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skip offset updates in page scroll if no pages

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This commit is contained in:
Bradley Cicenas 2017-07-07 12:38:02 +00:00
parent c47ba3f804
commit 0a05007c4e
1 changed files with 9 additions and 6 deletions
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15
cursor.go
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@ -143,8 +143,10 @@ func (gc *GridCursor) PgUp() {
}
nextidx := int(math.Max(0.0, float64(idx-cGrid.MaxRows())))
cGrid.Offset = int(math.Max(float64(cGrid.Offset-cGrid.MaxRows()),
float64(0)))
if gc.pgCount() > 0 {
cGrid.Offset = int(math.Max(float64(cGrid.Offset-cGrid.MaxRows()),
float64(0)))
}
active := gc.filtered[idx]
next := gc.filtered[nextidx]
@ -163,10 +165,11 @@ func (gc *GridCursor) PgDown() {
return
}
nextidx := int(math.Min(float64(gc.Len()-1),
float64(idx+cGrid.MaxRows())))
cGrid.Offset = int(math.Min(float64(cGrid.Offset+cGrid.MaxRows()),
float64(gc.Len()-cGrid.MaxRows())))
nextidx := int(math.Min(float64(gc.Len()-1), float64(idx+cGrid.MaxRows())))
if gc.pgCount() > 0 {
cGrid.Offset = int(math.Min(float64(cGrid.Offset+cGrid.MaxRows()),
float64(gc.Len()-cGrid.MaxRows())))
}
active := gc.filtered[idx]
next := gc.filtered[nextidx]