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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 "swrect.hxx"
21 : #include "paratr.hxx"
22 : #include "viewopt.hxx"
23 : #include <SwPortionHandler.hxx>
24 : #include "porglue.hxx"
25 : #include "inftxt.hxx"
26 : #include "porlay.hxx"
27 : #include "porfly.hxx"
28 : #include <comphelper/string.hxx>
29 :
30 20583 : SwGluePortion::SwGluePortion( const sal_uInt16 nInitFixWidth )
31 20583 : : nFixWidth( nInitFixWidth )
32 : {
33 20583 : PrtWidth( nFixWidth );
34 20583 : SetWhichPor( POR_GLUE );
35 20583 : }
36 :
37 0 : sal_Int32 SwGluePortion::GetCrsrOfst( const sal_uInt16 nOfst ) const
38 : {
39 0 : if( !GetLen() || nOfst > GetLen() || !Width() )
40 0 : return SwLinePortion::GetCrsrOfst( nOfst );
41 : else
42 0 : return nOfst / (Width() / GetLen());
43 : }
44 :
45 0 : SwPosSize SwGluePortion::GetTextSize( const SwTextSizeInfo &rInf ) const
46 : {
47 0 : if( 1 >= GetLen() || rInf.GetLen() > GetLen() || !Width() || !GetLen() )
48 0 : return SwPosSize(*this);
49 : else
50 0 : return SwPosSize( (Width() / GetLen()) * rInf.GetLen(), Height() );
51 : }
52 :
53 0 : bool SwGluePortion::GetExpText( const SwTextSizeInfo &rInf, OUString &rText ) const
54 : {
55 0 : if( GetLen() && rInf.OnWin() &&
56 0 : rInf.GetOpt().IsBlank() && rInf.IsNoSymbol() )
57 : {
58 0 : OUStringBuffer aBuf;
59 0 : comphelper::string::padToLength(aBuf, GetLen(), CH_BULLET);
60 0 : rText = aBuf.makeStringAndClear();
61 0 : return true;
62 : }
63 0 : return false;
64 : }
65 :
66 2876 : void SwGluePortion::Paint( const SwTextPaintInfo &rInf ) const
67 : {
68 2876 : if( !GetLen() )
69 5752 : return;
70 :
71 0 : if( rInf.GetFont()->IsPaintBlank() )
72 : {
73 0 : OUStringBuffer aBuf;
74 0 : comphelper::string::padToLength(aBuf, GetFixWidth() / GetLen(), ' ');
75 0 : OUString aText(aBuf.makeStringAndClear());
76 0 : SwTextPaintInfo aInf( rInf, &aText );
77 0 : aInf.DrawText( *this, aText.getLength(), true );
78 : }
79 :
80 0 : if( rInf.OnWin() && rInf.GetOpt().IsBlank() && rInf.IsNoSymbol() )
81 : {
82 : #if OSL_DEBUG_LEVEL > 0
83 : const sal_Unicode cChar = rInf.GetChar( rInf.GetIdx() );
84 : OSL_ENSURE( CH_BLANK == cChar || CH_BULLET == cChar,
85 : "SwGluePortion::Paint: blank expected" );
86 : #endif
87 0 : if( 1 == GetLen() )
88 : {
89 0 : OUString aBullet( CH_BULLET );
90 0 : SwPosSize aBulletSize( rInf.GetTextSize( aBullet ) );
91 0 : Point aPos( rInf.GetPos() );
92 0 : aPos.X() += (Width()/2) - (aBulletSize.Width()/2);
93 0 : SwTextPaintInfo aInf( rInf, &aBullet );
94 0 : aInf.SetPos( aPos );
95 0 : SwTextPortion aBulletPor;
96 0 : aBulletPor.Width( aBulletSize.Width() );
97 0 : aBulletPor.Height( aBulletSize.Height() );
98 0 : aBulletPor.SetAscent( GetAscent() );
99 0 : aInf.DrawText( aBulletPor, aBullet.getLength(), true );
100 : }
101 : else
102 : {
103 0 : SwTextSlot aSlot( &rInf, this, true, false );
104 0 : rInf.DrawText( *this, rInf.GetLen(), true );
105 : }
106 : }
107 : }
108 :
109 1121 : void SwGluePortion::MoveGlue( SwGluePortion *pTarget, const short nPrtGlue )
110 : {
111 1121 : short nPrt = std::min( nPrtGlue, GetPrtGlue() );
112 1121 : if( 0 < nPrt )
113 : {
114 1105 : pTarget->AddPrtWidth( nPrt );
115 1105 : SubPrtWidth( nPrt );
116 : }
117 1121 : }
118 :
119 2 : void SwGluePortion::Join( SwGluePortion *pVictim )
120 : {
121 : // The GluePortion is extracted and flushed away ...
122 2 : AddPrtWidth( pVictim->PrtWidth() );
123 2 : SetLen( pVictim->GetLen() + GetLen() );
124 2 : if( Height() < pVictim->Height() )
125 2 : Height( pVictim->Height() );
126 :
127 2 : AdjFixWidth();
128 2 : Cut( pVictim );
129 2 : delete pVictim;
130 2 : }
131 :
132 : /**
133 : * We're expecting a frame-local SwRect!
134 : */
135 1123 : SwFixPortion::SwFixPortion( const SwRect &rRect )
136 1123 : :SwGluePortion( sal_uInt16(rRect.Width()) ), nFix( sal_uInt16(rRect.Left()) )
137 : {
138 1123 : Height( sal_uInt16(rRect.Height()) );
139 1123 : SetWhichPor( POR_FIX );
140 1123 : }
141 :
142 16905 : SwFixPortion::SwFixPortion(const sal_uInt16 nFixedWidth, const sal_uInt16 nFixedPos)
143 16905 : : SwGluePortion(nFixedWidth), nFix(nFixedPos)
144 : {
145 16905 : SetWhichPor( POR_FIX );
146 16905 : }
147 :
148 2555 : SwMarginPortion::SwMarginPortion( const sal_uInt16 nFixedWidth )
149 2555 : :SwGluePortion( nFixedWidth )
150 : {
151 2555 : SetWhichPor( POR_MARGIN );
152 2555 : }
153 :
154 : /**
155 : * In the outer loop all portions are inspected - the GluePortions
156 : * at the end are processed first.
157 : * The end is shifted forwardly till no more GluePortions remain.
158 : * Always GluePortion-pairs (pLeft and pRight) are treated, where
159 : * textportions between pLeft and pRight are moved at the back of
160 : * pRight if pRight has enough Glue. With every move part of the
161 : * Glue is transferred from pRight to pLeft.
162 : * The next loop starts with the processed pLeft as pRight.
163 : */
164 0 : void SwMarginPortion::AdjustRight( const SwLineLayout *pCurr )
165 : {
166 0 : SwGluePortion *pRight = 0;
167 0 : bool bNoMove = 0 != pCurr->GetpKanaComp();
168 0 : while( pRight != this )
169 : {
170 :
171 : // 1) We search for the left Glue
172 0 : SwLinePortion *pPos = this;
173 0 : SwGluePortion *pLeft = 0;
174 0 : while( pPos )
175 : {
176 0 : if( pPos->InFixMargGrp() )
177 0 : pLeft = static_cast<SwGluePortion*>(pPos);
178 0 : pPos = pPos->GetPortion();
179 0 : if( pPos == pRight)
180 0 : pPos = 0;
181 : }
182 :
183 : // Two adjoining FlyPortions are merged
184 0 : if( pRight && pLeft && pLeft->GetPortion() == pRight )
185 : {
186 0 : pRight->MoveAllGlue( pLeft );
187 0 : pRight = 0;
188 : }
189 0 : sal_uInt16 nRightGlue = pRight && 0 < pRight->GetPrtGlue()
190 0 : ? sal_uInt16(pRight->GetPrtGlue()) : 0;
191 : // 2) balance left and right Glue
192 : // But not for tabs ...
193 0 : if( pLeft && nRightGlue && !pRight->InTabGrp() )
194 : {
195 : // pPrev is the portion immediately before pRight
196 0 : SwLinePortion *pPrev = pRight->FindPrevPortion( pLeft );
197 :
198 0 : if ( pRight->IsFlyPortion() && pRight->GetLen() )
199 : {
200 0 : SwFlyPortion *pFly = static_cast<SwFlyPortion *>(pRight);
201 0 : if ( pFly->GetBlankWidth() < nRightGlue )
202 : {
203 : // Creating new TextPortion, that takes over the
204 : // Blank previously swallowed by the Fly.
205 0 : nRightGlue = nRightGlue - pFly->GetBlankWidth();
206 0 : pFly->SubPrtWidth( pFly->GetBlankWidth() );
207 0 : pFly->SetLen( 0 );
208 0 : SwTextPortion *pNewPor = new SwTextPortion;
209 0 : pNewPor->SetLen( 1 );
210 0 : pNewPor->Height( pFly->Height() );
211 0 : pNewPor->Width( pFly->GetBlankWidth() );
212 0 : pFly->Insert( pNewPor );
213 : }
214 : else
215 0 : pPrev = pLeft;
216 : }
217 0 : while( pPrev != pLeft )
218 : {
219 0 : if( bNoMove || pPrev->PrtWidth() >= nRightGlue ||
220 0 : pPrev->InHyphGrp() || pPrev->IsKernPortion() )
221 : {
222 : // The portion before the pRight cannot be moved
223 : // because no Glue is remaining.
224 : // We set the break condition:
225 0 : pPrev = pLeft;
226 : }
227 : else
228 : {
229 0 : nRightGlue = nRightGlue - pPrev->PrtWidth();
230 : // pPrev is moved behind pRight. For this the
231 : // Glue value between pRight and pLeft gets balanced.
232 0 : pRight->MoveGlue( pLeft, short( pPrev->PrtWidth() ) );
233 : // Now fix the linking of our portions.
234 0 : SwLinePortion *pPrevPrev = pPrev->FindPrevPortion( pLeft );
235 0 : pPrevPrev->SetPortion( pRight );
236 0 : pPrev->SetPortion( pRight->GetPortion() );
237 0 : pRight->SetPortion( pPrev );
238 0 : if ( pPrev->GetPortion() && pPrev->InTextGrp()
239 0 : && pPrev->GetPortion()->IsHolePortion() )
240 : {
241 : SwHolePortion *pHolePor =
242 0 : static_cast<SwHolePortion*>(pPrev->GetPortion());
243 0 : if ( !pHolePor->GetPortion() ||
244 0 : !pHolePor->GetPortion()->InFixMargGrp() )
245 : {
246 0 : pPrev->AddPrtWidth( pHolePor->GetBlankWidth() );
247 0 : pPrev->SetLen( pPrev->GetLen() + 1 );
248 0 : pPrev->SetPortion( pHolePor->GetPortion() );
249 0 : delete pHolePor;
250 : }
251 : }
252 0 : pPrev = pPrevPrev;
253 : }
254 : }
255 : }
256 : // If no left Glue remaines we set the break condition.
257 0 : pRight = pLeft ? pLeft : this;
258 : }
259 177 : }
260 :
261 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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