xref: /AOO41X/main/svx/source/engine3d/dragmt3d.cxx (revision ff0525f24f03981d56b7579b645949f111420994)
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20  *************************************************************/
21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_svx.hxx"
26 
27 #include <dragmt3d.hxx>
28 #include <tools/shl.hxx>
29 #include <svx/svdpagv.hxx>
30 #include <svx/dialmgr.hxx>
31 #include <svx/svddrgmt.hxx>
32 #include <svx/svdtrans.hxx>
33 #include <svx/obj3d.hxx>
34 #include <svx/polysc3d.hxx>
35 #include <svx/e3dundo.hxx>
36 #include <svx/dialogs.hrc>
37 #include <svx/sdr/overlay/overlaypolypolygon.hxx>
38 #include <svx/sdr/overlay/overlaymanager.hxx>
39 #include <basegfx/polygon/b2dpolypolygontools.hxx>
40 #include <svx/sdr/contact/viewcontactofe3dscene.hxx>
41 #include <drawinglayer/geometry/viewinformation3d.hxx>
42 #include <svx/e3dsceneupdater.hxx>
43 
44 TYPEINIT1(E3dDragMethod, SdrDragMethod);
45 
46 /*************************************************************************
47 |*
48 |* Konstruktor aller 3D-DragMethoden
49 |*
50 \************************************************************************/
51 
52 E3dDragMethod::E3dDragMethod (
53     SdrDragView &_rView,
54     const SdrMarkList& rMark,
55     E3dDragConstraint eConstr,
56     sal_Bool bFull)
57 :   SdrDragMethod(_rView),
58     meConstraint(eConstr),
59     mbMoveFull(bFull),
60     mbMovedAtAll(sal_False)
61 {
62     // Fuer alle in der selektion befindlichen 3D-Objekte
63     // eine Unit anlegen
64     const long nCnt(rMark.GetMarkCount());
65     static bool bDoInvalidate(false);
66     long nObjs(0);
67 
68     if(mbMoveFull)
69     {
70         // for non-visible 3D objects fallback to wireframe interaction
71         bool bInvisibleObjects(false);
72 
73         for(nObjs = 0;!bInvisibleObjects && nObjs < nCnt;nObjs++)
74         {
75             E3dObject* pE3dObj = dynamic_cast< E3dObject* >(rMark.GetMark(nObjs)->GetMarkedSdrObj());
76 
77             if(pE3dObj)
78             {
79                 if(!pE3dObj->HasFillStyle() && !pE3dObj->HasLineStyle())
80                 {
81                     bInvisibleObjects = true;
82                 }
83             }
84         }
85 
86         if(bInvisibleObjects)
87         {
88             mbMoveFull = false;
89         }
90     }
91 
92     for(nObjs = 0;nObjs < nCnt;nObjs++)
93     {
94         E3dObject* pE3dObj = dynamic_cast< E3dObject* >(rMark.GetMark(nObjs)->GetMarkedSdrObj());
95 
96         if(pE3dObj)
97         {
98             // fill new interaction unit
99             E3dDragMethodUnit aNewUnit;
100             aNewUnit.mp3DObj = pE3dObj;
101 
102             // get transformations
103             aNewUnit.maInitTransform = aNewUnit.maTransform = pE3dObj->GetTransform();
104 
105             if(pE3dObj->GetParentObj())
106             {
107                 // get transform between object and world, normally scene transform
108                 aNewUnit.maInvDisplayTransform = aNewUnit.maDisplayTransform = pE3dObj->GetParentObj()->GetFullTransform();
109                 aNewUnit.maInvDisplayTransform.invert();
110             }
111 
112             // SnapRects der beteiligten Objekte invalidieren, um eine
113             // Neuberechnung beim Setzen der Marker zu erzwingen
114             if(bDoInvalidate)
115             {
116                 pE3dObj->SetRectsDirty();
117             }
118 
119             if(!mbMoveFull)
120             {
121                 // create wireframe visualisation for parent coordinate system
122                 aNewUnit.maWireframePoly.clear();
123                 aNewUnit.maWireframePoly = pE3dObj->CreateWireframe();
124                 aNewUnit.maWireframePoly.transform(aNewUnit.maTransform);
125             }
126 
127             // FullBound ermitteln
128             maFullBound.Union(pE3dObj->GetSnapRect());
129 
130             // Unit einfuegen
131             maGrp.push_back(aNewUnit);
132         }
133     }
134 }
135 
136 /*************************************************************************
137 |*
138 \************************************************************************/
139 
140 void E3dDragMethod::TakeSdrDragComment(XubString& /*rStr*/) const
141 {
142 }
143 
144 /*************************************************************************
145 |*
146 |* Erstelle das Drahtgittermodel fuer alle Aktionen
147 |*
148 \************************************************************************/
149 
150 bool E3dDragMethod::BeginSdrDrag()
151 {
152     if(E3DDRAG_CONSTR_Z == meConstraint)
153     {
154         const sal_uInt32 nCnt(maGrp.size());
155         DragStat().Ref1() = maFullBound.Center();
156 
157         for(sal_uInt32 nOb(0); nOb < nCnt; nOb++)
158         {
159             E3dDragMethodUnit& rCandidate = maGrp[nOb];
160             rCandidate.mnStartAngle = GetAngle(DragStat().GetStart() - DragStat().GetRef1());
161             rCandidate.mnLastAngle = 0;
162         }
163     }
164     else
165     {
166         maLastPos = DragStat().GetStart();
167     }
168 
169     if(!mbMoveFull)
170     {
171         Show();
172     }
173 
174     return sal_True;
175 }
176 
177 /*************************************************************************
178 |*
179 |* Schluss
180 |*
181 \************************************************************************/
182 
183 bool E3dDragMethod::EndSdrDrag(bool /*bCopy*/)
184 {
185     const sal_uInt32 nCnt(maGrp.size());
186 
187     if(!mbMoveFull)
188     {
189         // WireFrame ausblenden
190         Hide();
191     }
192 
193     // Alle Transformationen anwenden und UnDo's anlegen
194     if(mbMovedAtAll)
195     {
196         const bool bUndo = getSdrDragView().IsUndoEnabled();
197         if( bUndo )
198             getSdrDragView().BegUndo(SVX_RESSTR(RID_SVX_3D_UNDO_ROTATE));
199         sal_uInt32 nOb(0);
200 
201         for(nOb=0;nOb<nCnt;nOb++)
202         {
203             E3dDragMethodUnit& rCandidate = maGrp[nOb];
204             E3DModifySceneSnapRectUpdater aUpdater(rCandidate.mp3DObj);
205             rCandidate.mp3DObj->SetTransform(rCandidate.maTransform);
206             if( bUndo )
207             {
208                 getSdrDragView().AddUndo(new E3dRotateUndoAction(rCandidate.mp3DObj->GetModel(),
209                     rCandidate.mp3DObj, rCandidate.maInitTransform,
210                     rCandidate.maTransform));
211             }
212         }
213         if( bUndo )
214             getSdrDragView().EndUndo();
215     }
216 
217     return sal_True;
218 }
219 
220 /*************************************************************************
221 |*
222 |* Abbruch
223 |*
224 \************************************************************************/
225 
226 void E3dDragMethod::CancelSdrDrag()
227 {
228     if(mbMoveFull)
229     {
230         if(mbMovedAtAll)
231         {
232             const sal_uInt32 nCnt(maGrp.size());
233 
234             for(sal_uInt32 nOb(0); nOb < nCnt; nOb++)
235             {
236                 // Transformation restaurieren
237                 E3dDragMethodUnit& rCandidate = maGrp[nOb];
238                 E3DModifySceneSnapRectUpdater aUpdater(rCandidate.mp3DObj);
239                 rCandidate.mp3DObj->SetTransform(rCandidate.maInitTransform);
240             }
241         }
242     }
243     else
244     {
245         // WireFrame ausblenden
246         Hide();
247     }
248 }
249 
250 /*************************************************************************
251 |*
252 |* Gemeinsames MoveSdrDrag()
253 |*
254 \************************************************************************/
255 
256 void E3dDragMethod::MoveSdrDrag(const Point& /*rPnt*/)
257 {
258     mbMovedAtAll = true;
259 }
260 
261 /*************************************************************************
262 |*
263 |* Zeichne das Drahtgittermodel
264 |*
265 \************************************************************************/
266 
267 // for migration from XOR to overlay
268 void E3dDragMethod::CreateOverlayGeometry(::sdr::overlay::OverlayManager& rOverlayManager)
269 {
270     const sal_uInt32 nCnt(maGrp.size());
271     basegfx::B2DPolyPolygon aResult;
272 
273     for(sal_uInt32 nOb(0); nOb < nCnt; nOb++)
274     {
275         E3dDragMethodUnit& rCandidate = maGrp[nOb];
276         SdrPageView* pPV = getSdrDragView().GetSdrPageView();
277 
278         if(pPV && pPV->HasMarkedObjPageView())
279         {
280             const basegfx::B3DPolyPolygon aCandidate(rCandidate.maWireframePoly);
281             const sal_uInt32 nPlyCnt(aCandidate.count());
282 
283             if(nPlyCnt)
284             {
285                 const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(rCandidate.mp3DObj->GetScene()->GetViewContact());
286                 const drawinglayer::geometry::ViewInformation3D aViewInfo3D(rVCScene.getViewInformation3D());
287                 const basegfx::B3DHomMatrix aWorldToView(aViewInfo3D.getDeviceToView() * aViewInfo3D.getProjection() * aViewInfo3D.getOrientation());
288                 const basegfx::B3DHomMatrix aTransform(aWorldToView * rCandidate.maDisplayTransform);
289 
290                 // transform to relative scene coordinates
291                 basegfx::B2DPolyPolygon aPolyPolygon(basegfx::tools::createB2DPolyPolygonFromB3DPolyPolygon(aCandidate, aTransform));
292 
293                 // transform to 2D view coordinates
294                 aPolyPolygon.transform(rVCScene.getObjectTransformation());
295 
296                 aResult.append(aPolyPolygon);
297             }
298         }
299     }
300 
301     if(aResult.count())
302     {
303         ::sdr::overlay::OverlayPolyPolygonStriped* pNew = new ::sdr::overlay::OverlayPolyPolygonStriped(aResult);
304         rOverlayManager.add(*pNew);
305         addToOverlayObjectList(*pNew);
306     }
307 }
308 
309 /*************************************************************************
310 
311                                 E3dDragRotate
312 
313 *************************************************************************/
314 
315 TYPEINIT1(E3dDragRotate, E3dDragMethod);
316 
317 E3dDragRotate::E3dDragRotate(SdrDragView &_rView,
318     const SdrMarkList& rMark,
319     E3dDragConstraint eConstr,
320     sal_Bool bFull)
321 :   E3dDragMethod(_rView, rMark, eConstr, bFull)
322 {
323     // Zentrum aller selektierten Objekte in Augkoordinaten holen
324     const sal_uInt32 nCnt(maGrp.size());
325 
326     if(nCnt)
327     {
328         const E3dScene *pScene = maGrp[0].mp3DObj->GetScene();
329 
330         if(pScene)
331         {
332             const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(pScene->GetViewContact());
333             const drawinglayer::geometry::ViewInformation3D aViewInfo3D(rVCScene.getViewInformation3D());
334 
335             for(sal_uInt32 nOb(0); nOb < nCnt; nOb++)
336             {
337                 E3dDragMethodUnit& rCandidate = maGrp[nOb];
338                 basegfx::B3DPoint aObjCenter = rCandidate.mp3DObj->GetBoundVolume().getCenter();
339                 const basegfx::B3DHomMatrix aTransform(aViewInfo3D.getOrientation() * rCandidate.maDisplayTransform * rCandidate.maInitTransform);
340 
341                 aObjCenter = aTransform * aObjCenter;
342                 maGlobalCenter += aObjCenter;
343             }
344 
345             // Teilen durch Anzahl
346             if(nCnt > 1)
347             {
348                 maGlobalCenter /= (double)nCnt;
349             }
350 
351             // get rotate center and transform to 3D eye coordinates
352             basegfx::B2DPoint aRotCenter2D(Ref1().X(), Ref1().Y());
353 
354             // from world to relative scene using inverse getObjectTransformation()
355             basegfx::B2DHomMatrix aInverseObjectTransform(rVCScene.getObjectTransformation());
356             aInverseObjectTransform.invert();
357             aRotCenter2D = aInverseObjectTransform * aRotCenter2D;
358 
359             // from 3D view to 3D eye
360             basegfx::B3DPoint aRotCenter3D(aRotCenter2D.getX(), aRotCenter2D.getY(), 0.0);
361             basegfx::B3DHomMatrix aInverseViewToEye(aViewInfo3D.getDeviceToView() * aViewInfo3D.getProjection());
362             aInverseViewToEye.invert();
363             aRotCenter3D = aInverseViewToEye * aRotCenter3D;
364 
365         // X,Y des RotCenter und Tiefe der gemeinsamen Objektmitte aus
366         // Rotationspunkt im Raum benutzen
367             maGlobalCenter.setX(aRotCenter3D.getX());
368             maGlobalCenter.setY(aRotCenter3D.getY());
369         }
370     }
371 }
372 
373 /*************************************************************************
374 |*
375 |* Das Objekt wird bewegt, bestimme die Winkel
376 |*
377 \************************************************************************/
378 
379 void E3dDragRotate::MoveSdrDrag(const Point& rPnt)
380 {
381     // call parent
382     E3dDragMethod::MoveSdrDrag(rPnt);
383 
384     if(DragStat().CheckMinMoved(rPnt))
385     {
386         // Modifier holen
387         sal_uInt16 nModifier = 0;
388         if(getSdrDragView().ISA(E3dView))
389         {
390             const MouseEvent& rLastMouse = ((E3dView&)getSdrDragView()).GetMouseEvent();
391             nModifier = rLastMouse.GetModifier();
392         }
393 
394         // Alle Objekte rotieren
395         const sal_uInt32 nCnt(maGrp.size());
396 
397         for(sal_uInt32 nOb(0); nOb < nCnt; nOb++)
398         {
399             // Rotationswinkel bestimmen
400             double fWAngle, fHAngle;
401             E3dDragMethodUnit& rCandidate = maGrp[nOb];
402 
403             if(E3DDRAG_CONSTR_Z == meConstraint)
404             {
405                 fWAngle = NormAngle360(GetAngle(rPnt - DragStat().GetRef1()) -
406                     rCandidate.mnStartAngle) - rCandidate.mnLastAngle;
407                 rCandidate.mnLastAngle = (long)fWAngle + rCandidate.mnLastAngle;
408                 fWAngle /= 100.0;
409                 fHAngle = 0.0;
410             }
411             else
412             {
413                 fWAngle = 90.0 * (double)(rPnt.X() - maLastPos.X())
414                     / (double)maFullBound.GetWidth();
415                 fHAngle = 90.0 * (double)(rPnt.Y() - maLastPos.Y())
416                     / (double)maFullBound.GetHeight();
417             }
418             long nSnap = 0;
419 
420             if(!getSdrDragView().IsRotateAllowed(sal_False))
421                 nSnap = 90;
422 
423             if(nSnap != 0)
424             {
425                 fWAngle = (double)(((long) fWAngle + nSnap/2) / nSnap * nSnap);
426                 fHAngle = (double)(((long) fHAngle + nSnap/2) / nSnap * nSnap);
427             }
428 
429             // nach radiant
430             fWAngle *= F_PI180;
431             fHAngle *= F_PI180;
432 
433             // Transformation bestimmen
434             basegfx::B3DHomMatrix aRotMat;
435             if(E3DDRAG_CONSTR_Y & meConstraint)
436             {
437                 if(nModifier & KEY_MOD2)
438                     aRotMat.rotate(0.0, 0.0, fWAngle);
439                 else
440                     aRotMat.rotate(0.0, fWAngle, 0.0);
441             }
442             else if(E3DDRAG_CONSTR_Z & meConstraint)
443             {
444                 if(nModifier & KEY_MOD2)
445                     aRotMat.rotate(0.0, fWAngle, 0.0);
446                 else
447                     aRotMat.rotate(0.0, 0.0, fWAngle);
448             }
449             if(E3DDRAG_CONSTR_X & meConstraint)
450             {
451                 aRotMat.rotate(fHAngle, 0.0, 0.0);
452             }
453 
454             // Transformation in Eye-Koordinaten, dort rotieren
455             // und zurueck
456             const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(rCandidate.mp3DObj->GetScene()->GetViewContact());
457             const drawinglayer::geometry::ViewInformation3D aViewInfo3D(rVCScene.getViewInformation3D());
458             basegfx::B3DHomMatrix aInverseOrientation(aViewInfo3D.getOrientation());
459             aInverseOrientation.invert();
460 
461             basegfx::B3DHomMatrix aTransMat(rCandidate.maDisplayTransform);
462             aTransMat *= aViewInfo3D.getOrientation();
463             aTransMat.translate(-maGlobalCenter.getX(), -maGlobalCenter.getY(), -maGlobalCenter.getZ());
464             aTransMat *= aRotMat;
465             aTransMat.translate(maGlobalCenter.getX(), maGlobalCenter.getY(), maGlobalCenter.getZ());
466             aTransMat *= aInverseOrientation;
467             aTransMat *= rCandidate.maInvDisplayTransform;
468 
469             // ...und anwenden
470             rCandidate.maTransform *= aTransMat;
471 
472             if(mbMoveFull)
473             {
474                 E3DModifySceneSnapRectUpdater aUpdater(rCandidate.mp3DObj);
475                 rCandidate.mp3DObj->SetTransform(rCandidate.maTransform);
476             }
477             else
478             {
479                 Hide();
480                 rCandidate.maWireframePoly.transform(aTransMat);
481                 Show();
482             }
483         }
484         maLastPos = rPnt;
485         DragStat().NextMove(rPnt);
486     }
487 }
488 
489 /*************************************************************************
490 |*
491 \************************************************************************/
492 
493 Pointer E3dDragRotate::GetSdrDragPointer() const
494 {
495     return Pointer(POINTER_ROTATE);
496 }
497 
498 /*************************************************************************
499 |*
500 |* E3dDragMove
501 |* Diese DragMethod wird nur bei Translationen innerhalb von 3D-Scenen
502 |* benoetigt. Wird eine 3D-Scene selbst verschoben, so wird diese DragMethod
503 |* nicht verwendet.
504 |*
505 \************************************************************************/
506 
507 TYPEINIT1(E3dDragMove, E3dDragMethod);
508 
509 E3dDragMove::E3dDragMove(SdrDragView &_rView,
510     const SdrMarkList& rMark,
511     SdrHdlKind eDrgHdl,
512     E3dDragConstraint eConstr,
513     sal_Bool bFull)
514 :   E3dDragMethod(_rView, rMark, eConstr, bFull),
515     meWhatDragHdl(eDrgHdl)
516 {
517     switch(meWhatDragHdl)
518     {
519         case HDL_LEFT:
520             maScaleFixPos = maFullBound.RightCenter();
521             break;
522         case HDL_RIGHT:
523             maScaleFixPos = maFullBound.LeftCenter();
524             break;
525         case HDL_UPPER:
526             maScaleFixPos = maFullBound.BottomCenter();
527             break;
528         case HDL_LOWER:
529             maScaleFixPos = maFullBound.TopCenter();
530             break;
531         case HDL_UPLFT:
532             maScaleFixPos = maFullBound.BottomRight();
533             break;
534         case HDL_UPRGT:
535             maScaleFixPos = maFullBound.BottomLeft();
536             break;
537         case HDL_LWLFT:
538             maScaleFixPos = maFullBound.TopRight();
539             break;
540         case HDL_LWRGT:
541             maScaleFixPos = maFullBound.TopLeft();
542             break;
543         default:
544             // Bewegen des Objektes, HDL_MOVE
545             break;
546     }
547 
548     // Override wenn IsResizeAtCenter()
549     if(getSdrDragView().IsResizeAtCenter())
550     {
551         meWhatDragHdl = HDL_USER;
552         maScaleFixPos = maFullBound.Center();
553     }
554 }
555 
556 /*************************************************************************
557 |*
558 |* Das Objekt wird bewegt, bestimme die Translation
559 |*
560 \************************************************************************/
561 
562 void E3dDragMove::MoveSdrDrag(const Point& rPnt)
563 {
564     // call parent
565     E3dDragMethod::MoveSdrDrag(rPnt);
566 
567     if(DragStat().CheckMinMoved(rPnt))
568     {
569         if(HDL_MOVE == meWhatDragHdl)
570         {
571             // Translation
572             // Bewegungsvektor bestimmen
573             basegfx::B3DPoint aGlobalMoveHead((double)(rPnt.X() - maLastPos.X()), (double)(rPnt.Y() - maLastPos.Y()), 32768.0);
574             basegfx::B3DPoint aGlobalMoveTail(0.0, 0.0, 32768.0);
575             const sal_uInt32 nCnt(maGrp.size());
576 
577             // Modifier holen
578             sal_uInt16 nModifier(0);
579 
580             if(getSdrDragView().ISA(E3dView))
581             {
582                 const MouseEvent& rLastMouse = ((E3dView&)getSdrDragView()).GetMouseEvent();
583                 nModifier = rLastMouse.GetModifier();
584             }
585 
586             for(sal_uInt32 nOb(0); nOb < nCnt; nOb++)
587             {
588                 E3dDragMethodUnit& rCandidate = maGrp[nOb];
589                 const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(rCandidate.mp3DObj->GetScene()->GetViewContact());
590                 const drawinglayer::geometry::ViewInformation3D aViewInfo3D(rVCScene.getViewInformation3D());
591 
592                 // move coor from 2d world to 3d Eye
593                 basegfx::B2DPoint aGlobalMoveHead2D((double)(rPnt.X() - maLastPos.X()), (double)(rPnt.Y() - maLastPos.Y()));
594                 basegfx::B2DPoint aGlobalMoveTail2D(0.0, 0.0);
595                 basegfx::B2DHomMatrix aInverseSceneTransform(rVCScene.getObjectTransformation());
596 
597                 aInverseSceneTransform.invert();
598                 aGlobalMoveHead2D = aInverseSceneTransform * aGlobalMoveHead2D;
599                 aGlobalMoveTail2D = aInverseSceneTransform * aGlobalMoveTail2D;
600 
601                 basegfx::B3DPoint aMoveHead3D(aGlobalMoveHead2D.getX(), aGlobalMoveHead2D.getY(), 0.5);
602                 basegfx::B3DPoint aMoveTail3D(aGlobalMoveTail2D.getX(), aGlobalMoveTail2D.getY(), 0.5);
603                 basegfx::B3DHomMatrix aInverseViewToEye(aViewInfo3D.getDeviceToView() * aViewInfo3D.getProjection());
604                 aInverseViewToEye.invert();
605 
606                 aMoveHead3D = aInverseViewToEye * aMoveHead3D;
607                 aMoveTail3D = aInverseViewToEye * aMoveTail3D;
608 
609                 // eventually switch movement from XY to XZ plane
610                 if(nModifier & KEY_MOD2)
611                 {
612                     double fZwi = aMoveHead3D.getY();
613                     aMoveHead3D.setY(aMoveHead3D.getZ());
614                     aMoveHead3D.setZ(fZwi);
615 
616                     fZwi = aMoveTail3D.getY();
617                     aMoveTail3D.setY(aMoveTail3D.getZ());
618                     aMoveTail3D.setZ(fZwi);
619                 }
620 
621                 // Bewegungsvektor von Aug-Koordinaten nach Parent-Koordinaten
622                 basegfx::B3DHomMatrix aInverseOrientation(aViewInfo3D.getOrientation());
623                 aInverseOrientation.invert();
624                 basegfx::B3DHomMatrix aCompleteTrans(rCandidate.maInvDisplayTransform * aInverseOrientation);
625 
626                 aMoveHead3D = aCompleteTrans * aMoveHead3D;
627                 aMoveTail3D = aCompleteTrans* aMoveTail3D;
628 
629                 // build transformation
630                 basegfx::B3DHomMatrix aTransMat;
631                 basegfx::B3DPoint aTranslate(aMoveHead3D - aMoveTail3D);
632                 aTransMat.translate(aTranslate.getX(), aTranslate.getY(), aTranslate.getZ());
633 
634                 // ...and apply
635                 rCandidate.maTransform *= aTransMat;
636 
637                 if(mbMoveFull)
638                 {
639                     E3DModifySceneSnapRectUpdater aUpdater(rCandidate.mp3DObj);
640                     rCandidate.mp3DObj->SetTransform(rCandidate.maTransform);
641                 }
642                 else
643                 {
644                     Hide();
645                     rCandidate.maWireframePoly.transform(aTransMat);
646                     Show();
647                 }
648             }
649         }
650         else
651         {
652             // Skalierung
653             // Skalierungsvektor bestimmen
654             Point aStartPos = DragStat().GetStart();
655             const sal_uInt32 nCnt(maGrp.size());
656 
657             for(sal_uInt32 nOb(0); nOb < nCnt; nOb++)
658             {
659                 E3dDragMethodUnit& rCandidate = maGrp[nOb];
660                 const basegfx::B3DPoint aObjectCenter(rCandidate.mp3DObj->GetBoundVolume().getCenter());
661 
662                 // transform from 2D world view to 3D eye
663                 const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(rCandidate.mp3DObj->GetScene()->GetViewContact());
664                 const drawinglayer::geometry::ViewInformation3D aViewInfo3D(rVCScene.getViewInformation3D());
665 
666                 basegfx::B2DPoint aGlobalScaleStart2D((double)(aStartPos.X()), (double)(aStartPos.Y()));
667                 basegfx::B2DPoint aGlobalScaleNext2D((double)(rPnt.X()), (double)(rPnt.Y()));
668                 basegfx::B2DPoint aGlobalScaleFixPos2D((double)(maScaleFixPos.X()), (double)(maScaleFixPos.Y()));
669                 basegfx::B2DHomMatrix aInverseSceneTransform(rVCScene.getObjectTransformation());
670 
671                 aInverseSceneTransform.invert();
672                 aGlobalScaleStart2D = aInverseSceneTransform * aGlobalScaleStart2D;
673                 aGlobalScaleNext2D = aInverseSceneTransform * aGlobalScaleNext2D;
674                 aGlobalScaleFixPos2D = aInverseSceneTransform * aGlobalScaleFixPos2D;
675 
676                 basegfx::B3DPoint aGlobalScaleStart3D(aGlobalScaleStart2D.getX(), aGlobalScaleStart2D.getY(), aObjectCenter.getZ());
677                 basegfx::B3DPoint aGlobalScaleNext3D(aGlobalScaleNext2D.getX(), aGlobalScaleNext2D.getY(), aObjectCenter.getZ());
678                 basegfx::B3DPoint aGlobalScaleFixPos3D(aGlobalScaleFixPos2D.getX(), aGlobalScaleFixPos2D.getY(), aObjectCenter.getZ());
679                 basegfx::B3DHomMatrix aInverseViewToEye(aViewInfo3D.getDeviceToView() * aViewInfo3D.getProjection());
680 
681                 aInverseViewToEye.invert();
682                 basegfx::B3DPoint aScStart(aInverseViewToEye * aGlobalScaleStart3D);
683                 basegfx::B3DPoint aScNext(aInverseViewToEye * aGlobalScaleNext3D);
684                 basegfx::B3DPoint aScFixPos(aInverseViewToEye * aGlobalScaleFixPos3D);
685 
686                 // constraints?
687                 switch(meWhatDragHdl)
688                 {
689                     case HDL_LEFT:
690                     case HDL_RIGHT:
691                         // constrain to auf X -> Y equal
692                         aScNext.setY(aScFixPos.getY());
693                         break;
694                     case HDL_UPPER:
695                     case HDL_LOWER:
696                         // constrain to auf Y -> X equal
697                         aScNext.setX(aScFixPos.getX());
698                         break;
699                     default:
700                         break;
701                 }
702 
703                 // get scale vector in eye coordinates
704                 basegfx::B3DPoint aScaleVec(aScStart - aScFixPos);
705                 aScaleVec.setZ(1.0);
706 
707                 if(aScaleVec.getX() != 0.0)
708                 {
709                     aScaleVec.setX((aScNext.getX() - aScFixPos.getX()) / aScaleVec.getX());
710                 }
711                 else
712                 {
713                     aScaleVec.setX(1.0);
714                 }
715 
716                 if(aScaleVec.getY() != 0.0)
717                 {
718                     aScaleVec.setY((aScNext.getY() - aScFixPos.getY()) / aScaleVec.getY());
719                 }
720                 else
721                 {
722                     aScaleVec.setY(1.0);
723                 }
724 
725                 // SHIFT-key used?
726                 if(getSdrDragView().IsOrtho())
727                 {
728                     if(fabs(aScaleVec.getX()) > fabs(aScaleVec.getY()))
729                     {
730                         // X is biggest
731                         aScaleVec.setY(aScaleVec.getX());
732                     }
733                     else
734                     {
735                         // Y is biggest
736                         aScaleVec.setX(aScaleVec.getY());
737                     }
738                 }
739 
740                 // build transformation
741                 basegfx::B3DHomMatrix aInverseOrientation(aViewInfo3D.getOrientation());
742                 aInverseOrientation.invert();
743 
744                 basegfx::B3DHomMatrix aNewTrans = rCandidate.maInitTransform;
745                 aNewTrans *= rCandidate.maDisplayTransform;
746                 aNewTrans *= aViewInfo3D.getOrientation();
747                 aNewTrans.translate(-aScFixPos.getX(), -aScFixPos.getY(), -aScFixPos.getZ());
748                 aNewTrans.scale(aScaleVec.getX(), aScaleVec.getY(), aScaleVec.getZ());
749                 aNewTrans.translate(aScFixPos.getX(), aScFixPos.getY(), aScFixPos.getZ());
750                 aNewTrans *= aInverseOrientation;
751                 aNewTrans *= rCandidate.maInvDisplayTransform;
752 
753                 // ...und anwenden
754                 rCandidate.maTransform = aNewTrans;
755 
756                 if(mbMoveFull)
757                 {
758                     E3DModifySceneSnapRectUpdater aUpdater(rCandidate.mp3DObj);
759                     rCandidate.mp3DObj->SetTransform(rCandidate.maTransform);
760                 }
761                 else
762                 {
763                     Hide();
764                     rCandidate.maWireframePoly.clear();
765                     rCandidate.maWireframePoly = rCandidate.mp3DObj->CreateWireframe();
766                     rCandidate.maWireframePoly.transform(rCandidate.maTransform);
767                     Show();
768                 }
769             }
770         }
771         maLastPos = rPnt;
772         DragStat().NextMove(rPnt);
773     }
774 }
775 
776 /*************************************************************************
777 |*
778 \************************************************************************/
779 
780 Pointer E3dDragMove::GetSdrDragPointer() const
781 {
782     return Pointer(POINTER_MOVE);
783 }
784 
785 // eof
786