swing的布局

最新推荐文章于 2025-08-14 15:57:42 发布

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最新推荐文章于 2025-08-14 15:57:42 发布

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分类专栏： java基础文章标签： java swing界面设计

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本文介绍了Java Swing中各种边框的使用方法，包括LineBorder、MatteBorder、BevelBorder、SoftBevelBorder、EtchedBorder和CompoundBorder等。通过示例代码展示了如何为Swing组件设置不同类型的边框。

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1 例子代码与结果

package xjtu.vf.swing;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.GridLayout;

import javax.swing.*;
import javax.swing.border.*;

public class Borders extends JFrame {
static JPanel showBorder(Border b) {
JPanel jp = new JPanel();
jp.setLayout(new BorderLayout());
String mm = b.getClass().toString();
mm = mm.substring(mm.lastIndexOf(‘.’) + 1);
jp.add(new JLabel(mm, JLabel.CENTER), BorderLayout.CENTER);
jp.setBorder(b);
return jp;
}

public Borders() {
    setLayout(new GridLayout(2, 4));
    add(showBorder(new TitledBorder("Title")));
    add(showBorder(new EtchedBorder()));
    add(showBorder(new LineBorder(Color.blue)));
    add(showBorder(new MatteBorder(5, 5, 30, 30, Color.GREEN)));
    add(showBorder(new BevelBorder(BevelBorder.RAISED)));
    add(showBorder(new SoftBevelBorder(BevelBorder.LOWERED)));
    add(showBorder(new CompoundBorder(new EtchedBorder(), new LineBorder(
            Color.RED))));
}

public static void main(String[] args) {
    SwingConsole.run(new Borders(), 500, 300);
}

}

2 javax.swing.border

AbstractBorder所有边框类的父类

3 BorderFactory

使用工厂设计模式快速设计边框，隐藏创建细节。

4 LineBorder

LineBorder是围绕组件周围用户义定宽度的单色行边框。他可以具有方角或是圆角。
LineBorder有三个构造函数，两个工厂方法以及两个BorderFactory工厂方法

public LineBorder(Color color)
Border lineBorder = new LineBorder (Color.RED);

public LineBorder(Color color, int thickness)
Border lineBorder = new LineBorder (Color.RED, 5);

public LineBorder (Color color, int thickness, boolean roundedCorners)
Border lineBorder = new LineBorder (Color.RED, 5, true);

public static Border createBlackLineBorder()
Border blackLine = LineBorder.createBlackLineBorder();

public static Border createGrayLineBorder()
Border grayLine = LineBorder.createGrayLineBorder();

public static Border createLineBorder(Color color)
Border lineBorder = BorderFactory.createLineBorder(Color.RED);

public static Border createLineBorder(Color color, int thickness)
Border lineBorder = BorderFactory.createLineBorder(Color.RED, 5);
5 MatteBorder

如果我们希望修改不同边的粗细，我们需要使用MatteBorder，

MatteBorder(Icon tileIcon)
Creates a matte border with the specified tile icon.
MatteBorder(Insets borderInsets, Color matteColor)
Creates a matte border with the specified insets and color.
MatteBorder(Insets borderInsets, Icon tileIcon)
Creates a matte border with the specified insets and tile icon.
MatteBorder(int top, int left, int bottom, int right, Color matteColor)
Creates a matte border with the specified insets and color.
MatteBorder(int top, int left, int bottom, int right, Icon tileIcon)
Creates a matte border with the specified insets and tile icon.
6 TitleBorder

7 BevelBorder

BevelBorder以三维外观绘制边框，其可以表现为升起或是降低。当边框升起时，在边框的底部与右边会出现阴影效果。当降低时，阴影的位置会相反。
BevelBorder有三个构造函数以及一个工厂方法，同时还有BorderFactory创建BevelBorder对象的五个工厂方法：

public BevelBorder(int bevelType)
Border bevelBorder = new BevelBorder(BevelBorder.RAISED);

public BevelBorder(int bevelType, Color highlight, Color shadow)
Border bevelBorder = new BevelBorder(BevelBorder.RAISED, Color.PINK, Color.RED);

public BevelBorder(int bevelType, Color highlightOuter, Color highlightInner,
Color shadowOuter, Color shadowInner)
Border bevelBorder = new BevelBorder(BevelBorder.RAISED, Color.PINK,
Color.PINK.brighter(), Color.RED, Color.RED.darker());

public static Border createBevelBorder(int bevelType)
Border bevelBorder = BorderFactory.createBevelBorder(BevelBorder.RAISED);

public static Border createLoweredBevelBorder()
Border bevelBorder = BorderFactory.createLoweredBevelBorder();

public static Border createRaisedBevelBorder()
Border bevelBorder = BorderFactory.createRaisedBevelBorder();

public static Border createBevelBorder(int bevelType, Color highlight, Color shadow)
Border bevelBorder = BorderFactory.createBevelBorder(BevelBorder.RAISED,
Color.PINK, Color.RED);

public static Border createBevelBorder(int bevelType, Color highlightOuter,
Color highlightInner, Color shadowOuter, Color shadowInner)
Border bevelBorder = BorderFactory.createBevelBorder(BevelBorder.RAISED,
Color.PINK, Color.PINK.brighter(), Color.RED, Color.RED.darker());
8 SoftBevelBorder

oftBevelBorder是BevelBorder的近亲。这个组件会包围四角，所以他们的边并不尖利。
而他使用下边与右边的相应外边颜色只绘制一条线。
SoftBevelBorder有三个构造函数：

public SoftBevelBorder(int bevelType)
Border softBevelBorder = new SoftBevelBorder(SoftBevelBorder.RAISED);

public SoftBevelBorder(int bevelType, Color highlight, Color shadow)
Border softBevelBorder = new SoftBevelBorder(SoftBevelBorder.RAISED, Color.RED,
Color.PINK);

SoftBevelBorder(int bevelType, Color highlightOuterColor, Color highlightInnerColor, Color shadowOuterColor, Color shadowInnerColor)
9 EtchedBorder

建立一个四周有凹痕的边界，也可以指定突边与阴影的颜色.

10 CompoundBorder

建立一个复合边界，并可以指定它的内外边界