xref: /AOO41X/main/starmath/source/node.cxx (revision 1d1db856e0a594e653d631c8cfb4287578f2904d)
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3  * Licensed to the Apache Software Foundation (ASF) under one
4  * or more contributor license agreements.  See the NOTICE file
5  * distributed with this work for additional information
6  * regarding copyright ownership.  The ASF licenses this file
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8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
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11  *   http://www.apache.org/licenses/LICENSE-2.0
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13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
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16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
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21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_starmath.hxx"
26 
27 #include "node.hxx"
28 #include "rect.hxx"
29 #include "symbol.hxx"
30 #include "smmod.hxx"
31 #include "document.hxx"
32 #include "view.hxx"
33 #include "mathtype.hxx"
34 
35 #include <tools/gen.hxx>
36 #include <tools/fract.hxx>
37 #include <rtl/math.hxx>
38 #include <tools/color.hxx>
39 #include <vcl/metric.hxx>
40 #include <vcl/lineinfo.hxx>
41 #include <vcl/outdev.hxx>
42 #include <sfx2/module.hxx>
43 
44 #include <math.h>
45 #include <float.h>
46 
47 
48 #define APPEND(str,ascii) str.AppendAscii(RTL_CONSTASCII_STRINGPARAM(ascii))
49 
50 // define this to draw rectangles for debugging
51 //#define SM_RECT_DEBUG
52 
53 
54 using ::rtl::OUString;
55 
56 
57 ////////////////////////////////////////
58 // SmTmpDevice
59 // Allows for font and color changes. The original settings will be restored
60 // in the destructor.
61 // It's main purpose is to allow for the "const" in the 'OutputDevice'
62 // argument in the 'Arrange' functions and restore changes made in the 'Draw'
63 // functions.
64 // Usually a MapMode of 1/100th mm will be used.
65 //
66 
67 class SmTmpDevice
68 {
69     OutputDevice  &rOutDev;
70 
71     // disallow use of copy-constructor and assignment-operator
72     SmTmpDevice(const SmTmpDevice &rTmpDev);
73     SmTmpDevice & operator = (const SmTmpDevice &rTmpDev);
74 
75     Color   Impl_GetColor( const Color& rColor );
76 
77 public:
78     SmTmpDevice(OutputDevice &rTheDev, sal_Bool bUseMap100th_mm);
~SmTmpDevice()79     ~SmTmpDevice()  { rOutDev.Pop(); }
80 
81     void SetFont(const Font &rNewFont);
82 
SetLineColor(const Color & rColor)83     void SetLineColor( const Color& rColor )    { rOutDev.SetLineColor( Impl_GetColor(rColor) ); }
SetFillColor(const Color & rColor)84     void SetFillColor( const Color& rColor )    { rOutDev.SetFillColor( Impl_GetColor(rColor) ); }
SetTextColor(const Color & rColor)85     void SetTextColor( const Color& rColor )    { rOutDev.SetTextColor( Impl_GetColor(rColor) ); }
86 
operator OutputDevice&()87     operator OutputDevice & () { return rOutDev; }
88 };
89 
90 
SmTmpDevice(OutputDevice & rTheDev,sal_Bool bUseMap100th_mm)91 SmTmpDevice::SmTmpDevice(OutputDevice &rTheDev, sal_Bool bUseMap100th_mm) :
92     rOutDev(rTheDev)
93 {
94     rOutDev.Push( PUSH_FONT | PUSH_MAPMODE |
95                   PUSH_LINECOLOR | PUSH_FILLCOLOR | PUSH_TEXTCOLOR );
96     if (bUseMap100th_mm  &&  MAP_100TH_MM != rOutDev.GetMapMode().GetMapUnit())
97     {
98         DBG_ERROR( "incorrect MapMode?" );
99         rOutDev.SetMapMode( MAP_100TH_MM );     //Immer fuer 100% fomatieren
100     }
101 }
102 
103 
Impl_GetColor(const Color & rColor)104 Color SmTmpDevice::Impl_GetColor( const Color& rColor )
105 {
106     ColorData nNewCol = rColor.GetColor();
107     if (COL_AUTO == nNewCol)
108     {
109         if (OUTDEV_PRINTER == rOutDev.GetOutDevType())
110             nNewCol = COL_BLACK;
111         else
112         {
113             Color aBgCol( rOutDev.GetBackground().GetColor() );
114             if (OUTDEV_WINDOW == rOutDev.GetOutDevType())
115                 aBgCol = ((Window &) rOutDev).GetDisplayBackground().GetColor();
116 
117             nNewCol = SM_MOD()->GetColorConfig().GetColorValue(svtools::FONTCOLOR).nColor;
118 
119             Color aTmpColor( nNewCol );
120             if (aBgCol.IsDark() && aTmpColor.IsDark())
121                 nNewCol = COL_WHITE;
122             else if (aBgCol.IsBright() && aTmpColor.IsBright())
123                 nNewCol = COL_BLACK;
124         }
125     }
126     return Color( nNewCol );
127 }
128 
129 
SetFont(const Font & rNewFont)130 void SmTmpDevice::SetFont(const Font &rNewFont)
131 {
132     rOutDev.SetFont( rNewFont );
133     rOutDev.SetTextColor( Impl_GetColor( rNewFont.GetColor() ) );
134 }
135 
136 
137 ///////////////////////////////////////////////////////////////////////////
138 
139 
SmNode(SmNodeType eNodeType,const SmToken & rNodeToken)140 SmNode::SmNode(SmNodeType eNodeType, const SmToken &rNodeToken)
141 {
142     eType      = eNodeType;
143     eScaleMode = SCALE_NONE;
144     aNodeToken = rNodeToken;
145     nAccIndex  = -1;
146 }
147 
148 
~SmNode()149 SmNode::~SmNode()
150 {
151 }
152 
153 
IsVisible() const154 sal_Bool SmNode::IsVisible() const
155 {
156     return sal_False;
157 }
158 
159 
GetNumSubNodes() const160 sal_uInt16 SmNode::GetNumSubNodes() const
161 {
162     return 0;
163 }
164 
165 
GetSubNode(sal_uInt16)166 SmNode * SmNode::GetSubNode(sal_uInt16 /*nIndex*/)
167 {
168     return NULL;
169 }
170 
171 
GetLeftMost()172 SmNode * SmNode::GetLeftMost()
173     //  returns leftmost node of current subtree.
174     //! (this assumes the one with index 0 is always the leftmost subnode
175     //! for the current node).
176 {
177     SmNode *pNode = GetNumSubNodes() > 0 ?
178                         GetSubNode(0) : NULL;
179 
180     return pNode ? pNode->GetLeftMost() : this;
181 }
182 
183 
SetPhantom(sal_Bool bIsPhantomP)184 void SmNode::SetPhantom(sal_Bool bIsPhantomP)
185 {
186     if (! (Flags() & FLG_VISIBLE))
187         bIsPhantom = bIsPhantomP;
188 
189     SmNode *pNode;
190     sal_uInt16  nSize = GetNumSubNodes();
191     for (sal_uInt16 i = 0; i < nSize; i++)
192         if (NULL != (pNode = GetSubNode(i)))
193             pNode->SetPhantom(bIsPhantom);
194 }
195 
196 
SetColor(const Color & rColor)197 void SmNode::SetColor(const Color& rColor)
198 {
199     if (! (Flags() & FLG_COLOR))
200         GetFont().SetColor(rColor);
201 
202     SmNode *pNode;
203     sal_uInt16  nSize = GetNumSubNodes();
204     for (sal_uInt16 i = 0; i < nSize; i++)
205         if (NULL != (pNode = GetSubNode(i)))
206             pNode->SetColor(rColor);
207 }
208 
209 
SetAttribut(sal_uInt16 nAttrib)210 void SmNode::SetAttribut(sal_uInt16 nAttrib)
211 {
212     if (
213         (nAttrib == ATTR_BOLD && !(Flags() & FLG_BOLD)) ||
214         (nAttrib == ATTR_ITALIC && !(Flags() & FLG_ITALIC))
215        )
216     {
217         nAttributes |= nAttrib;
218     }
219 
220     SmNode *pNode;
221     sal_uInt16 nSize = GetNumSubNodes();
222     for (sal_uInt16 i = 0; i < nSize; i++)
223         if (NULL != (pNode = GetSubNode(i)))
224             pNode->SetAttribut(nAttrib);
225 }
226 
227 
ClearAttribut(sal_uInt16 nAttrib)228 void SmNode::ClearAttribut(sal_uInt16 nAttrib)
229 {
230     if (
231         (nAttrib == ATTR_BOLD && !(Flags() & FLG_BOLD)) ||
232         (nAttrib == ATTR_ITALIC && !(Flags() & FLG_ITALIC))
233        )
234     {
235         nAttributes &= ~nAttrib;
236     }
237 
238     SmNode *pNode;
239     sal_uInt16 nSize = GetNumSubNodes();
240     for (sal_uInt16 i = 0; i < nSize; i++)
241         if (NULL != (pNode = GetSubNode(i)))
242             pNode->ClearAttribut(nAttrib);
243 }
244 
245 
SetFont(const SmFace & rFace)246 void SmNode::SetFont(const SmFace &rFace)
247 {
248     if (!(Flags() & FLG_FONT))
249         GetFont() = rFace;
250 
251     SmNode *pNode;
252     sal_uInt16  nSize = GetNumSubNodes();
253     for (sal_uInt16 i = 0; i < nSize; i++)
254         if (NULL != (pNode = GetSubNode(i)))
255             pNode->SetFont(rFace);
256 }
257 
258 
SetFontSize(const Fraction & rSize,sal_uInt16 nType)259 void SmNode::SetFontSize(const Fraction &rSize, sal_uInt16 nType)
260     //! 'rSize' is in units of pts
261 {
262     Size  aFntSize;
263 
264     if (!(Flags() & FLG_SIZE))
265     {
266         Fraction  aVal (SmPtsTo100th_mm(rSize.GetNumerator()),
267                         rSize.GetDenominator());
268         //long    nHeight = ::rtl::math::round(aVal);
269         long      nHeight = (long)aVal;
270 
271         aFntSize = GetFont().GetSize();
272         aFntSize.Width() = 0;
273         switch(nType)
274         {
275             case FNTSIZ_ABSOLUT:
276                 aFntSize.Height() = nHeight;
277                 break;
278 
279             case FNTSIZ_PLUS:
280                 aFntSize.Height() += nHeight;
281                 break;
282 
283             case FNTSIZ_MINUS:
284                 aFntSize.Height() -= nHeight;
285                 break;
286 
287             case FNTSIZ_MULTIPLY:
288                 aFntSize.Height()   = (long) (Fraction(aFntSize.Height()) * rSize);
289                 break;
290 
291             case FNTSIZ_DIVIDE:
292                 if (rSize != Fraction(0L))
293                     aFntSize.Height()   = (long) (Fraction(aFntSize.Height()) / rSize);
294                 break;
295             default:
296                 break;
297         }
298 
299         // check the requested size against maximum value
300         static int __READONLY_DATA  nMaxVal = SmPtsTo100th_mm(128);
301         if (aFntSize.Height() > nMaxVal)
302             aFntSize.Height() = nMaxVal;
303 
304         GetFont().SetSize(aFntSize);
305     }
306 
307     SmNode *pNode;
308     sal_uInt16  nSize = GetNumSubNodes();
309     for (sal_uInt16 i = 0;  i < nSize;  i++)
310         if (NULL != (pNode = GetSubNode(i)))
311             pNode->SetFontSize(rSize, nType);
312 }
313 
314 
SetSize(const Fraction & rSize)315 void SmNode::SetSize(const Fraction &rSize)
316 {
317     GetFont() *= rSize;
318 
319     SmNode *pNode;
320     sal_uInt16  nSize = GetNumSubNodes();
321     for (sal_uInt16 i = 0;  i < nSize;  i++)
322         if (NULL != (pNode = GetSubNode(i)))
323             pNode->SetSize(rSize);
324 }
325 
326 
SetRectHorAlign(RectHorAlign eHorAlign,sal_Bool bApplyToSubTree)327 void SmNode::SetRectHorAlign(RectHorAlign eHorAlign, sal_Bool bApplyToSubTree )
328 {
329     if (!(Flags() & FLG_HORALIGN))
330         eRectHorAlign = eHorAlign;
331 
332     if (bApplyToSubTree)
333     {
334         SmNode *pNode;
335         sal_uInt16  nSize = GetNumSubNodes();
336         for (sal_uInt16 i = 0; i < nSize; i++)
337             if (NULL != (pNode = GetSubNode(i)))
338                 pNode->SetRectHorAlign(eHorAlign);
339     }
340 }
341 
342 
PrepareAttributes()343 void SmNode::PrepareAttributes()
344 {
345     GetFont().SetWeight((Attributes() & ATTR_BOLD)   ? WEIGHT_BOLD   : WEIGHT_NORMAL);
346     GetFont().SetItalic((Attributes() & ATTR_ITALIC) ? ITALIC_NORMAL : ITALIC_NONE);
347 }
348 
349 
Prepare(const SmFormat & rFormat,const SmDocShell & rDocShell)350 void SmNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell)
351 {
352 #if OSL_DEBUG_LEVEL > 1
353     bIsDebug    = sal_True;
354 #else
355     bIsDebug    = sal_False;
356 #endif
357     bIsPhantom  = sal_False;
358     nFlags      = 0;
359     nAttributes = 0;
360 
361     switch (rFormat.GetHorAlign())
362     {   case AlignLeft:     eRectHorAlign = RHA_LEFT;   break;
363         case AlignCenter:   eRectHorAlign = RHA_CENTER; break;
364         case AlignRight:    eRectHorAlign = RHA_RIGHT;  break;
365     }
366 
367     GetFont() = rFormat.GetFont(FNT_MATH);
368     //GetFont().SetCharSet(RTL_TEXTENCODING_SYMBOL);
369     DBG_ASSERT( GetFont().GetCharSet() == RTL_TEXTENCODING_UNICODE,
370             "unexpected CharSet" );
371     GetFont().SetWeight(WEIGHT_NORMAL);
372     GetFont().SetItalic(ITALIC_NONE);
373 
374     SmNode *pNode;
375     sal_uInt16      nSize = GetNumSubNodes();
376     for (sal_uInt16 i = 0; i < nSize; i++)
377         if (NULL != (pNode = GetSubNode(i)))
378             pNode->Prepare(rFormat, rDocShell);
379 }
380 
381 
382 #if OSL_DEBUG_LEVEL > 1
ToggleDebug() const383 void  SmNode::ToggleDebug() const
384     // toggle 'bIsDebug' in current subtree
385 {
386     SmNode *pThis = (SmNode *) this;
387 
388     pThis->bIsDebug = bIsDebug ? sal_False : sal_True;
389 
390     SmNode *pNode;
391     sal_uInt16      nSize = GetNumSubNodes();
392     for (sal_uInt16 i = 0; i < nSize; i++)
393         if (NULL != (pNode = pThis->GetSubNode(i)))
394             pNode->ToggleDebug();
395 }
396 #endif
397 
398 
Move(const Point & rPosition)399 void SmNode::Move(const Point& rPosition)
400 {
401     if (rPosition.X() == 0  &&  rPosition.Y() == 0)
402         return;
403 
404     SmRect::Move(rPosition);
405 
406     SmNode *pNode;
407     sal_uInt16  nSize = GetNumSubNodes();
408     for (sal_uInt16 i = 0;  i < nSize;  i++)
409         if (NULL != (pNode = GetSubNode(i)))
410             pNode->Move(rPosition);
411 }
412 
413 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)414 void SmNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
415 {
416     SmNode *pNode;
417     sal_uInt16  nSize = GetNumSubNodes();
418     for (sal_uInt16 i = 0;  i < nSize;  i++)
419         if (NULL != (pNode = GetSubNode(i)))
420             pNode->Arrange(rDev, rFormat);
421 }
422 
CreateTextFromNode(String & rText)423 void SmNode::CreateTextFromNode(String &rText)
424 {
425     SmNode *pNode;
426     sal_uInt16  nSize = GetNumSubNodes();
427     if (nSize > 1)
428         rText.Append('{');
429     for (sal_uInt16 i = 0;  i < nSize;  i++)
430         if (NULL != (pNode = GetSubNode(i)))
431             pNode->CreateTextFromNode(rText);
432     if (nSize > 1)
433     {
434         rText.EraseTrailingChars();
435         APPEND(rText,"} ");
436     }
437 }
438 
439 
AdaptToX(const OutputDevice &,sal_uLong)440 void SmNode::AdaptToX(const OutputDevice &/*rDev*/, sal_uLong /*nWidth*/)
441 {
442 }
443 
444 
AdaptToY(const OutputDevice &,sal_uLong)445 void SmNode::AdaptToY(const OutputDevice &/*rDev*/, sal_uLong /*nHeight*/)
446 {
447 }
448 
449 
Draw(OutputDevice & rDev,const Point & rPosition) const450 void SmNode::Draw(OutputDevice &rDev, const Point &rPosition) const
451 {
452     if (IsPhantom())
453         return;
454 
455     const SmNode *pNode;
456     sal_uInt16  nSize = GetNumSubNodes();
457     for (sal_uInt16 i = 0; i < nSize; i++)
458         if (NULL != (pNode = GetSubNode(i)))
459         {   Point  aOffset (pNode->GetTopLeft() - GetTopLeft());
460             pNode->Draw(rDev, rPosition + aOffset);
461         }
462 
463 #ifdef SM_RECT_DEBUG
464     if (!IsDebug())
465         return;
466 
467     int  nRFlags = SM_RECT_CORE | SM_RECT_ITALIC | SM_RECT_LINES | SM_RECT_MID;
468     SmRect::Draw(rDev, rPosition, nRFlags);
469 #endif
470 }
471 
FindTokenAt(sal_uInt16 nRow,sal_uInt16 nCol) const472 const SmNode * SmNode::FindTokenAt(sal_uInt16 nRow, sal_uInt16 nCol) const
473     // returns (first) ** visible ** (sub)node with the tokens text at
474     // position 'nRow', 'nCol'.
475     //! (there should be exactly one such node if any)
476 {
477     if (    IsVisible()
478         &&  nRow == GetToken().nRow
479         &&  nCol >= GetToken().nCol  &&  nCol < GetToken().nCol + GetToken().aText.Len())
480         return this;
481     else
482     {
483         sal_uInt16  nNumSubNodes = GetNumSubNodes();
484         for (sal_uInt16  i = 0;  i < nNumSubNodes;  i++)
485         {   const SmNode *pNode = GetSubNode(i);
486 
487             if (!pNode)
488                 continue;
489 
490             const SmNode *pResult = pNode->FindTokenAt(nRow, nCol);
491             if (pResult)
492                 return pResult;
493         }
494     }
495 
496     return 0;
497 }
498 
499 
FindRectClosestTo(const Point & rPoint) const500 const SmNode * SmNode::FindRectClosestTo(const Point &rPoint) const
501 {
502     long          nDist   = LONG_MAX;
503     const SmNode *pResult = 0;
504 
505     if (IsVisible())
506         pResult = this;
507     else
508     {
509         sal_uInt16  nNumSubNodes = GetNumSubNodes();
510         for (sal_uInt16  i = 0;  i < nNumSubNodes;  i++)
511         {   const SmNode *pNode = GetSubNode(i);
512 
513             if (!pNode)
514                 continue;
515 
516             long  nTmp;
517             const SmNode *pFound = pNode->FindRectClosestTo(rPoint);
518             if (pFound  &&  (nTmp = pFound->OrientedDist(rPoint)) < nDist)
519             {   nDist   = nTmp;
520                 pResult = pFound;
521 
522                 // quit immediately if 'rPoint' is inside the *should not
523                 // overlap with other rectangles* part.
524                 // This (partly) serves for getting the attributes in eg
525                 // "bar overstrike a".
526                 // ('nDist < 0' is used as *quick shot* to avoid evaluation of
527                 // the following expression, where the result is already determined)
528                 if (nDist < 0  &&  pFound->IsInsideRect(rPoint))
529                     break;
530             }
531         }
532     }
533 
534     return pResult;
535 }
536 
GetAccessibleText(String &) const537 void SmNode::GetAccessibleText( String &/*rText*/ ) const
538 {
539     DBG_ERROR( "SmNode: GetAccessibleText not overloaded" );
540 }
541 
FindNodeWithAccessibleIndex(xub_StrLen nAccIdx) const542 const SmNode * SmNode::FindNodeWithAccessibleIndex(xub_StrLen nAccIdx) const
543 {
544     const SmNode *pResult = 0;
545 
546     sal_Int32 nIdx = GetAccessibleIndex();
547     String aTxt;
548     if (nIdx >= 0)
549         GetAccessibleText( aTxt );  // get text if used in following 'if' statement
550 
551     if (nIdx >= 0
552         &&  nIdx <= nAccIdx  &&  nAccIdx < nIdx + aTxt.Len())
553         pResult = this;
554     else
555     {
556         sal_uInt16  nNumSubNodes = GetNumSubNodes();
557         for (sal_uInt16  i = 0;  i < nNumSubNodes;  i++)
558         {
559             const SmNode *pNode = GetSubNode(i);
560             if (!pNode)
561                 continue;
562 
563             pResult = pNode->FindNodeWithAccessibleIndex(nAccIdx);
564             if (pResult)
565                 return pResult;
566         }
567     }
568 
569     return pResult;
570 }
571 
572 
GetFormulaBaseline() const573 long SmNode::GetFormulaBaseline() const
574 {
575     DBG_ASSERT( 0, "This dummy implementation should not have been called." );
576     return 0;
577 }
578 
579 ///////////////////////////////////////////////////////////////////////////
580 
SmStructureNode(const SmStructureNode & rNode)581 SmStructureNode::SmStructureNode( const SmStructureNode &rNode ) :
582     SmNode( rNode.GetType(), rNode.GetToken() )
583 {
584     sal_uLong i;
585     for (i = 0;  i < aSubNodes.size();  i++)
586         delete aSubNodes[i];
587     aSubNodes.resize(0);
588 
589     sal_uLong nSize = rNode.aSubNodes.size();
590     aSubNodes.resize( nSize );
591     for (i = 0;  i < nSize;  ++i)
592     {
593         SmNode *pNode = rNode.aSubNodes[i];
594         aSubNodes[i] = pNode ? new SmNode( *pNode ) : 0;
595     }
596 }
597 
598 
~SmStructureNode()599 SmStructureNode::~SmStructureNode()
600 {
601     SmNode *pNode;
602 
603     for (sal_uInt16 i = 0;  i < GetNumSubNodes();  i++)
604         if (NULL != (pNode = GetSubNode(i)))
605             delete pNode;
606 }
607 
608 
operator =(const SmStructureNode & rNode)609 SmStructureNode & SmStructureNode::operator = ( const SmStructureNode &rNode )
610 {
611     SmNode::operator = ( rNode );
612 
613     sal_uLong i;
614     for (i = 0;  i < aSubNodes.size();  i++)
615         delete aSubNodes[i];
616     aSubNodes.resize(0);
617 
618     sal_uLong nSize = rNode.aSubNodes.size();
619     aSubNodes.resize( nSize );
620     for (i = 0;  i < nSize;  ++i)
621     {
622         SmNode *pNode = rNode.aSubNodes[i];
623         aSubNodes[i] = pNode ? new SmNode( *pNode ) : 0;
624     }
625 
626     return *this;
627 }
628 
629 
SetSubNodes(SmNode * pFirst,SmNode * pSecond,SmNode * pThird)630 void SmStructureNode::SetSubNodes(SmNode *pFirst, SmNode *pSecond, SmNode *pThird)
631 {
632     size_t nSize = pThird ? 3 : (pSecond ? 2 : (pFirst ? 1 : 0));
633     aSubNodes.resize( nSize );
634     if (pFirst)
635         aSubNodes[0] = pFirst;
636     if (pSecond)
637         aSubNodes[1] = pSecond;
638     if (pThird)
639         aSubNodes[2] = pThird;
640 }
641 
642 
SetSubNodes(const SmNodeArray & rNodeArray)643 void SmStructureNode::SetSubNodes(const SmNodeArray &rNodeArray)
644 {
645     aSubNodes = rNodeArray;
646 }
647 
648 
IsVisible() const649 sal_Bool SmStructureNode::IsVisible() const
650 {
651     return sal_False;
652 }
653 
654 
GetNumSubNodes() const655 sal_uInt16 SmStructureNode::GetNumSubNodes() const
656 {
657     return (sal_uInt16) aSubNodes.size();
658 }
659 
660 
GetSubNode(sal_uInt16 nIndex)661 SmNode * SmStructureNode::GetSubNode(sal_uInt16 nIndex)
662 {
663     return aSubNodes[nIndex];
664 }
665 
666 
GetAccessibleText(String & rText) const667 void SmStructureNode::GetAccessibleText( String &rText ) const
668 {
669     sal_uInt16 nNodes = GetNumSubNodes();
670     for (sal_uInt16 i = 0;  i < nNodes;  ++i)
671     {
672         const SmNode *pNode = ((SmStructureNode *) this)->GetSubNode(i);
673         if (pNode)
674         {
675             if (pNode->IsVisible())
676                 ((SmStructureNode *) pNode)->nAccIndex = rText.Len();
677             pNode->GetAccessibleText( rText );
678 //            if (rText.Len()  &&  ' ' != rText.GetChar( rText.Len() - 1 ))
679 //                rText += String::CreateFromAscii( " " );
680         }
681     }
682 }
683 
684 ///////////////////////////////////////////////////////////////////////////
685 
686 
IsVisible() const687 sal_Bool SmVisibleNode::IsVisible() const
688 {
689     return sal_True;
690 }
691 
692 
GetNumSubNodes() const693 sal_uInt16 SmVisibleNode::GetNumSubNodes() const
694 {
695     return 0;
696 }
697 
698 
GetSubNode(sal_uInt16)699 SmNode * SmVisibleNode::GetSubNode(sal_uInt16 /*nIndex*/)
700 {
701     return NULL;
702 }
703 
704 
705 ///////////////////////////////////////////////////////////////////////////
706 
GetAccessibleText(String & rText) const707 void SmGraphicNode::GetAccessibleText( String &rText ) const
708 {
709     rText += GetToken().aText;
710 }
711 
712 ///////////////////////////////////////////////////////////////////////////
713 
714 
CreateTextFromNode(String & rText)715 void SmExpressionNode::CreateTextFromNode(String &rText)
716 {
717     SmNode *pNode;
718     sal_uInt16  nSize = GetNumSubNodes();
719     if (nSize > 1)
720         rText.Append('{');
721     for (sal_uInt16 i = 0;  i < nSize;  i++)
722         if (NULL != (pNode = GetSubNode(i)))
723         {
724             pNode->CreateTextFromNode(rText);
725             //Just a bit of foo to make unary +asd -asd +-asd -+asd look nice
726             if (pNode->GetType() == NMATH)
727                 if ((nSize != 2) || ((rText.GetChar(rText.Len()-1) != '+') &&
728                     (rText.GetChar(rText.Len()-1) != '-')))
729                     rText.Append(' ');
730         }
731 
732     if (nSize > 1)
733     {
734         rText.EraseTrailingChars();
735         APPEND(rText,"} ");
736     }
737 }
738 
739 
740 ///////////////////////////////////////////////////////////////////////////
741 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)742 void SmTableNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
743     // arranges all subnodes in one column
744 {
745     Point rPosition;
746 
747     SmNode *pNode;
748     sal_uInt16  nSize   = GetNumSubNodes();
749 
750     // make distance depend on font size
751     long  nDist = +(rFormat.GetDistance(DIS_VERTICAL)
752                     * GetFont().GetSize().Height()) / 100L;
753 
754     if (nSize < 1)
755         return;
756 
757     // arrange subnodes and get maximum width of them
758     long  nMaxWidth = 0,
759           nTmp;
760     sal_uInt16 i;
761     for (i = 0; i < nSize;  i++)
762         if (NULL != (pNode = GetSubNode(i)))
763         {   pNode->Arrange(rDev, rFormat);
764             if ((nTmp = pNode->GetItalicWidth()) > nMaxWidth)
765                 nMaxWidth = nTmp;
766         }
767 
768     Point  aPos;
769     SmRect::operator = (SmRect(nMaxWidth, 1));
770     for (i = 0;  i < nSize;  i++)
771     {   if (NULL != (pNode = GetSubNode(i)))
772         {   const SmRect &rNodeRect = pNode->GetRect();
773             const SmNode *pCoNode   = pNode->GetLeftMost();
774             //SmTokenType   eType    = pCoNode->GetToken().eType;
775             RectHorAlign  eHorAlign = pCoNode->GetRectHorAlign();
776 
777             aPos = rNodeRect.AlignTo(*this, RP_BOTTOM,
778                         eHorAlign, RVA_BASELINE);
779             if (i)
780                 aPos.Y() += nDist;
781             pNode->MoveTo(aPos);
782             ExtendBy(rNodeRect, nSize > 1 ? RCP_NONE : RCP_ARG);
783         }
784     }
785     // --> 4.7.2010 #i972#
786     if (HasBaseline())
787         nFormulaBaseline = GetBaseline();
788     else
789     {
790         SmTmpDevice  aTmpDev ((OutputDevice &) rDev, sal_True);
791         aTmpDev.SetFont(GetFont());
792 
793         SmRect aRect = (SmRect(aTmpDev, &rFormat, C2S("a"),
794                                GetFont().GetBorderWidth()));
795         nFormulaBaseline = GetAlignM();
796         // move from middle position by constant - distance
797         // between middle and baseline for single letter
798         nFormulaBaseline += aRect.GetBaseline() - aRect.GetAlignM();
799     }
800     // <--
801 }
802 
803 
GetLeftMost()804 SmNode * SmTableNode::GetLeftMost()
805 {
806     return this;
807 }
808 
809 
GetFormulaBaseline() const810 long SmTableNode::GetFormulaBaseline() const
811 {
812     return nFormulaBaseline;
813 }
814 
815 
816 /**************************************************************************/
817 
818 
Prepare(const SmFormat & rFormat,const SmDocShell & rDocShell)819 void SmLineNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell)
820 {
821     SmNode::Prepare(rFormat, rDocShell);
822 
823     //! wir verwenden hier den 'FNT_VARIABLE' Font, da er vom Ascent und Descent
824     //! ia besser zum Rest der Formel passt als der 'FNT_MATH' Font.
825     GetFont() = rFormat.GetFont(FNT_VARIABLE);
826     Flags() |= FLG_FONT;
827 }
828 
829 
830 /**************************************************************************/
831 
832 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)833 void SmLineNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
834     // arranges all subnodes in one row with some extra space between
835 {
836     SmNode *pNode;
837     sal_uInt16  nSize = GetNumSubNodes();
838     sal_uInt16 i;
839     for (i = 0; i < nSize;  i++)
840         if (NULL != (pNode = GetSubNode(i)))
841             pNode->Arrange(rDev, rFormat);
842 
843     SmTmpDevice  aTmpDev ((OutputDevice &) rDev, sal_True);
844     aTmpDev.SetFont(GetFont());
845 
846     if (nSize < 1)
847     {
848         // provide an empty rectangle with alignment parameters for the "current"
849         // font (in order to make "a^1 {}_2^3 a_4" work correct, that is, have the
850         // same sub-/supscript positions.)
851         //! be sure to use a character that has explicitly defined HiAttribut
852         //! line in rect.cxx such as 'a' in order to make 'vec a' look same to
853         //! 'vec {a}'.
854         SmRect::operator = (SmRect(aTmpDev, &rFormat, C2S("a"),
855                             GetFont().GetBorderWidth()));
856         // make sure that the rectangle occupies (almost) no space
857         SetWidth(1);
858         SetItalicSpaces(0, 0);
859         return;
860     }
861 
862     // make distance depend on font size
863     long nDist = (rFormat.GetDistance(DIS_HORIZONTAL) * GetFont().GetSize().Height()) / 100L;
864     if (!IsUseExtraSpaces())
865         nDist = 0;
866 
867     Point   aPos;
868     // copy the first node into LineNode and extend by the others
869     if (NULL != (pNode = GetSubNode(0)))
870         SmRect::operator = (pNode->GetRect());
871 
872     for (i = 1;  i < nSize;  i++)
873         if (NULL != (pNode = GetSubNode(i)))
874         {
875             aPos = pNode->AlignTo(*this, RP_RIGHT, RHA_CENTER, RVA_BASELINE);
876 
877             // add horizontal space to the left for each but the first sub node
878             aPos.X() += nDist;
879 
880             pNode->MoveTo(aPos);
881             ExtendBy( *pNode, RCP_XOR );
882         }
883 }
884 
885 
886 /**************************************************************************/
887 
888 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)889 void SmExpressionNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
890     // as 'SmLineNode::Arrange' but keeps alignment of leftmost subnode
891 {
892     SmLineNode::Arrange(rDev, rFormat);
893 
894     //  copy alignment of leftmost subnode if any
895     SmNode *pNode = GetLeftMost();
896     if (pNode)
897         SetRectHorAlign(pNode->GetRectHorAlign(), sal_False);
898 }
899 
900 
901 /**************************************************************************/
902 
903 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)904 void SmUnHorNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
905 {
906     sal_Bool  bIsPostfix = GetToken().eType == TFACT;
907 
908     SmNode *pOper = GetSubNode(bIsPostfix ? 1 : 0),
909            *pBody = GetSubNode(bIsPostfix ? 0 : 1);
910     DBG_ASSERT(pOper, "Sm: NULL pointer");
911     DBG_ASSERT(pBody, "Sm: NULL pointer");
912 
913     pOper->SetSize(Fraction (rFormat.GetRelSize(SIZ_OPERATOR), 100));
914     pOper->Arrange(rDev, rFormat);
915     pBody->Arrange(rDev, rFormat);
916 
917     Point  aPos = pOper->AlignTo(*pBody, bIsPostfix ? RP_RIGHT : RP_LEFT,
918                         RHA_CENTER, RVA_BASELINE);
919     // add a bit space between operator and argument
920     // (worst case -{1 over 2} where - and over have almost no space inbetween)
921     long  nDelta = pOper->GetFont().GetSize().Height() / 20;
922     if (bIsPostfix)
923         aPos.X() += nDelta;
924     else
925         aPos.X() -= nDelta;
926     pOper->MoveTo(aPos);
927 
928     SmRect::operator = (*pBody);
929     long  nOldBot = GetBottom();
930 
931     ExtendBy(*pOper, RCP_XOR);
932 
933     // workaround for Bug 50865: "a^2 a^+2" have different baselines
934     // for exponents (if size of exponent is large enough)
935     SetBottom(nOldBot);
936 }
937 
938 
939 /**************************************************************************/
940 
941 
GetHeightVerOffset(const SmRect & rRect,long & rHeight,long & rVerOffset) const942 void SmRootNode::GetHeightVerOffset(const SmRect &rRect,
943                                     long &rHeight, long &rVerOffset) const
944     // calculate height and vertical offset of root sign suitable for 'rRect'
945 {
946     rVerOffset = (rRect.GetBottom() - rRect.GetAlignB()) / 2;
947     rHeight    = rRect.GetHeight() - rVerOffset;
948 
949     DBG_ASSERT(rHeight    >= 0, "Sm : Ooops...");
950     DBG_ASSERT(rVerOffset >= 0, "Sm : Ooops...");
951 }
952 
953 
GetExtraPos(const SmRect & rRootSymbol,const SmRect & rExtra) const954 Point SmRootNode::GetExtraPos(const SmRect &rRootSymbol,
955                               const SmRect &rExtra) const
956 {
957     const Size &rSymSize = rRootSymbol.GetSize();
958 
959     Point  aPos = rRootSymbol.GetTopLeft()
960             + Point((rSymSize.Width()  * 70) / 100,
961                     (rSymSize.Height() * 52) / 100);
962 
963     // from this calculate topleft edge of 'rExtra'
964     aPos.X() -= rExtra.GetWidth() + rExtra.GetItalicRightSpace();
965     aPos.Y() -= rExtra.GetHeight();
966     // if there's enough space move a bit less to the right
967     // examples: "nroot i a", "nroot j a"
968     // (it looks better if we don't use italic-spaces here)
969     long  nX = rRootSymbol.GetLeft() + (rSymSize.Width() * 30) / 100;
970     if (aPos.X() > nX)
971         aPos.X() = nX;
972 
973     return aPos;
974 }
975 
976 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)977 void SmRootNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
978 {
979     //! pExtra needs to have the smaller index than pRootSym in order to
980     //! not to get the root symbol but the pExtra when clicking on it in the
981     //! GraphicWindow. (That is because of the simplicity of the algorithm
982     //! that finds the node corresponding to a mouseclick in the window.)
983     SmNode *pExtra   = GetSubNode(0),
984            *pRootSym = GetSubNode(1),
985            *pBody    = GetSubNode(2);
986     DBG_ASSERT(pRootSym, "Sm: NULL pointer");
987     DBG_ASSERT(pBody,    "Sm: NULL pointer");
988 
989     pBody->Arrange(rDev, rFormat);
990 
991     long  nHeight,
992           nVerOffset;
993     GetHeightVerOffset(*pBody, nHeight, nVerOffset);
994     nHeight += rFormat.GetDistance(DIS_ROOT)
995                * GetFont().GetSize().Height() / 100L;
996 
997     // font specialist advised to change the width first
998     pRootSym->AdaptToY(rDev, nHeight);
999     pRootSym->AdaptToX(rDev, pBody->GetItalicWidth());
1000 
1001     pRootSym->Arrange(rDev, rFormat);
1002 
1003     Point  aPos = pRootSym->AlignTo(*pBody, RP_LEFT, RHA_CENTER, RVA_BASELINE);
1004     //! overrride calulated vertical position
1005     aPos.Y()  = pRootSym->GetTop() + pBody->GetBottom() - pRootSym->GetBottom();
1006     aPos.Y() -= nVerOffset;
1007     pRootSym->MoveTo(aPos);
1008 
1009     if (pExtra)
1010     {   pExtra->SetSize(Fraction(rFormat.GetRelSize(SIZ_INDEX), 100));
1011         pExtra->Arrange(rDev, rFormat);
1012 
1013         aPos = GetExtraPos(*pRootSym, *pExtra);
1014         pExtra->MoveTo(aPos);
1015     }
1016 
1017     SmRect::operator = (*pBody);
1018     ExtendBy(*pRootSym, RCP_THIS);
1019     if (pExtra)
1020         ExtendBy(*pExtra, RCP_THIS, (sal_Bool) sal_True);
1021 }
1022 
1023 
CreateTextFromNode(String & rText)1024 void SmRootNode::CreateTextFromNode(String &rText)
1025 {
1026     SmNode *pExtra = GetSubNode(0);
1027     if (pExtra)
1028     {
1029         APPEND(rText,"nroot ");
1030         pExtra->CreateTextFromNode(rText);
1031     }
1032     else
1033         APPEND(rText,"sqrt ");
1034     GetSubNode(2)->CreateTextFromNode(rText);
1035 }
1036 
1037 
1038 /**************************************************************************/
1039 
1040 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)1041 void SmBinHorNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
1042 {
1043     SmNode *pLeft  = GetSubNode(0),
1044            *pOper  = GetSubNode(1),
1045            *pRight = GetSubNode(2);
1046     DBG_ASSERT(pLeft  != NULL, "Sm: NULL pointer");
1047     DBG_ASSERT(pOper  != NULL, "Sm: NULL pointer");
1048     DBG_ASSERT(pRight != NULL, "Sm: NULL pointer");
1049 
1050     pOper->SetSize(Fraction (rFormat.GetRelSize(SIZ_OPERATOR), 100));
1051 
1052     pLeft ->Arrange(rDev, rFormat);
1053     pOper ->Arrange(rDev, rFormat);
1054     pRight->Arrange(rDev, rFormat);
1055 
1056     const SmRect &rOpRect = pOper->GetRect();
1057 
1058     long nDist = (rOpRect.GetWidth() *
1059                  rFormat.GetDistance(DIS_HORIZONTAL)) / 100L;
1060 
1061     SmRect::operator = (*pLeft);
1062 
1063     Point aPos;
1064     aPos = pOper->AlignTo(*this, RP_RIGHT, RHA_CENTER, RVA_BASELINE);
1065     aPos.X() += nDist;
1066     pOper->MoveTo(aPos);
1067     ExtendBy(*pOper, RCP_XOR);
1068 
1069     aPos = pRight->AlignTo(*this, RP_RIGHT, RHA_CENTER, RVA_BASELINE);
1070     aPos.X() += nDist;
1071 
1072     pRight->MoveTo(aPos);
1073     ExtendBy(*pRight, RCP_XOR);
1074 }
1075 
1076 
1077 /**************************************************************************/
1078 
1079 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)1080 void SmBinVerNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
1081 {
1082     SmNode *pNum   = GetSubNode(0),
1083            *pLine  = GetSubNode(1),
1084            *pDenom = GetSubNode(2);
1085     DBG_ASSERT(pNum,   "Sm : NULL pointer");
1086     DBG_ASSERT(pLine,  "Sm : NULL pointer");
1087     DBG_ASSERT(pDenom, "Sm : NULL pointer");
1088 
1089     sal_Bool  bIsTextmode = rFormat.IsTextmode();
1090     if (bIsTextmode)
1091     {
1092         Fraction  aFraction(rFormat.GetRelSize(SIZ_INDEX), 100);
1093         pNum  ->SetSize(aFraction);
1094         pLine ->SetSize(aFraction);
1095         pDenom->SetSize(aFraction);
1096     }
1097 
1098     pNum  ->Arrange(rDev, rFormat);
1099     pDenom->Arrange(rDev, rFormat);
1100 
1101     long  nFontHeight = GetFont().GetSize().Height(),
1102           nExtLen     = nFontHeight * rFormat.GetDistance(DIS_FRACTION) / 100L,
1103           nThick      = nFontHeight * rFormat.GetDistance(DIS_STROKEWIDTH) / 100L,
1104           nWidth      = Max(pNum->GetItalicWidth(), pDenom->GetItalicWidth()),
1105           nNumDist    = bIsTextmode ? 0 :
1106                             nFontHeight * rFormat.GetDistance(DIS_NUMERATOR)   / 100L,
1107           nDenomDist  = bIsTextmode ? 0 :
1108                             nFontHeight * rFormat.GetDistance(DIS_DENOMINATOR) / 100L;
1109 
1110     // font specialist advised to change the width first
1111     pLine->AdaptToY(rDev, nThick);
1112     pLine->AdaptToX(rDev, nWidth + 2 * nExtLen);
1113     pLine->Arrange(rDev, rFormat);
1114 
1115     // get horizontal alignment for numerator
1116     const SmNode *pLM       = pNum->GetLeftMost();
1117     RectHorAlign  eHorAlign = pLM->GetRectHorAlign();
1118 
1119     // move numerator to its position
1120     Point  aPos = pNum->AlignTo(*pLine, RP_TOP, eHorAlign, RVA_BASELINE);
1121     aPos.Y() -= nNumDist;
1122     pNum->MoveTo(aPos);
1123 
1124     // get horizontal alignment for denominator
1125     pLM       = pDenom->GetLeftMost();
1126     eHorAlign = pLM->GetRectHorAlign();
1127 
1128     // move denominator to its position
1129     aPos = pDenom->AlignTo(*pLine, RP_BOTTOM, eHorAlign, RVA_BASELINE);
1130     aPos.Y() += nDenomDist;
1131     pDenom->MoveTo(aPos);
1132 
1133     SmRect::operator = (*pNum);
1134     ExtendBy(*pDenom, RCP_NONE).ExtendBy(*pLine, RCP_NONE, pLine->GetCenterY());
1135 }
1136 
CreateTextFromNode(String & rText)1137 void SmBinVerNode::CreateTextFromNode(String &rText)
1138 {
1139     SmNode *pNum   = GetSubNode(0),
1140     //      *pLine  = GetSubNode(1),
1141            *pDenom = GetSubNode(2);
1142     pNum->CreateTextFromNode(rText);
1143     APPEND(rText,"over ");
1144     pDenom->CreateTextFromNode(rText);
1145 }
1146 
1147 
GetLeftMost()1148 SmNode * SmBinVerNode::GetLeftMost()
1149 {
1150     return this;
1151 }
1152 
1153 
1154 /**************************************************************************/
1155 
1156 
Det(const Point & rHeading1,const Point & rHeading2)1157 double Det(const Point &rHeading1, const Point &rHeading2)
1158     // gibt den Wert der durch die beiden Punkte gebildeten Determinante
1159     // zurueck
1160 {
1161     return rHeading1.X() * rHeading2.Y() - rHeading1.Y() * rHeading2.X();
1162 }
1163 
1164 
IsPointInLine(const Point & rPoint1,const Point & rPoint2,const Point & rHeading2)1165 sal_Bool IsPointInLine(const Point &rPoint1,
1166                    const Point &rPoint2, const Point &rHeading2)
1167     // ergibt sal_True genau dann, wenn der Punkt 'rPoint1' zu der Gerade gehoert die
1168     // durch den Punkt 'rPoint2' geht und den Richtungsvektor 'rHeading2' hat
1169 {
1170     DBG_ASSERT(rHeading2 != Point(), "Sm : 0 vector");
1171 
1172     sal_Bool bRes = sal_False;
1173     const double eps = 5.0 * DBL_EPSILON;
1174 
1175     double fLambda;
1176     if (labs(rHeading2.X()) > labs(rHeading2.Y()))
1177     {
1178         fLambda = (rPoint1.X() - rPoint2.X()) / (double) rHeading2.X();
1179         bRes = fabs(rPoint1.Y() - (rPoint2.Y() + fLambda * rHeading2.Y())) < eps;
1180     }
1181     else
1182     {
1183         fLambda = (rPoint1.Y() - rPoint2.Y()) / (double) rHeading2.Y();
1184         bRes = fabs(rPoint1.X() - (rPoint2.X() + fLambda * rHeading2.X())) < eps;
1185     }
1186 
1187     return bRes;
1188 }
1189 
1190 
GetLineIntersectionPoint(Point & rResult,const Point & rPoint1,const Point & rHeading1,const Point & rPoint2,const Point & rHeading2)1191 sal_uInt16 GetLineIntersectionPoint(Point &rResult,
1192                                 const Point& rPoint1, const Point &rHeading1,
1193                                 const Point& rPoint2, const Point &rHeading2)
1194 {
1195     DBG_ASSERT(rHeading1 != Point(), "Sm : 0 vector");
1196     DBG_ASSERT(rHeading2 != Point(), "Sm : 0 vector");
1197 
1198     sal_uInt16 nRes = 1;
1199     const double eps = 5.0 * DBL_EPSILON;
1200 
1201     // sind die Richtumgsvektoren linear abhaengig ?
1202     double  fDet = Det(rHeading1, rHeading2);
1203     if (fabs(fDet) < eps)
1204     {
1205         nRes    = IsPointInLine(rPoint1, rPoint2, rHeading2) ? USHRT_MAX : 0;
1206         rResult = nRes ? rPoint1 : Point();
1207     }
1208     else
1209     {
1210         // hier achten wir nicht auf Rechengenauigkeit
1211         // (das wuerde aufwendiger und lohnt sich hier kaum)
1212         double fLambda = (    (rPoint1.Y() - rPoint2.Y()) * rHeading2.X()
1213                             - (rPoint1.X() - rPoint2.X()) * rHeading2.Y())
1214                          / fDet;
1215         rResult = Point(rPoint1.X() + (long) (fLambda * rHeading1.X()),
1216                         rPoint1.Y() + (long) (fLambda * rHeading1.Y()));
1217     }
1218 
1219     return nRes;
1220 }
1221 
1222 
1223 
SmBinDiagonalNode(const SmToken & rNodeToken)1224 SmBinDiagonalNode::SmBinDiagonalNode(const SmToken &rNodeToken)
1225 :   SmStructureNode(NBINDIAGONAL, rNodeToken)
1226 {
1227     bAscending = sal_False;
1228     SetNumSubNodes(3);
1229 }
1230 
1231 
GetOperPosSize(Point & rPos,Size & rSize,const Point & rDiagPoint,double fAngleDeg) const1232 void SmBinDiagonalNode::GetOperPosSize(Point &rPos, Size &rSize,
1233                         const Point &rDiagPoint, double fAngleDeg) const
1234     // gibt die Position und Groesse fuer den Diagonalstrich zurueck.
1235     // Vor.: das SmRect des Nodes gibt die Begrenzung vor(!), muss also selbst
1236     //      bereits bekannt sein.
1237 
1238 {
1239     const double  fPi   = 3.1415926535897932384626433;
1240     double  fAngleRad   = fAngleDeg / 180.0 * fPi;
1241     long    nRectLeft   = GetItalicLeft(),
1242             nRectRight  = GetItalicRight(),
1243             nRectTop    = GetTop(),
1244             nRectBottom = GetBottom();
1245     Point   aRightHdg     (100, 0),
1246             aDownHdg      (0, 100),
1247             aDiagHdg      ( (long)(100.0 * cos(fAngleRad)),
1248                             (long)(-100.0 * sin(fAngleRad)) );
1249 
1250     long  nLeft, nRight, nTop, nBottom;     // Raender des Rechtecks fuer die
1251                                             // Diagonale
1252     Point aPoint;
1253     if (IsAscending())
1254     {
1255         //
1256         // obere rechte Ecke bestimmen
1257         //
1258         GetLineIntersectionPoint(aPoint,
1259             Point(nRectLeft, nRectTop), aRightHdg,
1260             rDiagPoint, aDiagHdg);
1261         //
1262         // gibt es einen Schnittpunkt mit dem oberen Rand ?
1263         if (aPoint.X() <= nRectRight)
1264         {
1265             nRight = aPoint.X();
1266             nTop   = nRectTop;
1267         }
1268         else
1269         {
1270             // es muss einen Schnittpunkt mit dem rechten Rand geben!
1271             GetLineIntersectionPoint(aPoint,
1272                 Point(nRectRight, nRectTop), aDownHdg,
1273                 rDiagPoint, aDiagHdg);
1274 
1275             nRight = nRectRight;
1276             nTop   = aPoint.Y();
1277         }
1278 
1279         //
1280         // untere linke Ecke bestimmen
1281         //
1282         GetLineIntersectionPoint(aPoint,
1283             Point(nRectLeft, nRectBottom), aRightHdg,
1284             rDiagPoint, aDiagHdg);
1285         //
1286         // gibt es einen Schnittpunkt mit dem unteren Rand ?
1287         if (aPoint.X() >= nRectLeft)
1288         {
1289             nLeft   = aPoint.X();
1290             nBottom = nRectBottom;
1291         }
1292         else
1293         {
1294             // es muss einen Schnittpunkt mit dem linken Rand geben!
1295             GetLineIntersectionPoint(aPoint,
1296                 Point(nRectLeft, nRectTop), aDownHdg,
1297                 rDiagPoint, aDiagHdg);
1298 
1299             nLeft   = nRectLeft;
1300             nBottom = aPoint.Y();
1301         }
1302     }
1303     else
1304     {
1305         //
1306         // obere linke Ecke bestimmen
1307         //
1308         GetLineIntersectionPoint(aPoint,
1309             Point(nRectLeft, nRectTop), aRightHdg,
1310             rDiagPoint, aDiagHdg);
1311         //
1312         // gibt es einen Schnittpunkt mit dem oberen Rand ?
1313         if (aPoint.X() >= nRectLeft)
1314         {
1315             nLeft = aPoint.X();
1316             nTop  = nRectTop;
1317         }
1318         else
1319         {
1320             // es muss einen Schnittpunkt mit dem linken Rand geben!
1321             GetLineIntersectionPoint(aPoint,
1322                 Point(nRectLeft, nRectTop), aDownHdg,
1323                 rDiagPoint, aDiagHdg);
1324 
1325             nLeft = nRectLeft;
1326             nTop  = aPoint.Y();
1327         }
1328 
1329         //
1330         // untere rechte Ecke bestimmen
1331         //
1332         GetLineIntersectionPoint(aPoint,
1333             Point(nRectLeft, nRectBottom), aRightHdg,
1334             rDiagPoint, aDiagHdg);
1335         //
1336         // gibt es einen Schnittpunkt mit dem unteren Rand ?
1337         if (aPoint.X() <= nRectRight)
1338         {
1339             nRight  = aPoint.X();
1340             nBottom = nRectBottom;
1341         }
1342         else
1343         {
1344             // es muss einen Schnittpunkt mit dem rechten Rand geben!
1345             GetLineIntersectionPoint(aPoint,
1346                 Point(nRectRight, nRectTop), aDownHdg,
1347                 rDiagPoint, aDiagHdg);
1348 
1349             nRight  = nRectRight;
1350             nBottom = aPoint.Y();
1351         }
1352     }
1353 
1354     rSize = Size(nRight - nLeft + 1, nBottom - nTop + 1);
1355     rPos.X() = nLeft;
1356     rPos.Y() = nTop;
1357 }
1358 
1359 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)1360 void SmBinDiagonalNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
1361 {
1362     //! die beiden Argumente muessen in den Subnodes vor dem Operator kommen,
1363     //! damit das anklicken im GraphicWindow den FormulaCursor richtig setzt
1364     //! (vgl SmRootNode)
1365     SmNode *pLeft  = GetSubNode(0),
1366            *pRight = GetSubNode(1);
1367     DBG_ASSERT(pLeft, "Sm : NULL pointer");
1368     DBG_ASSERT(pRight, "Sm : NULL pointer");
1369 
1370     DBG_ASSERT(GetSubNode(2)->GetType() == NPOLYLINE, "Sm : falscher Nodetyp");
1371     SmPolyLineNode *pOper = (SmPolyLineNode *) GetSubNode(2);
1372     DBG_ASSERT(pOper, "Sm : NULL pointer");
1373 
1374     //! some routines being called extract some info from the OutputDevice's
1375     //! font (eg the space to be used for borders OR the font name(!!)).
1376     //! Thus the font should reflect the needs and has to be set!
1377     SmTmpDevice  aTmpDev ((OutputDevice &) rDev, sal_True);
1378     aTmpDev.SetFont(GetFont());
1379 
1380     pLeft->Arrange(aTmpDev, rFormat);
1381     pRight->Arrange(aTmpDev, rFormat);
1382 
1383     // implizit die Weite (incl Rand) des Diagonalstrichs ermitteln
1384     pOper->Arrange(aTmpDev, rFormat);
1385 
1386     long nDelta = pOper->GetWidth() * 8 / 10;
1387 
1388     // TopLeft Position vom rechten Argument ermitteln
1389     Point aPos;
1390     aPos.X() = pLeft->GetItalicRight() + nDelta + pRight->GetItalicLeftSpace();
1391     if (IsAscending())
1392         aPos.Y() = pLeft->GetBottom() + nDelta;
1393     else
1394         aPos.Y() = pLeft->GetTop() - nDelta - pRight->GetHeight();
1395 
1396     pRight->MoveTo(aPos);
1397 
1398     // neue Baseline bestimmen
1399     long nTmpBaseline = IsAscending() ? (pLeft->GetBottom() + pRight->GetTop()) / 2
1400                         : (pLeft->GetTop() + pRight->GetBottom()) / 2;
1401     Point  aLogCenter ((pLeft->GetItalicRight() + pRight->GetItalicLeft()) / 2,
1402                        nTmpBaseline);
1403 
1404     SmRect::operator = (*pLeft);
1405     ExtendBy(*pRight, RCP_NONE);
1406 
1407 
1408     // Position und Groesse des Diagonalstrich ermitteln
1409     Size  aTmpSize;
1410     GetOperPosSize(aPos, aTmpSize, aLogCenter, IsAscending() ? 60.0 : -60.0);
1411 
1412     // font specialist advised to change the width first
1413     pOper->AdaptToY(aTmpDev, aTmpSize.Height());
1414     pOper->AdaptToX(aTmpDev, aTmpSize.Width());
1415     // und diese wirksam machen
1416     pOper->Arrange(aTmpDev, rFormat);
1417 
1418     pOper->MoveTo(aPos);
1419 
1420     ExtendBy(*pOper, RCP_NONE, nTmpBaseline);
1421 }
1422 
1423 
1424 /**************************************************************************/
1425 
1426 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)1427 void SmSubSupNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
1428 {
1429     DBG_ASSERT(GetNumSubNodes() == 1 + SUBSUP_NUM_ENTRIES,
1430                "Sm: falsche Anzahl von subnodes");
1431 
1432     SmNode *pBody = GetBody();
1433     DBG_ASSERT(pBody, "Sm: NULL pointer");
1434 
1435     long  nOrigHeight = pBody->GetFont().GetSize().Height();
1436 
1437     pBody->Arrange(rDev, rFormat);
1438 
1439     const SmRect &rBodyRect = pBody->GetRect();
1440     SmRect::operator = (rBodyRect);
1441 
1442     // line that separates sub- and supscript rectangles
1443     long  nDelimLine = SmFromTo(GetAlignB(), GetAlignT(), 0.4);
1444 
1445     Point  aPos;
1446     long   nDelta, nDist;
1447 
1448     // iterate over all possible sub-/supscripts
1449     SmRect  aTmpRect (rBodyRect);
1450     for (int i = 0;  i < SUBSUP_NUM_ENTRIES;  i++)
1451     {   SmSubSup  eSubSup = (SmSubSup) i;   // cast
1452         SmNode *pSubSup = GetSubSup(eSubSup);
1453 
1454         if (!pSubSup)
1455             continue;
1456 
1457         // switch position of limits if we are in textmode
1458         if (rFormat.IsTextmode()  &&  (GetToken().nGroup & TGLIMIT))
1459             switch (eSubSup)
1460             {   case CSUB:  eSubSup = RSUB;     break;
1461                 case CSUP:  eSubSup = RSUP;     break;
1462                 default:
1463                     break;
1464             }
1465 
1466         // prevent sub-/supscripts from diminishing in size
1467         // (as would be in "a_{1_{2_{3_4}}}")
1468         if (GetFont().GetSize().Height() > rFormat.GetBaseSize().Height() / 3)
1469         {
1470             sal_uInt16 nIndex = (eSubSup == CSUB  ||  eSubSup == CSUP) ?
1471                                     SIZ_LIMITS : SIZ_INDEX;
1472             Fraction  aFraction ( rFormat.GetRelSize(nIndex), 100 );
1473             pSubSup->SetSize(aFraction);
1474         }
1475 
1476         pSubSup->Arrange(rDev, rFormat);
1477 
1478         sal_Bool  bIsTextmode = rFormat.IsTextmode();
1479         nDist = 0;
1480 
1481         //! be sure that CSUB, CSUP are handled before the other cases!
1482         switch (eSubSup)
1483         {   case RSUB :
1484             case LSUB :
1485                 if (!bIsTextmode)
1486                     nDist = nOrigHeight
1487                             * rFormat.GetDistance(DIS_SUBSCRIPT) / 100L;
1488                 aPos  = pSubSup->GetRect().AlignTo(aTmpRect,
1489                                 eSubSup == LSUB ? RP_LEFT : RP_RIGHT,
1490                                 RHA_CENTER, RVA_BOTTOM);
1491                 aPos.Y() += nDist;
1492                 nDelta = nDelimLine - aPos.Y();
1493                 if (nDelta > 0)
1494                     aPos.Y() += nDelta;
1495                 break;
1496             case RSUP :
1497             case LSUP :
1498                 if (!bIsTextmode)
1499                     nDist = nOrigHeight
1500                             * rFormat.GetDistance(DIS_SUPERSCRIPT) / 100L;
1501                 aPos  = pSubSup->GetRect().AlignTo(aTmpRect,
1502                                 eSubSup == LSUP ? RP_LEFT : RP_RIGHT,
1503                                 RHA_CENTER, RVA_TOP);
1504                 aPos.Y() -= nDist;
1505                 nDelta = aPos.Y() + pSubSup->GetHeight() - nDelimLine;
1506                 if (nDelta > 0)
1507                     aPos.Y() -= nDelta;
1508                 break;
1509             case CSUB :
1510                 if (!bIsTextmode)
1511                     nDist = nOrigHeight
1512                             * rFormat.GetDistance(DIS_LOWERLIMIT) / 100L;
1513                 aPos = pSubSup->GetRect().AlignTo(rBodyRect, RP_BOTTOM,
1514                                 RHA_CENTER, RVA_BASELINE);
1515                 aPos.Y() += nDist;
1516                 break;
1517             case CSUP :
1518                 if (!bIsTextmode)
1519                     nDist = nOrigHeight
1520                             * rFormat.GetDistance(DIS_UPPERLIMIT) / 100L;
1521                 aPos = pSubSup->GetRect().AlignTo(rBodyRect, RP_TOP,
1522                                 RHA_CENTER, RVA_BASELINE);
1523                 aPos.Y() -= nDist;
1524                 break;
1525             default :
1526                 DBG_ASSERT(sal_False, "Sm: unbekannter Fall");
1527                 break;
1528         }
1529 
1530         pSubSup->MoveTo(aPos);
1531         ExtendBy(*pSubSup, RCP_THIS, (sal_Bool) sal_True);
1532 
1533         // update rectangle to which  RSUB, RSUP, LSUB, LSUP
1534         // will be aligned to
1535         if (eSubSup == CSUB  ||  eSubSup == CSUP)
1536             aTmpRect = *this;
1537     }
1538 }
1539 
CreateTextFromNode(String & rText)1540 void SmSubSupNode::CreateTextFromNode(String &rText)
1541 {
1542     SmNode *pNode;
1543     GetSubNode(0)->CreateTextFromNode(rText);
1544 
1545     if (NULL != (pNode = GetSubNode(LSUB+1)))
1546     {
1547         APPEND(rText,"lsub ");
1548         pNode->CreateTextFromNode(rText);
1549     }
1550     if (NULL != (pNode = GetSubNode(LSUP+1)))
1551     {
1552         APPEND(rText,"lsup ");
1553         pNode->CreateTextFromNode(rText);
1554     }
1555     if (NULL != (pNode = GetSubNode(CSUB+1)))
1556     {
1557         APPEND(rText,"csub ");
1558         pNode->CreateTextFromNode(rText);
1559     }
1560     if (NULL != (pNode = GetSubNode(CSUP+1)))
1561     {
1562         APPEND(rText,"csup ");
1563         pNode->CreateTextFromNode(rText);
1564     }
1565     if (NULL != (pNode = GetSubNode(RSUB+1)))
1566     {
1567         rText.EraseTrailingChars();
1568         rText.Append('_');
1569         pNode->CreateTextFromNode(rText);
1570     }
1571     if (NULL != (pNode = GetSubNode(RSUP+1)))
1572     {
1573         rText.EraseTrailingChars();
1574         rText.Append('^');
1575         pNode->CreateTextFromNode(rText);
1576     }
1577 }
1578 
1579 
1580 /**************************************************************************/
1581 
CreateTextFromNode(String & rText)1582 void SmBraceNode::CreateTextFromNode(String &rText)
1583 {
1584     if (GetScaleMode() == SCALE_HEIGHT)
1585         APPEND(rText,"left ");
1586     {
1587         String aStr;
1588         GetSubNode(0)->CreateTextFromNode(aStr);
1589         aStr.EraseLeadingAndTrailingChars();
1590         aStr.EraseLeadingChars('\\');
1591         if (aStr.Len())
1592         {
1593             if (aStr.EqualsAscii("divides"))
1594                 APPEND(rText,"lline");
1595             else if (aStr.EqualsAscii("parallel"))
1596                 APPEND(rText,"ldline");
1597             else if (aStr.EqualsAscii("<"))
1598                 APPEND(rText,"langle");
1599             else
1600                 rText.Append(aStr);
1601             rText.Append(' ');
1602         }
1603         else
1604             APPEND(rText,"none ");
1605     }
1606     GetSubNode(1)->CreateTextFromNode(rText);
1607     if (GetScaleMode() == SCALE_HEIGHT)
1608         APPEND(rText,"right ");
1609     {
1610         String aStr;
1611         GetSubNode(2)->CreateTextFromNode(aStr);
1612         aStr.EraseLeadingAndTrailingChars();
1613         aStr.EraseLeadingChars('\\');
1614         if (aStr.Len())
1615         {
1616             if (aStr.EqualsAscii("divides"))
1617                 APPEND(rText,"rline");
1618             else if (aStr.EqualsAscii("parallel"))
1619                 APPEND(rText,"rdline");
1620             else if (aStr.EqualsAscii(">"))
1621                 APPEND(rText,"rangle");
1622             else
1623                 rText.Append(aStr);
1624             rText.Append(' ');
1625         }
1626         else
1627             APPEND(rText,"none ");
1628     }
1629     rText.Append(' ');
1630 
1631 }
1632 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)1633 void SmBraceNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
1634 {
1635     SmNode *pLeft  = GetSubNode(0),
1636            *pBody  = GetSubNode(1),
1637            *pRight = GetSubNode(2);
1638     DBG_ASSERT(pLeft,  "Sm: NULL pointer");
1639     DBG_ASSERT(pBody,  "Sm: NULL pointer");
1640     DBG_ASSERT(pRight, "Sm: NULL pointer");
1641 
1642     pBody->Arrange(rDev, rFormat);
1643 
1644     sal_Bool  bIsScaleNormal = rFormat.IsScaleNormalBrackets(),
1645           bScale         = pBody->GetHeight() > 0  &&
1646                            (GetScaleMode() == SCALE_HEIGHT  ||  bIsScaleNormal),
1647           bIsABS         = GetToken().eType == TABS;
1648 
1649     long  nFaceHeight = GetFont().GetSize().Height();
1650 
1651     // Uebergroesse in % ermitteln
1652     sal_uInt16  nPerc = 0;
1653     if (!bIsABS && bScale)
1654     {   // im Fall von Klammern mit Uebergroesse...
1655         sal_uInt16 nIndex = GetScaleMode() == SCALE_HEIGHT ?
1656                             DIS_BRACKETSIZE : DIS_NORMALBRACKETSIZE;
1657         nPerc = rFormat.GetDistance(nIndex);
1658     }
1659 
1660     // ermitteln der Hoehe fuer die Klammern
1661     long  nBraceHeight;
1662     if (bScale)
1663     {
1664         nBraceHeight = pBody->GetType() == NBRACEBODY ?
1665                               ((SmBracebodyNode *) pBody)->GetBodyHeight()
1666                             : pBody->GetHeight();
1667         nBraceHeight += 2 * (nBraceHeight * nPerc / 100L);
1668     }
1669     else
1670         nBraceHeight = nFaceHeight;
1671 
1672     // Abstand zum Argument
1673     nPerc = bIsABS ? 0 : rFormat.GetDistance(DIS_BRACKETSPACE);
1674     long  nDist = nFaceHeight * nPerc / 100L;
1675 
1676     // sofern erwuenscht skalieren der Klammern auf die gewuenschte Groesse
1677     if (bScale)
1678     {
1679         Size  aTmpSize (pLeft->GetFont().GetSize());
1680         DBG_ASSERT(pRight->GetFont().GetSize() == aTmpSize,
1681                     "Sm : unterschiedliche Fontgroessen");
1682         aTmpSize.Width() = Min((long) nBraceHeight * 60L / 100L,
1683                             rFormat.GetBaseSize().Height() * 3L / 2L);
1684         // correction factor since change from StarMath to OpenSymbol font
1685         // because of the different font width in the FontMetric
1686         aTmpSize.Width() *= 182;
1687         aTmpSize.Width() /= 267;
1688 
1689         xub_Unicode cChar = pLeft->GetToken().cMathChar;
1690         if (cChar != MS_LINE  &&  cChar != MS_DLINE)
1691             pLeft ->GetFont().SetSize(aTmpSize);
1692 
1693         cChar = pRight->GetToken().cMathChar;
1694         if (cChar != MS_LINE  &&  cChar != MS_DLINE)
1695             pRight->GetFont().SetSize(aTmpSize);
1696 
1697         pLeft ->AdaptToY(rDev, nBraceHeight);
1698         pRight->AdaptToY(rDev, nBraceHeight);
1699     }
1700 
1701     pLeft ->Arrange(rDev, rFormat);
1702     pRight->Arrange(rDev, rFormat);
1703 
1704     // damit auch "\(a\) - (a) - left ( a right )" vernuenftig aussieht
1705     RectVerAlign  eVerAlign = bScale ? RVA_CENTERY : RVA_BASELINE;
1706 
1707     Point         aPos;
1708     aPos = pLeft->AlignTo(*pBody, RP_LEFT, RHA_CENTER, eVerAlign);
1709     aPos.X() -= nDist;
1710     pLeft->MoveTo(aPos);
1711 
1712     aPos = pRight->AlignTo(*pBody, RP_RIGHT, RHA_CENTER, eVerAlign);
1713     aPos.X() += nDist;
1714     pRight->MoveTo(aPos);
1715 
1716     SmRect::operator = (*pBody);
1717     ExtendBy(*pLeft, RCP_THIS).ExtendBy(*pRight, RCP_THIS);
1718 }
1719 
1720 
1721 /**************************************************************************/
1722 
1723 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)1724 void SmBracebodyNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
1725 {
1726     sal_uInt16  nNumSubNodes = GetNumSubNodes();
1727     if (nNumSubNodes == 0)
1728         return;
1729 
1730     // arrange arguments
1731     sal_uInt16 i;
1732     for (i = 0;  i < nNumSubNodes;  i += 2)
1733         GetSubNode(i)->Arrange(rDev, rFormat);
1734 
1735     // build reference rectangle with necessary info for vertical alignment
1736     SmRect  aRefRect (*GetSubNode(0));
1737     for (i = 0;  i < nNumSubNodes;  i += 2)
1738     {
1739         SmRect aTmpRect (*GetSubNode(i));
1740         Point  aPos = aTmpRect.AlignTo(aRefRect, RP_RIGHT, RHA_CENTER, RVA_BASELINE);
1741         aTmpRect.MoveTo(aPos);
1742         aRefRect.ExtendBy(aTmpRect, RCP_XOR);
1743     }
1744 
1745     nBodyHeight = aRefRect.GetHeight();
1746 
1747     // scale separators to required height and arrange them
1748     sal_Bool bScale  = GetScaleMode() == SCALE_HEIGHT  ||  rFormat.IsScaleNormalBrackets();
1749     long nHeight = bScale ? aRefRect.GetHeight() : GetFont().GetSize().Height();
1750     sal_uInt16 nIndex  = GetScaleMode() == SCALE_HEIGHT ?
1751                         DIS_BRACKETSIZE : DIS_NORMALBRACKETSIZE;
1752     sal_uInt16 nPerc   = rFormat.GetDistance(nIndex);
1753     if (bScale)
1754         nHeight += 2 * (nHeight * nPerc / 100L);
1755     for (i = 1;  i < nNumSubNodes;  i += 2)
1756     {
1757         SmNode *pNode = GetSubNode(i);
1758         pNode->AdaptToY(rDev, nHeight);
1759         pNode->Arrange(rDev, rFormat);
1760     }
1761 
1762     // horizontal distance between argument and brackets or separators
1763     long  nDist = GetFont().GetSize().Height()
1764                   * rFormat.GetDistance(DIS_BRACKETSPACE) / 100L;
1765 
1766     SmNode *pLeft = GetSubNode(0);
1767     SmRect::operator = (*pLeft);
1768     for (i = 1;  i < nNumSubNodes;  i++)
1769     {
1770         sal_Bool          bIsSeparator = i % 2 != 0;
1771         RectVerAlign  eVerAlign    = bIsSeparator ? RVA_CENTERY : RVA_BASELINE;
1772 
1773         SmNode *pRight = GetSubNode(i);
1774         Point  aPosX = pRight->AlignTo(*pLeft,   RP_RIGHT, RHA_CENTER, eVerAlign),
1775                aPosY = pRight->AlignTo(aRefRect, RP_RIGHT, RHA_CENTER, eVerAlign);
1776         aPosX.X() += nDist;
1777 
1778         pRight->MoveTo(Point(aPosX.X(), aPosY.Y()));
1779         ExtendBy(*pRight, bIsSeparator ? RCP_THIS : RCP_XOR);
1780 
1781         pLeft = pRight;
1782     }
1783 }
1784 
1785 
1786 /**************************************************************************/
1787 
1788 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)1789 void SmVerticalBraceNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
1790 {
1791     SmNode *pBody   = GetSubNode(0),
1792            *pBrace  = GetSubNode(1),
1793            *pScript = GetSubNode(2);
1794     DBG_ASSERT(pBody,   "Sm: NULL pointer!");
1795     DBG_ASSERT(pBrace,  "Sm: NULL pointer!");
1796     DBG_ASSERT(pScript, "Sm: NULL pointer!");
1797 
1798     SmTmpDevice  aTmpDev ((OutputDevice &) rDev, sal_True);
1799     aTmpDev.SetFont(GetFont());
1800 
1801     pBody->Arrange(aTmpDev, rFormat);
1802 
1803     // Groesse wie bei Grenzen fuer diesen Teil
1804     pScript->SetSize( Fraction( rFormat.GetRelSize(SIZ_LIMITS), 100 ) );
1805     // etwas hoehere Klammern als normal
1806     pBrace ->SetSize( Fraction(3, 2) );
1807 
1808     long  nItalicWidth = pBody->GetItalicWidth();
1809     if (nItalicWidth > 0)
1810         pBrace->AdaptToX(aTmpDev, nItalicWidth);
1811 
1812     pBrace ->Arrange(aTmpDev, rFormat);
1813     pScript->Arrange(aTmpDev, rFormat);
1814 
1815     // die relativen Position und die Abstaende zueinander bestimmen
1816     RectPos  eRectPos;
1817     long nFontHeight = pBody->GetFont().GetSize().Height();
1818     long nDistBody   = nFontHeight * rFormat.GetDistance(DIS_ORNAMENTSIZE),
1819          nDistScript = nFontHeight;
1820     if (GetToken().eType == TOVERBRACE)
1821     {
1822         eRectPos = RP_TOP;
1823         nDistBody    = - nDistBody;
1824         nDistScript *= - rFormat.GetDistance(DIS_UPPERLIMIT);
1825     }
1826     else // TUNDERBRACE
1827     {
1828         eRectPos = RP_BOTTOM;
1829         nDistScript *= + rFormat.GetDistance(DIS_LOWERLIMIT);
1830     }
1831     nDistBody   /= 100L;
1832     nDistScript /= 100L;
1833 
1834     Point  aPos = pBrace->AlignTo(*pBody, eRectPos, RHA_CENTER, RVA_BASELINE);
1835     aPos.Y() += nDistBody;
1836     pBrace->MoveTo(aPos);
1837 
1838     aPos = pScript->AlignTo(*pBrace, eRectPos, RHA_CENTER, RVA_BASELINE);
1839     aPos.Y() += nDistScript;
1840     pScript->MoveTo(aPos);
1841 
1842     SmRect::operator = (*pBody);
1843     ExtendBy(*pBrace, RCP_THIS).ExtendBy(*pScript, RCP_THIS);
1844 }
1845 
1846 
1847 /**************************************************************************/
1848 
1849 
GetSymbol()1850 SmNode * SmOperNode::GetSymbol()
1851 {
1852     SmNode *pNode = GetSubNode(0);
1853     DBG_ASSERT(pNode, "Sm: NULL pointer!");
1854 
1855     if (pNode->GetType() == NSUBSUP)
1856         pNode = ((SmSubSupNode *) pNode)->GetBody();
1857 
1858     DBG_ASSERT(pNode, "Sm: NULL pointer!");
1859     return pNode;
1860 }
1861 
1862 
CalcSymbolHeight(const SmNode & rSymbol,const SmFormat & rFormat) const1863 long SmOperNode::CalcSymbolHeight(const SmNode &rSymbol,
1864                                   const SmFormat &rFormat) const
1865     // returns the font height to be used for operator-symbol
1866 {
1867     long  nHeight = GetFont().GetSize().Height();
1868 
1869     SmTokenType  eTmpType = GetToken().eType;
1870     if (eTmpType == TLIM  ||  eTmpType == TLIMINF  ||  eTmpType == TLIMSUP)
1871         return nHeight;
1872 
1873     if (!rFormat.IsTextmode())
1874     {
1875         // set minimum size ()
1876         nHeight += (nHeight * 20L) / 100L;
1877 
1878         nHeight += nHeight
1879                    * rFormat.GetDistance(DIS_OPERATORSIZE) / 100L;
1880         nHeight = nHeight * 686L / 845L;
1881     }
1882 
1883     // correct user-defined symbols to match height of sum from used font
1884     if (rSymbol.GetToken().eType == TSPECIAL)
1885         nHeight = nHeight * 845L / 686L;
1886 
1887     return nHeight;
1888 }
1889 
1890 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)1891 void SmOperNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
1892 {
1893     SmNode *pOper = GetSubNode(0);
1894     SmNode *pBody = GetSubNode(1);
1895 
1896     DBG_ASSERT(pOper, "Sm: Subnode fehlt");
1897     DBG_ASSERT(pBody, "Sm: Subnode fehlt");
1898 
1899     SmNode *pSymbol = GetSymbol();
1900     pSymbol->SetSize(Fraction(CalcSymbolHeight(*pSymbol, rFormat),
1901                               pSymbol->GetFont().GetSize().Height()));
1902 
1903     pBody->Arrange(rDev, rFormat);
1904     pOper->Arrange(rDev, rFormat);
1905 
1906     long  nOrigHeight = GetFont().GetSize().Height(),
1907           nDist = nOrigHeight
1908                   * rFormat.GetDistance(DIS_OPERATORSPACE) / 100L;
1909 
1910     Point aPos = pOper->AlignTo(*pBody, RP_LEFT, RHA_CENTER, /*RVA_CENTERY*/RVA_MID);
1911     aPos.X() -= nDist;
1912     pOper->MoveTo(aPos);
1913 
1914     SmRect::operator = (*pBody);
1915     ExtendBy(*pOper, RCP_THIS);
1916 }
1917 
1918 
1919 /**************************************************************************/
1920 
1921 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)1922 void SmAlignNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
1923     // setzt im ganzen subtree (incl aktuellem node) das alignment
1924 {
1925     DBG_ASSERT(GetNumSubNodes() > 0, "Sm: SubNode fehlt");
1926 
1927     SmNode  *pNode = GetSubNode(0);
1928 
1929     RectHorAlign  eHorAlign = RHA_CENTER;
1930     switch (GetToken().eType)
1931     {
1932         case TALIGNL:   eHorAlign = RHA_LEFT;   break;
1933         case TALIGNC:   eHorAlign = RHA_CENTER; break;
1934         case TALIGNR:   eHorAlign = RHA_RIGHT;  break;
1935         default:
1936             break;
1937     }
1938     SetRectHorAlign(eHorAlign);
1939 
1940     pNode->Arrange(rDev, rFormat);
1941 
1942     SmRect::operator = (pNode->GetRect());
1943 }
1944 
1945 
1946 /**************************************************************************/
1947 
1948 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)1949 void SmAttributNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
1950 {
1951     SmNode *pAttr = GetSubNode(0),
1952            *pBody = GetSubNode(1);
1953     DBG_ASSERT(pBody, "Sm: Body fehlt");
1954     DBG_ASSERT(pAttr, "Sm: Attribut fehlt");
1955 
1956     pBody->Arrange(rDev, rFormat);
1957 
1958     if (GetScaleMode() == SCALE_WIDTH)
1959         pAttr->AdaptToX(rDev, pBody->GetItalicWidth());
1960     pAttr->Arrange(rDev, rFormat);
1961 
1962     // get relative position of attribut
1963     RectVerAlign  eVerAlign;
1964     long          nDist = 0;
1965     switch (GetToken().eType)
1966     {   case TUNDERLINE :
1967             eVerAlign = RVA_ATTRIBUT_LO;
1968             break;
1969         case TOVERSTRIKE :
1970             eVerAlign = RVA_ATTRIBUT_MID;
1971             break;
1972         default :
1973             eVerAlign = RVA_ATTRIBUT_HI;
1974             if (pBody->GetType() == NATTRIBUT)
1975                 nDist = GetFont().GetSize().Height()
1976                         * rFormat.GetDistance(DIS_ORNAMENTSPACE) / 100L;
1977     }
1978     Point  aPos = pAttr->AlignTo(*pBody, RP_ATTRIBUT, RHA_CENTER, eVerAlign);
1979     aPos.Y() -= nDist;
1980     pAttr->MoveTo(aPos);
1981 
1982     SmRect::operator = (*pBody);
1983     ExtendBy(*pAttr, RCP_THIS, (sal_Bool) sal_True);
1984 }
1985 
1986 
1987 /**************************************************************************/
1988 
1989 
1990 
1991 
CreateTextFromNode(String & rText)1992 void SmFontNode::CreateTextFromNode(String &rText)
1993 {
1994     switch (GetToken().eType)
1995     {
1996         case TBOLD:
1997             APPEND(rText,"bold ");
1998             break;
1999         case TNBOLD:
2000             APPEND(rText,"nbold ");
2001             break;
2002         case TITALIC:
2003             APPEND(rText,"italic ");
2004             break;
2005         case TNITALIC:
2006             APPEND(rText,"nitalic ");
2007             break;
2008         case TPHANTOM:
2009             APPEND(rText,"phantom ");
2010             break;
2011         case TSIZE:
2012             {
2013                 APPEND(rText,"size ");
2014                 switch (nSizeType)
2015                 {
2016                     case FNTSIZ_PLUS:
2017                         rText.Append('+');
2018                         break;
2019                     case FNTSIZ_MINUS:
2020                         rText.Append('-');
2021                         break;
2022                     case FNTSIZ_MULTIPLY:
2023                         rText.Append('*');
2024                         break;
2025                     case FNTSIZ_DIVIDE:
2026                         rText.Append('/');
2027                         break;
2028                     case FNTSIZ_ABSOLUT:
2029                     default:
2030                         break;
2031                 }
2032                 rText += String( ::rtl::math::doubleToUString(
2033                             static_cast<double>(aFontSize),
2034                             rtl_math_StringFormat_Automatic,
2035                             rtl_math_DecimalPlaces_Max, '.', sal_True));
2036                 rText.Append(' ');
2037             }
2038             break;
2039         case TBLACK:
2040             APPEND(rText,"color black ");
2041             break;
2042         case TWHITE:
2043             APPEND(rText,"color white ");
2044             break;
2045         case TRED:
2046             APPEND(rText,"color red ");
2047             break;
2048         case TGREEN:
2049             APPEND(rText,"color green ");
2050             break;
2051         case TBLUE:
2052             APPEND(rText,"color blue ");
2053             break;
2054         case TCYAN:
2055             APPEND(rText,"color cyan ");
2056             break;
2057         case TMAGENTA:
2058             APPEND(rText,"color magenta ");
2059             break;
2060         case TYELLOW:
2061             APPEND(rText,"color yellow ");
2062             break;
2063         case TSANS:
2064             APPEND(rText,"font sans ");
2065             break;
2066         case TSERIF:
2067             APPEND(rText,"font serif ");
2068             break;
2069         case TFIXED:
2070             APPEND(rText,"font fixed ");
2071             break;
2072         default:
2073             break;
2074     }
2075     GetSubNode(1)->CreateTextFromNode(rText);
2076 }
2077 
2078 
Prepare(const SmFormat & rFormat,const SmDocShell & rDocShell)2079 void SmFontNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell)
2080 {
2081     //! prepare subnodes first
2082     SmNode::Prepare(rFormat, rDocShell);
2083 
2084     int  nFnt = -1;
2085     switch (GetToken().eType)
2086     {
2087         case TFIXED:    nFnt = FNT_FIXED;   break;
2088         case TSANS:     nFnt = FNT_SANS;    break;
2089         case TSERIF:    nFnt = FNT_SERIF;   break;
2090         default:
2091             break;
2092     }
2093     if (nFnt != -1)
2094     {   GetFont() = rFormat.GetFont( sal::static_int_cast< sal_uInt16 >(nFnt) );
2095         SetFont(GetFont());
2096     }
2097 
2098     //! prevent overwrites of this font by 'Arrange' or 'SetFont' calls of
2099     //! other font nodes (those with lower depth in the tree)
2100     Flags() |= FLG_FONT;
2101 }
2102 
2103 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)2104 void SmFontNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
2105 {
2106     SmNode *pNode = GetSubNode(1);
2107     DBG_ASSERT(pNode, "Sm: SubNode fehlt");
2108 
2109     switch (GetToken().eType)
2110     {   case TSIZE :
2111             pNode->SetFontSize(aFontSize, nSizeType);
2112             break;
2113         case TSANS :
2114         case TSERIF :
2115         case TFIXED :
2116             pNode->SetFont(GetFont());
2117             break;
2118         case TUNKNOWN : break;  // no assertion on "font <?> <?>"
2119 
2120         case TPHANTOM : SetPhantom(sal_True);               break;
2121         case TBOLD :    SetAttribut(ATTR_BOLD);         break;
2122         case TITALIC :  SetAttribut(ATTR_ITALIC);       break;
2123         case TNBOLD :   ClearAttribut(ATTR_BOLD);       break;
2124         case TNITALIC : ClearAttribut(ATTR_ITALIC);     break;
2125 
2126         case TBLACK :   SetColor(Color(COL_BLACK));     break;
2127         case TWHITE :   SetColor(Color(COL_WHITE));     break;
2128         case TRED :     SetColor(Color(COL_RED));       break;
2129         case TGREEN :   SetColor(Color(COL_GREEN));     break;
2130         case TBLUE :    SetColor(Color(COL_BLUE));      break;
2131         case TCYAN :    SetColor(Color(COL_CYAN));      break;
2132         case TMAGENTA : SetColor(Color(COL_MAGENTA));   break;
2133         case TYELLOW :  SetColor(Color(COL_YELLOW));    break;
2134 
2135         default:
2136             DBG_ASSERT(sal_False, "Sm: unbekannter Fall");
2137     }
2138 
2139     pNode->Arrange(rDev, rFormat);
2140 
2141     SmRect::operator = (pNode->GetRect());
2142 }
2143 
2144 
SetSizeParameter(const Fraction & rValue,sal_uInt16 Type)2145 void SmFontNode::SetSizeParameter(const Fraction& rValue, sal_uInt16 Type)
2146 {
2147     nSizeType = Type;
2148     aFontSize = rValue;
2149 }
2150 
2151 
2152 /**************************************************************************/
2153 
2154 
SmPolyLineNode(const SmToken & rNodeToken)2155 SmPolyLineNode::SmPolyLineNode(const SmToken &rNodeToken)
2156 :   SmGraphicNode(NPOLYLINE, rNodeToken)
2157 {
2158     aPoly.SetSize(2);
2159     nWidth = 0;
2160 }
2161 
2162 
AdaptToX(const OutputDevice &,sal_uLong nNewWidth)2163 void SmPolyLineNode::AdaptToX(const OutputDevice &/*rDev*/, sal_uLong nNewWidth)
2164 {
2165     aToSize.Width() = nNewWidth;
2166 }
2167 
2168 
AdaptToY(const OutputDevice &,sal_uLong nNewHeight)2169 void SmPolyLineNode::AdaptToY(const OutputDevice &/*rDev*/, sal_uLong nNewHeight)
2170 {
2171     GetFont().FreezeBorderWidth();
2172     aToSize.Height() = nNewHeight;
2173 }
2174 
2175 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)2176 void SmPolyLineNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
2177 {
2178     //! some routines being called extract some info from the OutputDevice's
2179     //! font (eg the space to be used for borders OR the font name(!!)).
2180     //! Thus the font should reflect the needs and has to be set!
2181     SmTmpDevice  aTmpDev ((OutputDevice &) rDev, sal_True);
2182     aTmpDev.SetFont(GetFont());
2183 
2184     long  nBorderwidth = GetFont().GetBorderWidth();
2185 
2186     //
2187     // Das Polygon mit den beiden Endpunkten bilden
2188     //
2189     DBG_ASSERT(aPoly.GetSize() == 2, "Sm : falsche Anzahl von Punkten");
2190     Point  aPointA, aPointB;
2191     if (GetToken().eType == TWIDESLASH)
2192     {
2193         aPointA.X() = nBorderwidth;
2194         aPointA.Y() = aToSize.Height() - nBorderwidth;
2195         aPointB.X() = aToSize.Width() - nBorderwidth;
2196         aPointB.Y() = nBorderwidth;
2197     }
2198     else
2199     {
2200         DBG_ASSERT(GetToken().eType == TWIDEBACKSLASH, "Sm : unerwartetes Token");
2201         aPointA.X() =
2202         aPointA.Y() = nBorderwidth;
2203         aPointB.X() = aToSize.Width() - nBorderwidth;
2204         aPointB.Y() = aToSize.Height() - nBorderwidth;
2205     }
2206     aPoly.SetPoint(aPointA, 0);
2207     aPoly.SetPoint(aPointB, 1);
2208 
2209     long  nThick       = GetFont().GetSize().Height()
2210                             * rFormat.GetDistance(DIS_STROKEWIDTH) / 100L;
2211     nWidth = nThick + 2 * nBorderwidth;
2212 
2213     SmRect::operator = (SmRect(aToSize.Width(), aToSize.Height()));
2214 }
2215 
2216 
Draw(OutputDevice & rDev,const Point & rPosition) const2217 void SmPolyLineNode::Draw(OutputDevice &rDev, const Point &rPosition) const
2218 {
2219     if (IsPhantom())
2220         return;
2221 
2222     long nBorderwidth = GetFont().GetBorderWidth();
2223 
2224     LineInfo  aInfo;
2225     aInfo.SetWidth(nWidth - 2 * nBorderwidth);
2226 
2227     Point aOffset (Point() - aPoly.GetBoundRect().TopLeft()
2228                    + Point(nBorderwidth, nBorderwidth)),
2229           aPos (rPosition + aOffset);
2230     ((Polygon &) aPoly).Move(aPos.X(), aPos.Y());
2231 
2232     SmTmpDevice  aTmpDev ((OutputDevice &) rDev, sal_False);
2233     aTmpDev.SetLineColor( GetFont().GetColor() );
2234 
2235     rDev.DrawPolyLine(aPoly, aInfo);
2236 
2237 #ifdef SM_RECT_DEBUG
2238     if (!IsDebug())
2239         return;
2240 
2241     int  nRFlags = SM_RECT_CORE | SM_RECT_ITALIC | SM_RECT_LINES | SM_RECT_MID;
2242     SmRect::Draw(rDev, rPosition, nRFlags);
2243 #endif
2244 }
2245 
2246 
2247 /**************************************************************************/
2248 
AdaptToX(const OutputDevice &,sal_uLong nWidth)2249 void SmRootSymbolNode::AdaptToX(const OutputDevice &/*rDev*/, sal_uLong nWidth)
2250 {
2251     nBodyWidth = nWidth;
2252 }
2253 
2254 
AdaptToY(const OutputDevice & rDev,sal_uLong nHeight)2255 void SmRootSymbolNode::AdaptToY(const OutputDevice &rDev, sal_uLong nHeight)
2256 {
2257     // etwas extra Laenge damit der horizontale Balken spaeter ueber dem
2258     // Argument positioniert ist
2259     SmMathSymbolNode::AdaptToY(rDev, nHeight + nHeight / 10L);
2260 }
2261 
2262 
Draw(OutputDevice & rDev,const Point & rPosition) const2263 void SmRootSymbolNode::Draw(OutputDevice &rDev, const Point &rPosition) const
2264 {
2265     if (IsPhantom())
2266         return;
2267 
2268     // draw root-sign itself
2269     SmMathSymbolNode::Draw(rDev, rPosition);
2270 
2271     SmTmpDevice  aTmpDev( (OutputDevice &) rDev, sal_True );
2272     aTmpDev.SetFillColor(GetFont().GetColor());
2273     rDev.SetLineColor();
2274     aTmpDev.SetFont( GetFont() );
2275 
2276     // since the width is always unscaled it corresponds ot the _original_
2277     // _unscaled_ font height to be used, we use that to calculate the
2278     // bar height. Thus it is independent of the arguments height.
2279     // ( see display of sqrt QQQ versus sqrt stack{Q#Q#Q#Q} )
2280     long nBarHeight = GetWidth() * 7L / 100L;
2281     long nBarWidth = nBodyWidth + GetBorderWidth();
2282     Point aBarOffset( GetWidth(), +GetBorderWidth() );
2283     Point aBarPos( rPosition + aBarOffset );
2284 
2285     Rectangle  aBar(aBarPos, Size( nBarWidth, nBarHeight) );
2286     //! avoid GROWING AND SHRINKING of drawn rectangle when constantly
2287     //! increasing zoomfactor.
2288     //  This is done by shifting it's output-position to a point that
2289     //  corresponds exactly to a pixel on the output device.
2290     Point  aDrawPos( rDev.PixelToLogic(rDev.LogicToPixel(aBar.TopLeft())) );
2291     //aDrawPos.X() = aBar.Left();     //! don't change X position
2292     aBar.SetPos( aDrawPos );
2293 
2294     rDev.DrawRect( aBar );
2295 
2296 #ifdef SM_RECT_DEBUG
2297     if (!IsDebug())
2298         return;
2299 
2300     int  nRFlags = SM_RECT_CORE | SM_RECT_ITALIC | SM_RECT_LINES | SM_RECT_MID;
2301     SmRect::Draw(rDev, rPosition, nRFlags);
2302 #endif
2303 }
2304 
2305 
2306 /**************************************************************************/
2307 
2308 
AdaptToX(const OutputDevice &,sal_uLong nWidth)2309 void SmRectangleNode::AdaptToX(const OutputDevice &/*rDev*/, sal_uLong nWidth)
2310 {
2311     aToSize.Width() = nWidth;
2312 }
2313 
2314 
AdaptToY(const OutputDevice &,sal_uLong nHeight)2315 void SmRectangleNode::AdaptToY(const OutputDevice &/*rDev*/, sal_uLong nHeight)
2316 {
2317     GetFont().FreezeBorderWidth();
2318     aToSize.Height() = nHeight;
2319 }
2320 
2321 
Arrange(const OutputDevice & rDev,const SmFormat &)2322 void SmRectangleNode::Arrange(const OutputDevice &rDev, const SmFormat &/*rFormat*/)
2323 {
2324     long  nFontHeight = GetFont().GetSize().Height();
2325     long  nWidth  = aToSize.Width(),
2326           nHeight = aToSize.Height();
2327     if (nHeight == 0)
2328         nHeight = nFontHeight / 30;
2329     if (nWidth == 0)
2330         nWidth  = nFontHeight / 3;
2331 
2332     SmTmpDevice  aTmpDev ((OutputDevice &) rDev, sal_True);
2333     aTmpDev.SetFont(GetFont());
2334 
2335     // add some borderspace
2336     sal_uLong  nTmpBorderWidth = GetFont().GetBorderWidth();
2337     //nWidth  += nTmpBorderWidth;
2338     nHeight += 2 * nTmpBorderWidth;
2339 
2340     //! use this method in order to have 'SmRect::HasAlignInfo() == sal_True'
2341     //! and thus having the attribut-fences updated in 'SmRect::ExtendBy'
2342     SmRect::operator = (SmRect(nWidth, nHeight));
2343 }
2344 
2345 
Draw(OutputDevice & rDev,const Point & rPosition) const2346 void SmRectangleNode::Draw(OutputDevice &rDev, const Point &rPosition) const
2347 {
2348     if (IsPhantom())
2349         return;
2350 
2351     SmTmpDevice  aTmpDev ((OutputDevice &) rDev, sal_False);
2352     aTmpDev.SetFillColor(GetFont().GetColor());
2353     rDev.SetLineColor();
2354     aTmpDev.SetFont(GetFont());
2355 
2356     sal_uLong  nTmpBorderWidth = GetFont().GetBorderWidth();
2357 
2358     // get rectangle and remove borderspace
2359     Rectangle  aTmp (AsRectangle() + rPosition - GetTopLeft());
2360     aTmp.Left()   += nTmpBorderWidth;
2361     aTmp.Right()  -= nTmpBorderWidth;
2362     aTmp.Top()    += nTmpBorderWidth;
2363     aTmp.Bottom() -= nTmpBorderWidth;
2364 
2365     DBG_ASSERT(aTmp.GetHeight() > 0  &&  aTmp.GetWidth() > 0,
2366                "Sm: leeres Rechteck");
2367 
2368     //! avoid GROWING AND SHRINKING of drawn rectangle when constantly
2369     //! increasing zoomfactor.
2370     //  This is done by shifting it's output-position to a point that
2371     //  corresponds exactly to a pixel on the output device.
2372     Point  aPos (rDev.PixelToLogic(rDev.LogicToPixel(aTmp.TopLeft())));
2373     aTmp.SetPos(aPos);
2374 
2375     rDev.DrawRect(aTmp);
2376 
2377 #ifdef SM_RECT_DEBUG
2378     if (!IsDebug())
2379         return;
2380 
2381     int  nRFlags = SM_RECT_CORE | SM_RECT_ITALIC | SM_RECT_LINES | SM_RECT_MID;
2382     SmRect::Draw(rDev, rPosition, nRFlags);
2383 #endif
2384 }
2385 
2386 
2387 /**************************************************************************/
2388 
2389 
SmTextNode(SmNodeType eNodeType,const SmToken & rNodeToken,sal_uInt16 nFontDescP)2390 SmTextNode::SmTextNode( SmNodeType eNodeType, const SmToken &rNodeToken, sal_uInt16 nFontDescP ) :
2391     SmVisibleNode(eNodeType, rNodeToken)
2392 {
2393     nFontDesc = nFontDescP;
2394 }
2395 
2396 
SmTextNode(const SmToken & rNodeToken,sal_uInt16 nFontDescP)2397 SmTextNode::SmTextNode( const SmToken &rNodeToken, sal_uInt16 nFontDescP ) :
2398     SmVisibleNode(NTEXT, rNodeToken)
2399 {
2400     nFontDesc = nFontDescP;
2401 }
2402 
2403 
Prepare(const SmFormat & rFormat,const SmDocShell & rDocShell)2404 void SmTextNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell)
2405 {
2406     SmNode::Prepare(rFormat, rDocShell);
2407 
2408     // default setting for horizontal alignment of nodes with TTEXT
2409     // content is as alignl (cannot be done in Arrange since it would
2410     // override the settings made by an SmAlignNode before)
2411     if (TTEXT == GetToken().eType)
2412         SetRectHorAlign( RHA_LEFT );
2413 
2414     aText = GetToken().aText;
2415     GetFont() = rFormat.GetFont(GetFontDesc());
2416 
2417     if (IsItalic( GetFont() ))
2418         Attributes() |= ATTR_ITALIC;
2419     if (IsBold( GetFont() ))
2420         Attributes() |= ATTR_BOLD;
2421 
2422     // special handling for ':' where it is a token on it's own and is likely
2423     // to be used for mathematical notations. (E.g. a:b = 2:3)
2424     // In that case it should not be displayed in italic.
2425     if (GetToken().aText.Len() == 1 && GetToken().aText.GetChar(0) == ':')
2426         Attributes() &= ~ATTR_ITALIC;
2427 };
2428 
2429 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)2430 void SmTextNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
2431 {
2432     PrepareAttributes();
2433 
2434     sal_uInt16  nSizeDesc = GetFontDesc() == FNT_FUNCTION ?
2435                             SIZ_FUNCTION : SIZ_TEXT;
2436     GetFont() *= Fraction (rFormat.GetRelSize(nSizeDesc), 100);
2437 
2438     SmTmpDevice  aTmpDev ((OutputDevice &) rDev, sal_True);
2439     aTmpDev.SetFont(GetFont());
2440 
2441     SmRect::operator = (SmRect(aTmpDev, &rFormat, aText, GetFont().GetBorderWidth()));
2442 }
2443 
CreateTextFromNode(String & rText)2444 void SmTextNode::CreateTextFromNode(String &rText)
2445 {
2446     sal_Bool bQuoted=sal_False;
2447     if (GetToken().eType == TTEXT)
2448     {
2449         rText.Append('\"');
2450         bQuoted=sal_True;
2451     }
2452     else
2453     {
2454         SmParser aParseTest;
2455         SmNode *pTable = aParseTest.Parse(GetToken().aText);
2456         bQuoted=sal_True;
2457         if ( (pTable->GetType() == NTABLE) && (pTable->GetNumSubNodes() == 1) )
2458         {
2459             SmNode *pResult = pTable->GetSubNode(0);
2460             if ( (pResult->GetType() == NLINE) &&
2461                 (pResult->GetNumSubNodes() == 1) )
2462             {
2463                 pResult = pResult->GetSubNode(0);
2464                 if ( (pResult->GetType() == NEXPRESSION) &&
2465                     (pResult->GetNumSubNodes() == 1) )
2466                 {
2467                     pResult = pResult->GetSubNode(0);
2468                     if (pResult->GetType() == NTEXT)
2469                         bQuoted=sal_False;
2470                 }
2471             }
2472         }
2473         delete pTable;
2474 
2475         if ((GetToken().eType == TIDENT) && (GetFontDesc() == FNT_FUNCTION))
2476         {
2477             //Search for existing functions and remove extraenous keyword
2478             APPEND(rText,"func ");
2479         }
2480         else if (bQuoted)
2481             APPEND(rText,"italic ");
2482 
2483         if (bQuoted)
2484             rText.Append('\"');
2485 
2486     }
2487 
2488     rText.Append(GetToken().aText);
2489 
2490     if (bQuoted)
2491         rText.Append('\"');
2492     rText.Append(' ');
2493 }
2494 
Draw(OutputDevice & rDev,const Point & rPosition) const2495 void SmTextNode::Draw(OutputDevice &rDev, const Point& rPosition) const
2496 {
2497     if (IsPhantom()  ||  aText.Len() == 0  ||  aText.GetChar(0) == xub_Unicode('\0'))
2498         return;
2499 
2500     SmTmpDevice  aTmpDev ((OutputDevice &) rDev, sal_False);
2501     aTmpDev.SetFont(GetFont());
2502 
2503     Point  aPos (rPosition);
2504     aPos.Y() += GetBaselineOffset();
2505     // auf Pixelkoordinaten runden
2506     aPos = rDev.PixelToLogic( rDev.LogicToPixel(aPos) );
2507 
2508 #if OSL_DEBUG_LEVEL > 1
2509     sal_Int32 nPos = 0;
2510     sal_UCS4 cChar = OUString( aText ).iterateCodePoints( &nPos );
2511     (void) cChar;
2512 #endif
2513 
2514     rDev.DrawStretchText(aPos, GetWidth(), aText);
2515 
2516 #ifdef SM_RECT_DEBUG
2517     if (!IsDebug())
2518         return;
2519 
2520     int  nRFlags = SM_RECT_CORE | SM_RECT_ITALIC | SM_RECT_LINES | SM_RECT_MID;
2521     SmRect::Draw(rDev, rPosition, nRFlags);
2522 #endif
2523 }
2524 
GetAccessibleText(String & rText) const2525 void SmTextNode::GetAccessibleText( String &rText ) const
2526 {
2527     rText += aText;
2528 }
2529 
2530 /**************************************************************************/
2531 
CreateTextFromNode(String & rText)2532 void SmMatrixNode::CreateTextFromNode(String &rText)
2533 {
2534     APPEND(rText,"matrix {");
2535     for (sal_uInt16 i = 0;  i < nNumRows; i++)
2536     {
2537         for (sal_uInt16 j = 0;  j < nNumCols; j++)
2538         {
2539             SmNode *pNode = GetSubNode(i * nNumCols + j);
2540             pNode->CreateTextFromNode(rText);
2541             if (j != nNumCols-1)
2542                 APPEND(rText,"# ");
2543         }
2544         if (i != nNumRows-1)
2545             APPEND(rText,"## ");
2546     }
2547     rText.EraseTrailingChars();
2548     APPEND(rText,"} ");
2549 }
2550 
2551 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)2552 void SmMatrixNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
2553 {
2554     Point   aPosition,
2555             aOffset;
2556     SmNode *pNode;
2557     sal_uInt16  i, j;
2558 
2559     // initialize array that is to hold the maximum widhts of all
2560     // elements (subnodes) in that column.
2561     long *pColWidth = new long[nNumCols];
2562     for (j = 0;  j  < nNumCols;  j++)
2563         pColWidth[j] = 0;
2564 
2565     // arrange subnodes and calculate the aboves arrays contents
2566     sal_uInt16 nNodes = GetNumSubNodes();
2567     for (i = 0;  i < nNodes;  i++)
2568     {
2569         sal_uInt16 nIdx = nNodes - 1 - i;
2570         if (NULL != (pNode = GetSubNode(nIdx)))
2571         {
2572             pNode->Arrange(rDev, rFormat);
2573             int  nCol = nIdx % nNumCols;
2574             pColWidth[nCol] = Max(pColWidth[nCol], pNode->GetItalicWidth());
2575         }
2576     }
2577 
2578     // norm distance from which the following two are calcutated
2579     const int  nNormDist = 3 * GetFont().GetSize().Height();
2580 
2581     // define horizontal and vertical minimal distances that seperate
2582     // the elements
2583     long  nHorDist = nNormDist * rFormat.GetDistance(DIS_MATRIXCOL) / 100L,
2584           nVerDist = nNormDist * rFormat.GetDistance(DIS_MATRIXROW) / 100L;
2585 
2586     // build array that holds the leftmost position for each column
2587     long *pColLeft = new long[nNumCols];
2588     long  nX = 0;
2589     for (j = 0;  j < nNumCols;  j++)
2590     {   pColLeft[j] = nX;
2591         nX += pColWidth[j] + nHorDist;
2592     }
2593 
2594     Point   aPos, aDelta;
2595     SmRect  aLineRect;
2596     SmRect::operator = (SmRect());
2597     for (i = 0;  i < nNumRows;  i++)
2598     {   aLineRect = SmRect();
2599         for (j = 0;  j < nNumCols;  j++)
2600         {   SmNode *pTmpNode = GetSubNode(i * nNumCols + j);
2601             DBG_ASSERT(pTmpNode, "Sm: NULL pointer");
2602 
2603             const SmRect &rNodeRect = pTmpNode->GetRect();
2604 
2605             // align all baselines in that row if possible
2606             aPos = rNodeRect.AlignTo(aLineRect, RP_RIGHT, RHA_CENTER, RVA_BASELINE);
2607             aPos.X() += nHorDist;
2608 
2609             // get horizontal alignment
2610             const SmNode *pCoNode   = pTmpNode->GetLeftMost();
2611             RectHorAlign  eHorAlign = pCoNode->GetRectHorAlign();
2612 
2613             // caculate horizontal position of element depending on column
2614             // and horizontal alignment
2615             switch (eHorAlign)
2616             {   case RHA_LEFT:
2617                     aPos.X() = rNodeRect.GetLeft() + pColLeft[j];
2618                     break;
2619                 case RHA_CENTER:
2620                     aPos.X() = rNodeRect.GetLeft() + pColLeft[j]
2621                                + pColWidth[j] / 2
2622                                - rNodeRect.GetItalicCenterX();
2623                     break;
2624                 case RHA_RIGHT:
2625                     aPos.X() = rNodeRect.GetLeft() + pColLeft[j]
2626                                + pColWidth[j] - rNodeRect.GetItalicWidth();
2627                     break;
2628             }
2629 
2630             pTmpNode->MoveTo(aPos);
2631             aLineRect.ExtendBy(rNodeRect, RCP_XOR);
2632         }
2633 
2634         aPos = aLineRect.AlignTo(*this, RP_BOTTOM, RHA_CENTER, RVA_BASELINE);
2635         aPos.Y() += nVerDist;
2636 
2637         // move 'aLineRect' and rectangles in that line to final position
2638         aDelta.X() = 0;     // since horizontal alignment is already done
2639         aDelta.Y() = aPos.Y() - aLineRect.GetTop();
2640         aLineRect.Move(aDelta);
2641         for (j = 0;  j < nNumCols;  j++)
2642             if (NULL != (pNode = GetSubNode(i * nNumCols + j)))
2643                 pNode->Move(aDelta);
2644 
2645         ExtendBy(aLineRect, RCP_NONE);
2646     }
2647 
2648     delete [] pColLeft;
2649     delete [] pColWidth;
2650 }
2651 
2652 
SetRowCol(sal_uInt16 nMatrixRows,sal_uInt16 nMatrixCols)2653 void SmMatrixNode::SetRowCol(sal_uInt16 nMatrixRows, sal_uInt16 nMatrixCols)
2654 {
2655     nNumRows = nMatrixRows;
2656     nNumCols = nMatrixCols;
2657 }
2658 
2659 
GetLeftMost()2660 SmNode * SmMatrixNode::GetLeftMost()
2661 {
2662     return this;
2663 }
2664 
2665 
2666 /**************************************************************************/
2667 
2668 
SmMathSymbolNode(const SmToken & rNodeToken)2669 SmMathSymbolNode::SmMathSymbolNode(const SmToken &rNodeToken)
2670 :   SmSpecialNode(NMATH, rNodeToken, FNT_MATH)
2671 {
2672     xub_Unicode cChar = GetToken().cMathChar;
2673     if ((xub_Unicode) '\0' != cChar)
2674         SetText( cChar );
2675 }
2676 
AdaptToX(const OutputDevice & rDev,sal_uLong nWidth)2677 void SmMathSymbolNode::AdaptToX(const OutputDevice &rDev, sal_uLong nWidth)
2678 {
2679     // Since there is no function to do this, we try to approximate it:
2680     Size  aFntSize (GetFont().GetSize());
2681 
2682     //! however the result is a bit better with 'nWidth' as initial font width
2683     aFntSize.Width() = nWidth;
2684     GetFont().SetSize(aFntSize);
2685 
2686     SmTmpDevice  aTmpDev ((OutputDevice &) rDev, sal_True);
2687     aTmpDev.SetFont(GetFont());
2688 
2689     // get denominator of error factor for width
2690     long nTmpBorderWidth = GetFont().GetBorderWidth();
2691     long nDenom = SmRect(aTmpDev, NULL, GetText(), nTmpBorderWidth).GetItalicWidth();
2692 
2693     // scale fontwidth with this error factor
2694     aFntSize.Width() *= nWidth;
2695     aFntSize.Width() /= nDenom ? nDenom : 1;
2696 
2697     GetFont().SetSize(aFntSize);
2698 }
2699 
AdaptToY(const OutputDevice & rDev,sal_uLong nHeight)2700 void SmMathSymbolNode::AdaptToY(const OutputDevice &rDev, sal_uLong nHeight)
2701 {
2702     GetFont().FreezeBorderWidth();
2703     Size  aFntSize (GetFont().GetSize());
2704 
2705     // da wir nur die Hoehe skalieren wollen muesen wir hier ggf die Fontweite
2706     // ermitteln um diese beizubehalten.
2707     if (aFntSize.Width() == 0)
2708     {
2709         OutputDevice &rDevNC = (OutputDevice &) rDev;
2710         rDevNC.Push(PUSH_FONT | PUSH_MAPMODE);
2711         rDevNC.SetFont(GetFont());
2712         aFntSize.Width() = rDev.GetFontMetric().GetSize().Width();
2713         rDevNC.Pop();
2714     }
2715     DBG_ASSERT(aFntSize.Width() != 0, "Sm: ");
2716 
2717     //! however the result is a bit better with 'nHeight' as initial
2718     //! font height
2719     aFntSize.Height() = nHeight;
2720     GetFont().SetSize(aFntSize);
2721 
2722     SmTmpDevice  aTmpDev ((OutputDevice &) rDev, sal_True);
2723     aTmpDev.SetFont(GetFont());
2724 
2725     // get denominator of error factor for height
2726     long nTmpBorderWidth = GetFont().GetBorderWidth();
2727     long nDenom = SmRect(aTmpDev, NULL, GetText(), nTmpBorderWidth).GetHeight();
2728 
2729     // scale fontwidth with this error factor
2730     aFntSize.Height() *= nHeight;
2731     aFntSize.Height() /= nDenom ? nDenom : 1;
2732 
2733     GetFont().SetSize(aFntSize);
2734 }
2735 
2736 
Prepare(const SmFormat & rFormat,const SmDocShell & rDocShell)2737 void SmMathSymbolNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell)
2738 {
2739     SmNode::Prepare(rFormat, rDocShell);
2740 
2741     GetFont() = rFormat.GetFont(GetFontDesc());
2742     // use same font size as is used for variables
2743     GetFont().SetSize( rFormat.GetFont( FNT_VARIABLE ).GetSize() );
2744 
2745     DBG_ASSERT(GetFont().GetCharSet() == RTL_TEXTENCODING_SYMBOL  ||
2746                GetFont().GetCharSet() == RTL_TEXTENCODING_UNICODE,
2747         "incorrect charset for character from StarMath/OpenSymbol font");
2748 
2749     Flags() |= FLG_FONT | FLG_ITALIC;
2750 };
2751 
2752 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)2753 void SmMathSymbolNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
2754 {
2755     const XubString &rText = GetText();
2756 
2757     if (rText.Len() == 0  ||  rText.GetChar(0) == xub_Unicode('\0'))
2758     {   SmRect::operator = (SmRect());
2759         return;
2760     }
2761 
2762     PrepareAttributes();
2763 
2764     GetFont() *= Fraction (rFormat.GetRelSize(SIZ_TEXT), 100);
2765 
2766     SmTmpDevice  aTmpDev ((OutputDevice &) rDev, sal_True);
2767     aTmpDev.SetFont(GetFont());
2768 
2769     SmRect::operator = (SmRect(aTmpDev, &rFormat, rText, GetFont().GetBorderWidth()));
2770 }
2771 
CreateTextFromNode(String & rText)2772 void SmMathSymbolNode::CreateTextFromNode(String &rText)
2773 {
2774     String sStr;
2775     MathType::LookupChar(GetToken().cMathChar, sStr);
2776     rText.Append(sStr);
2777 }
2778 
CreateTextFromNode(String & rText)2779 void SmRectangleNode::CreateTextFromNode(String &rText)
2780 {
2781     switch (GetToken().eType)
2782     {
2783     case TUNDERLINE:
2784         APPEND(rText,"underline ");
2785         break;
2786     case TOVERLINE:
2787         APPEND(rText,"overline ");
2788         break;
2789     case TOVERSTRIKE:
2790         APPEND(rText,"overstrike ");
2791         break;
2792     default:
2793         break;
2794     }
2795 }
2796 
CreateTextFromNode(String & rText)2797 void SmAttributNode::CreateTextFromNode(String &rText)
2798 {
2799     SmNode *pNode;
2800     sal_uInt16  nSize = GetNumSubNodes();
2801     DBG_ASSERT(nSize == 2, "Node missing members");
2802     rText.Append('{');
2803     sal_Unicode nLast=0;
2804     if (NULL != (pNode = GetSubNode(0)))
2805     {
2806         String aStr;
2807         pNode->CreateTextFromNode(aStr);
2808         if (aStr.Len() > 1)
2809             rText.Append(aStr);
2810         else
2811         {
2812             nLast = aStr.GetChar(0);
2813             switch (nLast)
2814             {
2815             case 0xAF: // MACRON
2816                 APPEND(rText,"overline ");
2817                 break;
2818             case 0x2d9: // DOT ABOVE
2819                 APPEND(rText,"dot ");
2820                 break;
2821             case 0x2dc: // SMALL TILDE
2822                 APPEND(rText,"widetilde ");
2823                 break;
2824             case 0xA8: // DIAERESIS
2825                 APPEND(rText,"ddot ");
2826                 break;
2827             case 0xE082:
2828                 break;
2829             case 0xE09B:
2830             case 0x20DB: // COMBINING THREE DOTS ABOVE
2831                 APPEND(rText,"dddot ");
2832                 break;
2833             case 0x301: // COMBINING ACUTE ACCENT
2834                 APPEND(rText,"acute ");
2835                 break;
2836             case 0x300: // COMBINING GRAVE ACCENT
2837                 APPEND(rText,"grave ");
2838                 break;
2839             case 0x30C: // COMBINING CARON
2840                 APPEND(rText,"check ");
2841                 break;
2842             case 0x306: // COMBINING BREVE
2843                 APPEND(rText,"breve ");
2844                 break;
2845             case 0x30A: // COMBINING RING ABOVE
2846                 APPEND(rText,"circle ");
2847                 break;
2848             case 0x20D7: // COMBINING RIGHT ARROW ABOVE
2849                 APPEND(rText,"vec ");
2850                 break;
2851             case 0x303: // COMBINING TILDE
2852                 APPEND(rText,"tilde ");
2853                 break;
2854             case 0x302: // COMBINING CIRCUMFLEX ACCENT
2855                 APPEND(rText,"hat ");
2856                 break;
2857             case 0x304: // COMBINING MACRON
2858                 APPEND(rText,"bar ");
2859                 break;
2860             default:
2861                 rText.Append(nLast);
2862                 break;
2863             }
2864         }
2865     }
2866 
2867     if (nSize == 2)
2868         if (NULL != (pNode = GetSubNode(1)))
2869             pNode->CreateTextFromNode(rText);
2870 
2871     rText.EraseTrailingChars();
2872 
2873     if (nLast == 0xE082)
2874         APPEND(rText," overbrace {}");
2875 
2876     APPEND(rText,"} ");
2877 }
2878 
2879 /**************************************************************************/
2880 
lcl_IsFromGreekSymbolSet(const String & rTokenText)2881 bool lcl_IsFromGreekSymbolSet( const String &rTokenText )
2882 {
2883     bool bRes = false;
2884 
2885     // valid symbol name needs to have a '%' at pos 0 and at least an additonal char
2886     if (rTokenText.Len() > 2 && rTokenText.GetBuffer()[0] == (sal_Unicode)'%')
2887     {
2888         String aName( rTokenText.Copy(1) );
2889         SmSym *pSymbol = SM_MOD()->GetSymbolManager().GetSymbolByName( aName );
2890         if (pSymbol && GetExportSymbolSetName( pSymbol->GetSymbolSetName() ).EqualsAscii( "Greek" ) )
2891             bRes = true;
2892     }
2893 
2894     return bRes;
2895 }
2896 
2897 
SmSpecialNode(SmNodeType eNodeType,const SmToken & rNodeToken,sal_uInt16 _nFontDesc)2898 SmSpecialNode::SmSpecialNode(SmNodeType eNodeType, const SmToken &rNodeToken, sal_uInt16 _nFontDesc) :
2899     SmTextNode(eNodeType, rNodeToken, _nFontDesc)
2900 {
2901     bIsFromGreekSymbolSet = lcl_IsFromGreekSymbolSet( rNodeToken.aText );
2902 }
2903 
2904 
SmSpecialNode(const SmToken & rNodeToken)2905 SmSpecialNode::SmSpecialNode(const SmToken &rNodeToken) :
2906     SmTextNode(NSPECIAL, rNodeToken, FNT_MATH)  //! default Font nicht immer richtig
2907 {
2908     bIsFromGreekSymbolSet = lcl_IsFromGreekSymbolSet( rNodeToken.aText );
2909 }
2910 
2911 
Prepare(const SmFormat & rFormat,const SmDocShell & rDocShell)2912 void SmSpecialNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell)
2913 {
2914     SmNode::Prepare(rFormat, rDocShell);
2915 
2916     const SmSym   *pSym;
2917     SmModule  *pp = SM_MOD();
2918 
2919     String aName( GetToken().aText.Copy(1) );
2920     if (NULL != (pSym = pp->GetSymbolManager().GetSymbolByName( aName )))
2921     {
2922         sal_UCS4 cChar = pSym->GetCharacter();
2923         String aTmp( OUString( &cChar, 1 ) );
2924         SetText( aTmp );
2925         GetFont() = pSym->GetFace();
2926     }
2927     else
2928     {
2929         SetText( GetToken().aText );
2930         GetFont() = rFormat.GetFont(FNT_VARIABLE);
2931     }
2932     // use same font size as is used for variables
2933     GetFont().SetSize( rFormat.GetFont( FNT_VARIABLE ).GetSize() );
2934 
2935     //! eigentlich sollten nur WEIGHT_NORMAL und WEIGHT_BOLD vorkommen...
2936     //! In der sms-Datei gibt es jedoch zB auch 'WEIGHT_ULTRALIGHT'
2937     //! daher vergleichen wir hier mit  >  statt mit  !=  .
2938     //! (Langfristig sollte die Notwendigkeit fuer 'PrepareAttribut', und damit
2939     //! fuer dieses hier, mal entfallen.)
2940     //
2941     //! see also SmFontStyles::GetStyleName
2942     if (IsItalic( GetFont() ))
2943         SetAttribut(ATTR_ITALIC);
2944     if (IsBold( GetFont() ))
2945         SetAttribut(ATTR_BOLD);
2946 
2947     Flags() |= FLG_FONT;
2948 
2949     if (bIsFromGreekSymbolSet)
2950     {
2951         DBG_ASSERT( GetText().Len() == 1, "a symbol should only consist of 1 char!" );
2952         bool bItalic = false;
2953         sal_Int16 nStyle = rFormat.GetGreekCharStyle();
2954         DBG_ASSERT( nStyle >= 0 && nStyle <= 2, "unexpected value for GreekCharStyle" );
2955         if (nStyle == 1)
2956             bItalic = true;
2957         else if (nStyle == 2)
2958         {
2959             String aTmp( GetText() );
2960             if (aTmp.Len() > 0)
2961             {
2962                 const sal_Unicode cUppercaseAlpha = 0x0391;
2963                 const sal_Unicode cUppercaseOmega = 0x03A9;
2964                 sal_Unicode cChar = aTmp.GetBuffer()[0];
2965                 // uppercase letters should be straight and lowercase letters italic
2966                 bItalic = !(cUppercaseAlpha <= cChar && cChar <= cUppercaseOmega);
2967             }
2968         }
2969 
2970         if (bItalic)
2971             Attributes() |= ATTR_ITALIC;
2972         else
2973             Attributes() &= ~ATTR_ITALIC;;
2974     }
2975 };
2976 
2977 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)2978 void SmSpecialNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
2979 {
2980     PrepareAttributes();
2981 
2982     SmTmpDevice  aTmpDev ((OutputDevice &) rDev, sal_True);
2983     aTmpDev.SetFont(GetFont());
2984 
2985     SmRect::operator = (SmRect(aTmpDev, &rFormat, GetText(), GetFont().GetBorderWidth()));
2986 }
2987 
2988 
Draw(OutputDevice & rDev,const Point & rPosition) const2989 void SmSpecialNode::Draw(OutputDevice &rDev, const Point& rPosition) const
2990 {
2991     //! since this chars might come from any font, that we may not have
2992     //! set to ALIGN_BASELINE yet, we do it now.
2993     ((SmSpecialNode *)this)->GetFont().SetAlign(ALIGN_BASELINE);
2994 
2995     SmTextNode::Draw(rDev, rPosition);
2996 }
2997 
2998 
2999 /**************************************************************************/
3000 
3001 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)3002 void SmGlyphSpecialNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
3003 {
3004     PrepareAttributes();
3005 
3006     SmTmpDevice  aTmpDev ((OutputDevice &) rDev, sal_True);
3007     aTmpDev.SetFont(GetFont());
3008 
3009     SmRect::operator = (SmRect(aTmpDev, &rFormat, GetText(),
3010                                GetFont().GetBorderWidth()).AsGlyphRect());
3011 }
3012 
3013 
3014 /**************************************************************************/
3015 
3016 
Prepare(const SmFormat & rFormat,const SmDocShell & rDocShell)3017 void SmPlaceNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell)
3018 {
3019     SmNode::Prepare(rFormat, rDocShell);
3020 
3021     GetFont().SetColor(COL_GRAY);
3022     Flags() |= FLG_COLOR | FLG_FONT | FLG_ITALIC;
3023 };
3024 
3025 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)3026 void SmPlaceNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
3027 {
3028     PrepareAttributes();
3029 
3030     SmTmpDevice  aTmpDev ((OutputDevice &) rDev, sal_True);
3031     aTmpDev.SetFont(GetFont());
3032 
3033     SmRect::operator = (SmRect(aTmpDev, &rFormat, GetText(), GetFont().GetBorderWidth()));
3034 }
3035 
3036 
3037 /**************************************************************************/
3038 
3039 
Prepare(const SmFormat & rFormat,const SmDocShell & rDocShell)3040 void SmErrorNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell)
3041 {
3042     SmNode::Prepare(rFormat, rDocShell);
3043 
3044     GetFont().SetColor(COL_RED);
3045     Flags() |= FLG_VISIBLE | FLG_BOLD | FLG_ITALIC
3046                | FLG_COLOR | FLG_FONT | FLG_SIZE;
3047 }
3048 
3049 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)3050 void SmErrorNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
3051 {
3052     PrepareAttributes();
3053 
3054     SmTmpDevice  aTmpDev ((OutputDevice &) rDev, sal_True);
3055     aTmpDev.SetFont(GetFont());
3056 
3057     const XubString &rText = GetText();
3058     SmRect::operator = (SmRect(aTmpDev, &rFormat, rText, GetFont().GetBorderWidth()));
3059 }
3060 
3061 
3062 /**************************************************************************/
3063 
3064 
IncreaseBy(const SmToken & rToken)3065 void SmBlankNode::IncreaseBy(const SmToken &rToken)
3066 {
3067     switch(rToken.eType)
3068     {
3069         case TBLANK:    nNum += 4;  break;
3070         case TSBLANK:   nNum += 1;  break;
3071         default:
3072             break;
3073     }
3074 }
3075 
3076 
Prepare(const SmFormat & rFormat,const SmDocShell & rDocShell)3077 void SmBlankNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell)
3078 {
3079     SmNode::Prepare(rFormat, rDocShell);
3080 
3081     //! hier muss/sollte es lediglich nicht der StarMath Font sein,
3082     //! damit fuer das in Arrange verwendete Zeichen ein "normales"
3083     //! (ungecliptes) Rechteck erzeugt wird.
3084     GetFont() = rFormat.GetFont(FNT_VARIABLE);
3085 
3086     Flags() |= FLG_FONT | FLG_BOLD | FLG_ITALIC;
3087 }
3088 
3089 
Arrange(const OutputDevice & rDev,const SmFormat & rFormat)3090 void SmBlankNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
3091 {
3092     SmTmpDevice  aTmpDev ((OutputDevice &) rDev, sal_True);
3093     aTmpDev.SetFont(GetFont());
3094 
3095     // Abstand von der Fonthoehe abhaengig machen
3096     // (damit er beim skalieren (zB size *2 {a ~ b}) mitwaechst)
3097     long  nDist  = GetFont().GetSize().Height() / 10L,
3098           nSpace = nNum * nDist;
3099 
3100     // ein SmRect mit Baseline und allem drum und dran besorgen
3101     SmRect::operator = (SmRect(aTmpDev, &rFormat, XubString(xub_Unicode(' ')),
3102                                GetFont().GetBorderWidth()));
3103 
3104     // und dieses auf die gewuenschte Breite bringen
3105     SetItalicSpaces(0, 0);
3106     SetWidth(nSpace);
3107 }
3108 
3109 
3110 
3111