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Fix PianoRoll m_positionLine misalignment on zoom

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This commit is contained in:
Veratil
2021-03-26 02:11:08 -05:00
committed by Kevin Zander
parent 3c4e67c5ae
commit 4bcae1a7cd
1 changed files with 8 additions and 3 deletions
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11
src/gui/editors/PianoRoll.cpp
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@@ -4443,11 +4443,16 @@ void PianoRoll::updatePosition( const TimePos & t )
{
autoScroll( t );
}
const int pos = m_timeLine->pos() * m_ppb / TimePos::ticksPerBar();
if (pos >= m_currentPosition && pos <= m_currentPosition + width() - m_whiteKeyWidth)
// ticks relative to m_currentPosition
// < 0 = outside viewport left
// > width = outside viewport right
const int pos = (static_cast<int>(m_timeLine->pos()) - m_currentPosition) * m_ppb / TimePos::ticksPerBar();
// if pos is within visible range, show it
if (pos >= 0 && pos <= width() - m_whiteKeyWidth)
{
m_positionLine->show();
m_positionLine->move(pos - (m_positionLine->width() - 1) - m_currentPosition + m_whiteKeyWidth, keyAreaTop());
// adjust pos for piano keys width and self line width (align to rightmost of line)
m_positionLine->move(pos + m_whiteKeyWidth - (m_positionLine->width() - 1), keyAreaTop());
}
else
{