awt label 透明与圆角 请高手给出一个例子,把awt label做成透明的,背景是黑色,前景是白色,并且这个label具有圆角。 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 package vehicleMap;import javax.swing.*;import java.awt.geom.Point2D;import java.awt.*;/** * a JLabel with an alpha component * @author Tom Brunet, Barry Feigenbaum */public class TransparentLabel extends JLabel { private float alpha; public TransparentLabel(String str, float alpha) { this(str, null, JLabel.LEFT, alpha); } public TransparentLabel(String str, int align, float alpha) { this(str, null, align, alpha); } public TransparentLabel(String str, Icon icon, int align, float alpha) { super(str, icon, align); this.alpha = alpha; } /** override to add aplha composite */ public void paintComponent(Graphics g) { ((Graphics2D) g).setComposite(AlphaComposite.getInstance( AlphaComposite.SRC_OVER, alpha)); super.paintComponent(g); }} File rename 之后的true与false的问题(问题在代码中) 程序探讨 对菜单中按钮加监听~在线等 笨笨的程序求救....!! javascript中如何捕捉到Applet中的事件? JAVA帮助文档 一个有意思的JAVA问题,还请大家帮帮忙 关于CVS的设置 关于用jbuilder5开发bean管理实体bean的问题,请大家帮帮忙!!!! andriod 让一个APP里面只有一个Activity运行 我做毕业设计遇到了点问题,急 ArrayList里方法的问题
import java.awt.geom.Point2D;
import java.awt.*;/**
* a JLabel with an alpha component
* @author Tom Brunet, Barry Feigenbaum
*/
public class TransparentLabel extends JLabel {
private float alpha; public TransparentLabel(String str, float alpha) {
this(str, null, JLabel.LEFT, alpha);
} public TransparentLabel(String str, int align, float alpha) {
this(str, null, align, alpha);
} public TransparentLabel(String str, Icon icon, int align, float alpha) {
super(str, icon, align);
this.alpha = alpha;
} /** override to add aplha composite */
public void paintComponent(Graphics g) {
((Graphics2D) g).setComposite(AlphaComposite.getInstance(
AlphaComposite.SRC_OVER, alpha));
super.paintComponent(g);
}
}