AuroraMiddleware/scuffed-code
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Scrollbars were getting created with negative block increments

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if the component were not yet visible, leading to warnings on linux
systems.  Force block increment to at least zero in order to avoid
spurious warnings.

X-SVN-Rev: 1347
This commit is contained in:
Doug Felt 2000-05-10 21:54:57 +00:00
parent afc7dc4f92
commit 5275593e3f
1 changed files with 7 additions and 6 deletions
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13
icu4j/src/com/ibm/richtext/textpanel/Scroller.java
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@ -1,5 +1,5 @@
/*
* @(#)$RCSfile: Scroller.java,v $ $Revision: 1.1 $ $Date: 2000/04/20 17:51:23 $
* @(#)$RCSfile: Scroller.java,v $ $Revision: 1.2 $ $Date: 2000/05/10 21:54:57 $
*
* (C) Copyright IBM Corp. 1998-1999. All Rights Reserved.
*
@ -140,7 +140,8 @@ final class Scroller implements AdjustmentListener
scrollbar.setMinimum(minimum);
scrollbar.setMaximum(maximum);
scrollbar.setVisibleAmount(visible);
scrollbar.setBlockIncrement(visible-DEFAULT_UNIT_INC);
// workaround setBlockIncrement warnings for negative increments
scrollbar.setBlockIncrement(Math.max(0, visible - DEFAULT_UNIT_INC));
}
}
@ -185,8 +186,8 @@ final class Scroller implements AdjustmentListener
public void setHorizPageOverlap(int newOverlap)
{
if (fHorizScrollBar != null) {
fHorizScrollBar.setBlockIncrement(
fHorizScrollBar.getVisibleAmount()-newOverlap);
fHorizScrollBar.setBlockIncrement( // workaround warnings for negative values on linux
Math.max(0, fHorizScrollBar.getVisibleAmount()-newOverlap));
}
}
@ -200,8 +201,8 @@ final class Scroller implements AdjustmentListener
public void setVertPageOverlap(int newOverlap)
{
if (fVertScrollBar != null) {
fVertScrollBar.setBlockIncrement(
fVertScrollBar.getVisibleAmount()-newOverlap);
fVertScrollBar.setBlockIncrement( // workaround warnings for negative values on linux
Math.max(0, fVertScrollBar.getVisibleAmount()-newOverlap));
}
}
}