1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #ifndef _ATRHNDL_HXX 25 #define _ATRHNDL_HXX 26 27 #define INITIAL_NUM_ATTR 3 28 #define NUM_ATTRIBUTE_STACKS 40 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(); 67 inline ~SwAttrStack() { 68 if ( nSize > INITIAL_NUM_ATTR ) delete [] pArray; } 69 70 // reset stack 71 inline void Reset() { nCount = 0; }; 72 73 // insert on top 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 86 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 }; 153 154 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 } 162 163 inline void SwAttrHandler::ResetFont( SwFont& rFnt ) const 164 { 165 ASSERT( pFnt, "ResetFont without a font" ); 166 if ( pFnt ) 167 rFnt = *pFnt; 168 }; 169 170 inline const SwFont* SwAttrHandler::GetFont() const 171 { 172 return pFnt; 173 }; 174 175 #endif 176