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Diffstat (limited to 'svx/source/svdraw/sdrhittesthelper.cxx')
| -rw-r--r-- | svx/source/svdraw/sdrhittesthelper.cxx | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/svx/source/svdraw/sdrhittesthelper.cxx b/svx/source/svdraw/sdrhittesthelper.cxx new file mode 100644 index 000000000..62ebde956 --- /dev/null +++ b/svx/source/svdraw/sdrhittesthelper.cxx @@ -0,0 +1,176 @@ +/* -*- 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 <svx/sdrhittesthelper.hxx> +#include <svx/obj3d.hxx> +#include <svx/helperhittest3d.hxx> +#include <svx/svdpage.hxx> +#include <svx/sdrpagewindow.hxx> +#include <svx/sdr/contact/viewobjectcontact.hxx> +#include <svx/sdr/contact/displayinfo.hxx> +#include <svx/sdr/contact/objectcontact.hxx> +#include <drawinglayer/processor2d/hittestprocessor2d.hxx> +#include <svx/svdpagv.hxx> +#include <svx/sdr/contact/viewcontact.hxx> + + +// #i101872# new Object HitTest as View-tooling + +SdrObject* SdrObjectPrimitiveHit( + const SdrObject& rObject, + const Point& rPnt, + sal_uInt16 nTol, + const SdrPageView& rSdrPageView, + const SdrLayerIDSet* pVisiLayer, + bool bTextOnly, + drawinglayer::primitive2d::Primitive2DContainer* pHitContainer) +{ + SdrObject* pResult = nullptr; + + if(rObject.GetSubList() && rObject.GetSubList()->GetObjCount()) + { + // group or scene with content. Single 3D objects also have a + // true == rObject.GetSubList(), but no content + pResult = SdrObjListPrimitiveHit(*rObject.GetSubList(), rPnt, nTol, rSdrPageView, pVisiLayer, bTextOnly); + } + else + { + if( rObject.IsVisible() && (!pVisiLayer || pVisiLayer->IsSet(rObject.GetLayer()))) + { + // single object, 3d object, empty scene or empty group. Check if + // it's a single 3D object + const E3dCompoundObject* pE3dCompoundObject = dynamic_cast< const E3dCompoundObject* >(&rObject); + + if(pE3dCompoundObject) + { + const basegfx::B2DPoint aHitPosition(rPnt.X(), rPnt.Y()); + + if(checkHitSingle3DObject(aHitPosition, *pE3dCompoundObject)) + { + pResult = const_cast< E3dCompoundObject* >(pE3dCompoundObject); + } + } + else + { + // not a single 3D object; Check in first PageWindow using primitives (only SC + // with split views uses multiple PageWindows nowadays) + if(rSdrPageView.PageWindowCount()) + { + const double fLogicTolerance(nTol); + const basegfx::B2DPoint aHitPosition(rPnt.X(), rPnt.Y()); + const sdr::contact::ViewObjectContact& rVOC = rObject.GetViewContact().GetViewObjectContact( + rSdrPageView.GetPageWindow(0)->GetObjectContact()); + + if(ViewObjectContactPrimitiveHit(rVOC, aHitPosition, fLogicTolerance, bTextOnly, pHitContainer)) + { + pResult = const_cast< SdrObject* >(&rObject); + } + } + } + } + } + + return pResult; +} + + +SdrObject* SdrObjListPrimitiveHit( + const SdrObjList& rList, + const Point& rPnt, + sal_uInt16 nTol, + const SdrPageView& rSdrPageView, + const SdrLayerIDSet* pVisiLayer, + bool bTextOnly) +{ + size_t nObjNum(rList.GetObjCount()); + SdrObject* pRetval = nullptr; + + while(!pRetval && nObjNum > 0) + { + nObjNum--; + SdrObject* pObj = rList.GetObj(nObjNum); + + pRetval = SdrObjectPrimitiveHit(*pObj, rPnt, nTol, rSdrPageView, pVisiLayer, bTextOnly); + } + + return pRetval; +} + + +bool ViewObjectContactPrimitiveHit( + const sdr::contact::ViewObjectContact& rVOC, + const basegfx::B2DPoint& rHitPosition, + double fLogicHitTolerance, + bool bTextOnly, + drawinglayer::primitive2d::Primitive2DContainer* pHitContainer) +{ + basegfx::B2DRange aObjectRange(rVOC.getObjectRange()); + + if(!aObjectRange.isEmpty()) + { + // first do a rough B2DRange based HitTest; do not forget to + // include the HitTolerance if given + if(basegfx::fTools::more(fLogicHitTolerance, 0.0)) + { + aObjectRange.grow(fLogicHitTolerance); + } + + if(aObjectRange.isInside(rHitPosition)) + { + // get primitive sequence + sdr::contact::DisplayInfo aDisplayInfo; + // have to make a copy of this container here, because it might be changed underneath us + const drawinglayer::primitive2d::Primitive2DContainer aSequence(rVOC.getPrimitive2DSequence(aDisplayInfo)); + + if(!aSequence.empty()) + { + // create a HitTest processor + const drawinglayer::geometry::ViewInformation2D& rViewInformation2D = rVOC.GetObjectContact().getViewInformation2D(); + drawinglayer::processor2d::HitTestProcessor2D aHitTestProcessor2D( + rViewInformation2D, + rHitPosition, + fLogicHitTolerance, + bTextOnly); + + // ask for HitStack + aHitTestProcessor2D.collectHitStack(pHitContainer != nullptr); + + // feed it with the primitives + aHitTestProcessor2D.process(aSequence); + + // deliver result + if (aHitTestProcessor2D.getHit()) + { + if (pHitContainer) + { + // fetch HitStack primitives if requested + *pHitContainer = aHitTestProcessor2D.getHitStack(); + } + + return true; + } + } + } + } + + return false; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |