P38 Border边框

系统：Win10
Java：1.8.0_333
IDEA：2020.3.4
Gitee：https://gitee.com/lijinjiang01/JavaSwing

1.概述

Border：边框。边框是对组件边界的装饰，例如为组件增加矩形有色边框，为透明的容器增加带标题的边框，增加组件的内边距，为组件增加浮雕化/凹凸斜面/阴影外观等，让组件看起来更美观。
组件边框的设置:

// 创建边框
Border border = BorderFactory.createXxxxBorder(...);
// 设置组件的边框
component.setBorder(border);
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创建组件边框，使用 BorderFactory 工厂类中的静态方法窗口，支持许多各种不同形式的边框。

2.边框的创建

常用边框的创建（BorderFactory 中的静态方法）

2.1 空边框

// 创建一个不占用空间的空边控（边界宽度均为0）
static Border createEmptyBorder();

// 创建一个占用空间但不绘制的空边框，指定四条边占用的宽度（内边距效果）
static Border createEmptyBorder(int top, int left, int bottom, int right);
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2.2 线边框

/**
 * 参数说明:
 *     color: 线条颜色
 *     thickness: 线宽（默认为1px）
 *     rounded: 是否有圆角
 */
static Border createLineBorder(Color color);

static Border createLineBorder(Color color, int thickness);

static Border createLineBorder(Color color, int thickness, boolean rounded);
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2.3 标题边框

/**
 * 参数说明:
 *     border: 在此边框基础上添加标题，可以传 null
 *     
 *     title: 需要添加的标题
 *     
 *     titleJustification: 标题对齐方式，该值为一下之一:
 *         TitledBorder.LEFT
 *         TitledBorder.CENTER
 *         TitledBorder.RIGHT
 *         TitledBorder.LEADING
 *         TitledBorder.TRAILING
 *         TitledBorder.DEFAULT_JUSTIFICATION (leading)
 *         
 *     titlePosition: 标题显示的位置（相对于边框的纵向位置），该值为一下之一:
 *         TitledBorder.ABOVE_TOP
 *         TitledBorder.TOP（位于顶线上）
 *         TitledBorder.BELOW_TOP
 *         TitledBorder.ABOVE_BOTTOM
 *         TitledBorder.BOTTOM（位于底线上）
 *         TitledBorder.BELOW_BOTTOM
 *         TitledBorder.DEFAULT_POSITION（顶部）
 *         
 *     titleFont: 标题的字体
 *     
 *     titleColor: 标题的颜色
 */
static TitledBorder createTitledBorder(String title);

static TitledBorder createTitledBorder(Border border);

static TitledBorder createTitledBorder(Border border, String title);

static TitledBorder createTitledBorder(Border border, String title, int titleJustification, int titlePosition);

static TitledBorder createTitledBorder(Border border, String title, int titleJustification, int titlePosition, Font titleFont);

static TitledBorder createTitledBorder(Border border, String title, int titleJustification, int titlePosition, Font titleFont, Color titleColor);
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2.4 其他边框

// 斜面边框
static Border createBevelBorder(...);
// 虚线边框
static Border createDashedBorder(...);
// “浮雕化”边框
static Border createEtchedBorder(...);
// 凹入斜面边缘的边框
static Border createLoweredBevelBorder(...);
// 具有凸出斜面边缘的边框
static Border createRaisedBevelBorder(...);
// 凸起软斜面
static Border createRaisedSoftBevelBorder(...);
// 合成边框
static CompoundBorder createCompoundBorder(...);
// 类似衬边的边框
static MatteBorder createMatteBorder(...);
// 共享斜面边框
static Border createSharedBevel(...)
// 软斜面边框
static Border createSoftBevelBorder(...);
// 画笔边框
static Border createStrokeBorder(...);
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3.代码实例

import com.lijinjiang.beautyeye.BeautyEyeLNFHelper;
import javax.swing.*;
import javax.swing.border.Border;
import javax.swing.border.TitledBorder;
import java.awt.*;

public class Demo01 {
    public static void main(String[] args) {
        try {
            BeautyEyeLNFHelper.frameBorderStyle = BeautyEyeLNFHelper.FrameBorderStyle.generalNoTranslucencyShadow;
            BeautyEyeLNFHelper.launchBeautyEyeLNF();
        } catch (Exception e) {
            e.printStackTrace();
        }
        JFrame frame = new JFrame("Demo01");

        JPanel contentPane = new JPanel();
        contentPane.setLayout(new GridLayout(2, 4, 25, 25));

        JPanel panel1 = new JPanel();
        panel1.setBorder(BorderFactory.createLineBorder(Color.RED, 3));
        panel1.add(new JLabel("线边框"));
        contentPane.add(panel1);

        JPanel panel2 = new JPanel();
        panel2.setBorder(BorderFactory.createEtchedBorder());
        panel2.add(new JLabel("刻蚀边框"));
        contentPane.add(panel2);

        JPanel panel3 = new JPanel();
        panel3.setBorder(BorderFactory.createRaisedBevelBorder());
        panel3.add(new JLabel("斜面边框（凸）"));
        contentPane.add(panel3);

        JPanel panel4 = new JPanel();
        panel4.setBorder(BorderFactory.createLoweredBevelBorder());
        panel4.add(new JLabel("斜面边框（凹）"));
        contentPane.add(panel4);

        JPanel panel5 = new JPanel();
        panel5.setBorder(BorderFactory.createTitledBorder("标题"));
        panel5.add(new JLabel("标题边框"));
        contentPane.add(panel5);

        JPanel panel6 = new JPanel();
        TitledBorder rightTitle = BorderFactory.createTitledBorder("标题");
        rightTitle.setTitleJustification(TitledBorder.RIGHT);
        panel6.setBorder(rightTitle);
        panel6.add(new JLabel("标题边框（右）"));
        contentPane.add(panel6);

        JPanel panel7 = new JPanel();
        panel7.setBorder(BorderFactory.createMatteBorder(2, 15, 2, 2, Color.ORANGE));
        panel7.add(new JLabel("花色边框"));
        contentPane.add(panel7);

        JPanel panel8 = new JPanel();
        Border border1 = BorderFactory.createLineBorder(Color.GREEN, 3);
        Border border2 = BorderFactory.createTitledBorder("标题");
        panel8.setBorder(BorderFactory.createCompoundBorder(border1, border2));
        panel8.add(new JLabel("组合边框"));
        contentPane.add(panel8);

        frame.setContentPane(contentPane);
        frame.setSize(760, 400);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }
}
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4.效果演示