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19 #ifndef INCLUDED_EDITENG_LRSPITEM_HXX
20 #define INCLUDED_EDITENG_LRSPITEM_HXX
21 
22 #include <svl/poolitem.hxx>
23 #include <editeng/editengdllapi.h>
24 
25 
26 // class SvxLRSpaceItem --------------------------------------------------
27 
28 /*  [Description]
29 
30     Left/Right margin and first line indent
31 
32     SvxLRSpaceItem offers two interfaces for views from the left margin and
33     first line indent. The get methods return the member, with the layout also
34     as expected: the left edge shifts to the negative first line indent to the
35     left. The SetTxt/Gettxt methods assume that the left side represents the
36     0 coordinate for the first line indent:
37 
38     UI         UI       LAYOUT   UI/TEXT      UI/TEXT    (Where?)
39     SetTextLeft SetTxtFirst GetLeft  GetTextLeft  GetTxtFirst  (What?)
40     500       -500        0        500         -500      (How much?)
41     500         0        500       500           0
42     500       +500       500       500         +500
43     700       -500       200       700         -500
44 */
45 
46 #define LRSPACE_TXTLEFT_VERSION (sal_uInt16(0x0002))
47 #define LRSPACE_NEGATIVE_VERSION (sal_uInt16(0x0004))
48 
49 class EDITENG_DLLPUBLIC SvxLRSpaceItem final : public SfxPoolItem
50 {
51     tools::Long    nTxtLeft;           // We spend a sal_uInt16
52     tools::Long    nLeftMargin;        // nLeft or the negative first-line indent
53     tools::Long    nRightMargin;       // The unproblematic right edge
54     /// The amount of extra space added to the left margin.
55     tools::Long    m_nGutterMargin;
56     /// The amount of extra space added to the right margin, on mirrored pages.
57     tools::Long    m_nRightGutterMargin;
58 
59     sal_uInt16  nPropFirstLineOffset, nPropLeftMargin, nPropRightMargin;
60     short   nFirstLineOffset;     // First-line indent _always_ relative to nTxtLeft
61     bool        bAutoFirst;    // Automatic calculation of the first line indent
62     bool        bExplicitZeroMarginValRight;
63     bool        bExplicitZeroMarginValLeft;
64 
65     void   AdjustLeft();        // nLeftMargin and nTxtLeft are being adjusted.
66 
67 public:
68 
69     static SfxPoolItem* CreateDefault();
70 
71     explicit SvxLRSpaceItem( const sal_uInt16 nId  );
72     SvxLRSpaceItem( const tools::Long nLeft, const tools::Long nRight,
73                     const tools::Long nTLeft /*= 0*/, const short nOfset /*= 0*/,
74                     const sal_uInt16 nId  );
75     SvxLRSpaceItem(SvxLRSpaceItem const &) = default; // SfxPoolItem copy function dichotomy
76 
77     // "pure virtual Methods" from SfxPoolItem
78     virtual bool            operator==( const SfxPoolItem& ) const override;
79 
80     virtual bool            QueryValue( css::uno::Any& rVal, sal_uInt8 nMemberId = 0 ) const override;
81     virtual bool            PutValue( const css::uno::Any& rVal, sal_uInt8 nMemberId ) override;
82 
83     virtual bool GetPresentation( SfxItemPresentation ePres,
84                                   MapUnit eCoreMetric,
85                                   MapUnit ePresMetric,
86                                   OUString &rText, const IntlWrapper& ) const override;
87 
88     virtual SvxLRSpaceItem*      Clone( SfxItemPool *pPool = nullptr ) const override;
89     virtual void                 ScaleMetrics( tools::Long nMult, tools::Long nDiv ) override;
90     virtual bool                 HasMetrics() const override;
91 
92     // The "layout interface":
93     inline void   SetLeft ( const tools::Long nL, const sal_uInt16 nProp = 100 );
94     inline void   SetRight( const tools::Long nR, const sal_uInt16 nProp = 100 );
95 
96     // Query/direct setting of the absolute values
GetLeft() const97     tools::Long GetLeft()  const { return nLeftMargin; }
GetRight() const98     tools::Long GetRight() const { return nRightMargin;}
SetLeftValue(const tools::Long nL)99     void SetLeftValue( const tools::Long nL ) { nTxtLeft = nLeftMargin = nL; }
SetRightValue(const tools::Long nR)100     void SetRightValue( const tools::Long nR ) { nRightMargin = nR; }
IsAutoFirst() const101     bool IsAutoFirst()  const { return bAutoFirst; }
SetAutoFirst(const bool bNew)102     void SetAutoFirst( const bool bNew ) { bAutoFirst = bNew; }
103 
IsExplicitZeroMarginValRight() const104     bool IsExplicitZeroMarginValRight()  const { return bExplicitZeroMarginValRight; }
IsExplicitZeroMarginValLeft() const105     bool IsExplicitZeroMarginValLeft()  const { return bExplicitZeroMarginValLeft; }
SetExplicitZeroMarginValRight(const bool eR)106     void SetExplicitZeroMarginValRight( const bool eR ) { bExplicitZeroMarginValRight = eR; }
SetExplicitZeroMarginValLeft(const bool eL)107     void SetExplicitZeroMarginValLeft( const bool eL ) { bExplicitZeroMarginValLeft = eL; }
GetPropLeft() const108     sal_uInt16 GetPropLeft()  const { return nPropLeftMargin; }
GetPropRight() const109     sal_uInt16 GetPropRight() const { return nPropRightMargin;}
110 
111     // The UI/text interface:
112     inline void SetTextLeft( const tools::Long nL, const sal_uInt16 nProp = 100 );
GetTextLeft() const113     tools::Long GetTextLeft() const { return nTxtLeft; }
114 
115     inline void   SetTextFirstLineOffset( const short nF, const sal_uInt16 nProp = 100 );
GetTextFirstLineOffset() const116     short  GetTextFirstLineOffset() const { return nFirstLineOffset; }
SetPropTextFirstLineOffset(const sal_uInt16 nProp)117     void SetPropTextFirstLineOffset( const sal_uInt16 nProp )
118                     { nPropFirstLineOffset = nProp; }
GetPropTextFirstLineOffset() const119     sal_uInt16 GetPropTextFirstLineOffset() const
120                     { return nPropFirstLineOffset; }
SetTextFirstLineOffsetValue(const short nValue)121     void SetTextFirstLineOffsetValue( const short nValue )
122                     { nFirstLineOffset = nValue; }
SetGutterMargin(const tools::Long nGutterMargin)123     void SetGutterMargin(const tools::Long nGutterMargin) { m_nGutterMargin = nGutterMargin; }
GetGutterMargin() const124     tools::Long GetGutterMargin() const { return m_nGutterMargin; }
SetRightGutterMargin(const tools::Long nRightGutterMargin)125     void SetRightGutterMargin(const tools::Long nRightGutterMargin) { m_nRightGutterMargin = nRightGutterMargin; }
GetRightGutterMargin() const126     tools::Long GetRightGutterMargin() const { return m_nRightGutterMargin; }
127 
128     void dumpAsXml(xmlTextWriterPtr pWriter) const override;
129     virtual boost::property_tree::ptree dumpAsJSON() const override;
130 };
131 
SetLeft(const tools::Long nL,const sal_uInt16 nProp)132 inline void SvxLRSpaceItem::SetLeft( const tools::Long nL, const sal_uInt16 nProp )
133 {
134     nLeftMargin = (nL * nProp) / 100;
135     nTxtLeft = nLeftMargin;
136     nPropLeftMargin = nProp;
137 }
SetRight(const tools::Long nR,const sal_uInt16 nProp)138 inline void SvxLRSpaceItem::SetRight( const tools::Long nR, const sal_uInt16 nProp )
139 {
140     if (0 == nR)
141     {
142         SetExplicitZeroMarginValRight(true);
143     }
144     nRightMargin = (nR * nProp) / 100;
145     nPropRightMargin = nProp;
146 }
SetTextFirstLineOffset(const short nF,const sal_uInt16 nProp)147 inline void SvxLRSpaceItem::SetTextFirstLineOffset( const short nF,
148                                                  const sal_uInt16 nProp )
149 {
150     nFirstLineOffset = short((tools::Long(nF) * nProp ) / 100);
151     nPropFirstLineOffset = nProp;
152     AdjustLeft();
153 }
154 
SetTextLeft(const tools::Long nL,const sal_uInt16 nProp)155 inline void SvxLRSpaceItem::SetTextLeft( const tools::Long nL, const sal_uInt16 nProp )
156 {
157     if (0 == nL)
158     {
159         SetExplicitZeroMarginValLeft(true);
160     }
161     nTxtLeft = (nL * nProp) / 100;
162     nPropLeftMargin = nProp;
163     AdjustLeft();
164 }
165 
166 #endif
167 
168 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
169