CD/PC Actual Thematic 7: Programming/CDAT7.iso/demos/VisualAge for Java 2.0 Entry/setup/data1.cab/ide-e/IDE/cache/73XY51

Java Class File | 1998-09-16 | 6.4 KB | 157 lines

package com.sun.java.swing.plaf.basic;

import com.sun.java.swing.AbstractButton;
import com.sun.java.swing.Icon;
import com.sun.java.swing.JComponent;
import com.sun.java.swing.JMenuItem;
import com.sun.java.swing.JRadioButtonMenuItem;
import com.sun.java.swing.LookAndFeel;
import com.sun.java.swing.MenuElement;
import com.sun.java.swing.MenuSelectionManager;
import com.sun.java.swing.UIManager;
import com.sun.java.swing.plaf.ComponentUI;
import com.sun.java.swing.plaf.RadioButtonMenuItemUI;
import com.sun.java.swing.plaf.UIResource;
import java.awt.AWTEvent;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Insets;
import java.awt.Point;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.io.Serializable;

public class BasicRadioButtonMenuItemUI extends RadioButtonMenuItemUI implements Serializable {
   protected static Color pressedBackground = null;
   protected static Color pressedForeground = null;
   protected Icon menuArrow = null;
   protected Icon checkIcon = null;
   protected static final int defaultTextIconGap = 4;
   protected MouseListener mouseListener;
   protected MouseMotionListener mouseMotionListener;
   protected boolean oldBorderPainted;

   protected void addListeners(JComponent c) {
      ((Component)c).addMouseListener(this.mouseListener);
      ((Component)c).addMouseMotionListener(this.mouseMotionListener);
   }

   protected MouseListener createMouseListener(JComponent c) {
      return new BasicMenuMouseListener();
   }

   protected MouseMotionListener createMouseMotionListener(JComponent c) {
      return new BasicMenuMouseMotionListener();
   }

   public static ComponentUI createUI(JComponent b) {
      return new BasicRadioButtonMenuItemUI();
   }

   public Insets getDefaultMargin(AbstractButton c) {
      return new Insets(2, 2, 2, 2);
   }

   public Dimension getMaximumSize(JComponent c) {
      return this.getPreferredSize(c);
   }

   public Dimension getMinimumSize(JComponent c) {
      return this.getPreferredSize(c);
   }

   public Dimension getPreferredSize(JComponent c) {
      return BasicGraphicsUtils.getPreferredMenuItemSize(c, this.checkIcon, this.menuArrow, 4);
   }

   protected void initListeners(JComponent c) {
      this.mouseListener = this.createMouseListener(c);
      this.mouseMotionListener = this.createMouseMotionListener(c);
   }

   public void installUI(JComponent c) {
      JRadioButtonMenuItem menuItem = (JRadioButtonMenuItem)c;
      this.initListeners(c);
      this.addListeners(c);
      c.setOpaque(true);
      LookAndFeel.installBorder(c, "MenuItem.border");
      this.oldBorderPainted = ((AbstractButton)menuItem).isBorderPainted();
      ((AbstractButton)menuItem).setBorderPainted((Boolean)UIManager.get("MenuItem.borderPainted"));
      LookAndFeel.installColorsAndFont(c, "MenuItem.background", "MenuItem.foreground", "MenuItem.font");
      if (pressedBackground == null || pressedBackground instanceof UIResource) {
         pressedBackground = UIManager.getColor("MenuItem.pressedBackground");
      }

      if (pressedForeground == null || pressedForeground instanceof UIResource) {
         pressedForeground = UIManager.getColor("MenuItem.pressedForeground");
      }

      if (this.menuArrow == null || this.menuArrow instanceof UIResource) {
         this.menuArrow = UIManager.getIcon("MenuItem.arrowIcon");
      }

      if (((AbstractButton)menuItem).getSelectedIcon() == null || ((AbstractButton)menuItem).getSelectedIcon() instanceof UIResource) {
         ((AbstractButton)menuItem).setSelectedIcon(UIManager.getIcon("RadioButtonMenuItem.icon"));
      }

   }

   public void paint(Graphics g, JComponent c) {
      BasicGraphicsUtils.paintMenuItem(g, c, ((JRadioButtonMenuItem)c).getSelectedIcon(), this.menuArrow, pressedBackground, pressedForeground, 4);
   }

   public void processMouseEvent(JMenuItem item, MouseEvent e, MenuElement[] path, MenuSelectionManager manager) {
      Point p = e.getPoint();
      if (p.x >= 0 && p.x < ((JComponent)item).getWidth() && p.y >= 0 && p.y < ((JComponent)item).getHeight()) {
         if (((AWTEvent)e).getID() == 502) {
            manager.clearSelectedPath();
            ((AbstractButton)item).doClick(0);
            item.setArmed(false);
         } else {
            manager.setSelectedPath(path);
         }
      } else if (((AbstractButton)item).getModel().isArmed()) {
         MenuElement[] newPath = new MenuElement[path.length - 1];
         int i = 0;

         for(int c = path.length - 1; i < c; ++i) {
            newPath[i] = path[i];
         }

         manager.setSelectedPath(newPath);
      }

   }

   protected void removeListeners(JComponent c) {
      ((Component)c).removeMouseListener(this.mouseListener);
      ((Component)c).removeMouseMotionListener(this.mouseMotionListener);
   }

   public void uninstallUI(JComponent c) {
      JRadioButtonMenuItem menuItem = (JRadioButtonMenuItem)c;
      this.removeListeners(c);
      LookAndFeel.uninstallBorder(c);
      ((JMenuItem)c).setBorderPainted(this.oldBorderPainted);
      if (this.menuArrow instanceof UIResource) {
         this.menuArrow = null;
      }

      if (this.checkIcon instanceof UIResource) {
         this.checkIcon = null;
      }

      if (((AbstractButton)menuItem).getSelectedIcon() instanceof UIResource) {
         ((AbstractButton)menuItem).setSelectedIcon((Icon)null);
      }

   }

   public void update(Graphics g, JComponent c) {
      this.paint(g, c);
   }
}