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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 52 : 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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