ardour/livetrax
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Helper function to format sample-count as duration

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This commit is contained in:
Robin Gareus 2019-09-29 01:24:23 +02:00
parent 1c680f116a
commit b3a20c7626
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
2 changed files with 38 additions and 0 deletions
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37
gtk2_ardour/utils.cc
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@ -764,6 +764,43 @@ ARDOUR_UI_UTILS::rate_as_string (float r)
return buf;
}
string
ARDOUR_UI_UTILS::samples_as_time_string (samplecnt_t s, float rate, bool show_samples)
{
char buf[32];
if (rate <= 0) {
snprintf (buf, sizeof (buf), "--");
} else if (s == 0) {
snprintf (buf, sizeof (buf), "0");
} else if (s < 1000 && show_samples) {
/* 0 .. 999 spl */
snprintf (buf, sizeof (buf), "%ld spl", s);
} else if (s < (rate / 1000.f)) {
/* 0 .. 999 usec */
snprintf (buf, sizeof (buf), "%.0f \u00B5s", s * 1e+6f / rate);
} else if (s < (rate / 100.f)) {
/* 1.000 .. 9.999 ms */
snprintf (buf, sizeof (buf), "%.3f ms", s * 1e+3f / rate);
} else if (s < (rate / 10.f)) {
/* 1.00 .. 99.99 ms */
snprintf (buf, sizeof (buf), "%.2f ms", s * 1e+3f / rate);
} else if (s < rate) {
/* 100.0 .. 999.9 ms */
snprintf (buf, sizeof (buf), "%.1f ms", s * 1e+3f / rate);
} else if (s < rate * 10.f) {
/* 1.000 s .. 9.999 s */
snprintf (buf, sizeof (buf), "%.3f s", s / rate);
} else if (s < rate * 90.f) {
/* 10.00 s .. 89.99 s */
snprintf (buf, sizeof (buf), "%.2f s", s / rate);
} else {
/* 1m30.0 ... */
snprintf (buf, sizeof (buf), "'%.0fm%.1f", s / (60.f * rate), fmodf (s / rate, 60));
}
buf[31] = '\0';
return buf;
}
bool
ARDOUR_UI_UTILS::windows_overlap (Gtk::Window *a, Gtk::Window *b)
{

1
gtk2_ardour/utils.h
View File

@ -101,6 +101,7 @@ std::string escape_underscores (std::string const &);
Gdk::Color unique_random_color (std::list<Gdk::Color> &);
std::string rate_as_string (float r);
std::string samples_as_time_string (ARDOUR::samplecnt_t s, float r, bool show_samples = false);
bool windows_overlap (Gtk::Window *a, Gtk::Window *b);