Using static void (name here) when drawing.

You have a spurious method declaration inside your paintComponent method.

protected void paintComponent(Graphics g){

super.paintComponent( g );

static void drawCircle() {

int x = frame.getWidth() / 2;

int y = frame.getHeight() / 2;

import java.awt.Color;

import java.awt.Graphics;

import javax.swing.JPanel;

import javax.swing.JFrame;

public class SpiralTest

{

public static void main( String args[] )

{

Spiral panel = new Spiral();

JFrame application = new JFrame();

application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );

application.add( panel );

application.setSize( 230, 250 );

application.setVisible( true );

}

}

class Spiral extends JPanel {

protected void paintComponent(Graphics g) {

super.paintComponent( g );

// This method declaration doesn't belong here.

//static void drawCircle() {

// Use the size of this component. If you use the frames

// size you will have to deal with the frame insets. To

// access the frame you may need to call getParent one or

// more times, something like this:

//contentPane = this.getParent()

//rootPane = contentPane.getParent()

//frame = rootPane.getParent()

// or pass in a reference to the frame.

int x = //frame.getWidth() / 2;

getWidth()/2;

int y = //frame.getHeight() / 2;

getHeight()/2;

// This method supplies the graphics context.

//Graphics g = frame.getGraphics();

// Draw your maze with this graphics context.

drawMaze(g);

double radius = 0.1;

for (int i = 0; i < (360 * 5); i += 10) {

int tX = (int)(Math.cos(Math.toRadians(i)) * radius) + x;

int tY = (int)(Math.sin(Math.toRadians(i)) * radius) + y;

g.drawLine(x, y, tX, tY);

x = tX;

y = tY;

radius += 0.1;

}

}

// The static modifier may not be helpful here.

private void drawMaze(Graphics g) {

int x = //frame.getWidth() / 2;

getWidth()/2;

int y = //frame.getHeight() / 2;

getHeight()/2;

int width = 15;

int height = 15;

// Use the one supplied by paintComponent.

//Graphics g = frame.getGraphics();

int step = 0;

for (int i = 1; i < 15; i++) {

switch (step) {

case 0: //down

g.drawLine(x, y, x, y + (i * height));

y += i * height;

break;

case 1: //left

g.drawLine(x, y, x - (i * width), y);

x -= i * width;

break;

case 2: //up

g.drawLine(x, y, x, y - (i * height));

y -= i * height;

break;

case 3: //right

g.drawLine(x, y, x + (i * width), y);

x += i * width;

break;

}

step = ((step + 1) % 4);

}

}

}

crwooda at 2007-7-12 3:36:12 >