необходимо, что бы при движении мыши прямая линия тянулась за курсором
| Код |
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.awt.geom.*;
import javax.swing.*;
public class Draw_Line
{
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
MouseFrame frame = new MouseFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
});
}
}
class MouseFrame extends JFrame
{
public static final int DEFAULT_WIDTH = 500;
public static final int DFAULT_HEIGHT = 500;
public MouseFrame()
{
setTitle("MouseTest");
setSize(DEFAULT_WIDTH, DFAULT_HEIGHT);
MouseComponent component = new MouseComponent();
add(component);
}
}
class MouseComponent extends JComponent
{
int yLast,xLast=250;
int click=1;
Dimension size = new Dimension(getSize(getMaximumSize()));
int first = (int)size.getHeight()/2;
public MouseComponent()
{
addMouseListener(new MouseHandler());
addMouseMotionListener(new MouseMotionHandler());
}
private class MouseHandler extends MouseAdapter
{
public void mousePressed(MouseEvent e)
{
Graphics g = getGraphics();
Graphics2D g2 = (Graphics2D)g;
int x = e.getX(), y = e.getY();
g2.drawLine(xLast,yLast,x,y);
xLast = x;
yLast = y;
}
}
private class MouseMotionHandler implements MouseMotionListener
{
public void mouseMoved(MouseEvent event)
{
}
public void mouseDragged(MouseEvent event)
{
Graphics g = getGraphics();
Graphics2D g3 = (Graphics2D)g;
int x = event.getX(), y = event.getY();
g3.drawLine(xLast,yLast,x,y);
xLast = x;
yLast = y;
}
}
}
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