55 lines
1.2 KiB
Java
55 lines
1.2 KiB
Java
|
Drawing using the Mouse
|
||
|
|
|
||
|
|
public class MousePaint extends Frame implements MouseMotionListener
|
||
|
|
{
|
||
|
|
private int x1, y1, x2, y2;
|
||
|
|
public MousePaintII()
|
||
|
|
{
|
||
|
|
addWindowListener(new WindowAdapter()
|
||
|
|
{
|
||
|
|
public void windowClosing(WindowEvent we)
|
||
|
|
{
|
||
|
|
dispose();
|
||
|
|
System.exit(0);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
addMouseMotionListener(this);
|
||
|
|
setBounds(50,50,400,250);
|
||
|
|
setVisible(true);
|
||
|
|
}
|
||
|
|
public static void main(String[] argv)
|
||
|
|
{
|
||
|
|
new MousePaintII();
|
||
|
|
}
|
||
|
|
public void update(Graphics g)
|
||
|
|
{
|
||
|
|
paint(g);
|
||
|
|
}
|
||
|
|
public void paint(Graphics g)
|
||
|
|
{
|
||
|
|
g.setColor(Color.black);
|
||
|
|
g.drawLine(x1, y1, x2, y2);
|
||
|
|
}
|
||
|
|
public void mouseDragged(MouseEvent me)
|
||
|
|
{
|
||
|
|
me.consume();
|
||
|
|
int x = me.getX();
|
||
|
|
int y = me.getY();
|
||
|
|
if ( x1 == 0 )
|
||
|
|
{
|
||
|
|
x1 = x;
|
||
|
|
}
|
||
|
|
if ( y1 == 0 )
|
||
|
|
{
|
||
|
|
y1 = y;
|
||
|
|
}
|
||
|
|
x2 = x;
|
||
|
|
y2 = y;
|
||
|
|
repaint();
|
||
|
|
x1 = x2;
|
||
|
|
y1 = y2;
|
||
|
|
}
|
||
|
|
public void mouseMoved(MouseEvent me)
|
||
|
|
{ }
|
||
|
|
}
|