rezise shape

hi,

I am trying to compile this example:

import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.geom.Rectangle2D;

import javax.swing.JFrame;
import javax.swing.JPanel;

public class ResizeRectangle extends JPanel {
private int SIZE = 8;
private Rectangle2D[] points = { new Rectangle2D.Double(50, 50,SIZE, SIZE), new Rectangle2D.Double(150, 100,SIZE, SIZE) };
Rectangle2D s = new Rectangle2D.Double();

ShapeResizeHandler ada = new ShapeResizeHandler();

public ResizeRectangle() {
addMouseListener(ada);
addMouseMotionListener(ada);
}

public void paintComponent(Graphics g) {
super.paintComponent(g);

Graphics2D g2 = (Graphics2D) g;

for (int i = 0; i < points.length; i++) {
g2.fill(points[i]);
}
s.setRect(points[0].getCenterX(), points[0].getCenterY(),
Math.abs(points[1].getCenterX()-points[0].getCenterX()),
Math.abs(points[1].getCenterY()- points[0].getCenterY()));

g2.draw(s);
}

class ShapeResizeHandler extends MouseAdapter {
Rectangle2D r = new Rectangle2D.Double(0,0,SIZE,SIZE);
private int pos = -1;
public void mousePressed(MouseEvent event) {
Point p = event.getPoint();

for (int i = 0; i < points.length; i++) {
if (points[i].contains(p)) {
pos = i;
return;
}
}
}

public void mouseReleased(MouseEvent event) {
pos = -1;
}

public void mouseDragged(MouseEvent event) {
if (pos == -1)
return;

points[pos].setRect(event.getPoint().x,event.getPoint().y,poi nts[pos].getWidth(),
points[pos].getHeight());
repaint();
}
}

public static void main(String[] args) {

JFrame frame = new JFrame("Resize Rectangle");

frame.add(new ResizeRectangle());
frame.setSize(300, 300);
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOS E);
frame.setVisible(true);
}
}

But always get this error:

ResizeRectangle.java:20: addMouseMotionListener(java.awt.event.MouseMotionL istener) in java.awt.Component cannot be applied to (ResizeRectangle.ShapeResizeHandler)
addMouseMotionListener(ada);
^
1 error


Any idea?

regards

Your code compiles and runs for me. I'm not sure why you're getting this error.

Hi,

mmm did you compile the code in a standar way?, i mean:

javac ResizeRectangle.java

could be my version of java, i am using leopard my version of java is:

java version "1.5.0_19"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_19-b02-304)
Java HotSpot(TM) Client VM (build 1.5.0_19-137, mixed mode, sharing)

what is your version?

regards

I used a Java 1.6 compliant compiler, but when I recompiled with 1.5 compliance, it still worked fine.

Which line is throwing the error? One of these in the constructor?

Code:

---

  public ResizeRectangle() {
    addMouseListener(ada);
    addMouseMotionListener(ada);
  }

---

yes, i got the error in line number 20 in the constructor, wich is:

addMouseMotionListener(ada);

Hm, re-write, and recompile. This is the code that I used:

Code:

---

import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.geom.Rectangle2D;

import javax.swing.JFrame;
import javax.swing.JPanel;

public class ResizeRectangle extends JPanel {
  private int SIZE = 8;
  private Rectangle2D[] points = { new Rectangle2D.Double(50, 50, SIZE, SIZE),
      new Rectangle2D.Double(150, 100, SIZE, SIZE) };
  Rectangle2D s = new Rectangle2D.Double();

  ShapeResizeHandler ada = new ShapeResizeHandler();

  public ResizeRectangle() {
    addMouseListener(ada);
    addMouseMotionListener(ada);
  }

  public void paintComponent(Graphics g) {
    super.paintComponent(g);

    Graphics2D g2 = (Graphics2D) g;

    for (int i = 0; i < points.length; i++) {
      g2.fill(points[i]);
    }
    s.setRect(points[0].getCenterX(), points[0].getCenterY(), Math
        .abs(points[1].getCenterX() - points[0].getCenterX()), Math
        .abs(points[1].getCenterY() - points[0].getCenterY()));

    g2.draw(s);
  }

  class ShapeResizeHandler extends MouseAdapter {
    Rectangle2D r = new Rectangle2D.Double(0, 0, SIZE, SIZE);
    private int pos = -1;
    public void mousePressed(MouseEvent event) {
      Point p = event.getPoint();

      for (int i = 0; i < points.length; i++) {
        if (points[i].contains(p)) {
          pos = i;
          return;
        }
      }
    }

    public void mouseReleased(MouseEvent event) {
      pos = -1;
    }

    public void mouseDragged(MouseEvent event) {
      if (pos == -1)
        return;

      points[pos].setRect(event.getPoint().x, event.getPoint().y, points[pos]
          .getWidth(), points[pos].getHeight());
      repaint();
    }
  }

  public static void main(String[] args) {

    JFrame frame = new JFrame("Resize Rectangle");

    frame.add(new ResizeRectangle());
    frame.setSize(300, 300);
    frame.setLocationRelativeTo(null);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);
  }
}

---