LibreOffice Module sdext (master)  1
drawtreevisiting.cxx
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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.
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8  *
9  * This file incorporates work covered by the following license notice:
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11  * Licensed to the Apache Software Foundation (ASF) under one or more
12  * contributor license agreements. See the NOTICE file distributed
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17  * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18  */
19 
20 
21 #include <pdfiprocessor.hxx>
22 #include <xmlemitter.hxx>
23 #include <pdfihelper.hxx>
24 #include <imagecontainer.hxx>
25 #include "style.hxx"
26 #include "drawtreevisiting.hxx"
27 #include <genericelements.hxx>
28 
30 #include <osl/diagnose.h>
31 #include <rtl/math.hxx>
32 #include <com/sun/star/i18n/BreakIterator.hpp>
33 #include <com/sun/star/i18n/CharacterClassification.hpp>
34 #include <com/sun/star/i18n/ScriptType.hpp>
35 #include <com/sun/star/i18n/DirectionProperty.hpp>
36 
37 #include <string.h>
38 #include <string_view>
39 
40 using namespace ::com::sun::star;
41 using namespace ::com::sun::star::lang;
42 using namespace ::com::sun::star::i18n;
43 using namespace ::com::sun::star::uno;
44 
45 namespace pdfi
46 {
47 
48 const Reference< XBreakIterator >& DrawXmlOptimizer::GetBreakIterator()
49 {
50  if ( !mxBreakIter.is() )
51  {
52  Reference< XComponentContext > xContext( m_rProcessor.m_xContext, uno::UNO_SET_THROW );
53  mxBreakIter = BreakIterator::create(xContext);
54  }
55  return mxBreakIter;
56 }
57 
58 const Reference< XCharacterClassification >& DrawXmlEmitter::GetCharacterClassification()
59 {
60  if ( !mxCharClass.is() )
61  {
62  Reference< XComponentContext > xContext( m_rEmitContext.m_xContext, uno::UNO_SET_THROW );
63  mxCharClass = CharacterClassification::create(xContext);
64  }
65  return mxCharClass;
66 }
67 
68 void DrawXmlEmitter::visit( HyperlinkElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
69 {
70  if( elem.Children.empty() )
71  return;
72 
73  const char* pType = dynamic_cast<DrawElement*>(elem.Children.front().get()) ? "draw:a" : "text:a";
74 
75  PropertyMap aProps;
76  aProps[ "xlink:type" ] = "simple";
77  aProps[ "xlink:href" ] = elem.URI;
78  aProps[ "office:target-frame-name" ] = "_blank";
79  aProps[ "xlink:show" ] = "new";
80 
81  m_rEmitContext.rEmitter.beginTag( pType, aProps );
82  auto this_it = elem.Children.begin();
83  while( this_it != elem.Children.end() && this_it->get() != &elem )
84  {
85  (*this_it)->visitedBy( *this, this_it );
86  ++this_it;
87  }
89 }
90 
91 void DrawXmlEmitter::visit( TextElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
92 {
93  if( elem.Text.isEmpty() )
94  return;
95 
96  OUString strSpace(u' ');
97  OUString strNbSpace(u'\x00A0');
98  OUString tabSpace(u'\x0009');
99  PropertyMap aProps;
100  if( elem.StyleId != -1 )
101  {
102  aProps[ OUString( "text:style-name" ) ] =
104  }
105 
106  OUString str(elem.Text.toString());
107 
108  // Check for RTL
109  bool isRTL = false;
111  if( xCC.is() )
112  {
113  for(int i=1; i< elem.Text.getLength(); i++)
114  {
115  css::i18n::DirectionProperty nType = static_cast<css::i18n::DirectionProperty>(xCC->getCharacterDirection( str, i ));
116  if ( nType == css::i18n::DirectionProperty_RIGHT_TO_LEFT ||
117  nType == css::i18n::DirectionProperty_RIGHT_TO_LEFT_ARABIC ||
118  nType == css::i18n::DirectionProperty_RIGHT_TO_LEFT_EMBEDDING ||
119  nType == css::i18n::DirectionProperty_RIGHT_TO_LEFT_OVERRIDE
120  )
121  isRTL = true;
122  }
123  }
124 
125  if (isRTL) // If so, reverse string
126  str = PDFIProcessor::mirrorString( str );
127 
128  m_rEmitContext.rEmitter.beginTag( "text:span", aProps );
129 
130  for(int i=0; i< elem.Text.getLength(); i++)
131  {
132  OUString strToken= str.copy(i,1) ;
133  if( strSpace == strToken || strNbSpace == strToken )
134  {
135  aProps[ "text:c" ] = "1";
136  m_rEmitContext.rEmitter.beginTag( "text:s", aProps );
137  m_rEmitContext.rEmitter.endTag( "text:s");
138  }
139  else
140  {
141  if( tabSpace == strToken )
142  {
143  m_rEmitContext.rEmitter.beginTag( "text:tab", aProps );
144  m_rEmitContext.rEmitter.endTag( "text:tab");
145  }
146  else
147  {
148  m_rEmitContext.rEmitter.write( strToken );
149  }
150  }
151  }
152 
153  auto this_it = elem.Children.begin();
154  while( this_it != elem.Children.end() && this_it->get() != &elem )
155  {
156  (*this_it)->visitedBy( *this, this_it );
157  ++this_it;
158  }
159 
160  m_rEmitContext.rEmitter.endTag( "text:span" );
161 }
162 
163 void DrawXmlEmitter::visit( ParagraphElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
164 {
165  PropertyMap aProps;
166  if( elem.StyleId != -1 )
167  {
168  aProps[ "text:style-name" ] = m_rEmitContext.rStyles.getStyleName( elem.StyleId );
169  }
170  const char* pTagType = "text:p";
171  if( elem.Type == ParagraphElement::Headline )
172  pTagType = "text:h";
173  m_rEmitContext.rEmitter.beginTag( pTagType, aProps );
174 
175  auto this_it = elem.Children.begin();
176  while( this_it != elem.Children.end() && this_it->get() != &elem )
177  {
178  (*this_it)->visitedBy( *this, this_it );
179  ++this_it;
180  }
181 
182  m_rEmitContext.rEmitter.endTag( pTagType );
183 }
184 
186  PropertyMap& rProps,
187  const EmitContext& rEmitContext,
188  bool bWasTransformed
189  )
190 {
191  rProps[ "draw:z-index" ] = OUString::number( rElem.ZOrder );
192  rProps[ "draw:style-name"] = rEmitContext.rStyles.getStyleName( rElem.StyleId );
193 
194  if (rElem.IsForText)
195  rProps["draw:text-style-name"] = rEmitContext.rStyles.getStyleName(rElem.TextStyleId);
196 
197  const GraphicsContext& rGC =
198  rEmitContext.rProcessor.getGraphicsContext( rElem.GCId );
199 
200  if (bWasTransformed)
201  {
202  rProps[ "svg:x" ] = convertPixelToUnitString(rElem.x);
203  rProps[ "svg:y" ] = convertPixelToUnitString(rElem.y);
204  rProps[ "svg:width" ] = convertPixelToUnitString(rElem.w);
205  rProps[ "svg:height" ] = convertPixelToUnitString(rElem.h);
206  }
207  else
208  {
209  OUStringBuffer aBuf(256);
210 
212 
213  if (rElem.MirrorVertical)
214  {
216  mat2.translate(0, -0.5);
217  mat2.scale(1, -1);
218  mat2.translate(0, 0.5);
219  mat = mat * mat2;
220  }
221 
222  double scale = convPx2mm(100);
223  mat.scale(scale, scale);
224 
225  aBuf.append("matrix(");
226  aBuf.append(mat.get(0, 0));
227  aBuf.append(' ');
228  aBuf.append(mat.get(1, 0));
229  aBuf.append(' ');
230  aBuf.append(mat.get(0, 1));
231  aBuf.append(' ');
232  aBuf.append(mat.get(1, 1));
233  aBuf.append(' ');
234  aBuf.append(mat.get(0, 2));
235  aBuf.append(' ');
236  aBuf.append(mat.get(1, 2));
237  aBuf.append(")");
238 
239  rProps["draw:transform"] = aBuf.makeStringAndClear();
240  }
241 }
242 
243 void DrawXmlEmitter::visit( FrameElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
244 {
245  if( elem.Children.empty() )
246  return;
247 
248  bool bTextBox = (dynamic_cast<ParagraphElement*>(elem.Children.front().get()) != nullptr);
249  PropertyMap aFrameProps;
250  fillFrameProps( elem, aFrameProps, m_rEmitContext, false );
251  m_rEmitContext.rEmitter.beginTag( "draw:frame", aFrameProps );
252  if( bTextBox )
253  m_rEmitContext.rEmitter.beginTag( "draw:text-box", PropertyMap() );
254 
255  auto this_it = elem.Children.begin();
256  while( this_it != elem.Children.end() && this_it->get() != &elem )
257  {
258  (*this_it)->visitedBy( *this, this_it );
259  ++this_it;
260  }
261 
262  if( bTextBox )
263  m_rEmitContext.rEmitter.endTag( "draw:text-box" );
264  m_rEmitContext.rEmitter.endTag( "draw:frame" );
265 }
266 
267 void DrawXmlEmitter::visit( PolyPolyElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
268 {
269  elem.updateGeometry();
270  /* note:
271  * aw recommends using 100dth of mm in all respects since the xml import
272  * (a) is buggy (see issue 37213)
273  * (b) is optimized for 100dth of mm and does not scale itself then,
274  * this does not gain us speed but makes for smaller rounding errors since
275  * the xml importer coordinates are integer based
276  */
277  for (sal_uInt32 i = 0; i< elem.PolyPoly.count(); i++)
278  {
279  basegfx::B2DPolygon b2dPolygon = elem.PolyPoly.getB2DPolygon( i );
280 
281  for ( sal_uInt32 j = 0; j< b2dPolygon.count(); j++ )
282  {
284  basegfx::B2DPoint nextPoint;
285  point = b2dPolygon.getB2DPoint( j );
286 
287  basegfx::B2DPoint prevPoint = b2dPolygon.getPrevControlPoint( j ) ;
288 
289  point.setX( convPx2mmPrec2( point.getX() )*100.0 );
290  point.setY( convPx2mmPrec2( point.getY() )*100.0 );
291 
292  if ( b2dPolygon.isPrevControlPointUsed( j ) )
293  {
294  prevPoint.setX( convPx2mmPrec2( prevPoint.getX() )*100.0 );
295  prevPoint.setY( convPx2mmPrec2( prevPoint.getY() )*100.0 );
296  }
297 
298  if ( b2dPolygon.isNextControlPointUsed( j ) )
299  {
300  nextPoint = b2dPolygon.getNextControlPoint( j ) ;
301  nextPoint.setX( convPx2mmPrec2( nextPoint.getX() )*100.0 );
302  nextPoint.setY( convPx2mmPrec2( nextPoint.getY() )*100.0 );
303  }
304 
305  b2dPolygon.setB2DPoint( j, point );
306 
307  if ( b2dPolygon.isPrevControlPointUsed( j ) )
308  b2dPolygon.setPrevControlPoint( j , prevPoint ) ;
309 
310  if ( b2dPolygon.isNextControlPointUsed( j ) )
311  b2dPolygon.setNextControlPoint( j , nextPoint ) ;
312  }
313 
314  elem.PolyPoly.setB2DPolygon( i, b2dPolygon );
315  }
316 
317  PropertyMap aProps;
318  // PDFIProcessor transforms geometrical objects, not images and text
319  // so we need to tell fillFrameProps here that the transformation for
320  // a PolyPolyElement was already applied (aside from translation)
321  fillFrameProps( elem, aProps, m_rEmitContext, true );
322  OUStringBuffer aBuf( 64 );
323  aBuf.append( "0 0 " );
324  aBuf.append( convPx2mmPrec2(elem.w)*100.0 );
325  aBuf.append( ' ' );
326  aBuf.append( convPx2mmPrec2(elem.h)*100.0 );
327  aProps[ "svg:viewBox" ] = aBuf.makeStringAndClear();
328  aProps[ "svg:d" ] = basegfx::utils::exportToSvgD( elem.PolyPoly, false, true, false );
329 
330  m_rEmitContext.rEmitter.beginTag( "draw:path", aProps );
331  m_rEmitContext.rEmitter.endTag( "draw:path" );
332 }
333 
334 void DrawXmlEmitter::visit( ImageElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
335 {
336  PropertyMap aImageProps;
337  m_rEmitContext.rEmitter.beginTag( "draw:image", aImageProps );
338  m_rEmitContext.rEmitter.beginTag( "office:binary-data", PropertyMap() );
340  m_rEmitContext.rEmitter.endTag( "office:binary-data" );
341  m_rEmitContext.rEmitter.endTag( "draw:image" );
342 }
343 
344 void DrawXmlEmitter::visit( PageElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
345 {
346  PropertyMap aPageProps;
347  aPageProps[ "draw:master-page-name" ] = m_rEmitContext.rStyles.getStyleName( elem.StyleId );
348 
349  m_rEmitContext.rEmitter.beginTag("draw:page", aPageProps);
350 
352  m_rEmitContext.xStatusIndicator->setValue( elem.PageNumber );
353 
354  auto this_it = elem.Children.begin();
355  while( this_it != elem.Children.end() && this_it->get() != &elem )
356  {
357  (*this_it)->visitedBy( *this, this_it );
358  ++this_it;
359  }
360 
361  m_rEmitContext.rEmitter.endTag("draw:page");
362 }
363 
364 void DrawXmlEmitter::visit( DocumentElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator&)
365 {
366  m_rEmitContext.rEmitter.beginTag( "office:body", PropertyMap() );
367  m_rEmitContext.rEmitter.beginTag( m_bWriteDrawDocument ? "office:drawing" : "office:presentation",
368  PropertyMap() );
369 
370  auto this_it = elem.Children.begin();
371  while( this_it != elem.Children.end() && this_it->get() != &elem )
372  {
373  (*this_it)->visitedBy( *this, this_it );
374  ++this_it;
375  }
376 
377  m_rEmitContext.rEmitter.endTag( m_bWriteDrawDocument ? "office:drawing" : "office:presentation" );
378  m_rEmitContext.rEmitter.endTag( "office:body" );
379 }
380 
381 
382 void DrawXmlOptimizer::visit( HyperlinkElement&, const std::list< std::unique_ptr<Element> >::const_iterator& )
383 {
384 }
385 
386 void DrawXmlOptimizer::visit( TextElement&, const std::list< std::unique_ptr<Element> >::const_iterator&)
387 {
388 }
389 
390 void DrawXmlOptimizer::visit( FrameElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
391 {
392  elem.applyToChildren(*this);
393 }
394 
395 void DrawXmlOptimizer::visit( ImageElement&, const std::list< std::unique_ptr<Element> >::const_iterator& )
396 {
397 }
398 
399 void DrawXmlOptimizer::visit( PolyPolyElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& elemIt )
400 {
401  /* note: optimize two consecutive PolyPolyElements that
402  * have the same path but one of which is a stroke while
403  * the other is a fill
404  */
405  if( !elem.Parent )
406  return;
407 
408  // find following PolyPolyElement in parent's children list
409  if( elemIt == elem.Parent->Children.end() )
410  return;
411  auto next_it = elemIt;
412  ++next_it;
413  if( next_it == elem.Parent->Children.end() )
414  return;
415 
416  PolyPolyElement* pNext = dynamic_cast<PolyPolyElement*>(next_it->get());
417  // TODO(F2): this comparison fails for OOo-generated polygons with beziers.
418  if( !pNext || pNext->PolyPoly != elem.PolyPoly )
419  return;
420 
421  const GraphicsContext& rNextGC =
423  const GraphicsContext& rThisGC =
425 
426  if( !(rThisGC.BlendMode == rNextGC.BlendMode &&
427  rThisGC.Flatness == rNextGC.Flatness &&
428  rThisGC.Transformation == rNextGC.Transformation &&
429  rThisGC.Clip == rNextGC.Clip &&
430  rThisGC.FillColor.Red == rNextGC.FillColor.Red &&
431  rThisGC.FillColor.Green== rNextGC.FillColor.Green &&
432  rThisGC.FillColor.Blue == rNextGC.FillColor.Blue &&
433  rThisGC.FillColor.Alpha== rNextGC.FillColor.Alpha &&
434  pNext->Action == PATH_STROKE &&
435  (elem.Action == PATH_FILL || elem.Action == PATH_EOFILL)) )
436  return;
437 
438  GraphicsContext aGC = rThisGC;
439  aGC.LineJoin = rNextGC.LineJoin;
440  aGC.LineCap = rNextGC.LineCap;
441  aGC.LineWidth = rNextGC.LineWidth;
442  aGC.MiterLimit= rNextGC.MiterLimit;
443  aGC.DashArray = rNextGC.DashArray;
444  aGC.LineColor = rNextGC.LineColor;
445  elem.GCId = m_rProcessor.getGCId( aGC );
446 
447  elem.Action |= pNext->Action;
448 
449  elem.Children.splice( elem.Children.end(), pNext->Children );
450  elem.Parent->Children.erase(next_it);
451 }
452 
453 void DrawXmlOptimizer::visit( ParagraphElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
454 {
455  optimizeTextElements( elem );
456 
457  elem.applyToChildren(*this);
458 }
459 
460 void DrawXmlOptimizer::visit( PageElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
461 {
462  if( m_rProcessor.getStatusIndicator().is() )
463  m_rProcessor.getStatusIndicator()->setValue( elem.PageNumber );
464 
465  // resolve hyperlinks
466  elem.resolveHyperlinks();
467 
468  elem.resolveFontStyles( m_rProcessor ); // underlines and such
469 
470  // FIXME: until hyperlinks and font effects are adjusted for
471  // geometrical search handle them before sorting
473 
474  // find paragraphs in text
475  ParagraphElement* pCurPara = nullptr;
476  std::list< std::unique_ptr<Element> >::iterator page_element, next_page_element;
477  next_page_element = elem.Children.begin();
478  double fCurLineHeight = 0.0; // average height of text items in current para
479  int nCurLineElements = 0; // number of line contributing elements in current para
480  double line_left = elem.w, line_right = 0.0;
481  double column_width = elem.w*0.75; // estimate text width
482  // TODO: guess columns
483  while( next_page_element != elem.Children.end() )
484  {
485  page_element = next_page_element++;
486  ParagraphElement* pPagePara = dynamic_cast<ParagraphElement*>(page_element->get());
487  if( pPagePara )
488  {
489  pCurPara = pPagePara;
490  // adjust line height and text items
491  fCurLineHeight = 0.0;
492  nCurLineElements = 0;
493  for( const auto& rxChild : pCurPara->Children )
494  {
495  TextElement* pTestText = dynamic_cast<TextElement*>(rxChild.get());
496  if( pTestText )
497  {
498  fCurLineHeight = (fCurLineHeight*double(nCurLineElements) + pTestText->h)/double(nCurLineElements+1);
499  nCurLineElements++;
500  }
501  }
502  continue;
503  }
504 
505  HyperlinkElement* pLink = dynamic_cast<HyperlinkElement*>(page_element->get());
506  DrawElement* pDraw = dynamic_cast<DrawElement*>(page_element->get());
507  if( ! pDraw && pLink && ! pLink->Children.empty() )
508  pDraw = dynamic_cast<DrawElement*>(pLink->Children.front().get() );
509  if( pDraw )
510  {
511  // insert small drawing objects as character, else leave them page bound
512 
513  bool bInsertToParagraph = false;
514  // first check if this is either inside the paragraph
515  if( pCurPara && pDraw->y < pCurPara->y + pCurPara->h )
516  {
517  if( pDraw->h < fCurLineHeight * 1.5 )
518  {
519  bInsertToParagraph = true;
520  fCurLineHeight = (fCurLineHeight*double(nCurLineElements) + pDraw->h)/double(nCurLineElements+1);
521  nCurLineElements++;
522  // mark draw element as character
523  pDraw->isCharacter = true;
524  }
525  }
526  // or perhaps the draw element begins a new paragraph
527  else if( next_page_element != elem.Children.end() )
528  {
529  TextElement* pText = dynamic_cast<TextElement*>(next_page_element->get());
530  if( ! pText )
531  {
532  ParagraphElement* pPara = dynamic_cast<ParagraphElement*>(next_page_element->get());
533  if( pPara && ! pPara->Children.empty() )
534  pText = dynamic_cast<TextElement*>(pPara->Children.front().get());
535  }
536  if( pText && // check there is a text
537  pDraw->h < pText->h*1.5 && // and it is approx the same height
538  // and either upper or lower edge of pDraw is inside text's vertical range
539  ( ( pDraw->y >= pText->y && pDraw->y <= pText->y+pText->h ) ||
540  ( pDraw->y+pDraw->h >= pText->y && pDraw->y+pDraw->h <= pText->y+pText->h )
541  )
542  )
543  {
544  bInsertToParagraph = true;
545  fCurLineHeight = pDraw->h;
546  nCurLineElements = 1;
547  line_left = pDraw->x;
548  line_right = pDraw->x + pDraw->w;
549  // begin a new paragraph
550  pCurPara = nullptr;
551  // mark draw element as character
552  pDraw->isCharacter = true;
553  }
554  }
555 
556  if( ! bInsertToParagraph )
557  {
558  pCurPara = nullptr;
559  continue;
560  }
561  }
562 
563  TextElement* pText = dynamic_cast<TextElement*>(page_element->get());
564  if( ! pText && pLink && ! pLink->Children.empty() )
565  pText = dynamic_cast<TextElement*>(pLink->Children.front().get());
566  if( pText )
567  {
568  Element* pGeo = pLink ? static_cast<Element*>(pLink) :
569  static_cast<Element*>(pText);
570  if( pCurPara )
571  {
572  // there was already a text element, check for a new paragraph
573  if( nCurLineElements > 0 )
574  {
575  // if the new text is significantly distant from the paragraph
576  // begin a new paragraph
577  if( pGeo->y > pCurPara->y + pCurPara->h + fCurLineHeight*0.5 )
578  pCurPara = nullptr; // insert new paragraph
579  else if( pGeo->y > (pCurPara->y+pCurPara->h - fCurLineHeight*0.05) )
580  {
581  // new paragraph if either the last line of the paragraph
582  // was significantly shorter than the paragraph as a whole
583  if( (line_right - line_left) < pCurPara->w*0.75 )
584  pCurPara = nullptr;
585  // or the last line was significantly smaller than the column width
586  else if( (line_right - line_left) < column_width*0.75 )
587  pCurPara = nullptr;
588  }
589  }
590 
591 
592  }
593 
594 
595  // update line height/width
596  if( pCurPara )
597  {
598  fCurLineHeight = (fCurLineHeight*double(nCurLineElements) + pGeo->h)/double(nCurLineElements+1);
599  nCurLineElements++;
600  if( pGeo->x < line_left )
601  line_left = pGeo->x;
602  if( pGeo->x+pGeo->w > line_right )
603  line_right = pGeo->x+pGeo->w;
604  }
605  else
606  {
607  fCurLineHeight = pGeo->h;
608  nCurLineElements = 1;
609  line_left = pGeo->x;
610  line_right = pGeo->x + pGeo->w;
611  }
612  }
613 
614 
615  // move element to current paragraph
616  if (! pCurPara ) // new paragraph, insert one
617  {
618  pCurPara = ElementFactory::createParagraphElement( nullptr );
619  // set parent
620  pCurPara->Parent = &elem;
621  //insert new paragraph before current element
622  page_element = elem.Children.insert( page_element, std::unique_ptr<Element>(pCurPara) );
623  // forward iterator to current element again
624  ++ page_element;
625  // update next_element which is now invalid
626  next_page_element = page_element;
627  ++ next_page_element;
628  }
629  Element* pCurEle = page_element->get();
630  Element::setParent( page_element, pCurPara );
631  OSL_ENSURE( !pText || pCurEle == pText || pCurEle == pLink, "paragraph child list in disorder" );
632  if( pText || pDraw )
633  pCurPara->updateGeometryWith( pCurEle );
634  }
635 
636  // process children
637  elem.applyToChildren(*this);
638 }
639 
640 static bool isSpaces(TextElement* pTextElem)
641 {
642  for (sal_Int32 i = 0; i != pTextElem->Text.getLength(); ++i) {
643  if (pTextElem->Text[i] != ' ') {
644  return false;
645  }
646  }
647  return true;
648 }
649 
650 static bool notTransformed(const GraphicsContext& GC)
651 {
652  return
653  rtl::math::approxEqual(GC.Transformation.get(0,0), 100.00) &&
654  GC.Transformation.get(1,0) == 0.00 &&
655  GC.Transformation.get(0,1) == 0.00 &&
656  rtl::math::approxEqual(GC.Transformation.get(1,1), -100.00);
657 }
658 
660 {
661  if( rParent.Children.empty() ) // this should not happen
662  {
663  OSL_FAIL( "empty paragraph optimized" );
664  return;
665  }
666 
667  // concatenate child elements with same font id
668  auto next = rParent.Children.begin();
669  auto it = next++;
670 
671  while( next != rParent.Children.end() )
672  {
673  bool bConcat = false;
674  TextElement* pCur = dynamic_cast<TextElement*>(it->get());
675 
676  if( pCur )
677  {
678  TextElement* pNext = dynamic_cast<TextElement*>(next->get());
679  bool isComplex = false;
680  OUString str(pCur->Text.toString());
681  for(int i=0; i< str.getLength(); i++)
682  {
683  sal_Int16 nType = GetBreakIterator()->getScriptType( str, i );
684  if (nType == css::i18n::ScriptType::COMPLEX)
685  isComplex = true;
686  }
687  bool bPara = strspn("ParagraphElement", typeid(rParent).name());
688  ParagraphElement* pPara = dynamic_cast<ParagraphElement*>(&rParent);
689  if (bPara && pPara && isComplex)
690  pPara->bRtl = true;
691  if( pNext )
692  {
693  const GraphicsContext& rCurGC = m_rProcessor.getGraphicsContext( pCur->GCId );
694  const GraphicsContext& rNextGC = m_rProcessor.getGraphicsContext( pNext->GCId );
695 
696  // line and space optimization; works only in strictly horizontal mode
697 
698  // concatenate consecutive text elements unless there is a
699  // font or text color or matrix change, leave a new span in that case
700  if( (pCur->FontId == pNext->FontId || isSpaces(pNext)) &&
701  rCurGC.FillColor.Red == rNextGC.FillColor.Red &&
702  rCurGC.FillColor.Green == rNextGC.FillColor.Green &&
703  rCurGC.FillColor.Blue == rNextGC.FillColor.Blue &&
704  rCurGC.FillColor.Alpha == rNextGC.FillColor.Alpha &&
705  (rCurGC.Transformation == rNextGC.Transformation || notTransformed(rNextGC))
706  )
707  {
708  pCur->updateGeometryWith( pNext );
709  // append text to current element
710  pCur->Text.append( pNext->Text );
711 
712  str = pCur->Text.toString();
713  for(int i=0; i< str.getLength(); i++)
714  {
715  sal_Int16 nType = GetBreakIterator()->getScriptType( str, i );
716  if (nType == css::i18n::ScriptType::COMPLEX)
717  isComplex = true;
718  }
719  if (bPara && pPara && isComplex)
720  pPara->bRtl = true;
721  // append eventual children to current element
722  // and clear children (else the children just
723  // appended to pCur would be destroyed)
724  pCur->Children.splice( pCur->Children.end(), pNext->Children );
725  // get rid of the now useless element
726  rParent.Children.erase( next );
727  bConcat = true;
728  }
729  }
730  }
731  else if( dynamic_cast<HyperlinkElement*>(it->get()) )
732  optimizeTextElements( **it );
733  if ( bConcat )
734  next = it;
735  else
736  ++it;
737  ++next;
738  }
739 }
740 
741 void DrawXmlOptimizer::visit( DocumentElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator&)
742 {
743  elem.applyToChildren(*this);
744 }
745 
746 
747 void DrawXmlFinalizer::visit( PolyPolyElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
748 {
749  // xxx TODO copied from DrawElement
751 
752  PropertyMap aProps;
753  aProps[ "style:family" ] = "graphic";
754  aProps[ "style:parent-style-name" ] = "standard";
755  // generate standard graphic style if necessary
757 
758  PropertyMap aGCProps;
759  if (elem.Action & PATH_STROKE)
760  {
762  if (rGC.DashArray.size() < 2)
763  {
764  aGCProps[ "draw:stroke" ] = "solid";
765  }
766  else
767  {
769  FillDashStyleProps(props, rGC.DashArray, scale);
770  StyleContainer::Style style("draw:stroke-dash", props);
771 
772  aGCProps[ "draw:stroke" ] = "dash";
773  aGCProps[ "draw:stroke-dash" ] =
776  }
777 
778  aGCProps[ "svg:stroke-color" ] = getColorString(rGC.LineColor);
779  if (rGC.LineColor.Alpha != 1.0)
780  aGCProps["svg:stroke-opacity"] = getPercentString(rGC.LineColor.Alpha * 100.0);
781  aGCProps[ "svg:stroke-width" ] = convertPixelToUnitString(rGC.LineWidth * scale);
782  aGCProps[ "draw:stroke-linejoin" ] = rGC.GetLineJoinString();
783  aGCProps[ "svg:stroke-linecap" ] = rGC.GetLineCapString();
784  }
785  else
786  {
787  aGCProps[ "draw:stroke" ] = "none";
788  }
789 
790  // TODO(F1): check whether stuff could be emulated by gradient/bitmap/hatch
791  if( elem.Action & (PATH_FILL | PATH_EOFILL) )
792  {
793  aGCProps[ "draw:fill" ] = "solid";
794  aGCProps[ "draw:fill-color" ] = getColorString(rGC.FillColor);
795  if (rGC.FillColor.Alpha != 1.0)
796  aGCProps["draw:opacity"] = getPercentString(rGC.FillColor.Alpha * 100.0);
797  }
798  else
799  {
800  aGCProps[ "draw:fill" ] = "none";
801  }
802 
803  StyleContainer::Style aStyle( "style:style", aProps );
804  StyleContainer::Style aSubStyle( "style:graphic-properties", aGCProps );
805  aStyle.SubStyles.push_back( &aSubStyle );
806 
807  elem.StyleId = m_rStyleContainer.getStyleId( aStyle );
808 }
809 
810 void DrawXmlFinalizer::visit( HyperlinkElement&, const std::list< std::unique_ptr<Element> >::const_iterator& )
811 {
812 }
813 
814 static void SetFontsizeProperties(PropertyMap& props, double fontSize)
815 {
816  OUString aFSize = OUString::number(fontSize * 72 / PDFI_OUTDEV_RESOLUTION) + "pt";
817  props["fo:font-size"] = aFSize;
818  props["style:font-size-asian"] = aFSize;
819  props["style:font-size-complex"] = aFSize;
820 }
821 
822 void DrawXmlFinalizer::visit( TextElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
823 {
824  const FontAttributes& rFont = m_rProcessor.getFont( elem.FontId );
825  PropertyMap aProps;
826  aProps[ "style:family" ] = "text";
827 
828  PropertyMap aFontProps;
829 
830  // family name
831  aFontProps[ "fo:font-family" ] = rFont.familyName;
832  aFontProps[ "style:font-family-complex" ] = rFont.familyName;
833 
834  // bold
835  if( rFont.isBold )
836  {
837  aFontProps[ "fo:font-weight" ] = "bold";
838  aFontProps[ "fo:font-weight-asian" ] = "bold";
839  aFontProps[ "style:font-weight-complex" ] = "bold";
840  }
841  // italic
842  if( rFont.isItalic )
843  {
844  aFontProps[ "fo:font-style" ] = "italic";
845  aFontProps[ "fo:font-style-asian" ] = "italic";
846  aFontProps[ "style:font-style-complex" ] = "italic";
847  }
848  // underline
849  if( rFont.isUnderline )
850  {
851  aFontProps[ "style:text-underline-style" ] = "solid";
852  aFontProps[ "style:text-underline-width" ] = "auto";
853  aFontProps[ "style:text-underline-color" ] = "font-color";
854  }
855  // outline
856  if( rFont.isOutline )
857  {
858  aFontProps[ "style:text-outline" ] = "true";
859  }
860 
861  // size
862  SetFontsizeProperties(aFontProps, rFont.size);
863 
864  // color
866  aFontProps[ "fo:color" ] = getColorString( rFont.isOutline ? rGC.LineColor : rGC.FillColor );
867 
868  // scale
869  double fRotate, fShearX;
870  basegfx::B2DTuple aScale, aTranslation;
871  rGC.Transformation.decompose(aScale, aTranslation, fRotate, fShearX);
872  double textScale = 100 * aScale.getX() / aScale.getY();
873  if (((textScale >= 1) && (textScale <= 99)) ||
874  ((textScale >= 101) && (textScale <= 999)))
875  {
876  aFontProps[ "style:text-scale" ] = getPercentString(textScale);
877  }
878 
879  StyleContainer::Style aStyle( "style:style", aProps );
880  StyleContainer::Style aSubStyle( "style:text-properties", aFontProps );
881  aStyle.SubStyles.push_back( &aSubStyle );
882  elem.StyleId = m_rStyleContainer.getStyleId( aStyle );
883 }
884 
885 void DrawXmlFinalizer::visit( ParagraphElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
886 {
887 
888  PropertyMap aProps;
889  aProps[ "style:family" ] = "paragraph";
890  // generate standard paragraph style if necessary
891  m_rStyleContainer.getStandardStyleId( "paragraph" );
892 
893  PropertyMap aParProps;
894 
895  aParProps[ "fo:text-align"] = "start";
896  if (elem.bRtl)
897  aParProps[ "style:writing-mode"] = "rl-tb";
898  else
899  aParProps[ "style:writing-mode"] = "lr-tb";
900 
901  StyleContainer::Style aStyle( "style:style", aProps );
902  StyleContainer::Style aSubStyle( "style:paragraph-properties", aParProps );
903  aStyle.SubStyles.push_back( &aSubStyle );
904 
905  elem.StyleId = m_rStyleContainer.getStyleId( aStyle );
906 
907  elem.applyToChildren(*this);
908 }
909 
910 void DrawXmlFinalizer::visit( FrameElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator&)
911 {
912  PropertyMap props1;
913  props1[ "style:family" ] = "graphic";
914  props1[ "style:parent-style-name" ] = "standard";
915  // generate standard graphic style if necessary
917 
918  PropertyMap aGCProps;
919 
920  aGCProps[ "draw:stroke" ] = "none";
921  aGCProps[ "draw:fill" ] = "none";
922  aGCProps[ "draw:auto-grow-height" ] = "true";
923  aGCProps[ "draw:auto-grow-width" ] = "true";
924  aGCProps[ "draw:textarea-horizontal-align" ] = "left";
925  aGCProps[ "draw:textarea-vertical-align" ] = "top";
926  aGCProps[ "fo:min-height"] = "0cm";
927  aGCProps[ "fo:min-width"] = "0cm";
928  aGCProps[ "fo:padding-top" ] = "0cm";
929  aGCProps[ "fo:padding-left" ] = "0cm";
930  aGCProps[ "fo:padding-right" ] = "0cm";
931  aGCProps[ "fo:padding-bottom" ] = "0cm";
932 
933  StyleContainer::Style style1( "style:style", props1 );
934  StyleContainer::Style subStyle1( "style:graphic-properties", aGCProps );
935  style1.SubStyles.push_back(&subStyle1);
936 
937  elem.StyleId = m_rStyleContainer.getStyleId(style1);
938 
939  if (elem.IsForText)
940  {
941  PropertyMap props2;
942  props2["style:family"] = "paragraph";
943 
944  PropertyMap textProps;
945  SetFontsizeProperties(textProps, elem.FontSize);
946 
947  StyleContainer::Style style2("style:style", props2);
948  StyleContainer::Style subStyle2("style:text-properties", textProps);
949  style2.SubStyles.push_back(&subStyle2);
951  }
952 
953  elem.applyToChildren(*this);
954 }
955 
956 void DrawXmlFinalizer::visit( ImageElement&, const std::list< std::unique_ptr<Element> >::const_iterator& )
957 {
958 }
959 
960 void DrawXmlFinalizer::visit( PageElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
961 {
962  if( m_rProcessor.getStatusIndicator().is() )
963  m_rProcessor.getStatusIndicator()->setValue( elem.PageNumber );
964 
965  // transform from pixel to mm
966  double page_width = convPx2mm( elem.w ), page_height = convPx2mm( elem.h );
967 
968  // calculate page margins out of the relevant children (paragraphs)
969  elem.TopMargin = elem.h;
970  elem.BottomMargin = 0;
971  elem.LeftMargin = elem.w;
972  elem.RightMargin = 0;
973 
974  for( const auto& rxChild : elem.Children )
975  {
976  if( rxChild->x < elem.LeftMargin )
977  elem.LeftMargin = rxChild->x;
978  if( rxChild->y < elem.TopMargin )
979  elem.TopMargin = rxChild->y;
980  if( rxChild->x + rxChild->w > elem.RightMargin )
981  elem.RightMargin = (rxChild->x + rxChild->w);
982  if( rxChild->y + rxChild->h > elem.BottomMargin )
983  elem.BottomMargin = (rxChild->y + rxChild->h);
984  }
985 
986  // transform margins to mm
987  double left_margin = convPx2mm( elem.LeftMargin );
988  double right_margin = convPx2mm( elem.RightMargin );
989  double top_margin = convPx2mm( elem.TopMargin );
990  double bottom_margin = convPx2mm( elem.BottomMargin );
991 
992  // round left/top margin to nearest mm
993  left_margin = rtl_math_round( left_margin, 0, rtl_math_RoundingMode_Floor );
994  top_margin = rtl_math_round( top_margin, 0, rtl_math_RoundingMode_Floor );
995  // round (fuzzy) right/bottom margin to nearest cm
996  right_margin = rtl_math_round( right_margin, right_margin >= 10 ? -1 : 0, rtl_math_RoundingMode_Floor );
997  bottom_margin = rtl_math_round( bottom_margin, bottom_margin >= 10 ? -1 : 0, rtl_math_RoundingMode_Floor );
998 
999  // set reasonable default in case of way too large margins
1000  // e.g. no paragraph case
1001  if( left_margin > page_width/2.0 - 10 )
1002  left_margin = 10;
1003  if( right_margin > page_width/2.0 - 10 )
1004  right_margin = 10;
1005  if( top_margin > page_height/2.0 - 10 )
1006  top_margin = 10;
1007  if( bottom_margin > page_height/2.0 - 10 )
1008  bottom_margin = 10;
1009 
1010  // catch the weird cases
1011  if( left_margin < 0 )
1012  left_margin = 0;
1013  if( right_margin < 0 )
1014  right_margin = 0;
1015  if( top_margin < 0 )
1016  top_margin = 0;
1017  if( bottom_margin < 0 )
1018  bottom_margin = 0;
1019 
1020  // widely differing margins are unlikely to be correct
1021  if( right_margin > left_margin*1.5 )
1022  right_margin = left_margin;
1023 
1024  elem.LeftMargin = convmm2Px( left_margin );
1025  elem.RightMargin = convmm2Px( right_margin );
1026  elem.TopMargin = convmm2Px( top_margin );
1027  elem.BottomMargin = convmm2Px( bottom_margin );
1028 
1029  // get styles for paragraphs
1030  PropertyMap aPageProps;
1031  PropertyMap aPageLayoutProps;
1032  aPageLayoutProps[ "fo:margin-top" ] = unitMMString( top_margin );
1033  aPageLayoutProps[ "fo:margin-bottom" ] = unitMMString( bottom_margin );
1034  aPageLayoutProps[ "fo:margin-left" ] = unitMMString( left_margin );
1035  aPageLayoutProps[ "fo:margin-right" ] = unitMMString( right_margin );
1036  aPageLayoutProps[ "fo:page-width" ] = unitMMString( page_width );
1037  aPageLayoutProps[ "fo:page-height" ] = unitMMString( page_height );
1038  aPageLayoutProps[ "style:print-orientation" ]= elem.w < elem.h ? std::u16string_view(u"portrait") : std::u16string_view(u"landscape");
1039  aPageLayoutProps[ "style:writing-mode" ]= "lr-tb";
1040 
1041  StyleContainer::Style aStyle( "style:page-layout", aPageProps);
1042  StyleContainer::Style aSubStyle( "style:page-layout-properties", aPageLayoutProps);
1043  aStyle.SubStyles.push_back(&aSubStyle);
1044  sal_Int32 nPageStyle = m_rStyleContainer.impl_getStyleId( aStyle, false );
1045 
1046  // create master page
1047  OUString aMasterPageLayoutName = m_rStyleContainer.getStyleName( nPageStyle );
1048  aPageProps[ "style:page-layout-name" ] = aMasterPageLayoutName;
1049 
1050  StyleContainer::Style aMPStyle( "style:master-page", aPageProps);
1051 
1052  elem.StyleId = m_rStyleContainer.impl_getStyleId( aMPStyle,false );
1053 
1054  // create styles for children
1055  elem.applyToChildren(*this);
1056 }
1057 
1058 void DrawXmlFinalizer::visit( DocumentElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
1059 {
1060  elem.applyToChildren(*this);
1061 }
1062 
1063 }
1064 
1065 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
css::rendering::ARGBColor LineColor
Definition: pdfihelper.hxx:96
std::unordered_map< OUString, OUString > PropertyMap
Definition: pdfihelper.hxx:44
void setX(double fX)
css::uno::Reference< css::uno::XComponentContext > m_xContext
PDFIProcessor & m_rProcessor
EmitContext & m_rEmitContext
basegfx::B2DPolyPolygon PolyPoly
basegfx::B2DPoint getNextControlPoint(sal_uInt32 nIndex) const
OUString unitMMString(double fMM)
Definition: pdfihelper.cxx:108
static OUString mirrorString(const OUString &i_rInString)
OUString getPercentString(double value)
Definition: pdfihelper.cxx:103
#define PDFI_OUTDEV_RESOLUTION
Definition: pdfihelper.hxx:38
double convmm2Px(double fMM)
Definition: pdfihelper.hxx:60
static void fillFrameProps(DrawElement &rElem, PropertyMap &rProps, const EmitContext &rEmitContext, bool bWasTransformed)
std::vector< Style * > SubStyles
Definition: style.hxx:45
void applyToChildren(ElementTreeVisitor &)
Apply visitor to all children.
static ParagraphElement * createParagraphElement(Element *pParent)
double getX() const
virtual void beginTag(const char *pTag, const PropertyMap &rProperties)=0
Open up a tag with the given properties.
OUString convertPixelToUnitString(double fPix)
Definition: pdfihelper.cxx:117
void setB2DPolygon(sal_uInt32 nIndex, const B2DPolygon &rPolygon)
aBuf
sal_Int32 impl_getStyleId(const Style &rStyle, bool bSubStyle)
Definition: style.cxx:37
double getY() const
def point()
const FontAttributes & getFont(sal_Int32 nFontId) const
PDFIProcessor & m_rProcessor
StyleContainer & m_rStyleContainer
virtual void visit(HyperlinkElement &, const std::list< std::unique_ptr< Element > >::const_iterator &) override
double get(sal_uInt16 nRow, sal_uInt16 nColumn) const
static bool notTransformed(const GraphicsContext &GC)
B2DPolygon const & getB2DPolygon(sal_uInt32 nIndex) const
basegfx::B2DPolyPolygon Clip
Definition: pdfihelper.hxx:108
static bool isSpaces(TextElement *pTextElem)
PDFIProcessor & rProcessor
bool isPrevControlPointUsed(sal_uInt32 nIndex) const
void setB2DPoint(sal_uInt32 nIndex, const basegfx::B2DPoint &rValue)
css::rendering::ARGBColor FillColor
Definition: pdfihelper.hxx:97
const GraphicsContext & getGraphicsContext(sal_Int32 nGCId) const
double convPx2mm(double fPix)
Definition: pdfihelper.hxx:53
std::vector< double > DashArray
Definition: pdfihelper.hxx:104
const css::uno::Reference< css::i18n::XBreakIterator > & GetBreakIterator()
ImageContainer & rImages
sal_Int32 getGCId(const GraphicsContext &rGC)
css::uno::Reference< css::i18n::XCharacterClassification > mxCharClass
virtual void visit(HyperlinkElement &, const std::list< std::unique_ptr< Element > >::const_iterator &) override
css::uno::Reference< css::task::XStatusIndicator > xStatusIndicator
std::list< std::unique_ptr< Element > > Children
OUString GetLineJoinString() const
Definition: pdfihelper.hxx:149
int i
bool decompose(B2DTuple &rScale, B2DTuple &rTranslate, double &rRotate, double &rShearX) const
double GetAverageTransformationScale(const basegfx::B2DHomMatrix &matrix)
Definition: pdfihelper.cxx:32
basegfx::B2DHomMatrix Transformation
Definition: pdfihelper.hxx:107
void resolveFontStyles(PDFIProcessor const &rProc)
sal_Int32 scale
OUString getStyleName(sal_Int32 nStyle) const
Definition: style.cxx:146
OUString getColorString(const css::rendering::ARGBColor &)
Convert color to "#FEFEFE" color notation.
basegfx::B2DPoint getPrevControlPoint(sal_uInt32 nIndex) const
float u
void scale(double fX, double fY)
void setNextControlPoint(sal_uInt32 nIndex, const basegfx::B2DPoint &rValue)
dictionary props
StyleContainer & rStyles
void FillDashStyleProps(PropertyMap &props, const std::vector< double > &dashArray, double scale)
Definition: pdfihelper.cxx:40
const css::uno::Reference< css::i18n::XCharacterClassification > & GetCharacterClassification()
exports com.sun.star. style
css::uno::Reference< css::i18n::XBreakIterator > mxBreakIter
const css::uno::Reference< css::task::XStatusIndicator > & getStatusIndicator() const
bool isNextControlPointUsed(sal_uInt32 nIndex) const
void updateGeometryWith(const Element *pMergeFrom)
Union element geometry with given element.
sal_uInt32 count() const
void setY(double fY)
SvBaseLink * pLink
double convPx2mmPrec2(double fPix)
Definition: pdfihelper.hxx:67
static void setParent(std::list< std::unique_ptr< Element >>::iterator const &el, Element *pNewParent)
el must be a valid dereferenceable iterator of el->Parent->Children pNewParent must not be NULL ...
sal_Int32 getStyleId(const Style &rStyle)
Definition: style.hxx:152
static void sortElements(Element *pElement)
QPRO_FUNC_TYPE nType
const char * name
void translate(double fX, double fY)
XmlEmitter & rEmitter
css::uno::Reference< css::uno::XComponentContext > m_xContext
sal_Int32 getStandardStyleId(const OString &rFamily)
Definition: style.cxx:76
void optimizeTextElements(Element &rParent)
OUString exportToSvgD(const B2DPolyPolygon &rPolyPoly, bool bUseRelativeCoordinates, bool bDetectQuadraticBeziers, bool bHandleRelativeNextPointCompatible, bool bOOXMLMotionPath=false)
static void SetFontsizeProperties(PropertyMap &props, double fontSize)
virtual void visit(HyperlinkElement &, const std::list< std::unique_ptr< Element > >::const_iterator &) override
void writeBase64EncodedStream(ImageId nImageId, EmitContext &rContext)
OUString GetLineCapString() const
Definition: pdfihelper.hxx:163
virtual void write(const OUString &rString)=0
Write PCTEXT as-is to output.
const bool m_bWriteDrawDocument
writes Impress doc when false
void setPrevControlPoint(sal_uInt32 nIndex, const basegfx::B2DPoint &rValue)
OUStringBuffer Text
virtual void endTag(const char *pTag)=0
Close previously opened tag.
sal_uInt32 count() const
basegfx::B2DPoint const & getB2DPoint(sal_uInt32 nIndex) const