svx/inc/sdr/contact/viewcontactofe3d.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
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   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #pragma once
  21
  22 #include <svx/obj3d.hxx>
  23 #include <svx/sdr/contact/viewcontactofsdrobj.hxx>
  24 #include <drawinglayer/primitive3d/baseprimitive3d.hxx>
  25
  26 namespace drawinglayer::attribute
  27 {
  28 class SdrLineAttribute;
  29 }
  30 namespace basegfx
  31 {
  32 class BColor;
  33 class B3DHomMatrix;
  34 }
  35
  36 namespace sdr::contact
  37 {
  38 class ViewContactOfE3dScene;
  39
  40 class ViewContactOfE3d : public ViewContactOfSdrObj
  41 {
  42 protected:
  43     // Create an Object-Specific ViewObjectContact, set ViewContact and
  44     // ObjectContact. Always needs to return something.
  45     virtual ViewObjectContact&
  46     CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact) override;
  47
  48 public:
  49     // basic constructor, used from E3dObject.
  50     explicit ViewContactOfE3d(E3dObject& rObj);
  51     virtual ~ViewContactOfE3d() override;
  52
  53     // access to E3dObject
  54     const E3dObject& GetE3dObject() const { return static_cast<const E3dObject&>(GetSdrObject()); }
  55
  56     // public helpers
  57     drawinglayer::primitive2d::Primitive2DContainer impCreateWithGivenPrimitive3DContainer(
  58         const drawinglayer::primitive3d::Primitive3DContainer& rxContent3D) const;
  59
  60     // primitive stuff
  61
  62 protected:
  63     // This method is responsible for creating the graphical visualisation data which is
  64     // stored in mxViewIndependentPrimitive3DContainer, but without object transformation
  65     virtual drawinglayer::primitive3d::Primitive3DContainer
  66     createViewIndependentPrimitive3DContainer() const = 0;
  67
  68     // This method is responsible for creating the graphical visualisation data derived ONLY from
  69     // the model data. The default implementation will try to create a 3D to 2D embedding (will work
  70     // when scene is known) which can then be used for 2D processing concerning ranges
  71     virtual void createViewIndependentPrimitive2DSequence(
  72         drawinglayer::primitive2d::Primitive2DDecompositionVisitor& rVisitor) const override;
  73
  74 public:
  75     // access to the local primitive without the object's local 3D transform. This is e.g. needed
  76     // to get the not-yet transformed BoundVolume for e.g. interactions
  77     drawinglayer::primitive3d::Primitive3DContainer const& getVIP3DSWithoutObjectTransform() const;
  78
  79     // access to the local primitive. This will ensure that the list is
  80     // current in comparing the local list content with a fresh created incarnation. It will
  81     // use getVIP3DSWithoutObjectTransform and embed to 3d transform primitive when object's
  82     // local 3d transform is used
  83     drawinglayer::primitive3d::Primitive3DContainer getViewIndependentPrimitive3DContainer() const;
  84
  85 private:
  86     // Primitive3DContainer of the ViewContact. This contains all necessary information
  87     // for the graphical visualisation and needs to be supported by all 3D VCs which
  88     // can be visualized. It does NOT contain the object transformation to be able to
  89     // buffer for all possible usages
  90     drawinglayer::primitive3d::Primitive3DContainer mxViewIndependentPrimitive3DContainer;
  91 };
  92 }
  93
  94 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */