Problem Adding components to JApplet ...
I have a JApplet that is currently displaying a game which is basically a 2D image array with images that are shuffled around and need to be sorted...
I'm having problems adding Swing components to said JApplet!!!
JApplet:
void addComponents ()
{
JLabel bottomLabel =new JLabel ("this is quite clearly the bottom!!!");
JPanel pan =new JPanel ();
bottomLabel.setHorizontalAlignment (JLabel.CENTER);
getContentPane().add (bottomLabel, BorderLayout.SOUTH);
}
/////////
publicvoid init ()
{
addComponents();
}
which is being instantiated like this:
publicvoid gameInit (int x_value,int y_value, String img_path)
{
SliderIMG2 Slider =new SliderIMG2 ();
setContentPane (Slider);
Slider.runGame (x_value, y_value, img_path);//just calls init() and sets variables
////////////
setVisible (true);
}
At the moment I'm just getting my JApplet with the images, but no JLabel
Any help appreciated!!
[1690 byte] By [
Hagena] at [2007-11-27 10:58:27]
# 1
that's not enough source code to see what you are doing wrong.
# 2
hmm okay, anything specific you'd like to see? My code for the JApplet class is about 600 lines, and there are about 5 other classes i'm using aswell..!
btw, I changed the code in the instantiation code to:
getContentPane().add (Slider);
instead of
setContentPane (Slider);-- but no luck...
null
Message was edited by:
Hagen
Hagena at 2007-7-29 12:15:36 >
# 3
> which is being instantiated like this:
No idea what you are doing. An applet is invoked from a browser. You don't instantiate an applet. The browser loads the class and invoked the init() method.
Here is a complete Applet:
// <applet code="AppletTest.class" width="300" height="100"></applet>
import java.awt.*;
import javax.swing.text.*;
import javax.swing.*;
public class AppletTest extends JApplet
{
public void init()
{
JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
buttonPanel.add( new JButton("Button1") );
buttonPanel.add( new JButton("Button2") );
getContentPane().add(buttonPanel, BorderLayout.NORTH);
getContentPane().add( new JTextArea() );
getContentPane().add(new JButton(new DefaultEditorKit.CopyAction()), BorderLayout.SOUTH);
}
}
Which can be tested by using:
appletviewer AppletTest.java
You don't need 500 lines of code to demonstrate a problem....
# 4
Let me try again with the code...
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import javax.swing.*;
import java.applet.*;
public class SliderIMG2 extends JApplet implements KeyListener
{
//DECLERATION OF CLASS VARIABLES
public void init ()
{
//ASSIGNING VALUES TO SOME VARIABLES ETC ETC...
addComponents ();
repaint ();
}
public void runGame (int x_value, int y_value, String path)
{
x = x_value;
y = y_value;
img_path = path;
init ();
}
paint (g){
}
update(g){
}
}
That's basically the structure of my JApplet; if I knew where I was going wrong I'd obviously include only the code which I knew to be faulty, but seeing as I don't, I'm trying my best to isolate where the problem could be without adding 500 lines of code here... =/
I'm not invoking anything from a browser; I have a standalone swing GUI interface, where a button-click starts the JApplet...
Here is a gameLauncher() class that I use to ....(I don't know what the correct terminology is) ...run the **** thing!! :)
import javax.swing.*;
import java.awt.*;
public class GameLauncher extends JFrame
{
int x_value;
int y_value;
String img_path;
Tools imt;
public void gameInit (int x_value, int y_value, String img_path)
{
ImageIcon dimensions = new ImageIcon (img_path);
setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
setBounds (200, 200, (dimensions.getIconWidth () + 35), dimensions.getIconHeight () + 50));
SliderIMG2 Slider = new SliderIMG2 ();
getContentPane().add (Slider);
Slider.runGame (x_value, y_value, img_path);
setVisible (true);
}
}
sorry for sounding cocky, I have deadline stress.
Hagena at 2007-7-29 12:15:36 >
# 5
Ah wow! It's amazing where a bit of logic can get one...
I figured out the problem: I was adding (trying to add) components into the JApplet, but my JApplet is actually... uhm, in the gameLauncher JFrame...
All fixed now, I'm just building whatever GUI I want into the gameLauncher JFrame and it's all working out for me so far :)
thanks for the help! BTW if I'm still doing something I shouldn't be doing some advice would be much appreciated!
Hagena at 2007-7-29 12:15:36 >
# 6
You are creating an application not an applet. You should not be extending JApplet. You simply add your components to the content pane of a JFrame.
