/src/libreoffice/chart2/source/view/axes/DateHelper.cxx
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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 | | |
20 | | #include <DateHelper.hxx> |
21 | | #include <rtl/math.hxx> |
22 | | #include <com/sun/star/chart/TimeUnit.hpp> |
23 | | |
24 | | namespace chart |
25 | | { |
26 | | using namespace ::com::sun::star; |
27 | | |
28 | | bool DateHelper::IsInSameYear( const Date& rD1, const Date& rD2 ) |
29 | 0 | { |
30 | 0 | return rD1.GetYear() == rD2.GetYear(); |
31 | 0 | } |
32 | | |
33 | | bool DateHelper::IsInSameMonth( const Date& rD1, const Date& rD2 ) |
34 | 0 | { |
35 | 0 | return (rD1.GetYear() == rD2.GetYear()) |
36 | 0 | && (rD1.GetMonth() == rD2.GetMonth()); |
37 | 0 | } |
38 | | |
39 | | Date DateHelper::GetDateSomeMonthsAway( const Date& rD, sal_Int32 nMonthDistance ) |
40 | 0 | { |
41 | 0 | Date aRet(rD); |
42 | 0 | aRet.AddMonths( nMonthDistance ); |
43 | 0 | return aRet; |
44 | 0 | } |
45 | | |
46 | | Date DateHelper::GetDateSomeYearsAway( const Date& rD, sal_Int32 nYearDistance ) |
47 | 0 | { |
48 | 0 | Date aRet(rD); |
49 | 0 | aRet.AddYears( static_cast<sal_Int16>(nYearDistance) ); |
50 | 0 | return aRet; |
51 | 0 | } |
52 | | |
53 | | bool DateHelper::IsLessThanOneMonthAway( const Date& rD1, const Date& rD2 ) |
54 | 0 | { |
55 | 0 | Date aDMin( DateHelper::GetDateSomeMonthsAway( rD1, -1 ) ); |
56 | 0 | Date aDMax( DateHelper::GetDateSomeMonthsAway( rD1, 1 ) ); |
57 | |
|
58 | 0 | return rD2 > aDMin && rD2 < aDMax; |
59 | 0 | } |
60 | | |
61 | | bool DateHelper::IsLessThanOneYearAway( const Date& rD1, const Date& rD2 ) |
62 | 0 | { |
63 | 0 | Date aDMin( DateHelper::GetDateSomeYearsAway( rD1, -1 ) ); |
64 | 0 | Date aDMax( DateHelper::GetDateSomeYearsAway( rD1, 1 ) ); |
65 | |
|
66 | 0 | return rD2 > aDMin && rD2 < aDMax; |
67 | 0 | } |
68 | | |
69 | | double DateHelper::RasterizeDateValue( double fValue, const Date& rNullDate, tools::Long TimeResolution ) |
70 | 0 | { |
71 | 0 | if (std::isnan(fValue)) |
72 | 0 | return fValue; |
73 | | |
74 | 0 | Date aDate(rNullDate); aDate.AddDays(::rtl::math::approxFloor(fValue)); |
75 | 0 | switch(TimeResolution) |
76 | 0 | { |
77 | 0 | case css::chart::TimeUnit::DAY: |
78 | 0 | break; |
79 | 0 | case css::chart::TimeUnit::YEAR: |
80 | 0 | aDate.SetMonth(1); |
81 | 0 | aDate.SetDay(1); |
82 | 0 | break; |
83 | 0 | case css::chart::TimeUnit::MONTH: |
84 | 0 | default: |
85 | 0 | aDate.SetDay(1); |
86 | 0 | break; |
87 | 0 | } |
88 | 0 | return aDate - rNullDate; |
89 | 0 | } |
90 | | |
91 | | } //namespace chart |
92 | | |
93 | | /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |