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2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
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11 * http://www.apache.org/licenses/LICENSE-2.0
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21
22
23
24 #ifndef _ATRHNDL_HXX
25 #define _ATRHNDL_HXX
26
27 #define INITIAL_NUM_ATTR 3
28 #define NUM_ATTRIBUTE_STACKS 41
29
30 #include <txatbase.hxx>
31 #include <swfntcch.hxx>
32
33 class SwAttrSet;
34 class IDocumentSettingAccess;
35 class ViewShell;
36 class SfxPoolItem;
37 extern const sal_uInt8 StackPos[];
38
39 /*************************************************************************
40 * class SwAttrHandler
41 *
42 * Used by Attribute Iterators to organize attributes on stacks to
43 * find the valid attribute in each category
44 *************************************************************************/
45
46 class SwAttrHandler
47 {
48 private:
49
50 /*************************************************************************
51 * class SwAttrStack
52 *
53 * Container for SwTxtAttr Objects
54 *************************************************************************/
55
56 class SwAttrStack
57 {
58 private:
59 SwTxtAttr* pInitialArray[ INITIAL_NUM_ATTR ];
60 SwTxtAttr** pArray;
61 sal_uInt16 nCount; // number of elements on stack
62 sal_uInt16 nSize; // number of positions in Array
63
64 public:
65 // Ctor, Dtor
66 inline SwAttrStack();
~SwAttrStack()67 inline ~SwAttrStack() {
68 if ( nSize > INITIAL_NUM_ATTR ) delete [] pArray; }
69
70 // reset stack
Reset()71 inline void Reset() { nCount = 0; };
72
73 // insert on top
Push(const SwTxtAttr & rAttr)74 inline void Push( const SwTxtAttr& rAttr ) { Insert( rAttr, nCount ); };
75 // insert at specified position, take care for not inserting behind
76 // the value returned by Count()
77 void Insert( const SwTxtAttr& rAttr, const sal_uInt16 nPos );
78
79 // remove specified attribute
80 void Remove( const SwTxtAttr& rAttr );
81
82 // get attribute from top if exists, otherwise 0
83 const SwTxtAttr* Top() const;
84
85 // number of elements on stack
Count() const86 inline sal_uInt16 Count() const { return nCount; };
87
88 // returns position of rAttr on Stack if found, otherwise USHRT_MAX
89 // can be used for Remove of an attribute
90 sal_uInt16 Pos( const SwTxtAttr& rAttr ) const;
91 };
92
93 SwAttrStack aAttrStack[ NUM_ATTRIBUTE_STACKS ]; // stack collection
94 const SfxPoolItem* pDefaultArray[ NUM_DEFAULT_VALUES ];
95 const IDocumentSettingAccess* mpIDocumentSettingAccess;
96 const ViewShell* mpShell;
97
98 // This is the base font for the paragraph. It is stored in order to have
99 // a template, if we have to restart the attribute evaluation
100 SwFont* pFnt;
101
102 sal_Bool bVertLayout;
103
104 // change font according to pool item
105 void FontChg(const SfxPoolItem& rItem, SwFont& rFnt, sal_Bool bPush );
106
107 // push attribute to specified stack, returns true, if attribute has
108 // been pushed on top of stack (important for stacks containing different
109 // attributes with different priority and redlining)
110 sal_Bool Push( const SwTxtAttr& rAttr, const SfxPoolItem& rItem );
111
112 // apply top attribute on stack to font
113 void ActivateTop( SwFont& rFnt, sal_uInt16 nStackPos );
114
115 public:
116 // Ctor
117 SwAttrHandler();
118 ~SwAttrHandler();
119
120 // set default attributes to values in rAttrSet or from cache
121 void Init( const SwAttrSet& rAttrSet,
122 const IDocumentSettingAccess& rIDocumentSettingAccess,
123 const ViewShell* pShell );
124 void Init( const SfxPoolItem** pPoolItem, const SwAttrSet* pAttrSet,
125 const IDocumentSettingAccess& rIDocumentSettingAccess,
126 const ViewShell* pShell, SwFont& rFnt,
127 sal_Bool bVertLayout );
128
129 // remove everything from internal stacks, keep default data
130 void Reset( );
131
132 // insert specified attribute and change font
133 void PushAndChg( const SwTxtAttr& rAttr, SwFont& rFnt );
134
135 // remove specified attribute and reset font
136 void PopAndChg( const SwTxtAttr& rAttr, SwFont& rFnt );
137 void Pop( const SwTxtAttr& rAttr );
138
139 // apply script dependent attributes
140 // void ChangeScript( SwFont& rFnt, const sal_uInt8 nScr );
141
142 // returns the default value for stack nStack
143 inline const SfxPoolItem& GetDefault( const sal_uInt16 nAttribID ) const;
144 // do not call these if you only used the small init function
145 inline void ResetFont( SwFont& rFnt ) const;
146 inline const SwFont* GetFont() const;
147
148 void GetDefaultAscentAndHeight(ViewShell* pShell,
149 OutputDevice& rOut,
150 sal_uInt16& nAscent,
151 sal_uInt16& nHeight) const;
152 };
153
GetDefault(const sal_uInt16 nAttribID) const154 inline const SfxPoolItem& SwAttrHandler::GetDefault( const sal_uInt16 nAttribID ) const
155 {
156 ASSERT( nAttribID < RES_TXTATR_END,
157 "this attrib does not ex."
158 );
159 ASSERT( pDefaultArray[ StackPos[ nAttribID ] ], "array not initialized" );
160 return *pDefaultArray[ StackPos[ nAttribID ] ];
161 }
162
ResetFont(SwFont & rFnt) const163 inline void SwAttrHandler::ResetFont( SwFont& rFnt ) const
164 {
165 ASSERT( pFnt, "ResetFont without a font" );
166 if ( pFnt )
167 rFnt = *pFnt;
168 };
169
GetFont() const170 inline const SwFont* SwAttrHandler::GetFont() const
171 {
172 return pFnt;
173 };
174
175 #endif
176