1 // This is core/vgl/io/vgl_io_box_2d.hxx
2 #ifndef vgl_io_box_2d_hxx_
3 #define vgl_io_box_2d_hxx_
4 //:
5 // \file
6
7 #include <iostream>
8 #include "vgl_io_box_2d.h"
9 #include <vsl/vsl_binary_io.h>
10
11 //============================================================================
12 //: Binary save self to stream.
13 template<class T>
vsl_b_write(vsl_b_ostream & os,const vgl_box_2d<T> & p)14 void vsl_b_write(vsl_b_ostream &os, const vgl_box_2d<T> & p)
15 {
16 constexpr short io_version_no = 1;
17 vsl_b_write(os, io_version_no);
18 vsl_b_write(os, p.min_x());
19 vsl_b_write(os, p.min_y());
20 vsl_b_write(os, p.max_x());
21 vsl_b_write(os, p.max_y());
22 }
23
24 //============================================================================
25 //: Binary load self from stream.
26 template<class T>
vsl_b_read(vsl_b_istream & is,vgl_box_2d<T> & p)27 void vsl_b_read(vsl_b_istream &is, vgl_box_2d<T> & p)
28 {
29 if (!is) return;
30
31 short v;
32 T min_pos[2];
33 T max_pos[2];
34 vsl_b_read(is, v);
35 switch (v)
36 {
37 case 1:
38 vsl_b_read(is, min_pos[0]);
39 vsl_b_read(is, min_pos[1]);
40 vsl_b_read(is, max_pos[0]);
41 vsl_b_read(is, max_pos[1]);
42
43 p.set_min_x(min_pos[0]);
44 p.set_min_y(min_pos[1]);
45 p.set_max_x(max_pos[0]);
46 p.set_max_y(max_pos[1]);
47 break;
48
49 default:
50 std::cerr << "I/O ERROR: vsl_b_read(vsl_b_istream&, vgl_box_2d<T>&)\n"
51 << " Unknown version number "<< v << '\n';
52 is.is().clear(std::ios::badbit); // Set an unrecoverable IO error on stream
53 return;
54 }
55 }
56
57 //============================================================================
58 //: Output a human readable summary to the stream
59 template<class T>
vsl_print_summary(std::ostream & os,const vgl_box_2d<T> & p)60 void vsl_print_summary(std::ostream& os,const vgl_box_2d<T> & p)
61 {
62 if (p.is_empty())
63 os<<"Empty 2d box\n";
64 else
65 os<<"2d box with opposite corners at (" <<p.min_x() << ',' << p.min_y()
66 <<") and (" << p.max_x() << ',' << p.max_y() << ")\n";
67 }
68
69 #define VGL_IO_BOX_2D_INSTANTIATE(T) \
70 template void vsl_print_summary(std::ostream &, const vgl_box_2d<T > &); \
71 template void vsl_b_read(vsl_b_istream &, vgl_box_2d<T > &); \
72 template void vsl_b_write(vsl_b_ostream &, const vgl_box_2d<T > &)
73
74 #endif // vgl_io_box_2d_hxx_
75