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27 
28 #ifndef _CHART2_MINIMUMANDMAXIMUMSUPPLIER_HXX
29 #define _CHART2_MINIMUMANDMAXIMUMSUPPLIER_HXX
30 
31 #include <sal/types.h>
32 #include <tools/date.hxx>
33 #include <set>
34 
35 //.............................................................................
36 namespace chart
37 {
38 //.............................................................................
39 
40 //-----------------------------------------------------------------------------
41 /**
42 */
43 
44 class MinimumAndMaximumSupplier
45 {
46 public:
47     virtual double getMinimumX() = 0;
48     virtual double getMaximumX() = 0;
49 
50     //problem y maybe not is always the second border to ask for
51     virtual double getMinimumYInRange( double fMinimumX, double fMaximumX, sal_Int32 nAxisIndex ) = 0;
52     virtual double getMaximumYInRange( double fMinimumX, double fMaximumX, sal_Int32 nAxisIndex ) = 0;
53 
54     //problem: z maybe not independent in future
55     virtual double getMinimumZ() = 0;
56     virtual double getMaximumZ() = 0;
57 
58     virtual bool isExpandBorderToIncrementRhythm( sal_Int32 nDimensionIndex ) = 0;
59     virtual bool isExpandIfValuesCloseToBorder( sal_Int32 nDimensionIndex ) = 0;
60     virtual bool isExpandWideValuesToZero( sal_Int32 nDimensionIndex ) = 0;
61     virtual bool isExpandNarrowValuesTowardZero( sal_Int32 nDimensionIndex ) = 0;
62     virtual bool isSeperateStackingForDifferentSigns( sal_Int32 nDimensionIndex ) = 0;
63 
64     //return a constant out of ::com::sun::star::chart::TimeUnit that allows to display the smallest distance between occuring dates
65     virtual long calculateTimeResolutionOnXAxis() = 0;
66     virtual void setTimeResolutionOnXAxis( long nTimeResolution, const Date& rNullDate ) = 0;
67 };
68 
69 class MergedMinimumAndMaximumSupplier : public MinimumAndMaximumSupplier
70 {
71 public:
72     MergedMinimumAndMaximumSupplier();
73     virtual ~MergedMinimumAndMaximumSupplier();
74 
75     void addMinimumAndMaximumSupplier( MinimumAndMaximumSupplier* pMinimumAndMaximumSupplier );
76     bool hasMinimumAndMaximumSupplier( MinimumAndMaximumSupplier* pMinimumAndMaximumSupplier );
77     void clearMinimumAndMaximumSupplierList();
78 
79     //--MinimumAndMaximumSupplier
80     virtual double getMinimumX();
81     virtual double getMaximumX();
82     virtual double getMinimumYInRange( double fMinimumX, double fMaximumX, sal_Int32 nAxisIndex );
83     virtual double getMaximumYInRange( double fMinimumX, double fMaximumX, sal_Int32 nAxisIndex );
84     virtual double getMinimumZ();
85     virtual double getMaximumZ();
86 
87     virtual bool isExpandBorderToIncrementRhythm( sal_Int32 nDimensionIndex );
88     virtual bool isExpandIfValuesCloseToBorder( sal_Int32 nDimensionIndex );
89     virtual bool isExpandWideValuesToZero( sal_Int32 nDimensionIndex );
90     virtual bool isExpandNarrowValuesTowardZero( sal_Int32 nDimensionIndex );
91     virtual bool isSeperateStackingForDifferentSigns( sal_Int32 nDimensionIndex );
92 
93     virtual long calculateTimeResolutionOnXAxis();
94     virtual void setTimeResolutionOnXAxis( long nTimeResolution, const Date& rNullDate );
95 
96 private:
97     typedef ::std::set< MinimumAndMaximumSupplier* > MinimumAndMaximumSupplierSet;
98     MinimumAndMaximumSupplierSet m_aMinimumAndMaximumSupplierList;
99 
100     inline MinimumAndMaximumSupplierSet::iterator begin() { return m_aMinimumAndMaximumSupplierList.begin(); }
101     inline MinimumAndMaximumSupplierSet::iterator end() { return m_aMinimumAndMaximumSupplierList.end(); }
102 };
103 
104 //.............................................................................
105 } //namespace chart
106 //.............................................................................
107 #endif
108