Line data Source code
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 : /*************************************************************************
31 : * class SwGluePortion
32 : *************************************************************************/
33 :
34 0 : SwGluePortion::SwGluePortion( const KSHORT nInitFixWidth )
35 0 : : nFixWidth( nInitFixWidth )
36 : {
37 0 : PrtWidth( nFixWidth );
38 0 : SetWhichPor( POR_GLUE );
39 0 : }
40 :
41 : /*************************************************************************
42 : * virtual SwGluePortion::GetCrsrOfst()
43 : *************************************************************************/
44 :
45 0 : sal_Int32 SwGluePortion::GetCrsrOfst( const KSHORT nOfst ) const
46 : {
47 0 : if( !GetLen() || nOfst > GetLen() || !Width() )
48 0 : return SwLinePortion::GetCrsrOfst( nOfst );
49 : else
50 0 : return nOfst / (Width() / GetLen());
51 : }
52 :
53 : /*************************************************************************
54 : * virtual SwGluePortion::GetTxtSize()
55 : *************************************************************************/
56 :
57 0 : SwPosSize SwGluePortion::GetTxtSize( const SwTxtSizeInfo &rInf ) const
58 : {
59 0 : if( 1 >= GetLen() || rInf.GetLen() > GetLen() || !Width() || !GetLen() )
60 0 : return SwPosSize(*this);
61 : else
62 0 : return SwPosSize( (Width() / GetLen()) * rInf.GetLen(), Height() );
63 : }
64 :
65 : /*************************************************************************
66 : * virtual SwGluePortion::GetExpTxt()
67 : *************************************************************************/
68 :
69 0 : bool SwGluePortion::GetExpTxt( const SwTxtSizeInfo &rInf, OUString &rTxt ) const
70 : {
71 0 : if( GetLen() && rInf.OnWin() &&
72 0 : rInf.GetOpt().IsBlank() && rInf.IsNoSymbol() )
73 : {
74 0 : OUStringBuffer aBuf;
75 0 : comphelper::string::padToLength(aBuf, GetLen(), CH_BULLET);
76 0 : rTxt = aBuf.makeStringAndClear();
77 0 : return true;
78 : }
79 0 : return false;
80 : }
81 :
82 : /*************************************************************************
83 : * virtual SwGluePortion::Paint()
84 : *************************************************************************/
85 :
86 0 : void SwGluePortion::Paint( const SwTxtPaintInfo &rInf ) const
87 : {
88 0 : if( !GetLen() )
89 0 : return;
90 :
91 0 : if( rInf.GetFont()->IsPaintBlank() )
92 : {
93 0 : OUStringBuffer aBuf;
94 0 : comphelper::string::padToLength(aBuf, GetFixWidth() / GetLen(), ' ');
95 0 : OUString aTxt(aBuf.makeStringAndClear());
96 0 : SwTxtPaintInfo aInf( rInf, &aTxt );
97 0 : aInf.DrawText( *this, aTxt.getLength(), true );
98 : }
99 :
100 0 : if( rInf.OnWin() && rInf.GetOpt().IsBlank() && rInf.IsNoSymbol() )
101 : {
102 : #if OSL_DEBUG_LEVEL > 0
103 : const sal_Unicode cChar = rInf.GetChar( rInf.GetIdx() );
104 : OSL_ENSURE( CH_BLANK == cChar || CH_BULLET == cChar,
105 : "SwGluePortion::Paint: blank expected" );
106 : #endif
107 0 : if( 1 == GetLen() )
108 : {
109 0 : OUString aBullet( CH_BULLET );
110 0 : SwPosSize aBulletSize( rInf.GetTxtSize( aBullet ) );
111 0 : Point aPos( rInf.GetPos() );
112 0 : aPos.X() += (Width()/2) - (aBulletSize.Width()/2);
113 0 : SwTxtPaintInfo aInf( rInf, &aBullet );
114 0 : aInf.SetPos( aPos );
115 0 : SwTxtPortion aBulletPor;
116 0 : aBulletPor.Width( aBulletSize.Width() );
117 0 : aBulletPor.Height( aBulletSize.Height() );
118 0 : aBulletPor.SetAscent( GetAscent() );
119 0 : aInf.DrawText( aBulletPor, aBullet.getLength(), true );
120 : }
121 : else
122 : {
123 0 : SwTxtSlot aSlot( &rInf, this, true, false );
124 0 : rInf.DrawText( *this, rInf.GetLen(), true );
125 : }
126 : }
127 : }
128 :
129 : /*************************************************************************
130 : * SwGluePortion::MoveGlue()
131 : *************************************************************************/
132 :
133 0 : void SwGluePortion::MoveGlue( SwGluePortion *pTarget, const short nPrtGlue )
134 : {
135 0 : short nPrt = std::min( nPrtGlue, GetPrtGlue() );
136 0 : if( 0 < nPrt )
137 : {
138 0 : pTarget->AddPrtWidth( nPrt );
139 0 : SubPrtWidth( nPrt );
140 : }
141 0 : }
142 :
143 : /*************************************************************************
144 : * void SwGluePortion::Join()
145 : *************************************************************************/
146 :
147 0 : void SwGluePortion::Join( SwGluePortion *pVictim )
148 : {
149 : // Die GluePortion wird ausgesogen und weggespuelt ...
150 0 : AddPrtWidth( pVictim->PrtWidth() );
151 0 : SetLen( pVictim->GetLen() + GetLen() );
152 0 : if( Height() < pVictim->Height() )
153 0 : Height( pVictim->Height() );
154 :
155 0 : AdjFixWidth();
156 0 : Cut( pVictim );
157 0 : delete pVictim;
158 0 : }
159 :
160 : /*************************************************************************
161 : * class SwFixPortion
162 : *************************************************************************/
163 :
164 : // Wir erwarten ein framelokales SwRect !
165 0 : SwFixPortion::SwFixPortion( const SwRect &rRect )
166 0 : :SwGluePortion( KSHORT(rRect.Width()) ), nFix( KSHORT(rRect.Left()) )
167 : {
168 0 : Height( KSHORT(rRect.Height()) );
169 0 : SetWhichPor( POR_FIX );
170 0 : }
171 :
172 0 : SwFixPortion::SwFixPortion(const KSHORT nFixedWidth, const KSHORT nFixedPos)
173 0 : : SwGluePortion(nFixedWidth), nFix(nFixedPos)
174 : {
175 0 : SetWhichPor( POR_FIX );
176 0 : }
177 :
178 : /*************************************************************************
179 : * class SwMarginPortion
180 : *************************************************************************/
181 :
182 0 : SwMarginPortion::SwMarginPortion( const KSHORT nFixedWidth )
183 0 : :SwGluePortion( nFixedWidth )
184 : {
185 0 : SetWhichPor( POR_MARGIN );
186 0 : }
187 :
188 : /*************************************************************************
189 : * SwMarginPortion::AdjustRight()
190 : *
191 : * In the outer loop all portions are inspected - the GluePortions
192 : * at the end are processed first.
193 : * The end is shifted forwardly till no more GluePortions remain.
194 : * Always GluePortion-pairs (pLeft and pRight) are treated, where
195 : * textportions between pLeft and pRight are moved at the back of
196 : * pRight if pRight has enough Glue. With every move part of the
197 : * Glue is transferred from pRight to pLeft.
198 : * The next loop starts with the processed pLeft as pRight.
199 : *************************************************************************/
200 :
201 0 : void SwMarginPortion::AdjustRight( const SwLineLayout *pCurr )
202 : {
203 0 : SwGluePortion *pRight = 0;
204 0 : bool bNoMove = 0 != pCurr->GetpKanaComp();
205 0 : while( pRight != this )
206 : {
207 :
208 : // 1) We search for the left Glue
209 0 : SwLinePortion *pPos = (SwLinePortion*)this;
210 0 : SwGluePortion *pLeft = 0;
211 0 : while( pPos )
212 : {
213 0 : if( pPos->InFixMargGrp() )
214 0 : pLeft = (SwGluePortion*)pPos;
215 0 : pPos = pPos->GetPortion();
216 0 : if( pPos == pRight)
217 0 : pPos = 0;
218 : }
219 :
220 : // Two adjoining FlyPortions are merged
221 0 : if( pRight && pLeft && pLeft->GetPortion() == pRight )
222 : {
223 0 : pRight->MoveAllGlue( pLeft );
224 0 : pRight = 0;
225 : }
226 0 : KSHORT nRightGlue = pRight && 0 < pRight->GetPrtGlue()
227 0 : ? KSHORT(pRight->GetPrtGlue()) : 0;
228 : // 2) balance left and right Glue
229 : // But not for tabs ...
230 0 : if( pLeft && nRightGlue && !pRight->InTabGrp() )
231 : {
232 : // pPrev is the portion immediately before pRight
233 0 : SwLinePortion *pPrev = pRight->FindPrevPortion( pLeft );
234 :
235 0 : if ( pRight->IsFlyPortion() && pRight->GetLen() )
236 : {
237 0 : SwFlyPortion *pFly = (SwFlyPortion *)pRight;
238 0 : if ( pFly->GetBlankWidth() < nRightGlue )
239 : {
240 : // Creating new TxtPortion, that takes over the
241 : // Blank previously swallowed by the Fly.
242 0 : nRightGlue = nRightGlue - pFly->GetBlankWidth();
243 0 : pFly->SubPrtWidth( pFly->GetBlankWidth() );
244 0 : pFly->SetLen( 0 );
245 0 : SwTxtPortion *pNewPor = new SwTxtPortion;
246 0 : pNewPor->SetLen( 1 );
247 0 : pNewPor->Height( pFly->Height() );
248 0 : pNewPor->Width( pFly->GetBlankWidth() );
249 0 : pFly->Insert( pNewPor );
250 : }
251 : else
252 0 : pPrev = pLeft;
253 : }
254 0 : while( pPrev != pLeft )
255 : {
256 0 : if( bNoMove || pPrev->PrtWidth() >= nRightGlue ||
257 0 : pPrev->InHyphGrp() || pPrev->IsKernPortion() )
258 : {
259 : // The portion before the pRight cannot be moved
260 : // because no Glue is remaining.
261 : // We set the break condition:
262 0 : pPrev = pLeft;
263 : }
264 : else
265 : {
266 0 : nRightGlue = nRightGlue - pPrev->PrtWidth();
267 : // pPrev is moved behind pRight. For this the
268 : // Glue value between pRight and pLeft gets balanced.
269 0 : pRight->MoveGlue( pLeft, short( pPrev->PrtWidth() ) );
270 : // Now fix the linking of our portions.
271 0 : SwLinePortion *pPrevPrev = pPrev->FindPrevPortion( pLeft );
272 0 : pPrevPrev->SetPortion( pRight );
273 0 : pPrev->SetPortion( pRight->GetPortion() );
274 0 : pRight->SetPortion( pPrev );
275 0 : if ( pPrev->GetPortion() && pPrev->InTxtGrp()
276 0 : && pPrev->GetPortion()->IsHolePortion() )
277 : {
278 : SwHolePortion *pHolePor =
279 0 : (SwHolePortion*)pPrev->GetPortion();
280 0 : if ( !pHolePor->GetPortion() ||
281 0 : !pHolePor->GetPortion()->InFixMargGrp() )
282 : {
283 0 : pPrev->AddPrtWidth( pHolePor->GetBlankWidth() );
284 0 : pPrev->SetLen( pPrev->GetLen() + 1 );
285 0 : pPrev->SetPortion( pHolePor->GetPortion() );
286 0 : delete pHolePor;
287 : }
288 : }
289 0 : pPrev = pPrevPrev;
290 : }
291 : }
292 : }
293 : // If no left Glue remaines we set the break condition.
294 0 : pRight = pLeft ? pLeft : (SwGluePortion*)this;
295 : }
296 0 : }
297 :
298 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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