vcl/source/edit/textdat2.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 #ifndef INCLUDED_VCL_SOURCE_EDIT_TEXTDAT2_HXX
  21 #define INCLUDED_VCL_SOURCE_EDIT_TEXTDAT2_HXX
  22
  23 #include <vcl/seleng.hxx>
  24 #include <vcl/cursor.hxx>
  25 #include <vcl/idle.hxx>
  26 #include <vcl/textdata.hxx>
  27
  28 #include <cstddef>
  29 #include <limits>
  30 #include <vector>
  31
  32 class TextNode;
  33 class TextView;
  34
  35 #define PORTIONKIND_TEXT        0
  36 #define PORTIONKIND_TAB         1
  37
  38 #define DELMODE_SIMPLE          0
  39 #define DELMODE_RESTOFWORD      1
  40 #define DELMODE_RESTOFCONTENT   2
  41
  42 #define DEL_LEFT    1
  43 #define DEL_RIGHT   2
  44 #define TRAVEL_X_DONTKNOW   0xFFFF
  45 #define MAXCHARSINPARA      0x3FFF-CHARPOSGROW
  46
  47 #define LINE_SEP    0x0A
  48
  49 class TETextPortion
  50 {
  51 private:
  52     sal_Int32       nLen;
  53     long            nWidth;
  54     sal_uInt8       nKind;
  55     bool            bRightToLeft;
  56
  57 public:
  58                 TETextPortion( sal_Int32 nL )
  59                     : nLen {nL}
  60                     , nWidth {-1}
  61                     , nKind {PORTIONKIND_TEXT}
  62                     , bRightToLeft {false}
  63                 {}
  64
  65     sal_Int32&  GetLen()                        { return nLen; }
  66     long&           GetWidth()                  { return nWidth; }
  67     sal_uInt8&      GetKind()                   { return nKind; }
  68     void            SetRightToLeft(bool b)      { bRightToLeft = b; }
  69     bool            IsRightToLeft() const       { return bRightToLeft; }
  70 };
  71
  72 class TETextPortionList
  73 {
  74 private:
  75     std::vector<std::unique_ptr<TETextPortion>> maPortions;
  76
  77 public:
  78     static constexpr auto npos = std::numeric_limits<std::size_t>::max();
  79
  80     TETextPortionList();
  81     ~TETextPortionList();
  82
  83     TETextPortion* operator[]( std::size_t nPos );
  84     std::vector<std::unique_ptr<TETextPortion>>::iterator begin();
  85     std::vector<std::unique_ptr<TETextPortion>>::const_iterator begin() const;
  86     std::vector<std::unique_ptr<TETextPortion>>::iterator end();
  87     std::vector<std::unique_ptr<TETextPortion>>::const_iterator end() const;
  88     bool empty() const;
  89     std::size_t size() const;
  90     std::vector<std::unique_ptr<TETextPortion>>::iterator erase( const std::vector<std::unique_ptr<TETextPortion>>::iterator& aIter );
  91     std::vector<std::unique_ptr<TETextPortion>>::iterator insert( const std::vector<std::unique_ptr<TETextPortion>>::iterator& aIter,
  92                                                   std::unique_ptr<TETextPortion> pTP );
  93     void push_back( std::unique_ptr<TETextPortion> pTP );
  94
  95     void    Reset();
  96     std::size_t FindPortion( sal_Int32 nCharPos, sal_Int32& rPortionStart, bool bPreferStartingPortion = false );
  97     void    DeleteFromPortion( std::size_t nDelFrom );
  98 };
  99
 100 struct TEWritingDirectionInfo
 101 {
 102     bool const         bLeftToRight;
 103     sal_Int32 const    nStartPos;
 104     sal_Int32 const    nEndPos;
 105     TEWritingDirectionInfo( bool LeftToRight, sal_Int32 Start, sal_Int32 End )
 106         : bLeftToRight {LeftToRight}
 107         , nStartPos {Start}
 108         , nEndPos {End}
 109     {}
 110 };
 111
 112 class TextLine
 113 {
 114 private:
 115     sal_Int32           mnStart;
 116     sal_Int32           mnEnd;
 117     std::size_t         mnStartPortion;
 118     std::size_t         mnEndPortion;
 119
 120     short               mnStartX;
 121
 122     bool                mbInvalid;  // for clever formatting/output
 123
 124 public:
 125                     TextLine()
 126                         : mnStart {0}
 127                         , mnEnd {0}
 128                         , mnStartPortion {0}
 129                         , mnEndPortion {0}
 130                         , mnStartX {0}
 131                         , mbInvalid {true}
 132                     {}
 133
 134     bool            IsIn( sal_Int32 nIndex, bool bInclEnd ) const
 135                         { return nIndex >= mnStart && ( bInclEnd ? nIndex <= mnEnd : nIndex < mnEnd ); }
 136
 137     void            SetStart( sal_Int32 n )         { mnStart = n; }
 138     sal_Int32       GetStart() const                { return mnStart; }
 139
 140     void            SetEnd( sal_Int32 n )           { mnEnd = n; }
 141     sal_Int32       GetEnd() const                  { return mnEnd; }
 142
 143     void            SetStartPortion( std::size_t n ) { mnStartPortion = n; }
 144     std::size_t     GetStartPortion() const         { return mnStartPortion; }
 145
 146     void            SetEndPortion( std::size_t n )  { mnEndPortion = n; }
 147     std::size_t     GetEndPortion() const           { return mnEndPortion; }
 148
 149     sal_Int32       GetLen() const                  { return mnEnd - mnStart; }
 150
 151     bool            IsInvalid() const               { return mbInvalid; }
 152     bool            IsValid() const                 { return !mbInvalid; }
 153     void            SetInvalid()                    { mbInvalid = true; }
 154     void            SetValid()                      { mbInvalid = false; }
 155
 156     short           GetStartX() const               { return mnStartX; }
 157     void            SetStartX( short n )            { mnStartX = n; }
 158
 159     inline bool operator == ( const TextLine& rLine ) const;
 160 };
 161
 162 inline bool TextLine::operator == ( const TextLine& rLine ) const
 163 {
 164     return mnStart == rLine.mnStart &&
 165            mnEnd == rLine.mnEnd &&
 166            mnStartPortion == rLine.mnStartPortion &&
 167            mnEndPortion == rLine.mnEndPortion;
 168 }
 169
 170 class TEParaPortion
 171 {
 172 private:
 173     TextNode* const         mpNode;
 174
 175     std::vector<TextLine>   maLines;
 176     TETextPortionList       maTextPortions;
 177     std::vector<TEWritingDirectionInfo> maWritingDirectionInfos;
 178
 179     sal_Int32               mnInvalidPosStart;
 180     sal_Int32               mnInvalidDiff;
 181
 182     bool                    mbInvalid;
 183     bool                    mbSimple;   // only type linearly
 184
 185 public:
 186                         TEParaPortion( TextNode* pNode );
 187                         ~TEParaPortion();
 188
 189     TEParaPortion( const TEParaPortion& ) = delete;
 190     void operator=( const TEParaPortion& ) = delete;
 191
 192     bool                IsInvalid() const           { return mbInvalid; }
 193     bool                IsSimpleInvalid() const     { return mbSimple; }
 194     void                SetNotSimpleInvalid()       { mbSimple = false; }
 195     void                SetValid()                  { mbInvalid = false; mbSimple = true;}
 196
 197     void                MarkInvalid( sal_Int32 nStart, sal_Int32 nDiff );
 198     void                MarkSelectionInvalid( sal_Int32 nStart );
 199
 200     sal_Int32           GetInvalidPosStart() const  { return mnInvalidPosStart; }
 201     sal_Int32           GetInvalidDiff() const      { return mnInvalidDiff; }
 202
 203     TextNode*           GetNode() const             { return mpNode; }
 204     std::vector<TextLine>& GetLines()               { return maLines; }
 205     TETextPortionList&  GetTextPortions()           { return maTextPortions; }
 206     std::vector<TEWritingDirectionInfo>& GetWritingDirectionInfos() { return maWritingDirectionInfos; }
 207
 208     std::vector<TextLine>::size_type GetLineNumber( sal_Int32 nIndex, bool bInclEnd );
 209     void                CorrectValuesBehindLastFormattedLine( sal_uInt16 nLastFormattedLine );
 210 };
 211
 212 class TEParaPortions
 213 {
 214 private:
 215     std::vector<std::unique_ptr<TEParaPortion>> mvData;
 216
 217 public:
 218                     TEParaPortions() : mvData() {}
 219                     ~TEParaPortions();
 220
 221     sal_uInt32      Count() const { return static_cast<sal_uInt32>(mvData.size()); }
 222     TEParaPortion*  GetObject( sal_uInt32 nIndex ) { return mvData[nIndex].get(); }
 223     void            Insert( TEParaPortion* pObject, sal_uInt32 nPos ) { mvData.emplace( mvData.begin()+nPos, pObject ); }
 224     void            Remove( sal_uInt32 nPos ) { mvData.erase( mvData.begin()+nPos ); }
 225 };
 226
 227 class TextSelFunctionSet: public FunctionSet
 228 {
 229 private:
 230     TextView*       mpView;
 231
 232 public:
 233                     TextSelFunctionSet( TextView* pView );
 234
 235     virtual void    BeginDrag() override;
 236
 237     virtual void    CreateAnchor() override;
 238
 239     virtual void    SetCursorAtPoint( const Point& rPointPixel, bool bDontSelectAtCursor = false ) override;
 240
 241     virtual bool    IsSelectionAtPoint( const Point& rPointPixel ) override;
 242     virtual void    DeselectAll() override;
 243
 244     virtual void    DeselectAtPoint( const Point& ) override;
 245     virtual void    DestroyAnchor() override;
 246 };
 247
 248 class IdleFormatter : public Idle
 249 {
 250 private:
 251     TextView*   mpView;
 252     sal_uInt16      mnRestarts;
 253
 254 public:
 255                 IdleFormatter();
 256                 virtual ~IdleFormatter() override;
 257
 258     void        DoIdleFormat( TextView* pV, sal_uInt16 nMaxRestarts );
 259     void        ForceTimeout();
 260     TextView*   GetView()       { return mpView; }
 261 };
 262
 263 struct TextDDInfo
 264 {
 265     vcl::Cursor     maCursor;
 266     TextPaM         maDropPos;
 267
 268     bool            mbStarterOfDD;
 269     bool            mbVisCursor;
 270
 271     TextDDInfo()
 272         : maCursor()
 273         , maDropPos()
 274         , mbStarterOfDD {false}
 275         , mbVisCursor {false}
 276     {
 277         maCursor.SetStyle( CURSOR_SHADOW );
 278     }
 279 };
 280
 281 #endif // INCLUDED_VCL_SOURCE_EDIT_TEXTDAT2_HXX
 282
 283 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */