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fix ScrollBar flickering: -1 is used as a sentinel value, but is a valid coordinate

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simplify
This commit is contained in:
Glenn Maynard
2004-08-14 20:18:34 +00:00
parent 646b3fee12
commit c4aadc69e3
1 changed files with 8 additions and 15 deletions
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stepmania/src/ScrollBar.cpp
+8 -15
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@@ -61,8 +61,8 @@ void ScrollBar::SetPercentage( float fStartPercent, float fEndPercent )
{ {
iPart1TopY = (int)SCALE( fStartPercent,0.0f, 1.0f, -iBarContentHeight/2.0f, +iBarContentHeight/2.0f ); iPart1TopY = (int)SCALE( fStartPercent,0.0f, 1.0f, -iBarContentHeight/2.0f, +iBarContentHeight/2.0f );
iPart1BottomY = (int)SCALE( fEndPercent, 0.0f, 1.0f, -iBarContentHeight/2.0f, +iBarContentHeight/2.0f ); iPart1BottomY = (int)SCALE( fEndPercent, 0.0f, 1.0f, -iBarContentHeight/2.0f, +iBarContentHeight/2.0f );
iPart2TopY = -1; iPart2TopY = 0;
iPart2BottomY = -1; iPart2BottomY = 0;
} }
else // we need two thumb parts else // we need two thumb parts
{ {
@@ -82,19 +82,12 @@ void ScrollBar::SetPercentage( float fStartPercent, float fEndPercent )
) ); ) );
CHECKPOINT; CHECKPOINT;
if( iPart2TopY != -1 ) m_sprScrollThumbPart2.StretchTo( RectI(
{ (int)-m_sprScrollThumbPart2.GetUnzoomedWidth()/2,
m_sprScrollThumbPart2.StretchTo( RectI( iPart2TopY,
(int)-m_sprScrollThumbPart2.GetUnzoomedWidth()/2, (int)+m_sprScrollThumbPart2.GetUnzoomedWidth()/2,
iPart2TopY, iPart2BottomY
(int)+m_sprScrollThumbPart2.GetUnzoomedWidth()/2, ) );
iPart2BottomY
) );
}
else
{
m_sprScrollThumbPart2.SetZoomY( 0 );
}
CHECKPOINT; CHECKPOINT;
} }