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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
/* -*- 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 .
*/
#include "DateScaling.hxx"
#include <com/sun/star/chart/TimeUnit.hpp>
#include <rtl/math.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <limits>
namespace
{
constexpr OUStringLiteral lcl_aServiceName_DateScaling = u"com.sun.star.chart2.DateScaling";
constexpr OUStringLiteral lcl_aServiceName_InverseDateScaling
= u"com.sun.star.chart2.InverseDateScaling";
const double lcl_fNumberOfMonths = 12.0;//todo: this needs to be offered by basic tools Date class if it should be more generic
}
namespace chart
{
using namespace ::com::sun::star;
using namespace ::com::sun::star::chart2;
using ::com::sun::star::chart::TimeUnit::DAY;
using ::com::sun::star::chart::TimeUnit::MONTH;
using ::com::sun::star::chart::TimeUnit::YEAR;
DateScaling::DateScaling( const Date& rNullDate, sal_Int32 nTimeUnit, bool bShifted )
: m_aNullDate( rNullDate )
, m_nTimeUnit( nTimeUnit )
, m_bShifted( bShifted )
{
}
DateScaling::~DateScaling()
{
}
double SAL_CALL DateScaling::doScaling( double value )
{
double fResult(value);
if( std::isnan( value ) || std::isinf( value ) )
return std::numeric_limits<double>::quiet_NaN();
switch( m_nTimeUnit )
{
case DAY:
fResult = value;
if(m_bShifted)
fResult+=0.5;
break;
case YEAR:
case MONTH:
default:
{
Date aDate(m_aNullDate);
aDate.AddDays(::rtl::math::approxFloor(value));
fResult = aDate.GetYear();
fResult *= lcl_fNumberOfMonths;//assuming equal count of months in each year
fResult += aDate.GetMonth();
double fDayOfMonth = aDate.GetDay();
fDayOfMonth -= 1.0;
double fDaysInMonth = aDate.GetDaysInMonth();
fResult += fDayOfMonth/fDaysInMonth;
if(m_bShifted)
{
if( m_nTimeUnit==YEAR )
fResult += 0.5*lcl_fNumberOfMonths;
else
fResult += 0.5;
}
break;
}
}
return fResult;
}
uno::Reference< XScaling > SAL_CALL DateScaling::getInverseScaling()
{
return new InverseDateScaling( m_aNullDate, m_nTimeUnit, m_bShifted );
}
OUString SAL_CALL DateScaling::getServiceName()
{
return lcl_aServiceName_DateScaling;
}
OUString SAL_CALL DateScaling::getImplementationName()
{
return lcl_aServiceName_DateScaling;
}
sal_Bool SAL_CALL DateScaling::supportsService( const OUString& rServiceName )
{
return cppu::supportsService(this, rServiceName);
}
css::uno::Sequence< OUString > SAL_CALL DateScaling::getSupportedServiceNames()
{
return { lcl_aServiceName_DateScaling };
}
InverseDateScaling::InverseDateScaling( const Date& rNullDate, sal_Int32 nTimeUnit, bool bShifted )
: m_aNullDate( rNullDate )
, m_nTimeUnit( nTimeUnit )
, m_bShifted( bShifted )
{
}
InverseDateScaling::~InverseDateScaling()
{
}
double SAL_CALL InverseDateScaling::doScaling( double value )
{
double fResult(value);
if( std::isnan( value ) || std::isinf( value ) )
return std::numeric_limits<double>::quiet_NaN();
else
{
switch( m_nTimeUnit )
{
case DAY:
if(m_bShifted)
value -= 0.5;
fResult = value;
break;
case YEAR:
case MONTH:
default:
//Date aDate(m_aNullDate);
if(m_bShifted)
{
if( m_nTimeUnit==YEAR )
value -= 0.5*lcl_fNumberOfMonths;
else
value -= 0.5;
}
Date aDate( Date::EMPTY );
double fYear = ::rtl::math::approxFloor(value/lcl_fNumberOfMonths);
double fMonth = ::rtl::math::approxFloor(value-(fYear*lcl_fNumberOfMonths));
if( fMonth==0.0 )
{
fYear--;
fMonth=12.0;
}
aDate.SetYear( static_cast<sal_uInt16>(fYear) );
aDate.SetMonth( static_cast<sal_uInt16>(fMonth) );
aDate.SetDay( 1 );
double fMonthCount = (fYear*lcl_fNumberOfMonths)+fMonth;
double fDay = (value-fMonthCount)*aDate.GetDaysInMonth();
fDay += 1.0;
aDate.SetDay( static_cast<sal_uInt16>(::rtl::math::round(fDay)) );
fResult = aDate - m_aNullDate;
break;
}
}
return fResult;
}
uno::Reference< XScaling > SAL_CALL InverseDateScaling::getInverseScaling()
{
return new DateScaling( m_aNullDate, m_nTimeUnit, m_bShifted );
}
OUString SAL_CALL InverseDateScaling::getServiceName()
{
return lcl_aServiceName_InverseDateScaling;
}
OUString SAL_CALL InverseDateScaling::getImplementationName()
{
return lcl_aServiceName_InverseDateScaling;
}
sal_Bool SAL_CALL InverseDateScaling::supportsService( const OUString& rServiceName )
{
return cppu::supportsService(this, rServiceName);
}
css::uno::Sequence< OUString > SAL_CALL InverseDateScaling::getSupportedServiceNames()
{
return { lcl_aServiceName_InverseDateScaling };
}
} //namespace chart
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
