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:
10  *
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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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 
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 <com/sun/star/i18n/BreakIterator.hpp>
32 #include <com/sun/star/i18n/CharacterClassification.hpp>
33 #include <com/sun/star/i18n/ScriptType.hpp>
34 #include <com/sun/star/i18n/DirectionProperty.hpp>
35 
36 #include <string.h>
37 
38 using namespace ::com::sun::star;
39 using namespace ::com::sun::star::lang;
40 using namespace ::com::sun::star::i18n;
41 using namespace ::com::sun::star::uno;
42 
43 namespace pdfi
44 {
45 
46 const Reference< XBreakIterator >& DrawXmlOptimizer::GetBreakIterator()
47 {
48  if ( !mxBreakIter.is() )
49  {
50  Reference< XComponentContext > xContext( m_rProcessor.m_xContext, uno::UNO_SET_THROW );
51  mxBreakIter = BreakIterator::create(xContext);
52  }
53  return mxBreakIter;
54 }
55 
56 const Reference< XCharacterClassification >& DrawXmlEmitter::GetCharacterClassification()
57 {
58  if ( !mxCharClass.is() )
59  {
60  Reference< XComponentContext > xContext( m_rEmitContext.m_xContext, uno::UNO_SET_THROW );
61  mxCharClass = CharacterClassification::create(xContext);
62  }
63  return mxCharClass;
64 }
65 
66 void DrawXmlEmitter::visit( HyperlinkElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
67 {
68  if( elem.Children.empty() )
69  return;
70 
71  const char* pType = dynamic_cast<DrawElement*>(elem.Children.front().get()) ? "draw:a" : "text:a";
72 
73  PropertyMap aProps;
74  aProps[ "xlink:type" ] = "simple";
75  aProps[ "xlink:href" ] = elem.URI;
76  aProps[ "office:target-frame-name" ] = "_blank";
77  aProps[ "xlink:show" ] = "new";
78 
79  m_rEmitContext.rEmitter.beginTag( pType, aProps );
80  auto this_it = elem.Children.begin();
81  while( this_it != elem.Children.end() && this_it->get() != &elem )
82  {
83  (*this_it)->visitedBy( *this, this_it );
84  ++this_it;
85  }
87 }
88 
89 void DrawXmlEmitter::visit( TextElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
90 {
91  if( elem.Text.isEmpty() )
92  return;
93 
94  OUString strSpace(u' ');
95  OUString strNbSpace(u'\x00A0');
96  OUString tabSpace(u'\x0009');
97  PropertyMap aProps;
98  if( elem.StyleId != -1 )
99  {
100  aProps[ OUString( "text:style-name" ) ] =
102  }
103 
104  OUString str(elem.Text.getStr());
105 
106  // Check for RTL
107  bool isRTL = false;
109  if( xCC.is() )
110  {
111  for(int i=1; i< elem.Text.getLength(); i++)
112  {
113  css::i18n::DirectionProperty nType = static_cast<css::i18n::DirectionProperty>(xCC->getCharacterDirection( str, i ));
114  if ( nType == css::i18n::DirectionProperty_RIGHT_TO_LEFT ||
115  nType == css::i18n::DirectionProperty_RIGHT_TO_LEFT_ARABIC ||
116  nType == css::i18n::DirectionProperty_RIGHT_TO_LEFT_EMBEDDING ||
117  nType == css::i18n::DirectionProperty_RIGHT_TO_LEFT_OVERRIDE
118  )
119  isRTL = true;
120  }
121  }
122 
123  if (isRTL) // If so, reverse string
124  str = PDFIProcessor::mirrorString( str );
125 
126  m_rEmitContext.rEmitter.beginTag( "text:span", aProps );
127 
128  for(int i=0; i< elem.Text.getLength(); i++)
129  {
130  OUString strToken= str.copy(i,1) ;
131  if( strSpace == strToken || strNbSpace == strToken )
132  {
133  aProps[ "text:c" ] = "1";
134  m_rEmitContext.rEmitter.beginTag( "text:s", aProps );
135  m_rEmitContext.rEmitter.endTag( "text:s");
136  }
137  else
138  {
139  if( tabSpace == strToken )
140  {
141  m_rEmitContext.rEmitter.beginTag( "text:tab", aProps );
142  m_rEmitContext.rEmitter.endTag( "text:tab");
143  }
144  else
145  {
146  m_rEmitContext.rEmitter.write( strToken );
147  }
148  }
149  }
150 
151  auto this_it = elem.Children.begin();
152  while( this_it != elem.Children.end() && this_it->get() != &elem )
153  {
154  (*this_it)->visitedBy( *this, this_it );
155  ++this_it;
156  }
157 
158  m_rEmitContext.rEmitter.endTag( "text:span" );
159 }
160 
161 void DrawXmlEmitter::visit( ParagraphElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
162 {
163  PropertyMap aProps;
164  if( elem.StyleId != -1 )
165  {
166  aProps[ "text:style-name" ] = m_rEmitContext.rStyles.getStyleName( elem.StyleId );
167  }
168  const char* pTagType = "text:p";
169  if( elem.Type == ParagraphElement::Headline )
170  pTagType = "text:h";
171  m_rEmitContext.rEmitter.beginTag( pTagType, aProps );
172 
173  auto this_it = elem.Children.begin();
174  while( this_it != elem.Children.end() && this_it->get() != &elem )
175  {
176  (*this_it)->visitedBy( *this, this_it );
177  ++this_it;
178  }
179 
180  m_rEmitContext.rEmitter.endTag( pTagType );
181 }
182 
184  PropertyMap& rProps,
185  const EmitContext& rEmitContext,
186  bool bWasTransformed
187  )
188 {
189  rProps[ "draw:z-index" ] = OUString::number( rElem.ZOrder );
190  rProps[ "draw:style-name"] = rEmitContext.rStyles.getStyleName( rElem.StyleId );
191 
192  if (rElem.IsForText)
193  rProps["draw:text-style-name"] = rEmitContext.rStyles.getStyleName(rElem.TextStyleId);
194 
195  const GraphicsContext& rGC =
196  rEmitContext.rProcessor.getGraphicsContext( rElem.GCId );
197 
198  if (bWasTransformed)
199  {
200  rProps[ "svg:x" ] = convertPixelToUnitString(rElem.x);
201  rProps[ "svg:y" ] = convertPixelToUnitString(rElem.y);
202  rProps[ "svg:width" ] = convertPixelToUnitString(rElem.w);
203  rProps[ "svg:height" ] = convertPixelToUnitString(rElem.h);
204  }
205  else
206  {
207  OUStringBuffer aBuf(256);
208 
210 
211  if (rElem.MirrorVertical)
212  {
214  mat2.translate(0, -0.5);
215  mat2.scale(1, -1);
216  mat2.translate(0, 0.5);
217  mat = mat * mat2;
218  }
219 
220  double scale = convPx2mm(100);
221  mat.scale(scale, scale);
222 
223  aBuf.append("matrix(");
224  aBuf.append(mat.get(0, 0));
225  aBuf.append(' ');
226  aBuf.append(mat.get(1, 0));
227  aBuf.append(' ');
228  aBuf.append(mat.get(0, 1));
229  aBuf.append(' ');
230  aBuf.append(mat.get(1, 1));
231  aBuf.append(' ');
232  aBuf.append(mat.get(0, 2));
233  aBuf.append(' ');
234  aBuf.append(mat.get(1, 2));
235  aBuf.append(")");
236 
237  rProps["draw:transform"] = aBuf.makeStringAndClear();
238  }
239 }
240 
241 void DrawXmlEmitter::visit( FrameElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
242 {
243  if( elem.Children.empty() )
244  return;
245 
246  bool bTextBox = (dynamic_cast<ParagraphElement*>(elem.Children.front().get()) != nullptr);
247  PropertyMap aFrameProps;
248  fillFrameProps( elem, aFrameProps, m_rEmitContext, false );
249  m_rEmitContext.rEmitter.beginTag( "draw:frame", aFrameProps );
250  if( bTextBox )
251  m_rEmitContext.rEmitter.beginTag( "draw:text-box", PropertyMap() );
252 
253  auto this_it = elem.Children.begin();
254  while( this_it != elem.Children.end() && this_it->get() != &elem )
255  {
256  (*this_it)->visitedBy( *this, this_it );
257  ++this_it;
258  }
259 
260  if( bTextBox )
261  m_rEmitContext.rEmitter.endTag( "draw:text-box" );
262  m_rEmitContext.rEmitter.endTag( "draw:frame" );
263 }
264 
265 void DrawXmlEmitter::visit( PolyPolyElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
266 {
267  elem.updateGeometry();
268  /* note:
269  * aw recommends using 100dth of mm in all respects since the xml import
270  * (a) is buggy (see issue 37213)
271  * (b) is optimized for 100dth of mm and does not scale itself then,
272  * this does not gain us speed but makes for smaller rounding errors since
273  * the xml importer coordinates are integer based
274  */
275  for (sal_uInt32 i = 0; i< elem.PolyPoly.count(); i++)
276  {
277  basegfx::B2DPolygon b2dPolygon = elem.PolyPoly.getB2DPolygon( i );
278 
279  for ( sal_uInt32 j = 0; j< b2dPolygon.count(); j++ )
280  {
282  basegfx::B2DPoint nextPoint;
283  point = b2dPolygon.getB2DPoint( j );
284 
285  basegfx::B2DPoint prevPoint = b2dPolygon.getPrevControlPoint( j ) ;
286 
287  point.setX( convPx2mmPrec2( point.getX() )*100.0 );
288  point.setY( convPx2mmPrec2( point.getY() )*100.0 );
289 
290  if ( b2dPolygon.isPrevControlPointUsed( j ) )
291  {
292  prevPoint.setX( convPx2mmPrec2( prevPoint.getX() )*100.0 );
293  prevPoint.setY( convPx2mmPrec2( prevPoint.getY() )*100.0 );
294  }
295 
296  if ( b2dPolygon.isNextControlPointUsed( j ) )
297  {
298  nextPoint = b2dPolygon.getNextControlPoint( j ) ;
299  nextPoint.setX( convPx2mmPrec2( nextPoint.getX() )*100.0 );
300  nextPoint.setY( convPx2mmPrec2( nextPoint.getY() )*100.0 );
301  }
302 
303  b2dPolygon.setB2DPoint( j, point );
304 
305  if ( b2dPolygon.isPrevControlPointUsed( j ) )
306  b2dPolygon.setPrevControlPoint( j , prevPoint ) ;
307 
308  if ( b2dPolygon.isNextControlPointUsed( j ) )
309  b2dPolygon.setNextControlPoint( j , nextPoint ) ;
310  }
311 
312  elem.PolyPoly.setB2DPolygon( i, b2dPolygon );
313  }
314 
315  PropertyMap aProps;
316  // PDFIProcessor transforms geometrical objects, not images and text
317  // so we need to tell fillFrameProps here that the transformation for
318  // a PolyPolyElement was already applied (aside from translation)
319  fillFrameProps( elem, aProps, m_rEmitContext, true );
320  OUStringBuffer aBuf( 64 );
321  aBuf.append( "0 0 " );
322  aBuf.append( convPx2mmPrec2(elem.w)*100.0 );
323  aBuf.append( ' ' );
324  aBuf.append( convPx2mmPrec2(elem.h)*100.0 );
325  aProps[ "svg:viewBox" ] = aBuf.makeStringAndClear();
326  aProps[ "svg:d" ] = basegfx::utils::exportToSvgD( elem.PolyPoly, false, true, false );
327 
328  m_rEmitContext.rEmitter.beginTag( "draw:path", aProps );
329  m_rEmitContext.rEmitter.endTag( "draw:path" );
330 }
331 
332 void DrawXmlEmitter::visit( ImageElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
333 {
334  PropertyMap aImageProps;
335  m_rEmitContext.rEmitter.beginTag( "draw:image", aImageProps );
336  m_rEmitContext.rEmitter.beginTag( "office:binary-data", PropertyMap() );
338  m_rEmitContext.rEmitter.endTag( "office:binary-data" );
339  m_rEmitContext.rEmitter.endTag( "draw:image" );
340 }
341 
342 void DrawXmlEmitter::visit( PageElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
343 {
344  PropertyMap aPageProps;
345  aPageProps[ "draw:master-page-name" ] = m_rEmitContext.rStyles.getStyleName( elem.StyleId );
346 
347  m_rEmitContext.rEmitter.beginTag("draw:page", aPageProps);
348 
350  m_rEmitContext.xStatusIndicator->setValue( elem.PageNumber );
351 
352  auto this_it = elem.Children.begin();
353  while( this_it != elem.Children.end() && this_it->get() != &elem )
354  {
355  (*this_it)->visitedBy( *this, this_it );
356  ++this_it;
357  }
358 
359  m_rEmitContext.rEmitter.endTag("draw:page");
360 }
361 
362 void DrawXmlEmitter::visit( DocumentElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator&)
363 {
364  m_rEmitContext.rEmitter.beginTag( "office:body", PropertyMap() );
365  m_rEmitContext.rEmitter.beginTag( m_bWriteDrawDocument ? "office:drawing" : "office:presentation",
366  PropertyMap() );
367 
368  auto this_it = elem.Children.begin();
369  while( this_it != elem.Children.end() && this_it->get() != &elem )
370  {
371  (*this_it)->visitedBy( *this, this_it );
372  ++this_it;
373  }
374 
375  m_rEmitContext.rEmitter.endTag( m_bWriteDrawDocument ? "office:drawing" : "office:presentation" );
376  m_rEmitContext.rEmitter.endTag( "office:body" );
377 }
378 
379 
380 void DrawXmlOptimizer::visit( HyperlinkElement&, const std::list< std::unique_ptr<Element> >::const_iterator& )
381 {
382 }
383 
384 void DrawXmlOptimizer::visit( TextElement&, const std::list< std::unique_ptr<Element> >::const_iterator&)
385 {
386 }
387 
388 void DrawXmlOptimizer::visit( FrameElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
389 {
390  elem.applyToChildren(*this);
391 }
392 
393 void DrawXmlOptimizer::visit( ImageElement&, const std::list< std::unique_ptr<Element> >::const_iterator& )
394 {
395 }
396 
397 void DrawXmlOptimizer::visit( PolyPolyElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& elemIt )
398 {
399  /* note: optimize two consecutive PolyPolyElements that
400  * have the same path but one of which is a stroke while
401  * the other is a fill
402  */
403  if( !elem.Parent )
404  return;
405 
406  // find following PolyPolyElement in parent's children list
407  if( elemIt == elem.Parent->Children.end() )
408  return;
409  auto next_it = elemIt;
410  ++next_it;
411  if( next_it == elem.Parent->Children.end() )
412  return;
413 
414  PolyPolyElement* pNext = dynamic_cast<PolyPolyElement*>(next_it->get());
415  // TODO(F2): this comparison fails for OOo-generated polygons with beziers.
416  if( !pNext || pNext->PolyPoly != elem.PolyPoly )
417  return;
418 
419  const GraphicsContext& rNextGC =
421  const GraphicsContext& rThisGC =
423 
424  if( !(rThisGC.BlendMode == rNextGC.BlendMode &&
425  rThisGC.Flatness == rNextGC.Flatness &&
426  rThisGC.Transformation == rNextGC.Transformation &&
427  rThisGC.Clip == rNextGC.Clip &&
428  rThisGC.FillColor.Red == rNextGC.FillColor.Red &&
429  rThisGC.FillColor.Green== rNextGC.FillColor.Green &&
430  rThisGC.FillColor.Blue == rNextGC.FillColor.Blue &&
431  rThisGC.FillColor.Alpha== rNextGC.FillColor.Alpha &&
432  pNext->Action == PATH_STROKE &&
433  (elem.Action == PATH_FILL || elem.Action == PATH_EOFILL)) )
434  return;
435 
436  GraphicsContext aGC = rThisGC;
437  aGC.LineJoin = rNextGC.LineJoin;
438  aGC.LineCap = rNextGC.LineCap;
439  aGC.LineWidth = rNextGC.LineWidth;
440  aGC.MiterLimit= rNextGC.MiterLimit;
441  aGC.DashArray = rNextGC.DashArray;
442  aGC.LineColor = rNextGC.LineColor;
443  elem.GCId = m_rProcessor.getGCId( aGC );
444 
445  elem.Action |= pNext->Action;
446 
447  elem.Children.splice( elem.Children.end(), pNext->Children );
448  elem.Parent->Children.erase(next_it);
449 }
450 
451 void DrawXmlOptimizer::visit( ParagraphElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
452 {
453  optimizeTextElements( elem );
454 
455  elem.applyToChildren(*this);
456 }
457 
458 void DrawXmlOptimizer::visit( PageElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
459 {
460  if( m_rProcessor.getStatusIndicator().is() )
461  m_rProcessor.getStatusIndicator()->setValue( elem.PageNumber );
462 
463  // resolve hyperlinks
464  elem.resolveHyperlinks();
465 
466  elem.resolveFontStyles( m_rProcessor ); // underlines and such
467 
468  // FIXME: until hyperlinks and font effects are adjusted for
469  // geometrical search handle them before sorting
471 
472  // find paragraphs in text
473  ParagraphElement* pCurPara = nullptr;
474  std::list< std::unique_ptr<Element> >::iterator page_element, next_page_element;
475  next_page_element = elem.Children.begin();
476  double fCurLineHeight = 0.0; // average height of text items in current para
477  int nCurLineElements = 0; // number of line contributing elements in current para
478  double line_left = elem.w, line_right = 0.0;
479  double column_width = elem.w*0.75; // estimate text width
480  // TODO: guess columns
481  while( next_page_element != elem.Children.end() )
482  {
483  page_element = next_page_element++;
484  ParagraphElement* pPagePara = dynamic_cast<ParagraphElement*>(page_element->get());
485  if( pPagePara )
486  {
487  pCurPara = pPagePara;
488  // adjust line height and text items
489  fCurLineHeight = 0.0;
490  nCurLineElements = 0;
491  for( const auto& rxChild : pCurPara->Children )
492  {
493  TextElement* pTestText = dynamic_cast<TextElement*>(rxChild.get());
494  if( pTestText )
495  {
496  fCurLineHeight = (fCurLineHeight*double(nCurLineElements) + pTestText->h)/double(nCurLineElements+1);
497  nCurLineElements++;
498  }
499  }
500  continue;
501  }
502 
503  HyperlinkElement* pLink = dynamic_cast<HyperlinkElement*>(page_element->get());
504  DrawElement* pDraw = dynamic_cast<DrawElement*>(page_element->get());
505  if( ! pDraw && pLink && ! pLink->Children.empty() )
506  pDraw = dynamic_cast<DrawElement*>(pLink->Children.front().get() );
507  if( pDraw )
508  {
509  // insert small drawing objects as character, else leave them page bound
510 
511  bool bInsertToParagraph = false;
512  // first check if this is either inside the paragraph
513  if( pCurPara && pDraw->y < pCurPara->y + pCurPara->h )
514  {
515  if( pDraw->h < fCurLineHeight * 1.5 )
516  {
517  bInsertToParagraph = true;
518  fCurLineHeight = (fCurLineHeight*double(nCurLineElements) + pDraw->h)/double(nCurLineElements+1);
519  nCurLineElements++;
520  // mark draw element as character
521  pDraw->isCharacter = true;
522  }
523  }
524  // or perhaps the draw element begins a new paragraph
525  else if( next_page_element != elem.Children.end() )
526  {
527  TextElement* pText = dynamic_cast<TextElement*>(next_page_element->get());
528  if( ! pText )
529  {
530  ParagraphElement* pPara = dynamic_cast<ParagraphElement*>(next_page_element->get());
531  if( pPara && ! pPara->Children.empty() )
532  pText = dynamic_cast<TextElement*>(pPara->Children.front().get());
533  }
534  if( pText && // check there is a text
535  pDraw->h < pText->h*1.5 && // and it is approx the same height
536  // and either upper or lower edge of pDraw is inside text's vertical range
537  ( ( pDraw->y >= pText->y && pDraw->y <= pText->y+pText->h ) ||
538  ( pDraw->y+pDraw->h >= pText->y && pDraw->y+pDraw->h <= pText->y+pText->h )
539  )
540  )
541  {
542  bInsertToParagraph = true;
543  fCurLineHeight = pDraw->h;
544  nCurLineElements = 1;
545  line_left = pDraw->x;
546  line_right = pDraw->x + pDraw->w;
547  // begin a new paragraph
548  pCurPara = nullptr;
549  // mark draw element as character
550  pDraw->isCharacter = true;
551  }
552  }
553 
554  if( ! bInsertToParagraph )
555  {
556  pCurPara = nullptr;
557  continue;
558  }
559  }
560 
561  TextElement* pText = dynamic_cast<TextElement*>(page_element->get());
562  if( ! pText && pLink && ! pLink->Children.empty() )
563  pText = dynamic_cast<TextElement*>(pLink->Children.front().get());
564  if( pText )
565  {
566  Element* pGeo = pLink ? static_cast<Element*>(pLink) :
567  static_cast<Element*>(pText);
568  if( pCurPara )
569  {
570  // there was already a text element, check for a new paragraph
571  if( nCurLineElements > 0 )
572  {
573  // if the new text is significantly distant from the paragraph
574  // begin a new paragraph
575  if( pGeo->y > pCurPara->y + pCurPara->h + fCurLineHeight*0.5 )
576  pCurPara = nullptr; // insert new paragraph
577  else if( pGeo->y > (pCurPara->y+pCurPara->h - fCurLineHeight*0.05) )
578  {
579  // new paragraph if either the last line of the paragraph
580  // was significantly shorter than the paragraph as a whole
581  if( (line_right - line_left) < pCurPara->w*0.75 )
582  pCurPara = nullptr;
583  // or the last line was significantly smaller than the column width
584  else if( (line_right - line_left) < column_width*0.75 )
585  pCurPara = nullptr;
586  }
587  }
588 
589 
590  }
591 
592 
593  // update line height/width
594  if( pCurPara )
595  {
596  fCurLineHeight = (fCurLineHeight*double(nCurLineElements) + pGeo->h)/double(nCurLineElements+1);
597  nCurLineElements++;
598  if( pGeo->x < line_left )
599  line_left = pGeo->x;
600  if( pGeo->x+pGeo->w > line_right )
601  line_right = pGeo->x+pGeo->w;
602  }
603  else
604  {
605  fCurLineHeight = pGeo->h;
606  nCurLineElements = 1;
607  line_left = pGeo->x;
608  line_right = pGeo->x + pGeo->w;
609  }
610  }
611 
612 
613  // move element to current paragraph
614  if (! pCurPara ) // new paragraph, insert one
615  {
616  pCurPara = ElementFactory::createParagraphElement( nullptr );
617  // set parent
618  pCurPara->Parent = &elem;
619  //insert new paragraph before current element
620  page_element = elem.Children.insert( page_element, std::unique_ptr<Element>(pCurPara) );
621  // forward iterator to current element again
622  ++ page_element;
623  // update next_element which is now invalid
624  next_page_element = page_element;
625  ++ next_page_element;
626  }
627  Element* pCurEle = page_element->get();
628  Element::setParent( page_element, pCurPara );
629  OSL_ENSURE( !pText || pCurEle == pText || pCurEle == pLink, "paragraph child list in disorder" );
630  if( pText || pDraw )
631  pCurPara->updateGeometryWith( pCurEle );
632  }
633 
634  // process children
635  elem.applyToChildren(*this);
636 }
637 
638 static bool isSpaces(TextElement* pTextElem)
639 {
640  for (sal_Int32 i = 0; i != pTextElem->Text.getLength(); ++i) {
641  if (pTextElem->Text[i] != ' ') {
642  return false;
643  }
644  }
645  return true;
646 }
647 
648 static bool notTransformed(const GraphicsContext& GC)
649 {
650  return
651  rtl::math::approxEqual(GC.Transformation.get(0,0), 100.00) &&
652  GC.Transformation.get(1,0) == 0.00 &&
653  GC.Transformation.get(0,1) == 0.00 &&
654  rtl::math::approxEqual(GC.Transformation.get(1,1), -100.00);
655 }
656 
658 {
659  if( rParent.Children.empty() ) // this should not happen
660  {
661  OSL_FAIL( "empty paragraph optimized" );
662  return;
663  }
664 
665  // concatenate child elements with same font id
666  auto next = rParent.Children.begin();
667  auto it = next++;
668 
669  while( next != rParent.Children.end() )
670  {
671  bool bConcat = false;
672  TextElement* pCur = dynamic_cast<TextElement*>(it->get());
673 
674  if( pCur )
675  {
676  TextElement* pNext = dynamic_cast<TextElement*>(next->get());
677  bool isComplex = false;
678  OUString str(pCur->Text.getStr());
679  for(int i=0; i< str.getLength(); i++)
680  {
681  sal_Int16 nType = GetBreakIterator()->getScriptType( str, i );
682  if (nType == css::i18n::ScriptType::COMPLEX)
683  isComplex = true;
684  }
685  bool bPara = strspn("ParagraphElement", typeid(rParent).name());
686  ParagraphElement* pPara = dynamic_cast<ParagraphElement*>(&rParent);
687  if (bPara && pPara && isComplex)
688  pPara->bRtl = true;
689  if( pNext )
690  {
691  const GraphicsContext& rCurGC = m_rProcessor.getGraphicsContext( pCur->GCId );
692  const GraphicsContext& rNextGC = m_rProcessor.getGraphicsContext( pNext->GCId );
693 
694  // line and space optimization; works only in strictly horizontal mode
695 
696  // concatenate consecutive text elements unless there is a
697  // font or text color or matrix change, leave a new span in that case
698  if( (pCur->FontId == pNext->FontId || isSpaces(pNext)) &&
699  rCurGC.FillColor.Red == rNextGC.FillColor.Red &&
700  rCurGC.FillColor.Green == rNextGC.FillColor.Green &&
701  rCurGC.FillColor.Blue == rNextGC.FillColor.Blue &&
702  rCurGC.FillColor.Alpha == rNextGC.FillColor.Alpha &&
703  (rCurGC.Transformation == rNextGC.Transformation || notTransformed(rNextGC))
704  )
705  {
706  pCur->updateGeometryWith( pNext );
707  // append text to current element
708  pCur->Text.append( pNext->Text );
709 
710  str = pCur->Text.getStr();
711  for(int i=0; i< str.getLength(); i++)
712  {
713  sal_Int16 nType = GetBreakIterator()->getScriptType( str, i );
714  if (nType == css::i18n::ScriptType::COMPLEX)
715  isComplex = true;
716  }
717  if (bPara && pPara && isComplex)
718  pPara->bRtl = true;
719  // append eventual children to current element
720  // and clear children (else the children just
721  // appended to pCur would be destroyed)
722  pCur->Children.splice( pCur->Children.end(), pNext->Children );
723  // get rid of the now useless element
724  rParent.Children.erase( next );
725  bConcat = true;
726  }
727  }
728  }
729  else if( dynamic_cast<HyperlinkElement*>(it->get()) )
730  optimizeTextElements( **it );
731  if ( bConcat )
732  next = it;
733  else
734  ++it;
735  ++next;
736  }
737 }
738 
739 void DrawXmlOptimizer::visit( DocumentElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator&)
740 {
741  elem.applyToChildren(*this);
742 }
743 
744 
745 void DrawXmlFinalizer::visit( PolyPolyElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
746 {
747  // xxx TODO copied from DrawElement
749 
750  PropertyMap aProps;
751  aProps[ "style:family" ] = "graphic";
752  aProps[ "style:parent-style-name" ] = "standard";
753  // generate standard graphic style if necessary
755 
756  PropertyMap aGCProps;
757  if (elem.Action & PATH_STROKE)
758  {
760  if (rGC.DashArray.size() < 2)
761  {
762  aGCProps[ "draw:stroke" ] = "solid";
763  }
764  else
765  {
767  FillDashStyleProps(props, rGC.DashArray, scale);
768  StyleContainer::Style style("draw:stroke-dash", props);
769 
770  aGCProps[ "draw:stroke" ] = "dash";
771  aGCProps[ "draw:stroke-dash" ] =
774  }
775 
776  aGCProps[ "svg:stroke-color" ] = getColorString(rGC.LineColor);
777  if (rGC.LineColor.Alpha != 1.0)
778  aGCProps["svg:stroke-opacity"] = getPercentString(rGC.LineColor.Alpha * 100.0);
779  aGCProps[ "svg:stroke-width" ] = convertPixelToUnitString(rGC.LineWidth * scale);
780  aGCProps[ "draw:stroke-linejoin" ] = rGC.GetLineJoinString();
781  aGCProps[ "svg:stroke-linecap" ] = rGC.GetLineCapString();
782  }
783  else
784  {
785  aGCProps[ "draw:stroke" ] = "none";
786  }
787 
788  // TODO(F1): check whether stuff could be emulated by gradient/bitmap/hatch
789  if( elem.Action & (PATH_FILL | PATH_EOFILL) )
790  {
791  aGCProps[ "draw:fill" ] = "solid";
792  aGCProps[ "draw:fill-color" ] = getColorString(rGC.FillColor);
793  if (rGC.FillColor.Alpha != 1.0)
794  aGCProps["draw:opacity"] = getPercentString(rGC.FillColor.Alpha * 100.0);
795  }
796  else
797  {
798  aGCProps[ "draw:fill" ] = "none";
799  }
800 
801  StyleContainer::Style aStyle( "style:style", aProps );
802  StyleContainer::Style aSubStyle( "style:graphic-properties", aGCProps );
803  aStyle.SubStyles.push_back( &aSubStyle );
804 
805  elem.StyleId = m_rStyleContainer.getStyleId( aStyle );
806 }
807 
808 void DrawXmlFinalizer::visit( HyperlinkElement&, const std::list< std::unique_ptr<Element> >::const_iterator& )
809 {
810 }
811 
812 static void SetFontsizeProperties(PropertyMap& props, double fontSize)
813 {
814  OUString aFSize = OUString::number(fontSize * 72 / PDFI_OUTDEV_RESOLUTION) + "pt";
815  props["fo:font-size"] = aFSize;
816  props["style:font-size-asian"] = aFSize;
817  props["style:font-size-complex"] = aFSize;
818 }
819 
820 void DrawXmlFinalizer::visit( TextElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
821 {
822  const FontAttributes& rFont = m_rProcessor.getFont( elem.FontId );
823  PropertyMap aProps;
824  aProps[ "style:family" ] = "text";
825 
826  PropertyMap aFontProps;
827 
828  // family name
829  aFontProps[ "fo:font-family" ] = rFont.familyName;
830  aFontProps[ "style:font-family-complex" ] = rFont.familyName;
831 
832  // bold
833  if( rFont.isBold )
834  {
835  aFontProps[ "fo:font-weight" ] = "bold";
836  aFontProps[ "fo:font-weight-asian" ] = "bold";
837  aFontProps[ "style:font-weight-complex" ] = "bold";
838  }
839  // italic
840  if( rFont.isItalic )
841  {
842  aFontProps[ "fo:font-style" ] = "italic";
843  aFontProps[ "fo:font-style-asian" ] = "italic";
844  aFontProps[ "style:font-style-complex" ] = "italic";
845  }
846  // underline
847  if( rFont.isUnderline )
848  {
849  aFontProps[ "style:text-underline-style" ] = "solid";
850  aFontProps[ "style:text-underline-width" ] = "auto";
851  aFontProps[ "style:text-underline-color" ] = "font-color";
852  }
853  // outline
854  if( rFont.isOutline )
855  {
856  aFontProps[ "style:text-outline" ] = "true";
857  }
858 
859  // size
860  SetFontsizeProperties(aFontProps, rFont.size);
861 
862  // color
864  aFontProps[ "fo:color" ] = getColorString( rFont.isOutline ? rGC.LineColor : rGC.FillColor );
865 
866  // scale
867  double fRotate, fShearX;
868  basegfx::B2DTuple aScale, aTranslation;
869  rGC.Transformation.decompose(aScale, aTranslation, fRotate, fShearX);
870  double textScale = 100 * aScale.getX() / aScale.getY();
871  if (((textScale >= 1) && (textScale <= 99)) ||
872  ((textScale >= 101) && (textScale <= 999)))
873  {
874  aFontProps[ "style:text-scale" ] = getPercentString(textScale);
875  }
876 
877  StyleContainer::Style aStyle( "style:style", aProps );
878  StyleContainer::Style aSubStyle( "style:text-properties", aFontProps );
879  aStyle.SubStyles.push_back( &aSubStyle );
880  elem.StyleId = m_rStyleContainer.getStyleId( aStyle );
881 }
882 
883 void DrawXmlFinalizer::visit( ParagraphElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
884 {
885 
886  PropertyMap aProps;
887  aProps[ "style:family" ] = "paragraph";
888  // generate standard paragraph style if necessary
889  m_rStyleContainer.getStandardStyleId( "paragraph" );
890 
891  PropertyMap aParProps;
892 
893  aParProps[ "fo:text-align"] = "start";
894  if (elem.bRtl)
895  aParProps[ "style:writing-mode"] = "rl-tb";
896  else
897  aParProps[ "style:writing-mode"] = "lr-tb";
898 
899  StyleContainer::Style aStyle( "style:style", aProps );
900  StyleContainer::Style aSubStyle( "style:paragraph-properties", aParProps );
901  aStyle.SubStyles.push_back( &aSubStyle );
902 
903  elem.StyleId = m_rStyleContainer.getStyleId( aStyle );
904 
905  elem.applyToChildren(*this);
906 }
907 
908 void DrawXmlFinalizer::visit( FrameElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator&)
909 {
910  PropertyMap props1;
911  props1[ "style:family" ] = "graphic";
912  props1[ "style:parent-style-name" ] = "standard";
913  // generate standard graphic style if necessary
915 
916  PropertyMap aGCProps;
917 
918  aGCProps[ "draw:stroke" ] = "none";
919  aGCProps[ "draw:fill" ] = "none";
920  aGCProps[ "draw:auto-grow-height" ] = "true";
921  aGCProps[ "draw:auto-grow-width" ] = "true";
922  aGCProps[ "draw:textarea-horizontal-align" ] = "left";
923  aGCProps[ "draw:textarea-vertical-align" ] = "top";
924  aGCProps[ "fo:min-height"] = "0cm";
925  aGCProps[ "fo:min-width"] = "0cm";
926  aGCProps[ "fo:padding-top" ] = "0cm";
927  aGCProps[ "fo:padding-left" ] = "0cm";
928  aGCProps[ "fo:padding-right" ] = "0cm";
929  aGCProps[ "fo:padding-bottom" ] = "0cm";
930 
931  StyleContainer::Style style1( "style:style", props1 );
932  StyleContainer::Style subStyle1( "style:graphic-properties", aGCProps );
933  style1.SubStyles.push_back(&subStyle1);
934 
935  elem.StyleId = m_rStyleContainer.getStyleId(style1);
936 
937  if (elem.IsForText)
938  {
939  PropertyMap props2;
940  props2["style:family"] = "paragraph";
941 
942  PropertyMap textProps;
943  SetFontsizeProperties(textProps, elem.FontSize);
944 
945  StyleContainer::Style style2("style:style", props2);
946  StyleContainer::Style subStyle2("style:text-properties", textProps);
947  style2.SubStyles.push_back(&subStyle2);
949  }
950 
951  elem.applyToChildren(*this);
952 }
953 
954 void DrawXmlFinalizer::visit( ImageElement&, const std::list< std::unique_ptr<Element> >::const_iterator& )
955 {
956 }
957 
958 void DrawXmlFinalizer::visit( PageElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
959 {
960  if( m_rProcessor.getStatusIndicator().is() )
961  m_rProcessor.getStatusIndicator()->setValue( elem.PageNumber );
962 
963  // transform from pixel to mm
964  double page_width = convPx2mm( elem.w ), page_height = convPx2mm( elem.h );
965 
966  // calculate page margins out of the relevant children (paragraphs)
967  elem.TopMargin = elem.h;
968  elem.BottomMargin = 0;
969  elem.LeftMargin = elem.w;
970  elem.RightMargin = 0;
971 
972  for( const auto& rxChild : elem.Children )
973  {
974  if( rxChild->x < elem.LeftMargin )
975  elem.LeftMargin = rxChild->x;
976  if( rxChild->y < elem.TopMargin )
977  elem.TopMargin = rxChild->y;
978  if( rxChild->x + rxChild->w > elem.RightMargin )
979  elem.RightMargin = (rxChild->x + rxChild->w);
980  if( rxChild->y + rxChild->h > elem.BottomMargin )
981  elem.BottomMargin = (rxChild->y + rxChild->h);
982  }
983 
984  // transform margins to mm
985  double left_margin = convPx2mm( elem.LeftMargin );
986  double right_margin = convPx2mm( elem.RightMargin );
987  double top_margin = convPx2mm( elem.TopMargin );
988  double bottom_margin = convPx2mm( elem.BottomMargin );
989 
990  // round left/top margin to nearest mm
991  left_margin = rtl_math_round( left_margin, 0, rtl_math_RoundingMode_Floor );
992  top_margin = rtl_math_round( top_margin, 0, rtl_math_RoundingMode_Floor );
993  // round (fuzzy) right/bottom margin to nearest cm
994  right_margin = rtl_math_round( right_margin, right_margin >= 10 ? -1 : 0, rtl_math_RoundingMode_Floor );
995  bottom_margin = rtl_math_round( bottom_margin, bottom_margin >= 10 ? -1 : 0, rtl_math_RoundingMode_Floor );
996 
997  // set reasonable default in case of way too large margins
998  // e.g. no paragraph case
999  if( left_margin > page_width/2.0 - 10 )
1000  left_margin = 10;
1001  if( right_margin > page_width/2.0 - 10 )
1002  right_margin = 10;
1003  if( top_margin > page_height/2.0 - 10 )
1004  top_margin = 10;
1005  if( bottom_margin > page_height/2.0 - 10 )
1006  bottom_margin = 10;
1007 
1008  // catch the weird cases
1009  if( left_margin < 0 )
1010  left_margin = 0;
1011  if( right_margin < 0 )
1012  right_margin = 0;
1013  if( top_margin < 0 )
1014  top_margin = 0;
1015  if( bottom_margin < 0 )
1016  bottom_margin = 0;
1017 
1018  // widely differing margins are unlikely to be correct
1019  if( right_margin > left_margin*1.5 )
1020  right_margin = left_margin;
1021 
1022  elem.LeftMargin = convmm2Px( left_margin );
1023  elem.RightMargin = convmm2Px( right_margin );
1024  elem.TopMargin = convmm2Px( top_margin );
1025  elem.BottomMargin = convmm2Px( bottom_margin );
1026 
1027  // get styles for paragraphs
1028  PropertyMap aPageProps;
1029  PropertyMap aPageLayoutProps;
1030  aPageLayoutProps[ "fo:margin-top" ] = unitMMString( top_margin );
1031  aPageLayoutProps[ "fo:margin-bottom" ] = unitMMString( bottom_margin );
1032  aPageLayoutProps[ "fo:margin-left" ] = unitMMString( left_margin );
1033  aPageLayoutProps[ "fo:margin-right" ] = unitMMString( right_margin );
1034  aPageLayoutProps[ "fo:page-width" ] = unitMMString( page_width );
1035  aPageLayoutProps[ "fo:page-height" ] = unitMMString( page_height );
1036  aPageLayoutProps[ "style:print-orientation" ]= elem.w < elem.h ? OUStringLiteral("portrait") : OUStringLiteral("landscape");
1037  aPageLayoutProps[ "style:writing-mode" ]= "lr-tb";
1038 
1039  StyleContainer::Style aStyle( "style:page-layout", aPageProps);
1040  StyleContainer::Style aSubStyle( "style:page-layout-properties", aPageLayoutProps);
1041  aStyle.SubStyles.push_back(&aSubStyle);
1042  sal_Int32 nPageStyle = m_rStyleContainer.impl_getStyleId( aStyle, false );
1043 
1044  // create master page
1045  OUString aMasterPageLayoutName = m_rStyleContainer.getStyleName( nPageStyle );
1046  aPageProps[ "style:page-layout-name" ] = aMasterPageLayoutName;
1047 
1048  StyleContainer::Style aMPStyle( "style:master-page", aPageProps);
1049 
1050  elem.StyleId = m_rStyleContainer.impl_getStyleId( aMPStyle,false );
1051 
1052  // create styles for children
1053  elem.applyToChildren(*this);
1054 }
1055 
1056 void DrawXmlFinalizer::visit( DocumentElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
1057 {
1058  elem.applyToChildren(*this);
1059 }
1060 
1061 }
1062 
1063 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
css::rendering::ARGBColor LineColor
Definition: pdfihelper.hxx:97
std::unordered_map< OUString, OUString > PropertyMap
Definition: pdfihelper.hxx:45
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:107
static OUString mirrorString(const OUString &i_rInString)
OUString getPercentString(double value)
Definition: pdfihelper.cxx:102
#define PDFI_OUTDEV_RESOLUTION
Definition: pdfihelper.hxx:38
double convmm2Px(double fMM)
Definition: pdfihelper.hxx:61
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:116
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:109
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:98
const GraphicsContext & getGraphicsContext(sal_Int32 nGCId) const
double convPx2mm(double fPix)
Definition: pdfihelper.hxx:54
std::vector< double > DashArray
Definition: pdfihelper.hxx:105
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:150
int i
bool decompose(B2DTuple &rScale, B2DTuple &rTranslate, double &rRotate, double &rShearX) const
double GetAverageTransformationScale(const basegfx::B2DHomMatrix &matrix)
Definition: pdfihelper.cxx:31
basegfx::B2DHomMatrix Transformation
Definition: pdfihelper.hxx:108
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:39
const css::uno::Reference< css::i18n::XCharacterClassification > & GetCharacterClassification()
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:68
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:164
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)
tuple next
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