better formatting of event times

ChangeLog

@@ -1,3 +1,6 @@
+2024-09-08
+    * better formatting of event times in 'hh:mm:ss.zzz'
+
 2023-12-25
     * Release 1.4.0
 

src/sequenceitem.h

@@ -28,17 +28,14 @@ class SequenceItem
     SequenceItem(double seconds,
                  unsigned int ticks,
                  unsigned int track,
-                 drumstick::ALSA::SequencerEvent* ev):
-    m_seconds(seconds),
-    m_ticks(ticks),
-    m_track(track),
-    m_event(ev)
+                 drumstick::ALSA::SequencerEvent *ev)
+        : m_seconds(seconds)
+        , m_ticks(ticks)
+        , m_track(track)
+        , m_event(ev)
     {}
 
-    virtual ~SequenceItem()
-    {}
-
-    bool operator==(const SequenceItem& other) const;
+    bool operator==(const SequenceItem &other) const;
 
     double getSeconds() const { return m_seconds; }
     unsigned int  getTicks() const { return m_ticks; }

src/sequencemodel.cpp

@@ -1040,7 +1040,17 @@ SequenceModel::event_ticks(const SequencerEvent *ev) const
 QString
 SequenceModel::event_time(const SequenceItem& itm) const
 {
-    return QString::number(itm.getSeconds(), 'f', 4);
+    constexpr quint64 onehour = 60 * 60 * 1000;
+    constexpr quint64 oneminute = 60 * 1000;
+    auto ms = static_cast<quint64>(itm.getSeconds() * 1000);
+    QTime t = QTime::fromMSecsSinceStartOfDay(ms);
+    if (ms >= onehour) {
+        return t.toString("h:mm:ss.zzz");
+    } else if (ms >= oneminute) {
+        return t.toString("m:ss.zzz");
+    } else {
+        return t.toString("s.zzz");
+    }
 }
 
 QString