package test;

import com.jogamp.newt.event.MouseEvent;
import com.jogamp.newt.event.MouseListener;
import com.jogamp.newt.opengl.GLWindow;
import com.jogamp.opengl.GLCapabilities;
import com.jogamp.opengl.GLProfile;

public class Resize implements MouseListener{
 
    private final double[] startPos = new double[2];
    private final double[] startExt = new double[2];
    
    public static void main(String[] args) throws InterruptedException {
        new Resize();
        Thread.sleep(50000);
    }
    
    GLWindow glWindow;
    
    public Resize() {
        
       GLCapabilities glCapabilities = new GLCapabilities(GLProfile.getDefault());
       glWindow = GLWindow.create(glCapabilities);

       //attach listeners
       glWindow.addMouseListener(this);
       glWindow.setSize(400, 200);
       glWindow.setPosition(300, 300);
       glWindow.setVisible(true);
       
    }

    @Override
    public void mouseClicked(MouseEvent me) {
    }

    @Override
    public void mouseEntered(MouseEvent me) {
    }

    @Override
    public void mouseExited(MouseEvent me) {
    }

    @Override
    public void mousePressed(MouseEvent me) {
        startPos[0] = me.getX();
        startPos[1] = me.getY();
        startExt[0] = glWindow.getWidth();
        startExt[1] = glWindow.getHeight();
    }

    @Override
    public void mouseReleased(MouseEvent me) {
    }

    @Override
    public void mouseMoved(MouseEvent me) {
    }

    @Override
    public void mouseDragged(MouseEvent me) {
        double x = me.getX();
        double y = me.getY();
        double diffx = x- startPos[0];
        double diffy = y- startPos[1];

        glWindow.setSize(
                (int)(startExt[0]+diffx), 
                (int)(startExt[1]+diffy));
    }

    @Override
    public void mouseWheelMoved(MouseEvent me) {
    }
    
}