formpanel.java

很棒的web服务器源代码

// FormFrame.java
// $Id: FormPanel.java,v 1.3 2000/08/16 21:37:49 ylafon Exp $
// (c) COPYRIGHT MIT and INRIA, 1996.
// Please first read the full copyright statement in file COPYRIGHT.html

package org.w3c.tools.forms ;

import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.Label;
import java.awt.Panel;

public class FormPanel extends Panel {
    /**
     * Our associated form manager.
     */
    FormManager manager = null ;
    /**
     * Our layout manager.
     */
    GridBagLayout gb = null ;
    /**
     * Field's title constraints.
     */
    GridBagConstraints ct = null ;
    /**
     * Field's editor constraints.
     */
    GridBagConstraints cv = null ;

    /**
     * Add a field editor.
     * @param title The title for the field.
     * @param editor Its editor component.
     */

    protected void addField (String title, Component editor) {
	Label label = new Label(title, Label.LEFT) ;
	gb.setConstraints(label, ct) ;
	add(label) ;
	gb.setConstraints(editor, cv) ;
	add(editor) ;
    }

    /**
     * Some insets for the form panel. 
     */

    public Insets insets() {
	return new Insets(5, 5, 5, 5) ;
    }

    /**
     * Darw a rectangle around the form panel.
     */

    public void paint (Graphics g) {
	Dimension d = size();
        g.drawRect(1, 1, d.width - 3, d.height - 3);
    }

    /**
     * Create a new form panel for the given form manager.
     */

    FormPanel(FormManager manager) {
	super() ;
	// Create our layout manager:
	gb = new GridBagLayout() ;
	setLayout(gb) ;
	// Create the title constraints:
	ct         = new GridBagConstraints() ;
	ct.gridx   = GridBagConstraints.RELATIVE ;
	ct.anchor  = GridBagConstraints.EAST ;
	ct.weighty = 1.0 ;
	// Create the value constraints:
	cv           = new GridBagConstraints() ;
	cv.gridx     = GridBagConstraints.RELATIVE ;
	cv.gridwidth = GridBagConstraints.REMAINDER ;
	cv.fill      = GridBagConstraints.HORIZONTAL ;
	cv.anchor    = GridBagConstraints.WEST ;
	cv.weightx   = 1.0 ;
	cv.weighty   = 1.0 ;
    }

   
}