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-rw-r--r--libjava/classpath/java/awt/ScrollPane.java32
1 files changed, 27 insertions, 5 deletions
diff --git a/libjava/classpath/java/awt/ScrollPane.java b/libjava/classpath/java/awt/ScrollPane.java
index 525d9d3e7da..65ce484b88d 100644
--- a/libjava/classpath/java/awt/ScrollPane.java
+++ b/libjava/classpath/java/awt/ScrollPane.java
@@ -46,6 +46,7 @@ import javax.accessibility.Accessible;
import javax.accessibility.AccessibleContext;
import javax.accessibility.AccessibleRole;
+
/**
* This widget provides a scrollable region that allows a single
* subcomponent to be viewed through a smaller window.
@@ -76,6 +77,11 @@ public static final int SCROLLBARS_ALWAYS = 1;
*/
public static final int SCROLLBARS_NEVER = 2;
+/**
+ * The number used to generate the name returned by getName.
+ */
+private static transient long next_scrollpane_number;
+
// Serialization constant
private static final long serialVersionUID = 7956609840827222915L;
@@ -221,7 +227,7 @@ getVAdjustable()
* @return The viewport size.
*/
public Dimension getViewportSize ()
-{
+{
Dimension viewsize = getSize ();
Insets insets = getInsets ();
@@ -231,9 +237,9 @@ public Dimension getViewportSize ()
Component[] list = getComponents();
if ((list == null) || (list.length <= 0))
return viewsize;
-
+
Dimension dim = list[0].getPreferredSize();
-
+
if (dim.width <= 0 && dim.height <= 0)
return viewsize;
@@ -276,7 +282,7 @@ public Dimension getViewportSize ()
needHorizontal = true;
else if (dim.width > (viewsize.width - vScrollbarWidth))
mayNeedHorizontal = true;
-
+
if (needVertical && mayNeedHorizontal)
needHorizontal = true;
@@ -288,7 +294,7 @@ public Dimension getViewportSize ()
if (needVertical)
viewsize.width -= vScrollbarWidth;
-
+
return viewsize;
}
@@ -613,5 +619,21 @@ paramString()
accessibleContext = new AccessibleAWTScrollPane();
return accessibleContext;
}
+
+ /**
+ * Generate a unique name for this <code>ScrollPane</code>.
+ *
+ * @return A unique name for this <code>ScrollPane</code>.
+ */
+ String generateName()
+ {
+ return "scrollpane" + getUniqueLong();
+ }
+
+ private static synchronized long getUniqueLong()
+ {
+ return next_scrollpane_number++;
+ }
+
} // class ScrollPane
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