1 files changed, 142 insertions, 0 deletions
diff --git a/include/svx/sdr/contact/viewobjectcontact.hxx b/include/svx/sdr/contact/viewobjectcontact.hxx
new file mode 100644
index 000000000..1be4cac81
--- /dev/null
+++ b/include/svx/sdr/contact/viewobjectcontact.hxx
@@ -0,0 +1,142 @@
+/* -*- 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
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */