flowalignmenteditor.java

来自「深入浅出的介绍j2ee的相关基本知识」· Java 代码 · 共 52 行

package javabeans;

import java.beans.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class FlowAlignmentEditor extends PropertyEditorSupport {
  private static String[] resourceStrings = { "Left", "Center", "Right", };
  private static int[] intValues = { 0, 1, 2, };
  private static String[] sourceCodeStrings = { "FlowLayout.LEFT", "FlowLayout.CENTER", "FlowLayout.RIGHT", };

  public FlowAlignmentEditor() {
  }
  public String[] getTags() {
    return resourceStrings;
  }
  public String getJavaInitializationString() {
    Object value = getValue();
    for (int i = 0; i < intValues.length; i++) {
      if (value.equals(new Integer(intValues[i]))) {
        return sourceCodeStrings[i];
      }
    }
    return null;
  }
  public String getAsText() {
    Object value = getValue();
    for (int i = 0; i < intValues.length; i++) {
      if (value.equals(new Integer(intValues[i]))) {
        return resourceStrings[i];
      }
    }
    return null;
  }
  public void setAsText(String text) throws IllegalArgumentException {
    for (int i = 0; i < resourceStrings.length; i++) {
      if (text.equals(resourceStrings[i])) {
        setValue(new Integer(intValues[i]));
        return;
      }
    }
    throw new IllegalArgumentException();
  }
}