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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #ifndef INCLUDED_SW_SOURCE_CORE_TEXT_ATRHNDL_HXX
21 : #define INCLUDED_SW_SOURCE_CORE_TEXT_ATRHNDL_HXX
22 :
23 : #define INITIAL_NUM_ATTR 3
24 : #define NUM_ATTRIBUTE_STACKS 44
25 :
26 : #include <txatbase.hxx>
27 : #include <swfntcch.hxx>
28 :
29 : class SwAttrSet;
30 : class IDocumentSettingAccess;
31 : class SwViewShell;
32 : class SfxPoolItem;
33 : extern const sal_uInt8 StackPos[];
34 :
35 : /*************************************************************************
36 : * class SwAttrHandler
37 : *
38 : * Used by Attribute Iterators to organize attributes on stacks to
39 : * find the valid attribute in each category
40 : *************************************************************************/
41 :
42 : class SwAttrHandler
43 : {
44 : private:
45 :
46 : /*************************************************************************
47 : * class SwAttrStack
48 : *
49 : * Container for SwTxtAttr Objects
50 : *************************************************************************/
51 :
52 : class SwAttrStack
53 : {
54 : private:
55 : SwTxtAttr* pInitialArray[ INITIAL_NUM_ATTR ];
56 : SwTxtAttr** pArray;
57 : sal_uInt16 nCount; // number of elements on stack
58 : sal_uInt16 nSize; // number of positions in Array
59 :
60 : public:
61 : // Ctor, Dtor
62 : inline SwAttrStack();
63 0 : inline ~SwAttrStack() {
64 0 : if ( nSize > INITIAL_NUM_ATTR ) delete [] pArray; }
65 :
66 : // reset stack
67 0 : inline void Reset() { nCount = 0; };
68 :
69 : // insert on top
70 0 : inline void Push( const SwTxtAttr& rAttr ) { Insert( rAttr, nCount ); };
71 : // insert at specified position, take care for not inserting behind
72 : // the value returned by Count()
73 : void Insert( const SwTxtAttr& rAttr, const sal_uInt16 nPos );
74 :
75 : // remove specified attribute
76 : void Remove( const SwTxtAttr& rAttr );
77 :
78 : // get attribute from top if exists, otherwise 0
79 : const SwTxtAttr* Top() const;
80 :
81 : // number of elements on stack
82 0 : inline sal_uInt16 Count() const { return nCount; };
83 :
84 : // returns position of rAttr on Stack if found, otherwise USHRT_MAX
85 : // can be used for Remove of an attribute
86 : sal_uInt16 Pos( const SwTxtAttr& rAttr ) const;
87 : };
88 :
89 : SwAttrStack aAttrStack[ NUM_ATTRIBUTE_STACKS ]; // stack collection
90 : const SfxPoolItem* pDefaultArray[ NUM_DEFAULT_VALUES ];
91 : const IDocumentSettingAccess* mpIDocumentSettingAccess;
92 : const SwViewShell* mpShell;
93 :
94 : // This is the base font for the paragraph. It is stored in order to have
95 : // a template, if we have to restart the attribute evaluation
96 : SwFont* pFnt;
97 :
98 : bool bVertLayout;
99 :
100 : // change font according to pool item
101 : void FontChg(const SfxPoolItem& rItem, SwFont& rFnt, bool bPush );
102 :
103 : // push attribute to specified stack, returns true, if attribute has
104 : // been pushed on top of stack (important for stacks containing different
105 : // attributes with different priority and redlining)
106 : bool Push( const SwTxtAttr& rAttr, const SfxPoolItem& rItem );
107 :
108 : // apply top attribute on stack to font
109 : void ActivateTop( SwFont& rFnt, sal_uInt16 nStackPos );
110 :
111 : public:
112 : // Ctor
113 : SwAttrHandler();
114 : ~SwAttrHandler();
115 :
116 : // set default attributes to values in rAttrSet or from cache
117 : void Init( const SwAttrSet& rAttrSet,
118 : const IDocumentSettingAccess& rIDocumentSettingAccess,
119 : const SwViewShell* pShell );
120 : void Init( const SfxPoolItem** pPoolItem, const SwAttrSet* pAttrSet,
121 : const IDocumentSettingAccess& rIDocumentSettingAccess,
122 : const SwViewShell* pShell, SwFont& rFnt,
123 : bool bVertLayout );
124 :
125 : // remove everything from internal stacks, keep default data
126 : void Reset( );
127 :
128 : // insert specified attribute and change font
129 : void PushAndChg( const SwTxtAttr& rAttr, SwFont& rFnt );
130 :
131 : // remove specified attribute and reset font
132 : void PopAndChg( const SwTxtAttr& rAttr, SwFont& rFnt );
133 : void Pop( const SwTxtAttr& rAttr );
134 :
135 : // apply script dependent attributes
136 : // void ChangeScript( SwFont& rFnt, const sal_uInt8 nScr );
137 :
138 : // returns the default value for stack nStack
139 : inline const SfxPoolItem& GetDefault( const sal_uInt16 nAttribID ) const;
140 : // do not call these if you only used the small init function
141 : inline void ResetFont( SwFont& rFnt ) const;
142 : inline const SwFont* GetFont() const;
143 :
144 : void GetDefaultAscentAndHeight(SwViewShell* pShell,
145 : OutputDevice& rOut,
146 : sal_uInt16& nAscent,
147 : sal_uInt16& nHeight) const;
148 : };
149 :
150 : inline const SfxPoolItem& SwAttrHandler::GetDefault( const sal_uInt16 nAttribID ) const
151 : {
152 : OSL_ENSURE( nAttribID < RES_TXTATR_END,
153 : "this attrib does not ex."
154 : );
155 : OSL_ENSURE( pDefaultArray[ StackPos[ nAttribID ] ], "array not initialized" );
156 : return *pDefaultArray[ StackPos[ nAttribID ] ];
157 : }
158 :
159 0 : inline void SwAttrHandler::ResetFont( SwFont& rFnt ) const
160 : {
161 : OSL_ENSURE( pFnt, "ResetFont without a font" );
162 0 : if ( pFnt )
163 0 : rFnt = *pFnt;
164 0 : };
165 :
166 0 : inline const SwFont* SwAttrHandler::GetFont() const
167 : {
168 0 : return pFnt;
169 : };
170 :
171 : #endif
172 :
173 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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