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Diffstat (limited to 'include/svx/sdr/contact/viewcontact.hxx')
| -rw-r--r-- | include/svx/sdr/contact/viewcontact.hxx | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/include/svx/sdr/contact/viewcontact.hxx b/include/svx/sdr/contact/viewcontact.hxx new file mode 100644 index 000000000..ffdc6d055 --- /dev/null +++ b/include/svx/sdr/contact/viewcontact.hxx @@ -0,0 +1,154 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_SVX_SDR_CONTACT_VIEWCONTACT_HXX +#define INCLUDED_SVX_SDR_CONTACT_VIEWCONTACT_HXX + +#include <sal/types.h> +#include <svx/svxdllapi.h> +#include <drawinglayer/primitive2d/Primitive2DContainer.hxx> + +class SdrLayerIDSet; +class SdrPage; +class SdrObject; + +namespace sdr::contact +{ +class ObjectContact; +class ViewObjectContact; + +class SVXCORE_DLLPUBLIC ViewContact +{ +private: + // make ViewObjectContact a friend to exclusively allow it to use + // AddViewObjectContact/RemoveViewObjectContact + friend class 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 + virtual void 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 + virtual void 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; + + // add Gluepoints (if available) + virtual drawinglayer::primitive2d::Primitive2DContainer + createGluePointPrimitive2DSequence() 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; + + virtual basegfx::B2DRange + getRange(const drawinglayer::geometry::ViewInformation2D& rViewInfo2D) 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); +}; +} + +#endif // INCLUDED_SVX_SDR_CONTACT_VIEWCONTACT_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |