actions/itgmania212121
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

compute scroll bar offsets as floats, for smoother scrolling at higher resolutions

Browse Source
This commit is contained in:
Glenn Maynard
2004-08-14 20:32:55 +00:00
parent c4aadc69e3
commit c54b2fc280
1 changed files with 19 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files
stepmania/src/ScrollBar.cpp
+19 -19
View File
@@ -55,38 +55,38 @@ void ScrollBar::SetPercentage( float fStartPercent, float fEndPercent )
fEndPercent = fmodf( fEndPercent+1, 1 ); fEndPercent = fmodf( fEndPercent+1, 1 );
CHECKPOINT; CHECKPOINT;
int iPart1TopY, iPart1BottomY, iPart2TopY, iPart2BottomY; float fPart1TopY, fPart1BottomY, fPart2TopY, fPart2BottomY;
if( fStartPercent < fEndPercent ) // we only need to one 1 thumb part if( fStartPercent < fEndPercent ) // we only need to one 1 thumb part
{ {
iPart1TopY = (int)SCALE( fStartPercent,0.0f, 1.0f, -iBarContentHeight/2.0f, +iBarContentHeight/2.0f ); fPart1TopY = 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 ); fPart1BottomY = SCALE( fEndPercent, 0.0f, 1.0f, -iBarContentHeight/2.0f, +iBarContentHeight/2.0f );
iPart2TopY = 0; fPart2TopY = 0;
iPart2BottomY = 0; fPart2BottomY = 0;
} }
else // we need two thumb parts else // we need two thumb parts
{ {
iPart1TopY = (int)SCALE( 0.0f, 0.0f, 1.0f, -iBarContentHeight/2.0f, +iBarContentHeight/2.0f ); fPart1TopY = SCALE( 0.0f, 0.0f, 1.0f, -iBarContentHeight/2.0f, +iBarContentHeight/2.0f );
iPart1BottomY = (int)SCALE( fEndPercent, 0.0f, 1.0f, -iBarContentHeight/2.0f, +iBarContentHeight/2.0f ); fPart1BottomY = SCALE( fEndPercent, 0.0f, 1.0f, -iBarContentHeight/2.0f, +iBarContentHeight/2.0f );
iPart2TopY = (int)SCALE( fStartPercent,0.0f, 1.0f, -iBarContentHeight/2.0f, +iBarContentHeight/2.0f ); fPart2TopY = SCALE( fStartPercent,0.0f, 1.0f, -iBarContentHeight/2.0f, +iBarContentHeight/2.0f );
iPart2BottomY = (int)SCALE( 1.0f, 0.0f, 1.0f, -iBarContentHeight/2.0f, +iBarContentHeight/2.0f ); fPart2BottomY = SCALE( 1.0f, 0.0f, 1.0f, -iBarContentHeight/2.0f, +iBarContentHeight/2.0f );
} }
CHECKPOINT; CHECKPOINT;
m_sprScrollThumbPart1.StretchTo( RectI( m_sprScrollThumbPart1.StretchTo( RectF(
(int)-m_sprScrollThumbPart1.GetUnzoomedWidth()/2, -m_sprScrollThumbPart1.GetUnzoomedWidth()/2,
iPart1TopY, fPart1TopY,
(int)+m_sprScrollThumbPart1.GetUnzoomedWidth()/2, +m_sprScrollThumbPart1.GetUnzoomedWidth()/2,
iPart1BottomY fPart1BottomY
) ); ) );
CHECKPOINT; CHECKPOINT;
m_sprScrollThumbPart2.StretchTo( RectI( m_sprScrollThumbPart2.StretchTo( RectF(
(int)-m_sprScrollThumbPart2.GetUnzoomedWidth()/2, -m_sprScrollThumbPart2.GetUnzoomedWidth()/2,
iPart2TopY, fPart2TopY,
(int)+m_sprScrollThumbPart2.GetUnzoomedWidth()/2, +m_sprScrollThumbPart2.GetUnzoomedWidth()/2,
iPart2BottomY fPart2BottomY
) ); ) );
CHECKPOINT; CHECKPOINT;
} }