eachroweditor.java

tame,扩展了好多SWing组件:JTable

/* (swing1.1.1) jfc#91 */
package tame.table;

import java.awt.Component;
import java.awt.event.MouseEvent;
import java.util.EventObject;
import java.util.Hashtable;

import javax.swing.DefaultCellEditor;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.event.CellEditorListener;
import javax.swing.table.TableCellEditor;

/**
Each row TableCellEditor.
@author Nobuo Tamemasa
@version 1.1 09/09/99
*/
public class EachRowEditor implements TableCellEditor {
  protected Hashtable editors;
  protected TableCellEditor editor, defaultEditor;
  JTable table;

  /**
   * Constructs a EachRowEditor.
   * create default editor
   *
  see TableCellEditor
  see DefaultCellEditor
  */
  public EachRowEditor(JTable table) {
    this.table = table;
    editors = new Hashtable();
    defaultEditor = new DefaultCellEditor(new JTextField());
  }

  /**
  param row    table row
  param editor table cell editor
  */
  public void setEditorAt(int row, TableCellEditor editor) {
    editors.put(new Integer(row),editor);
  }

  public Component getTableCellEditorComponent(JTable table,
      Object value, boolean isSelected, int row, int column) {
    //editor = (TableCellEditor)editors.get(new Integer(row));
    //if (editor == null) {
    //  editor = defaultEditor;
    //}
    return editor.getTableCellEditorComponent(table,
             value, isSelected, row, column);
  }

  public Object getCellEditorValue() {
    return editor.getCellEditorValue();
  }
  public boolean stopCellEditing() {
    return editor.stopCellEditing();
  }
  public void cancelCellEditing() {
    editor.cancelCellEditing();
  }
  public boolean isCellEditable(EventObject anEvent) {
    selectEditor((MouseEvent)anEvent);
    return editor.isCellEditable(anEvent);
  }
  public void addCellEditorListener(CellEditorListener l) {
    editor.addCellEditorListener(l);
  }
  public void removeCellEditorListener(CellEditorListener l) {
    editor.removeCellEditorListener(l);
  }
  public boolean shouldSelectCell(EventObject anEvent) {
    selectEditor((MouseEvent)anEvent);
    return editor.shouldSelectCell(anEvent);
  }

  protected void selectEditor(MouseEvent e) {
    int row;
    if (e == null) {
      row = table.getSelectionModel().getAnchorSelectionIndex();
    } else {
      row = table.rowAtPoint(e.getPoint());
    }
    editor = (TableCellEditor)editors.get(new Integer(row));
    if (editor == null) {
      editor = defaultEditor;
    }
  }
}