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
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
29 #include <basegfx/polygon/b2dpolypolygontools.hxx>
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
GetBreakIterator()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
GetCharacterClassification()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
visit(HyperlinkElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator &)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 }
86 m_rEmitContext.rEmitter.endTag( pType );
87 }
88
visit(TextElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator &)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" ) ] =
101 m_rEmitContext.rStyles.getStyleName( elem.StyleId );
102 }
103
104 OUString str(elem.Text.getStr());
105
106 // Check for RTL
107 bool isRTL = false;
108 Reference< i18n::XCharacterClassification > xCC( GetCharacterClassification() );
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
visit(ParagraphElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator &)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
fillFrameProps(DrawElement & rElem,PropertyMap & rProps,const EmitContext & rEmitContext,bool bWasTransformed)183 void DrawXmlEmitter::fillFrameProps( DrawElement& rElem,
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
209 basegfx::B2DHomMatrix mat(rGC.Transformation);
210
211 if (rElem.MirrorVertical)
212 {
213 basegfx::B2DHomMatrix mat2;
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
visit(FrameElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator &)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
visit(PolyPolyElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator &)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 {
281 basegfx::B2DPoint point;
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
visit(ImageElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator &)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() );
337 m_rEmitContext.rImages.writeBase64EncodedStream( elem.Image, m_rEmitContext);
338 m_rEmitContext.rEmitter.endTag( "office:binary-data" );
339 m_rEmitContext.rEmitter.endTag( "draw:image" );
340 }
341
visit(PageElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator &)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
349 if( m_rEmitContext.xStatusIndicator.is() )
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
visit(DocumentElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator &)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
visit(HyperlinkElement &,const std::list<std::unique_ptr<Element>>::const_iterator &)380 void DrawXmlOptimizer::visit( HyperlinkElement&, const std::list< std::unique_ptr<Element> >::const_iterator& )
381 {
382 }
383
visit(TextElement &,const std::list<std::unique_ptr<Element>>::const_iterator &)384 void DrawXmlOptimizer::visit( TextElement&, const std::list< std::unique_ptr<Element> >::const_iterator&)
385 {
386 }
387
visit(FrameElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator &)388 void DrawXmlOptimizer::visit( FrameElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
389 {
390 elem.applyToChildren(*this);
391 }
392
visit(ImageElement &,const std::list<std::unique_ptr<Element>>::const_iterator &)393 void DrawXmlOptimizer::visit( ImageElement&, const std::list< std::unique_ptr<Element> >::const_iterator& )
394 {
395 }
396
visit(PolyPolyElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator & elemIt)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 =
420 m_rProcessor.getGraphicsContext( pNext->GCId );
421 const GraphicsContext& rThisGC =
422 m_rProcessor.getGraphicsContext( elem.GCId );
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
visit(ParagraphElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator &)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
visit(PageElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator &)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
470 PDFIProcessor::sortElements( &elem );
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
isSpaces(TextElement * pTextElem)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
notTransformed(const GraphicsContext & GC)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
optimizeTextElements(Element & rParent)657 void DrawXmlOptimizer::optimizeTextElements(Element& rParent)
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
visit(DocumentElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator &)739 void DrawXmlOptimizer::visit( DocumentElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator&)
740 {
741 elem.applyToChildren(*this);
742 }
743
744
visit(PolyPolyElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator &)745 void DrawXmlFinalizer::visit( PolyPolyElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
746 {
747 // xxx TODO copied from DrawElement
748 const GraphicsContext& rGC = m_rProcessor.getGraphicsContext(elem.GCId );
749
750 PropertyMap aProps;
751 aProps[ "style:family" ] = "graphic";
752 aProps[ "style:parent-style-name" ] = "standard";
753 // generate standard graphic style if necessary
754 m_rStyleContainer.getStandardStyleId( "graphic" );
755
756 PropertyMap aGCProps;
757 if (elem.Action & PATH_STROKE)
758 {
759 double scale = GetAverageTransformationScale(rGC.Transformation);
760 if (rGC.DashArray.size() < 2)
761 {
762 aGCProps[ "draw:stroke" ] = "solid";
763 }
764 else
765 {
766 PropertyMap props;
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" ] =
772 m_rStyleContainer.getStyleName(
773 m_rStyleContainer.getStyleId(style));
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
visit(HyperlinkElement &,const std::list<std::unique_ptr<Element>>::const_iterator &)808 void DrawXmlFinalizer::visit( HyperlinkElement&, const std::list< std::unique_ptr<Element> >::const_iterator& )
809 {
810 }
811
SetFontsizeProperties(PropertyMap & props,double fontSize)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
visit(TextElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator &)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
863 const GraphicsContext& rGC = m_rProcessor.getGraphicsContext( elem.GCId );
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
visit(ParagraphElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator &)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
visit(FrameElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator &)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
914 m_rStyleContainer.getStandardStyleId( "graphic" );
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);
948 elem.TextStyleId = m_rStyleContainer.getStyleId(style2);
949 }
950
951 elem.applyToChildren(*this);
952 }
953
visit(ImageElement &,const std::list<std::unique_ptr<Element>>::const_iterator &)954 void DrawXmlFinalizer::visit( ImageElement&, const std::list< std::unique_ptr<Element> >::const_iterator& )
955 {
956 }
957
visit(PageElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator &)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 StyleContainer::Style aHeaderStyle( "style:header", PropertyMap() );
1051 StyleContainer::Style aFooterStyle( "style:footer", PropertyMap() );
1052
1053 elem.StyleId = m_rStyleContainer.impl_getStyleId( aMPStyle,false );
1054
1055 // create styles for children
1056 elem.applyToChildren(*this);
1057 }
1058
visit(DocumentElement & elem,const std::list<std::unique_ptr<Element>>::const_iterator &)1059 void DrawXmlFinalizer::visit( DocumentElement& elem, const std::list< std::unique_ptr<Element> >::const_iterator& )
1060 {
1061 elem.applyToChildren(*this);
1062 }
1063
1064 }
1065
1066 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
1067