PaintTestpublic class PaintTest extends Applet
| Methods Summary |
|---|
| public void | paint(java.awt.Graphics g)
for (;;)
{
paintOnce(g);
try{Thread.sleep(250);}catch(InterruptedException e){}
}
| | public void | paintDial(int width, int height, java.awt.Graphics g)
g.setColor(Color.blue);
for (int i = 0; i < 60; i += 5)
{
int x = width/2 + (int) (9*width*Math.sin((Math.PI*(30-i))/30))/20;
int y = height/2 + (int) (9*height*Math.cos((Math.PI*(30-i))/30))/20;
g.fillOval(x-5 , y-5, 10, 10);
}
| | public void | paintHand(int sector, int full, int w, int h, java.awt.Graphics g, java.awt.Color c, int scale)
int x = w/2 + (int) (scale*w*Math.sin((Math.PI*(full-sector))/full))/20;
int y = h/2 + (int) (scale*h*Math.cos((Math.PI*(full-sector))/full))/20;
g.setColor(c);
g.drawLine(w/2, h/2, x, y);
| | public void | paintOnce(java.awt.Graphics g)
int h = size().height;
int w = size().width;
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
g.clearRect(0, 0, w, h);
paintDial(w, h, g);
paintHand(cal.get(Calendar.SECOND), 30, w, h, g, Color.red, 9);
paintHand(cal.get(Calendar.MINUTE), 30, w, h, g, Color.blue, 8);
paintHand(cal.get(Calendar.HOUR), 6, w, h, g, Color.green, 6);
// repaint();
|
|
