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[cp-patches] Re: [gui] ToolTipManager.mouseMoved()
From: |
Mark Wielaard |
Subject: |
[cp-patches] Re: [gui] ToolTipManager.mouseMoved() |
Date: |
Sun, 14 Nov 2004 17:23:27 +0100 |
Hi,
On Fri, 2004-11-12 at 23:08, Mark Wielaard wrote:
> Does this patch make sense, or should currentComponent never be null
> when mouseMoved() is called?
>
> 2004-11-12 Mark Wielaard <address@hidden>
>
> * javax/swing/ToolTipManager.java (mouseMoved): Set currentComponent
> when not yet set.
>
> I get NullPointerExceptions in jfreechart without this.
On irc Graydon said to commit this if it improved the situation for me.
So I did (GNU Classpath CVS and gui branch).
Cheers,
Mark
________________________________________________________________________
> Index: javax/swing/ToolTipManager.java
> ===================================================================
> RCS file: /cvsroot/classpath/classpath/javax/swing/ToolTipManager.java,v
> retrieving revision 1.8
> diff -u -r1.8 ToolTipManager.java
> --- javax/swing/ToolTipManager.java 11 Nov 2004 17:22:52 -0000 1.8
> +++ javax/swing/ToolTipManager.java 12 Nov 2004 22:08:18 -0000
> @@ -452,7 +452,13 @@
> {
> currentPoint = event.getPoint();
> if (currentTip != null)
> - currentTip.setTipText(((JComponent)
> currentComponent).getToolTipText(event));
> + {
> + if (currentComponent == null)
> + currentComponent = (Component) event.getSource();
> +
> + String text = ((JComponent) currentComponent).getToolTipText(event);
> + currentTip.setTipText(text);
> + }
> if (enterTimer.isRunning())
> enterTimer.restart();
> }
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