PC Plus SuperCD (UK) 2000 March/pcp161a.iso/handson/files/copyjava.exe/com/sun/java/swing/JRootPane.class

Java Class File | 1998-02-26 | 5.0 KB | 172 lines

package com.sun.java.swing;

import com.sun.java.accessibility.Accessible;
import com.sun.java.accessibility.AccessibleContext;
import java.awt.Component;
import java.awt.Container;
import java.awt.IllegalComponentStateException;
import java.awt.LayoutManager;

public class JRootPane extends JComponent implements Accessible {
   protected JMenuBar menuBar;
   protected Container contentPane;
   protected JLayeredPane layeredPane;
   protected Component glassPane;
   protected JButton defaultButton;
   protected DefaultAction defaultPressAction;
   protected DefaultAction defaultReleaseAction;

   public JRootPane() {
      this.setGlassPane(this.createGlassPane());
      this.setLayeredPane(this.createLayeredPane());
      this.setContentPane(this.createContentPane());
      ((Container)this).setLayout(this.createRootLayout());
      ((JComponent)this).setDoubleBuffered(true);
      ((Component)this).setBackground(UIManager.getColor("control"));
   }

   protected JLayeredPane createLayeredPane() {
      JLayeredPane var1 = new JLayeredPane();
      ((Component)var1).setName(((Component)this).getName() + ".layeredPane");
      return var1;
   }

   protected Container createContentPane() {
      JPanel var1 = new JPanel();
      ((Component)var1).setName(((Component)this).getName() + ".contentPane");
      ((Container)var1).setLayout(new 1());
      return var1;
   }

   protected Component createGlassPane() {
      JPanel var1 = new JPanel();
      ((Component)var1).setName(((Component)this).getName() + ".glassPane");
      ((JComponent)var1).setVisible(false);
      ((JPanel)var1).setOpaque(false);
      return var1;
   }

   protected LayoutManager createRootLayout() {
      return new RootLayout(this);
   }

   public void setMenuBar(JMenuBar var1) {
      if (this.menuBar != null && this.menuBar.getParent() == this.layeredPane) {
         this.layeredPane.remove(this.menuBar);
      }

      this.menuBar = var1;
      if (this.menuBar != null) {
         this.layeredPane.add(this.menuBar, JLayeredPane.FRAME_CONTENT_LAYER);
      }

   }

   public JMenuBar getMenuBar() {
      return this.menuBar;
   }

   public void setContentPane(Container var1) {
      if (var1 == null) {
         throw new IllegalComponentStateException("contentPane cannot be set to null.");
      } else {
         if (this.contentPane != null && this.contentPane.getParent() == this.layeredPane) {
            this.layeredPane.remove(this.contentPane);
         }

         this.contentPane = var1;
         this.layeredPane.add(this.contentPane, JLayeredPane.FRAME_CONTENT_LAYER);
      }
   }

   public Container getContentPane() {
      return this.contentPane;
   }

   public void setLayeredPane(JLayeredPane var1) {
      if (var1 == null) {
         throw new IllegalComponentStateException("layeredPane cannot be set to null.");
      } else {
         if (this.layeredPane != null && this.layeredPane.getParent() == this) {
            ((Container)this).remove(this.layeredPane);
         }

         this.layeredPane = var1;
         ((Container)this).add(this.layeredPane, -1);
      }
   }

   public JLayeredPane getLayeredPane() {
      return this.layeredPane;
   }

   public void setGlassPane(Component var1) {
      if (var1 == null) {
         throw new NullPointerException("glassPane cannot be set to null.");
      } else {
         boolean var2 = false;
         if (this.glassPane != null && this.glassPane.getParent() == this) {
            ((Container)this).remove(this.glassPane);
            var2 = this.glassPane.isVisible();
         }

         var1.setVisible(var2);
         this.glassPane = var1;
         ((Container)this).add(this.glassPane, 0);
         if (var2) {
            ((Component)this).repaint();
         }

      }
   }

   public Component getGlassPane() {
      return this.glassPane;
   }

   public void setDefaultButton(JButton var1) {
      JButton var2 = this.defaultButton;
      this.defaultButton = var1;
      if (this.defaultPressAction == null) {
         this.defaultPressAction = new DefaultAction(this, true);
         this.defaultReleaseAction = new DefaultAction(this, false);
         ((JComponent)this).registerKeyboardAction(this.defaultPressAction, KeyStroke.getKeyStroke(10, 0, false), 2);
         ((JComponent)this).registerKeyboardAction(this.defaultReleaseAction, KeyStroke.getKeyStroke(10, 0, true), 2);
      }

      if (var2 != var1) {
         this.defaultPressAction.setOwner(var1);
         this.defaultReleaseAction.setOwner(var1);
         if (var2 != null) {
            ((Component)var2).repaint();
         }

         if (var1 != null) {
            ((Component)var1).repaint();
         }
      }

      ((JComponent)this).firePropertyChange("defaultButton", var2, var1);
   }

   public JButton getDefaultButton() {
      return this.defaultButton;
   }

   protected void addImpl(Component var1, Object var2, int var3) {
      super.addImpl(var1, var2, var3);
      if (this.glassPane != null && this.glassPane.getParent() == this && ((Container)this).getComponent(0) != this.glassPane) {
         ((Container)this).add(this.glassPane, 0);
      }

   }

   public AccessibleContext getAccessibleContext() {
      if (super.accessibleContext == null) {
         super.accessibleContext = new AccessibleJRootPane(this);
      }

      return super.accessibleContext;
   }
}