summaryrefslogtreecommitdiffstats
path: root/vcl/source/edit/textdat2.hxx
blob: c620f91ad4e2fc92ff4aee166ef477cd3919ecee (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#ifndef INCLUDED_VCL_SOURCE_EDIT_TEXTDAT2_HXX
#define INCLUDED_VCL_SOURCE_EDIT_TEXTDAT2_HXX

#include <vcl/seleng.hxx>
#include <vcl/cursor.hxx>
#include <vcl/idle.hxx>
#include <vcl/textdata.hxx>

#include <cstddef>
#include <limits>
#include <vector>

class TextNode;
class TextView;

#define PORTIONKIND_TEXT        0
#define PORTIONKIND_TAB         1

#define DELMODE_SIMPLE          0
#define DELMODE_RESTOFWORD      1
#define DELMODE_RESTOFCONTENT   2

#define DEL_LEFT    1
#define DEL_RIGHT   2
#define TRAVEL_X_DONTKNOW   0xFFFF
#define MAXCHARSINPARA      0x3FFF-CHARPOSGROW

#define LINE_SEP    0x0A

class TETextPortion
{
private:
    tools::Long     nWidth;
    sal_Int32       nLen;
    sal_uInt8       nKind;
    bool            bRightToLeft;

public:
                TETextPortion( sal_Int32 nL )
                    : nWidth {-1}
                    , nLen {nL}
                    , nKind {PORTIONKIND_TEXT}
                    , bRightToLeft {false}
                {}

    sal_Int32&  GetLen()                        { return nLen; }
    sal_Int32  GetLen() const                   { return nLen; }
    tools::Long&           GetWidth()                  { return nWidth; }
    sal_uInt8&      GetKind()                   { return nKind; }
    void            SetRightToLeft(bool b)      { bRightToLeft = b; }
    bool            IsRightToLeft() const       { return bRightToLeft; }
};

class TETextPortionList
{
private:
    std::vector<TETextPortion> maPortions;

public:
    static constexpr auto npos = std::numeric_limits<std::size_t>::max();

    TETextPortionList();
    ~TETextPortionList();

    TETextPortion& operator[]( std::size_t nPos );
    std::vector<TETextPortion>::iterator begin();
    std::vector<TETextPortion>::const_iterator begin() const;
    std::vector<TETextPortion>::iterator end();
    std::vector<TETextPortion>::const_iterator end() const;
    bool empty() const;
    std::size_t size() const;
    std::vector<TETextPortion>::iterator erase( const std::vector<TETextPortion>::iterator& aIter );
    std::vector<TETextPortion>::iterator insert( const std::vector<TETextPortion>::iterator& aIter,
                                                  const TETextPortion& rTP );
    void push_back( const TETextPortion & aTP );

    void    Reset();
    std::size_t FindPortion( sal_Int32 nCharPos, sal_Int32& rPortionStart, bool bPreferStartingPortion = false );
    void    DeleteFromPortion( std::size_t nDelFrom );
};

struct TEWritingDirectionInfo
{
    bool         bLeftToRight;
    sal_Int32    nStartPos;
    sal_Int32    nEndPos;
    TEWritingDirectionInfo( bool LeftToRight, sal_Int32 Start, sal_Int32 End )
        : bLeftToRight {LeftToRight}
        , nStartPos {Start}
        , nEndPos {End}
    {}
};

class TextLine
{
private:
    sal_Int32           mnStart;
    sal_Int32           mnEnd;
    std::size_t         mnStartPortion;
    std::size_t         mnEndPortion;

    short               mnStartX;

    bool                mbInvalid;  // for clever formatting/output

public:
                    TextLine()
                        : mnStart {0}
                        , mnEnd {0}
                        , mnStartPortion {0}
                        , mnEndPortion {0}
                        , mnStartX {0}
                        , mbInvalid {true}
                    {}

    bool            IsIn( sal_Int32 nIndex, bool bInclEnd ) const
                        { return nIndex >= mnStart && ( bInclEnd ? nIndex <= mnEnd : nIndex < mnEnd ); }

    void            SetStart( sal_Int32 n )         { mnStart = n; }
    sal_Int32       GetStart() const                { return mnStart; }

    void            SetEnd( sal_Int32 n )           { mnEnd = n; }
    sal_Int32       GetEnd() const                  { return mnEnd; }

    void            SetStartPortion( std::size_t n ) { mnStartPortion = n; }
    std::size_t     GetStartPortion() const         { return mnStartPortion; }

    void            SetEndPortion( std::size_t n )  { mnEndPortion = n; }
    std::size_t     GetEndPortion() const           { return mnEndPortion; }

    sal_Int32       GetLen() const                  { return mnEnd - mnStart; }

    bool            IsInvalid() const               { return mbInvalid; }
    bool            IsValid() const                 { return !mbInvalid; }
    void            SetInvalid()                    { mbInvalid = true; }
    void            SetValid()                      { mbInvalid = false; }

    short           GetStartX() const               { return mnStartX; }
    void            SetStartX( short n )            { mnStartX = n; }

    inline bool operator == ( const TextLine& rLine ) const;
};

inline bool TextLine::operator == ( const TextLine& rLine ) const
{
    return mnStart == rLine.mnStart &&
           mnEnd == rLine.mnEnd &&
           mnStartPortion == rLine.mnStartPortion &&
           mnEndPortion == rLine.mnEndPortion;
}

class TEParaPortion
{
private:
    TextNode*               mpNode;

    std::vector<TextLine>   maLines;
    TETextPortionList       maTextPortions;
    std::vector<TEWritingDirectionInfo> maWritingDirectionInfos;

    sal_Int32               mnInvalidPosStart;
    sal_Int32               mnInvalidDiff;

    bool                    mbInvalid;
    bool                    mbSimple;   // only type linearly

public:
                        TEParaPortion( TextNode* pNode );
                        ~TEParaPortion();

    TEParaPortion( const TEParaPortion& ) = delete;
    void operator=( const TEParaPortion& ) = delete;

    bool                IsInvalid() const           { return mbInvalid; }
    bool                IsSimpleInvalid() const     { return mbSimple; }
    void                SetNotSimpleInvalid()       { mbSimple = false; }
    void                SetValid()                  { mbInvalid = false; mbSimple = true;}

    void                MarkInvalid( sal_Int32 nStart, sal_Int32 nDiff );
    void                MarkSelectionInvalid( sal_Int32 nStart );

    sal_Int32           GetInvalidPosStart() const  { return mnInvalidPosStart; }
    sal_Int32           GetInvalidDiff() const      { return mnInvalidDiff; }

    TextNode*           GetNode() const             { return mpNode; }
    std::vector<TextLine>& GetLines()               { return maLines; }
    TETextPortionList&  GetTextPortions()           { return maTextPortions; }
    std::vector<TEWritingDirectionInfo>& GetWritingDirectionInfos() { return maWritingDirectionInfos; }

    std::vector<TextLine>::size_type GetLineNumber( sal_Int32 nIndex, bool bInclEnd );
    void                CorrectValuesBehindLastFormattedLine( sal_uInt16 nLastFormattedLine );
};

class TEParaPortions
{
private:
    std::vector<std::unique_ptr<TEParaPortion>> mvData;

public:
                    TEParaPortions() : mvData() {}
                    ~TEParaPortions();

    sal_uInt32      Count() const { return static_cast<sal_uInt32>(mvData.size()); }
    TEParaPortion*  GetObject( sal_uInt32 nIndex ) { return mvData[nIndex].get(); }
    void            Insert( TEParaPortion* pObject, sal_uInt32 nPos ) { mvData.emplace( mvData.begin()+nPos, pObject ); }
    void            Remove( sal_uInt32 nPos ) { mvData.erase( mvData.begin()+nPos ); }
};

class TextSelFunctionSet: public FunctionSet
{
private:
    TextView*       mpView;

public:
                    TextSelFunctionSet( TextView* pView );

    virtual void    BeginDrag() override;

    virtual void    CreateAnchor() override;

    virtual void    SetCursorAtPoint( const Point& rPointPixel, bool bDontSelectAtCursor = false ) override;

    virtual bool    IsSelectionAtPoint( const Point& rPointPixel ) override;
    virtual void    DeselectAll() override;

    virtual void    DeselectAtPoint( const Point& ) override;
    virtual void    DestroyAnchor() override;
};

class IdleFormatter : public Idle
{
private:
    TextView*   mpView;
    sal_uInt16      mnRestarts;

public:
                IdleFormatter();
                virtual ~IdleFormatter() override;

    void        DoIdleFormat( TextView* pV, sal_uInt16 nMaxRestarts );
    void        ForceTimeout();
    TextView*   GetView()       { return mpView; }
};

struct TextDDInfo
{
    vcl::Cursor     maCursor;
    TextPaM         maDropPos;

    bool            mbStarterOfDD;
    bool            mbVisCursor;

    TextDDInfo()
        : maCursor()
        , maDropPos()
        , mbStarterOfDD {false}
        , mbVisCursor {false}
    {
        maCursor.SetStyle( CURSOR_SHADOW );
    }
};

#endif // INCLUDED_VCL_SOURCE_EDIT_TEXTDAT2_HXX

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */