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clamp zoom level to show 3 days on a 4000 pixel wide screen; comment unused variable for now

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This commit is contained in:
Paul Davis 2014-06-11 23:13:26 -04:00
parent 5ee4f41925
commit 18190eaa5e
1 changed files with 18 additions and 3 deletions
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21
gtk2_ardour/editor_ops.cc
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@ -1364,7 +1364,7 @@ Editor::scroll_down_one_track ()
bool
Editor::scroll_up_one_track ()
{
double vertical_pos = vertical_adjustment.get_value ();
// double vertical_pos = vertical_adjustment.get_value ();
TrackViewList::iterator prev = track_views.end();
std::pair<TimeAxisView*,double> res;
@ -1458,8 +1458,23 @@ Editor::clamp_samples_per_pixel (framecnt_t& fpp) const
clamped = true;
}
if (max_framepos / fpp < 800) {
fpp = max_framepos / 800;
framecnt_t sr;
if (_session) {
sr = _session->frame_rate ();
} else {
sr = 48000;
}
const framecnt_t three_days = 3 * 24 * 60 * 60 * sr;
const framecnt_t lots_of_pixels = 4000;
/* if the zoom level is greater than what you'd get trying to display 3
* days of audio on a really big screen, scale it down.
*/
if (fpp * lots_of_pixels > three_days) {
fpp = three_days / _track_canvas->width();
clamped = true;
}