/* -*- 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
{ class DisplayInfo; class ObjectContact; class ViewObjectContact;
class SVXCORE_DLLPUBLIC ViewContact
{ private: // make ViewObjectContact a friend to exclusively allow it to use // AddViewObjectContact/RemoveViewObjectContact friendclass ViewObjectContact;
// List of ViewObjectContacts. This contains all VOCs which were constructed // with this VC. Since the VOCs remember a reference to this VC, this list needs // to be kept and is used e.g. at destructor to destroy all VOCs. // Registering and de-registering is done in the VOC constructors/destructors.
std::vector<ViewObjectContact*> maViewObjectContactVector;
// Primitive2DContainer of the ViewContact. This contains all necessary information // for the graphical visualisation and needs to be supported by all VCs which // can be visualized.
drawinglayer::primitive2d::Primitive2DContainer mxViewIndependentPrimitive2DSequence;
// A new ViewObjectContact was created and shall be remembered. void AddViewObjectContact(ViewObjectContact& rVOContact);
// A ViewObjectContact was deleted and shall be forgotten. void RemoveViewObjectContact(ViewObjectContact& rVOContact);
// internal tooling to delete VOCs void deleteAllVOCs();
protected: // Interface to allow derivates to travel over the registered VOC's
sal_uInt32 getViewObjectContactCount() const { return maViewObjectContactVector.size(); }
ViewObjectContact* getViewObjectContact(sal_uInt32 a) const
{ return maViewObjectContactVector[a];
}
// 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 virtual ViewObjectContact& CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact);
// This method is responsible for creating the graphical visualisation data derived ONLY from // the model data. It will be stored/buffered in mxViewIndependentPrimitive2DSequence. The default implementation // creates a yellow replacement rectangle (1000, 1000, 5000, 3000) to visualize missing // implementations. All implementations have to provide basic geometry here, this is the central // visualisation method and will also be used for BoundRect computations in the long run. // This means it's always an error when the default implementation is called and thus gets // asserted there virtualvoid createViewIndependentPrimitive2DSequence(
drawinglayer::primitive2d::Primitive2DDecompositionVisitor& rVisitor) const;
// basic constructor. Since this is a base class only, it shall // never be called directly
ViewContact();
public: // basic destructor with needed cleanups virtual ~ViewContact();
// get an Object-specific ViewObjectContact for a specific // ObjectContact (->View). Always needs to return something.
ViewObjectContact& GetViewObjectContact(ObjectContact& rObjectContact);
// Test if this ViewContact has ViewObjectContacts(excluding previews) at all. This can // be used to test if this ViewContact is visualized ATM or not bool HasViewObjectContacts() const;
// Check if this primitive is animated in any OC (View) which means it has // generated a PrimitiveAnimation in its VOC bool isAnimatedInAnyViewObjectContact() const;
// 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. virtual sal_uInt32 GetObjectCount() const; virtual ViewContact& GetViewContact(sal_uInt32 nIndex) const; virtual ViewContact* GetParentContact() const;
// React on insertion of a child into DRawHierarchy starting // from this object void ActionChildInserted(ViewContact& rChild);
// access to SdrObject. May return 0L like the default // implementations do. Override as needed. virtual SdrObject* TryToGetSdrObject() const;
// React on changes of the object of this ViewContact virtualvoid ActionChanged();
// access to the local primitive. This will ensure that the primitive is // current in comparing the local one with a fresh created incarnation void getViewIndependentPrimitive2DContainer(
drawinglayer::primitive2d::Primitive2DDecompositionVisitor& rVisitor) const;
// Allow embedding if needed (e.g. for SdrObjects, evtl. Name, Title and description get added). This // is a helper normally used from getViewIndependentPrimitive2DContainer(), but there is one exception // for 3D scenes. // We take the param by value, since, for the common case, we can just std::move into the param, and // std::move the result out, avoiding copying. virtual drawinglayer::primitive2d::Primitive2DContainer
embedToObjectSpecificInformation(drawinglayer::primitive2d::Primitive2DContainer rSource) const;
// delete all existing VOCs including DrawHierarchy which will invalidate all // visualisations, too. Used mostly at object removal from DrawHierarchy to // delete all existing VOCs by purpose, but can also be used for other purposes. // It is always possible to delete the VOCs, these are re-created on demand void flushViewObjectContacts(bool bWithHierarchy = true);
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