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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 : #include <viewopt.hxx>
21 : #include <SwPortionHandler.hxx>
22 : #include <inftxt.hxx>
23 : #include <porexp.hxx>
24 :
25 0 : sal_Int32 SwExpandPortion::GetCrsrOfst( const sal_uInt16 nOfst ) const
26 0 : { return SwLinePortion::GetCrsrOfst( nOfst ); }
27 :
28 0 : bool SwExpandPortion::GetExpText( const SwTextSizeInfo&, OUString &rText ) const
29 : {
30 0 : rText.clear();
31 : // Do not do: return 0 != rText.Len();
32 : // Reason being: empty fields replace CH_TXTATR with an empty string
33 0 : return true;
34 : }
35 :
36 0 : void SwExpandPortion::HandlePortion( SwPortionHandler& rPH ) const
37 : {
38 0 : rPH.Special( GetLen(), OUString(), GetWhichPor() );
39 0 : }
40 :
41 0 : SwPosSize SwExpandPortion::GetTextSize( const SwTextSizeInfo &rInf ) const
42 : {
43 0 : SwTextSlot aDiffText( &rInf, this, false, false );
44 0 : return rInf.GetTextSize();
45 : }
46 :
47 750 : bool SwExpandPortion::Format( SwTextFormatInfo &rInf )
48 : {
49 750 : SwTextSlot aDiffText( &rInf, this, true, false );
50 750 : const sal_Int32 nFullLen = rInf.GetLen();
51 :
52 : // As odd as it may seem: the query for GetLen() must return
53 : // false due to the ExpandPortions _after_ the aDiffText (see SoftHyphs)
54 : // caused by the SetFull ...
55 750 : if( !nFullLen )
56 : {
57 : // Do not Init(), because we need height and ascent
58 0 : Width(0);
59 0 : return false;
60 : }
61 750 : return SwTextPortion::Format( rInf );
62 : }
63 :
64 2225 : void SwExpandPortion::Paint( const SwTextPaintInfo &rInf ) const
65 : {
66 2225 : SwTextSlot aDiffText( &rInf, this, true, true );
67 4450 : const SwFont aOldFont = *rInf.GetFont();
68 2225 : if( GetJoinBorderWithPrev() )
69 0 : const_cast<SwTextPaintInfo&>(rInf).GetFont()->SetLeftBorder(0);
70 2225 : if( GetJoinBorderWithNext() )
71 0 : const_cast<SwTextPaintInfo&>(rInf).GetFont()->SetRightBorder(0);
72 :
73 2225 : rInf.DrawBackBrush( *this );
74 2225 : rInf.DrawBorder( *this );
75 :
76 : // Do we have to repaint a post it portion?
77 2225 : if( rInf.OnWin() && pPortion && !pPortion->Width() )
78 85 : pPortion->PrePaint( rInf, this );
79 :
80 : // The contents of field portions is not considered during the
81 : // calculation of the directions. Therefore we let vcl handle
82 : // the calculation by removing the BIDI_STRONG_FLAG temporarily.
83 4450 : SwLayoutModeModifier aLayoutModeModifier( *rInf.GetOut() );
84 2225 : aLayoutModeModifier.SetAuto();
85 :
86 : // ST2
87 2225 : if ( rInf.GetSmartTags() || rInf.GetGrammarCheckList() )
88 : rInf.DrawMarkedText( *this, rInf.GetLen(), false, false,
89 0 : 0 != rInf.GetSmartTags(), 0 != rInf.GetGrammarCheckList() );
90 : else
91 2225 : rInf.DrawText( *this, rInf.GetLen(), false );
92 :
93 2225 : if( GetJoinBorderWithPrev() || GetJoinBorderWithNext() )
94 2225 : *const_cast<SwTextPaintInfo&>(rInf).GetFont() = aOldFont;
95 2225 : }
96 :
97 849 : SwLinePortion *SwBlankPortion::Compress() { return this; }
98 :
99 : /**
100 : * If a Line is full of HardBlanks and overflows, we must not generate
101 : * underflows!
102 : * Causes problems with Fly
103 : */
104 30 : sal_uInt16 SwBlankPortion::MayUnderflow( const SwTextFormatInfo &rInf,
105 : sal_Int32 nIdx, bool bUnderflow )
106 : {
107 30 : if( rInf.StopUnderflow() )
108 0 : return 0;
109 30 : const SwLinePortion *pPos = rInf.GetRoot();
110 30 : if( pPos->GetPortion() )
111 30 : pPos = pPos->GetPortion();
112 60 : while( pPos && pPos->IsBlankPortion() )
113 0 : pPos = pPos->GetPortion();
114 30 : if( !pPos || !rInf.GetIdx() || ( !pPos->GetLen() && pPos == rInf.GetRoot() ) )
115 0 : return 0; // There are just BlankPortions left
116 :
117 : // If a Blank is preceding us, we do not need to trigger underflow
118 : // If a Blank is succeeding us, we do not need to pass on the underflow
119 30 : if (bUnderflow && nIdx + 1 < rInf.GetText().getLength() && CH_BLANK == rInf.GetText()[nIdx + 1])
120 0 : return 0;
121 30 : if( nIdx && !const_cast<SwTextFormatInfo&>(rInf).GetFly() )
122 : {
123 165 : while( pPos && !pPos->IsFlyPortion() )
124 105 : pPos = pPos->GetPortion();
125 30 : if( !pPos )
126 : {
127 : // We check to see if there are useful line breaks, blanks or fields etc. left
128 : // In case there still are some, no underflow
129 : // If there are Flys, we still allow the underflow
130 30 : sal_Int32 nBlank = nIdx;
131 156 : while( --nBlank > rInf.GetLineStart() )
132 : {
133 126 : const sal_Unicode cCh = rInf.GetChar( nBlank );
134 156 : if( CH_BLANK == cCh ||
135 96 : (( CH_TXTATR_BREAKWORD == cCh || CH_TXTATR_INWORD == cCh )
136 0 : && rInf.HasHint( nBlank ) ) )
137 30 : break;
138 : }
139 30 : if( nBlank <= rInf.GetLineStart() )
140 0 : return 0;
141 : }
142 : }
143 : sal_Unicode cCh;
144 30 : if( nIdx < 2 || CH_BLANK == (cCh = rInf.GetChar( nIdx - 1 )) )
145 6 : return 1;
146 24 : if( CH_BREAK == cCh )
147 0 : return 0;
148 24 : return 2;
149 : }
150 :
151 : /**
152 : * Format End of Line
153 : */
154 0 : void SwBlankPortion::FormatEOL( SwTextFormatInfo &rInf )
155 : {
156 0 : sal_uInt16 nMay = MayUnderflow( rInf, rInf.GetIdx() - nLineLength, true );
157 0 : if( nMay )
158 : {
159 0 : if( nMay > 1 )
160 : {
161 0 : if( rInf.GetLast() == this )
162 0 : rInf.SetLast( FindPrevPortion( rInf.GetRoot() ) );
163 0 : rInf.X( rInf.X() - PrtWidth() );
164 0 : rInf.SetIdx( rInf.GetIdx() - GetLen() );
165 : }
166 0 : Truncate();
167 0 : rInf.SetUnderflow( this );
168 0 : if( rInf.GetLast()->IsKernPortion() )
169 0 : rInf.SetUnderflow( rInf.GetLast() );
170 : }
171 0 : }
172 :
173 : /**
174 : * Pass on the underflows and trigger them ourselves!
175 : */
176 765 : bool SwBlankPortion::Format( SwTextFormatInfo &rInf )
177 : {
178 765 : const bool bFull = rInf.IsUnderflow() || SwExpandPortion::Format( rInf );
179 765 : if( bFull && MayUnderflow( rInf, rInf.GetIdx(), rInf.IsUnderflow() ) )
180 : {
181 15 : Truncate();
182 15 : rInf.SetUnderflow( this );
183 15 : if( rInf.GetLast()->IsKernPortion() )
184 0 : rInf.SetUnderflow( rInf.GetLast() );
185 : }
186 765 : return bFull;
187 : }
188 :
189 202 : void SwBlankPortion::Paint( const SwTextPaintInfo &rInf ) const
190 : {
191 202 : if( !bMulti ) // No gray background for multiportion brackets
192 195 : rInf.DrawViewOpt( *this, POR_BLANK );
193 202 : SwExpandPortion::Paint( rInf );
194 202 : }
195 :
196 1047 : bool SwBlankPortion::GetExpText( const SwTextSizeInfo&, OUString &rText ) const
197 : {
198 1047 : rText = OUString(cChar);
199 1047 : return true;
200 : }
201 :
202 0 : void SwBlankPortion::HandlePortion( SwPortionHandler& rPH ) const
203 : {
204 0 : rPH.Special( GetLen(), OUString( cChar ), GetWhichPor() );
205 0 : }
206 :
207 121 : SwPostItsPortion::SwPostItsPortion( bool bScrpt )
208 121 : : bScript( bScrpt )
209 : {
210 121 : nLineLength = 1;
211 121 : SetWhichPor( POR_POSTITS );
212 121 : }
213 :
214 38 : void SwPostItsPortion::Paint( const SwTextPaintInfo &rInf ) const
215 : {
216 38 : if( rInf.OnWin() && Width() )
217 24 : rInf.DrawPostIts( *this, IsScript() );
218 38 : }
219 :
220 24 : sal_uInt16 SwPostItsPortion::GetViewWidth( const SwTextSizeInfo &rInf ) const
221 : {
222 : // Unbelievable: PostIts are always visible
223 24 : return rInf.OnWin() ? SwViewOption::GetPostItsWidth( rInf.GetOut() ) : 0;
224 : }
225 :
226 121 : bool SwPostItsPortion::Format( SwTextFormatInfo &rInf )
227 : {
228 121 : const bool bRet = SwLinePortion::Format( rInf );
229 : // PostIts should not have an effect on line height etc.
230 121 : SetAscent( 1 );
231 121 : Height( 1 );
232 121 : return bRet;
233 : }
234 :
235 28 : bool SwPostItsPortion::GetExpText( const SwTextSizeInfo &rInf, OUString &rText ) const
236 : {
237 28 : if( rInf.OnWin() && rInf.GetOpt().IsPostIts() )
238 0 : rText = " ";
239 : else
240 28 : rText.clear();
241 28 : return true;
242 177 : }
243 :
244 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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