Merge pull request GPSBabel#35 from tsteven4/master

eliminate some thrashing between QStrings and char strings in trackfi…

testo.d/track.test

@@ -7,6 +7,9 @@ rm -f ${TMPDIR}/trackfilter*
 gpsbabel -t -i gpx -f ${REFERENCE}/track/trackfilter.gpx -x track,pack,split,title="LOG-%Y%m%d" -o gpx -F ${TMPDIR}/trackfilter.gpx
 compare ${REFERENCE}/track/trackfilter.gpx ${TMPDIR}/trackfilter.gpx
 
+gpsbabel -t -i gpx -f ${REFERENCE}/track/trackfilter.gpx -x track,pack,split,title="LOG" -o gpx -F ${TMPDIR}/trackfilter1.gpx
+compare ${REFERENCE}/track/trackfilter.gpx ${TMPDIR}/trackfilter1.gpx
+
 gpsbabel -t -i gpx -f ${REFERENCE}/track/trackfilter.gpx -x track,pack,split,sdistance=0.1k  -o gpx -F ${TMPDIR}/trackfilter2.gpx
 compare ${REFERENCE}/track/trackfilter-sdistance.gpx ${TMPDIR}/trackfilter2.gpx
 

trackfilter.cc

@@ -371,30 +371,32 @@ trackfilter_fill_track_list_cb(const route_head* track) 	/* callback for track_d
 static void
 trackfilter_split_init_rte_name(route_head* track, const QDateTime dt)
 {
-  char tbuff[128];
-  struct tm tm;
+  QString datetimestring;
 
-  time_t time = dt.toUTC().toTime_t();
-  tm = *gmtime(&time);
-
-  (opt_interval != 0) ?
-  strftime(tbuff, sizeof(tbuff), "%Y%m%d%H%M%S", &tm) :
-  strftime(tbuff, sizeof(tbuff), "%Y%m%d", &tm);
+  if (opt_interval != 0) {
+    datetimestring = dt.toUTC().toString("yyyyMMddhhmmss");
+  } else {
+    datetimestring = dt.toUTC().toString("yyyyMMdd");
+  }
 
-  // TODO: this should be q QString.
-  char buff[128];
   if ((opt_title != NULL) && (strlen(opt_title) > 0)) {
     if (strchr(opt_title, '%') != NULL) {
+      // Uggh.  strftime format exposed to user.
+      char buff[128];
+
+      time_t time = dt.toUTC().toTime_t();
+      struct tm tm = *gmtime(&time);
+
       strftime(buff, sizeof(buff), opt_title, &tm);
+      track->rte_name = buff;
     } else {
-      snprintf(buff, sizeof(buff), "%s-%s", opt_title, tbuff);
+      track->rte_name = QString("%1-%2").arg(opt_title).arg(datetimestring);
     }
   } else if (!track->rte_name.isEmpty()) {
-    snprintf(buff, sizeof(buff) - 1, "%s-%s", CSTRc(track->rte_name), tbuff);
+    track->rte_name = QString("%1-%2").arg(track->rte_name).arg(datetimestring);
   } else {
-    strncpy(buff, tbuff, sizeof(buff));
+    track->rte_name = datetimestring;
   }
-  track->rte_name = buff;
 }
 
 static void
@@ -954,7 +956,7 @@ trackfilter_seg2trk(void)
         dest->rte_num = src->rte_num;
         /* name in the form TRACKNAME #n */
         if (!src->rte_name.isEmpty()) {
-          dest->rte_name = QString().sprintf("%s #%d", CSTRc(src->rte_name), ++trk_seg_num);
+          dest->rte_name = QString("%1 #%2").arg(src->rte_name).arg(++trk_seg_num);
         }
 
         /* Insert after original track or after last newly