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Code Issues Releases Wiki Activity

Improve mouse wheel zooming

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Zooming with mouse was virtually unusable before this fix, as the location of interest would move
around too much on a zoom in.
This commit is contained in:
James Crook 2018-01-07 18:27:40 +00:00
parent 0cc9c6bc3b
commit bf30c6198c
1 changed files with 6 additions and 0 deletions
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6
src/tracks/ui/CommonTrackPanelCell.cpp
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@ -79,6 +79,12 @@ unsigned CommonTrackPanelCell::HandleWheelRotation
center_h = viewInfo.h + (pProject->GetScreenEndTime() - viewInfo.h) / 2.0;
xx = viewInfo.TimeToPosition(center_h, trackLeftEdge);
}
else if( steps > 0 ){
// When zooming in, keep the selection start where it was.
// This is particularly helpful for a point selection.
center_h = viewInfo.selectedRegion.t0();
xx = viewInfo.TimeToPosition( center_h, trackLeftEdge);
}
else
{
xx = event.m_x;