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32
33 /*!
34 \class SoGLProjectionMatrixElement Inventor/elements/SoGLProjectionMatrixElement.h
35 \brief The SoGLProjectionMatrixElement class is yet to be documented.
36
37 \ingroup elements
38
39 FIXME: write doc.
40 */
41
42 #include <Inventor/elements/SoGLProjectionMatrixElement.h>
43 #include "coindefs.h"
44
45
46 #ifdef HAVE_CONFIG_H
47 #include <config.h>
48 #endif // HAVE_CONFIG_H
49
50 #include <Inventor/system/gl.h>
51
52 #include <cassert>
53
54 SO_ELEMENT_SOURCE(SoGLProjectionMatrixElement);
55
56 /*!
57 This static method initializes static data for the
58 SoGLProjectionMatrixElement class.
59 */
60
61 void
initClass(void)62 SoGLProjectionMatrixElement::initClass(void)
63 {
64 SO_ELEMENT_INIT_CLASS(SoGLProjectionMatrixElement, inherited);
65 }
66
67 /*!
68 The destructor.
69 */
70
~SoGLProjectionMatrixElement(void)71 SoGLProjectionMatrixElement::~SoGLProjectionMatrixElement(void)
72 {
73 }
74
75 //! FIXME: write doc.
76
77 void
pop(SoState * COIN_UNUSED_ARG (state),const SoElement * prevTopElement)78 SoGLProjectionMatrixElement::pop(SoState * COIN_UNUSED_ARG(state),
79 const SoElement * prevTopElement)
80 {
81 this->capture(state);
82 this->updategl();
83 }
84
85 //! FIXME: write doc.
86
87 void
setElt(const SbMatrix & matrix)88 SoGLProjectionMatrixElement::setElt(const SbMatrix & matrix)
89 {
90 inherited::setElt(matrix);
91 this->updategl();
92 }
93
94 //! FIXME: write doc.
95
96 void
updategl(void)97 SoGLProjectionMatrixElement::updategl(void)
98 {
99 #if 0 // debug
100 SoDebugError::postInfo("SoGLProjectionMatrixElement::updategl", "");
101 #endif // debug
102 glMatrixMode(GL_PROJECTION);
103 glLoadMatrixf((float*)this->projectionMatrix);
104 glMatrixMode(GL_MODELVIEW);
105 }
106