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*the rocket lands; a purple lobster with brown spots exits*

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XANTRONIX Development 2019-06-06 13:57:26 -04:00
parent 0eef3f80fd
commit 185809113e
1 changed files with 174 additions and 20 deletions
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194
examples/cluster.c
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@ -3,14 +3,6 @@
#include <string.h> #include <string.h>
#include <math.h> #include <math.h>
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <X11/Xutil.h>
#include <X11/extensions/Xdbe.h>
#include <cairo.h>
#include <cairo-xlib.h>
#include <hexagram/can.h> #include <hexagram/can.h>
#include <hexagram/window.h> #include <hexagram/window.h>
@ -116,16 +108,110 @@ static void draw_speedometer(cairo_t *cr,
double x, double x,
double y, double y,
double r) { double r) {
int i;
cairo_select_font_face(cr, "Helvetica",
CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_NORMAL);
cairo_set_font_size(cr, r * 0.125);
cairo_set_source_rgb(cr, 1, 1, 1);
cairo_arc(cr, x, y, r, 0, 2*M_PI); cairo_arc(cr, x, y, r, 0, 2*M_PI);
cairo_stroke(cr); cairo_stroke(cr);
/*
* Draw face numbers
*/
for (i=0; i<=180; i+=20) {
char text[5];
snprintf(text, 4, "%02d", i);
draw_face_number(cr, x, y,
0.85 * r,
232 * (M_PI/180),
488 * (M_PI/180),
i / 180.0,
text);
}
}
static void draw_speedometer_needle(cairo_t *cr,
double x,
double y,
double r,
double kph) {
if (kph > 290) {
kph = 290;
}
/*
* Draw a tiny boi circle
*/
cairo_set_source_rgb(cr, 1, 1, 1);
cairo_arc(cr, x, y, 0.08 * r, 0, 2*M_PI);
cairo_fill(cr);
draw_needle(cr, x, y, 0.77 * r,
232 * (M_PI/180),
488 * (M_PI/180),
kph / 290);
} }
static void draw_thermometer(cairo_t *cr, static void draw_thermometer(cairo_t *cr,
double x, double x,
double y, double y,
double r) { double r) {
int i;
cairo_select_font_face(cr, "Helvetica",
CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_NORMAL);
cairo_set_font_size(cr, r * 0.15);
cairo_set_source_rgb(cr, 1, 1, 1);
cairo_arc(cr, x, y, r, 0, 2*M_PI); cairo_arc(cr, x, y, r, 0, 2*M_PI);
cairo_stroke(cr); cairo_stroke(cr);
/*
* Draw face numbers
*/
for (i=120; i<=260; i+=70) {
char text[5];
snprintf(text, 4, "%02d", i);
draw_face_number(cr, x, y,
0.75 * r,
300 * (M_PI/180),
420 * (M_PI/180),
(i - 120.0) / 140.0,
text);
}
}
static void draw_thermometer_needle(cairo_t *cr,
double x,
double y,
double r,
double temp) {
if (temp > 260) {
temp = 260;
}
/*
* Draw a tiny boi circle
*/
cairo_set_source_rgb(cr, 1, 1, 1);
cairo_arc(cr, x, y, 0.08 * r, 0, 2*M_PI);
cairo_fill(cr);
draw_needle(cr, x, y, 0.77 * r,
300 * (M_PI/180),
420 * (M_PI/180),
temp / 260);
} }
static void draw_fuel_gauge(cairo_t *cr, static void draw_fuel_gauge(cairo_t *cr,
@ -136,6 +222,28 @@ static void draw_fuel_gauge(cairo_t *cr,
cairo_stroke(cr); cairo_stroke(cr);
} }
static void draw_fuel_gauge_needle(cairo_t *cr,
double x,
double y,
double r,
double level) {
if (level > 1.0) {
level = 1.0;
}
/*
* Draw a tiny boi circle
*/
cairo_set_source_rgb(cr, 1, 1, 1);
cairo_arc(cr, x, y, 0.08 * r, 0, 2*M_PI);
cairo_fill(cr);
draw_needle(cr, x, y, 0.77 * r,
300 * (M_PI/180),
420 * (M_PI/180),
level / 1.0);
}
static void draw_mfd(cairo_t *cr, static void draw_mfd(cairo_t *cr,
double x, double x,
double y, double y,
@ -200,21 +308,62 @@ static void update_gauge_cluster(cairo_t *cr,
double y, double y,
double width, double width,
double height) { double height) {
static double rpm = 0;
static double kph = 0;
static double temp = 0;
static double level = 0;
switch (frame->can_id) { switch (frame->can_id) {
case 0x280: { case 0x280: {
static double rpm = 0;
rpm = 0.25 * (double)(frame->data[2] | (frame->data[3] << 8)); rpm = 0.25 * (double)(frame->data[2] | (frame->data[3] << 8));
draw_tachometer_needle(cr, break;
x + width * 0.2, }
y + height * 0.5,
height * 0.4, case 0x288: {
rpm); temp = (double)(frame->data[1] - 48 * 0.75);
break;
}
case 0x320: {
level = (double)(frame->data[2]);
break;
}
case 0x5a0: {
double rps = 0.001 * (double)((frame->data[1] >> 1)
| (frame->data[2] << 8));
kph = (2.032 * rps * 3600) / 1000.0;
break; break;
} }
} }
draw_tachometer_needle(cr, x + width * 0.2,
y + height * 0.5,
height * 0.4,
rpm);
draw_speedometer_needle(cr,
width * 0.8,
height * 0.5,
height * 0.4,
kph);
draw_thermometer_needle(cr,
width * 0.43,
height * 0.76,
height * 0.11,
temp);
draw_fuel_gauge_needle(cr,
width * 0.57,
height * 0.76,
height * 0.11,
0.5);
} }
int main(int argc, char **argv) { int main(int argc, char **argv) {
@ -226,7 +375,7 @@ int main(int argc, char **argv) {
int fd, fd2, int fd, fd2,
width = 1024, width = 1024,
height = 480; height = 480;
cairo_t *fg, *bg; cairo_t *fg, *bg;
@ -296,12 +445,17 @@ int main(int argc, char **argv) {
hexagram_can_if_read(can_if, &frame); hexagram_can_if_read(can_if, &frame);
if (frame.can_id == 0x280) { switch (frame.can_id) {
hexagram_window_refresh_bg(window); case 0x280:
case 0x288:
case 0x320:
case 0x5a0: {
hexagram_window_refresh_bg(window);
update_gauge_cluster(fg, &frame, 0, 0, width, height); update_gauge_cluster(fg, &frame, 0, 0, width, height);
hexagram_window_swap_buffer(window); hexagram_window_swap_buffer(window);
}
} }
} }
} }