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32 
33 /*!
34   \class SoMFVec2f SoMFVec2f.h Inventor/fields/SoMFVec2f.h
35   \brief The SoMFVec2f class is a container for SbVec2f vectors.
36 
37   \ingroup fields
38 
39   This field is used where nodes, engines or other field containers
40   needs to store an array of vectors with two elements.
41 
42   This field supports application data sharing through a
43   setValuesPointer() method. See SoMField documentation for
44   information on how to use this function.
45 
46   \sa SbVec2f, SoSFVec2f
47 */
48 
49 // *************************************************************************
50 
51 #include <Inventor/fields/SoMFVec2f.h>
52 
53 #include <cassert>
54 
55 #include <Inventor/SoInput.h>
56 #include <Inventor/errors/SoDebugError.h>
57 
58 #include "fields/SoSubFieldP.h"
59 #include "fields/shared.h"
60 
61 // *************************************************************************
62 
63 SO_MFIELD_SOURCE(SoMFVec2f, SbVec2f, const SbVec2f &);
64 
65 SO_MFIELD_SETVALUESPOINTER_SOURCE(SoMFVec2f, SbVec2f, SbVec2f);
66 SO_MFIELD_SETVALUESPOINTER_SOURCE(SoMFVec2f, SbVec2f, float);
67 
68 // *************************************************************************
69 
70 // Override from parent class.
71 void
initClass(void)72 SoMFVec2f::initClass(void)
73 {
74   SO_MFIELD_INTERNAL_INIT_CLASS(SoMFVec2f);
75 }
76 
77 // *************************************************************************
78 
79 // No need to document readValue() and writeValue() here, as the
80 // necessary information is provided by the documentation of the
81 // parent classes.
82 #ifndef DOXYGEN_SKIP_THIS
83 
84 SbBool
read1Value(SoInput * in,int idx)85 SoMFVec2f::read1Value(SoInput * in, int idx)
86 {
87   assert(idx < this->maxNum);
88   return
89     in->read(this->values[idx][0]) &&
90     in->read(this->values[idx][1]);
91 }
92 
93 void
write1Value(SoOutput * out,int idx) const94 SoMFVec2f::write1Value(SoOutput * out, int idx) const
95 {
96   sosfvec2f_write_value(out, (*this)[idx]);
97 }
98 
99 #endif // DOXYGEN_SKIP_THIS
100 
101 // *************************************************************************
102 
103 /*!
104   Set \a num vector array elements from \a xy, starting at index
105   \a start.
106 */
107 void
setValues(int start,int numarg,const float xy[][2])108 SoMFVec2f::setValues(int start, int numarg, const float xy[][2])
109 {
110   if (start+numarg > this->maxNum) this->allocValues(start+numarg);
111   else if (start+numarg > this->num) this->num = start+numarg;
112 
113   for(int i=0; i < numarg; i++) this->values[start+i] = SbVec2f(xy[i]);
114   this->valueChanged();
115 }
116 
117 /*!
118   Set the vector at \a idx.
119 */
120 void
set1Value(int idx,float x,float y)121 SoMFVec2f::set1Value(int idx, float x, float y)
122 {
123   this->set1Value(idx, SbVec2f(x, y));
124 }
125 
126 /*!
127   Set the vector at \a idx.
128 */
129 void
set1Value(int idx,const float xy[2])130 SoMFVec2f::set1Value(int idx, const float xy[2])
131 {
132   this->set1Value(idx, SbVec2f(xy));
133 }
134 
135 /*!
136   Set this field to contain a single vector with the given
137   element values.
138 */
139 void
setValue(float x,float y)140 SoMFVec2f::setValue(float x, float y)
141 {
142   this->setValue(SbVec2f(x, y));
143 }
144 
145 /*!
146   Set this field to contain a single vector with the given
147   element values.
148 */
149 void
setValue(const float xy[2])150 SoMFVec2f::setValue(const float xy[2])
151 {
152   if (xy == NULL) this->setNum(0);
153   else this->setValue(SbVec2f(xy));
154 }
155 
156 // *************************************************************************
157 
158 #ifdef COIN_TEST_SUITE
159 
BOOST_AUTO_TEST_CASE(initialized)160 BOOST_AUTO_TEST_CASE(initialized)
161 {
162   SoMFVec2f field;
163   BOOST_CHECK_MESSAGE(field.getTypeId() != SoType::badType(),
164                       "missing class initialization");
165   BOOST_CHECK_EQUAL(field.getNum(), 0);
166 }
167 
168 #endif // COIN_TEST_SUITE
169