vcl/source/edit/textdoc.hxx

   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 #pragma once
  21
  22 #include <rtl/ustring.hxx>
  23 #include <vcl/textdata.hxx>
  24 #include <vcl/txtattr.hxx>
  25 #include <vector>
  26 #include <memory>
  27
  28 class TextCharAttribList
  29 {
  30 private:
  31     TextCharAttribList(const TextCharAttribList&) = delete;
  32     TextCharAttribList& operator=(const TextCharAttribList&) = delete;
  33
  34     std::vector<std::unique_ptr<TextCharAttrib> > maAttribs;
  35     bool            mbHasEmptyAttribs;
  36
  37 public:
  38                     TextCharAttribList();
  39                     ~TextCharAttribList();
  40
  41     void            Clear();
  42     sal_uInt16          Count() const               { return maAttribs.size(); }
  43
  44     const TextCharAttrib& GetAttrib( sal_uInt16 n ) const { return *maAttribs[n]; }
  45     TextCharAttrib& GetAttrib( sal_uInt16 n )       { return *maAttribs[n]; }
  46     std::unique_ptr<TextCharAttrib>  RemoveAttrib( sal_uInt16 n )
  47     {
  48         std::unique_ptr<TextCharAttrib> pReleased = std::move(maAttribs[n]);
  49         maAttribs.erase( maAttribs.begin() + n );
  50         return pReleased;
  51     }
  52
  53     void            InsertAttrib( std::unique_ptr<TextCharAttrib> pAttrib );
  54
  55     void            DeleteEmptyAttribs();
  56     void            ResortAttribs();
  57
  58     bool&           HasEmptyAttribs()       { return mbHasEmptyAttribs; }
  59
  60     TextCharAttrib* FindAttrib( sal_uInt16 nWhich, sal_Int32 nPos );
  61     TextCharAttrib* FindEmptyAttrib( sal_uInt16 nWhich, sal_Int32 nPos );
  62     bool            HasBoundingAttrib( sal_Int32 nBound );
  63 };
  64
  65 class TextNode
  66 {
  67     OUString            maText;
  68     TextCharAttribList  maCharAttribs;
  69
  70     void                ExpandAttribs( sal_Int32 nIndex, sal_Int32 nNewChars );
  71     void                CollapseAttribs( sal_Int32 nIndex, sal_Int32 nDelChars );
  72
  73 public:
  74                         TextNode( OUString aText );
  75
  76     TextNode( const TextNode& ) = delete;
  77     void operator=( const TextNode& ) = delete;
  78
  79     const OUString&     GetText() const         { return maText; }
  80
  81     const TextCharAttrib&   GetCharAttrib(sal_uInt16 nPos) const  { return maCharAttribs.GetAttrib(nPos); }
  82     const TextCharAttribList&   GetCharAttribs() const  { return maCharAttribs; }
  83     TextCharAttribList&         GetCharAttribs()        { return maCharAttribs; }
  84
  85     void                InsertText( sal_Int32 nPos, std::u16string_view rText );
  86     void                InsertText( sal_Int32 nPos, sal_Unicode c );
  87     void                RemoveText( sal_Int32 nPos, sal_Int32 nChars );
  88
  89     std::unique_ptr<TextNode> Split( sal_Int32 nPos );
  90     void                Append( const TextNode& rNode );
  91 };
  92
  93 class TextDoc
  94 {
  95     std::vector<std::unique_ptr<TextNode>>  maTextNodes;
  96     sal_uInt16              mnLeftMargin;
  97
  98     void                DestroyTextNodes();
  99
 100 public:
 101                         TextDoc();
 102                         ~TextDoc();
 103
 104     void                Clear();
 105
 106     std::vector<std::unique_ptr<TextNode>>&       GetNodes()              { return maTextNodes; }
 107     const std::vector<std::unique_ptr<TextNode>>& GetNodes() const        { return maTextNodes; }
 108
 109     void                RemoveChars( const TextPaM& rPaM, sal_Int32 nChars );
 110     TextPaM             InsertText( const TextPaM& rPaM, sal_Unicode c );
 111     TextPaM             InsertText( const TextPaM& rPaM, std::u16string_view rStr );
 112
 113     TextPaM             InsertParaBreak( const TextPaM& rPaM );
 114     TextPaM             ConnectParagraphs( TextNode* pLeft, const TextNode* pRight );
 115
 116     sal_Int32           GetTextLen( const sal_Unicode* pSep, const TextSelection* pSel = nullptr ) const;
 117     OUString            GetText( const sal_Unicode* pSep ) const;
 118     OUString            GetText( sal_uInt32 nPara ) const;
 119
 120     void                SetLeftMargin( sal_uInt16 n )   { mnLeftMargin = n; }
 121     sal_uInt16          GetLeftMargin() const       { return mnLeftMargin; }
 122
 123     bool            IsValidPaM( const TextPaM& rPaM );
 124 };
 125
 126 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */