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view/time.c autoscroll and zoom

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This commit is contained in:
Cedric Roux
2016-05-19 17:37:28 +02:00
parent 34e3945249
commit 392a818b7b
1 changed files with 31 additions and 2 deletions
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common/utils/T/tracer/view/time.c
+31 -2
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@@ -28,6 +28,8 @@ struct time {
int psize;
double pixel_length; /* unit: nanosecond (maximum 1 hour/pixel) */
struct timespec latest_time;
struct timespec start_time;
int autoscroll;
};
/* TODO: put that function somewhere else (utils.c) */
@@ -119,8 +121,15 @@ static void *time_thread(void *_this)
/* use rounded pixel_length */
pixel_length = this->pixel_length;
tnext = time_add(this->latest_time,(struct timespec){tv_sec:0,tv_nsec:1});
tstart = time_sub(tnext, nano_to_time(pixel_length * width));
if (this->autoscroll) {
tnext = time_add(this->latest_time,
(struct timespec){tv_sec:0,tv_nsec:1});
tstart = time_sub(tnext, nano_to_time(pixel_length * width));
this->start_time = tstart;
} else {
tstart = this->start_time;
tnext = time_add(tstart, nano_to_time(pixel_length * width));
}
for (l = 0; l < this->psize; l++) {
for (i = 0; i < width; i++) {
@@ -148,9 +157,12 @@ static void scroll(void *private, gui *g,
char *notification, widget *w, void *notification_data)
{
struct time *this = private;
int *d = notification_data;
int x = d[0];
double mul = 1.2;
double pixel_length;
int64_t old_px_len_rounded;
struct timespec t;
if (pthread_mutex_lock(&this->lock)) abort();
@@ -176,9 +188,23 @@ again:
(int64_t)pixel_length == old_px_len_rounded)
goto again;
t = time_add(this->start_time, nano_to_time(x * old_px_len_rounded));
this->start_time = time_sub(t, nano_to_time(x * (int64_t)pixel_length));
if (pthread_mutex_unlock(&this->lock)) abort();
}
static void click(void *private, gui *g,
char *notification, widget *w, void *notification_data)
{
struct time *this = private;
int *d = notification_data;
int button = *d;
if (button == 1) this->autoscroll = 0;
if (button == 3) this->autoscroll = 1;
}
view *new_view_time(int number_of_seconds, float refresh_rate,
gui *g, widget *w)
{
@@ -192,11 +218,14 @@ view *new_view_time(int number_of_seconds, float refresh_rate,
ret->p = NULL;
ret->psize = 0;
ret->autoscroll = 1;
/* default pixel length: 10ms */
ret->pixel_length = 10 * 1000000;
register_notifier(g, "scrollup", w, scroll, ret);
register_notifier(g, "scrolldown", w, scroll, ret);
register_notifier(g, "click", w, click, ret);
if (pthread_mutex_init(&ret->lock, NULL)) abort();