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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 35638 : SwGluePortion::SwGluePortion( const sal_uInt16 nInitFixWidth )
31 35638 : : nFixWidth( nInitFixWidth )
32 : {
33 35638 : PrtWidth( nFixWidth );
34 35638 : SetWhichPor( POR_GLUE );
35 35638 : }
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::GetTxtSize( const SwTxtSizeInfo &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::GetExpTxt( const SwTxtSizeInfo &rInf, OUString &rTxt ) 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 : rTxt = aBuf.makeStringAndClear();
61 0 : return true;
62 : }
63 0 : return false;
64 : }
65 :
66 4700 : void SwGluePortion::Paint( const SwTxtPaintInfo &rInf ) const
67 : {
68 4700 : if( !GetLen() )
69 9400 : return;
70 :
71 0 : if( rInf.GetFont()->IsPaintBlank() )
72 : {
73 0 : OUStringBuffer aBuf;
74 0 : comphelper::string::padToLength(aBuf, GetFixWidth() / GetLen(), ' ');
75 0 : OUString aTxt(aBuf.makeStringAndClear());
76 0 : SwTxtPaintInfo aInf( rInf, &aTxt );
77 0 : aInf.DrawText( *this, aTxt.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.GetTxtSize( aBullet ) );
91 0 : Point aPos( rInf.GetPos() );
92 0 : aPos.X() += (Width()/2) - (aBulletSize.Width()/2);
93 0 : SwTxtPaintInfo aInf( rInf, &aBullet );
94 0 : aInf.SetPos( aPos );
95 0 : SwTxtPortion 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 : SwTxtSlot aSlot( &rInf, this, true, false );
104 0 : rInf.DrawText( *this, rInf.GetLen(), true );
105 : }
106 : }
107 : }
108 :
109 1962 : void SwGluePortion::MoveGlue( SwGluePortion *pTarget, const short nPrtGlue )
110 : {
111 1962 : short nPrt = std::min( nPrtGlue, GetPrtGlue() );
112 1962 : if( 0 < nPrt )
113 : {
114 1930 : pTarget->AddPrtWidth( nPrt );
115 1930 : SubPrtWidth( nPrt );
116 : }
117 1962 : }
118 :
119 4 : void SwGluePortion::Join( SwGluePortion *pVictim )
120 : {
121 : // Die GluePortion wird ausgesogen und weggespuelt ...
122 4 : AddPrtWidth( pVictim->PrtWidth() );
123 4 : SetLen( pVictim->GetLen() + GetLen() );
124 4 : if( Height() < pVictim->Height() )
125 4 : Height( pVictim->Height() );
126 :
127 4 : AdjFixWidth();
128 4 : Cut( pVictim );
129 4 : delete pVictim;
130 4 : }
131 :
132 : // Wir erwarten ein framelokales SwRect !
133 2366 : SwFixPortion::SwFixPortion( const SwRect &rRect )
134 2366 : :SwGluePortion( sal_uInt16(rRect.Width()) ), nFix( sal_uInt16(rRect.Left()) )
135 : {
136 2366 : Height( sal_uInt16(rRect.Height()) );
137 2366 : SetWhichPor( POR_FIX );
138 2366 : }
139 :
140 28646 : SwFixPortion::SwFixPortion(const sal_uInt16 nFixedWidth, const sal_uInt16 nFixedPos)
141 28646 : : SwGluePortion(nFixedWidth), nFix(nFixedPos)
142 : {
143 28646 : SetWhichPor( POR_FIX );
144 28646 : }
145 :
146 4626 : SwMarginPortion::SwMarginPortion( const sal_uInt16 nFixedWidth )
147 4626 : :SwGluePortion( nFixedWidth )
148 : {
149 4626 : SetWhichPor( POR_MARGIN );
150 4626 : }
151 :
152 : // In the outer loop all portions are inspected - the GluePortions
153 : // at the end are processed first.
154 : // The end is shifted forwardly till no more GluePortions remain.
155 : // Always GluePortion-pairs (pLeft and pRight) are treated, where
156 : // textportions between pLeft and pRight are moved at the back of
157 : // pRight if pRight has enough Glue. With every move part of the
158 : // Glue is transferred from pRight to pLeft.
159 : // The next loop starts with the processed pLeft as pRight.
160 0 : void SwMarginPortion::AdjustRight( const SwLineLayout *pCurr )
161 : {
162 0 : SwGluePortion *pRight = 0;
163 0 : bool bNoMove = 0 != pCurr->GetpKanaComp();
164 0 : while( pRight != this )
165 : {
166 :
167 : // 1) We search for the left Glue
168 0 : SwLinePortion *pPos = (SwLinePortion*)this;
169 0 : SwGluePortion *pLeft = 0;
170 0 : while( pPos )
171 : {
172 0 : if( pPos->InFixMargGrp() )
173 0 : pLeft = (SwGluePortion*)pPos;
174 0 : pPos = pPos->GetPortion();
175 0 : if( pPos == pRight)
176 0 : pPos = 0;
177 : }
178 :
179 : // Two adjoining FlyPortions are merged
180 0 : if( pRight && pLeft && pLeft->GetPortion() == pRight )
181 : {
182 0 : pRight->MoveAllGlue( pLeft );
183 0 : pRight = 0;
184 : }
185 0 : sal_uInt16 nRightGlue = pRight && 0 < pRight->GetPrtGlue()
186 0 : ? sal_uInt16(pRight->GetPrtGlue()) : 0;
187 : // 2) balance left and right Glue
188 : // But not for tabs ...
189 0 : if( pLeft && nRightGlue && !pRight->InTabGrp() )
190 : {
191 : // pPrev is the portion immediately before pRight
192 0 : SwLinePortion *pPrev = pRight->FindPrevPortion( pLeft );
193 :
194 0 : if ( pRight->IsFlyPortion() && pRight->GetLen() )
195 : {
196 0 : SwFlyPortion *pFly = (SwFlyPortion *)pRight;
197 0 : if ( pFly->GetBlankWidth() < nRightGlue )
198 : {
199 : // Creating new TxtPortion, that takes over the
200 : // Blank previously swallowed by the Fly.
201 0 : nRightGlue = nRightGlue - pFly->GetBlankWidth();
202 0 : pFly->SubPrtWidth( pFly->GetBlankWidth() );
203 0 : pFly->SetLen( 0 );
204 0 : SwTxtPortion *pNewPor = new SwTxtPortion;
205 0 : pNewPor->SetLen( 1 );
206 0 : pNewPor->Height( pFly->Height() );
207 0 : pNewPor->Width( pFly->GetBlankWidth() );
208 0 : pFly->Insert( pNewPor );
209 : }
210 : else
211 0 : pPrev = pLeft;
212 : }
213 0 : while( pPrev != pLeft )
214 : {
215 0 : if( bNoMove || pPrev->PrtWidth() >= nRightGlue ||
216 0 : pPrev->InHyphGrp() || pPrev->IsKernPortion() )
217 : {
218 : // The portion before the pRight cannot be moved
219 : // because no Glue is remaining.
220 : // We set the break condition:
221 0 : pPrev = pLeft;
222 : }
223 : else
224 : {
225 0 : nRightGlue = nRightGlue - pPrev->PrtWidth();
226 : // pPrev is moved behind pRight. For this the
227 : // Glue value between pRight and pLeft gets balanced.
228 0 : pRight->MoveGlue( pLeft, short( pPrev->PrtWidth() ) );
229 : // Now fix the linking of our portions.
230 0 : SwLinePortion *pPrevPrev = pPrev->FindPrevPortion( pLeft );
231 0 : pPrevPrev->SetPortion( pRight );
232 0 : pPrev->SetPortion( pRight->GetPortion() );
233 0 : pRight->SetPortion( pPrev );
234 0 : if ( pPrev->GetPortion() && pPrev->InTxtGrp()
235 0 : && pPrev->GetPortion()->IsHolePortion() )
236 : {
237 : SwHolePortion *pHolePor =
238 0 : (SwHolePortion*)pPrev->GetPortion();
239 0 : if ( !pHolePor->GetPortion() ||
240 0 : !pHolePor->GetPortion()->InFixMargGrp() )
241 : {
242 0 : pPrev->AddPrtWidth( pHolePor->GetBlankWidth() );
243 0 : pPrev->SetLen( pPrev->GetLen() + 1 );
244 0 : pPrev->SetPortion( pHolePor->GetPortion() );
245 0 : delete pHolePor;
246 : }
247 : }
248 0 : pPrev = pPrevPrev;
249 : }
250 : }
251 : }
252 : // If no left Glue remaines we set the break condition.
253 0 : pRight = pLeft ? pLeft : (SwGluePortion*)this;
254 : }
255 270 : }
256 :
257 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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