1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20
21 #include <dragmt3d.hxx>
22 #include <o3tl/numeric.hxx>
23 #include <svx/svdpagv.hxx>
24 #include <svx/dialmgr.hxx>
25 #include <svx/svddrgmt.hxx>
26 #include <svx/svdtrans.hxx>
27 #include <svx/obj3d.hxx>
28 #include <svx/e3dundo.hxx>
29 #include <svx/strings.hrc>
30 #include <svx/sdr/overlay/overlaypolypolygon.hxx>
31 #include <svx/sdr/overlay/overlaymanager.hxx>
32 #include <basegfx/polygon/b2dpolypolygontools.hxx>
33 #include <svx/sdr/contact/viewcontactofe3dscene.hxx>
34 #include <drawinglayer/geometry/viewinformation3d.hxx>
35 #include <svx/e3dsceneupdater.hxx>
36 #include <vcl/ptrstyle.hxx>
37 #include <comphelper/lok.hxx>
38
39
E3dDragMethod(SdrDragView & _rView,const SdrMarkList & rMark,E3dDragConstraint eConstr,bool bFull)40 E3dDragMethod::E3dDragMethod (
41 SdrDragView &_rView,
42 const SdrMarkList& rMark,
43 E3dDragConstraint eConstr,
44 bool bFull)
45 : SdrDragMethod(_rView),
46 meConstraint(eConstr),
47 mbMoveFull(bFull),
48 mbMovedAtAll(false)
49 {
50 // Create a unit for all the 3D objects present in the selection
51 const size_t nCnt(rMark.GetMarkCount());
52
53 if(mbMoveFull)
54 {
55 // for non-visible 3D objects fallback to wireframe interaction
56 for(size_t nObjs = 0; nObjs < nCnt; ++nObjs)
57 {
58 E3dObject* pE3dObj = dynamic_cast< E3dObject* >(rMark.GetMark(nObjs)->GetMarkedSdrObj());
59
60 if(pE3dObj)
61 {
62 if(!pE3dObj->HasFillStyle() && !pE3dObj->HasLineStyle())
63 {
64 mbMoveFull = false;
65 break;
66 }
67 }
68 }
69 }
70
71 for(size_t nObjs = 0; nObjs < nCnt; ++nObjs)
72 {
73 E3dObject* pE3dObj = dynamic_cast< E3dObject* >(rMark.GetMark(nObjs)->GetMarkedSdrObj());
74
75 if(pE3dObj)
76 {
77 // fill new interaction unit
78 E3dDragMethodUnit aNewUnit(*pE3dObj);
79
80 // get transformations
81 aNewUnit.maInitTransform = aNewUnit.maTransform = pE3dObj->GetTransform();
82
83 if(nullptr != pE3dObj->getParentE3dSceneFromE3dObject())
84 {
85 // get transform between object and world, normally scene transform
86 aNewUnit.maInvDisplayTransform = aNewUnit.maDisplayTransform = pE3dObj->getParentE3dSceneFromE3dObject()->GetFullTransform();
87 aNewUnit.maInvDisplayTransform.invert();
88 }
89
90 if(!mbMoveFull)
91 {
92 // create wireframe visualisation for parent coordinate system
93 aNewUnit.maWireframePoly.clear();
94 aNewUnit.maWireframePoly = pE3dObj->CreateWireframe();
95 aNewUnit.maWireframePoly.transform(aNewUnit.maTransform);
96 }
97
98 // Determine FullBound
99 maFullBound.Union(pE3dObj->GetSnapRect());
100
101 // Insert Unit
102 maGrp.push_back(aNewUnit);
103 }
104 }
105 }
106
GetSdrDragComment() const107 OUString E3dDragMethod::GetSdrDragComment() const
108 {
109 return OUString();
110 }
111
112 // Create the wireframe model for all actions
113
BeginSdrDrag()114 bool E3dDragMethod::BeginSdrDrag()
115 {
116 if(E3dDragConstraint::Z == meConstraint)
117 {
118 const sal_uInt32 nCnt(maGrp.size());
119 DragStat().SetRef1( maFullBound.Center() );
120
121 for(sal_uInt32 nOb(0); nOb < nCnt; nOb++)
122 {
123 E3dDragMethodUnit& rCandidate = maGrp[nOb];
124 rCandidate.mnStartAngle = GetAngle(DragStat().GetStart() - DragStat().GetRef1());
125 rCandidate.mnLastAngle = 0_deg100;
126 }
127 }
128 else
129 {
130 maLastPos = DragStat().GetStart();
131 }
132
133 if(!mbMoveFull)
134 {
135 Show();
136 }
137
138 return true;
139 }
140
EndSdrDrag(bool)141 bool E3dDragMethod::EndSdrDrag(bool /*bCopy*/)
142 {
143 const sal_uInt32 nCnt(maGrp.size());
144
145 if(!mbMoveFull)
146 {
147 // Hide wireframe
148 Hide();
149 }
150
151 // Apply all transformations and create undo's
152 if(mbMovedAtAll)
153 {
154 const bool bUndo = getSdrDragView().IsUndoEnabled();
155 if( bUndo )
156 getSdrDragView().BegUndo(SvxResId(RID_SVX_3D_UNDO_ROTATE));
157 sal_uInt32 nOb(0);
158
159 for(nOb=0;nOb<nCnt;nOb++)
160 {
161 E3dDragMethodUnit& rCandidate = maGrp[nOb];
162 E3DModifySceneSnapRectUpdater aUpdater(&rCandidate.mr3DObj);
163 rCandidate.mr3DObj.SetTransform(rCandidate.maTransform);
164 if( bUndo )
165 {
166 getSdrDragView().AddUndo(
167 std::make_unique<E3dRotateUndoAction>(
168 rCandidate.mr3DObj,
169 rCandidate.maInitTransform,
170 rCandidate.maTransform));
171 }
172 }
173 if( bUndo )
174 getSdrDragView().EndUndo();
175 }
176
177 return true;
178 }
179
CancelSdrDrag()180 void E3dDragMethod::CancelSdrDrag()
181 {
182 if(mbMoveFull)
183 {
184 if(mbMovedAtAll)
185 {
186 const sal_uInt32 nCnt(maGrp.size());
187
188 for(sal_uInt32 nOb(0); nOb < nCnt; nOb++)
189 {
190 // Restore transformation
191 E3dDragMethodUnit& rCandidate = maGrp[nOb];
192 E3DModifySceneSnapRectUpdater aUpdater(&rCandidate.mr3DObj);
193 rCandidate.mr3DObj.SetTransform(rCandidate.maInitTransform);
194 }
195 }
196 }
197 else
198 {
199 // Hide WireFrame
200 Hide();
201 }
202 }
203
204 // Common MoveSdrDrag()
205
MoveSdrDrag(const Point &)206 void E3dDragMethod::MoveSdrDrag(const Point& /*rPnt*/)
207 {
208 mbMovedAtAll = true;
209 }
210
211 // Draw the wire frame model
212
213 // for migration from XOR to overlay
CreateOverlayGeometry(sdr::overlay::OverlayManager & rOverlayManager,const sdr::contact::ObjectContact & rObjectContact)214 void E3dDragMethod::CreateOverlayGeometry(
215 sdr::overlay::OverlayManager& rOverlayManager,
216 const sdr::contact::ObjectContact& rObjectContact)
217 {
218 // We do client-side object manipulation with the Kit API
219 if (comphelper::LibreOfficeKit::isActive())
220 return;
221
222 const sal_uInt32 nCnt(maGrp.size());
223 basegfx::B2DPolyPolygon aResult;
224
225 for(sal_uInt32 nOb(0); nOb < nCnt; nOb++)
226 {
227 E3dDragMethodUnit& rCandidate = maGrp[nOb];
228 SdrPageView* pPV = getSdrDragView().GetSdrPageView();
229
230 if(pPV && pPV->HasMarkedObjPageView())
231 {
232 const basegfx::B3DPolyPolygon aCandidate(rCandidate.maWireframePoly);
233 const sal_uInt32 nPlyCnt(aCandidate.count());
234
235 if(nPlyCnt)
236 {
237 const E3dScene* pScene(rCandidate.mr3DObj.getRootE3dSceneFromE3dObject());
238
239 if(nullptr != pScene)
240 {
241 const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(pScene->GetViewContact());
242 const drawinglayer::geometry::ViewInformation3D& aViewInfo3D(rVCScene.getViewInformation3D());
243 const basegfx::B3DHomMatrix aWorldToView(aViewInfo3D.getDeviceToView() * aViewInfo3D.getProjection() * aViewInfo3D.getOrientation());
244 const basegfx::B3DHomMatrix aTransform(aWorldToView * rCandidate.maDisplayTransform);
245
246 // transform to relative scene coordinates
247 basegfx::B2DPolyPolygon aPolyPolygon(basegfx::utils::createB2DPolyPolygonFromB3DPolyPolygon(aCandidate, aTransform));
248
249 // transform to 2D view coordinates
250 aPolyPolygon.transform(rVCScene.getObjectTransformation());
251
252 aResult.append(aPolyPolygon);
253 }
254 }
255 }
256 }
257
258 if(aResult.count())
259 {
260 std::unique_ptr<sdr::overlay::OverlayPolyPolygonStripedAndFilled> pNew(
261 new sdr::overlay::OverlayPolyPolygonStripedAndFilled(
262 aResult));
263
264 insertNewlyCreatedOverlayObjectForSdrDragMethod(
265 std::move(pNew),
266 rObjectContact,
267 rOverlayManager);
268 }
269 }
270
271
E3dDragRotate(SdrDragView & _rView,const SdrMarkList & rMark,E3dDragConstraint eConstr,bool bFull)272 E3dDragRotate::E3dDragRotate(SdrDragView &_rView,
273 const SdrMarkList& rMark,
274 E3dDragConstraint eConstr,
275 bool bFull)
276 : E3dDragMethod(_rView, rMark, eConstr, bFull)
277 {
278 // Get center of all selected objects in eye coordinates
279 const sal_uInt32 nCnt(maGrp.size());
280
281 if(!nCnt)
282 return;
283
284 const E3dScene* pScene(maGrp[0].mr3DObj.getRootE3dSceneFromE3dObject());
285
286 if(nullptr == pScene)
287 return;
288
289 const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(pScene->GetViewContact());
290 const drawinglayer::geometry::ViewInformation3D& aViewInfo3D(rVCScene.getViewInformation3D());
291
292 for(sal_uInt32 nOb(0); nOb < nCnt; nOb++)
293 {
294 E3dDragMethodUnit& rCandidate = maGrp[nOb];
295 basegfx::B3DPoint aObjCenter = rCandidate.mr3DObj.GetBoundVolume().getCenter();
296 const basegfx::B3DHomMatrix aTransform(aViewInfo3D.getOrientation() * rCandidate.maDisplayTransform * rCandidate.maInitTransform);
297
298 aObjCenter = aTransform * aObjCenter;
299 maGlobalCenter += aObjCenter;
300 }
301
302 // Divide by the number
303 if(nCnt > 1)
304 {
305 maGlobalCenter /= static_cast<double>(nCnt);
306 }
307
308 // get rotate center and transform to 3D eye coordinates
309 basegfx::B2DPoint aRotCenter2D(Ref1().X(), Ref1().Y());
310
311 // from world to relative scene using inverse getObjectTransformation()
312 basegfx::B2DHomMatrix aInverseObjectTransform(rVCScene.getObjectTransformation());
313 aInverseObjectTransform.invert();
314 aRotCenter2D = aInverseObjectTransform * aRotCenter2D;
315
316 // from 3D view to 3D eye
317 basegfx::B3DPoint aRotCenter3D(aRotCenter2D.getX(), aRotCenter2D.getY(), 0.0);
318 basegfx::B3DHomMatrix aInverseViewToEye(aViewInfo3D.getDeviceToView() * aViewInfo3D.getProjection());
319 aInverseViewToEye.invert();
320 aRotCenter3D = aInverseViewToEye * aRotCenter3D;
321
322 // Use X,Y of the RotCenter and depth of the common object centre
323 // as rotation point in the space
324 maGlobalCenter.setX(aRotCenter3D.getX());
325 maGlobalCenter.setY(aRotCenter3D.getY());
326 }
327
328
329 //The object is moved, determine the angle
330
MoveSdrDrag(const Point & rPnt)331 void E3dDragRotate::MoveSdrDrag(const Point& rPnt)
332 {
333 // call parent
334 E3dDragMethod::MoveSdrDrag(rPnt);
335
336 if(!DragStat().CheckMinMoved(rPnt))
337 return;
338
339 // Get modifier
340 sal_uInt16 nModifier = 0;
341 if(auto pDragView = dynamic_cast<const E3dView*>(&getSdrDragView()))
342 {
343 const MouseEvent& rLastMouse = pDragView->GetMouseEvent();
344 nModifier = rLastMouse.GetModifier();
345 }
346
347 // Rotate all objects
348 const sal_uInt32 nCnt(maGrp.size());
349
350 for(sal_uInt32 nOb(0); nOb < nCnt; nOb++)
351 {
352 // Determine rotation angle
353 double fWAngle, fHAngle;
354 E3dDragMethodUnit& rCandidate = maGrp[nOb];
355
356 if(E3dDragConstraint::Z == meConstraint)
357 {
358 Degree100 lastAngle = NormAngle36000(GetAngle(rPnt - DragStat().GetRef1()) -
359 rCandidate.mnStartAngle) - rCandidate.mnLastAngle;
360 rCandidate.mnLastAngle = lastAngle + rCandidate.mnLastAngle;
361 fWAngle = toDegrees(lastAngle);
362 fHAngle = 0.0;
363 }
364 else
365 {
366 if ((maFullBound.GetWidth() == 0) || (maFullBound.GetHeight() == 0))
367 throw o3tl::divide_by_zero();
368 fWAngle = 90.0 * static_cast<double>(rPnt.X() - maLastPos.X())
369 / static_cast<double>(maFullBound.GetWidth());
370 fHAngle = 90.0 * static_cast<double>(rPnt.Y() - maLastPos.Y())
371 / static_cast<double>(maFullBound.GetHeight());
372 }
373 tools::Long nSnap = 0;
374
375 if(!getSdrDragView().IsRotateAllowed())
376 nSnap = 90;
377
378 if(nSnap != 0)
379 {
380 fWAngle = static_cast<double>((static_cast<tools::Long>(fWAngle) + nSnap/2) / nSnap * nSnap);
381 fHAngle = static_cast<double>((static_cast<tools::Long>(fHAngle) + nSnap/2) / nSnap * nSnap);
382 }
383
384 // to radians
385 fWAngle = basegfx::deg2rad(fWAngle);
386 fHAngle = basegfx::deg2rad(fHAngle);
387
388 // Determine transformation
389 basegfx::B3DHomMatrix aRotMat;
390 if(E3dDragConstraint::Y & meConstraint)
391 {
392 if(nModifier & KEY_MOD2)
393 aRotMat.rotate(0.0, 0.0, fWAngle);
394 else
395 aRotMat.rotate(0.0, fWAngle, 0.0);
396 }
397 else if(E3dDragConstraint::Z & meConstraint)
398 {
399 if(nModifier & KEY_MOD2)
400 aRotMat.rotate(0.0, fWAngle, 0.0);
401 else
402 aRotMat.rotate(0.0, 0.0, fWAngle);
403 }
404 if(E3dDragConstraint::X & meConstraint)
405 {
406 aRotMat.rotate(fHAngle, 0.0, 0.0);
407 }
408
409 const E3dScene* pScene(rCandidate.mr3DObj.getRootE3dSceneFromE3dObject());
410
411 if(nullptr != pScene)
412 {
413 // Transformation in eye coordinates, there rotate then and back
414 const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(pScene->GetViewContact());
415 const drawinglayer::geometry::ViewInformation3D& aViewInfo3D(rVCScene.getViewInformation3D());
416 basegfx::B3DHomMatrix aInverseOrientation(aViewInfo3D.getOrientation());
417 aInverseOrientation.invert();
418
419 basegfx::B3DHomMatrix aTransMat(rCandidate.maDisplayTransform);
420 aTransMat *= aViewInfo3D.getOrientation();
421 aTransMat.translate(-maGlobalCenter.getX(), -maGlobalCenter.getY(), -maGlobalCenter.getZ());
422 aTransMat *= aRotMat;
423 aTransMat.translate(maGlobalCenter.getX(), maGlobalCenter.getY(), maGlobalCenter.getZ());
424 aTransMat *= aInverseOrientation;
425 aTransMat *= rCandidate.maInvDisplayTransform;
426
427 // ...and apply
428 rCandidate.maTransform *= aTransMat;
429
430 if(mbMoveFull)
431 {
432 E3DModifySceneSnapRectUpdater aUpdater(&rCandidate.mr3DObj);
433 rCandidate.mr3DObj.SetTransform(rCandidate.maTransform);
434 }
435 else
436 {
437 Hide();
438 rCandidate.maWireframePoly.transform(aTransMat);
439 Show();
440 }
441 }
442 }
443 maLastPos = rPnt;
444 DragStat().NextMove(rPnt);
445 }
446
GetSdrDragPointer() const447 PointerStyle E3dDragRotate::GetSdrDragPointer() const
448 {
449 return PointerStyle::Rotate;
450 }
451
452 // E3dDragMove. This drag method is only required for translations inside
453 // 3D scenes. If a 3D-scene itself moved, then this drag method will drag
454 // not be used.
455
456
E3dDragMove(SdrDragView & _rView,const SdrMarkList & rMark,SdrHdlKind eDrgHdl,E3dDragConstraint eConstr,bool bFull)457 E3dDragMove::E3dDragMove(SdrDragView &_rView,
458 const SdrMarkList& rMark,
459 SdrHdlKind eDrgHdl,
460 E3dDragConstraint eConstr,
461 bool bFull)
462 : E3dDragMethod(_rView, rMark, eConstr, bFull),
463 meWhatDragHdl(eDrgHdl)
464 {
465 switch(meWhatDragHdl)
466 {
467 case SdrHdlKind::Left:
468 maScaleFixPos = maFullBound.RightCenter();
469 break;
470 case SdrHdlKind::Right:
471 maScaleFixPos = maFullBound.LeftCenter();
472 break;
473 case SdrHdlKind::Upper:
474 maScaleFixPos = maFullBound.BottomCenter();
475 break;
476 case SdrHdlKind::Lower:
477 maScaleFixPos = maFullBound.TopCenter();
478 break;
479 case SdrHdlKind::UpperLeft:
480 maScaleFixPos = maFullBound.BottomRight();
481 break;
482 case SdrHdlKind::UpperRight:
483 maScaleFixPos = maFullBound.BottomLeft();
484 break;
485 case SdrHdlKind::LowerLeft:
486 maScaleFixPos = maFullBound.TopRight();
487 break;
488 case SdrHdlKind::LowerRight:
489 maScaleFixPos = maFullBound.TopLeft();
490 break;
491 default:
492 // Moving the object, SdrHdlKind::Move
493 break;
494 }
495
496 // Override when IsResizeAtCenter()
497 if(getSdrDragView().IsResizeAtCenter())
498 {
499 meWhatDragHdl = SdrHdlKind::User;
500 maScaleFixPos = maFullBound.Center();
501 }
502 }
503
504 // The object is moved, determine the translations
505
MoveSdrDrag(const Point & rPnt)506 void E3dDragMove::MoveSdrDrag(const Point& rPnt)
507 {
508 // call parent
509 E3dDragMethod::MoveSdrDrag(rPnt);
510
511 if(!DragStat().CheckMinMoved(rPnt))
512 return;
513
514 if(SdrHdlKind::Move == meWhatDragHdl)
515 {
516 // Translation
517 // Determine the motion vector
518 const sal_uInt32 nCnt(maGrp.size());
519
520 // Get modifier
521 sal_uInt16 nModifier(0);
522
523 if(auto pDragView = dynamic_cast<const E3dView*>(&getSdrDragView()))
524 {
525 const MouseEvent& rLastMouse = pDragView->GetMouseEvent();
526 nModifier = rLastMouse.GetModifier();
527 }
528
529 for(sal_uInt32 nOb(0); nOb < nCnt; nOb++)
530 {
531 E3dDragMethodUnit& rCandidate = maGrp[nOb];
532 const E3dScene* pScene(rCandidate.mr3DObj.getRootE3dSceneFromE3dObject());
533
534 if(nullptr != pScene)
535 {
536 const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(pScene->GetViewContact());
537 const drawinglayer::geometry::ViewInformation3D& aViewInfo3D(rVCScene.getViewInformation3D());
538
539 // move coor from 2d world to 3d Eye
540 basegfx::B2DPoint aGlobalMoveHead2D(static_cast<double>(rPnt.X() - maLastPos.X()), static_cast<double>(rPnt.Y() - maLastPos.Y()));
541 basegfx::B2DPoint aGlobalMoveTail2D(0.0, 0.0);
542 basegfx::B2DHomMatrix aInverseSceneTransform(rVCScene.getObjectTransformation());
543
544 aInverseSceneTransform.invert();
545 aGlobalMoveHead2D = aInverseSceneTransform * aGlobalMoveHead2D;
546 aGlobalMoveTail2D = aInverseSceneTransform * aGlobalMoveTail2D;
547
548 basegfx::B3DPoint aMoveHead3D(aGlobalMoveHead2D.getX(), aGlobalMoveHead2D.getY(), 0.5);
549 basegfx::B3DPoint aMoveTail3D(aGlobalMoveTail2D.getX(), aGlobalMoveTail2D.getY(), 0.5);
550 basegfx::B3DHomMatrix aInverseViewToEye(aViewInfo3D.getDeviceToView() * aViewInfo3D.getProjection());
551 aInverseViewToEye.invert();
552
553 aMoveHead3D = aInverseViewToEye * aMoveHead3D;
554 aMoveTail3D = aInverseViewToEye * aMoveTail3D;
555
556 // eventually switch movement from XY to XZ plane
557 if(nModifier & KEY_MOD2)
558 {
559 double fZwi = aMoveHead3D.getY();
560 aMoveHead3D.setY(aMoveHead3D.getZ());
561 aMoveHead3D.setZ(fZwi);
562
563 fZwi = aMoveTail3D.getY();
564 aMoveTail3D.setY(aMoveTail3D.getZ());
565 aMoveTail3D.setZ(fZwi);
566 }
567
568 // Motion vector from eye coordinates to parent coordinates
569 basegfx::B3DHomMatrix aInverseOrientation(aViewInfo3D.getOrientation());
570 aInverseOrientation.invert();
571 basegfx::B3DHomMatrix aCompleteTrans(rCandidate.maInvDisplayTransform * aInverseOrientation);
572
573 aMoveHead3D = aCompleteTrans * aMoveHead3D;
574 aMoveTail3D = aCompleteTrans* aMoveTail3D;
575
576 // build transformation
577 basegfx::B3DHomMatrix aTransMat;
578 basegfx::B3DPoint aTranslate(aMoveHead3D - aMoveTail3D);
579 aTransMat.translate(aTranslate.getX(), aTranslate.getY(), aTranslate.getZ());
580
581 // ...and apply
582 rCandidate.maTransform *= aTransMat;
583
584 if(mbMoveFull)
585 {
586 E3DModifySceneSnapRectUpdater aUpdater(&rCandidate.mr3DObj);
587 rCandidate.mr3DObj.SetTransform(rCandidate.maTransform);
588 }
589 else
590 {
591 Hide();
592 rCandidate.maWireframePoly.transform(aTransMat);
593 Show();
594 }
595 }
596 }
597 }
598 else
599 {
600 // Scaling
601 // Determine scaling vector
602 Point aStartPos = DragStat().GetStart();
603 const sal_uInt32 nCnt(maGrp.size());
604
605 for(sal_uInt32 nOb(0); nOb < nCnt; nOb++)
606 {
607 E3dDragMethodUnit& rCandidate = maGrp[nOb];
608 const basegfx::B3DPoint aObjectCenter(rCandidate.mr3DObj.GetBoundVolume().getCenter());
609 const E3dScene* pScene(rCandidate.mr3DObj.getRootE3dSceneFromE3dObject());
610
611 if(nullptr != pScene)
612 {
613 // transform from 2D world view to 3D eye
614 const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(pScene->GetViewContact());
615 const drawinglayer::geometry::ViewInformation3D& aViewInfo3D(rVCScene.getViewInformation3D());
616
617 basegfx::B2DPoint aGlobalScaleStart2D(static_cast<double>(aStartPos.X()), static_cast<double>(aStartPos.Y()));
618 basegfx::B2DPoint aGlobalScaleNext2D(static_cast<double>(rPnt.X()), static_cast<double>(rPnt.Y()));
619 basegfx::B2DPoint aGlobalScaleFixPos2D(static_cast<double>(maScaleFixPos.X()), static_cast<double>(maScaleFixPos.Y()));
620 basegfx::B2DHomMatrix aInverseSceneTransform(rVCScene.getObjectTransformation());
621
622 aInverseSceneTransform.invert();
623 aGlobalScaleStart2D = aInverseSceneTransform * aGlobalScaleStart2D;
624 aGlobalScaleNext2D = aInverseSceneTransform * aGlobalScaleNext2D;
625 aGlobalScaleFixPos2D = aInverseSceneTransform * aGlobalScaleFixPos2D;
626
627 basegfx::B3DPoint aGlobalScaleStart3D(aGlobalScaleStart2D.getX(), aGlobalScaleStart2D.getY(), aObjectCenter.getZ());
628 basegfx::B3DPoint aGlobalScaleNext3D(aGlobalScaleNext2D.getX(), aGlobalScaleNext2D.getY(), aObjectCenter.getZ());
629 basegfx::B3DPoint aGlobalScaleFixPos3D(aGlobalScaleFixPos2D.getX(), aGlobalScaleFixPos2D.getY(), aObjectCenter.getZ());
630 basegfx::B3DHomMatrix aInverseViewToEye(aViewInfo3D.getDeviceToView() * aViewInfo3D.getProjection());
631
632 aInverseViewToEye.invert();
633 basegfx::B3DPoint aScStart(aInverseViewToEye * aGlobalScaleStart3D);
634 basegfx::B3DPoint aScNext(aInverseViewToEye * aGlobalScaleNext3D);
635 basegfx::B3DPoint aScFixPos(aInverseViewToEye * aGlobalScaleFixPos3D);
636
637 // constraints?
638 switch(meWhatDragHdl)
639 {
640 case SdrHdlKind::Left:
641 case SdrHdlKind::Right:
642 // to constrain on X -> Y equal
643 aScNext.setY(aScFixPos.getY());
644 break;
645 case SdrHdlKind::Upper:
646 case SdrHdlKind::Lower:
647 // constrain to Y -> X equal
648 aScNext.setX(aScFixPos.getX());
649 break;
650 default:
651 break;
652 }
653
654 // get scale vector in eye coordinates
655 basegfx::B3DPoint aScaleVec(aScStart - aScFixPos);
656 aScaleVec.setZ(1.0);
657
658 if(aScaleVec.getX() != 0.0)
659 {
660 aScaleVec.setX((aScNext.getX() - aScFixPos.getX()) / aScaleVec.getX());
661 }
662 else
663 {
664 aScaleVec.setX(1.0);
665 }
666
667 if(aScaleVec.getY() != 0.0)
668 {
669 aScaleVec.setY((aScNext.getY() - aScFixPos.getY()) / aScaleVec.getY());
670 }
671 else
672 {
673 aScaleVec.setY(1.0);
674 }
675
676 // SHIFT-key used?
677 if(getSdrDragView().IsOrtho())
678 {
679 if(fabs(aScaleVec.getX()) > fabs(aScaleVec.getY()))
680 {
681 // X is biggest
682 aScaleVec.setY(aScaleVec.getX());
683 }
684 else
685 {
686 // Y is biggest
687 aScaleVec.setX(aScaleVec.getY());
688 }
689 }
690
691 // build transformation
692 basegfx::B3DHomMatrix aInverseOrientation(aViewInfo3D.getOrientation());
693 aInverseOrientation.invert();
694
695 basegfx::B3DHomMatrix aNewTrans = rCandidate.maInitTransform;
696 aNewTrans *= rCandidate.maDisplayTransform;
697 aNewTrans *= aViewInfo3D.getOrientation();
698 aNewTrans.translate(-aScFixPos.getX(), -aScFixPos.getY(), -aScFixPos.getZ());
699 aNewTrans.scale(aScaleVec.getX(), aScaleVec.getY(), aScaleVec.getZ());
700 aNewTrans.translate(aScFixPos.getX(), aScFixPos.getY(), aScFixPos.getZ());
701 aNewTrans *= aInverseOrientation;
702 aNewTrans *= rCandidate.maInvDisplayTransform;
703
704 // ...and apply
705 rCandidate.maTransform = aNewTrans;
706
707 if(mbMoveFull)
708 {
709 E3DModifySceneSnapRectUpdater aUpdater(&rCandidate.mr3DObj);
710 rCandidate.mr3DObj.SetTransform(rCandidate.maTransform);
711 }
712 else
713 {
714 Hide();
715 rCandidate.maWireframePoly.clear();
716 rCandidate.maWireframePoly = rCandidate.mr3DObj.CreateWireframe();
717 rCandidate.maWireframePoly.transform(rCandidate.maTransform);
718 Show();
719 }
720 }
721 }
722 }
723 maLastPos = rPnt;
724 DragStat().NextMove(rPnt);
725 }
726
GetSdrDragPointer() const727 PointerStyle E3dDragMove::GetSdrDragPointer() const
728 {
729 return PointerStyle::Move;
730 }
731
732 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
733