Java Swing实现类似QQ的停靠在桌面边缘时自动隐藏
2018-07-20 来源:open-open
Java Swing实现类似QQ的停靠在桌面边缘时自动隐藏
import java.awt.Point; import java.awt.Rectangle; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.event.MouseMotionAdapter; import javax.swing.JFrame; import javax.swing.Timer; public class HideFrame extends JFrame implements ActionListener{ private Rectangle rect; private int frameLeft;// 窗体离屏幕左边的距离 private int frameRight;// 窗体离屏幕右边的距离; private int frameTop;// 窗体离屏幕顶部的距离 private int frameWidth; // 窗体的宽 private int frameHeight; // 窗体的高 private int screenXX;// 屏幕的宽度; private Point point; // 鼠标在窗体的位置 private Timer timer = new Timer(10, this); private int xx, yy; private boolean isDraging = false; public HideFrame(){ timer.start(); setTitle("窗体在屏幕边缘隐藏演示"); setSize(400, 300); setUndecorated(true); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setAlwaysOnTop(true); addMouseListener(new MouseAdapter() { public void mousePressed(MouseEvent e) { isDraging = true; xx = e.getX(); yy = e.getY(); } public void mouseReleased(MouseEvent e) { isDraging = false; } }); addMouseMotionListener(new MouseMotionAdapter() { public void mouseDragged(MouseEvent e) { if (isDraging) { int left = getLocation().x; int top = getLocation().y; setLocation(left + e.getX() - xx, top + e.getY() - yy); repaint(); } } }); setVisible(true); } @Override public void actionPerformed(ActionEvent arg0) { frameLeft = getLocationOnScreen().x; frameTop = getLocationOnScreen().y; frameWidth = getWidth(); frameHeight = getHeight(); screenXX = java.awt.Toolkit.getDefaultToolkit().getScreenSize().width; frameRight =screenXX- frameLeft - frameWidth; // 获取窗体的轮廓 rect = new Rectangle(0, 0, frameWidth, frameHeight); // 获取鼠标在窗体的位置 point =getMousePosition(); if (frameLeft < 0 && isPtInRect(rect, point)) { setLocation(0, frameTop); // 隐藏在左边,鼠标指到后显示窗体; } else if (frameLeft > -5 && frameLeft < 5 && !(isPtInRect(rect, point))) { setLocation(frameLeft - frameWidth + 1, frameTop); // 窗体移到左边边缘隐藏到左边; } else if ((frameTop < 0 && frameLeft < 0) && isPtInRect(rect, point)) {// 窗体在左上角; setLocation(0, 0);// 窗口隐藏了,鼠标指到他,就显示出来; } else if ((frameTop > -5 && frameTop < 5) && (frameLeft > -5 && frameLeft < 5) && !(isPtInRect(rect, point))) { // 当窗体的上边框与屏幕的顶端的距离小于5时 , // 并且鼠标不再窗体上将窗体隐藏到屏幕的顶端 setLocation(frameLeft - frameWidth + 1, 1); } else if ((frameTop < 0) && isPtInRect(rect, point)) { setLocation(frameLeft, 0);// 窗口隐藏了,鼠标指到他,就显示出来; } else if (frameTop > -5 && frameTop < 5 && !(isPtInRect(rect, point))) { // 当窗体的上边框与屏幕的顶端的距离小于5时 , // 并且鼠标不再窗体上将窗体隐藏到屏幕的顶端 setLocation(frameLeft, 1 - frameHeight); } else if (frameRight < 0 && isPtInRect(rect, point)) { setLocation(screenXX - frameWidth + 1, frameTop);// 隐藏在右边,鼠标指到后显示; } else if (frameRight > -5 && frameRight < 5 && !(isPtInRect(rect, point))) { setLocation(screenXX - 1, frameTop); // 窗体移到屏幕右边边缘隐藏到右边; } else if (frameRight < 0 && frameTop < 0 && isPtInRect(rect, point)) {// 窗体在右上角; setLocation(screenXX - frameWidth + 1, 0);// 隐藏在右边,鼠标指到后显示; } else if ((frameRight > -5 && frameRight < 5) && (frameTop > -5 && frameTop < 5) && !(isPtInRect(rect, point))) { setLocation(screenXX - 1, 1); // 窗体移到屏幕右边边缘隐藏到右边; } } /** * 检测是否在矩形框内 * @param rect * @param point * @return */ public boolean isPtInRect(Rectangle rect, Point point) { if (rect != null && point != null) { int x0 = rect.x; int y0 = rect.y; int x1 = rect.width; int y1 = rect.height; int x = point.x; int y = point.y; return x >= x0 && x < x1 && y >= y0 && y < y1; } return false; } public static void main(String[] args){ HideFrame frame = new HideFrame(); } }
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