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Diffstat (limited to 'svx/source/engine3d/dragmt3d.cxx')
| -rw-r--r-- | svx/source/engine3d/dragmt3d.cxx | 732 |
1 files changed, 732 insertions, 0 deletions
diff --git a/svx/source/engine3d/dragmt3d.cxx b/svx/source/engine3d/dragmt3d.cxx new file mode 100644 index 000000000..c27d95598 --- /dev/null +++ b/svx/source/engine3d/dragmt3d.cxx @@ -0,0 +1,732 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + + +#include <dragmt3d.hxx> +#include <o3tl/numeric.hxx> +#include <svx/svdpagv.hxx> +#include <svx/dialmgr.hxx> +#include <svx/svddrgmt.hxx> +#include <svx/svdtrans.hxx> +#include <svx/obj3d.hxx> +#include <svx/e3dundo.hxx> +#include <svx/strings.hrc> +#include <svx/sdr/overlay/overlaypolypolygon.hxx> +#include <svx/sdr/overlay/overlaymanager.hxx> +#include <basegfx/polygon/b2dpolypolygontools.hxx> +#include <svx/sdr/contact/viewcontactofe3dscene.hxx> +#include <drawinglayer/geometry/viewinformation3d.hxx> +#include <svx/e3dsceneupdater.hxx> +#include <vcl/ptrstyle.hxx> +#include <comphelper/lok.hxx> + + +E3dDragMethod::E3dDragMethod ( + SdrDragView &_rView, + const SdrMarkList& rMark, + E3dDragConstraint eConstr, + bool bFull) +: SdrDragMethod(_rView), + meConstraint(eConstr), + mbMoveFull(bFull), + mbMovedAtAll(false) +{ + // Create a unit for all the 3D objects present in the selection + const size_t nCnt(rMark.GetMarkCount()); + + if(mbMoveFull) + { + // for non-visible 3D objects fallback to wireframe interaction + for(size_t nObjs = 0; nObjs < nCnt; ++nObjs) + { + E3dObject* pE3dObj = dynamic_cast< E3dObject* >(rMark.GetMark(nObjs)->GetMarkedSdrObj()); + + if(pE3dObj) + { + if(!pE3dObj->HasFillStyle() && !pE3dObj->HasLineStyle()) + { + mbMoveFull = false; + break; + } + } + } + } + + for(size_t nObjs = 0; nObjs < nCnt; ++nObjs) + { + E3dObject* pE3dObj = dynamic_cast< E3dObject* >(rMark.GetMark(nObjs)->GetMarkedSdrObj()); + + if(pE3dObj) + { + // fill new interaction unit + E3dDragMethodUnit aNewUnit(*pE3dObj); + + // get transformations + aNewUnit.maInitTransform = aNewUnit.maTransform = pE3dObj->GetTransform(); + + if(nullptr != pE3dObj->getParentE3dSceneFromE3dObject()) + { + // get transform between object and world, normally scene transform + aNewUnit.maInvDisplayTransform = aNewUnit.maDisplayTransform = pE3dObj->getParentE3dSceneFromE3dObject()->GetFullTransform(); + aNewUnit.maInvDisplayTransform.invert(); + } + + if(!mbMoveFull) + { + // create wireframe visualisation for parent coordinate system + aNewUnit.maWireframePoly.clear(); + aNewUnit.maWireframePoly = pE3dObj->CreateWireframe(); + aNewUnit.maWireframePoly.transform(aNewUnit.maTransform); + } + + // Determine FullBound + maFullBound.Union(pE3dObj->GetSnapRect()); + + // Insert Unit + maGrp.push_back(aNewUnit); + } + } +} + +OUString E3dDragMethod::GetSdrDragComment() const +{ + return OUString(); +} + +// Create the wireframe model for all actions + +bool E3dDragMethod::BeginSdrDrag() +{ + if(E3dDragConstraint::Z == meConstraint) + { + const sal_uInt32 nCnt(maGrp.size()); + DragStat().SetRef1( maFullBound.Center() ); + + for(sal_uInt32 nOb(0); nOb < nCnt; nOb++) + { + E3dDragMethodUnit& rCandidate = maGrp[nOb]; + rCandidate.mnStartAngle = GetAngle(DragStat().GetStart() - DragStat().GetRef1()); + rCandidate.mnLastAngle = 0_deg100; + } + } + else + { + maLastPos = DragStat().GetStart(); + } + + if(!mbMoveFull) + { + Show(); + } + + return true; +} + +bool E3dDragMethod::EndSdrDrag(bool /*bCopy*/) +{ + const sal_uInt32 nCnt(maGrp.size()); + + if(!mbMoveFull) + { + // Hide wireframe + Hide(); + } + + // Apply all transformations and create undo's + if(mbMovedAtAll) + { + const bool bUndo = getSdrDragView().IsUndoEnabled(); + if( bUndo ) + getSdrDragView().BegUndo(SvxResId(RID_SVX_3D_UNDO_ROTATE)); + sal_uInt32 nOb(0); + + for(nOb=0;nOb<nCnt;nOb++) + { + E3dDragMethodUnit& rCandidate = maGrp[nOb]; + E3DModifySceneSnapRectUpdater aUpdater(&rCandidate.mr3DObj); + rCandidate.mr3DObj.SetTransform(rCandidate.maTransform); + if( bUndo ) + { + getSdrDragView().AddUndo( + std::make_unique<E3dRotateUndoAction>( + rCandidate.mr3DObj, + rCandidate.maInitTransform, + rCandidate.maTransform)); + } + } + if( bUndo ) + getSdrDragView().EndUndo(); + } + + return true; +} + +void E3dDragMethod::CancelSdrDrag() +{ + if(mbMoveFull) + { + if(mbMovedAtAll) + { + const sal_uInt32 nCnt(maGrp.size()); + + for(sal_uInt32 nOb(0); nOb < nCnt; nOb++) + { + // Restore transformation + E3dDragMethodUnit& rCandidate = maGrp[nOb]; + E3DModifySceneSnapRectUpdater aUpdater(&rCandidate.mr3DObj); + rCandidate.mr3DObj.SetTransform(rCandidate.maInitTransform); + } + } + } + else + { + // Hide WireFrame + Hide(); + } +} + +// Common MoveSdrDrag() + +void E3dDragMethod::MoveSdrDrag(const Point& /*rPnt*/) +{ + mbMovedAtAll = true; +} + +// Draw the wire frame model + +// for migration from XOR to overlay +void E3dDragMethod::CreateOverlayGeometry( + sdr::overlay::OverlayManager& rOverlayManager, + const sdr::contact::ObjectContact& rObjectContact) +{ + // We do client-side object manipulation with the Kit API + if (comphelper::LibreOfficeKit::isActive()) + return; + + const sal_uInt32 nCnt(maGrp.size()); + basegfx::B2DPolyPolygon aResult; + + for(sal_uInt32 nOb(0); nOb < nCnt; nOb++) + { + E3dDragMethodUnit& rCandidate = maGrp[nOb]; + SdrPageView* pPV = getSdrDragView().GetSdrPageView(); + + if(pPV && pPV->HasMarkedObjPageView()) + { + const basegfx::B3DPolyPolygon aCandidate(rCandidate.maWireframePoly); + const sal_uInt32 nPlyCnt(aCandidate.count()); + + if(nPlyCnt) + { + const E3dScene* pScene(rCandidate.mr3DObj.getRootE3dSceneFromE3dObject()); + + if(nullptr != pScene) + { + const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(pScene->GetViewContact()); + const drawinglayer::geometry::ViewInformation3D& aViewInfo3D(rVCScene.getViewInformation3D()); + const basegfx::B3DHomMatrix aWorldToView(aViewInfo3D.getDeviceToView() * aViewInfo3D.getProjection() * aViewInfo3D.getOrientation()); + const basegfx::B3DHomMatrix aTransform(aWorldToView * rCandidate.maDisplayTransform); + + // transform to relative scene coordinates + basegfx::B2DPolyPolygon aPolyPolygon(basegfx::utils::createB2DPolyPolygonFromB3DPolyPolygon(aCandidate, aTransform)); + + // transform to 2D view coordinates + aPolyPolygon.transform(rVCScene.getObjectTransformation()); + + aResult.append(aPolyPolygon); + } + } + } + } + + if(aResult.count()) + { + std::unique_ptr<sdr::overlay::OverlayPolyPolygonStripedAndFilled> pNew( + new sdr::overlay::OverlayPolyPolygonStripedAndFilled( + aResult)); + + insertNewlyCreatedOverlayObjectForSdrDragMethod( + std::move(pNew), + rObjectContact, + rOverlayManager); + } +} + + +E3dDragRotate::E3dDragRotate(SdrDragView &_rView, + const SdrMarkList& rMark, + E3dDragConstraint eConstr, + bool bFull) +: E3dDragMethod(_rView, rMark, eConstr, bFull) +{ + // Get center of all selected objects in eye coordinates + const sal_uInt32 nCnt(maGrp.size()); + + if(!nCnt) + return; + + const E3dScene* pScene(maGrp[0].mr3DObj.getRootE3dSceneFromE3dObject()); + + if(nullptr == pScene) + return; + + const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(pScene->GetViewContact()); + const drawinglayer::geometry::ViewInformation3D& aViewInfo3D(rVCScene.getViewInformation3D()); + + for(sal_uInt32 nOb(0); nOb < nCnt; nOb++) + { + E3dDragMethodUnit& rCandidate = maGrp[nOb]; + basegfx::B3DPoint aObjCenter = rCandidate.mr3DObj.GetBoundVolume().getCenter(); + const basegfx::B3DHomMatrix aTransform(aViewInfo3D.getOrientation() * rCandidate.maDisplayTransform * rCandidate.maInitTransform); + + aObjCenter = aTransform * aObjCenter; + maGlobalCenter += aObjCenter; + } + + // Divide by the number + if(nCnt > 1) + { + maGlobalCenter /= static_cast<double>(nCnt); + } + + // get rotate center and transform to 3D eye coordinates + basegfx::B2DPoint aRotCenter2D(Ref1().X(), Ref1().Y()); + + // from world to relative scene using inverse getObjectTransformation() + basegfx::B2DHomMatrix aInverseObjectTransform(rVCScene.getObjectTransformation()); + aInverseObjectTransform.invert(); + aRotCenter2D = aInverseObjectTransform * aRotCenter2D; + + // from 3D view to 3D eye + basegfx::B3DPoint aRotCenter3D(aRotCenter2D.getX(), aRotCenter2D.getY(), 0.0); + basegfx::B3DHomMatrix aInverseViewToEye(aViewInfo3D.getDeviceToView() * aViewInfo3D.getProjection()); + aInverseViewToEye.invert(); + aRotCenter3D = aInverseViewToEye * aRotCenter3D; + +// Use X,Y of the RotCenter and depth of the common object centre +// as rotation point in the space + maGlobalCenter.setX(aRotCenter3D.getX()); + maGlobalCenter.setY(aRotCenter3D.getY()); +} + + +//The object is moved, determine the angle + +void E3dDragRotate::MoveSdrDrag(const Point& rPnt) +{ + // call parent + E3dDragMethod::MoveSdrDrag(rPnt); + + if(!DragStat().CheckMinMoved(rPnt)) + return; + + // Get modifier + sal_uInt16 nModifier = 0; + if(auto pDragView = dynamic_cast<const E3dView*>(&getSdrDragView())) + { + const MouseEvent& rLastMouse = pDragView->GetMouseEvent(); + nModifier = rLastMouse.GetModifier(); + } + + // Rotate all objects + const sal_uInt32 nCnt(maGrp.size()); + + for(sal_uInt32 nOb(0); nOb < nCnt; nOb++) + { + // Determine rotation angle + double fWAngle, fHAngle; + E3dDragMethodUnit& rCandidate = maGrp[nOb]; + + if(E3dDragConstraint::Z == meConstraint) + { + Degree100 lastAngle = NormAngle36000(GetAngle(rPnt - DragStat().GetRef1()) - + rCandidate.mnStartAngle) - rCandidate.mnLastAngle; + rCandidate.mnLastAngle = lastAngle + rCandidate.mnLastAngle; + fWAngle = toDegrees(lastAngle); + fHAngle = 0.0; + } + else + { + if ((maFullBound.GetWidth() == 0) || (maFullBound.GetHeight() == 0)) + throw o3tl::divide_by_zero(); + fWAngle = 90.0 * static_cast<double>(rPnt.X() - maLastPos.X()) + / static_cast<double>(maFullBound.GetWidth()); + fHAngle = 90.0 * static_cast<double>(rPnt.Y() - maLastPos.Y()) + / static_cast<double>(maFullBound.GetHeight()); + } + tools::Long nSnap = 0; + + if(!getSdrDragView().IsRotateAllowed()) + nSnap = 90; + + if(nSnap != 0) + { + fWAngle = static_cast<double>((static_cast<tools::Long>(fWAngle) + nSnap/2) / nSnap * nSnap); + fHAngle = static_cast<double>((static_cast<tools::Long>(fHAngle) + nSnap/2) / nSnap * nSnap); + } + + // to radians + fWAngle = basegfx::deg2rad(fWAngle); + fHAngle = basegfx::deg2rad(fHAngle); + + // Determine transformation + basegfx::B3DHomMatrix aRotMat; + if(E3dDragConstraint::Y & meConstraint) + { + if(nModifier & KEY_MOD2) + aRotMat.rotate(0.0, 0.0, fWAngle); + else + aRotMat.rotate(0.0, fWAngle, 0.0); + } + else if(E3dDragConstraint::Z & meConstraint) + { + if(nModifier & KEY_MOD2) + aRotMat.rotate(0.0, fWAngle, 0.0); + else + aRotMat.rotate(0.0, 0.0, fWAngle); + } + if(E3dDragConstraint::X & meConstraint) + { + aRotMat.rotate(fHAngle, 0.0, 0.0); + } + + const E3dScene* pScene(rCandidate.mr3DObj.getRootE3dSceneFromE3dObject()); + + if(nullptr != pScene) + { + // Transformation in eye coordinates, there rotate then and back + const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(pScene->GetViewContact()); + const drawinglayer::geometry::ViewInformation3D& aViewInfo3D(rVCScene.getViewInformation3D()); + basegfx::B3DHomMatrix aInverseOrientation(aViewInfo3D.getOrientation()); + aInverseOrientation.invert(); + + basegfx::B3DHomMatrix aTransMat(rCandidate.maDisplayTransform); + aTransMat *= aViewInfo3D.getOrientation(); + aTransMat.translate(-maGlobalCenter.getX(), -maGlobalCenter.getY(), -maGlobalCenter.getZ()); + aTransMat *= aRotMat; + aTransMat.translate(maGlobalCenter.getX(), maGlobalCenter.getY(), maGlobalCenter.getZ()); + aTransMat *= aInverseOrientation; + aTransMat *= rCandidate.maInvDisplayTransform; + + // ...and apply + rCandidate.maTransform *= aTransMat; + + if(mbMoveFull) + { + E3DModifySceneSnapRectUpdater aUpdater(&rCandidate.mr3DObj); + rCandidate.mr3DObj.SetTransform(rCandidate.maTransform); + } + else + { + Hide(); + rCandidate.maWireframePoly.transform(aTransMat); + Show(); + } + } + } + maLastPos = rPnt; + DragStat().NextMove(rPnt); +} + +PointerStyle E3dDragRotate::GetSdrDragPointer() const +{ + return PointerStyle::Rotate; +} + +// E3dDragMove. This drag method is only required for translations inside +// 3D scenes. If a 3D-scene itself moved, then this drag method will drag +// not be used. + + +E3dDragMove::E3dDragMove(SdrDragView &_rView, + const SdrMarkList& rMark, + SdrHdlKind eDrgHdl, + E3dDragConstraint eConstr, + bool bFull) +: E3dDragMethod(_rView, rMark, eConstr, bFull), + meWhatDragHdl(eDrgHdl) +{ + switch(meWhatDragHdl) + { + case SdrHdlKind::Left: + maScaleFixPos = maFullBound.RightCenter(); + break; + case SdrHdlKind::Right: + maScaleFixPos = maFullBound.LeftCenter(); + break; + case SdrHdlKind::Upper: + maScaleFixPos = maFullBound.BottomCenter(); + break; + case SdrHdlKind::Lower: + maScaleFixPos = maFullBound.TopCenter(); + break; + case SdrHdlKind::UpperLeft: + maScaleFixPos = maFullBound.BottomRight(); + break; + case SdrHdlKind::UpperRight: + maScaleFixPos = maFullBound.BottomLeft(); + break; + case SdrHdlKind::LowerLeft: + maScaleFixPos = maFullBound.TopRight(); + break; + case SdrHdlKind::LowerRight: + maScaleFixPos = maFullBound.TopLeft(); + break; + default: + // Moving the object, SdrHdlKind::Move + break; + } + + // Override when IsResizeAtCenter() + if(getSdrDragView().IsResizeAtCenter()) + { + meWhatDragHdl = SdrHdlKind::User; + maScaleFixPos = maFullBound.Center(); + } +} + +// The object is moved, determine the translations + +void E3dDragMove::MoveSdrDrag(const Point& rPnt) +{ + // call parent + E3dDragMethod::MoveSdrDrag(rPnt); + + if(!DragStat().CheckMinMoved(rPnt)) + return; + + if(SdrHdlKind::Move == meWhatDragHdl) + { + // Translation + // Determine the motion vector + const sal_uInt32 nCnt(maGrp.size()); + + // Get modifier + sal_uInt16 nModifier(0); + + if(auto pDragView = dynamic_cast<const E3dView*>(&getSdrDragView())) + { + const MouseEvent& rLastMouse = pDragView->GetMouseEvent(); + nModifier = rLastMouse.GetModifier(); + } + + for(sal_uInt32 nOb(0); nOb < nCnt; nOb++) + { + E3dDragMethodUnit& rCandidate = maGrp[nOb]; + const E3dScene* pScene(rCandidate.mr3DObj.getRootE3dSceneFromE3dObject()); + + if(nullptr != pScene) + { + const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(pScene->GetViewContact()); + const drawinglayer::geometry::ViewInformation3D& aViewInfo3D(rVCScene.getViewInformation3D()); + + // move coor from 2d world to 3d Eye + basegfx::B2DPoint aGlobalMoveHead2D(static_cast<double>(rPnt.X() - maLastPos.X()), static_cast<double>(rPnt.Y() - maLastPos.Y())); + basegfx::B2DPoint aGlobalMoveTail2D(0.0, 0.0); + basegfx::B2DHomMatrix aInverseSceneTransform(rVCScene.getObjectTransformation()); + + aInverseSceneTransform.invert(); + aGlobalMoveHead2D = aInverseSceneTransform * aGlobalMoveHead2D; + aGlobalMoveTail2D = aInverseSceneTransform * aGlobalMoveTail2D; + + basegfx::B3DPoint aMoveHead3D(aGlobalMoveHead2D.getX(), aGlobalMoveHead2D.getY(), 0.5); + basegfx::B3DPoint aMoveTail3D(aGlobalMoveTail2D.getX(), aGlobalMoveTail2D.getY(), 0.5); + basegfx::B3DHomMatrix aInverseViewToEye(aViewInfo3D.getDeviceToView() * aViewInfo3D.getProjection()); + aInverseViewToEye.invert(); + + aMoveHead3D = aInverseViewToEye * aMoveHead3D; + aMoveTail3D = aInverseViewToEye * aMoveTail3D; + + // eventually switch movement from XY to XZ plane + if(nModifier & KEY_MOD2) + { + double fZwi = aMoveHead3D.getY(); + aMoveHead3D.setY(aMoveHead3D.getZ()); + aMoveHead3D.setZ(fZwi); + + fZwi = aMoveTail3D.getY(); + aMoveTail3D.setY(aMoveTail3D.getZ()); + aMoveTail3D.setZ(fZwi); + } + + // Motion vector from eye coordinates to parent coordinates + basegfx::B3DHomMatrix aInverseOrientation(aViewInfo3D.getOrientation()); + aInverseOrientation.invert(); + basegfx::B3DHomMatrix aCompleteTrans(rCandidate.maInvDisplayTransform * aInverseOrientation); + + aMoveHead3D = aCompleteTrans * aMoveHead3D; + aMoveTail3D = aCompleteTrans* aMoveTail3D; + + // build transformation + basegfx::B3DHomMatrix aTransMat; + basegfx::B3DPoint aTranslate(aMoveHead3D - aMoveTail3D); + aTransMat.translate(aTranslate.getX(), aTranslate.getY(), aTranslate.getZ()); + + // ...and apply + rCandidate.maTransform *= aTransMat; + + if(mbMoveFull) + { + E3DModifySceneSnapRectUpdater aUpdater(&rCandidate.mr3DObj); + rCandidate.mr3DObj.SetTransform(rCandidate.maTransform); + } + else + { + Hide(); + rCandidate.maWireframePoly.transform(aTransMat); + Show(); + } + } + } + } + else + { + // Scaling + // Determine scaling vector + Point aStartPos = DragStat().GetStart(); + const sal_uInt32 nCnt(maGrp.size()); + + for(sal_uInt32 nOb(0); nOb < nCnt; nOb++) + { + E3dDragMethodUnit& rCandidate = maGrp[nOb]; + const basegfx::B3DPoint aObjectCenter(rCandidate.mr3DObj.GetBoundVolume().getCenter()); + const E3dScene* pScene(rCandidate.mr3DObj.getRootE3dSceneFromE3dObject()); + + if(nullptr != pScene) + { + // transform from 2D world view to 3D eye + const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(pScene->GetViewContact()); + const drawinglayer::geometry::ViewInformation3D& aViewInfo3D(rVCScene.getViewInformation3D()); + + basegfx::B2DPoint aGlobalScaleStart2D(static_cast<double>(aStartPos.X()), static_cast<double>(aStartPos.Y())); + basegfx::B2DPoint aGlobalScaleNext2D(static_cast<double>(rPnt.X()), static_cast<double>(rPnt.Y())); + basegfx::B2DPoint aGlobalScaleFixPos2D(static_cast<double>(maScaleFixPos.X()), static_cast<double>(maScaleFixPos.Y())); + basegfx::B2DHomMatrix aInverseSceneTransform(rVCScene.getObjectTransformation()); + + aInverseSceneTransform.invert(); + aGlobalScaleStart2D = aInverseSceneTransform * aGlobalScaleStart2D; + aGlobalScaleNext2D = aInverseSceneTransform * aGlobalScaleNext2D; + aGlobalScaleFixPos2D = aInverseSceneTransform * aGlobalScaleFixPos2D; + + basegfx::B3DPoint aGlobalScaleStart3D(aGlobalScaleStart2D.getX(), aGlobalScaleStart2D.getY(), aObjectCenter.getZ()); + basegfx::B3DPoint aGlobalScaleNext3D(aGlobalScaleNext2D.getX(), aGlobalScaleNext2D.getY(), aObjectCenter.getZ()); + basegfx::B3DPoint aGlobalScaleFixPos3D(aGlobalScaleFixPos2D.getX(), aGlobalScaleFixPos2D.getY(), aObjectCenter.getZ()); + basegfx::B3DHomMatrix aInverseViewToEye(aViewInfo3D.getDeviceToView() * aViewInfo3D.getProjection()); + + aInverseViewToEye.invert(); + basegfx::B3DPoint aScStart(aInverseViewToEye * aGlobalScaleStart3D); + basegfx::B3DPoint aScNext(aInverseViewToEye * aGlobalScaleNext3D); + basegfx::B3DPoint aScFixPos(aInverseViewToEye * aGlobalScaleFixPos3D); + + // constraints? + switch(meWhatDragHdl) + { + case SdrHdlKind::Left: + case SdrHdlKind::Right: + // to constrain on X -> Y equal + aScNext.setY(aScFixPos.getY()); + break; + case SdrHdlKind::Upper: + case SdrHdlKind::Lower: + // constrain to Y -> X equal + aScNext.setX(aScFixPos.getX()); + break; + default: + break; + } + + // get scale vector in eye coordinates + basegfx::B3DPoint aScaleVec(aScStart - aScFixPos); + aScaleVec.setZ(1.0); + + if(aScaleVec.getX() != 0.0) + { + aScaleVec.setX((aScNext.getX() - aScFixPos.getX()) / aScaleVec.getX()); + } + else + { + aScaleVec.setX(1.0); + } + + if(aScaleVec.getY() != 0.0) + { + aScaleVec.setY((aScNext.getY() - aScFixPos.getY()) / aScaleVec.getY()); + } + else + { + aScaleVec.setY(1.0); + } + + // SHIFT-key used? + if(getSdrDragView().IsOrtho()) + { + if(fabs(aScaleVec.getX()) > fabs(aScaleVec.getY())) + { + // X is biggest + aScaleVec.setY(aScaleVec.getX()); + } + else + { + // Y is biggest + aScaleVec.setX(aScaleVec.getY()); + } + } + + // build transformation + basegfx::B3DHomMatrix aInverseOrientation(aViewInfo3D.getOrientation()); + aInverseOrientation.invert(); + + basegfx::B3DHomMatrix aNewTrans = rCandidate.maInitTransform; + aNewTrans *= rCandidate.maDisplayTransform; + aNewTrans *= aViewInfo3D.getOrientation(); + aNewTrans.translate(-aScFixPos.getX(), -aScFixPos.getY(), -aScFixPos.getZ()); + aNewTrans.scale(aScaleVec.getX(), aScaleVec.getY(), aScaleVec.getZ()); + aNewTrans.translate(aScFixPos.getX(), aScFixPos.getY(), aScFixPos.getZ()); + aNewTrans *= aInverseOrientation; + aNewTrans *= rCandidate.maInvDisplayTransform; + + // ...and apply + rCandidate.maTransform = aNewTrans; + + if(mbMoveFull) + { + E3DModifySceneSnapRectUpdater aUpdater(&rCandidate.mr3DObj); + rCandidate.mr3DObj.SetTransform(rCandidate.maTransform); + } + else + { + Hide(); + rCandidate.maWireframePoly.clear(); + rCandidate.maWireframePoly = rCandidate.mr3DObj.CreateWireframe(); + rCandidate.maWireframePoly.transform(rCandidate.maTransform); + Show(); + } + } + } + } + maLastPos = rPnt; + DragStat().NextMove(rPnt); +} + +PointerStyle E3dDragMove::GetSdrDragPointer() const +{ + return PointerStyle::Move; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |