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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
#include <math.h>
#include <stdio.h>
#include <glib.h>
#include "point.h"
#include "coord.h"
#include "graphics.h"
#include "transform.h"
#include "route.h"
#include "vehicle.h"
#include "navit.h"
#include "compass.h"
#if 0
struct compass {
struct graphics *gr;
struct graphics_gc *bg;
struct graphics_gc *white;
struct graphics_gc *green;
struct graphics_font *font;
};
static void
transform_rotate(struct point *center, int angle, struct point *p, int count)
{
int i,x,y;
double dx,dy;
for (i = 0 ; i < count ; i++)
{
dx=sin(M_PI*angle/180.0);
dy=cos(M_PI*angle/180.0);
x=dy*p->x-dx*p->y;
y=dx*p->x+dy*p->y;
p->x=center->x+x;
p->y=center->y+y;
p++;
}
}
static void
handle(struct graphics *gr, struct graphics_gc *gc, struct point *p, int r, int dir)
{
struct point ph[3];
int l=r*0.4;
ph[0].x=0;
ph[0].y=r;
ph[1].x=0;
ph[1].y=-r;
transform_rotate(p, dir, ph, 2);
gr->draw_lines(gr, gc, ph, 2);
ph[0].x=-l;
ph[0].y=-r+l;
ph[1].x=0;
ph[1].y=-r;
ph[2].x=l;
ph[2].y=-r+l;
transform_rotate(p, dir, ph, 3);
gr->draw_lines(gr, gc, ph, 3);
}
void
compass_draw(struct compass *comp, struct container *co)
{
struct point p;
struct coord *pos, *dest;
double *vehicle_dir,dir,distance;
int dx,dy;
char buffer[16];
if (! co->vehicle)
return;
vehicle_dir=vehicle_dir_get(co->vehicle);
comp->gr->draw_mode(comp->gr, draw_mode_begin);
p.x=0;
p.y=0;
comp->gr->draw_rectangle(comp->gr, comp->bg, &p, 60, 80);
p.x=30;
p.y=30;
comp->gr->draw_circle(comp->gr, comp->white, &p, 50);
if (co->flags->orient_north)
handle(comp->gr,comp->white, &p, 20,0);
else
handle(comp->gr, comp->white, &p, 20, -*vehicle_dir);
#if 0 /* FIXME */
dest=route_get_destination(co->route);
if (dest) {
pos=vehicle_pos_get(co->vehicle);
dx=dest->x-pos->x;
dy=dest->y-pos->y;
dir=atan2(dx,dy)*180.0/M_PI;
#if 0
printf("dx %d dy %d dir=%f vehicle_dir=%f\n", dx, dy, dir, *vehicle_dir);
#endif
if (! co->flags->orient_north)
dir-=*vehicle_dir;
handle(comp->gr, comp->green, &p, 20, dir);
p.x=8;
p.y=72;
distance=transform_distance(pos, dest)/1000.0;
if (distance >= 100)
sprintf(buffer,"%.0f km", distance);
else if (distance >= 10)
sprintf(buffer,"%.1f km", distance);
else
sprintf(buffer,"%.2f km", distance);
comp->gr->draw_text(comp->gr, comp->green, NULL, comp->font, buffer, &p, 0x10000, 0);
}
#endif
comp->gr->draw_mode(comp->gr, draw_mode_end);
}
struct compass *
compass_new(struct container *co)
{
struct compass *this=g_new0(struct compass, 1);
struct point p;
p.x=10;
p.y=10;
this->gr=co->gra->overlay_new(co->gra, &p, 60, 80);
this->bg=this->gr->gc_new(this->gr);
this->gr->gc_set_foreground(this->bg, 0, 0, 0);
this->white=this->gr->gc_new(this->gr);
this->gr->gc_set_foreground(this->white, 0xffff, 0xffff, 0xffff);
this->gr->gc_set_linewidth(this->white, 2);
this->green=this->gr->gc_new(this->gr);
this->gr->gc_set_foreground(this->green, 0x0, 0xffff, 0x0);
this->gr->gc_set_linewidth(this->green, 2);
this->font=this->gr->font_new(this->gr, 200);
compass_draw(this, co);
return this;
}
#endif
|
