1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
#define GL_GLEXT_PROTOTYPES
#include "selection_from_db.h"
#include "../model/geometry/map_geometry.h"
#include "../view/exp004state0.h"
#include "../util/check_error.h"
#include <GL/glut.h>
#include "sqlca.h"
extern struct sqlca sqlca;
/*
* A simple alias to make the code more readable.
*/
#define S exp004state0
void
selection_from_db (void)
{
/*
* db2dclgn -d exp004 -t vis_sel_set
*/
EXEC SQL BEGIN DECLARE SECTION;
EXEC SQL INCLUDE 'controller/vis_sel_set.h';
EXEC SQL END DECLARE SECTION;
EXEC SQL DECLARE c3 CURSOR FOR
SELECT * FROM vis_sel_set ORDER BY title, id DESC;
EXEC SQL OPEN c3;
check_error (__FILE__, __LINE__);
/*
* This loop currently assumes only one set in the table and does
* not use the title assigned to that set. This should be improved
* to allow the user to manage multiple sets by name.
*/
EXEC SQL FETCH c3 INTO:vis_sel_set;
while (sqlca.sqlcode != 100)
{
int i = vis_sel_set.id - 1;
/*
* Loaded sets do not automatically become part of the current
* selection, however they could be added to it. This is an
* issue to work out in the interaction.
*/
// S.selection.set[i] = true;
S.base_colors_data[i][0] = vis_sel_set.r;
S.base_colors_data[i][1] = vis_sel_set.g;
S.base_colors_data[i][2] = vis_sel_set.b;
S.base_colors_data[i][3] = 0.6;
EXEC SQL FETCH c3 INTO:vis_sel_set;
}
EXEC SQL CLOSE c3;
check_error (__FILE__, __LINE__);
EXEC SQL COMMIT;
check_error (__FILE__, __LINE__);
/*
* Update the graphics memory.
*/
glBindBuffer (GL_ARRAY_BUFFER, S.buffers[BASE_COLORS]);
glColorPointer (4, GL_FLOAT, 0, 0);
glBufferData (GL_ARRAY_BUFFER,
sizeof (S.base_colors_data), S.base_colors_data,
GL_STATIC_DRAW);
/*
* Rebuild the display list.
*/
map_geometry ();
glutPostRedisplay ();
return;
}
|
