diff options
Diffstat (limited to 'gtk2_ardour/tempo_lines.cc')
| -rw-r--r-- | gtk2_ardour/tempo_lines.cc | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/gtk2_ardour/tempo_lines.cc b/gtk2_ardour/tempo_lines.cc index cab185026f..1ee73c7280 100644 --- a/gtk2_ardour/tempo_lines.cc +++ b/gtk2_ardour/tempo_lines.cc @@ -71,9 +71,11 @@ TempoLines::hide () } void -TempoLines::draw (ARDOUR::TempoMap::BBTPointList& points, double frames_per_unit) +TempoLines::draw (const ARDOUR::TempoMap::BBTPointList::const_iterator& begin, + const ARDOUR::TempoMap::BBTPointList::const_iterator& end, + double frames_per_unit) { - ARDOUR::TempoMap::BBTPointList::iterator i; + ARDOUR::TempoMap::BBTPointList::const_iterator i; ArdourCanvas::SimpleLine *line = NULL; gdouble xpos; double who_cares; @@ -83,16 +85,16 @@ TempoLines::draw (ARDOUR::TempoMap::BBTPointList& points, double frames_per_unit uint32_t bars = 0; uint32_t color; - const size_t needed = points.size(); + const size_t needed = distance (begin, end); _canvas.get_scroll_region (x1, y1, x2, who_cares); /* get the first bar spacing */ - i = points.end(); + i = end; i--; - bars = (*i).bar - (*points.begin()).bar; - beats = points.size() - bars; + bars = (*i).bar - (*begin).bar; + beats = distance (begin, end) - bars; beat_density = (beats * 10.0f) / _canvas.get_width (); @@ -105,7 +107,7 @@ TempoLines::draw (ARDOUR::TempoMap::BBTPointList& points, double frames_per_unit xpos = rint(((framepos_t)(*i).frame) / (double)frames_per_unit); const double needed_right = xpos; - i = points.begin(); + i = begin; xpos = rint(((framepos_t)(*i).frame) / (double)frames_per_unit); const double needed_left = xpos; @@ -129,7 +131,7 @@ TempoLines::draw (ARDOUR::TempoMap::BBTPointList& points, double frames_per_unit bool inserted_last_time = true; bool invalidated = false; - for (i = points.begin(); i != points.end(); ++i) { + for (i = begin; i != end; ++i) { if ((*i).type == ARDOUR::TempoMap::Bar) { color = ARDOUR_UI::config()->canvasvar_MeasureLineBar.get(); |