1 #ifndef COIN_SOGLVIEWINGMATRIXELEMENT_H
2 #define COIN_SOGLVIEWINGMATRIXELEMENT_H
3 
4 /**************************************************************************\
5  * Copyright (c) Kongsberg Oil & Gas Technologies AS
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions are
10  * met:
11  *
12  * Redistributions of source code must retain the above copyright notice,
13  * this list of conditions and the following disclaimer.
14  *
15  * Redistributions in binary form must reproduce the above copyright
16  * notice, this list of conditions and the following disclaimer in the
17  * documentation and/or other materials provided with the distribution.
18  *
19  * Neither the name of the copyright holder nor the names of its
20  * contributors may be used to endorse or promote products derived from
21  * this software without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27  * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
29  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
30  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
33  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 \**************************************************************************/
35 
36 #include <Inventor/elements/SoViewingMatrixElement.h>
37 
38 class COIN_DLL_API SoGLViewingMatrixElement : public SoViewingMatrixElement {
39   typedef SoViewingMatrixElement inherited;
40 
41   SO_ELEMENT_HEADER(SoGLViewingMatrixElement);
42 public:
43   static void initClass(void);
44 protected:
45   virtual ~SoGLViewingMatrixElement();
46 
47 public:
48   virtual void init(SoState * state);
49 
50   virtual void push(SoState * state);
51   virtual void pop(SoState * state,
52                    const SoElement * prevTopElement);
53 
54   static SbUniqueId getNodeId(SoState * const state);
55   static SbMatrix getResetMatrix(SoState * state);
56 
57 protected:
58   virtual void setElt(const SbMatrix & matrix);
59 
60 private:
61   SoState * state;
62   SbMatrix modelmatrix;
63   SbBool mmidentity;
64   void updategl(void);
65 };
66 
67 #endif // !COIN_SOGLVIEWINGMATRIXELEMENT_H
68