我正在尝试获取鼠标相对于窗口的坐标。 我知道我需要引用 JFrame 或其他东西,但我一生都无法弄清楚如何,我的类(class)为我提供了这个初学者代码,我已经从那里构建了它。
public class TheGame extends JFrame
{
public static final int WIDTH = 785;
public static final int HEIGHT = 670;
public static int width;
public static int height;
public static int borderX;
public static int borderY;
public TheGame()
{
super("PLATFORMGAME");
setSize(WIDTH,HEIGHT);
PlatformGame game = new PlatformGame();
((Component)game).setFocusable(true);
getContentPane().add(game);
setVisible(true);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public static void main( String args[] )
{
TheGame run = new TheGame();
}
}
这是我的鼠标监听器类:
public class mouse extends JFrame {
static Point p;
BufferedImage sprite;
public mouse() {
Point p = MouseInfo.getPointerInfo().getLocation();
try {
sprite = ImageIO.read(new File("mouse_pointer.png")) ;
} catch (IOException e1) {
e1.printStackTrace();
}
}
public Point getlocation() {
return p = MouseInfo.getPointerInfo().getLocation();
}
public static double getNorP(double uno, double dos) {
if ((uno - dos) > 0) {return -1;}
else {return 1;}
}
public static double getX(Char c) {
return MouseInfo.getPointerInfo().getLocation().x ;
//return MouseInfo.getPointerInfo().getLocation().x - ReferenceJFrame.getLocationOnScreen().x;
}
public static double getY(Char c) {
return MouseInfo.getPointerInfo().getLocation().y -29;
//return MouseInfo.getPointerInfo().getLocation().y - ReferenceJFrame.getLocationOnScreen().y;
}
public static double getXD(Char c) {
return Math.abs(c.rX-(double)getX(c));
}
public static double getYD(Char c) {
return Math.abs(c.rY-(double)getY(c));
}
// public static float getAngle(Point target,int x,int y) {
// return (float) Math.toDegrees(Math.atan2(getX()-x, getY()-y));
}
public static double getXP(Char c) {
return (getXD(c))/(getXD(c)+getYD(c)) * getNorP(c.rX,getX(c));
}
public static double getYP(Char c) {
return (getYD(c))/(getXD(c)+getYD(c)) * getNorP(c.rY,getY(c));
}
public void draw(Graphics window, Char c) {
window.drawImage(sprite,(int) getX(c)-16,(int) getY(c)-8, 16, 16, null);
}
}
这将返回鼠标相对于屏幕的坐标,但不返回相对于窗口的坐标。除了 JFrame 类型的东西之外,我了解相当多的 java 知识。
最佳答案
您可以使用 JFrame
的方法 getLocation()
返回一个 Point
对象。然后使用类似的东西:
mouseX = MouseInfo.getPointerInfo().getLocation().x - frame.getLocation().x;
mouseY = MouseInfo.getPointerInfo().getLocation().y - frame.getLocation().y;
在您的情况下, getMouseLocation() 方法如下所示:
public Point getMouseLocation(){
int x = MouseInfo.getPointerInfo().getLocation().x - run.getLocation().x;
int y = MouseInfo.getPointerInfo().getLocation().y - run.getLocation().y;
return new Point(x,y);
}
关于java - 如何获取相对于窗口而不是屏幕的鼠标坐标?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/35587039/