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package graphics_activity01;
import javax.media.opengl.GL2;
import javax.media.opengl.GLAutoDrawable;
import javax.media.opengl.GLEventListener;
import javax.media.opengl.awt.GLCanvas;
import javax.media.opengl.glu.GLU;
import javax.swing.JFrame;
import com.jogamp.newt.event.KeyEvent;
import com.jogamp.newt.event.KeyListener;
import com.sun.opengl.util.Animator;
public class Activity01 extends JFrame implements GLEventListener, KeyListener {
GLCanvas canvas;
Animator an;
public Activity01() {
super("KeyListener Activity");
canvas = new GLCanvas();
an = new Animator(canvas);
add(canvas);
canvas.addGLEventListener(this);
canvas.setFocusable(true);
canvas.addKeyListener(this);
setSize(800, 500);
setVisible(true);
setLocationRelativeTo(null);
an.start();
canvas.requestFocus();
}
public void init(GLAutoDrawable drawable) {
GL2 gl = drawable.getGL().getGL2();
GLU glu = new GLU();
gl.glClearColor(0f, 0f, 0f, 0.0f);
gl.glMatrixMode(GL2.GL_PROJECTION);
glu.gluOrtho2D(-400, 400, -250, 250);
gl.glMatrixMode(GL2.GL_MODELVIEW);
}
boolean firstRun = true;
public void display(GLAutoDrawable drawable) {
/**
GL2 gl = drawable.getGL().getGL2();
gl.glClear(GL2.GL_COLOR_BUFFER_BIT);
float[] color = {0.5f,0.0f,0.0f};
gl.glColor3fv(color ,0);
gl.glPointSize(50);
gl.glBegin(GL2.GL_POINTS);
gl.glVertex2i(100, 100);
gl.glVertex2i(-100, 100);
gl.glVertex2i(100, -100);
gl.glVertex2i(-100, -100);
gl.glVertex2i(0,0);
gl.glEnd();
**/
}
public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
}
public void dispose(GLAutoDrawable drawable) {
}
public static void main(String[] ar) {
new Activity01();
}
@Override
public void keyPressed(KeyEvent e) {
char pressed = e.getKeyChar();
if (pressed == 'a') {
System.out.println('a');
}
}
@Override
public void keyReleased(KeyEvent arg0) {
}
}
This is my code but it gives me an error when I try to register the canvas for the KeyListener. Is this the right way?
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