CD Actual Thematic 7: Programming/CDAT7.iso/demos/VisualAge for Java 2.0 Entry/setup/data1.cab/ide-e/IDE/cache/1VQZOU6

Java Class File | 1998-09-16 | 5.7 KB | 176 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 void addImpl(Component comp, Object constraints, int index) {
      super.addImpl(comp, constraints, index);
      if (this.glassPane != null && this.glassPane.getParent() == this && ((Container)this).getComponent(0) != this.glassPane) {
         ((Container)this).add(this.glassPane, 0);
      }

   }

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

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

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

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

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

      return super.accessibleContext;
   }

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

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

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

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

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

   public boolean isValidateRoot() {
      return true;
   }

   public void setContentPane(Container content) {
      if (content == 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 = content;
         this.layeredPane.add(this.contentPane, JLayeredPane.FRAME_CONTENT_LAYER);
      }
   }

   public void setDefaultButton(JButton defaultButton) {
      JButton oldDefault = this.defaultButton;
      this.defaultButton = defaultButton;
      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 (oldDefault != defaultButton) {
         this.defaultPressAction.setOwner(defaultButton);
         this.defaultReleaseAction.setOwner(defaultButton);
         if (oldDefault != null) {
            ((Component)oldDefault).repaint();
         }

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

      ((JComponent)this).firePropertyChange("defaultButton", oldDefault, defaultButton);
   }

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

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

      }
   }

   public void setLayeredPane(JLayeredPane layered) {
      if (layered == 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 = layered;
         ((Container)this).add(this.layeredPane, -1);
      }
   }

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

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

   }
}