1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3  * This file is part of the LibreOffice project.
4  *
5  * This Source Code Form is subject to the terms of the Mozilla Public
6  * License, v. 2.0. If a copy of the MPL was not distributed with this
7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8  *
9  * This file incorporates work covered by the following license notice:
10  *
11  *   Licensed to the Apache Software Foundation (ASF) under one or more
12  *   contributor license agreements. See the NOTICE file distributed
13  *   with this work for additional information regarding copyright
14  *   ownership. The ASF licenses this file to you under the Apache
15  *   License, Version 2.0 (the "License"); you may not use this file
16  *   except in compliance with the License. You may obtain a copy of
17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
18  */
19 
20 #include <o3tl/unit_conversion.hxx>
21 #include <tools/bigint.hxx>
22 #include <tools/helpers.hxx>
23 #include <rtl/ustrbuf.hxx>
24 #include <svx/svdopath.hxx>
25 #include <math.h>
26 #include <svx/xpoly.hxx>
27 #include <svx/svdtrans.hxx>
28 #include <svx/svddrag.hxx>
29 #include <svx/svdmodel.hxx>
30 #include <svx/svdhdl.hxx>
31 #include <svx/svdview.hxx>
32 #include <svx/dialmgr.hxx>
33 #include <svx/strings.hrc>
34 
35 #include <svx/polypolygoneditor.hxx>
36 #include <sdr/contact/viewcontactofsdrpathobj.hxx>
37 #include <basegfx/matrix/b2dhommatrix.hxx>
38 #include <basegfx/point/b2dpoint.hxx>
39 #include <basegfx/polygon/b2dpolypolygontools.hxx>
40 #include <basegfx/range/b2drange.hxx>
41 #include <basegfx/curve/b2dcubicbezier.hxx>
42 #include <basegfx/polygon/b2dpolygontools.hxx>
43 #include <sdr/attribute/sdrtextattribute.hxx>
44 #include <sdr/primitive2d/sdrattributecreator.hxx>
45 #include <basegfx/matrix/b2dhommatrixtools.hxx>
46 #include <sdr/attribute/sdrformtextattribute.hxx>
47 #include <vcl/ptrstyle.hxx>
48 #include <memory>
49 #include <sal/log.hxx>
50 #include <osl/diagnose.h>
51 
52 using namespace sdr;
53 
GetPrevPnt(sal_uInt16 nPnt,sal_uInt16 nPntMax,bool bClosed)54 static sal_uInt16 GetPrevPnt(sal_uInt16 nPnt, sal_uInt16 nPntMax, bool bClosed)
55 {
56     if (nPnt>0) {
57         nPnt--;
58     } else {
59         nPnt=nPntMax;
60         if (bClosed) nPnt--;
61     }
62     return nPnt;
63 }
64 
GetNextPnt(sal_uInt16 nPnt,sal_uInt16 nPntMax,bool bClosed)65 static sal_uInt16 GetNextPnt(sal_uInt16 nPnt, sal_uInt16 nPntMax, bool bClosed)
66 {
67     nPnt++;
68     if (nPnt>nPntMax || (bClosed && nPnt>=nPntMax)) nPnt=0;
69     return nPnt;
70 }
71 
72 namespace {
73 
74 struct ImpSdrPathDragData  : public SdrDragStatUserData
75 {
76     XPolygon                    aXP;            // section of the original polygon
77     bool                        bValid;         // FALSE = too few points
78     bool                        bClosed;        // closed object?
79     sal_uInt16                  nPoly;          // number of the polygon in the PolyPolygon
80     sal_uInt16                  nPnt;           // number of point in the above polygon
81     sal_uInt16                  nPointCount;    // number of points of the polygon
82     bool                        bBegPnt;        // dragged point is first point of a Polyline
83     bool                        bEndPnt;        // dragged point is finishing point of a Polyline
84     sal_uInt16                  nPrevPnt;       // index of previous point
85     sal_uInt16                  nNextPnt;       // index of next point
86     bool                        bPrevIsBegPnt;  // previous point is first point of a Polyline
87     bool                        bNextIsEndPnt;  // next point is first point of a Polyline
88     sal_uInt16                  nPrevPrevPnt;   // index of point before previous point
89     sal_uInt16                  nNextNextPnt;   // index of point after next point
90     bool                        bControl;       // point is a control point
91     bool                        bIsNextControl; // point is a control point after a support point
92     bool                        bPrevIsControl; // if nPnt is a support point: a control point comes before
93     bool                        bNextIsControl; // if nPnt is a support point: a control point comes after
94     sal_uInt16                  nPrevPrevPnt0;
95     sal_uInt16                  nPrevPnt0;
96     sal_uInt16                  nPnt0;
97     sal_uInt16                  nNextPnt0;
98     sal_uInt16                  nNextNextPnt0;
99     bool                        bEliminate;     // delete point? (is set by MovDrag)
100 
101     bool                        mbMultiPointDrag;
102     const XPolyPolygon          maOrig;
103     XPolyPolygon                maMove;
104     std::vector<SdrHdl*>        maHandles;
105 
106 public:
107     ImpSdrPathDragData(const SdrPathObj& rPO, const SdrHdl& rHdl, bool bMuPoDr, const SdrDragStat& rDrag);
108     void ResetPoly(const SdrPathObj& rPO);
IsMultiPointDrag__anonea1551cd0111::ImpSdrPathDragData109     bool IsMultiPointDrag() const { return mbMultiPointDrag; }
110 };
111 
112 }
113 
ImpSdrPathDragData(const SdrPathObj & rPO,const SdrHdl & rHdl,bool bMuPoDr,const SdrDragStat & rDrag)114 ImpSdrPathDragData::ImpSdrPathDragData(const SdrPathObj& rPO, const SdrHdl& rHdl, bool bMuPoDr, const SdrDragStat& rDrag)
115     : aXP(5)
116     , bValid(false)
117     , bClosed(false)
118     , nPoly(0)
119     , nPnt(0)
120     , nPointCount(0)
121     , bBegPnt(false)
122     , bEndPnt(false)
123     , nPrevPnt(0)
124     , nNextPnt(0)
125     , bPrevIsBegPnt(false)
126     , bNextIsEndPnt(false)
127     , nPrevPrevPnt(0)
128     , nNextNextPnt(0)
129     , bControl(false)
130     , bIsNextControl(false)
131     , bPrevIsControl(false)
132     , bNextIsControl(false)
133     , nPrevPrevPnt0(0)
134     , nPrevPnt0(0)
135     , nPnt0(0)
136     , nNextPnt0(0)
137     , nNextNextPnt0(0)
138     , bEliminate(false)
139     , mbMultiPointDrag(bMuPoDr)
140     , maOrig(rPO.GetPathPoly())
141     , maHandles(0)
142 {
143     if(mbMultiPointDrag)
144     {
145         const SdrMarkView& rMarkView = *rDrag.GetView();
146         const SdrHdlList& rHdlList = rMarkView.GetHdlList();
147         const size_t nHdlCount = rHdlList.GetHdlCount();
148         const SdrObject* pInteractionObject(nHdlCount && rHdlList.GetHdl(0) ? rHdlList.GetHdl(0)->GetObj() : nullptr);
149 
150         for(size_t a = 0; a < nHdlCount; ++a)
151         {
152             SdrHdl* pTestHdl = rHdlList.GetHdl(a);
153 
154             if(pTestHdl && pTestHdl->IsSelected() && pTestHdl->GetObj() == pInteractionObject)
155             {
156                 maHandles.push_back(pTestHdl);
157             }
158         }
159 
160         maMove = maOrig;
161         bValid = true;
162     }
163     else
164     {
165         sal_uInt16 nPntMax = 0; // maximum index
166         bValid=false;
167         bClosed=rPO.IsClosed();          // closed object?
168         nPoly=static_cast<sal_uInt16>(rHdl.GetPolyNum());            // number of the polygon in the PolyPolygon
169         nPnt=static_cast<sal_uInt16>(rHdl.GetPointNum());            // number of points in the above polygon
170         const XPolygon aTmpXP(rPO.GetPathPoly().getB2DPolygon(nPoly));
171         nPointCount=aTmpXP.GetPointCount();        // number of point of the polygon
172         if (nPointCount==0 || (bClosed && nPointCount==1)) return; // minimum of 1 points for Lines, minimum of 2 points for Polygon
173         nPntMax=nPointCount-1;                  // maximum index
174         bBegPnt=!bClosed && nPnt==0;        // dragged point is first point of a Polyline
175         bEndPnt=!bClosed && nPnt==nPntMax;  // dragged point is finishing point of a Polyline
176         if (bClosed && nPointCount<=3) {        // if polygon is only a line
177             bBegPnt=(nPointCount<3) || nPnt==0;
178             bEndPnt=(nPointCount<3) || nPnt==nPntMax-1;
179         }
180         nPrevPnt=nPnt;                      // index of previous point
181         nNextPnt=nPnt;                      // index of next point
182         if (!bBegPnt) nPrevPnt=GetPrevPnt(nPnt,nPntMax,bClosed);
183         if (!bEndPnt) nNextPnt=GetNextPnt(nPnt,nPntMax,bClosed);
184         bPrevIsBegPnt=bBegPnt || (!bClosed && nPrevPnt==0);
185         bNextIsEndPnt=bEndPnt || (!bClosed && nNextPnt==nPntMax);
186         nPrevPrevPnt=nPnt;                  // index of point before previous point
187         nNextNextPnt=nPnt;                  // index of point after next point
188         if (!bPrevIsBegPnt) nPrevPrevPnt=GetPrevPnt(nPrevPnt,nPntMax,bClosed);
189         if (!bNextIsEndPnt) nNextNextPnt=GetNextPnt(nNextPnt,nPntMax,bClosed);
190         bControl=rHdl.IsPlusHdl();          // point is a control point
191         bIsNextControl=false;               // point is a control point after a support point
192         bPrevIsControl=false;               // if nPnt is a support point: a control point comes before
193         bNextIsControl=false;               // if nPnt is a support point: a control point comes after
194         if (bControl) {
195             bIsNextControl=!aTmpXP.IsControl(nPrevPnt);
196         } else {
197             bPrevIsControl=!bBegPnt && !bPrevIsBegPnt && aTmpXP.GetFlags(nPrevPnt)==PolyFlags::Control;
198             bNextIsControl=!bEndPnt && !bNextIsEndPnt && aTmpXP.GetFlags(nNextPnt)==PolyFlags::Control;
199         }
200         nPrevPrevPnt0=nPrevPrevPnt;
201         nPrevPnt0    =nPrevPnt;
202         nPnt0        =nPnt;
203         nNextPnt0    =nNextPnt;
204         nNextNextPnt0=nNextNextPnt;
205         nPrevPrevPnt=0;
206         nPrevPnt=1;
207         nPnt=2;
208         nNextPnt=3;
209         nNextNextPnt=4;
210         bEliminate=false;
211         ResetPoly(rPO);
212         bValid=true;
213     }
214 }
215 
ResetPoly(const SdrPathObj & rPO)216 void ImpSdrPathDragData::ResetPoly(const SdrPathObj& rPO)
217 {
218     const XPolygon aTmpXP(rPO.GetPathPoly().getB2DPolygon(nPoly));
219     aXP[0]=aTmpXP[nPrevPrevPnt0];  aXP.SetFlags(0,aTmpXP.GetFlags(nPrevPrevPnt0));
220     aXP[1]=aTmpXP[nPrevPnt0];      aXP.SetFlags(1,aTmpXP.GetFlags(nPrevPnt0));
221     aXP[2]=aTmpXP[nPnt0];          aXP.SetFlags(2,aTmpXP.GetFlags(nPnt0));
222     aXP[3]=aTmpXP[nNextPnt0];      aXP.SetFlags(3,aTmpXP.GetFlags(nNextPnt0));
223     aXP[4]=aTmpXP[nNextNextPnt0];  aXP.SetFlags(4,aTmpXP.GetFlags(nNextNextPnt0));
224 }
225 
226 namespace {
227 
228 struct ImpPathCreateUser  : public SdrDragStatUserData
229 {
230     Point                   aBezControl0;
231     Point                   aBezStart;
232     Point                   aBezCtrl1;
233     Point                   aBezCtrl2;
234     Point                   aBezEnd;
235     Point                   aCircStart;
236     Point                   aCircEnd;
237     Point                   aCircCenter;
238     Point                   aLineStart;
239     Point                   aLineEnd;
240     Point                   aRectP1;
241     Point                   aRectP2;
242     Point                   aRectP3;
243     tools::Long                    nCircRadius;
244     Degree100               nCircStAngle;
245     Degree100               nCircRelAngle;
246     bool                    bBezier;
247     bool                    bBezHasCtrl0;
248     bool                    bCircle;
249     bool                    bAngleSnap;
250     bool                    bLine;
251     bool                    bLine90;
252     bool                    bRect;
253     bool                    bMixedCreate;
254     sal_uInt16                  nBezierStartPoint;
255     SdrObjKind              eStartKind;
256     SdrObjKind              eCurrentKind;
257 
258 public:
ImpPathCreateUser__anonea1551cd0211::ImpPathCreateUser259     ImpPathCreateUser(): nCircRadius(0),nCircStAngle(0),nCircRelAngle(0),
260         bBezier(false),bBezHasCtrl0(false),bCircle(false),bAngleSnap(false),bLine(false),bLine90(false),bRect(false),
261         bMixedCreate(false),nBezierStartPoint(0),eStartKind(OBJ_NONE),eCurrentKind(OBJ_NONE) { }
262 
ResetFormFlags__anonea1551cd0211::ImpPathCreateUser263     void ResetFormFlags() { bBezier=false; bCircle=false; bLine=false; bRect=false; }
IsFormFlag__anonea1551cd0211::ImpPathCreateUser264     bool IsFormFlag() const { return bBezier || bCircle || bLine || bRect; }
265     XPolygon GetFormPoly() const;
266     void CalcBezier(const Point& rP1, const Point& rP2, const Point& rDir, bool bMouseDown);
267     XPolygon GetBezierPoly() const;
268     void CalcCircle(const Point& rP1, const Point& rP2, const Point& rDir, SdrView const * pView);
269     XPolygon GetCirclePoly() const;
270     void CalcLine(const Point& rP1, const Point& rP2, const Point& rDir, SdrView const * pView);
271     static Point    CalcLine(const Point& rCsr, tools::Long nDirX, tools::Long nDirY, SdrView const * pView);
272     XPolygon GetLinePoly() const;
273     void CalcRect(const Point& rP1, const Point& rP2, const Point& rDir, SdrView const * pView);
274     XPolygon GetRectPoly() const;
275 };
276 
277 }
278 
GetFormPoly() const279 XPolygon ImpPathCreateUser::GetFormPoly() const
280 {
281     if (bBezier) return GetBezierPoly();
282     if (bCircle) return GetCirclePoly();
283     if (bLine)   return GetLinePoly();
284     if (bRect)   return GetRectPoly();
285     return XPolygon();
286 }
287 
CalcBezier(const Point & rP1,const Point & rP2,const Point & rDir,bool bMouseDown)288 void ImpPathCreateUser::CalcBezier(const Point& rP1, const Point& rP2, const Point& rDir, bool bMouseDown)
289 {
290     aBezStart=rP1;
291     aBezCtrl1=rP1+rDir;
292     aBezCtrl2=rP2;
293 
294     // #i21479#
295     // Also copy the end point when no end point is set yet
296     if (!bMouseDown || (0 == aBezEnd.X() && 0 == aBezEnd.Y())) aBezEnd=rP2;
297 
298     bBezier=true;
299 }
300 
GetBezierPoly() const301 XPolygon ImpPathCreateUser::GetBezierPoly() const
302 {
303     XPolygon aXP(4);
304     aXP[0]=aBezStart; aXP.SetFlags(0,PolyFlags::Smooth);
305     aXP[1]=aBezCtrl1; aXP.SetFlags(1,PolyFlags::Control);
306     aXP[2]=aBezCtrl2; aXP.SetFlags(2,PolyFlags::Control);
307     aXP[3]=aBezEnd;
308     return aXP;
309 }
310 
CalcCircle(const Point & rP1,const Point & rP2,const Point & rDir,SdrView const * pView)311 void ImpPathCreateUser::CalcCircle(const Point& rP1, const Point& rP2, const Point& rDir, SdrView const * pView)
312 {
313     Degree100 nTangAngle=GetAngle(rDir);
314     aCircStart=rP1;
315     aCircEnd=rP2;
316     aCircCenter=rP1;
317     tools::Long dx=rP2.X()-rP1.X();
318     tools::Long dy=rP2.Y()-rP1.Y();
319     Degree100 dAngle=GetAngle(Point(dx,dy))-nTangAngle;
320     dAngle=NormAngle36000(dAngle);
321     Degree100 nTmpAngle=NormAngle36000(9000_deg100-dAngle);
322     bool bRet=nTmpAngle!=9000_deg100 && nTmpAngle!=27000_deg100;
323     tools::Long nRad=0;
324     if (bRet) {
325         double cs = cos(nTmpAngle.get() * F_PI18000);
326         double nR=static_cast<double>(GetLen(Point(dx,dy)))/cs/2;
327         nRad=std::abs(FRound(nR));
328     }
329     if (dAngle<18000_deg100) {
330         nCircStAngle=NormAngle36000(nTangAngle-9000_deg100);
331         nCircRelAngle=NormAngle36000(2_deg100*dAngle);
332         aCircCenter.AdjustX(FRound(nRad * cos((nTangAngle.get() + 9000) * F_PI18000)));
333         aCircCenter.AdjustY(-(FRound(nRad * sin((nTangAngle.get() + 9000) * F_PI18000))));
334     } else {
335         nCircStAngle=NormAngle36000(nTangAngle+9000_deg100);
336         nCircRelAngle=-NormAngle36000(36000_deg100-2_deg100*dAngle);
337         aCircCenter.AdjustX(FRound(nRad * cos((nTangAngle.get() - 9000) * F_PI18000)));
338         aCircCenter.AdjustY(-(FRound(nRad * sin((nTangAngle.get() - 9000) * F_PI18000))));
339     }
340     bAngleSnap=pView!=nullptr && pView->IsAngleSnapEnabled();
341     if (bAngleSnap) {
342         Degree100 nSA=pView->GetSnapAngle();
343         if (nSA) { // angle snapping
344             bool bNeg=nCircRelAngle<0_deg100;
345             if (bNeg) nCircRelAngle=-nCircRelAngle;
346             nCircRelAngle+=nSA/2_deg100;
347             nCircRelAngle/=nSA;
348             nCircRelAngle*=nSA;
349             nCircRelAngle=NormAngle36000(nCircRelAngle);
350             if (bNeg) nCircRelAngle=-nCircRelAngle;
351         }
352     }
353     nCircRadius=nRad;
354     if (nRad==0 || abs(nCircRelAngle).get()<5) bRet=false;
355     bCircle=bRet;
356 }
357 
GetCirclePoly() const358 XPolygon ImpPathCreateUser::GetCirclePoly() const
359 {
360     if (nCircRelAngle>=0_deg100) {
361         XPolygon aXP(aCircCenter,nCircRadius,nCircRadius,
362                      nCircStAngle, nCircStAngle+nCircRelAngle,false);
363         aXP[0]=aCircStart; aXP.SetFlags(0,PolyFlags::Smooth);
364         if (!bAngleSnap) aXP[aXP.GetPointCount()-1]=aCircEnd;
365         return aXP;
366     } else {
367         XPolygon aXP(aCircCenter,nCircRadius,nCircRadius,
368                      NormAngle36000(nCircStAngle+nCircRelAngle), nCircStAngle,false);
369         sal_uInt16 nCount=aXP.GetPointCount();
370         for (sal_uInt16 nNum=nCount/2; nNum>0;) {
371             nNum--; // reverse XPoly's order of points
372             sal_uInt16 n2=nCount-nNum-1;
373             Point aPt(aXP[nNum]);
374             aXP[nNum]=aXP[n2];
375             aXP[n2]=aPt;
376         }
377         aXP[0]=aCircStart; aXP.SetFlags(0,PolyFlags::Smooth);
378         if (!bAngleSnap) aXP[aXP.GetPointCount()-1]=aCircEnd;
379         return aXP;
380     }
381 }
382 
CalcLine(const Point & aCsr,tools::Long nDirX,tools::Long nDirY,SdrView const * pView)383 Point ImpPathCreateUser::CalcLine(const Point& aCsr, tools::Long nDirX, tools::Long nDirY, SdrView const * pView)
384 {
385     tools::Long x=aCsr.X();
386     tools::Long y=aCsr.Y();
387     bool bHLin=nDirY==0;
388     bool bVLin=nDirX==0;
389     if (bHLin) y=0;
390     else if (bVLin) x=0;
391     else {
392         tools::Long x1=BigMulDiv(y,nDirX,nDirY);
393         tools::Long y1=y;
394         tools::Long x2=x;
395         tools::Long y2=BigMulDiv(x,nDirY,nDirX);
396         tools::Long l1=std::abs(x1)+std::abs(y1);
397         tools::Long l2=std::abs(x2)+std::abs(y2);
398         if ((l1<=l2) != (pView!=nullptr && pView->IsBigOrtho())) {
399             x=x1; y=y1;
400         } else {
401             x=x2; y=y2;
402         }
403     }
404     return Point(x,y);
405 }
406 
CalcLine(const Point & rP1,const Point & rP2,const Point & rDir,SdrView const * pView)407 void ImpPathCreateUser::CalcLine(const Point& rP1, const Point& rP2, const Point& rDir, SdrView const * pView)
408 {
409     aLineStart=rP1;
410     aLineEnd=rP2;
411     bLine90=false;
412     if (rP1==rP2 || (rDir.X()==0 && rDir.Y()==0)) { bLine=false; return; }
413     Point aTmpPt(rP2-rP1);
414     tools::Long nDirX=rDir.X();
415     tools::Long nDirY=rDir.Y();
416     Point aP1(CalcLine(aTmpPt, nDirX, nDirY,pView)); aP1-=aTmpPt; tools::Long nQ1=std::abs(aP1.X())+std::abs(aP1.Y());
417     Point aP2(CalcLine(aTmpPt, nDirY,-nDirX,pView)); aP2-=aTmpPt; tools::Long nQ2=std::abs(aP2.X())+std::abs(aP2.Y());
418     if (pView!=nullptr && pView->IsOrtho()) nQ1=0; // Ortho turns off at right angle
419     bLine90=nQ1>2*nQ2;
420     if (!bLine90) { // smooth transition
421         aLineEnd+=aP1;
422     } else {          // rectangular transition
423         aLineEnd+=aP2;
424     }
425     bLine=true;
426 }
427 
GetLinePoly() const428 XPolygon ImpPathCreateUser::GetLinePoly() const
429 {
430     XPolygon aXP(2);
431     aXP[0]=aLineStart; if (!bLine90) aXP.SetFlags(0,PolyFlags::Smooth);
432     aXP[1]=aLineEnd;
433     return aXP;
434 }
435 
CalcRect(const Point & rP1,const Point & rP2,const Point & rDir,SdrView const * pView)436 void ImpPathCreateUser::CalcRect(const Point& rP1, const Point& rP2, const Point& rDir, SdrView const * pView)
437 {
438     aRectP1=rP1;
439     aRectP2=rP1;
440     aRectP3=rP2;
441     if (rP1==rP2 || (rDir.X()==0 && rDir.Y()==0)) { bRect=false; return; }
442     Point aTmpPt(rP2-rP1);
443     tools::Long nDirX=rDir.X();
444     tools::Long nDirY=rDir.Y();
445     tools::Long x=aTmpPt.X();
446     tools::Long y=aTmpPt.Y();
447     bool bHLin=nDirY==0;
448     bool bVLin=nDirX==0;
449     if (bHLin) y=0;
450     else if (bVLin) x=0;
451     else {
452         y=BigMulDiv(x,nDirY,nDirX);
453         tools::Long nHypLen=aTmpPt.Y()-y;
454         Degree100 nTangAngle=-GetAngle(rDir);
455         // sin=g/h, g=h*sin
456         double a = nTangAngle.get() * F_PI18000;
457         double sn=sin(a);
458         double cs=cos(a);
459         double nGKathLen=nHypLen*sn;
460         y+=FRound(nGKathLen*sn);
461         x+=FRound(nGKathLen*cs);
462     }
463     aRectP2.AdjustX(x );
464     aRectP2.AdjustY(y );
465     if (pView!=nullptr && pView->IsOrtho()) {
466         tools::Long dx1=aRectP2.X()-aRectP1.X(); tools::Long dx1a=std::abs(dx1);
467         tools::Long dy1=aRectP2.Y()-aRectP1.Y(); tools::Long dy1a=std::abs(dy1);
468         tools::Long dx2=aRectP3.X()-aRectP2.X(); tools::Long dx2a=std::abs(dx2);
469         tools::Long dy2=aRectP3.Y()-aRectP2.Y(); tools::Long dy2a=std::abs(dy2);
470         bool b1MoreThan2=dx1a+dy1a>dx2a+dy2a;
471         if (b1MoreThan2 != pView->IsBigOrtho()) {
472             tools::Long xtemp=dy2a-dx1a; if (dx1<0) xtemp=-xtemp;
473             tools::Long ytemp=dx2a-dy1a; if (dy1<0) ytemp=-ytemp;
474             aRectP2.AdjustX(xtemp );
475             aRectP2.AdjustY(ytemp );
476             aRectP3.AdjustX(xtemp );
477             aRectP3.AdjustY(ytemp );
478         } else {
479             tools::Long xtemp=dy1a-dx2a; if (dx2<0) xtemp=-xtemp;
480             tools::Long ytemp=dx1a-dy2a; if (dy2<0) ytemp=-ytemp;
481             aRectP3.AdjustX(xtemp );
482             aRectP3.AdjustY(ytemp );
483         }
484     }
485     bRect=true;
486 }
487 
GetRectPoly() const488 XPolygon ImpPathCreateUser::GetRectPoly() const
489 {
490     XPolygon aXP(3);
491     aXP[0]=aRectP1; aXP.SetFlags(0,PolyFlags::Smooth);
492     aXP[1]=aRectP2;
493     if (aRectP3!=aRectP2) aXP[2]=aRectP3;
494     return aXP;
495 }
496 
497 class ImpPathForDragAndCreate
498 {
499     SdrPathObj&                 mrSdrPathObject;
500     XPolyPolygon                aPathPolygon;
501     SdrObjKind                  meObjectKind;
502     std::unique_ptr<ImpSdrPathDragData>
503                                 mpSdrPathDragData;
504     bool                        mbCreating;
505 
506 public:
507     explicit ImpPathForDragAndCreate(SdrPathObj& rSdrPathObject);
508 
509     // drag stuff
510     bool beginPathDrag( SdrDragStat const & rDrag )  const;
511     bool movePathDrag( SdrDragStat& rDrag ) const;
512     bool endPathDrag( SdrDragStat const & rDrag );
513     OUString getSpecialDragComment(const SdrDragStat& rDrag) const;
514     basegfx::B2DPolyPolygon getSpecialDragPoly(const SdrDragStat& rDrag) const;
515 
516     // create stuff
517     void BegCreate(SdrDragStat& rStat);
518     bool MovCreate(SdrDragStat& rStat);
519     bool EndCreate(SdrDragStat& rStat, SdrCreateCmd eCmd);
520     bool BckCreate(SdrDragStat const & rStat);
521     void BrkCreate(SdrDragStat& rStat);
522     PointerStyle GetCreatePointer() const;
523 
524     // helping stuff
IsClosed(SdrObjKind eKind)525     static bool IsClosed(SdrObjKind eKind) { return eKind==OBJ_POLY || eKind==OBJ_PATHPOLY || eKind==OBJ_PATHFILL || eKind==OBJ_FREEFILL || eKind==OBJ_SPLNFILL; }
IsFreeHand(SdrObjKind eKind)526     static bool IsFreeHand(SdrObjKind eKind) { return eKind==OBJ_FREELINE || eKind==OBJ_FREEFILL; }
IsBezier(SdrObjKind eKind)527     static bool IsBezier(SdrObjKind eKind) { return eKind==OBJ_PATHLINE || eKind==OBJ_PATHFILL; }
IsCreating() const528     bool IsCreating() const { return mbCreating; }
529 
530     // get the polygon
531     basegfx::B2DPolyPolygon TakeObjectPolyPolygon(const SdrDragStat& rDrag) const;
532     static basegfx::B2DPolyPolygon TakeDragPolyPolygon(const SdrDragStat& rDrag);
getModifiedPolyPolygon() const533     basegfx::B2DPolyPolygon getModifiedPolyPolygon() const { return  aPathPolygon.getB2DPolyPolygon(); }
534 };
535 
ImpPathForDragAndCreate(SdrPathObj & rSdrPathObject)536 ImpPathForDragAndCreate::ImpPathForDragAndCreate(SdrPathObj& rSdrPathObject)
537 :   mrSdrPathObject(rSdrPathObject),
538     aPathPolygon(rSdrPathObject.GetPathPoly()),
539     meObjectKind(mrSdrPathObject.meKind),
540     mbCreating(false)
541 {
542 }
543 
beginPathDrag(SdrDragStat const & rDrag) const544 bool ImpPathForDragAndCreate::beginPathDrag( SdrDragStat const & rDrag )  const
545 {
546     const SdrHdl* pHdl=rDrag.GetHdl();
547     if(!pHdl)
548         return false;
549 
550     bool bMultiPointDrag(true);
551 
552     if(aPathPolygon[static_cast<sal_uInt16>(pHdl->GetPolyNum())].IsControl(static_cast<sal_uInt16>(pHdl->GetPointNum())))
553         bMultiPointDrag = false;
554 
555     if(bMultiPointDrag)
556     {
557         const SdrMarkView& rMarkView = *rDrag.GetView();
558         const SdrHdlList& rHdlList = rMarkView.GetHdlList();
559         const size_t nHdlCount = rHdlList.GetHdlCount();
560         const SdrObject* pInteractionObject(nHdlCount && rHdlList.GetHdl(0) ? rHdlList.GetHdl(0)->GetObj() : nullptr);
561         sal_uInt32 nSelectedPoints(0);
562 
563         for(size_t a = 0; a < nHdlCount; ++a)
564         {
565             SdrHdl* pTestHdl = rHdlList.GetHdl(a);
566 
567             if(pTestHdl && pTestHdl->IsSelected() && pTestHdl->GetObj() == pInteractionObject)
568             {
569                 nSelectedPoints++;
570             }
571         }
572 
573         if(nSelectedPoints <= 1)
574             bMultiPointDrag = false;
575     }
576 
577     const_cast<ImpPathForDragAndCreate*>(this)->mpSdrPathDragData.reset( new ImpSdrPathDragData(mrSdrPathObject,*pHdl,bMultiPointDrag,rDrag) );
578 
579     if(!mpSdrPathDragData || !mpSdrPathDragData->bValid)
580     {
581         OSL_FAIL("ImpPathForDragAndCreate::BegDrag(): ImpSdrPathDragData is invalid.");
582         const_cast<ImpPathForDragAndCreate*>(this)->mpSdrPathDragData.reset();
583         return false;
584     }
585 
586     return true;
587 }
588 
movePathDrag(SdrDragStat & rDrag) const589 bool ImpPathForDragAndCreate::movePathDrag( SdrDragStat& rDrag ) const
590 {
591     if(!mpSdrPathDragData || !mpSdrPathDragData->bValid)
592     {
593         OSL_FAIL("ImpPathForDragAndCreate::MovDrag(): ImpSdrPathDragData is invalid.");
594         return false;
595     }
596 
597     if(mpSdrPathDragData->IsMultiPointDrag())
598     {
599         Point aDelta(rDrag.GetNow() - rDrag.GetStart());
600 
601         if(aDelta.X() || aDelta.Y())
602         {
603             for(SdrHdl* pHandle : mpSdrPathDragData->maHandles)
604             {
605                 const sal_uInt16 nPolyIndex(static_cast<sal_uInt16>(pHandle->GetPolyNum()));
606                 const sal_uInt16 nPointIndex(static_cast<sal_uInt16>(pHandle->GetPointNum()));
607                 const XPolygon& rOrig = mpSdrPathDragData->maOrig[nPolyIndex];
608                 XPolygon& rMove = mpSdrPathDragData->maMove[nPolyIndex];
609                 const sal_uInt16 nPointCount(rOrig.GetPointCount());
610                 bool bClosed(rOrig[0] == rOrig[nPointCount-1]);
611 
612                 // move point itself
613                 rMove[nPointIndex] = rOrig[nPointIndex] + aDelta;
614 
615                 // when point is first and poly closed, move close point, too.
616                 if(nPointCount > 0 && !nPointIndex && bClosed)
617                 {
618                     rMove[nPointCount - 1] = rOrig[nPointCount - 1] + aDelta;
619 
620                     // when moving the last point it may be necessary to move the
621                     // control point in front of this one, too.
622                     if(nPointCount > 1 && rOrig.IsControl(nPointCount - 2))
623                         rMove[nPointCount - 2] = rOrig[nPointCount - 2] + aDelta;
624                 }
625 
626                 // is a control point before this?
627                 if(nPointIndex > 0 && rOrig.IsControl(nPointIndex - 1))
628                 {
629                     // Yes, move it, too
630                     rMove[nPointIndex - 1] = rOrig[nPointIndex - 1] + aDelta;
631                 }
632 
633                 // is a control point after this?
634                 if(nPointIndex + 1 < nPointCount && rOrig.IsControl(nPointIndex + 1))
635                 {
636                     // Yes, move it, too
637                     rMove[nPointIndex + 1] = rOrig[nPointIndex + 1] + aDelta;
638                 }
639             }
640         }
641     }
642     else
643     {
644         mpSdrPathDragData->ResetPoly(mrSdrPathObject);
645 
646         // copy certain data locally to use less code and have faster access times
647         bool bClosed           =mpSdrPathDragData->bClosed       ; // closed object?
648         sal_uInt16   nPnt          =mpSdrPathDragData->nPnt          ; // number of point in the above polygon
649         bool bBegPnt           =mpSdrPathDragData->bBegPnt       ; // dragged point is first point of a Polyline
650         bool bEndPnt           =mpSdrPathDragData->bEndPnt       ; // dragged point is last point of a Polyline
651         sal_uInt16   nPrevPnt      =mpSdrPathDragData->nPrevPnt      ; // index of previous point
652         sal_uInt16   nNextPnt      =mpSdrPathDragData->nNextPnt      ; // index of next point
653         bool bPrevIsBegPnt     =mpSdrPathDragData->bPrevIsBegPnt ; // previous point is first point of a Polyline
654         bool bNextIsEndPnt     =mpSdrPathDragData->bNextIsEndPnt ; // next point is last point of a Polyline
655         sal_uInt16   nPrevPrevPnt  =mpSdrPathDragData->nPrevPrevPnt  ; // index of the point before the previous point
656         sal_uInt16   nNextNextPnt  =mpSdrPathDragData->nNextNextPnt  ; // index if the point after the next point
657         bool bControl          =mpSdrPathDragData->bControl      ; // point is a control point
658         bool bIsNextControl    =mpSdrPathDragData->bIsNextControl; // point is a control point after a support point
659         bool bPrevIsControl    =mpSdrPathDragData->bPrevIsControl; // if nPnt is a support point: there's a control point before
660         bool bNextIsControl    =mpSdrPathDragData->bNextIsControl; // if nPnt is a support point: there's a control point after
661 
662         // Ortho for lines/polygons: keep angle
663         if (!bControl && rDrag.GetView()!=nullptr && rDrag.GetView()->IsOrtho()) {
664             bool bBigOrtho=rDrag.GetView()->IsBigOrtho();
665             Point  aPos(rDrag.GetNow());      // current position
666             Point  aPnt(mpSdrPathDragData->aXP[nPnt]);      // the dragged point
667             sal_uInt16 nPnt1=0xFFFF,nPnt2=0xFFFF; // its neighboring points
668             Point  aNewPos1,aNewPos2;         // new alternative for aPos
669             bool bPnt1 = false, bPnt2 = false; // are these valid alternatives?
670             if (!bClosed && mpSdrPathDragData->nPointCount>=2) { // minimum of 2 points for lines
671                 if (!bBegPnt) nPnt1=nPrevPnt;
672                 if (!bEndPnt) nPnt2=nNextPnt;
673             }
674             if (bClosed && mpSdrPathDragData->nPointCount>=3) { // minimum of 3 points for polygon
675                 nPnt1=nPrevPnt;
676                 nPnt2=nNextPnt;
677             }
678             if (nPnt1!=0xFFFF && !bPrevIsControl) {
679                 Point aPnt1=mpSdrPathDragData->aXP[nPnt1];
680                 tools::Long ndx0=aPnt.X()-aPnt1.X();
681                 tools::Long ndy0=aPnt.Y()-aPnt1.Y();
682                 bool bHLin=ndy0==0;
683                 bool bVLin=ndx0==0;
684                 if (!bHLin || !bVLin) {
685                     tools::Long ndx=aPos.X()-aPnt1.X();
686                     tools::Long ndy=aPos.Y()-aPnt1.Y();
687                     bPnt1=true;
688                     double nXFact=0; if (!bVLin) nXFact=static_cast<double>(ndx)/static_cast<double>(ndx0);
689                     double nYFact=0; if (!bHLin) nYFact=static_cast<double>(ndy)/static_cast<double>(ndy0);
690                     bool bHor=bHLin || (!bVLin && (nXFact>nYFact) ==bBigOrtho);
691                     bool bVer=bVLin || (!bHLin && (nXFact<=nYFact)==bBigOrtho);
692                     if (bHor) ndy=tools::Long(ndy0*nXFact);
693                     if (bVer) ndx=tools::Long(ndx0*nYFact);
694                     aNewPos1=aPnt1;
695                     aNewPos1.AdjustX(ndx );
696                     aNewPos1.AdjustY(ndy );
697                 }
698             }
699             if (nPnt2!=0xFFFF && !bNextIsControl) {
700                 Point aPnt2=mpSdrPathDragData->aXP[nPnt2];
701                 tools::Long ndx0=aPnt.X()-aPnt2.X();
702                 tools::Long ndy0=aPnt.Y()-aPnt2.Y();
703                 bool bHLin=ndy0==0;
704                 bool bVLin=ndx0==0;
705                 if (!bHLin || !bVLin) {
706                     tools::Long ndx=aPos.X()-aPnt2.X();
707                     tools::Long ndy=aPos.Y()-aPnt2.Y();
708                     bPnt2=true;
709                     double nXFact=0; if (!bVLin) nXFact=static_cast<double>(ndx)/static_cast<double>(ndx0);
710                     double nYFact=0; if (!bHLin) nYFact=static_cast<double>(ndy)/static_cast<double>(ndy0);
711                     bool bHor=bHLin || (!bVLin && (nXFact>nYFact) ==bBigOrtho);
712                     bool bVer=bVLin || (!bHLin && (nXFact<=nYFact)==bBigOrtho);
713                     if (bHor) ndy=tools::Long(ndy0*nXFact);
714                     if (bVer) ndx=tools::Long(ndx0*nYFact);
715                     aNewPos2=aPnt2;
716                     aNewPos2.AdjustX(ndx );
717                     aNewPos2.AdjustY(ndy );
718                 }
719             }
720             if (bPnt1 && bPnt2) { // both alternatives exist (and compete)
721                 BigInt nX1(aNewPos1.X()-aPos.X()); nX1*=nX1;
722                 BigInt nY1(aNewPos1.Y()-aPos.Y()); nY1*=nY1;
723                 BigInt nX2(aNewPos2.X()-aPos.X()); nX2*=nX2;
724                 BigInt nY2(aNewPos2.Y()-aPos.Y()); nY2*=nY2;
725                 nX1+=nY1; // correction distance to square
726                 nX2+=nY2; // correction distance to square
727                 // let the alternative that allows fewer correction win
728                 if (nX1<nX2) bPnt2=false; else bPnt1=false;
729             }
730             if (bPnt1) rDrag.SetNow(aNewPos1);
731             if (bPnt2) rDrag.SetNow(aNewPos2);
732         }
733         rDrag.SetActionRect(tools::Rectangle(rDrag.GetNow(),rDrag.GetNow()));
734 
735         // specially for IBM: Eliminate points if both adjoining lines form near 180 degrees angle anyway
736         if (!bControl && rDrag.GetView()!=nullptr && rDrag.GetView()->IsEliminatePolyPoints() &&
737             !bBegPnt && !bEndPnt && !bPrevIsControl && !bNextIsControl)
738         {
739             Point aPt(mpSdrPathDragData->aXP[nNextPnt]);
740             aPt-=rDrag.GetNow();
741             Degree100 nAngle1=GetAngle(aPt);
742             aPt=rDrag.GetNow();
743             aPt-=mpSdrPathDragData->aXP[nPrevPnt];
744             Degree100 nAngle2=GetAngle(aPt);
745             Degree100 nDiff=nAngle1-nAngle2;
746             nDiff=abs(nDiff);
747             mpSdrPathDragData->bEliminate=nDiff<=rDrag.GetView()->GetEliminatePolyPointLimitAngle();
748             if (mpSdrPathDragData->bEliminate) { // adapt position, Smooth is true for the ends
749                 aPt=mpSdrPathDragData->aXP[nNextPnt];
750                 aPt+=mpSdrPathDragData->aXP[nPrevPnt];
751                 aPt/=2;
752                 rDrag.SetNow(aPt);
753             }
754         }
755 
756         // we dragged by this distance
757         Point aDiff(rDrag.GetNow()); aDiff-=mpSdrPathDragData->aXP[nPnt];
758 
759         /* There are 8 possible cases:
760               X      1. A control point neither on the left nor on the right.
761            o--X--o   2. There are control points on the left and the right, we are dragging a support point.
762            o--X      3. There is a control point on the left, we are dragging a support point.
763               X--o   4. There is a control point on the right, we are dragging a support point.
764            x--O--o   5. There are control points on the left and the right, we are dragging the left one.
765            x--O      6. There is a control point on the left, we are dragging it.
766            o--O--x   7. There are control points on the left and the right, we are dragging the right one.
767               O--x   8. There is a control point on the right, we are dragging it.
768            Note: modifying a line (not a curve!) might create a curve on the other end of the line
769            if Smooth is set there (with control points aligned to line).
770         */
771 
772         mpSdrPathDragData->aXP[nPnt]+=aDiff;
773 
774         // now check symmetric plus handles
775         if (bControl) { // cases 5,6,7,8
776             sal_uInt16   nSt; // the associated support point
777             sal_uInt16   nFix;  // the opposing control point
778             if (bIsNextControl) { // if the next one is a control point, the on before has to be a support point
779                 nSt=nPrevPnt;
780                 nFix=nPrevPrevPnt;
781             } else {
782                 nSt=nNextPnt;
783                 nFix=nNextNextPnt;
784             }
785             if (mpSdrPathDragData->aXP.IsSmooth(nSt)) {
786                 mpSdrPathDragData->aXP.CalcSmoothJoin(nSt,nPnt,nFix);
787             }
788         }
789 
790         if (!bControl) { // Cases 1,2,3,4. In case 1, nothing happens; in cases 3 and 4, there is more following below.
791             // move both control points
792             if (bPrevIsControl) mpSdrPathDragData->aXP[nPrevPnt]+=aDiff;
793             if (bNextIsControl) mpSdrPathDragData->aXP[nNextPnt]+=aDiff;
794             // align control point to line, if appropriate
795             if (mpSdrPathDragData->aXP.IsSmooth(nPnt)) {
796                 if (bPrevIsControl && !bNextIsControl && !bEndPnt) { // case 3
797                     mpSdrPathDragData->aXP.CalcSmoothJoin(nPnt,nNextPnt,nPrevPnt);
798                 }
799                 if (bNextIsControl && !bPrevIsControl && !bBegPnt) { // case 4
800                     mpSdrPathDragData->aXP.CalcSmoothJoin(nPnt,nPrevPnt,nNextPnt);
801                 }
802             }
803             // Now check the other ends of the line (nPnt+-1). If there is a
804             // curve (IsControl(nPnt+-2)) with SmoothJoin (nPnt+-1), the
805             // associated control point (nPnt+-2) has to be adapted.
806             if (!bBegPnt && !bPrevIsControl && !bPrevIsBegPnt && mpSdrPathDragData->aXP.IsSmooth(nPrevPnt)) {
807                 if (mpSdrPathDragData->aXP.IsControl(nPrevPrevPnt)) {
808                     mpSdrPathDragData->aXP.CalcSmoothJoin(nPrevPnt,nPnt,nPrevPrevPnt);
809                 }
810             }
811             if (!bEndPnt && !bNextIsControl && !bNextIsEndPnt && mpSdrPathDragData->aXP.IsSmooth(nNextPnt)) {
812                 if (mpSdrPathDragData->aXP.IsControl(nNextNextPnt)) {
813                     mpSdrPathDragData->aXP.CalcSmoothJoin(nNextPnt,nPnt,nNextNextPnt);
814                 }
815             }
816         }
817     }
818 
819     return true;
820 }
821 
endPathDrag(SdrDragStat const & rDrag)822 bool ImpPathForDragAndCreate::endPathDrag(SdrDragStat const & rDrag)
823 {
824     Point aLinePt1;
825     Point aLinePt2;
826     bool bLineGlueMirror(OBJ_LINE == meObjectKind);
827     if (bLineGlueMirror) {
828         XPolygon& rXP=aPathPolygon[0];
829         aLinePt1=rXP[0];
830         aLinePt2=rXP[1];
831     }
832 
833     if(!mpSdrPathDragData || !mpSdrPathDragData->bValid)
834     {
835         OSL_FAIL("ImpPathForDragAndCreate::MovDrag(): ImpSdrPathDragData is invalid.");
836         return false;
837     }
838 
839     if(mpSdrPathDragData->IsMultiPointDrag())
840     {
841         aPathPolygon = mpSdrPathDragData->maMove;
842     }
843     else
844     {
845         const SdrHdl* pHdl=rDrag.GetHdl();
846 
847         // reference the polygon
848         XPolygon& rXP=aPathPolygon[static_cast<sal_uInt16>(pHdl->GetPolyNum())];
849 
850         // the 5 points that might have changed
851         if (!mpSdrPathDragData->bPrevIsBegPnt) rXP[mpSdrPathDragData->nPrevPrevPnt0]=mpSdrPathDragData->aXP[mpSdrPathDragData->nPrevPrevPnt];
852         if (!mpSdrPathDragData->bNextIsEndPnt) rXP[mpSdrPathDragData->nNextNextPnt0]=mpSdrPathDragData->aXP[mpSdrPathDragData->nNextNextPnt];
853         if (!mpSdrPathDragData->bBegPnt)       rXP[mpSdrPathDragData->nPrevPnt0]    =mpSdrPathDragData->aXP[mpSdrPathDragData->nPrevPnt];
854         if (!mpSdrPathDragData->bEndPnt)       rXP[mpSdrPathDragData->nNextPnt0]    =mpSdrPathDragData->aXP[mpSdrPathDragData->nNextPnt];
855         rXP[mpSdrPathDragData->nPnt0]        =mpSdrPathDragData->aXP[mpSdrPathDragData->nPnt];
856 
857         // for closed objects: last point has to be equal to first point
858         if (mpSdrPathDragData->bClosed) rXP[rXP.GetPointCount()-1]=rXP[0];
859 
860         if (mpSdrPathDragData->bEliminate)
861         {
862             basegfx::B2DPolyPolygon aTempPolyPolygon(aPathPolygon.getB2DPolyPolygon());
863             sal_uInt32 nPoly,nPnt;
864 
865             if(PolyPolygonEditor::GetRelativePolyPoint(aTempPolyPolygon, rDrag.GetHdl()->GetSourceHdlNum(), nPoly, nPnt))
866             {
867                 basegfx::B2DPolygon aCandidate(aTempPolyPolygon.getB2DPolygon(nPoly));
868                 aCandidate.remove(nPnt);
869 
870                 if(aCandidate.count() < 2)
871                 {
872                     aTempPolyPolygon.remove(nPoly);
873                 }
874                 else
875                 {
876                     aTempPolyPolygon.setB2DPolygon(nPoly, aCandidate);
877                 }
878             }
879 
880             aPathPolygon = XPolyPolygon(aTempPolyPolygon);
881         }
882 
883         // adapt angle for text beneath a simple line
884         if (bLineGlueMirror)
885         {
886             Point aLinePt1_(aPathPolygon[0][0]);
887             Point aLinePt2_(aPathPolygon[0][1]);
888             bool bXMirr=(aLinePt1_.X()>aLinePt2_.X())!=(aLinePt1.X()>aLinePt2.X());
889             bool bYMirr=(aLinePt1_.Y()>aLinePt2_.Y())!=(aLinePt1.Y()>aLinePt2.Y());
890             if (bXMirr || bYMirr) {
891                 Point aRef1(mrSdrPathObject.GetSnapRect().Center());
892                 if (bXMirr) {
893                     Point aRef2(aRef1);
894                     aRef2.AdjustY( 1 );
895                     mrSdrPathObject.NbcMirrorGluePoints(aRef1,aRef2);
896                 }
897                 if (bYMirr) {
898                     Point aRef2(aRef1);
899                     aRef2.AdjustX( 1 );
900                     mrSdrPathObject.NbcMirrorGluePoints(aRef1,aRef2);
901                 }
902             }
903         }
904     }
905 
906     mpSdrPathDragData.reset();
907 
908     return true;
909 }
910 
getSpecialDragComment(const SdrDragStat & rDrag) const911 OUString ImpPathForDragAndCreate::getSpecialDragComment(const SdrDragStat& rDrag) const
912 {
913     OUString aStr;
914     const SdrHdl* pHdl = rDrag.GetHdl();
915     const bool bCreateComment(rDrag.GetView() && &mrSdrPathObject == rDrag.GetView()->GetCreateObj());
916 
917     if(bCreateComment && rDrag.GetUser())
918     {
919         // #i103058# re-add old creation comment mode
920         const ImpPathCreateUser* pU = static_cast<const ImpPathCreateUser*>(rDrag.GetUser());
921         const SdrObjKind eOriginalKind(meObjectKind);
922         mrSdrPathObject.meKind = pU->eCurrentKind;
923         aStr = mrSdrPathObject.ImpGetDescriptionStr(STR_ViewCreateObj);
924         mrSdrPathObject.meKind = eOriginalKind;
925 
926         Point aPrev(rDrag.GetPrev());
927         Point aNow(rDrag.GetNow());
928 
929         if(pU->bLine)
930             aNow = pU->aLineEnd;
931 
932         aNow -= aPrev;
933         aStr += " (";
934 
935         if(pU->bCircle)
936         {
937             aStr += SdrModel::GetAngleString(abs(pU->nCircRelAngle))
938                     + " r="
939                     + mrSdrPathObject.getSdrModelFromSdrObject().GetMetricString(pU->nCircRadius, true);
940         }
941 
942         aStr += "dx="
943                 + mrSdrPathObject.getSdrModelFromSdrObject().GetMetricString(aNow.X(), true)
944                 + " dy="
945                 + mrSdrPathObject.getSdrModelFromSdrObject().GetMetricString(aNow.Y(), true);
946 
947         if(!IsFreeHand(meObjectKind))
948         {
949             sal_Int32 nLen(GetLen(aNow));
950             Degree100 nAngle(GetAngle(aNow));
951             aStr += "  l="
952                     + mrSdrPathObject.getSdrModelFromSdrObject().GetMetricString(nLen, true)
953                     + " "
954                     + SdrModel::GetAngleString(nAngle);
955         }
956 
957         aStr += ")";
958     }
959     else if(!pHdl)
960     {
961         // #i103058# fallback when no model and/or Handle, both needed
962         // for else-path
963         aStr = mrSdrPathObject.ImpGetDescriptionStr(STR_DragPathObj);
964     }
965     else
966     {
967         // #i103058# standard for modification; model and handle needed
968         ImpSdrPathDragData* pDragData = mpSdrPathDragData.get();
969 
970         if(!pDragData)
971         {
972             // getSpecialDragComment is also used from create, so fallback to GetUser()
973             // when mpSdrPathDragData is not set
974             pDragData = static_cast<ImpSdrPathDragData*>(rDrag.GetUser());
975         }
976 
977         if(!pDragData)
978         {
979             OSL_FAIL("ImpPathForDragAndCreate::MovDrag(): ImpSdrPathDragData is invalid.");
980             return OUString();
981         }
982 
983         if(!pDragData->IsMultiPointDrag() && pDragData->bEliminate)
984         {
985             // point of ...
986             aStr = mrSdrPathObject.ImpGetDescriptionStr(STR_ViewMarkedPoint);
987 
988             // delete %O
989             OUString aStr2(SvxResId(STR_EditDelete));
990 
991             // UNICODE: delete point of ...
992             aStr2 = aStr2.replaceFirst("%1", aStr);
993 
994             return aStr2;
995         }
996 
997         // dx=0.00 dy=0.00                -- both sides bezier
998         // dx=0.00 dy=0.00  l=0.00 0.00\302\260  -- one bezier/lever on one side, a start, or an ending
999         // dx=0.00 dy=0.00  l=0.00 0.00\302\260 / l=0.00 0.00\302\260 -- in between
1000         Point aBeg(rDrag.GetStart());
1001         Point aNow(rDrag.GetNow());
1002 
1003         aStr.clear();
1004         aStr += "dx="
1005                 + mrSdrPathObject.getSdrModelFromSdrObject().GetMetricString(aNow.X() - aBeg.X(), true)
1006                 + " dy="
1007                 + mrSdrPathObject.getSdrModelFromSdrObject().GetMetricString(aNow.Y() - aBeg.Y(), true);
1008 
1009         if(!pDragData->IsMultiPointDrag())
1010         {
1011             sal_uInt16 nPntNum(static_cast<sal_uInt16>(pHdl->GetPointNum()));
1012             const XPolygon& rXPoly = aPathPolygon[static_cast<sal_uInt16>(rDrag.GetHdl()->GetPolyNum())];
1013             sal_uInt16 nPointCount(rXPoly.GetPointCount());
1014             bool bClose(IsClosed(meObjectKind));
1015 
1016             if(bClose)
1017                 nPointCount--;
1018 
1019             if(pHdl->IsPlusHdl())
1020             {
1021                 // lever
1022                 sal_uInt16 nRef(nPntNum);
1023 
1024                 if(rXPoly.IsControl(nPntNum + 1))
1025                     nRef--;
1026                 else
1027                     nRef++;
1028 
1029                 aNow -= rXPoly[nRef];
1030 
1031                 sal_Int32 nLen(GetLen(aNow));
1032                 Degree100 nAngle(GetAngle(aNow));
1033                 aStr += "  l="
1034                         + mrSdrPathObject.getSdrModelFromSdrObject().GetMetricString(nLen, true)
1035                         + " "
1036                         + SdrModel::GetAngleString(nAngle);
1037             }
1038             else if(nPointCount > 1)
1039             {
1040                 sal_uInt16 nPntMax(nPointCount - 1);
1041                 bool bIsClosed(IsClosed(meObjectKind));
1042                 bool bPt1(nPntNum > 0);
1043                 bool bPt2(nPntNum < nPntMax);
1044 
1045                 if(bIsClosed && nPointCount > 2)
1046                 {
1047                     bPt1 = true;
1048                     bPt2 = true;
1049                 }
1050 
1051                 sal_uInt16 nPt1,nPt2;
1052 
1053                 if(nPntNum > 0)
1054                     nPt1 = nPntNum - 1;
1055                 else
1056                     nPt1 = nPntMax;
1057 
1058                 if(nPntNum < nPntMax)
1059                     nPt2 = nPntNum + 1;
1060                 else
1061                     nPt2 = 0;
1062 
1063                 if(bPt1 && rXPoly.IsControl(nPt1))
1064                     bPt1 = false; // don't display
1065 
1066                 if(bPt2 && rXPoly.IsControl(nPt2))
1067                     bPt2 = false; // of bezier data
1068 
1069                 if(bPt1)
1070                 {
1071                     Point aPt(aNow);
1072                     aPt -= rXPoly[nPt1];
1073 
1074                     sal_Int32 nLen(GetLen(aPt));
1075                     Degree100 nAngle(GetAngle(aPt));
1076                     aStr += "  l="
1077                             + mrSdrPathObject.getSdrModelFromSdrObject().GetMetricString(nLen, true)
1078                             + " "
1079                             + SdrModel::GetAngleString(nAngle);
1080                 }
1081 
1082                 if(bPt2)
1083                 {
1084                     if(bPt1)
1085                         aStr += " / ";
1086                     else
1087                         aStr += "  ";
1088 
1089                     Point aPt(aNow);
1090                     aPt -= rXPoly[nPt2];
1091 
1092                     sal_Int32 nLen(GetLen(aPt));
1093                     Degree100 nAngle(GetAngle(aPt));
1094                     aStr += "l="
1095                             + mrSdrPathObject.getSdrModelFromSdrObject().GetMetricString(nLen, true)
1096                             + " "
1097                             + SdrModel::GetAngleString(nAngle);
1098                 }
1099             }
1100         }
1101     }
1102 
1103     return aStr;
1104 }
1105 
getSpecialDragPoly(const SdrDragStat & rDrag) const1106 basegfx::B2DPolyPolygon ImpPathForDragAndCreate::getSpecialDragPoly(const SdrDragStat& rDrag) const
1107 {
1108     if(!mpSdrPathDragData || !mpSdrPathDragData->bValid)
1109     {
1110         OSL_FAIL("ImpPathForDragAndCreate::MovDrag(): ImpSdrPathDragData is invalid.");
1111         return basegfx::B2DPolyPolygon();
1112     }
1113 
1114     XPolyPolygon aRetval;
1115 
1116     if(mpSdrPathDragData->IsMultiPointDrag())
1117     {
1118         aRetval.Insert(mpSdrPathDragData->maMove);
1119     }
1120     else
1121     {
1122         const XPolygon& rXP=aPathPolygon[static_cast<sal_uInt16>(rDrag.GetHdl()->GetPolyNum())];
1123         if (rXP.GetPointCount()<=2) {
1124             XPolygon aXPoly(rXP);
1125             aXPoly[static_cast<sal_uInt16>(rDrag.GetHdl()->GetPointNum())]=rDrag.GetNow();
1126             aRetval.Insert(std::move(aXPoly));
1127             return aRetval.getB2DPolyPolygon();
1128         }
1129         // copy certain data locally to use less code and have faster access times
1130         bool bClosed           =mpSdrPathDragData->bClosed       ; // closed object?
1131         sal_uInt16 nPointCount = mpSdrPathDragData->nPointCount; // number of points
1132         sal_uInt16   nPnt          =mpSdrPathDragData->nPnt          ; // number of points in the polygon
1133         bool bBegPnt           =mpSdrPathDragData->bBegPnt       ; // dragged point is the first point of a Polyline
1134         bool bEndPnt           =mpSdrPathDragData->bEndPnt       ; // dragged point is the last point of a Polyline
1135         sal_uInt16   nPrevPnt      =mpSdrPathDragData->nPrevPnt      ; // index of the previous point
1136         sal_uInt16   nNextPnt      =mpSdrPathDragData->nNextPnt      ; // index of the next point
1137         bool bPrevIsBegPnt     =mpSdrPathDragData->bPrevIsBegPnt ; // previous point is first point of a Polyline
1138         bool bNextIsEndPnt     =mpSdrPathDragData->bNextIsEndPnt ; // next point is last point of a Polyline
1139         sal_uInt16   nPrevPrevPnt  =mpSdrPathDragData->nPrevPrevPnt  ; // index of the point before the previous point
1140         sal_uInt16   nNextNextPnt  =mpSdrPathDragData->nNextNextPnt  ; // index of the point after the last point
1141         bool bControl          =mpSdrPathDragData->bControl      ; // point is a control point
1142         bool bIsNextControl    =mpSdrPathDragData->bIsNextControl; //point is a control point after a support point
1143         bool bPrevIsControl    =mpSdrPathDragData->bPrevIsControl; // if nPnt is a support point: there's a control point before
1144         bool bNextIsControl    =mpSdrPathDragData->bNextIsControl; // if nPnt is a support point: there's a control point after
1145         XPolygon aXPoly(mpSdrPathDragData->aXP);
1146         XPolygon aLine1(2);
1147         XPolygon aLine2(2);
1148         XPolygon aLine3(2);
1149         XPolygon aLine4(2);
1150         if (bControl) {
1151             aLine1[1]=mpSdrPathDragData->aXP[nPnt];
1152             if (bIsNextControl) { // is this a control point after the support point?
1153                 aLine1[0]=mpSdrPathDragData->aXP[nPrevPnt];
1154                 aLine2[0]=mpSdrPathDragData->aXP[nNextNextPnt];
1155                 aLine2[1]=mpSdrPathDragData->aXP[nNextPnt];
1156                 if (mpSdrPathDragData->aXP.IsSmooth(nPrevPnt) && !bPrevIsBegPnt && mpSdrPathDragData->aXP.IsControl(nPrevPrevPnt)) {
1157                     aXPoly.Insert(0,rXP[mpSdrPathDragData->nPrevPrevPnt0-1],PolyFlags::Control);
1158                     aXPoly.Insert(0,rXP[mpSdrPathDragData->nPrevPrevPnt0-2],PolyFlags::Normal);
1159                     // leverage lines for the opposing curve segment
1160                     aLine3[0]=mpSdrPathDragData->aXP[nPrevPnt];
1161                     aLine3[1]=mpSdrPathDragData->aXP[nPrevPrevPnt];
1162                     aLine4[0]=rXP[mpSdrPathDragData->nPrevPrevPnt0-2];
1163                     aLine4[1]=rXP[mpSdrPathDragData->nPrevPrevPnt0-1];
1164                 } else {
1165                     aXPoly.Remove(0,1);
1166                 }
1167             } else { // else this is a control point before a support point
1168                 aLine1[0]=mpSdrPathDragData->aXP[nNextPnt];
1169                 aLine2[0]=mpSdrPathDragData->aXP[nPrevPrevPnt];
1170                 aLine2[1]=mpSdrPathDragData->aXP[nPrevPnt];
1171                 if (mpSdrPathDragData->aXP.IsSmooth(nNextPnt) && !bNextIsEndPnt && mpSdrPathDragData->aXP.IsControl(nNextNextPnt)) {
1172                     aXPoly.Insert(XPOLY_APPEND,rXP[mpSdrPathDragData->nNextNextPnt0+1],PolyFlags::Control);
1173                     aXPoly.Insert(XPOLY_APPEND,rXP[mpSdrPathDragData->nNextNextPnt0+2],PolyFlags::Normal);
1174                     // leverage lines for the opposing curve segment
1175                     aLine3[0]=mpSdrPathDragData->aXP[nNextPnt];
1176                     aLine3[1]=mpSdrPathDragData->aXP[nNextNextPnt];
1177                     aLine4[0]=rXP[mpSdrPathDragData->nNextNextPnt0+2];
1178                     aLine4[1]=rXP[mpSdrPathDragData->nNextNextPnt0+1];
1179                 } else {
1180                     aXPoly.Remove(aXPoly.GetPointCount()-1,1);
1181                 }
1182             }
1183         } else { // else is not a control point
1184             if (mpSdrPathDragData->bEliminate) {
1185                 aXPoly.Remove(2,1);
1186             }
1187             if (bPrevIsControl) aXPoly.Insert(0,rXP[mpSdrPathDragData->nPrevPrevPnt0-1],PolyFlags::Normal);
1188             else if (!bBegPnt && !bPrevIsBegPnt && mpSdrPathDragData->aXP.IsControl(nPrevPrevPnt)) {
1189                 aXPoly.Insert(0,rXP[mpSdrPathDragData->nPrevPrevPnt0-1],PolyFlags::Control);
1190                 aXPoly.Insert(0,rXP[mpSdrPathDragData->nPrevPrevPnt0-2],PolyFlags::Normal);
1191             } else {
1192                 aXPoly.Remove(0,1);
1193                 if (bBegPnt) aXPoly.Remove(0,1);
1194             }
1195             if (bNextIsControl) aXPoly.Insert(XPOLY_APPEND,rXP[mpSdrPathDragData->nNextNextPnt0+1],PolyFlags::Normal);
1196             else if (!bEndPnt && !bNextIsEndPnt && mpSdrPathDragData->aXP.IsControl(nNextNextPnt)) {
1197                 aXPoly.Insert(XPOLY_APPEND,rXP[mpSdrPathDragData->nNextNextPnt0+1],PolyFlags::Control);
1198                 aXPoly.Insert(XPOLY_APPEND,rXP[mpSdrPathDragData->nNextNextPnt0+2],PolyFlags::Normal);
1199             } else {
1200                 aXPoly.Remove(aXPoly.GetPointCount()-1,1);
1201                 if (bEndPnt) aXPoly.Remove(aXPoly.GetPointCount()-1,1);
1202             }
1203             if (bClosed) { // "pear problem": 2 lines, 1 curve, everything smoothed, a point between both lines is dragged
1204                 if (aXPoly.GetPointCount()>nPointCount && aXPoly.IsControl(1)) {
1205                     sal_uInt16 a=aXPoly.GetPointCount();
1206                     aXPoly[a-2]=aXPoly[2]; aXPoly.SetFlags(a-2,aXPoly.GetFlags(2));
1207                     aXPoly[a-1]=aXPoly[3]; aXPoly.SetFlags(a-1,aXPoly.GetFlags(3));
1208                     aXPoly.Remove(0,3);
1209                 }
1210             }
1211         }
1212         aRetval.Insert(std::move(aXPoly));
1213         if (aLine1.GetPointCount()>1) aRetval.Insert(std::move(aLine1));
1214         if (aLine2.GetPointCount()>1) aRetval.Insert(std::move(aLine2));
1215         if (aLine3.GetPointCount()>1) aRetval.Insert(std::move(aLine3));
1216         if (aLine4.GetPointCount()>1) aRetval.Insert(std::move(aLine4));
1217     }
1218 
1219     return aRetval.getB2DPolyPolygon();
1220 }
1221 
BegCreate(SdrDragStat & rStat)1222 void ImpPathForDragAndCreate::BegCreate(SdrDragStat& rStat)
1223 {
1224     bool bFreeHand(IsFreeHand(meObjectKind));
1225     rStat.SetNoSnap(bFreeHand);
1226     rStat.SetOrtho8Possible();
1227     aPathPolygon.Clear();
1228     mbCreating=true;
1229     bool bMakeStartPoint = true;
1230     SdrView* pView=rStat.GetView();
1231     if (pView!=nullptr && pView->IsUseIncompatiblePathCreateInterface() &&
1232         (meObjectKind==OBJ_POLY || meObjectKind==OBJ_PLIN || meObjectKind==OBJ_PATHLINE || meObjectKind==OBJ_PATHFILL)) {
1233         bMakeStartPoint = false;
1234     }
1235     aPathPolygon.Insert(XPolygon());
1236     aPathPolygon[0][0]=rStat.GetStart();
1237     if (bMakeStartPoint) {
1238         aPathPolygon[0][1]=rStat.GetNow();
1239     }
1240     std::unique_ptr<ImpPathCreateUser> pU(new ImpPathCreateUser);
1241     pU->eStartKind=meObjectKind;
1242     pU->eCurrentKind=meObjectKind;
1243     rStat.SetUser(std::move(pU));
1244 }
1245 
MovCreate(SdrDragStat & rStat)1246 bool ImpPathForDragAndCreate::MovCreate(SdrDragStat& rStat)
1247 {
1248     ImpPathCreateUser* pU=static_cast<ImpPathCreateUser*>(rStat.GetUser());
1249     SdrView* pView=rStat.GetView();
1250     XPolygon& rXPoly=aPathPolygon[aPathPolygon.Count()-1];
1251     if (pView!=nullptr && pView->IsCreateMode()) {
1252         // switch to different CreateTool, if appropriate
1253         SdrObjKind nIdent;
1254         SdrInventor nInvent;
1255         pView->TakeCurrentObj(nIdent,nInvent);
1256         if (nInvent==SdrInventor::Default && pU->eCurrentKind != nIdent) {
1257             SdrObjKind eNewKind = nIdent;
1258             switch (eNewKind) {
1259                 case OBJ_CARC:
1260                 case OBJ_CIRC:
1261                 case OBJ_CCUT:
1262                 case OBJ_SECT:
1263                     eNewKind=OBJ_CARC;
1264                     [[fallthrough]];
1265                 case OBJ_RECT:
1266                 case OBJ_LINE:
1267                 case OBJ_PLIN:
1268                 case OBJ_POLY:
1269                 case OBJ_PATHLINE:
1270                 case OBJ_PATHFILL:
1271                 case OBJ_FREELINE:
1272                 case OBJ_FREEFILL:
1273                 case OBJ_SPLNLINE:
1274                 case OBJ_SPLNFILL: {
1275                     pU->eCurrentKind=eNewKind;
1276                     pU->bMixedCreate=true;
1277                     pU->nBezierStartPoint=rXPoly.GetPointCount();
1278                     if (pU->nBezierStartPoint>0) pU->nBezierStartPoint--;
1279                 } break;
1280                 default: break;
1281             } // switch
1282         }
1283     }
1284     sal_uInt16 nCurrentPoint=rXPoly.GetPointCount();
1285     if (aPathPolygon.Count()>1 && rStat.IsMouseDown() && nCurrentPoint<2) {
1286         rXPoly[0]=rStat.GetPos0();
1287         rXPoly[1]=rStat.GetNow();
1288         nCurrentPoint=2;
1289     }
1290     if (nCurrentPoint==0) {
1291         rXPoly[0]=rStat.GetPos0();
1292     } else nCurrentPoint--;
1293     bool bFreeHand=IsFreeHand(pU->eCurrentKind);
1294     rStat.SetNoSnap(bFreeHand);
1295     rStat.SetOrtho8Possible(pU->eCurrentKind!=OBJ_CARC && pU->eCurrentKind!=OBJ_RECT && (!pU->bMixedCreate || pU->eCurrentKind!=OBJ_LINE));
1296     rXPoly[nCurrentPoint]=rStat.GetNow();
1297     if (!pU->bMixedCreate && pU->eStartKind==OBJ_LINE && rXPoly.GetPointCount()>=1) {
1298         Point aPt(rStat.GetStart());
1299         if (pView!=nullptr && pView->IsCreate1stPointAsCenter()) {
1300             aPt+=aPt;
1301             aPt-=rStat.GetNow();
1302         }
1303         rXPoly[0]=aPt;
1304     }
1305     OutputDevice* pOut=pView==nullptr ? nullptr : pView->GetFirstOutputDevice();
1306     if (bFreeHand) {
1307         if (pU->nBezierStartPoint>nCurrentPoint) pU->nBezierStartPoint=nCurrentPoint;
1308         if (rStat.IsMouseDown() && nCurrentPoint>0) {
1309             // don't allow two consecutive points to occupy too similar positions
1310             tools::Long nMinDist=1;
1311             if (pView!=nullptr) nMinDist=pView->GetFreeHandMinDistPix();
1312             if (pOut!=nullptr) nMinDist=pOut->PixelToLogic(Size(nMinDist,0)).Width();
1313             if (nMinDist<1) nMinDist=1;
1314 
1315             Point aPt0(rXPoly[nCurrentPoint-1]);
1316             Point aPt1(rStat.GetNow());
1317             tools::Long dx=aPt0.X()-aPt1.X(); if (dx<0) dx=-dx;
1318             tools::Long dy=aPt0.Y()-aPt1.Y(); if (dy<0) dy=-dy;
1319             if (dx<nMinDist && dy<nMinDist) return false;
1320 
1321             // TODO: the following is copied from EndCreate (with a few smaller modifications)
1322             // and should be combined into a method with the code there.
1323 
1324             if (nCurrentPoint-pU->nBezierStartPoint>=3 && ((nCurrentPoint-pU->nBezierStartPoint)%3)==0) {
1325                 rXPoly.PointsToBezier(nCurrentPoint-3);
1326                 rXPoly.SetFlags(nCurrentPoint-1,PolyFlags::Control);
1327                 rXPoly.SetFlags(nCurrentPoint-2,PolyFlags::Control);
1328 
1329                 if (nCurrentPoint>=6 && rXPoly.IsControl(nCurrentPoint-4)) {
1330                     rXPoly.CalcTangent(nCurrentPoint-3,nCurrentPoint-4,nCurrentPoint-2);
1331                     rXPoly.SetFlags(nCurrentPoint-3,PolyFlags::Smooth);
1332                 }
1333             }
1334             rXPoly[nCurrentPoint+1]=rStat.GetNow();
1335             rStat.NextPoint();
1336         } else {
1337             pU->nBezierStartPoint=nCurrentPoint;
1338         }
1339     }
1340 
1341     pU->ResetFormFlags();
1342     if (IsBezier(pU->eCurrentKind)) {
1343         if (nCurrentPoint>=2) {
1344             pU->CalcBezier(rXPoly[nCurrentPoint-1],rXPoly[nCurrentPoint],rXPoly[nCurrentPoint-1]-rXPoly[nCurrentPoint-2],rStat.IsMouseDown());
1345         } else if (pU->bBezHasCtrl0) {
1346             pU->CalcBezier(rXPoly[nCurrentPoint-1],rXPoly[nCurrentPoint],pU->aBezControl0-rXPoly[nCurrentPoint-1],rStat.IsMouseDown());
1347         }
1348     }
1349     if (pU->eCurrentKind==OBJ_CARC && nCurrentPoint>=2) {
1350         pU->CalcCircle(rXPoly[nCurrentPoint-1],rXPoly[nCurrentPoint],rXPoly[nCurrentPoint-1]-rXPoly[nCurrentPoint-2],pView);
1351     }
1352     if (pU->eCurrentKind==OBJ_LINE && nCurrentPoint>=2) {
1353         pU->CalcLine(rXPoly[nCurrentPoint-1],rXPoly[nCurrentPoint],rXPoly[nCurrentPoint-1]-rXPoly[nCurrentPoint-2],pView);
1354     }
1355     if (pU->eCurrentKind==OBJ_RECT && nCurrentPoint>=2) {
1356         pU->CalcRect(rXPoly[nCurrentPoint-1],rXPoly[nCurrentPoint],rXPoly[nCurrentPoint-1]-rXPoly[nCurrentPoint-2],pView);
1357     }
1358 
1359     return true;
1360 }
1361 
EndCreate(SdrDragStat & rStat,SdrCreateCmd eCmd)1362 bool ImpPathForDragAndCreate::EndCreate(SdrDragStat& rStat, SdrCreateCmd eCmd)
1363 {
1364     ImpPathCreateUser* pU=static_cast<ImpPathCreateUser*>(rStat.GetUser());
1365     bool bRet = false;
1366     SdrView* pView=rStat.GetView();
1367     bool bIncomp=pView!=nullptr && pView->IsUseIncompatiblePathCreateInterface();
1368     XPolygon& rXPoly=aPathPolygon[aPathPolygon.Count()-1];
1369     sal_uInt16 nCurrentPoint=rXPoly.GetPointCount()-1;
1370     rXPoly[nCurrentPoint]=rStat.GetNow();
1371     if (!pU->bMixedCreate && pU->eStartKind==OBJ_LINE) {
1372         if (rStat.GetPointCount()>=2) eCmd=SdrCreateCmd::ForceEnd;
1373         bRet = eCmd==SdrCreateCmd::ForceEnd;
1374         if (bRet) {
1375             mbCreating = false;
1376             rStat.SetUser(nullptr);
1377         }
1378         return bRet;
1379     }
1380 
1381     if (!pU->bMixedCreate && IsFreeHand(pU->eStartKind)) {
1382         if (rStat.GetPointCount()>=2) eCmd=SdrCreateCmd::ForceEnd;
1383         bRet=eCmd==SdrCreateCmd::ForceEnd;
1384         if (bRet) {
1385             mbCreating=false;
1386             rStat.SetUser(nullptr);
1387         }
1388         return bRet;
1389     }
1390     if (eCmd==SdrCreateCmd::NextPoint || eCmd==SdrCreateCmd::NextObject) {
1391         // don't allow two consecutive points to occupy the same position
1392         if (nCurrentPoint==0 || rStat.GetNow()!=rXPoly[nCurrentPoint-1]) {
1393             if (bIncomp) {
1394                 if (pU->nBezierStartPoint>nCurrentPoint) pU->nBezierStartPoint=nCurrentPoint;
1395                 if (IsBezier(pU->eCurrentKind) && nCurrentPoint-pU->nBezierStartPoint>=3 && ((nCurrentPoint-pU->nBezierStartPoint)%3)==0) {
1396                     rXPoly.PointsToBezier(nCurrentPoint-3);
1397                     rXPoly.SetFlags(nCurrentPoint-1,PolyFlags::Control);
1398                     rXPoly.SetFlags(nCurrentPoint-2,PolyFlags::Control);
1399 
1400                     if (nCurrentPoint>=6 && rXPoly.IsControl(nCurrentPoint-4)) {
1401                         rXPoly.CalcTangent(nCurrentPoint-3,nCurrentPoint-4,nCurrentPoint-2);
1402                         rXPoly.SetFlags(nCurrentPoint-3,PolyFlags::Smooth);
1403                     }
1404                 }
1405             } else {
1406                 if (nCurrentPoint==1 && IsBezier(pU->eCurrentKind) && !pU->bBezHasCtrl0) {
1407                     pU->aBezControl0=rStat.GetNow();
1408                     pU->bBezHasCtrl0=true;
1409                     nCurrentPoint--;
1410                 }
1411                 if (pU->IsFormFlag()) {
1412                     sal_uInt16 nPointCount0=rXPoly.GetPointCount();
1413                     rXPoly.Remove(nCurrentPoint-1,2); // remove last two points and replace by form
1414                     rXPoly.Insert(XPOLY_APPEND,pU->GetFormPoly());
1415                     sal_uInt16 nPointCount1=rXPoly.GetPointCount();
1416                     for (sal_uInt16 i=nPointCount0+1; i<nPointCount1-1; i++) { // to make BckAction work
1417                         if (!rXPoly.IsControl(i)) rStat.NextPoint();
1418                     }
1419                     nCurrentPoint=rXPoly.GetPointCount()-1;
1420                 }
1421             }
1422             nCurrentPoint++;
1423             rXPoly[nCurrentPoint]=rStat.GetNow();
1424         }
1425         if (eCmd==SdrCreateCmd::NextObject) {
1426             if (rXPoly.GetPointCount()>=2) {
1427                 pU->bBezHasCtrl0=false;
1428                 // only a singular polygon may be opened, so close this
1429                 rXPoly[nCurrentPoint]=rXPoly[0];
1430                 XPolygon aXP;
1431                 aXP[0]=rStat.GetNow();
1432                 aPathPolygon.Insert(std::move(aXP));
1433             }
1434         }
1435     }
1436 
1437     sal_uInt16 nPolyCount=aPathPolygon.Count();
1438     if (nPolyCount!=0) {
1439         // delete last point, if necessary
1440         if (eCmd==SdrCreateCmd::ForceEnd) {
1441             XPolygon& rXP=aPathPolygon[nPolyCount-1];
1442             sal_uInt16 nPointCount=rXP.GetPointCount();
1443             if (nPointCount>=2) {
1444                 if (!rXP.IsControl(nPointCount-2)) {
1445                     if (rXP[nPointCount-1]==rXP[nPointCount-2]) {
1446                         rXP.Remove(nPointCount-1,1);
1447                     }
1448                 } else {
1449                     if (rXP[nPointCount-3]==rXP[nPointCount-2]) {
1450                         rXP.Remove(nPointCount-3,3);
1451                     }
1452                 }
1453             }
1454         }
1455         for (sal_uInt16 nPolyNum=nPolyCount; nPolyNum>0;) {
1456             nPolyNum--;
1457             XPolygon& rXP=aPathPolygon[nPolyNum];
1458             sal_uInt16 nPointCount=rXP.GetPointCount();
1459             // delete polygons with too few points
1460             if (nPolyNum<nPolyCount-1 || eCmd==SdrCreateCmd::ForceEnd) {
1461                 if (nPointCount<2) aPathPolygon.Remove(nPolyNum);
1462             }
1463         }
1464     }
1465     pU->ResetFormFlags();
1466     bRet=eCmd==SdrCreateCmd::ForceEnd;
1467     if (bRet) {
1468         mbCreating=false;
1469         rStat.SetUser(nullptr);
1470     }
1471     return bRet;
1472 }
1473 
BckCreate(SdrDragStat const & rStat)1474 bool ImpPathForDragAndCreate::BckCreate(SdrDragStat const & rStat)
1475 {
1476     ImpPathCreateUser* pU=static_cast<ImpPathCreateUser*>(rStat.GetUser());
1477     if (aPathPolygon.Count()>0) {
1478         XPolygon& rXPoly=aPathPolygon[aPathPolygon.Count()-1];
1479         sal_uInt16 nCurrentPoint=rXPoly.GetPointCount();
1480         if (nCurrentPoint>0) {
1481             nCurrentPoint--;
1482             // make the last part of a bezier curve a line
1483             rXPoly.Remove(nCurrentPoint,1);
1484             if (nCurrentPoint>=3 && rXPoly.IsControl(nCurrentPoint-1)) {
1485                 // there should never be a bezier segment at the end, so this is just in case...
1486                 rXPoly.Remove(nCurrentPoint-1,1);
1487                 if (rXPoly.IsControl(nCurrentPoint-2)) rXPoly.Remove(nCurrentPoint-2,1);
1488             }
1489         }
1490         nCurrentPoint=rXPoly.GetPointCount();
1491         if (nCurrentPoint>=4) { // no bezier segment at the end
1492             nCurrentPoint--;
1493             if (rXPoly.IsControl(nCurrentPoint-1)) {
1494                 rXPoly.Remove(nCurrentPoint-1,1);
1495                 if (rXPoly.IsControl(nCurrentPoint-2)) rXPoly.Remove(nCurrentPoint-2,1);
1496             }
1497         }
1498         if (rXPoly.GetPointCount()<2) {
1499             aPathPolygon.Remove(aPathPolygon.Count()-1);
1500         }
1501         if (aPathPolygon.Count()>0) {
1502             XPolygon& rLocalXPoly=aPathPolygon[aPathPolygon.Count()-1];
1503             sal_uInt16 nLocalCurrentPoint=rLocalXPoly.GetPointCount();
1504             if (nLocalCurrentPoint>0) {
1505                 nLocalCurrentPoint--;
1506                 rLocalXPoly[nLocalCurrentPoint]=rStat.GetNow();
1507             }
1508         }
1509     }
1510     pU->ResetFormFlags();
1511     return aPathPolygon.Count()!=0;
1512 }
1513 
BrkCreate(SdrDragStat & rStat)1514 void ImpPathForDragAndCreate::BrkCreate(SdrDragStat& rStat)
1515 {
1516     aPathPolygon.Clear();
1517     mbCreating=false;
1518     rStat.SetUser(nullptr);
1519 }
1520 
TakeObjectPolyPolygon(const SdrDragStat & rDrag) const1521 basegfx::B2DPolyPolygon ImpPathForDragAndCreate::TakeObjectPolyPolygon(const SdrDragStat& rDrag) const
1522 {
1523     basegfx::B2DPolyPolygon aRetval(aPathPolygon.getB2DPolyPolygon());
1524     SdrView* pView = rDrag.GetView();
1525 
1526     if(pView && pView->IsUseIncompatiblePathCreateInterface())
1527         return aRetval;
1528 
1529     ImpPathCreateUser* pU = static_cast<ImpPathCreateUser*>(rDrag.GetUser());
1530     basegfx::B2DPolygon aNewPolygon(aRetval.count() ? aRetval.getB2DPolygon(aRetval.count() - 1) : basegfx::B2DPolygon());
1531 
1532     if(pU->IsFormFlag() && aNewPolygon.count() > 1)
1533     {
1534         // remove last segment and replace with current
1535         // do not forget to rescue the previous control point which will be lost when
1536         // the point it's associated with is removed
1537         const sal_uInt32 nChangeIndex(aNewPolygon.count() - 2);
1538         const basegfx::B2DPoint aSavedPrevCtrlPoint(aNewPolygon.getPrevControlPoint(nChangeIndex));
1539 
1540         aNewPolygon.remove(nChangeIndex, 2);
1541         aNewPolygon.append(pU->GetFormPoly().getB2DPolygon());
1542 
1543         if(nChangeIndex < aNewPolygon.count())
1544         {
1545             // if really something was added, set the saved previous control point to the
1546             // point where it belongs
1547             aNewPolygon.setPrevControlPoint(nChangeIndex, aSavedPrevCtrlPoint);
1548         }
1549     }
1550 
1551     if(aRetval.count())
1552     {
1553         aRetval.setB2DPolygon(aRetval.count() - 1, aNewPolygon);
1554     }
1555     else
1556     {
1557         aRetval.append(aNewPolygon);
1558     }
1559 
1560     return aRetval;
1561 }
1562 
TakeDragPolyPolygon(const SdrDragStat & rDrag)1563 basegfx::B2DPolyPolygon ImpPathForDragAndCreate::TakeDragPolyPolygon(const SdrDragStat& rDrag)
1564 {
1565     basegfx::B2DPolyPolygon aRetval;
1566     SdrView* pView = rDrag.GetView();
1567 
1568     if(pView && pView->IsUseIncompatiblePathCreateInterface())
1569         return aRetval;
1570 
1571     const ImpPathCreateUser* pU = static_cast<const ImpPathCreateUser*>(rDrag.GetUser());
1572 
1573     if(pU && pU->bBezier && rDrag.IsMouseDown())
1574     {
1575         // no more XOR, no need for complicated helplines
1576         basegfx::B2DPolygon aHelpline;
1577         aHelpline.append(basegfx::B2DPoint(pU->aBezCtrl2.X(), pU->aBezCtrl2.Y()));
1578         aHelpline.append(basegfx::B2DPoint(pU->aBezEnd.X(), pU->aBezEnd.Y()));
1579         aRetval.append(aHelpline);
1580     }
1581 
1582     return aRetval;
1583 }
1584 
GetCreatePointer() const1585 PointerStyle ImpPathForDragAndCreate::GetCreatePointer() const
1586 {
1587     switch (meObjectKind) {
1588         case OBJ_LINE    : return PointerStyle::DrawLine;
1589         case OBJ_POLY    : return PointerStyle::DrawPolygon;
1590         case OBJ_PLIN    : return PointerStyle::DrawPolygon;
1591         case OBJ_PATHLINE: return PointerStyle::DrawBezier;
1592         case OBJ_PATHFILL: return PointerStyle::DrawBezier;
1593         case OBJ_FREELINE: return PointerStyle::DrawFreehand;
1594         case OBJ_FREEFILL: return PointerStyle::DrawFreehand;
1595         case OBJ_SPLNLINE: return PointerStyle::DrawFreehand;
1596         case OBJ_SPLNFILL: return PointerStyle::DrawFreehand;
1597         case OBJ_PATHPOLY: return PointerStyle::DrawPolygon;
1598         case OBJ_PATHPLIN: return PointerStyle::DrawPolygon;
1599         default: break;
1600     } // switch
1601     return PointerStyle::Cross;
1602 }
1603 
SdrPathObjGeoData()1604 SdrPathObjGeoData::SdrPathObjGeoData()
1605     : meKind(OBJ_NONE)
1606 {
1607 }
1608 
~SdrPathObjGeoData()1609 SdrPathObjGeoData::~SdrPathObjGeoData()
1610 {
1611 }
1612 
1613 // DrawContact section
1614 
CreateObjectSpecificViewContact()1615 std::unique_ptr<sdr::contact::ViewContact> SdrPathObj::CreateObjectSpecificViewContact()
1616 {
1617     return std::make_unique<sdr::contact::ViewContactOfSdrPathObj>(*this);
1618 }
1619 
1620 
SdrPathObj(SdrModel & rSdrModel,SdrObjKind eNewKind)1621 SdrPathObj::SdrPathObj(
1622     SdrModel& rSdrModel,
1623     SdrObjKind eNewKind)
1624 :   SdrTextObj(rSdrModel),
1625     meKind(eNewKind)
1626 {
1627     m_bClosedObj = IsClosed();
1628 }
1629 
SdrPathObj(SdrModel & rSdrModel,SdrPathObj const & rSource)1630 SdrPathObj::SdrPathObj(SdrModel& rSdrModel, SdrPathObj const & rSource)
1631 :   SdrTextObj(rSdrModel, rSource),
1632     meKind(rSource.meKind)
1633 {
1634     m_bClosedObj = IsClosed();
1635     maPathPolygon = rSource.GetPathPoly();
1636 }
1637 
SdrPathObj(SdrModel & rSdrModel,SdrObjKind eNewKind,const basegfx::B2DPolyPolygon & rPathPoly)1638 SdrPathObj::SdrPathObj(
1639     SdrModel& rSdrModel,
1640     SdrObjKind eNewKind,
1641     const basegfx::B2DPolyPolygon& rPathPoly)
1642 :   SdrTextObj(rSdrModel),
1643     maPathPolygon(rPathPoly),
1644     meKind(eNewKind)
1645 {
1646     m_bClosedObj = IsClosed();
1647     ImpForceKind();
1648 }
1649 
1650 SdrPathObj::~SdrPathObj() = default;
1651 
lcl_ImpIsLine(const basegfx::B2DPolyPolygon & rPolyPolygon)1652 static bool lcl_ImpIsLine(const basegfx::B2DPolyPolygon& rPolyPolygon)
1653 {
1654     return (1 == rPolyPolygon.count() && 2 == rPolyPolygon.getB2DPolygon(0).count());
1655 }
1656 
lcl_ImpGetBoundRect(const basegfx::B2DPolyPolygon & rPolyPolygon)1657 static tools::Rectangle lcl_ImpGetBoundRect(const basegfx::B2DPolyPolygon& rPolyPolygon)
1658 {
1659     basegfx::B2DRange aRange(basegfx::utils::getRange(rPolyPolygon));
1660 
1661     if (aRange.isEmpty())
1662         return tools::Rectangle();
1663 
1664     return tools::Rectangle(
1665         FRound(aRange.getMinX()), FRound(aRange.getMinY()),
1666         FRound(aRange.getMaxX()), FRound(aRange.getMaxY()));
1667 }
1668 
ImpForceLineAngle()1669 void SdrPathObj::ImpForceLineAngle()
1670 {
1671     if(OBJ_LINE != meKind || !lcl_ImpIsLine(GetPathPoly()))
1672         return;
1673 
1674     const basegfx::B2DPolygon aPoly(GetPathPoly().getB2DPolygon(0));
1675     const basegfx::B2DPoint aB2DPoint0(aPoly.getB2DPoint(0));
1676     const basegfx::B2DPoint aB2DPoint1(aPoly.getB2DPoint(1));
1677     const Point aPoint0(FRound(aB2DPoint0.getX()), FRound(aB2DPoint0.getY()));
1678     const Point aPoint1(FRound(aB2DPoint1.getX()), FRound(aB2DPoint1.getY()));
1679     const basegfx::B2DPoint aB2DDelt(aB2DPoint1 - aB2DPoint0);
1680     const Point aDelt(FRound(aB2DDelt.getX()), FRound(aB2DDelt.getY()));
1681 
1682     aGeo.nRotationAngle=GetAngle(aDelt);
1683     aGeo.nShearAngle=0_deg100;
1684     aGeo.RecalcSinCos();
1685     aGeo.RecalcTan();
1686 
1687     // for SdrTextObj, keep aRect up to date
1688     maRect = tools::Rectangle::Justify(aPoint0, aPoint1);
1689 }
1690 
ImpForceKind()1691 void SdrPathObj::ImpForceKind()
1692 {
1693     if (meKind==OBJ_PATHPLIN) meKind=OBJ_PLIN;
1694     if (meKind==OBJ_PATHPOLY) meKind=OBJ_POLY;
1695 
1696     if(GetPathPoly().areControlPointsUsed())
1697     {
1698         switch (meKind)
1699         {
1700             case OBJ_LINE: meKind=OBJ_PATHLINE; break;
1701             case OBJ_PLIN: meKind=OBJ_PATHLINE; break;
1702             case OBJ_POLY: meKind=OBJ_PATHFILL; break;
1703             default: break;
1704         }
1705     }
1706     else
1707     {
1708         switch (meKind)
1709         {
1710             case OBJ_PATHLINE: meKind=OBJ_PLIN; break;
1711             case OBJ_FREELINE: meKind=OBJ_PLIN; break;
1712             case OBJ_PATHFILL: meKind=OBJ_POLY; break;
1713             case OBJ_FREEFILL: meKind=OBJ_POLY; break;
1714             default: break;
1715         }
1716     }
1717 
1718     if (meKind==OBJ_LINE && !lcl_ImpIsLine(GetPathPoly())) meKind=OBJ_PLIN;
1719     if (meKind==OBJ_PLIN && lcl_ImpIsLine(GetPathPoly())) meKind=OBJ_LINE;
1720 
1721     m_bClosedObj=IsClosed();
1722 
1723     if (meKind==OBJ_LINE)
1724     {
1725         ImpForceLineAngle();
1726     }
1727     else
1728     {
1729         // #i10659#, for polys with more than 2 points.
1730 
1731         // Here i again need to fix something, because when Path-Polys are Copy-Pasted
1732         // between Apps with different measurements (e.g. 100TH_MM and TWIPS) there is
1733         // a scaling loop started from SdrExchangeView::Paste. In itself, this is not
1734         // wrong, but aRect is wrong here and not even updated by RecalcSnapRect(). If
1735         // this is the case, some size needs to be set here in aRect to avoid that the cycle
1736         // through Rect2Poly - Poly2Rect does something badly wrong since that cycle is
1737         // BASED on aRect. That cycle is triggered in SdrTextObj::NbcResize() which is called
1738         // from the local Resize() implementation.
1739 
1740         // Basic problem is that the member aRect in SdrTextObj basically is a unrotated
1741         // text rectangle for the text object itself and methods at SdrTextObj do handle it
1742         // in that way. Many draw objects derived from SdrTextObj 'abuse' aRect as SnapRect
1743         // which is basically wrong. To make the SdrText methods which deal with aRect directly
1744         // work it is necessary to always keep aRect updated. This e.g. not done after a Clone()
1745         // command for SdrPathObj. Since adding this update mechanism with #101412# to
1746         // ImpForceLineAngle() for lines was very successful, i add it to where ImpForceLineAngle()
1747         // was called, once here below and once on a 2nd place below.
1748 
1749         // #i10659# for SdrTextObj, keep aRect up to date
1750         if(GetPathPoly().count())
1751         {
1752             maRect = lcl_ImpGetBoundRect(GetPathPoly());
1753         }
1754     }
1755 
1756     // #i75974# adapt polygon state to object type. This may include a reinterpretation
1757     // of a closed geometry as open one, but with identical first and last point
1758     for(auto& rPolygon : maPathPolygon)
1759     {
1760         if(IsClosed() != rPolygon.isClosed())
1761         {
1762             // #i80213# really change polygon geometry; else e.g. the last point which
1763             // needs to be identical with the first one will be missing when opening
1764             // due to OBJ_PATH type
1765             if(rPolygon.isClosed())
1766             {
1767                 basegfx::utils::openWithGeometryChange(rPolygon);
1768             }
1769             else
1770             {
1771                 basegfx::utils::closeWithGeometryChange(rPolygon);
1772             }
1773         }
1774     }
1775 }
1776 
ImpSetClosed(bool bClose)1777 void SdrPathObj::ImpSetClosed(bool bClose)
1778 {
1779     if(bClose)
1780     {
1781         switch (meKind)
1782         {
1783             case OBJ_LINE    : meKind=OBJ_POLY;     break;
1784             case OBJ_PLIN    : meKind=OBJ_POLY;     break;
1785             case OBJ_PATHLINE: meKind=OBJ_PATHFILL; break;
1786             case OBJ_FREELINE: meKind=OBJ_FREEFILL; break;
1787             case OBJ_SPLNLINE: meKind=OBJ_SPLNFILL; break;
1788             default: break;
1789         }
1790 
1791         m_bClosedObj = true;
1792     }
1793     else
1794     {
1795         switch (meKind)
1796         {
1797             case OBJ_POLY    : meKind=OBJ_PLIN;     break;
1798             case OBJ_PATHFILL: meKind=OBJ_PATHLINE; break;
1799             case OBJ_FREEFILL: meKind=OBJ_FREELINE; break;
1800             case OBJ_SPLNFILL: meKind=OBJ_SPLNLINE; break;
1801             default: break;
1802         }
1803 
1804         m_bClosedObj = false;
1805     }
1806 
1807     ImpForceKind();
1808 }
1809 
TakeObjInfo(SdrObjTransformInfoRec & rInfo) const1810 void SdrPathObj::TakeObjInfo(SdrObjTransformInfoRec& rInfo) const
1811 {
1812     rInfo.bNoContortion=false;
1813 
1814     bool bCanConv = !HasText() || ImpCanConvTextToCurve();
1815     bool bIsPath = IsBezier() || IsSpline();
1816 
1817     rInfo.bEdgeRadiusAllowed    = false;
1818     rInfo.bCanConvToPath = bCanConv && !bIsPath;
1819     rInfo.bCanConvToPoly = bCanConv && bIsPath;
1820     rInfo.bCanConvToContour = !IsFontwork() && (rInfo.bCanConvToPoly || LineGeometryUsageIsNecessary());
1821 }
1822 
GetObjIdentifier() const1823 SdrObjKind SdrPathObj::GetObjIdentifier() const
1824 {
1825     return meKind;
1826 }
1827 
CloneSdrObject(SdrModel & rTargetModel) const1828 SdrPathObj* SdrPathObj::CloneSdrObject(SdrModel& rTargetModel) const
1829 {
1830     return new SdrPathObj(rTargetModel, *this);
1831 }
1832 
TakeObjNameSingul() const1833 OUString SdrPathObj::TakeObjNameSingul() const
1834 {
1835     OUString sName;
1836 
1837     if(OBJ_LINE == meKind)
1838     {
1839         const char* pId(STR_ObjNameSingulLINE);
1840 
1841         if(lcl_ImpIsLine(GetPathPoly()))
1842         {
1843             const basegfx::B2DPolygon aPoly(GetPathPoly().getB2DPolygon(0));
1844             const basegfx::B2DPoint aB2DPoint0(aPoly.getB2DPoint(0));
1845             const basegfx::B2DPoint aB2DPoint1(aPoly.getB2DPoint(1));
1846 
1847             if(aB2DPoint0 != aB2DPoint1)
1848             {
1849                 if(aB2DPoint0.getY() == aB2DPoint1.getY())
1850                 {
1851                     pId = STR_ObjNameSingulLINE_Hori;
1852                 }
1853                 else if(aB2DPoint0.getX() == aB2DPoint1.getX())
1854                 {
1855                     pId = STR_ObjNameSingulLINE_Vert;
1856                 }
1857                 else
1858                 {
1859                     const double fDx(fabs(aB2DPoint0.getX() - aB2DPoint1.getX()));
1860                     const double fDy(fabs(aB2DPoint0.getY() - aB2DPoint1.getY()));
1861 
1862                     if(fDx == fDy)
1863                     {
1864                         pId = STR_ObjNameSingulLINE_Diag;
1865                     }
1866                 }
1867             }
1868         }
1869 
1870         sName = SvxResId(pId);
1871     }
1872     else if(OBJ_PLIN == meKind || OBJ_POLY == meKind)
1873     {
1874         const bool bClosed(OBJ_POLY == meKind);
1875         const char* pId(nullptr);
1876 
1877         if(mpDAC && mpDAC->IsCreating())
1878         {
1879             if(bClosed)
1880             {
1881                 pId = STR_ObjNameSingulPOLY;
1882             }
1883             else
1884             {
1885                 pId = STR_ObjNameSingulPLIN;
1886             }
1887 
1888             sName = SvxResId(pId);
1889         }
1890         else
1891         {
1892             // get point count
1893             sal_uInt32 nPointCount(0);
1894 
1895             for(auto const& rPolygon : GetPathPoly())
1896             {
1897                 nPointCount += rPolygon.count();
1898             }
1899 
1900             if(bClosed)
1901             {
1902                 pId = STR_ObjNameSingulPOLY_PointCount;
1903             }
1904             else
1905             {
1906                 pId = STR_ObjNameSingulPLIN_PointCount;
1907             }
1908 
1909             // #i96537#
1910             sName = SvxResId(pId).replaceFirst("%2", OUString::number(nPointCount));
1911         }
1912     }
1913     else
1914     {
1915         switch (meKind)
1916         {
1917             case OBJ_PATHLINE: sName = SvxResId(STR_ObjNameSingulPATHLINE); break;
1918             case OBJ_FREELINE: sName = SvxResId(STR_ObjNameSingulFREELINE); break;
1919             case OBJ_SPLNLINE: sName = SvxResId(STR_ObjNameSingulNATSPLN); break;
1920             case OBJ_PATHFILL: sName = SvxResId(STR_ObjNameSingulPATHFILL); break;
1921             case OBJ_FREEFILL: sName = SvxResId(STR_ObjNameSingulFREEFILL); break;
1922             case OBJ_SPLNFILL: sName = SvxResId(STR_ObjNameSingulPERSPLN); break;
1923             default: break;
1924         }
1925     }
1926 
1927     OUString aName(GetName());
1928     if (!aName.isEmpty())
1929         sName += " '" + aName + "'";
1930 
1931     return sName;
1932 }
1933 
TakeObjNamePlural() const1934 OUString SdrPathObj::TakeObjNamePlural() const
1935 {
1936     OUString sName;
1937     switch(meKind)
1938     {
1939         case OBJ_LINE    : sName=SvxResId(STR_ObjNamePluralLINE    ); break;
1940         case OBJ_PLIN    : sName=SvxResId(STR_ObjNamePluralPLIN    ); break;
1941         case OBJ_POLY    : sName=SvxResId(STR_ObjNamePluralPOLY    ); break;
1942         case OBJ_PATHLINE: sName=SvxResId(STR_ObjNamePluralPATHLINE); break;
1943         case OBJ_FREELINE: sName=SvxResId(STR_ObjNamePluralFREELINE); break;
1944         case OBJ_SPLNLINE: sName=SvxResId(STR_ObjNamePluralNATSPLN); break;
1945         case OBJ_PATHFILL: sName=SvxResId(STR_ObjNamePluralPATHFILL); break;
1946         case OBJ_FREEFILL: sName=SvxResId(STR_ObjNamePluralFREEFILL); break;
1947         case OBJ_SPLNFILL: sName=SvxResId(STR_ObjNamePluralPERSPLN); break;
1948         default: break;
1949     }
1950     return sName;
1951 }
1952 
TakeXorPoly() const1953 basegfx::B2DPolyPolygon SdrPathObj::TakeXorPoly() const
1954 {
1955     return GetPathPoly();
1956 }
1957 
GetHdlCount() const1958 sal_uInt32 SdrPathObj::GetHdlCount() const
1959 {
1960     sal_uInt32 nRetval(0);
1961 
1962     for(auto const& rPolygon : GetPathPoly())
1963     {
1964         nRetval += rPolygon.count();
1965     }
1966 
1967     return nRetval;
1968 }
1969 
AddToHdlList(SdrHdlList & rHdlList) const1970 void SdrPathObj::AddToHdlList(SdrHdlList& rHdlList) const
1971 {
1972     // keep old stuff to be able to keep old SdrHdl stuff, too
1973     const XPolyPolygon aOldPathPolygon(GetPathPoly());
1974     sal_uInt16 nPolyCnt=aOldPathPolygon.Count();
1975     bool bClosed=IsClosed();
1976     sal_uInt16 nIdx=0;
1977 
1978     for (sal_uInt16 i=0; i<nPolyCnt; i++) {
1979         const XPolygon& rXPoly=aOldPathPolygon.GetObject(i);
1980         sal_uInt16 nPntCnt=rXPoly.GetPointCount();
1981         if (bClosed && nPntCnt>1) nPntCnt--;
1982 
1983         for (sal_uInt16 j=0; j<nPntCnt; j++) {
1984             if (rXPoly.GetFlags(j)!=PolyFlags::Control) {
1985                 const Point& rPnt=rXPoly[j];
1986                 std::unique_ptr<SdrHdl> pHdl(new SdrHdl(rPnt,SdrHdlKind::Poly));
1987                 pHdl->SetPolyNum(i);
1988                 pHdl->SetPointNum(j);
1989                 pHdl->Set1PixMore(j==0);
1990                 pHdl->SetSourceHdlNum(nIdx);
1991                 nIdx++;
1992                 rHdlList.AddHdl(std::move(pHdl));
1993             }
1994         }
1995     }
1996 }
1997 
AddToPlusHdlList(SdrHdlList & rHdlList,SdrHdl & rHdl) const1998 void SdrPathObj::AddToPlusHdlList(SdrHdlList& rHdlList, SdrHdl& rHdl) const
1999 {
2000     // keep old stuff to be able to keep old SdrHdl stuff, too
2001     const XPolyPolygon aOldPathPolygon(GetPathPoly());
2002     sal_uInt16 nPnt = static_cast<sal_uInt16>(rHdl.GetPointNum());
2003     sal_uInt16 nPolyNum = static_cast<sal_uInt16>(rHdl.GetPolyNum());
2004 
2005     if (nPolyNum>=aOldPathPolygon.Count())
2006         return;
2007 
2008     const XPolygon& rXPoly = aOldPathPolygon[nPolyNum];
2009     sal_uInt16 nPntMax = rXPoly.GetPointCount();
2010 
2011     if (nPntMax<=0)
2012         return;
2013     nPntMax--;
2014     if (nPnt>nPntMax)
2015         return;
2016 
2017     // calculate the number of plus points
2018     sal_uInt16 nCnt = 0;
2019     if (rXPoly.GetFlags(nPnt)!=PolyFlags::Control)
2020     {
2021         if (nPnt==0 && IsClosed())
2022             nPnt=nPntMax;
2023         if (nPnt>0 && rXPoly.GetFlags(nPnt-1)==PolyFlags::Control)
2024             nCnt++;
2025         if (nPnt==nPntMax && IsClosed())
2026             nPnt=0;
2027         if (nPnt<nPntMax && rXPoly.GetFlags(nPnt+1)==PolyFlags::Control)
2028             nCnt++;
2029     }
2030 
2031     // construct the plus points
2032     for (sal_uInt32 nPlusNum = 0; nPlusNum < nCnt; ++nPlusNum)
2033     {
2034         nPnt = static_cast<sal_uInt16>(rHdl.GetPointNum());
2035         std::unique_ptr<SdrHdl> pHdl(new SdrHdlBezWgt(&rHdl));
2036         pHdl->SetPolyNum(rHdl.GetPolyNum());
2037 
2038         if (nPnt==0 && IsClosed())
2039             nPnt=nPntMax;
2040         if (nPnt>0 && rXPoly.GetFlags(nPnt-1)==PolyFlags::Control && nPlusNum==0)
2041         {
2042             pHdl->SetPos(rXPoly[nPnt-1]);
2043             pHdl->SetPointNum(nPnt-1);
2044         }
2045         else
2046         {
2047             if (nPnt==nPntMax && IsClosed())
2048                 nPnt=0;
2049             if (nPnt<rXPoly.GetPointCount()-1 && rXPoly.GetFlags(nPnt+1)==PolyFlags::Control)
2050             {
2051                 pHdl->SetPos(rXPoly[nPnt+1]);
2052                 pHdl->SetPointNum(nPnt+1);
2053             }
2054         }
2055 
2056         pHdl->SetSourceHdlNum(rHdl.GetSourceHdlNum());
2057         pHdl->SetPlusHdl(true);
2058         rHdlList.AddHdl(std::move(pHdl));
2059     }
2060 }
2061 
2062 // tdf#123321: Make sure that SdrPathObj (e.g. line) has big enough extent for
2063 // visibility. This is realised by ensuring GetLogicRect() is the same as
2064 // GetSnapRect() for the SdrPathObj. Other SdrTextObj objects like
2065 // SdrObjCustomShape will still use a different version of this method that
2066 // does not consider the rotation. Otherwise, the rotated SdrObjCustomShape
2067 // would become mistakenly larger after save and reload (tdf#91687).
2068 // The invokation of the GetLogicRect() method that caused tdf#123321 was in
2069 // PlcDrawObj::WritePlc().
GetLogicRect() const2070 const tools::Rectangle &SdrPathObj::GetLogicRect() const
2071 {
2072     return GetSnapRect();
2073 }
2074 
2075 // dragging
2076 
hasSpecialDrag() const2077 bool SdrPathObj::hasSpecialDrag() const
2078 {
2079     return true;
2080 }
2081 
beginSpecialDrag(SdrDragStat & rDrag) const2082 bool SdrPathObj::beginSpecialDrag(SdrDragStat& rDrag) const
2083 {
2084     ImpPathForDragAndCreate aDragAndCreate(*const_cast<SdrPathObj*>(this));
2085 
2086     return aDragAndCreate.beginPathDrag(rDrag);
2087 }
2088 
applySpecialDrag(SdrDragStat & rDrag)2089 bool SdrPathObj::applySpecialDrag(SdrDragStat& rDrag)
2090 {
2091     ImpPathForDragAndCreate aDragAndCreate(*this);
2092     bool bRetval(aDragAndCreate.beginPathDrag(rDrag));
2093 
2094     if(bRetval)
2095     {
2096         bRetval = aDragAndCreate.movePathDrag(rDrag);
2097     }
2098 
2099     if(bRetval)
2100     {
2101         bRetval = aDragAndCreate.endPathDrag(rDrag);
2102     }
2103 
2104     if(bRetval)
2105     {
2106            NbcSetPathPoly(aDragAndCreate.getModifiedPolyPolygon());
2107     }
2108 
2109     return bRetval;
2110 }
2111 
getSpecialDragComment(const SdrDragStat & rDrag) const2112 OUString SdrPathObj::getSpecialDragComment(const SdrDragStat& rDrag) const
2113 {
2114     OUString aRetval;
2115 
2116     if(mpDAC)
2117     {
2118         // #i103058# also get a comment when in creation
2119         const bool bCreateComment(rDrag.GetView() && this == rDrag.GetView()->GetCreateObj());
2120 
2121         if(bCreateComment)
2122         {
2123             aRetval = mpDAC->getSpecialDragComment(rDrag);
2124         }
2125     }
2126     else
2127     {
2128         ImpPathForDragAndCreate aDragAndCreate(*const_cast<SdrPathObj*>(this));
2129         bool bDidWork(aDragAndCreate.beginPathDrag(rDrag));
2130 
2131         if(bDidWork)
2132         {
2133             aRetval = aDragAndCreate.getSpecialDragComment(rDrag);
2134         }
2135     }
2136 
2137     return aRetval;
2138 }
2139 
getSpecialDragPoly(const SdrDragStat & rDrag) const2140 basegfx::B2DPolyPolygon SdrPathObj::getSpecialDragPoly(const SdrDragStat& rDrag) const
2141 {
2142     basegfx::B2DPolyPolygon aRetval;
2143     ImpPathForDragAndCreate aDragAndCreate(*const_cast<SdrPathObj*>(this));
2144     bool bDidWork(aDragAndCreate.beginPathDrag(rDrag));
2145 
2146     if(bDidWork)
2147     {
2148         aRetval = aDragAndCreate.getSpecialDragPoly(rDrag);
2149     }
2150 
2151     return aRetval;
2152 }
2153 
2154 // creation
2155 
BegCreate(SdrDragStat & rStat)2156 bool SdrPathObj::BegCreate(SdrDragStat& rStat)
2157 {
2158     mpDAC.reset();
2159     impGetDAC().BegCreate(rStat);
2160     return true;
2161 }
2162 
MovCreate(SdrDragStat & rStat)2163 bool SdrPathObj::MovCreate(SdrDragStat& rStat)
2164 {
2165     return impGetDAC().MovCreate(rStat);
2166 }
2167 
EndCreate(SdrDragStat & rStat,SdrCreateCmd eCmd)2168 bool SdrPathObj::EndCreate(SdrDragStat& rStat, SdrCreateCmd eCmd)
2169 {
2170     bool bRetval(impGetDAC().EndCreate(rStat, eCmd));
2171 
2172     if(bRetval && mpDAC)
2173     {
2174         SetPathPoly(mpDAC->getModifiedPolyPolygon());
2175 
2176         // #i75974# Check for AutoClose feature. Moved here from ImpPathForDragAndCreate::EndCreate
2177         // to be able to use the type-changing ImpSetClosed method
2178         if(!IsClosedObj())
2179         {
2180             SdrView* pView = rStat.GetView();
2181 
2182             if(pView && !pView->IsUseIncompatiblePathCreateInterface())
2183             {
2184                 OutputDevice* pOut = pView->GetFirstOutputDevice();
2185 
2186                 if(pOut)
2187                 {
2188                     if(GetPathPoly().count())
2189                     {
2190                         const basegfx::B2DPolygon aCandidate(GetPathPoly().getB2DPolygon(0));
2191 
2192                         if(aCandidate.count() > 2)
2193                         {
2194                             // check distance of first and last point
2195                             const sal_Int32 nCloseDist(pOut->PixelToLogic(Size(pView->GetAutoCloseDistPix(), 0)).Width());
2196                             const basegfx::B2DVector aDistVector(aCandidate.getB2DPoint(aCandidate.count() - 1) - aCandidate.getB2DPoint(0));
2197 
2198                             if(aDistVector.getLength() <= static_cast<double>(nCloseDist))
2199                             {
2200                                 // close it
2201                                 ImpSetClosed(true);
2202                             }
2203                         }
2204                     }
2205                 }
2206             }
2207         }
2208 
2209         mpDAC.reset();
2210     }
2211 
2212     return bRetval;
2213 }
2214 
BckCreate(SdrDragStat & rStat)2215 bool SdrPathObj::BckCreate(SdrDragStat& rStat)
2216 {
2217     return impGetDAC().BckCreate(rStat);
2218 }
2219 
BrkCreate(SdrDragStat & rStat)2220 void SdrPathObj::BrkCreate(SdrDragStat& rStat)
2221 {
2222     impGetDAC().BrkCreate(rStat);
2223     mpDAC.reset();
2224 }
2225 
2226 // polygons
2227 
TakeCreatePoly(const SdrDragStat & rDrag) const2228 basegfx::B2DPolyPolygon SdrPathObj::TakeCreatePoly(const SdrDragStat& rDrag) const
2229 {
2230     basegfx::B2DPolyPolygon aRetval;
2231 
2232     if(mpDAC)
2233     {
2234         aRetval = mpDAC->TakeObjectPolyPolygon(rDrag);
2235         aRetval.append(ImpPathForDragAndCreate::TakeDragPolyPolygon(rDrag));
2236     }
2237 
2238     return aRetval;
2239 }
2240 
2241 // during drag or create, allow accessing the so-far created/modified polyPolygon
getObjectPolyPolygon(const SdrDragStat & rDrag) const2242 basegfx::B2DPolyPolygon SdrPathObj::getObjectPolyPolygon(const SdrDragStat& rDrag) const
2243 {
2244     basegfx::B2DPolyPolygon aRetval;
2245 
2246     if(mpDAC)
2247     {
2248         aRetval = mpDAC->TakeObjectPolyPolygon(rDrag);
2249     }
2250 
2251     return aRetval;
2252 }
2253 
getDragPolyPolygon(const SdrDragStat & rDrag) const2254 basegfx::B2DPolyPolygon SdrPathObj::getDragPolyPolygon(const SdrDragStat& rDrag) const
2255 {
2256     basegfx::B2DPolyPolygon aRetval;
2257 
2258     if(mpDAC)
2259     {
2260         aRetval = ImpPathForDragAndCreate::TakeDragPolyPolygon(rDrag);
2261     }
2262 
2263     return aRetval;
2264 }
2265 
GetCreatePointer() const2266 PointerStyle SdrPathObj::GetCreatePointer() const
2267 {
2268     return impGetDAC().GetCreatePointer();
2269 }
2270 
NbcMove(const Size & rSiz)2271 void SdrPathObj::NbcMove(const Size& rSiz)
2272 {
2273     maPathPolygon.transform(basegfx::utils::createTranslateB2DHomMatrix(rSiz.Width(), rSiz.Height()));
2274 
2275     // #i19871# first modify locally, then call parent (to get correct SnapRect with GluePoints)
2276     SdrTextObj::NbcMove(rSiz);
2277 }
2278 
NbcResize(const Point & rRef,const Fraction & xFact,const Fraction & yFact)2279 void SdrPathObj::NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact)
2280 {
2281     const double fResizeX(xFact);
2282     const double fResizeY(yFact);
2283 
2284     if(basegfx::fTools::equal(fResizeX, 1.0) && basegfx::fTools::equal(fResizeY, 1.0))
2285     {
2286         // tdf#106792 avoid numerical unprecisions: If both scale factors are 1.0, do not
2287         // manipulate at all - that may change aGeo rapidly (and wrongly) in
2288         // SdrTextObj::NbcResize. Combined with the UNO API trying to not 'apply'
2289         // a rotation but to manipulate the existing one, this is fatal. So just
2290         // avoid this error as long as we have to deal with imprecise geometry
2291         // manipulations
2292         return;
2293     }
2294 
2295     basegfx::B2DHomMatrix aTrans(basegfx::utils::createTranslateB2DHomMatrix(-rRef.X(), -rRef.Y()));
2296     aTrans = basegfx::utils::createScaleTranslateB2DHomMatrix(
2297         double(xFact), double(yFact), rRef.X(), rRef.Y()) * aTrans;
2298     maPathPolygon.transform(aTrans);
2299 
2300     // #i19871# first modify locally, then call parent (to get correct SnapRect with GluePoints)
2301     SdrTextObj::NbcResize(rRef,xFact,yFact);
2302 }
2303 
NbcRotate(const Point & rRef,Degree100 nAngle,double sn,double cs)2304 void SdrPathObj::NbcRotate(const Point& rRef, Degree100 nAngle, double sn, double cs)
2305 {
2306     // Thank JOE, the angles are defined mirrored to the mathematical meanings
2307     const basegfx::B2DHomMatrix aTrans(
2308         basegfx::utils::createRotateAroundPoint(rRef.X(), rRef.Y(), -nAngle.get() * F_PI18000));
2309     maPathPolygon.transform(aTrans);
2310 
2311     // #i19871# first modify locally, then call parent (to get correct SnapRect with GluePoints)
2312     SdrTextObj::NbcRotate(rRef,nAngle,sn,cs);
2313 }
2314 
NbcShear(const Point & rRefPnt,Degree100 nAngle,double fTan,bool bVShear)2315 void SdrPathObj::NbcShear(const Point& rRefPnt, Degree100 nAngle, double fTan, bool bVShear)
2316 {
2317     basegfx::B2DHomMatrix aTrans(basegfx::utils::createTranslateB2DHomMatrix(-rRefPnt.X(), -rRefPnt.Y()));
2318 
2319     if(bVShear)
2320     {
2321         // Thank JOE, the angles are defined mirrored to the mathematical meanings
2322         aTrans.shearY(-fTan);
2323     }
2324     else
2325     {
2326         aTrans.shearX(-fTan);
2327     }
2328 
2329     aTrans.translate(rRefPnt.X(), rRefPnt.Y());
2330     maPathPolygon.transform(aTrans);
2331 
2332     // #i19871# first modify locally, then call parent (to get correct SnapRect with GluePoints)
2333     SdrTextObj::NbcShear(rRefPnt,nAngle,fTan,bVShear);
2334 }
2335 
NbcMirror(const Point & rRefPnt1,const Point & rRefPnt2)2336 void SdrPathObj::NbcMirror(const Point& rRefPnt1, const Point& rRefPnt2)
2337 {
2338     const double fDiffX(rRefPnt2.X() - rRefPnt1.X());
2339     const double fDiffY(rRefPnt2.Y() - rRefPnt1.Y());
2340     const double fRot(atan2(fDiffY, fDiffX));
2341     basegfx::B2DHomMatrix aTrans(basegfx::utils::createTranslateB2DHomMatrix(-rRefPnt1.X(), -rRefPnt1.Y()));
2342     aTrans.rotate(-fRot);
2343     aTrans.scale(1.0, -1.0);
2344     aTrans.rotate(fRot);
2345     aTrans.translate(rRefPnt1.X(), rRefPnt1.Y());
2346     maPathPolygon.transform(aTrans);
2347 
2348     // Do Joe's special handling for lines when mirroring, too
2349     ImpForceKind();
2350 
2351     // #i19871# first modify locally, then call parent (to get correct SnapRect with GluePoints)
2352     SdrTextObj::NbcMirror(rRefPnt1,rRefPnt2);
2353 }
2354 
TakeUnrotatedSnapRect(tools::Rectangle & rRect) const2355 void SdrPathObj::TakeUnrotatedSnapRect(tools::Rectangle& rRect) const
2356 {
2357     if(!aGeo.nRotationAngle)
2358     {
2359         rRect = GetSnapRect();
2360     }
2361     else
2362     {
2363         XPolyPolygon aXPP(GetPathPoly());
2364         RotateXPoly(aXPP,Point(),-aGeo.mfSinRotationAngle,aGeo.mfCosRotationAngle);
2365         rRect=aXPP.GetBoundRect();
2366         Point aTmp(rRect.TopLeft());
2367         RotatePoint(aTmp,Point(),aGeo.mfSinRotationAngle,aGeo.mfCosRotationAngle);
2368         aTmp-=rRect.TopLeft();
2369         rRect.Move(aTmp.X(),aTmp.Y());
2370     }
2371 }
2372 
RecalcSnapRect()2373 void SdrPathObj::RecalcSnapRect()
2374 {
2375     if(GetPathPoly().count())
2376     {
2377         maSnapRect = lcl_ImpGetBoundRect(GetPathPoly());
2378     }
2379 }
2380 
NbcSetSnapRect(const tools::Rectangle & rRect)2381 void SdrPathObj::NbcSetSnapRect(const tools::Rectangle& rRect)
2382 {
2383     tools::Rectangle aOld(GetSnapRect());
2384     if (aOld.IsEmpty())
2385     {
2386         Fraction aX(1,1);
2387         Fraction aY(1,1);
2388         NbcResize(aOld.TopLeft(), aX, aY);
2389         NbcMove(Size(rRect.Left() - aOld.Left(), rRect.Top() - aOld.Top()));
2390         return;
2391     }
2392 
2393     // Take empty into account when calculating scale factors
2394     tools::Long nMulX = rRect.IsWidthEmpty() ? 0 : rRect.Right()  - rRect.Left();
2395 
2396     tools::Long nDivX = aOld.Right()   - aOld.Left();
2397 
2398     // Take empty into account when calculating scale factors
2399     tools::Long nMulY = rRect.IsHeightEmpty() ? 0 : rRect.Bottom() - rRect.Top();
2400 
2401     tools::Long nDivY = aOld.Bottom()  - aOld.Top();
2402     if ( nDivX == 0 ) { nMulX = 1; nDivX = 1; }
2403     if ( nDivY == 0 ) { nMulY = 1; nDivY = 1; }
2404     if ( nDivX == nMulX ) { nMulX = 1; nDivX = 1; }
2405     if ( nDivY == nMulY ) { nMulY = 1; nDivY = 1; }
2406     Fraction aX(nMulX,nDivX);
2407     Fraction aY(nMulY,nDivY);
2408     NbcResize(aOld.TopLeft(), aX, aY);
2409     NbcMove(Size(rRect.Left() - aOld.Left(), rRect.Top() - aOld.Top()));
2410 }
2411 
GetSnapPointCount() const2412 sal_uInt32 SdrPathObj::GetSnapPointCount() const
2413 {
2414     return GetHdlCount();
2415 }
2416 
GetSnapPoint(sal_uInt32 nSnapPnt) const2417 Point SdrPathObj::GetSnapPoint(sal_uInt32 nSnapPnt) const
2418 {
2419     sal_uInt32 nPoly,nPnt;
2420     if(!PolyPolygonEditor::GetRelativePolyPoint(GetPathPoly(), nSnapPnt, nPoly, nPnt))
2421     {
2422         SAL_WARN("svx", "SdrPathObj::GetSnapPoint: Point nSnapPnt does not exist.");
2423     }
2424 
2425     const basegfx::B2DPoint aB2DPoint(GetPathPoly().getB2DPolygon(nPoly).getB2DPoint(nPnt));
2426     return Point(FRound(aB2DPoint.getX()), FRound(aB2DPoint.getY()));
2427 }
2428 
IsPolyObj() const2429 bool SdrPathObj::IsPolyObj() const
2430 {
2431     return true;
2432 }
2433 
GetPointCount() const2434 sal_uInt32 SdrPathObj::GetPointCount() const
2435 {
2436     sal_uInt32 nRetval(0);
2437 
2438     for(auto const& rPolygon : GetPathPoly())
2439     {
2440         nRetval += rPolygon.count();
2441     }
2442 
2443     return nRetval;
2444 }
2445 
GetPoint(sal_uInt32 nHdlNum) const2446 Point SdrPathObj::GetPoint(sal_uInt32 nHdlNum) const
2447 {
2448     Point aRetval;
2449     sal_uInt32 nPoly,nPnt;
2450 
2451     if(PolyPolygonEditor::GetRelativePolyPoint(GetPathPoly(), nHdlNum, nPoly, nPnt))
2452     {
2453         const basegfx::B2DPolygon aPoly(GetPathPoly().getB2DPolygon(nPoly));
2454         const basegfx::B2DPoint aPoint(aPoly.getB2DPoint(nPnt));
2455         aRetval = Point(FRound(aPoint.getX()), FRound(aPoint.getY()));
2456     }
2457 
2458     return aRetval;
2459 }
2460 
NbcSetPoint(const Point & rPnt,sal_uInt32 nHdlNum)2461 void SdrPathObj::NbcSetPoint(const Point& rPnt, sal_uInt32 nHdlNum)
2462 {
2463     sal_uInt32 nPoly,nPnt;
2464 
2465     if(!PolyPolygonEditor::GetRelativePolyPoint(GetPathPoly(), nHdlNum, nPoly, nPnt))
2466         return;
2467 
2468     basegfx::B2DPolygon aNewPolygon(GetPathPoly().getB2DPolygon(nPoly));
2469     aNewPolygon.setB2DPoint(nPnt, basegfx::B2DPoint(rPnt.X(), rPnt.Y()));
2470     maPathPolygon.setB2DPolygon(nPoly, aNewPolygon);
2471 
2472     if(meKind==OBJ_LINE)
2473     {
2474         ImpForceLineAngle();
2475     }
2476     else
2477     {
2478         if(GetPathPoly().count())
2479         {
2480             // #i10659# for SdrTextObj, keep aRect up to date
2481             maRect = lcl_ImpGetBoundRect(GetPathPoly());
2482         }
2483     }
2484 
2485     SetRectsDirty();
2486 }
2487 
NbcInsPointOld(const Point & rPos,bool bNewObj)2488 sal_uInt32 SdrPathObj::NbcInsPointOld(const Point& rPos, bool bNewObj)
2489 {
2490     sal_uInt32 nNewHdl;
2491 
2492     if(bNewObj)
2493     {
2494         nNewHdl = NbcInsPoint(rPos, true);
2495     }
2496     else
2497     {
2498         // look for smallest distance data
2499         const basegfx::B2DPoint aTestPoint(rPos.X(), rPos.Y());
2500         sal_uInt32 nSmallestPolyIndex(0);
2501         sal_uInt32 nSmallestEdgeIndex(0);
2502         double fSmallestCut;
2503         basegfx::utils::getSmallestDistancePointToPolyPolygon(GetPathPoly(), aTestPoint, nSmallestPolyIndex, nSmallestEdgeIndex, fSmallestCut);
2504 
2505         nNewHdl = NbcInsPoint(rPos, false);
2506     }
2507 
2508     ImpForceKind();
2509     return nNewHdl;
2510 }
2511 
NbcInsPoint(const Point & rPos,bool bNewObj)2512 sal_uInt32 SdrPathObj::NbcInsPoint(const Point& rPos, bool bNewObj)
2513 {
2514     sal_uInt32 nNewHdl;
2515 
2516     if(bNewObj)
2517     {
2518         basegfx::B2DPolygon aNewPoly;
2519         const basegfx::B2DPoint aPoint(rPos.X(), rPos.Y());
2520         aNewPoly.append(aPoint);
2521         aNewPoly.setClosed(IsClosed());
2522         maPathPolygon.append(aNewPoly);
2523         SetRectsDirty();
2524         nNewHdl = GetHdlCount();
2525     }
2526     else
2527     {
2528         // look for smallest distance data
2529         const basegfx::B2DPoint aTestPoint(rPos.X(), rPos.Y());
2530         sal_uInt32 nSmallestPolyIndex(0);
2531         sal_uInt32 nSmallestEdgeIndex(0);
2532         double fSmallestCut;
2533         basegfx::utils::getSmallestDistancePointToPolyPolygon(GetPathPoly(), aTestPoint, nSmallestPolyIndex, nSmallestEdgeIndex, fSmallestCut);
2534         basegfx::B2DPolygon aCandidate(GetPathPoly().getB2DPolygon(nSmallestPolyIndex));
2535         const bool bBefore(!aCandidate.isClosed() && 0 == nSmallestEdgeIndex && 0.0 == fSmallestCut);
2536         const bool bAfter(!aCandidate.isClosed() && aCandidate.count() == nSmallestEdgeIndex + 2 && 1.0 == fSmallestCut);
2537 
2538         if(bBefore)
2539         {
2540             // before first point
2541             aCandidate.insert(0, aTestPoint);
2542 
2543             if(aCandidate.areControlPointsUsed())
2544             {
2545                 if(aCandidate.isNextControlPointUsed(1))
2546                 {
2547                     aCandidate.setNextControlPoint(0, interpolate(aTestPoint, aCandidate.getB2DPoint(1), (1.0 / 3.0)));
2548                     aCandidate.setPrevControlPoint(1, interpolate(aTestPoint, aCandidate.getB2DPoint(1), (2.0 / 3.0)));
2549                 }
2550             }
2551 
2552             nNewHdl = 0;
2553         }
2554         else if(bAfter)
2555         {
2556             // after last point
2557             aCandidate.append(aTestPoint);
2558 
2559             if(aCandidate.areControlPointsUsed())
2560             {
2561                 if(aCandidate.isPrevControlPointUsed(aCandidate.count() - 2))
2562                 {
2563                     aCandidate.setNextControlPoint(aCandidate.count() - 2, interpolate(aCandidate.getB2DPoint(aCandidate.count() - 2), aTestPoint, (1.0 / 3.0)));
2564                     aCandidate.setPrevControlPoint(aCandidate.count() - 1, interpolate(aCandidate.getB2DPoint(aCandidate.count() - 2), aTestPoint, (2.0 / 3.0)));
2565                 }
2566             }
2567 
2568             nNewHdl = aCandidate.count() - 1;
2569         }
2570         else
2571         {
2572             // in between
2573             bool bSegmentSplit(false);
2574             const sal_uInt32 nNextIndex((nSmallestEdgeIndex + 1) % aCandidate.count());
2575 
2576             if(aCandidate.areControlPointsUsed())
2577             {
2578                 if(aCandidate.isNextControlPointUsed(nSmallestEdgeIndex) || aCandidate.isPrevControlPointUsed(nNextIndex))
2579                 {
2580                     bSegmentSplit = true;
2581                 }
2582             }
2583 
2584             if(bSegmentSplit)
2585             {
2586                 // rebuild original segment to get the split data
2587                 basegfx::B2DCubicBezier aBezierA, aBezierB;
2588                 const basegfx::B2DCubicBezier aBezier(
2589                     aCandidate.getB2DPoint(nSmallestEdgeIndex),
2590                     aCandidate.getNextControlPoint(nSmallestEdgeIndex),
2591                     aCandidate.getPrevControlPoint(nNextIndex),
2592                     aCandidate.getB2DPoint(nNextIndex));
2593 
2594                 // split and insert hit point
2595                 aBezier.split(fSmallestCut, &aBezierA, &aBezierB);
2596                 aCandidate.insert(nSmallestEdgeIndex + 1, aTestPoint);
2597 
2598                 // since we inserted hit point and not split point, we need to add an offset
2599                 // to the control points to get the C1 continuity we want to achieve
2600                 const basegfx::B2DVector aOffset(aTestPoint - aBezierA.getEndPoint());
2601                 aCandidate.setNextControlPoint(nSmallestEdgeIndex, aBezierA.getControlPointA() + aOffset);
2602                 aCandidate.setPrevControlPoint(nSmallestEdgeIndex + 1, aBezierA.getControlPointB() + aOffset);
2603                 aCandidate.setNextControlPoint(nSmallestEdgeIndex + 1, aBezierB.getControlPointA() + aOffset);
2604                 aCandidate.setPrevControlPoint((nSmallestEdgeIndex + 2) % aCandidate.count(), aBezierB.getControlPointB() + aOffset);
2605             }
2606             else
2607             {
2608                 aCandidate.insert(nSmallestEdgeIndex + 1, aTestPoint);
2609             }
2610 
2611             nNewHdl = nSmallestEdgeIndex + 1;
2612         }
2613 
2614         maPathPolygon.setB2DPolygon(nSmallestPolyIndex, aCandidate);
2615 
2616         // create old polygon index from it
2617         for(sal_uInt32 a(0); a < nSmallestPolyIndex; a++)
2618         {
2619             nNewHdl += GetPathPoly().getB2DPolygon(a).count();
2620         }
2621     }
2622 
2623     ImpForceKind();
2624     return nNewHdl;
2625 }
2626 
RipPoint(sal_uInt32 nHdlNum,sal_uInt32 & rNewPt0Index)2627 SdrObject* SdrPathObj::RipPoint(sal_uInt32 nHdlNum, sal_uInt32& rNewPt0Index)
2628 {
2629     SdrPathObj* pNewObj = nullptr;
2630     const basegfx::B2DPolyPolygon aLocalPolyPolygon(GetPathPoly());
2631     sal_uInt32 nPoly, nPnt;
2632 
2633     if(PolyPolygonEditor::GetRelativePolyPoint(aLocalPolyPolygon, nHdlNum, nPoly, nPnt))
2634     {
2635         if(0 == nPoly)
2636         {
2637             const basegfx::B2DPolygon& aCandidate(aLocalPolyPolygon.getB2DPolygon(nPoly));
2638             const sal_uInt32 nPointCount(aCandidate.count());
2639 
2640             if(nPointCount)
2641             {
2642                 if(IsClosed())
2643                 {
2644                     // when closed, RipPoint means to open the polygon at the selected point. To
2645                     // be able to do that, it is necessary to make the selected point the first one
2646                     basegfx::B2DPolygon aNewPolygon(basegfx::utils::makeStartPoint(aCandidate, nPnt));
2647                     SetPathPoly(basegfx::B2DPolyPolygon(aNewPolygon));
2648                     ToggleClosed();
2649 
2650                     // give back new position of old start point (historical reasons)
2651                     rNewPt0Index = (nPointCount - nPnt) % nPointCount;
2652                 }
2653                 else
2654                 {
2655                     if(nPointCount >= 3 && nPnt != 0 && nPnt + 1 < nPointCount)
2656                     {
2657                         // split in two objects at point nPnt
2658                         basegfx::B2DPolygon aSplitPolyA(aCandidate, 0, nPnt + 1);
2659                         SetPathPoly(basegfx::B2DPolyPolygon(aSplitPolyA));
2660 
2661                         pNewObj = CloneSdrObject(getSdrModelFromSdrObject());
2662                         basegfx::B2DPolygon aSplitPolyB(aCandidate, nPnt, nPointCount - nPnt);
2663                         pNewObj->SetPathPoly(basegfx::B2DPolyPolygon(aSplitPolyB));
2664                     }
2665                 }
2666             }
2667         }
2668     }
2669 
2670     return pNewObj;
2671 }
2672 
DoConvertToPolyObj(bool bBezier,bool bAddText) const2673 SdrObjectUniquePtr SdrPathObj::DoConvertToPolyObj(bool bBezier, bool bAddText) const
2674 {
2675     // #i89784# check for FontWork with activated HideContour
2676     const drawinglayer::attribute::SdrTextAttribute aText(
2677         drawinglayer::primitive2d::createNewSdrTextAttribute(GetObjectItemSet(), *getText(0)));
2678     const bool bHideContour(
2679         !aText.isDefault() && !aText.getSdrFormTextAttribute().isDefault() && aText.isHideContour());
2680 
2681     SdrObjectUniquePtr pRet;
2682 
2683     if(!bHideContour)
2684     {
2685         SdrPathObjUniquePtr pPath = ImpConvertMakeObj(GetPathPoly(), IsClosed(), bBezier);
2686 
2687         if(pPath->GetPathPoly().areControlPointsUsed())
2688         {
2689             if(!bBezier)
2690             {
2691                 // reduce all bezier curves
2692                 pPath->SetPathPoly(basegfx::utils::adaptiveSubdivideByAngle(pPath->GetPathPoly()));
2693             }
2694         }
2695         else
2696         {
2697             if(bBezier)
2698             {
2699                 // create bezier curves
2700                 pPath->SetPathPoly(basegfx::utils::expandToCurve(pPath->GetPathPoly()));
2701             }
2702         }
2703         pRet = std::move(pPath);
2704     }
2705 
2706     if(bAddText)
2707     {
2708         pRet = ImpConvertAddText(std::move(pRet), bBezier);
2709     }
2710 
2711     return pRet;
2712 }
2713 
NewGeoData() const2714 std::unique_ptr<SdrObjGeoData> SdrPathObj::NewGeoData() const
2715 {
2716     return std::make_unique<SdrPathObjGeoData>();
2717 }
2718 
SaveGeoData(SdrObjGeoData & rGeo) const2719 void SdrPathObj::SaveGeoData(SdrObjGeoData& rGeo) const
2720 {
2721     SdrTextObj::SaveGeoData(rGeo);
2722     SdrPathObjGeoData& rPGeo = static_cast<SdrPathObjGeoData&>( rGeo );
2723     rPGeo.maPathPolygon=GetPathPoly();
2724     rPGeo.meKind=meKind;
2725 }
2726 
RestoreGeoData(const SdrObjGeoData & rGeo)2727 void SdrPathObj::RestoreGeoData(const SdrObjGeoData& rGeo)
2728 {
2729     SdrTextObj::RestoreGeoData(rGeo);
2730     const SdrPathObjGeoData& rPGeo=static_cast<const SdrPathObjGeoData&>(rGeo);
2731     maPathPolygon=rPGeo.maPathPolygon;
2732     meKind=rPGeo.meKind;
2733     ImpForceKind(); // to set bClosed (among other things)
2734 }
2735 
NbcSetPathPoly(const basegfx::B2DPolyPolygon & rPathPoly)2736 void SdrPathObj::NbcSetPathPoly(const basegfx::B2DPolyPolygon& rPathPoly)
2737 {
2738     if(GetPathPoly() != rPathPoly)
2739     {
2740         maPathPolygon=rPathPoly;
2741         ImpForceKind();
2742         SetRectsDirty();
2743     }
2744 }
2745 
SetPathPoly(const basegfx::B2DPolyPolygon & rPathPoly)2746 void SdrPathObj::SetPathPoly(const basegfx::B2DPolyPolygon& rPathPoly)
2747 {
2748     if(GetPathPoly() != rPathPoly)
2749     {
2750         tools::Rectangle aBoundRect0; if (m_pUserCall!=nullptr) aBoundRect0=GetLastBoundRect();
2751         NbcSetPathPoly(rPathPoly);
2752         SetChanged();
2753         BroadcastObjectChange();
2754         SendUserCall(SdrUserCallType::Resize,aBoundRect0);
2755     }
2756 }
2757 
ToggleClosed()2758 void SdrPathObj::ToggleClosed()
2759 {
2760     tools::Rectangle aBoundRect0;
2761     if(m_pUserCall != nullptr)
2762         aBoundRect0 = GetLastBoundRect();
2763     ImpSetClosed(!IsClosed()); // set new ObjKind
2764     ImpForceKind(); // because we want Line -> Poly -> PolyLine instead of Line -> Poly -> Line
2765     SetRectsDirty();
2766     SetChanged();
2767     BroadcastObjectChange();
2768     SendUserCall(SdrUserCallType::Resize, aBoundRect0);
2769 }
2770 
impGetDAC() const2771 ImpPathForDragAndCreate& SdrPathObj::impGetDAC() const
2772 {
2773     if(!mpDAC)
2774     {
2775         const_cast<SdrPathObj*>(this)->mpDAC.reset(new ImpPathForDragAndCreate(*const_cast<SdrPathObj*>(this)));
2776     }
2777 
2778     return *mpDAC;
2779 }
2780 
2781 
2782 // transformation interface for StarOfficeAPI. This implements support for
2783 // homogeneous 3x3 matrices containing the transformation of the SdrObject. At the
2784 // moment it contains a shearX, rotation and translation, but for setting all linear
2785 // transforms like Scale, ShearX, ShearY, Rotate and Translate are supported.
2786 
2787 
2788 // gets base transformation and rectangle of object. If it's an SdrPathObj it fills the PolyPolygon
2789 // with the base geometry and returns TRUE. Otherwise it returns FALSE.
TRGetBaseGeometry(basegfx::B2DHomMatrix & rMatrix,basegfx::B2DPolyPolygon & rPolyPolygon) const2790 bool SdrPathObj::TRGetBaseGeometry(basegfx::B2DHomMatrix& rMatrix, basegfx::B2DPolyPolygon& rPolyPolygon) const
2791 {
2792     double fRotate(0.0);
2793     double fShearX(0.0);
2794     basegfx::B2DTuple aScale(1.0, 1.0);
2795     basegfx::B2DTuple aTranslate(0.0, 0.0);
2796 
2797     if(GetPathPoly().count())
2798     {
2799         // copy geometry
2800         basegfx::B2DHomMatrix aMoveToZeroMatrix;
2801         rPolyPolygon = GetPathPoly();
2802 
2803         if(OBJ_LINE == meKind)
2804         {
2805             // ignore shear and rotate, just use scale and translate
2806             OSL_ENSURE(GetPathPoly().count() > 0 && GetPathPoly().getB2DPolygon(0).count() > 1, "OBJ_LINE with too few polygons (!)");
2807             // #i72287# use polygon without control points for range calculation. Do not change rPolyPolygon
2808             // itself, else this method will no longer return the full polygon information (curve will
2809             // be lost)
2810             const basegfx::B2DRange aPolyRangeNoCurve(basegfx::utils::getRange(rPolyPolygon));
2811             aScale = aPolyRangeNoCurve.getRange();
2812             aTranslate = aPolyRangeNoCurve.getMinimum();
2813 
2814             // define matrix for move polygon to zero point
2815             aMoveToZeroMatrix.translate(-aTranslate.getX(), -aTranslate.getY());
2816         }
2817         else
2818         {
2819             if(aGeo.nShearAngle || aGeo.nRotationAngle)
2820             {
2821                 // get rotate and shear in drawingLayer notation
2822                 fRotate = aGeo.nRotationAngle.get() * F_PI18000;
2823                 fShearX = aGeo.nShearAngle.get() * F_PI18000;
2824 
2825                 // build mathematically correct (negative shear and rotate) object transform
2826                 // containing shear and rotate to extract unsheared, unrotated polygon
2827                 basegfx::B2DHomMatrix aObjectMatrix;
2828                 aObjectMatrix.shearX(-aGeo.mfTanShearAngle);
2829                 aObjectMatrix.rotate((36000 - aGeo.nRotationAngle.get()) * F_PI18000);
2830 
2831                 // create inverse from it and back-transform polygon
2832                 basegfx::B2DHomMatrix aInvObjectMatrix(aObjectMatrix);
2833                 aInvObjectMatrix.invert();
2834                 rPolyPolygon.transform(aInvObjectMatrix);
2835 
2836                 // get range from unsheared, unrotated polygon and extract scale and translate.
2837                 // transform topLeft from it back to transformed state to get original
2838                 // topLeft (rotation center)
2839                 // #i72287# use polygon without control points for range calculation. Do not change rPolyPolygon
2840                 // itself, else this method will no longer return the full polygon information (curve will
2841                 // be lost)
2842                 const basegfx::B2DRange aCorrectedRangeNoCurve(basegfx::utils::getRange(rPolyPolygon));
2843                 aTranslate = aObjectMatrix * aCorrectedRangeNoCurve.getMinimum();
2844                 aScale = aCorrectedRangeNoCurve.getRange();
2845 
2846                 // define matrix for move polygon to zero point
2847                 // #i112280# Added missing minus for Y-Translation
2848                 aMoveToZeroMatrix.translate(-aCorrectedRangeNoCurve.getMinX(), -aCorrectedRangeNoCurve.getMinY());
2849             }
2850             else
2851             {
2852                 // get scale and translate from unsheared, unrotated polygon
2853                 // #i72287# use polygon without control points for range calculation. Do not change rPolyPolygon
2854                 // itself, else this method will no longer return the full polygon information (curve will
2855                 // be lost)
2856                 const basegfx::B2DRange aPolyRangeNoCurve(basegfx::utils::getRange(rPolyPolygon));
2857                 aScale = aPolyRangeNoCurve.getRange();
2858                 aTranslate = aPolyRangeNoCurve.getMinimum();
2859 
2860                 // define matrix for move polygon to zero point
2861                 aMoveToZeroMatrix.translate(-aTranslate.getX(), -aTranslate.getY());
2862             }
2863         }
2864 
2865         // move polygon to zero point with pre-defined matrix
2866         rPolyPolygon.transform(aMoveToZeroMatrix);
2867     }
2868 
2869     // position maybe relative to anchorpos, convert
2870     if( getSdrModelFromSdrObject().IsWriter() )
2871     {
2872         if(GetAnchorPos().X() || GetAnchorPos().Y())
2873         {
2874             aTranslate -= basegfx::B2DTuple(GetAnchorPos().X(), GetAnchorPos().Y());
2875         }
2876     }
2877 
2878     // build return value matrix
2879     rMatrix = basegfx::utils::createScaleShearXRotateTranslateB2DHomMatrix(
2880         aScale,
2881         basegfx::fTools::equalZero(fShearX) ? 0.0 : tan(fShearX),
2882         basegfx::fTools::equalZero(fRotate) ? 0.0 : -fRotate,
2883         aTranslate);
2884 
2885     return true;
2886 }
2887 
SetHandleScale(bool bHandleScale)2888 void SdrPathObj::SetHandleScale(bool bHandleScale)
2889 {
2890     mbHandleScale = bHandleScale;
2891 }
2892 
2893 // Sets the base geometry of the object using infos contained in the homogeneous 3x3 matrix.
2894 // If it's an SdrPathObj it will use the provided geometry information. The Polygon has
2895 // to use (0,0) as upper left and will be scaled to the given size in the matrix.
TRSetBaseGeometry(const basegfx::B2DHomMatrix & rMatrix,const basegfx::B2DPolyPolygon & rPolyPolygon)2896 void SdrPathObj::TRSetBaseGeometry(const basegfx::B2DHomMatrix& rMatrix, const basegfx::B2DPolyPolygon& rPolyPolygon)
2897 {
2898     // break up matrix
2899     basegfx::B2DTuple aScale;
2900     basegfx::B2DTuple aTranslate;
2901     double fRotate, fShearX;
2902     rMatrix.decompose(aScale, aTranslate, fRotate, fShearX);
2903 
2904     // #i75086# Old DrawingLayer (GeoStat and geometry) does not support holding negative scalings
2905     // in X and Y which equal a 180 degree rotation. Recognize it and react accordingly
2906     if(basegfx::fTools::less(aScale.getX(), 0.0) && basegfx::fTools::less(aScale.getY(), 0.0))
2907     {
2908         aScale.setX(fabs(aScale.getX()));
2909         aScale.setY(fabs(aScale.getY()));
2910         fRotate = fmod(fRotate + F_PI, F_2PI);
2911     }
2912 
2913     // copy poly
2914     basegfx::B2DPolyPolygon aNewPolyPolygon(rPolyPolygon);
2915 
2916     // reset object shear and rotations
2917     aGeo.nRotationAngle = 0_deg100;
2918     aGeo.RecalcSinCos();
2919     aGeo.nShearAngle = 0_deg100;
2920     aGeo.RecalcTan();
2921 
2922     if( getSdrModelFromSdrObject().IsWriter() )
2923     {
2924         // if anchor is used, make position relative to it
2925         if(GetAnchorPos().X() || GetAnchorPos().Y())
2926         {
2927             aTranslate += basegfx::B2DTuple(GetAnchorPos().X(), GetAnchorPos().Y());
2928         }
2929     }
2930 
2931     // create transformation for polygon, set values at aGeo direct
2932     basegfx::B2DHomMatrix aTransform;
2933 
2934     // #i75086#
2935     // Given polygon is already scaled (for historical reasons), but not mirrored yet.
2936     // Thus, when scale is negative in X or Y, apply the needed mirroring accordingly.
2937     double fScaleX(basegfx::fTools::less(aScale.getX(), 0.0) ? -1.0 : 1.0);
2938     double fScaleY(basegfx::fTools::less(aScale.getY(), 0.0) ? -1.0 : 1.0);
2939 
2940     // tdf#98565, tdf#98584. While loading a shape, svg:width and svg:height is used to scale
2941     // the polygon. But draw:transform might introduce additional scaling factors, which need to
2942     // be applied to the polygon too, so aScale cannot be ignored while loading.
2943     // I use "maSnapRect.IsEmpty() && GetPathPoly().count()" to detect this case. Any better
2944     // idea? The behavior in other cases is the same as it was before this fix.
2945     if (maSnapRect.IsEmpty() && GetPathPoly().count() && mbHandleScale)
2946     {
2947         // In case of a Writer document, the scaling factors were converted to twips. That is not
2948         // correct here, because width and height are already in the points coordinates and aScale
2949         // is no length but only a factor here. Convert back.
2950         if (getSdrModelFromSdrObject().IsWriter())
2951         {
2952             aScale.setX(o3tl::convert(aScale.getX(), o3tl::Length::twip, o3tl::Length::mm100));
2953             aScale.setY(o3tl::convert(aScale.getY(), o3tl::Length::twip, o3tl::Length::mm100));
2954         }
2955         fScaleX *= fabs(aScale.getX());
2956         fScaleY *= fabs(aScale.getY());
2957     }
2958 
2959     if (fScaleX != 1.0 || fScaleY != 1.0)
2960         aTransform.scale(fScaleX, fScaleY);
2961 
2962     if(!basegfx::fTools::equalZero(fShearX))
2963     {
2964         aTransform.shearX(tan(-atan(fShearX)));
2965         aGeo.nShearAngle = Degree100(FRound(atan(fShearX) / F_PI18000));
2966         aGeo.RecalcTan();
2967     }
2968 
2969     if(!basegfx::fTools::equalZero(fRotate))
2970     {
2971         // #i78696#
2972         // fRotate is mathematically correct for linear transformations, so it's
2973         // the one to use for the geometry change
2974         aTransform.rotate(fRotate);
2975 
2976         // #i78696#
2977         // fRotate is mathematically correct, but aGeoStat.nRotationAngle is
2978         // mirrored -> mirror value here
2979         aGeo.nRotationAngle = NormAngle36000(Degree100(FRound(-fRotate / F_PI18000)));
2980         aGeo.RecalcSinCos();
2981     }
2982 
2983     if(!aTranslate.equalZero())
2984     {
2985         // #i39529# absolute positioning, so get current position (without control points (!))
2986         const basegfx::B2DRange aCurrentRange(basegfx::utils::getRange(aNewPolyPolygon));
2987         aTransform.translate(aTranslate.getX() - aCurrentRange.getMinX(), aTranslate.getY() - aCurrentRange.getMinY());
2988     }
2989 
2990     // transform polygon and trigger change
2991     aNewPolyPolygon.transform(aTransform);
2992     SetPathPoly(aNewPolyPolygon);
2993 }
2994 
2995 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
2996