crmsbuttonbar.java

CRMS客户关系管理系统(JAVA版）,这是一个客户关系管理系统。

package crms.ui;

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

public class CRMSButtonBar extends JPanel {
	JPanel left = null;
	JPanel middle = null;
	JPanel right = null;

	public static final int LEFT = 0;
	public static final int MIDDLE = 1;
	public static final int RIGHT = 2;

	public CRMSButtonBar() {
		left = new JPanel(new FlowLayout(FlowLayout.LEFT));
		middle = new JPanel(new FlowLayout(FlowLayout.CENTER));
		right = new JPanel(new FlowLayout(FlowLayout.RIGHT));
		

		setLayout(new BorderLayout());
		
		add(left, BorderLayout.WEST);
		add(middle, BorderLayout.CENTER);
		add(right, BorderLayout.EAST);

		setBackground(Color.WHITE);
	}

	public void setBackground(Color color) {
		super.setBackground(color);

		// handle the pre-init thing
		if (left == null) { return; }
		left.setBackground(color);
		middle.setBackground(color);
		right.setBackground(color);
	}

	public void addButton(int pos, JButton button) {
		JPanel p = null;
		switch (pos) {
			case LEFT: 		p = left; break;
			case MIDDLE: 	p = middle; break;
			case RIGHT: 	p = right; break;
		}

		if (p != null) {
			p.add(button);
			//p.setVisible(true);
		}
			
	}
}