diff options
author | Robin Gareus <robin@gareus.org> | 2019-09-29 01:24:23 +0200 |
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committer | Robin Gareus <robin@gareus.org> | 2019-09-29 02:44:32 +0200 |
commit | b3a20c762634517ad1160208fcc06ed1e3a4b2b4 (patch) | |
tree | ea0e0a75490ed1d07a87fd17650ff82e902764f2 /gtk2_ardour/utils.cc | |
parent | 1c680f116ad3de095496795b160b1c77e37e312c (diff) |
Helper function to format sample-count as duration
Diffstat (limited to 'gtk2_ardour/utils.cc')
-rw-r--r-- | gtk2_ardour/utils.cc | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/gtk2_ardour/utils.cc b/gtk2_ardour/utils.cc index c5b40faf6d..7489b2e08b 100644 --- a/gtk2_ardour/utils.cc +++ b/gtk2_ardour/utils.cc @@ -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) { |