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particle/progress-bar: force-refresh realtime tags

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When we're tracking a realtime tag, calculate the time left until the
next segment in the progress bar will get filled, and schedule a force
refresh.
This commit is contained in:
Daniel Eklöf 2018-12-28 12:43:54 +01:00
parent 20b3299afd
commit adb70e9f35
1 changed files with 37 additions and 0 deletions
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37
particles/progress_bar.c
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@ -4,6 +4,10 @@
#include <string.h>
#include <assert.h>
#define LOG_MODULE "progress_bar"
#define LOG_ENABLE_DBG 1
#include "../log.h"
struct private {
char *tag;
int width;
@ -121,6 +125,39 @@ instantiate(const struct particle *particle, const struct tag_set *tags)
exposable->begin_expose = &begin_expose;
exposable->expose = &expose;
enum tag_realtime_unit rt = tag->realtime(tag);
if (rt == TAG_REALTIME_NONE)
return exposable;
else if (rt != TAG_REALTIME_SECONDS) {
LOG_WARN("unimplemented tag realtime unit: %d", rt);
return exposable;
}
#if 0
long units_per_segment = (max - min) / p->width;
long units_filled = fill_count * (max - min) / p->width;
long units_til_next_segment = units_per_segment - (value - units_filled);
LOG_DBG("tag: %s, value: %ld, "
"units-per-segment: %ld, units-filled: %ld, units-til-next: %ld",
tag->name(tag), value,
units_per_segment, units_filled, units_til_next_segment);
#else
double units_per_segment = (double)(max - min) / p->width;
double units_filled = fill_count * units_per_segment;
double units_til_next_segment = units_per_segment - ((double)value - units_filled);
LOG_DBG("tag: %s, value: %ld, "
"units-per-segment: %f, units-filled: %f, units-til-next: %f",
tag->name(tag), value,
units_per_segment, units_filled, units_til_next_segment);
#endif
if (!tag->refresh_in(tag, units_til_next_segment * 1000))
LOG_WARN("failed to schedule update of tag");
return exposable;
}