arrowicon.java

java class文件介绍

/* (swing1.1) */
package zb.swing.icons;

import java.awt.*;
import javax.swing.*;
import javax.swing.plaf.basic.*;

/**
 * @version 1.0 02/26/99
 */
public class ArrowIcon
    implements Icon, SwingConstants {
  private static final int DEFAULT_SIZE = 11;
  //private static final int DEFAULT_SIZE = 5;

  private int size;
  private int iconSize;
  private int direction;
  private boolean isEnabled;
  private BasicArrowButton iconRenderer;

  public ArrowIcon(int direction, boolean isPressedView) {
    this(DEFAULT_SIZE, direction, isPressedView);
  }

  public ArrowIcon(int iconSize, int direction, boolean isEnabled) {
    this.size = iconSize / 2;
    this.iconSize = iconSize;
    this.direction = direction;
    this.isEnabled = isEnabled;
    iconRenderer = new BasicArrowButton(direction);
  }

  public void paintIcon(Component c, Graphics g, int x, int y) {
    iconRenderer.paintTriangle(g, x, y, size, direction, isEnabled);
  }

  public int getIconWidth() {
    //int retCode;
    switch (direction) {
      case NORTH:
      case SOUTH:
        return iconSize;
      case EAST:
      case WEST:
        return size;
    }
    return iconSize;
  }

  public int getIconHeight() {
    switch (direction) {
      case NORTH:
      case SOUTH:
        return size;
      case EAST:
      case WEST:
        return iconSize;
    }
    return size;
  }
}