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Remove some calls to process_updates() which I think prevent GTK coalescing redraw requests. Remove some debugging code. Suspend update of MIDI regions during scroomer drag to speed things up (#3954).

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git-svn-id: svn://localhost/ardour2/branches/3.0@9357 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Carl Hetherington 2011-04-16 13:31:27 +00:00
parent 443c51fee2
commit cb643ab965
6 changed files with 49 additions and 37 deletions
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38
gtk2_ardour/midi_streamview.cc
View file

@ -65,6 +65,7 @@ MidiStreamView::MidiStreamView (MidiTimeAxisView& tv)
, _data_note_min(60)
, _data_note_max(71)
, _note_lines (0)
, _updates_suspended (false)
{
/* use a group dedicated to MIDI underlays. Audio underlays are not in this group. */
midi_underlay_group = new ArdourCanvas::Group (*_canvas_group);
@ -310,7 +311,7 @@ MidiStreamView::update_contents_height ()
void
MidiStreamView::draw_note_lines()
{
if (!_note_lines) {
if (!_note_lines || _updates_suspended) {
return;
}
@ -371,7 +372,7 @@ MidiStreamView::apply_note_range(uint8_t lowest, uint8_t highest, bool to_region
{
_highest_note = highest;
_lowest_note = lowest;
int const range = _highest_note - _lowest_note;
int const pixels_per_note = floor (child_height () / range);
@ -405,12 +406,20 @@ MidiStreamView::apply_note_range(uint8_t lowest, uint8_t highest, bool to_region
draw_note_lines();
if (to_region_views) {
apply_note_range_to_regions ();
}
NoteRangeChanged();
}
void
MidiStreamView::apply_note_range_to_regions ()
{
if (!_updates_suspended) {
for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
((MidiRegionView*)(*i))->apply_note_range(_lowest_note, _highest_note);
}
}
NoteRangeChanged();
}
void
@ -649,3 +658,24 @@ MidiStreamView::y_to_note (double y) const
return n;
}
/** Suspend updates to the regions' note ranges and our
* note lines until resume_updates() is called.
*/
void
MidiStreamView::suspend_updates ()
{
_updates_suspended = true;
}
/** Resume updates to region note ranges and note lines,
* and update them now.
*/
void
MidiStreamView::resume_updates ()
{
_updates_suspended = false;
draw_note_lines ();
apply_note_range_to_regions ();
}