I'm creating an animation that looks like this.
I'd like the swirly icon on the left (which is an ImageIcon) to display for 3 seconds and disappear. However, the swirly icon does not disappear.
Here's my code.
import javax.imageio.ImageIO;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.File;
import java.io.IOException;
public class Main {
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
private static void createAndShowGUI() {
JFrame f = new JFrame("random title");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setResizable(false);
f.add(new MyPanel());
f.pack();
f.setVisible(true);
}
}
class MyPanel extends JPanel {
private static final long serialVersionUID = 1L;
public int x;
public int y;
public int remoteControllerX = 473;
public int remoteControllerY = 340;
public int buttonX = 166;
public int buttonY = 208;
Image img;
Image remoteController;
ImageIcon button = new ImageIcon("graphics/button.gif");
Component buttonTrigger = this;
public MyPanel() {
try {
img = ImageIO.read(new File("graphics/close_0.jpg"));
} catch (IOException e) {
e.printStackTrace();
}
try {
remoteController = ImageIO.read(new File("graphics/pilot.png"));
} catch (IOException ex) {
ex.printStackTrace();
}
setBorder(BorderFactory.createLineBorder(Color.black));
new Timer(3000, paintTimer).start();
addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
x = e.getX();
y = e.getY();
// Here goes action on background, which is unrelated to this example.
}
});
}
public Dimension getPreferredSize() {
return new Dimension(1048, 484);
}
protected void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawImage(img, 0, 0, null);
g.drawImage(remoteController, remoteControllerX, remoteControllerY, null);
Toolkit.getDefaultToolkit().sync();
button.paintIcon(buttonTrigger, g, buttonX, buttonY);
}
Action paintTimer = new AbstractAction() {
private static final long serialVersionUID = -2121714427110679013L;
public void actionPerformed(ActionEvent e) {
buttonTrigger = null;
repaint();
}
};
}
You'll also need these 3 images for the code to run:
http://ajks.pl/graveyard/close_0.jpg
http://ajks.pl/graveyard/pilot.png
http://ajks.pl/graveyard/button.gif
They are placed in a graphics folder under the main Java project.
I added a boolean to determine whether or not to paint the swirly image icon.
Here's the corrected code.
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.Timer;
public class Main {
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
private static void createAndShowGUI() {
JFrame f = new JFrame("random title");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setResizable(false);
f.add(new MyPanel());
f.pack();
f.setVisible(true);
}
}
class MyPanel extends JPanel {
private static final long serialVersionUID = 1L;
public boolean paintButton = true;
public int x;
public int y;
public int remoteControllerX = 473;
public int remoteControllerY = 340;
public int buttonX = 166;
public int buttonY = 208;
Image img;
Image remoteController;
ImageIcon button = new ImageIcon(
"graphics/button.gif");
Component buttonTrigger = this;
public MyPanel() {
try {
img = ImageIO.read(new File("graphics/close_0.jpg"));
remoteController = ImageIO.read(new File("graphics/pilot.png"));
} catch (IOException e) {
e.printStackTrace();
}
setBorder(BorderFactory.createLineBorder(Color.black));
new Timer(3000, paintTimer).start();
addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
x = e.getX();
y = e.getY();
// Here goes action on background, which is unrelated to this
// example.
}
});
}
#Override
public Dimension getPreferredSize() {
return new Dimension(1048, 484);
}
#Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawImage(img, 0, 0, null);
g.drawImage(remoteController, remoteControllerX, remoteControllerY,
null);
Toolkit.getDefaultToolkit().sync();
if (paintButton) {
button.paintIcon(buttonTrigger, g, buttonX, buttonY);
}
}
Action paintTimer = new AbstractAction() {
private static final long serialVersionUID = -2121714427110679013L;
#Override
public void actionPerformed(ActionEvent e) {
paintButton = false;
repaint();
}
};
}
Related
I am writing a program where I need to do different actions for a separate class depending on which button is clicked.
public class NewJFrame{
public static JButton b1;
public static JButton b2;
public static JButton b3;
}
public class Slot{
int value;
JButton button;
Slot(int value, JButton button)
{
this.value=value;
this.button=button;
}
}
public class Game{
Slot[] slots=new Slot[3];
Game(){
slots[0]=new Slot(1,NewJFrame.b1);
slots[1]=new Slot(2,NewJFrame.b2);
slots[2]=new Slot(3,NewJFrame.b3);
}
public void actionPerformed(ActionEvent e) {
for(int i=0;i<3;i++){
if(e.getSource()==slots[i].button)
slots[i].button.setText(String.valueOf(value));
}
}
}
Something like this. Note that, I'm completely novice at GUI designing.
Use Action to encapsulate functionality for use elsewhere in your program, e.g. buttons, menus and toolbars. The BeaconPanel shown below exports several actions that make it easy to use them in a control panel. To limit the proliferation of instances, the actions themselves can be class members. As an exercise, change controls to a JToolBar or add the same actions to a menu.
JPanel controls = new JPanel();
controls.add(new JButton(beaconPanel.getFlashAction()));
controls.add(new JButton(beaconPanel.getOnAction()));
controls.add(new JButton(beaconPanel.getOffAction()));
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.Ellipse2D;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.Timer;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
/** #see http://stackoverflow.com/a/37063037/230513 */
public class Beacon {
private static class BeaconPanel extends JPanel {
private static final int N = 16;
private final Ellipse2D.Double ball = new Ellipse2D.Double();
private final Timer timer;
private final Color on;
private final Color off;
private final AbstractAction flashAction = new AbstractAction("Flash") {
#Override
public void actionPerformed(ActionEvent e) {
timer.restart();
}
};
private final AbstractAction onAction = new AbstractAction("On") {
#Override
public void actionPerformed(ActionEvent e) {
stop(on);
}
};
private final AbstractAction offAction = new AbstractAction("Off") {
#Override
public void actionPerformed(ActionEvent e) {
stop(off);
}
};
private Color currentColor;
public BeaconPanel(Color on, Color off) {
this.on = on;
this.off = off;
this.currentColor = on;
timer = new Timer(500, new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
changeColors();
}
});
}
public void start() {
timer.start();
}
#Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D) g;
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
int x = getX() + N;
int y = getY() + N;
int w = getWidth() - 2 * N;
int h = getHeight() - 2 * N;
ball.setFrame(x, y, w, h);
g2.setColor(currentColor);
g2.fill(ball);
g2.setColor(Color.black);
g2.draw(ball);
}
private void changeColors() {
currentColor = currentColor == on ? off : on;
repaint();
}
private void stop(Color color) {
timer.stop();
currentColor = color;
repaint();
}
public Action getFlashAction() {
return flashAction;
}
public Action getOnAction() {
return onAction;
}
public Action getOffAction() {
return offAction;
}
#Override
public Dimension getPreferredSize() {
return new Dimension(N * N, N * N);
}
}
public static void display() {
JFrame f = new JFrame("Beacon");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
final BeaconPanel beaconPanel = new BeaconPanel(Color.orange, Color.orange.darker());
f.add(beaconPanel);
JPanel controls = new JPanel();
controls.add(new JButton(beaconPanel.getFlashAction()));
controls.add(new JButton(beaconPanel.getOnAction()));
controls.add(new JButton(beaconPanel.getOffAction()));
f.add(controls, BorderLayout.SOUTH);
f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
beaconPanel.start();
}
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
Beacon.display();
}
});
}
}
I would like to animate an Image placed in a JLabel like you can see below.
I have a problem with animation. The code doesn't produce any errors, but it just works in the void indefinitely.
Class Obstacle:
package imageTest;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.Timer;
public class Obstacle extends JPanel {
//Position
int posX,posY;
public int getPosX(){
return this.posX;
}
public void setPosX(int posX){
this.posX=posX;
}
public int getPosY(){
return this.posY;
}
public void setPosY(int posY){
this.posY=posY;
}
public int fctHasard(int borneInf,int borneSup){
int random = (int)(Math.random() * (borneSup-borneInf)) + borneInf;
return random;
}
//Image Obstacle
Image imgObstacle =new Image("C:\\Users\\antoine\\Desktop\\imgProjetObstacle.JPG");
JLabel labImgObstacle =null;
public void fctDessinerObstacle(JFrame fenPrincipale, JPanel panPrincipale) throws IOException{
int posXDepart=fctHasard(0,fenPrincipale.getWidth()),posYDepart=ImageUtil.getImageHeight(imgObstacle.adresseImg);
posX=posXDepart;
posY=posYDepart;
labImgObstacle=imgObstacle.fctAfficherImg(panPrincipale, posX,posY,ImageUtil.getImageWidth(imgObstacle.adresseImg), ImageUtil.getImageHeight(imgObstacle.adresseImg));
panPrincipale.add(labImgObstacle);
//fctMouvement(fenPrincipale, labImgObstacle ,panPrincipale,posX,posY);
}
public void fctMouvement(JFrame fenPrincipale, JLabel labImgObstacle , JPanel panPrincipale,int posX ,int posY) throws IOException{
boolean continuer=true;
while(continuer){
posY++;
labImgObstacle=imgObstacle.fctAfficherImg(panPrincipale, posX,posY,ImageUtil.getImageWidth(imgObstacle.adresseImg), ImageUtil.getImageHeight(imgObstacle.adresseImg));
panPrincipale.add(labImgObstacle);
panPrincipale.repaint();//remetlefondvierge
if(posY==fenPrincipale.getHeight()){
posX=fctHasard(0,fenPrincipale.getWidth());
posY=-ImageUtil.getImageHeight(imgObstacle.adresseImg);
//remet le fond vierge
labImgObstacle=imgObstacle.fctAfficherImg(panPrincipale, posX,posY,ImageUtil.getImageWidth(imgObstacle.adresseImg), ImageUtil.getImageHeight(imgObstacle.adresseImg));
panPrincipale.add(labImgObstacle);
}
}
}
}
EDIT1:
I try to understand you problem, is it to move a image into a JLabel ?
In this case, I try just to put an image as icon into a Jlabel and move while clicking on the JPanel as you can see below :
import java.awt.Dimension;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.ImageIcon;
import javax.swing.UIManager;
import javax.swing.SwingUtilities;
public class Main extends JPanel {
public JLabel label1 ;
private int x = 100;
private int y = 5;
public Main() {
setLayout(null);
setPreferredSize( new Dimension(640, 480 ) );
addMouseListener(new MouseListener() {
#Override
public void mousePressed(MouseEvent e) {
x = x + 10;
y = y + 10;
label1.setBounds(x + getInsets().left, y + getInsets().top, label1.getPreferredSize().width, label1.getPreferredSize().height);
}
#Override
public void mouseClicked(MouseEvent e) {
}
#Override
public void mouseReleased(MouseEvent e) {
}
#Override
public void mouseEntered(MouseEvent e) {
}
#Override
public void mouseExited(MouseEvent e) {
}
});
ImageIcon icon = createImageIcon("middle.gif", "a pretty but meaningless splat");
label1 = new JLabel("Image and Text",icon, JLabel.CENTER);
add(label1);
label1.setBounds(x + getInsets().left, y + getInsets().top, label1.getPreferredSize().width, label1.getPreferredSize().height);
}
protected static ImageIcon createImageIcon(String path,
String description) {
java.net.URL imgURL = Main.class.getResource(path);
if (imgURL != null) {
return new ImageIcon(imgURL, description);
} else {
System.err.println("Couldn't find file: " + path);
return null;
}
}
/**
* Create the GUI and show it. For thread safety,
* this method should be invoked from the
* event dispatch thread.
*/
private static void createAndShowGUI() {
JFrame frame = new JFrame("Demo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new Main());
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
UIManager.put("swing.boldMetal", Boolean.FALSE);
createAndShowGUI();
}
});
}
}
May be that could be the beginning to animate something ?
I have just written a program in Netbeans that moves/copies/deletes files, and I wanted to give it a "diagnostic mode" where information about selected files, folders, variables, etc is displayed in a Text Area. Now, I could set this to only be visible when the "diagnostic mode" toggle is selected, but I think it would look awesome if the text area started behind the program, and "slid" out from behind the JFrame when the button is toggled. Is there any way to do this?
Thanks!
-Sean
Here is some starter code for you. This will right-slide a panel
of just about any content type. Tweak as necessary. Add error
checking and exception handling.
Tester:
static public void main(final String[] args) throws Exception {
SwingUtilities.invokeAndWait(new Runnable() {
#Override
public void run() {
final JPanel slider = new JPanel();
slider.setLayout(new FlowLayout());
slider.setBackground(Color.RED);
slider.add(new JButton("test"));
slider.add(new JButton("test"));
slider.add(new JTree());
slider.add(new JButton("test"));
slider.add(new JButton("test"));
final CpfJFrame42 cpfJFrame42 = new CpfJFrame42(slider, 250, 250);
cpfJFrame42.slide(CpfJFrame42.CLOSE);
cpfJFrame42.setSize(300, 300);
cpfJFrame42.setLocationRelativeTo(null);
cpfJFrame42.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
cpfJFrame42.setVisible(true);
}
});
}
Use GAP & MIN to adjust spacing from JFrame and closed size.
The impl is a little long...it uses a fixed slide speed but
that's one the tweaks you can make ( fixed FPS is better ).
package com.java42.example.code;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Cursor;
import java.awt.FlowLayout;
import java.awt.Insets;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentEvent;
import java.awt.event.ComponentListener;
import java.awt.event.KeyAdapter;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseMotionAdapter;
import java.awt.image.BufferedImage;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTree;
import javax.swing.SwingUtilities;
public class CpfJFrame42 extends JFrame {
public static int GAP = 5;
public static int MIN = 1;
public static final int OPEN = 0x01;
public static final int CLOSE = 0x02;
private JDialog jWindow = null;
private final JPanel basePanel;
private final int w;
private final int h;
private final Object lock = new Object();
private final boolean useSlideButton = true;
private boolean isSlideInProgress = false;
private final JPanel glassPane;
{
glassPane = new JPanel();
glassPane.setOpaque(false);
glassPane.addMouseListener(new MouseAdapter() {
});
glassPane.addMouseMotionListener(new MouseMotionAdapter() {
});
glassPane.addKeyListener(new KeyAdapter() {
});
}
public CpfJFrame42(final Component component, final int w, final int h) {
this.w = w;
this.h = h;
component.setSize(w, h);
addComponentListener(new ComponentListener() {
#Override
public void componentShown(final ComponentEvent e) {
}
#Override
public void componentResized(final ComponentEvent e) {
locateSlider(jWindow);
}
#Override
public void componentMoved(final ComponentEvent e) {
locateSlider(jWindow);
}
#Override
public void componentHidden(final ComponentEvent e) {
}
});
jWindow = new JDialog(this) {
#Override
public void doLayout() {
if (isSlideInProgress) {
}
else {
super.doLayout();
}
}
};
jWindow.setModal(false);
jWindow.setUndecorated(true);
jWindow.setSize(component.getWidth(), component.getHeight());
jWindow.getContentPane().add(component);
locateSlider(jWindow);
jWindow.setVisible(true);
if (useSlideButton) {
basePanel = new JPanel();
basePanel.setLayout(new BorderLayout());
final JPanel statusPanel = new JPanel();
basePanel.add(statusPanel, BorderLayout.SOUTH);
statusPanel.add(new JButton("Open") {
private static final long serialVersionUID = 9204819004142223529L;
{
setMargin(new Insets(0, 0, 0, 0));
}
{
addActionListener(new ActionListener() {
#Override
public void actionPerformed(final ActionEvent e) {
slide(OPEN);
}
});
}
});
statusPanel.add(new JButton("Close") {
{
setMargin(new Insets(0, 0, 0, 0));
}
private static final long serialVersionUID = 9204819004142223529L;
{
addActionListener(new ActionListener() {
#Override
public void actionPerformed(final ActionEvent e) {
slide(CLOSE);
}
});
}
});
{
//final BufferedImage bufferedImage = ImageFactory.getInstance().createTestImage(200, false);
//final ImageIcon icon = new ImageIcon(bufferedImage);
//basePanel.add(new JButton(icon), BorderLayout.CENTER);
}
getContentPane().add(basePanel);
}
}
private void locateSlider(final JDialog jWindow) {
if (jWindow != null) {
final int x = getLocation().x + getWidth() + GAP;
final int y = getLocation().y + 10;
jWindow.setLocation(x, y);
}
}
private void enableUserInput() {
getGlassPane().setVisible(false);
}
private void disableUserInput() {
setGlassPane(glassPane);
}
public void slide(final int slideType) {
if (!isSlideInProgress) {
isSlideInProgress = true;
final Thread t0 = new Thread(new Runnable() {
#Override
public void run() {
setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
disableUserInput();
slide(true, slideType);
enableUserInput();
setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
isSlideInProgress = false;
}
});
t0.setDaemon(true);
t0.start();
}
else {
Toolkit.getDefaultToolkit().beep();
}
}
private void slide(final boolean useLoop, final int slideType) {
synchronized (lock) {
for (int x = 0; x < w; x += 25) {
if (slideType == OPEN) {
jWindow.setSize(x, h);
}
else {
jWindow.setSize(getWidth() - x, h);
}
jWindow.repaint();
try {
Thread.sleep(42);
} catch (final Exception e) {
e.printStackTrace();
}
}
if (slideType == OPEN) {
jWindow.setSize(w, h);
}
else {
jWindow.setSize(MIN, h);
}
jWindow.repaint();
}
}
}
i made this code that when you start it it's suposed to show you an image and then change it between other two images when you press the left or right key, but for some reason it isn't reading the input from the keyboard, i tryed to use a mouseListener and it worked, this is the code:
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Implementary extends JFrame
{
private static final long serialVersionUID = 1L;
public Dimension d;
public static ImageIcon Im = new ImageIcon(Implementary.class.getResource("death.png"));
public static ImageIcon Imc = new ImageIcon(Implementary.class.getResource("right.png"));
public static ImageIcon I = new ImageIcon(Implementary.class.getResource("left.png"));
public static Image Img = Im.getImage();
public static int x = 10;
public static int y = 10;
public Implementary()
{
super("hue");
int x1 = (int) Toolkit.getDefaultToolkit().getScreenSize().getWidth();
int y1 = (int) Toolkit.getDefaultToolkit().getScreenSize().getHeight();
d = new Dimension(x1, y1 - 45);
this.setSize(d);
this.setLocationRelativeTo(null);
Panel p = new Panel();
p.addKeyListener(new KeyListener()
{
#Override
public void keyTyped(KeyEvent e)
{
keyPressed(e);
}
#Override
public void keyPressed(KeyEvent e)
{
int k = e.getKeyCode();
if (k == KeyEvent.VK_LEFT)
{
Img = I.getImage();
repaint();
System.out.println(3);
}
else
{
Img = Imc.getImage();
repaint();
System.out.println(2);
}
System.out.println(1);
}
#Override
public void keyReleased(KeyEvent e)
{
keyPressed(e);
}
});
this.add(p);
}
static class Panel extends JPanel
{
private static final long serialVersionUID = 1L;
public void paintComponent(Graphics g)
{
super.paintComponent(g);
this.setBackground(Color.cyan);
g.drawImage(Img, x, y, null);
}
}
}
and this is the main class:
public class Yo
{
public static void main(String args[])
{
Implementary imp = new Implementary();
imp.setVisible(true);
}
}
Adding the KeyListener to the whole JFrame could do the trick.
As your JPanel cannot be selected/focused it doesn't receive keystrokes.
Changing
p.addKeyListener(new KeyListener()
to
this.addKeyListener(new KeyListener()
works for me.
import javax.swing.SwingUtilities;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.BorderFactory;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.*;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseMotionListener;
import java.awt.event.MouseMotionAdapter;
import java.awt.geom.*;
import java.util.*;
public class test1 extends JFrame implements MouseListener {
private JPanel JP = new JPanel();
public test1() {
JP.setBorder(BorderFactory.createLineBorder(Color.black));
JP.addMouseListener(this);
this.setDefaultCloseOperation(this.EXIT_ON_CLOSE);
this.add(JP);
this.pack();
}
public static void main(String[] args) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
test1 frame = new test1();
frame.setSize(400,400);
frame.setVisible(true);
}
});
}
public void mouseClicked(MouseEvent e) {
//drawCircle(e.getX(), e.getY());
//repaint();
ballball ball;
ball = new ballball();
//ball.paintComponent(Graphics g);
System.out.println("ballball");
}
public void mouseExited(MouseEvent e) {
}
public void mousePressed(MouseEvent e) {
//this.mouseX=e.getX();
//this.mouseY=e.getY();
}
public void mouseReleased(MouseEvent e) {
}
public void mouseEntered(MouseEvent e) {
}
}
class ballball extends test1 implements Runnable {
private int squareX = 50;
private int squareY = 50;
private int squareW = 100;
private int squareH = 100;
public boolean draw;
private Vector<Object> v = new Vector<Object>();
public ballball() {
/*addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
draw = true;
//Thread thread1 = new Thread(this.moveSquare(50, 50));
repaint();
//moveSquare(e.getX(),e.getY());
}
});*/
/*addMouseMotionListener(new MouseAdapter() {
public void mouseDragged(MouseEvent e) {
moveSquare(e.getX(),e.getY());
}
});*/
System.out.println("ball created");
this.repaint();
}
public void run() {
}
private void moveSquare(int x, int y) {
int OFFSET = 1;
if ((squareX!=x) || (squareY!=y)) {
repaint(squareX,squareY,squareW+OFFSET,squareH+OFFSET);
squareX=x;
squareY=y;
repaint(squareX,squareY,squareW+OFFSET,squareH+OFFSET);
}
}
public void paint(Graphics g) {
g.drawString("abcasdfasffasfas", 10, 10);
}
//#Override
public void paintComponent(Graphics g) {
//if (draw) {
// existing code
System.out.println("paint");
//super.paintComponent(g);
//g.drawString("This is my custom Panel!",10,20);
//g.setColor(Color.RED);
//g.fillRect(squareX,squareY,squareW,squareH);
//g.setColor(Color.BLACK);
//g.drawRect(squareX,squareY,squareW,squareH);
Shape circle = new Ellipse2D.Float(squareX,squareY,100f,100f);
Graphics2D ga = (Graphics2D)g;
ga.draw(circle);
//}
}
}
The aim of the program is to click to create the circle, the ballball class extends the test1, when test1 detect the mouse click, the ballball object created. But the paint/paintComponent method is never be executed. In my program structure, is it possible to paint the circle to the super class JPanel?
JFrame is not a JComponent, it doesn't have a paintComponent method you can override. Instead you could extend a JPanel and add it to the frame.