Java Swing按钮颜色 [英] Java Swing button colors

问题描述

我正在使用NET Beans IDE在LINUX中开发我的应用程序。我使用synthetica包来产生新的外观和感觉。一切都很顺利。

I am using NET Beans IDE for developing my application in LINUX. I have used synthetica package to generate new look and feel. All is well till now.

现在我的下一个阶段是在某些数据库状态发生变化时为按钮添加颜色。

Now my next stage is to add colors to buttons when some database status changes.

例如：

在一家餐馆我有2张桌子，当有8个人进来用餐时，我会在我的软件中创建2个桌子，因为人们无人看管我希望这两个表的按钮是绿色的。处理任何这些表的订单时，处理表的按钮颜色应更改为橙色。当它处理时它应该是闪烁的颜色。如何在java中执行此操作？我将负责数据库更新我只想知道如何更改按钮的颜色和添加闪烁技术。

In a restaurant i have 2 tables and when 8 people came in to dine and i will create 2 table in my software since the people are unattended i want the buttons to those 2 tables to be green. When the order is processed for any of those tables the button color of the processed table should be changed to orange. When it is under processing it should be flashing color. How to do this in java ? I will take care of database update i just want to know how to change the colors of the buttons and adding flashing technique.

推荐答案

以下是与闪存组件相关的问题和几个答案。

Here is a question and several answers related to flashing a component.

附录：您可以在文章 如何使用按钮中了解更多信息 。特别是，您可以使用 setForeground（）来更改按钮文本的颜色，但相应的 setBackground（）在某些平台上读得不好。使用 Border 是另一种选择;如下所示，彩色面板是另一个。

Addendum: You can learn more in the article How to Use Buttons. In particular, you can use setForeground() to change the color of a button's text, but the corresponding setBackground() doesn't read well on some platforms. Using a Border is one alternative; a colored panel, shown below, is another.

package overflow;

import java.awt.Color;
import java.awt.EventQueue;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;

public class ButtonTest extends JPanel implements ActionListener {

    private static final int N = 4;
    private static final Random rnd = new Random();
    private final Timer timer = new Timer(1000, this);
    private final List<ButtonPanel> panels = new ArrayList<ButtonPanel>();

    public ButtonTest() {
        this.setLayout(new GridLayout(N, N, N, N));
        for (int i = 0; i < N * N; i++) {
            ButtonPanel bp = new ButtonPanel(i);
            panels.add(bp);
            this.add(bp);
        }
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        for (JPanel p : panels) {
            p.setBackground(new Color(rnd.nextInt()));
        }
    }

    private static class ButtonPanel extends JPanel {

        public ButtonPanel(int i) {
            this.setBackground(new Color(rnd.nextInt()));
            this.add(new JButton("Button " + String.valueOf(i)));
        }
    }

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {

            @Override
            public void run() {
                JFrame f = new JFrame("ButtonTest");
                f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                ButtonTest bt = new ButtonTest();
                f.add(bt);
                f.pack();
                f.setLocationRelativeTo(null);
                f.setVisible(true);
                bt.timer.start();
            }
        });
    }
}

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