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fix vertical canvas scrolling 

* properly account for hidden tracks
 * allow to scroll to last track
This commit is contained in:
Robin Gareus 2014-10-29 06:35:55 +01:00
parent 300d765f17
commit cca7ddf046
1 changed files with 3 additions and 6 deletions
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9
gtk2_ardour/editor_ops.cc
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@ -1367,7 +1367,7 @@ Editor::scroll_tracks_up_line ()
bool
Editor::scroll_down_one_track ()
{
TrackViewList::reverse_iterator next = track_views.rbegin();
TrackViewList::reverse_iterator next = track_views.rend();
std::pair<TimeAxisView*,double> res;
const double top_of_trackviews = vertical_adjustment.get_value();
@ -1376,10 +1376,6 @@ Editor::scroll_down_one_track ()
continue;
}
next = t;
if (next != track_views.rbegin()) {
--next; // moves "next" towards the lower/later tracks since it is a reverse iterator
}
/* If this is the upper-most visible trackview, we want to display
the one above it (next)
@ -1390,11 +1386,12 @@ Editor::scroll_down_one_track ()
if (res.first) {
break;
}
next = t;
}
/* move to the track below the first one that covers the */
if (next != track_views.rbegin()) {
if (next != track_views.rend()) {
ensure_time_axis_view_is_visible (**next, true);
return true;
}