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28 : :
29 : : #ifndef OOX_XLS_UNITCONVERTER_HXX
30 : : #define OOX_XLS_UNITCONVERTER_HXX
31 : :
32 : : #include <map>
33 : : #include <vector>
34 : : #include "workbookhelper.hxx"
35 : :
36 : : namespace com { namespace sun { namespace star {
37 : : namespace util { struct Date; struct DateTime; }
38 : : } } }
39 : :
40 : : namespace oox {
41 : : namespace xls {
42 : :
43 : : // ============================================================================
44 : :
45 : : /** Units supported by the UnitConverter class. */
46 : : enum Unit
47 : : {
48 : : UNIT_INCH, /// Inches.
49 : : UNIT_POINT, /// Points.
50 : : UNIT_TWIP, /// Twips (1/20 point).
51 : : UNIT_EMU, /// English Metric Unit (1/360,000 cm).
52 : : UNIT_SCREENX, /// Horizontal screen pixels.
53 : : UNIT_SCREENY, /// Vertical screen pixels.
54 : : UNIT_REFDEVX, /// Horizontal pixels in Calc reference device.
55 : : UNIT_REFDEVY, /// Vertical pixels in Calc reference device.
56 : : UNIT_DIGIT, /// Digit width of document default font.
57 : : UNIT_SPACE, /// Space character width of document default font.
58 : :
59 : : UNIT_ENUM_SIZE
60 : : };
61 : :
62 : : /** Helper class that provides functions to convert values from and to
63 : : different units.
64 : :
65 : : Provides functions to calculate the width of certain characters of the
66 : : default font of the imported/exported document. The default font is always
67 : : the first font in the styles font list, and is always referenced by the
68 : : default cell style ("Normal" style in Excel) which is used by all empty
69 : : unformatted cells in the document. To be able to calculate the charcter
70 : : width correctly, the default font must be known, which is the case after
71 : : the finalizeImport() or finalizeExport() functions have been called. Caller
72 : : must make sure to not call the character width conversion functions before.
73 : : */
74 [ - + ]: 48 : class UnitConverter : public WorkbookHelper
75 : : {
76 : : public:
77 : : explicit UnitConverter( const WorkbookHelper& rHelper );
78 : :
79 : : /** Final processing after import of all style settings. */
80 : : void finalizeImport();
81 : : /** Updates internal nulldate for date/serial conversion. */
82 : : void finalizeNullDate( const ::com::sun::star::util::Date& rNullDate );
83 : :
84 : : /** Converts the passed value between the passed units. */
85 : : double scaleValue( double fValue, Unit eFromUnit, Unit eToUnit ) const;
86 : :
87 : : /** Converts the passed value to 1/100 millimeters. */
88 : : sal_Int32 scaleToMm100( double fValue, Unit eUnit ) const;
89 : : /** Converts the passed value from 1/100 millimeters to the passed unit. */
90 : : double scaleFromMm100( sal_Int32 nMm100, Unit eUnit ) const;
91 : :
92 : : /** Returns the serial value of the passed datetime, based on current nulldate. */
93 : : double calcSerialFromDateTime( const ::com::sun::star::util::DateTime& rDateTime ) const;
94 : : /** Returns the datetime of the passed serial value, based on current nulldate. */
95 : : ::com::sun::star::util::DateTime calcDateTimeFromSerial( double fSerial ) const;
96 : :
97 : : /** Returns a BIFF error code from the passed error string. */
98 : : sal_uInt8 calcBiffErrorCode( const ::rtl::OUString& rErrorCode ) const;
99 : :
100 : : private:
101 : : /** Adds an error code to the internal maps. */
102 : : void addErrorCode( sal_uInt8 nErrorCode, const ::rtl::OUString& rErrorCode );
103 : : /** Returns the conversion coefficient for the passed unit. */
104 : : double getCoefficient( Unit eUnit ) const;
105 : :
106 : : private:
107 : : typedef ::std::vector< double > DoubleVector;
108 : : typedef ::std::map< ::rtl::OUString, sal_uInt8 > OoxErrorCodeMap;
109 : : typedef ::std::map< sal_uInt8, ::rtl::OUString > BiffErrorCodeMap;
110 : :
111 : : DoubleVector maCoeffs; /// Coefficients for unit conversion.
112 : : OoxErrorCodeMap maOoxErrCodes; /// Maps error code strings to BIFF error constants.
113 : : sal_Int32 mnNullDate; /// Nulldate of this workbook (number of days since 0000-01-01).
114 : : };
115 : :
116 : : // ============================================================================
117 : :
118 : : } // namespace xls
119 : : } // namespace oox
120 : :
121 : : #endif
122 : :
123 : : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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