diff options
| author | Ben Loftis <ben@harrisonconsoles.com> | 2017-08-26 21:00:45 -0500 |
|---|---|---|
| committer | Ben Loftis <ben@harrisonconsoles.com> | 2017-08-26 22:44:58 -0500 |
| commit | 9b87279eca991043c347dfdfda71b4e063023aec (patch) | |
| tree | 6a7a81736be79802c2f65f0c90cdb2185aab745c /gtk2_ardour/editor_canvas.cc | |
| parent | e9f4c5fc1c9bfd5fa6d5abb88a5161630ad56ef0 (diff) | |
Editor zooming:
New function session_gui_extents() reports the extents of all playlists.
ToDo: include region playlists, when they become available.
also: slow-down autoscroll (ToDo: make a config variable for this)
Diffstat (limited to 'gtk2_ardour/editor_canvas.cc')
| -rw-r--r-- | gtk2_ardour/editor_canvas.cc | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/gtk2_ardour/editor_canvas.cc b/gtk2_ardour/editor_canvas.cc index 3ff0cf4c4a..43b97a36f7 100644 --- a/gtk2_ardour/editor_canvas.cc +++ b/gtk2_ardour/editor_canvas.cc @@ -581,6 +581,45 @@ Editor::autoscroll_active () const return autoscroll_connection.connected (); } +std::pair <framepos_t,framepos_t> +Editor::session_gui_extents () const +{ + framecnt_t session_extent_start = _session->current_start_frame(); + framecnt_t session_extent_end = _session->current_end_frame(); + + //calculate the extents of all regions in every playlist + //NOTE: we should listen to playlists, and cache these values so we don't calculate them every time. + { + boost::shared_ptr<RouteList> rl = _session->get_routes(); + for (RouteList::iterator r = rl->begin(); r != rl->end(); ++r) { + boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*r); + if (tr) { + boost::shared_ptr<Playlist> pl = tr->playlist(); + if ( pl && !pl->all_regions_empty() ) { + pair<framepos_t, framepos_t> e; + e = pl->get_extent(); + if (e.first < session_extent_start) { + session_extent_start = e.first; + } + if (e.second > session_extent_end) { + session_extent_end = e.second; + } + } + } + } + } + + //ToDo: also incorporate automation regions (in case the session has no audio/midi but is just used for automating plugins or the like) + + //if all else fails, give us 2 minutes + framecnt_t const min_length = _session->nominal_frame_rate()*60*2; + if ( session_extent_end < min_length ) + session_extent_end = min_length; + + std::pair <framepos_t,framepos_t> ret (session_extent_start, session_extent_end); + return ret; +} + bool Editor::autoscroll_canvas () { @@ -612,6 +651,8 @@ Editor::autoscroll_canvas () dx += 10 + (2 * (autoscroll_cnt/2)); dx = pixel_to_sample (dx); + + dx /= 10; //ToDo: make a config variable for scroll speed zoom-behavior-tweaks if (leftmost_frame < max_framepos - dx) { new_frame = leftmost_frame + dx; @@ -628,6 +669,8 @@ Editor::autoscroll_canvas () dx = pixel_to_sample (dx); + dx /= 10; //ToDo: make a config variable for scroll speed zoom-behavior-tweaks + if (leftmost_frame >= dx) { new_frame = leftmost_frame - dx; } else { |