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/* -*- 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_VIEWOBJECTCONTACT_HXX
#define INCLUDED_SVX_SDR_CONTACT_VIEWOBJECTCONTACT_HXX
#include <memory>
#include <svx/svxdllapi.h>
#include <drawinglayer/primitive2d/Primitive2DContainer.hxx>
namespace vcl { class Region; }
namespace sdr::animation {
class PrimitiveAnimation;
}
namespace drawinglayer::primitive2d { class Primitive2DDecompositionVisitor; }
namespace sdr::contact {
class DisplayInfo;
class ObjectContact;
class ViewContact;
class ViewObjectContactRedirector;
class SVXCORE_DLLPUBLIC ViewObjectContact
{
private:
// must-exist and constant contacts
ObjectContact& mrObjectContact;
ViewContact& mrViewContact;
// This range defines the object's BoundRect
basegfx::B2DRange maObjectRange;
// PrimitiveSequence 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 mxPrimitive2DSequence;
// the PrimitiveAnimation if Primitive2DContainer contains animations
std::unique_ptr<sdr::animation::PrimitiveAnimation> mpPrimitiveAnimation;
// possible on-demand calculated GridOffset for non-linear ViewToDevice transformation (calc)
basegfx::B2DVector maGridOffset;
// used to detect ActionChanged() during primitive construction
int mnActionChangedCount;
// This bool gets set when the object gets invalidated by ActionChanged() and
// can be used from the OC to late-invalidates
bool mbLazyInvalidate : 1;
protected:
// make redirector a protected friend, it needs to call createPrimitives as default action
friend class ViewObjectContactRedirector;
// Called from getPrimitive2DSequence() when vector has changed. Evaluate object animation
// and setup accordingly
void checkForPrimitive2DAnimations();
// This method is responsible for creating the graphical visualisation data which is
// stored/cached in the local primitive. Default gets view-independent Primitive
// from the ViewContact using ViewContact::getViewIndependentPrimitive2DContainer(), takes care of
// visibility, handles glue and ghosted.
// This method will not handle included hierarchies and not check geometric visibility.
virtual void createPrimitive2DSequence(const DisplayInfo& rDisplayInfo, drawinglayer::primitive2d::Primitive2DDecompositionVisitor& rVisitor) const;
// method for flushing Primitive2DContainer for VOC implementations
void flushPrimitive2DSequence() { mxPrimitive2DSequence.clear(); }
public:
// basic constructor.
ViewObjectContact(ObjectContact& rObjectContact, ViewContact& rViewContact);
virtual ~ViewObjectContact();
// access to ObjectContact
ObjectContact& GetObjectContact() const { return mrObjectContact; }
// access to ViewContact
ViewContact& GetViewContact() const { return mrViewContact; }
// get the object size range
const basegfx::B2DRange& getObjectRange() const;
// React on changes of the object of this ViewContact
virtual void ActionChanged();
// LazyInvalidate handling
void triggerLazyInvalidate();
// Check if this primitive is animated in any OC (View) which means it has
// generated a PrimitiveAnimation
bool isAnimated() const { return (nullptr != mpPrimitiveAnimation); }
// Take some action when new objects are inserted
void ActionChildInserted(ViewContact& rChild);
// access to the local primitive. This will ensure that the local primitive is
// current in comparing the local one with a fresh created incarnation
// This method will not handle included hierarchies and not check visibility.
drawinglayer::primitive2d::Primitive2DContainer const & getPrimitive2DSequence(const DisplayInfo& rDisplayInfo) const;
// test this VOC for visibility concerning model-view stuff like e.g. Layer
virtual bool isPrimitiveVisible(const DisplayInfo& rDisplayInfo) const;
// test this VOC for ghosted mode
virtual bool isPrimitiveGhosted(const DisplayInfo& rDisplayInfo) const;
// process this primitive: Eventually also recursively travel an existing hierarchy,
// e.g. for group objects, scenes or pages. This method will test geometrical visibility.
virtual void getPrimitive2DSequenceHierarchy(DisplayInfo& rDisplayInfo, drawinglayer::primitive2d::Primitive2DDecompositionVisitor& rVisitor) const;
// just process the sub-hierarchy, used as tooling from getPrimitive2DSequenceHierarchy
void getPrimitive2DSequenceSubHierarchy(DisplayInfo& rDisplayInfo, drawinglayer::primitive2d::Primitive2DDecompositionVisitor& rVisitor) const;
// interface to support GridOffset for non-linear ViewToDevice transformation (calc)
const basegfx::B2DVector& getGridOffset() const;
void resetGridOffset();
};
}
#endif // INCLUDED_SVX_SDR_CONTACT_VIEWOBJECTCONTACT_HXX
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