summaryrefslogtreecommitdiff
path: root/chart2/source/view/axes/Tickmarks_Equidistant.hxx
blob: 4c89d4b44251e7343f6fb68694ffa9e5cba769e3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
/* -*- 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_AXES_TICKMARKS_EQUIDISTANT_HXX
#define INCLUDED_CHART2_SOURCE_VIEW_AXES_TICKMARKS_EQUIDISTANT_HXX

#include "Tickmarks.hxx"
#include <memory>

namespace chart
{

class EquidistantTickIter : public TickIter
{
public:
    EquidistantTickIter( const css::uno::Sequence< css::uno::Sequence< double > >& rTicks
                , const ExplicitIncrementData& rIncrement
                , sal_Int32 nMaxDepth );
    EquidistantTickIter( TickInfoArraysType& rTickInfos
            , const ExplicitIncrementData& rIncrement
            , sal_Int32 nMaxDepth );
    virtual ~EquidistantTickIter() override;

    double*     firstValue();
    double*     nextValue();

    virtual TickInfo*   firstInfo() override;
    virtual TickInfo*   nextInfo() override;

private: //methods
    sal_Int32   getIntervalCount( sal_Int32 nDepth );
    bool        isAtLastPartTick();

    void        initIter( sal_Int32 nMaxDepth );
    sal_Int32   getStartDepth() const;

    bool        gotoFirst();
    bool        gotoNext();

    double      getTickValue(sal_Int32 nDepth, sal_Int32 nIndex) const
                {
                    if(m_pSimpleTicks)
                        return (*m_pSimpleTicks)[nDepth][nIndex];
                    else
                    {
                        if ((*m_pInfoTicks)[nDepth].size() <= size_t(nIndex))
                            return std::numeric_limits<double>::max();
                        return (((*m_pInfoTicks)[nDepth])[nIndex]).fScaledTickValue;
                    }
                }
    sal_Int32   getTickCount( sal_Int32 nDepth ) const
                {
                    if(m_pSimpleTicks)
                        return (*m_pSimpleTicks)[nDepth].getLength();
                    else
                        return (*m_pInfoTicks)[nDepth].size();
                }
    sal_Int32   getMaxDepth() const
                {
                    if(m_pSimpleTicks)
                        return (*m_pSimpleTicks).getLength()-1;
                    else
                        return (*m_pInfoTicks).size()-1;
                }

private: //member
    const css::uno::Sequence< css::uno::Sequence< double > >*  m_pSimpleTicks;
    TickInfoArraysType*       m_pInfoTicks;
    const ExplicitIncrementData& m_rIncrement;
    sal_Int32   m_nMaxDepth;
    sal_Int32   m_nTickCount;
    std::unique_ptr<sal_Int32[]>
                m_pnPositions; //current positions in the different sequences
    std::unique_ptr<sal_Int32[]>
                m_pnPreParentCount; //the tickmarks do not start with a major tick always,
                                    //the PreParentCount states for each depth how many subtickmarks are available in front of the first parent tickmark
    std::unique_ptr<bool[]>
                m_pbIntervalFinished;
    sal_Int32   m_nCurrentDepth;
    sal_Int32   m_nCurrentPos;
    double      m_fCurrentValue;
};

class EquidistantTickFactory
{
public:
    EquidistantTickFactory(
         const ExplicitScaleData& rScale
        , const ExplicitIncrementData& rIncrement );
    ~EquidistantTickFactory();

    void getAllTicks( TickInfoArraysType& rAllTickInfos ) const;
    void getAllTicksShifted( TickInfoArraysType& rAllTickInfos ) const;

    static double getMinimumAtIncrement( double fMin, const ExplicitIncrementData& rIncrement );
    static double getMaximumAtIncrement( double fMax, const ExplicitIncrementData& rIncrement );

private: //methods
    void        addSubTicks( sal_Int32 nDepth,
                        css::uno::Sequence< css::uno::Sequence< double > >& rParentTicks ) const;
    double*     getMajorTick( sal_Int32 nTick ) const;
    double*     getMinorTick( sal_Int32 nTick, sal_Int32 nDepth
                    , double fStartParentTick, double fNextParentTick ) const;
    sal_Int32   getMaxTickCount( sal_Int32 nDepth ) const;
    sal_Int32   getTickDepth() const;

    bool        isVisible( double fValue ) const;
    bool        isWithinOuterBorder( double fScaledValue ) const; //all within the outer major tick marks

private: //member
    ExplicitScaleData     m_rScale;
    ExplicitIncrementData m_rIncrement;
    css::uno::Reference< css::chart2::XScaling > m_xInverseScaling;

    //minimum and maximum of the visible range after scaling
    double    m_fScaledVisibleMin;
    double    m_fScaledVisibleMax;

    std::unique_ptr<double[]>
              m_pfCurrentValues;
    //major-tick positions that may lay outside the visible range but complete partly visible intervals at the borders
    double    m_fOuterMajorTickBorderMin;
    double    m_fOuterMajorTickBorderMax;
    double    m_fOuterMajorTickBorderMin_Scaled;
    double    m_fOuterMajorTickBorderMax_Scaled;
};

} //namespace chart
#endif

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */