Autres/audacity
1
0
Fork 0
mirror of https://github.com/cookiengineer/audacity synced 2025-06-25 16:48:44 +02:00
Code Issues Releases Wiki Activity

Avoid wasteful Refresh() in stereo track spectrogram view.

Browse Source 
Thanks to Darrell Walisser for the outline of the problem, which was causing laggy dragging of stereo track sizes in spectrogram view.
This was caused by refreshing the horizontal ruler unnecessarily.
This commit is contained in:
James Crook 2016-09-11 16:52:49 +01:00
parent 8b9fab8ff5
commit 4251ef8c48
1 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/TrackPanel.cpp
View File

@ -4860,9 +4860,7 @@ void TrackPanel::HandleSliders(wxMouseEvent &event, bool pan)
void TrackPanel::OnTrackListResized(wxCommandEvent & e)
{
Track *t = (Track *) e.GetClientData();
UpdateVRuler(t);
e.Skip();
}
@ -7289,16 +7287,20 @@ void TrackPanel::UpdateVRulerSize()
TrackListIterator iter(GetTracks());
Track *t = iter.First();
if (t) {
// Find the maximum of the VRuler sizes.
// We are only interested in width in fact.
wxSize s = t->vrulerSize;
while (t) {
s.IncTo(t->vrulerSize);
t = iter.Next();
}
if (vrulerSize != s) {
vrulerSize = s;
// If the width of the VRuler has changed, we need to
// shift the HRuler
if (vrulerSize.GetWidth() != s.GetWidth()) {
mRuler->SetLeftOffset(GetLeftOffset()); // bevel on AdornedRuler
mRuler->Refresh();
}
vrulerSize = s;
}
Refresh(false);
}