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Date: 2014-04-14 Functions: 0 1 0.0 %
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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       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
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       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             : #ifndef INCLUDED_DRAWINGLAYER_GEOMETRY_VIEWINFORMATION3D_HXX
      21             : #define INCLUDED_DRAWINGLAYER_GEOMETRY_VIEWINFORMATION3D_HXX
      22             : 
      23             : #include <drawinglayer/drawinglayerdllapi.h>
      24             : 
      25             : #include <sal/config.h>
      26             : #include <com/sun/star/uno/Sequence.h>
      27             : #include <com/sun/star/beans/PropertyValue.hpp>
      28             : #include <o3tl/cow_wrapper.hxx>
      29             : 
      30             : 
      31             : // predefines
      32             : 
      33             : namespace drawinglayer { namespace geometry {
      34             :     class ImpViewInformation3D;
      35             : }}
      36             : 
      37             : namespace basegfx {
      38             :     class B3DHomMatrix;
      39             : }
      40             : 
      41             : 
      42             : 
      43             : namespace drawinglayer
      44             : {
      45             :     namespace geometry
      46             :     {
      47             :         /** ViewInformation3D class
      48             : 
      49             :             This class holds all view-relevant information for a 3d geometry. It works
      50             :             together with UNO API definitions and supports holding a sequence of PropertyValues.
      51             :             The most used data is for convenience offered directly using basegfx tooling classes.
      52             :             It is an implementation to support the sequence of PropertyValues used in a
      53             :             ::com::sun::star::graphic::XPrimitive3D for C++ implementations working with those
      54             :         */
      55             :         class DRAWINGLAYER_DLLPUBLIC ViewInformation3D
      56             :         {
      57             :         public:
      58             :             typedef o3tl::cow_wrapper< ImpViewInformation3D, o3tl::ThreadSafeRefCountingPolicy > ImplType;
      59             : 
      60             :         private:
      61             :             /// pointer to private implementation class
      62             :             ImplType mpViewInformation3D;
      63             : 
      64             :         public:
      65             :             /** Constructor: Create a ViewInformation3D
      66             : 
      67             :                 @param rObjectTransformation
      68             :                 The Transformation from Object to World coordinates (normally logic coordinates).
      69             : 
      70             :                 @param rOrientation
      71             :                 A part of the 3D ViewTransformation, the World to Camera coordinates transformation
      72             :                 which holds the camera coordinate system.
      73             : 
      74             :                 @param rProjection
      75             :                 A part of the 3D ViewTransformation, the Camera to Device transformation which
      76             :                 transforms coordinates to a [0.0 .. 1.0] device range in X,Y and Z. Z may be used
      77             :                 as source for for Z-Buffers. This transformation may be e.g. a parallell projection,
      78             :                 but also a perspective one and thus may use the last line of the matrix.
      79             : 
      80             :                 @param rDeviceToView
      81             :                 A part of the 3D ViewTransformation, the Device to View transformation which normally
      82             :                 translates and scales from [0.0 .. 1.0] range in X,Y and Z to discrete position and
      83             :                 size.
      84             : 
      85             :                 rOrientation, rProjection and rDeviceToView define the 3D transformation pipeline
      86             :                 and are normally used multiplied together to have a direct transformation from
      87             :                 World to View coordinates
      88             : 
      89             :                 @param fViewTime
      90             :                 The time the view is defined for. Default is 0.0. This parameter is used e.g. for
      91             :                 animated objects
      92             : 
      93             :                 @param rExtendedParameters
      94             :                 A sequence of property values which allows holding various other parameters besides
      95             :                 the obvious and needed ones above. For this constructor none of the other parameters
      96             :                 should be added as data. The constructor will parse the given parameters and if
      97             :                 data for the other parameters is given, the value in rExtendedParameters will
      98             :                 be preferred and overwrite the given parameter
      99             :             */
     100             :             ViewInformation3D(
     101             :                 const basegfx::B3DHomMatrix& rObjectTransformation,
     102             :                 const basegfx::B3DHomMatrix& rOrientation,
     103             :                 const basegfx::B3DHomMatrix& rProjection,
     104             :                 const basegfx::B3DHomMatrix& rDeviceToView,
     105             :                 double fViewTime,
     106             :                 const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& rExtendedParameters);
     107             : 
     108             :             /** Constructor: Create a ViewInformation3D
     109             : 
     110             :                 @param rViewParameters
     111             :                 A sequence of property values which allows holding any combination of local and various
     112             :                 other parameters. This constructor is feeded completely with a sequence of PropertyValues
     113             :                 which will be parsed to be able to offer the most used ones in a convenient way.
     114             :             */
     115             :             explicit ViewInformation3D(const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& rViewParameters);
     116             : 
     117             :             /// default (empty) constructor
     118             :             ViewInformation3D();
     119             : 
     120             :             /// copy constructor
     121             :             ViewInformation3D(const ViewInformation3D& rCandidate);
     122             : 
     123             :             /// destructor
     124             :             ~ViewInformation3D();
     125             : 
     126             :             // checks if the incarnation is default constructed
     127             :             bool isDefault() const;
     128             : 
     129             :             /// assignment operator
     130             :             ViewInformation3D& operator=(const ViewInformation3D& rCandidate);
     131             : 
     132             :             /// compare operators
     133             :             bool operator==(const ViewInformation3D& rCandidate) const;
     134           0 :             bool operator!=(const ViewInformation3D& rCandidate) const { return !operator==(rCandidate); }
     135             : 
     136             :             /// data access
     137             :             const basegfx::B3DHomMatrix& getObjectTransformation() const;
     138             :             const basegfx::B3DHomMatrix& getOrientation() const;
     139             :             const basegfx::B3DHomMatrix& getProjection() const;
     140             :             const basegfx::B3DHomMatrix& getDeviceToView() const;
     141             :             double getViewTime() const;
     142             : 
     143             :             /// for convenience, the linear combination of the above four transformations is offered
     144             :             const basegfx::B3DHomMatrix& getObjectToView() const;
     145             : 
     146             :             /** Get the uno::Sequence< beans::PropertyValue > which contains all ViewInformation
     147             : 
     148             :                 Use this call if You need to extract all contained ViewInformation. The ones
     149             :                 directly supported for convenience will be added to the ones only available
     150             :                 as PropertyValues. This set completely describes this ViewInformation3D and
     151             :                 can be used for complete information transport over UNO API.
     152             :             */
     153             :             const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& getViewInformationSequence() const;
     154             : 
     155             :             /** Get the uno::Sequence< beans::PropertyValue > which contains only ViewInformation
     156             :                 not offered directly
     157             : 
     158             :                 Use this call if You only need ViewInformation which is not offered conveniently,
     159             :                 but only exists as PropertyValue. This is e.g. used to create partially updated
     160             :                 incarnations of ViewInformation3D without losing the only with PropertyValues
     161             :                 defined data. It does not contain a complete description.
     162             :             */
     163             :             const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& getExtendedInformationSequence() const;
     164             :         };
     165             :     } // end of namespace geometry
     166             : } // end of namespace drawinglayer
     167             : 
     168             : 
     169             : 
     170             : #endif //INCLUDED_DRAWINGLAYER_GEOMETRY_VIEWINFORMATION3D_HXX
     171             : 
     172             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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