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21 
22 
23 #ifndef _CHART2_DATEHELPER_HXX
24 #define _CHART2_DATEHELPER_HXX
25 
26 #include <com/sun/star/chart2/XScaling.hpp>
27 #include <tools/date.hxx>
28 
29 //.............................................................................
30 namespace chart
31 {
32 //.............................................................................
33 
34 //-----------------------------------------------------------------------------
35 /**
36 */
37 
38 class DateHelper
39 {
40 public:
41     static bool IsInSameYear( const Date& rD1, const Date& rD2 );
42     static bool IsInSameMonth( const Date& rD1, const Date& rD2 );
43 
44     static long GetMonthsBetweenDates( Date aD1, Date aD2 );
45     static Date GetDateSomeMonthsAway( const Date& rD, long nMonthDistance );
46     static Date GetDateSomeYearsAway( const Date& rD, long nYearDistance );
47     static bool IsLessThanOneMonthAway( const Date& rD1, const Date& rD2 );
48     static bool IsLessThanOneYearAway( const Date& rD1, const Date& rD2 );
49 
50     static double RasterizeDateValue( double fValue, const Date& rNullDate, long TimeResolution );
51 };
52 
53 //.............................................................................
54 } //namespace chart
55 //.............................................................................
56 #endif
57