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Diffstat (limited to 'svx/source/sdr/contact/viewcontact.cxx')
| -rw-r--r-- | svx/source/sdr/contact/viewcontact.cxx | 329 |
1 files changed, 329 insertions, 0 deletions
diff --git a/svx/source/sdr/contact/viewcontact.cxx b/svx/source/sdr/contact/viewcontact.cxx new file mode 100644 index 000000000000..3057acf55df1 --- /dev/null +++ b/svx/source/sdr/contact/viewcontact.cxx @@ -0,0 +1,329 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_svx.hxx" +#include <svx/sdr/contact/viewcontact.hxx> +#include <svx/sdr/contact/viewobjectcontact.hxx> +#include <svx/sdr/contact/objectcontact.hxx> +#include <basegfx/polygon/b2dpolygon.hxx> +#include <basegfx/polygon/b2dpolygontools.hxx> +#include <basegfx/color/bcolor.hxx> +#include <drawinglayer/primitive2d/polygonprimitive2d.hxx> +#include <basegfx/matrix/b2dhommatrix.hxx> +#include <svx/sdr/contact/objectcontactofpageview.hxx> + +////////////////////////////////////////////////////////////////////////////// + +namespace sdr +{ + namespace contact + { + // Create a Object-Specific ViewObjectContact, set ViewContact and + // ObjectContact. Always needs to return something. Default is to create + // a standard ViewObjectContact containing the given ObjectContact and *this + ViewObjectContact& ViewContact::CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact) + { + return *(new ViewObjectContact(rObjectContact, *this)); + } + + ViewContact::ViewContact() + : maViewObjectContactVector(), + mxViewIndependentPrimitive2DSequence() + { + } + + // Methods to react on start getting viewed or stop getting + // viewed. This info is derived from the count of members of + // registered ViewObjectContacts. Default does nothing. + void ViewContact::StartGettingViewed() + { + } + + void ViewContact::StopGettingViewed() + { + } + + ViewContact::~ViewContact() + { + deleteAllVOCs(); + } + + void ViewContact::deleteAllVOCs() + { + // get rid of all VOCs + // #i84257# To avoid that each 'delete pCandidate' again uses + // the local RemoveViewObjectContact with a search and removal in the + // vector, simply copy and clear local vector. + std::vector< ViewObjectContact* > aLocalVOCList(maViewObjectContactVector); + maViewObjectContactVector.clear(); + + while(aLocalVOCList.size()) + { + ViewObjectContact* pCandidate = aLocalVOCList.back(); + aLocalVOCList.pop_back(); + DBG_ASSERT(pCandidate, "Corrupted ViewObjectContactList in VC (!)"); + + // ViewObjectContacts only make sense with View and Object contacts. + // When the contact to the SdrObject is deleted like in this case, + // all ViewObjectContacts can be deleted, too. + delete pCandidate; + } + + // assert when there were new entries added during deletion + DBG_ASSERT(maViewObjectContactVector.empty(), "Corrupted ViewObjectContactList in VC (!)"); + } + + // get a Object-specific ViewObjectContact for a specific + // ObjectContact (->View). Always needs to return something. + ViewObjectContact& ViewContact::GetViewObjectContact(ObjectContact& rObjectContact) + { + ViewObjectContact* pRetval = 0L; + const sal_uInt32 nCount(maViewObjectContactVector.size()); + + // first search if there exists a VOC for the given OC + for(sal_uInt32 a(0); !pRetval && a < nCount; a++) + { + ViewObjectContact* pCandidate = maViewObjectContactVector[a]; + DBG_ASSERT(pCandidate, "Corrupted ViewObjectContactList (!)"); + + if(&(pCandidate->GetObjectContact()) == &rObjectContact) + { + pRetval = pCandidate; + } + } + + if(!pRetval) + { + // create a new one. It's inserted to the local list from the + // VieObjectContact constructor via AddViewObjectContact() + pRetval = &CreateObjectSpecificViewObjectContact(rObjectContact); + } + + return *pRetval; + } + + // A new ViewObjectContact was created and shall be remembered. + void ViewContact::AddViewObjectContact(ViewObjectContact& rVOContact) + { + maViewObjectContactVector.push_back(&rVOContact); + + if(1L == maViewObjectContactVector.size()) + { + StartGettingViewed(); + } + } + + // A ViewObjectContact was deleted and shall be forgotten. + void ViewContact::RemoveViewObjectContact(ViewObjectContact& rVOContact) + { + std::vector< ViewObjectContact* >::iterator aFindResult = std::find(maViewObjectContactVector.begin(), maViewObjectContactVector.end(), &rVOContact); + + if(aFindResult != maViewObjectContactVector.end()) + { + maViewObjectContactVector.erase(aFindResult); + + if(0 == maViewObjectContactVector.size()) + { + // This may need to get asynchron later since it eventually triggers + // deletes of OCs where the VOC is still added. + StopGettingViewed(); + } + } + } + + // Test if this ViewContact has ViewObjectContacts at all. This can + // be used to test if this ViewContact is visualized ATM or not + bool ViewContact::HasViewObjectContacts(bool bExcludePreviews) const + { + const sal_uInt32 nCount(maViewObjectContactVector.size()); + + if(bExcludePreviews) + { + for(sal_uInt32 a(0); a < nCount; a++) + { + if(!maViewObjectContactVector[a]->GetObjectContact().IsPreviewRenderer()) + { + return true; + } + } + + return false; + } + else + { + return (0L != nCount); + } + } + + // Test if this ViewContact has ViewObjectContacts at all. This can + // be used to test if this ViewContact is visualized ATM or not + bool ViewContact::isAnimatedInAnyViewObjectContact() const + { + const sal_uInt32 nCount(maViewObjectContactVector.size()); + + for(sal_uInt32 a(0); a < nCount; a++) + { + if(maViewObjectContactVector[a]->isAnimated()) + { + return true; + } + } + + return false; + } + + // Access to possible sub-hierarchy and parent. GetObjectCount() default is 0L + // and GetViewContact default pops up an assert since it's an error if + // GetObjectCount has a result != 0 and it's not overloaded. + sal_uInt32 ViewContact::GetObjectCount() const + { + // no sub-objects + return 0; + } + + ViewContact& ViewContact::GetViewContact(sal_uInt32 /*nIndex*/) const + { + // This is the default implementation; call would be an error + DBG_ERROR("ViewContact::GetViewContact: This call needs to be overloaded when GetObjectCount() can return results != 0 (!)"); + return (ViewContact&)(*this); + } + + ViewContact* ViewContact::GetParentContact() const + { + // default has no parent + return 0; + } + + void ViewContact::ActionChildInserted(ViewContact& rChild) + { + // propagate change to all exsisting visualisations which + // will force a VOC for the new child and invalidate it's range + const sal_uInt32 nCount(maViewObjectContactVector.size()); + + for(sal_uInt32 a(0); a < nCount; a++) + { + ViewObjectContact* pCandidate = maViewObjectContactVector[a]; + DBG_ASSERT(pCandidate, "ViewContact::GetViewObjectContact() invalid ViewObjectContactList (!)"); + + // take action at all VOCs. At the VOCs ObjectContact the initial + // rectangle will be invalidated at the associated OutputDevice. + pCandidate->ActionChildInserted(rChild); + } + } + + // React on changes of the object of this ViewContact + void ViewContact::ActionChanged() + { + // propagate change to all existing VOCs. This will invalidate + // all drawn visualisations in all known views + const sal_uInt32 nCount(maViewObjectContactVector.size()); + + for(sal_uInt32 a(0); a < nCount; a++) + { + ViewObjectContact* pCandidate = maViewObjectContactVector[a]; + DBG_ASSERT(pCandidate, "ViewContact::GetViewObjectContact() invalid ViewObjectContactList (!)"); + + pCandidate->ActionChanged(); + } + } + + // access to SdrObject and/or SdrPage. May return 0L like the default + // implementations do. Needs to be overloaded as needed. + SdrObject* ViewContact::TryToGetSdrObject() const + { + return 0L; + } + + SdrPage* ViewContact::TryToGetSdrPage() const + { + return 0L; + } + + ////////////////////////////////////////////////////////////////////////////// + // primitive stuff + + drawinglayer::primitive2d::Primitive2DSequence ViewContact::createViewIndependentPrimitive2DSequence() const + { + // This is the default impelemtation and should never be called (see header). If this is called, + // someone implemented a ViewContact (VC) visualisation object without defining the visualisation by + // providing a seqence of primitives -> which cannot be correct. + // Since we have no access to any known model data here, the default implementation creates a yellow placeholder + // hairline polygon with a default size of (1000, 1000, 5000, 3000) + DBG_ERROR("ViewContact::createViewIndependentPrimitive2DSequence(): Never call the fallback base implementation, this is always an error (!)"); + const basegfx::B2DPolygon aOutline(basegfx::tools::createPolygonFromRect(basegfx::B2DRange(1000.0, 1000.0, 5000.0, 3000.0))); + const basegfx::BColor aYellow(1.0, 1.0, 0.0); + const drawinglayer::primitive2d::Primitive2DReference xReference( + new drawinglayer::primitive2d::PolygonHairlinePrimitive2D(aOutline, aYellow)); + + return drawinglayer::primitive2d::Primitive2DSequence(&xReference, 1); + } + + drawinglayer::primitive2d::Primitive2DSequence ViewContact::getViewIndependentPrimitive2DSequence() const + { + // local up-to-date checks. Create new list and compare. + const drawinglayer::primitive2d::Primitive2DSequence xNew(createViewIndependentPrimitive2DSequence()); + + if(!drawinglayer::primitive2d::arePrimitive2DSequencesEqual(mxViewIndependentPrimitive2DSequence, xNew)) + { + // has changed, copy content + const_cast< ViewContact* >(this)->mxViewIndependentPrimitive2DSequence = xNew; + } + + // return current Primitive2DSequence + return mxViewIndependentPrimitive2DSequence; + } + + // add Gluepoints (if available) + drawinglayer::primitive2d::Primitive2DSequence ViewContact::createGluePointPrimitive2DSequence() const + { + // default returns empty reference + return drawinglayer::primitive2d::Primitive2DSequence(); + } + + void ViewContact::flushViewObjectContacts(bool bWithHierarchy) + { + if(bWithHierarchy) + { + // flush DrawingLayer hierarchy + const sal_uInt32 nCount(GetObjectCount()); + + for(sal_uInt32 a(0); a < nCount; a++) + { + ViewContact& rChild = GetViewContact(a); + rChild.flushViewObjectContacts(bWithHierarchy); + } + } + + // delete local VOCs + deleteAllVOCs(); + } + } // end of namespace contact +} // end of namespace sdr + +////////////////////////////////////////////////////////////////////////////// +// eof |