/* -*- 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 #include #include #include #include #include #include #include namespace sdr::contact { // Create an 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() { } 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; aLocalVOCList.swap(maViewObjectContactVector); for (const auto & pCandidate : aLocalVOCList) // 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 an Object-specific ViewObjectContact for a specific // ObjectContact (->View). Always needs to return something. ViewObjectContact& ViewContact::GetViewObjectContact(ObjectContact& rObjectContact) { ViewObjectContact* pRetval = nullptr; 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 // ViewObjectContact 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); } // 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); } } // 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() const { const sal_uInt32 nCount(maViewObjectContactVector.size()); for(sal_uInt32 a(0); a < nCount; a++) { if(!maViewObjectContactVector[a]->GetObjectContact().IsPreviewRenderer()) { return true; } } return false; } // 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 overridden. 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 OSL_FAIL("ViewContact::GetViewContact: This call needs to be overridden when GetObjectCount() can return results != 0 (!)"); return const_cast(*this); } ViewContact* ViewContact::GetParentContact() const { // default has no parent return nullptr; } void ViewContact::ActionChildInserted(ViewContact& rChild) { // propagate change to all existing visualisations which // will force a VOC for the new child and invalidate its 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. Override as needed. SdrObject* ViewContact::TryToGetSdrObject() const { return nullptr; } // primitive stuff drawinglayer::primitive2d::Primitive2DContainer ViewContact::createViewIndependentPrimitive2DSequence() const { // This is the default implementation 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 sequence 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) OSL_FAIL("ViewContact::createViewIndependentPrimitive2DSequence(): Never call the fallback base implementation, this is always an error (!)"); const basegfx::B2DPolygon aOutline(basegfx::utils::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::Primitive2DContainer { xReference }; } drawinglayer::primitive2d::Primitive2DContainer const & ViewContact::getViewIndependentPrimitive2DContainer() const { // local up-to-date checks. Create new list and compare. drawinglayer::primitive2d::Primitive2DContainer xNew(createViewIndependentPrimitive2DSequence()); if(!xNew.empty()) { // allow evtl. embedding in object-specific infos, e.g. Name, Title, Description xNew = embedToObjectSpecificInformation(std::move(xNew)); } if(mxViewIndependentPrimitive2DSequence != xNew) { // has changed, copy content const_cast< ViewContact* >(this)->mxViewIndependentPrimitive2DSequence = std::move(xNew); } // return current Primitive2DContainer return mxViewIndependentPrimitive2DSequence; } // add Gluepoints (if available) drawinglayer::primitive2d::Primitive2DContainer ViewContact::createGluePointPrimitive2DSequence() const { // default returns empty reference return drawinglayer::primitive2d::Primitive2DContainer(); } drawinglayer::primitive2d::Primitive2DContainer ViewContact::embedToObjectSpecificInformation(drawinglayer::primitive2d::Primitive2DContainer aSource) const { // nothing to do for default return aSource; } basegfx::B2DRange ViewContact::getRange( const drawinglayer::geometry::ViewInformation2D& /*rViewInfo2D*/ ) const { // Return empty range. return basegfx::B2DRange(); } 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(); } } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */