/* -*- 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 .
*/
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() {}
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 (constauto& 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];
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())
{ returntrue;
}
} returnfalse;
}
// 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())
{ returntrue;
}
}
returnfalse;
}
// 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 (!)"); returnconst_cast<ViewContact&>(*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 (!)");
if (pCandidate)
{
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
void ViewContact::createViewIndependentPrimitive2DSequence(
drawinglayer::primitive2d::Primitive2DDecompositionVisitor& rVisitor) 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 (!)");
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(std::move(aOutline), aYellow));
rVisitor.visit(xReference);
}
void ViewContact::getViewIndependentPrimitive2DContainer(
drawinglayer::primitive2d::Primitive2DDecompositionVisitor& rVisitor) const
{ /* Local up-to-date checks. Create new list and compare. We cannot just always use the new data because the old data has cached bitmaps in it e.g. see the document in tdf#146108.
*/
drawinglayer::primitive2d::Primitive2DContainer xNew;
createViewIndependentPrimitive2DSequence(xNew);
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
rVisitor.visit(mxViewIndependentPrimitive2DSequence);
}
drawinglayer::primitive2d::Primitive2DContainer ViewContact::embedToObjectSpecificInformation(
drawinglayer::primitive2d::Primitive2DContainer aSource) const
{ // nothing to do for default return aSource;
}
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