Why I cannot Move my JLabel after I add SetToolTipText()?

Thanks, according to your suggestion, I did following, not know why not work, not sure is correct way or not, please advice right way to solve it.

import java.awt.*;

import java.awt.event.*;

import java.util.Vector;

import javax.swing.*;

import javax.swing.border.LineBorder;

import javax.swing.event.*;

public class DNDJLabels extends JPanel{

protected JLabel label1, label2, label3, label4;

protected JLabel[] labels;

protected JLabel selectedLabel;

protected Point offsetP = new Point();

protected boolean dragging;

LineBorder black = new LineBorder(Color.black, 3, false);

int cx, cy;

protected Vector order = new Vector();

public static void main(String[] args){

JFrame f = new JFrame("DNDJLabels");

f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

f.getContentPane().add(new DNDJLabels());

f.setSize(600,700);

f.setLocation(200,200);

f.setVisible(true);

}

public DNDJLabels (){

setLayout(null);

addLabels();

label1.setBounds( 125, 150, 150, 60);

label2.setBounds(425, 150, 150, 60);

label3.setBounds( 125, 575, 150, 60);

label4.setBounds(425, 575, 150, 60);

label1.setBorder(black);

label2.setBorder(black);

label3.setBorder(black);

label4.setBorder(black);

//add(btn);

label1.setToolTipText("AAAAAAAA");

label1.addMouseListener(new MouseListener() {

public void mouseDown(MouseEvent e) {

}

public void mouseClicked(MouseEvent e) {

}

public void mouseEntered(MouseEvent e) {

}

public void mouseExited(MouseEvent e) {

}

public void mouseDragged(MouseEvent e){

Rectangle r = selectedLabel.getBounds();

r.x = e.getX() - offsetP.x;

r.y = e.getY() - offsetP.y;

selectedLabel.setBounds(r.x, r.y, r.width, r.height);

//determineCenterOfComponents();

repaint();

}

public void mousePressed(MouseEvent e) {

Point p = e.getPoint();

dragging=true;

for(int i = 0; i < labels.length; i++){

Rectangle r = labels[i].getBounds();

if(r.contains(p)){

selectedLabel = labels[i];

order.addElement(labels[i]);

offsetP.x = p.x - r.x;

offsetP.y = p.y - r.y;

dragging = true;

repaint(); //added

break;

}

}

}

public void mouseReleased(MouseEvent e) {

}

public void mouseDoubleClick(MouseEvent e) {

}

});

determineCenterOfComponents();

ComponentMover mover = new ComponentMover();

addMouseListener(mover);

addMouseMotionListener(mover);

}

public void paintComponent(final Graphics g){

super.paintComponent(g);

Graphics2D g2 = (Graphics2D)g;

g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);

Point[] p;

g2.setStroke(new BasicStroke(4f));

for(int i = 0 ; i < order.size()-1; i++) {

JLabel l1 = (JLabel)order.elementAt(i);

JLabel l2 = (JLabel)order.elementAt(i+1);

p = getCenterPoints(l1, l2);

g2.setColor(Color.black);

//g2.draw(new Line2D.Double(p[0], p[1]));

}

}

private Point[] getCenterPoints(Component c1, Component c2){

Pointp1 = new Point(),p2 = new Point();

Rectangler1 = c1.getBounds(),

r2 = c2.getBounds();

p1.x = r1.x + r1.width/2;

p1.y = r1.y + r1.height/2;

p2.x = r2.x + r2.width/2;

p2.y = r2.y + r2.height/2;

return new Point[] {p1, p2};

}

private void determineCenterOfComponents(){

intxMin = Integer.MAX_VALUE, yMin = Integer.MAX_VALUE, xMax = 0,yMax = 0;

for(int i = 0; i < labels.length; i++){

Rectangle r = labels[i].getBounds();

if(r.x < xMin)xMin = r.x;

if(r.y < yMin)yMin = r.y;

if(r.x + r.width > xMax)xMax = r.x + r.width;

if(r.y + r.height > yMax)yMax = r.y + r.height;

}cx = xMin + (xMax - xMin)/2;

cy = yMin + (yMax - yMin)/2;

}

private class ComponentMover extends MouseInputAdapter{

public void mousePressed(MouseEvent e){

Point p = e.getPoint();

for(int i = 0; i < labels.length; i++){

Rectangle r = labels[i].getBounds();

if(r.contains(p)){

selectedLabel = labels[i];

order.addElement(labels[i]);

offsetP.x = p.x - r.x;

offsetP.y = p.y - r.y;

dragging = true;

repaint(); //added

break;

}

}

}

public void mouseReleased(MouseEvent e){ }

public void mouseDragged(MouseEvent e){

Rectangle r = selectedLabel.getBounds();

r.x = e.getX() - offsetP.x;

r.y = e.getY() - offsetP.y;

selectedLabel.setBounds(r.x, r.y, r.width, r.height);

//determineCenterOfComponents();

repaint();

}

}

private void addLabels(){

label1 = new JLabel("Label 1");

label2 = new JLabel("Label 2");

label3 = new JLabel("Label 3");

label4 = new JLabel("Label 4");

labels = new JLabel[] {

label1, label2, label3, label4

};

//add(btn);

for(int i = 0; i < labels.length; i++) {

labels[i].setHorizontalAlignment(SwingConstants.CENTER);

labels[i].setBorder(BorderFactory.createEtchedBorder());

add(labels[i]);

}

}

}

sunnysunnygirla at 2007-7-28 18:42:20 >