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Java by API/java.awt.event/HierarchyEvent - История изменений
2026-04-29T10:37:27Z
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в 17:43, 31 мая 2010
2010-05-31T17:43:48Z
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Admin: 1 версия
2010-05-31T14:17:49Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>== HierarchyEvent: getChangeFlags() ==<br />
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<!-- start source code --><br />
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<source lang="java"><br />
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import java.awt.BorderLayout;<br />
import java.awt.event.HierarchyEvent;<br />
import java.awt.event.HierarchyListener;<br />
import javax.swing.JButton;<br />
import javax.swing.JComponent;<br />
import javax.swing.JFrame;<br />
import javax.swing.JSplitPane;<br />
public class Main {<br />
public static void main(String[] a) {<br />
JFrame horizontalFrame = new JFrame();<br />
horizontalFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);<br />
JComponent topButton = new JButton("Left");<br />
JComponent bottomButton = new JButton("Right");<br />
final JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT);<br />
HierarchyListener hierarchyListener = new HierarchyListener() {<br />
public void hierarchyChanged(HierarchyEvent e) {<br />
long flags = e.getChangeFlags();<br />
System.out.println(e.getSource()); <br />
if ((flags & HierarchyEvent.SHOWING_CHANGED) ==<br />
HierarchyEvent.SHOWING_CHANGED) {<br />
splitPane.setDividerLocation(.75);<br />
}<br />
}<br />
};<br />
splitPane.addHierarchyListener(hierarchyListener);<br />
splitPane.setTopComponent(topButton);<br />
splitPane.setBottomComponent(bottomButton);<br />
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horizontalFrame.add(splitPane, BorderLayout.CENTER);<br />
horizontalFrame.setSize(150, 150);<br />
horizontalFrame.setVisible(true);<br />
}<br />
}<br />
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</source><br />
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<!-- end source code --><br />
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== HierarchyEvent.SHOWING_CHANGED ==<br />
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<!-- start source code --><br />
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<source lang="java"><br />
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import java.awt.BorderLayout;<br />
import java.awt.event.HierarchyEvent;<br />
import java.awt.event.HierarchyListener;<br />
import javax.swing.JButton;<br />
import javax.swing.JComponent;<br />
import javax.swing.JFrame;<br />
import javax.swing.JSplitPane;<br />
public class Main {<br />
public static void main(String[] a) {<br />
JFrame horizontalFrame = new JFrame();<br />
horizontalFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);<br />
JComponent topButton = new JButton("Left");<br />
JComponent bottomButton = new JButton("Right");<br />
final JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT);<br />
HierarchyListener hierarchyListener = new HierarchyListener() {<br />
public void hierarchyChanged(HierarchyEvent e) {<br />
long flags = e.getChangeFlags();<br />
System.out.println(e.getSource()); <br />
if ((flags & HierarchyEvent.SHOWING_CHANGED) ==<br />
HierarchyEvent.SHOWING_CHANGED) {<br />
splitPane.setDividerLocation(.75);<br />
}<br />
}<br />
};<br />
splitPane.addHierarchyListener(hierarchyListener);<br />
splitPane.setTopComponent(topButton);<br />
splitPane.setBottomComponent(bottomButton);<br />
<br />
horizontalFrame.add(splitPane, BorderLayout.CENTER);<br />
horizontalFrame.setSize(150, 150);<br />
horizontalFrame.setVisible(true);<br />
}<br />
}<br />
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</source><br />
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<!-- end source code --></div>
Admin