInfos ) const SAL_OVERRIDE;
 138
 139     bool  isHorizontalAxis() const;
 140     bool  isVerticalAxis() const;
 141
 142 protected: //methods
 143     ::basegfx::B2DVector     getTickScreenPosition2D( double fScaledLogicTickValue ) const;
 144
 145 private: //member
 146     ::basegfx::B2DVector    m_aAxisStartScreenPosition2D;
 147     ::basegfx::B2DVector    m_aAxisEndScreenPosition2D;
 148
 149     //labels might be posioned high or low on the border of the diagram far away from the axis
 150     //add this vector to go from the axis line to the label line (border of the diagram)
 151     ::basegfx::B2DVector    m_aAxisLineToLabelLineShift;
 152
 153     double      m_fStretch_LogicToScreen;
 154     double      m_fOffset_LogicToScreen;
 155 };
 156
 157 } //namespace chart
 158
 159 #endif
 160
 161 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */