Printable View
Not sure where the printout is coming from if you have gotten rid of the myFrame class.Quote:
I got rid of my myFrame class
it gives me
myFrame bounds = java.awt.Rectangle[x=0,y=0,width=0,height=0]
I'm assuming that the label for the printed message has the name of the class it is in. The idea when debugging with printlns is to have ALL of the printlns use a unique label so you can tell which println it came from.
Quote:
Originally Posted by Norm
in the addComponentsToPane method
Is the program working now?
No but I got a button showing upQuote:
Originally Posted by Norm
Code :controls.add(startButton); startButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { panel.validate(); panel.repaint(); System.out.println("Layout bounds = " + getBounds()); } }); pane.add(controls,BorderLayout.SOUTH);
With that I got a button and every time I press it tells me the bounds
Layout bounds = java.awt.Rectangle[x=0,y=0,width=800,height=600]
But still no ball or pad
Do you mean that the paintComponent() method of those two classes is not being called?Quote:
still no ball or pad
Does the button's bounds take up the whole screen?
How are you using a layout manager to control where the components are positioned on the screen?
Right none of those two classes are being calledQuote:
Originally Posted by Norm
No the button is a nice size and it's at the bottom of the screenQuote:
Originally Posted by Norm
pane.add(controls,BorderLayout.SOUTH);Quote:
Originally Posted by Norm
Please post the current code.
arkanoidGame.java
Code :import java.awt.*; import java.awt.event.*; import javax.swing.*; public class arkanoidGame extends JFrame { FlowLayout layout = new FlowLayout(); JButton startButton = new JButton("Start Game"); private static final long serialVersionUID = 1L; public arkanoidGame(String name) { super(name); } public void addComponentsToPane(final Container pane) { final JPanel panel = new JPanel(); JPanel controls = new JPanel(); controls.setLayout(new FlowLayout()); panel.setLayout(layout); panel.add(new ball()); panel.add(new pad()); controls.add(startButton); startButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { panel.validate(); panel.repaint(); System.out.println("pad bounds = " + getBounds()); } }); pane.add(controls,BorderLayout.SOUTH); pane.add(new ball(),BorderLayout.NORTH); pane.add(new pad(),BorderLayout.CENTER); } private static void createAndShowGui() { arkanoidGame frame = new arkanoidGame("Arkanoid Game"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.pack(); frame.setSize(800,600); frame.setBounds(0,0,800,600); frame.addComponentsToPane(frame.getContentPane()); frame.setFocusable(true); frame.setFocusTraversalKeysEnabled(false); frame.setVisible(true); } public static void main(String[] args) { try { //UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel"); UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel"); } catch (UnsupportedLookAndFeelException ex) { ex.printStackTrace(); } catch (IllegalAccessException ex) { ex.printStackTrace(); } catch (InstantiationException ex) { ex.printStackTrace(); } catch (ClassNotFoundException ex) { ex.printStackTrace(); } UIManager.put("swing.boldMetal", Boolean.FALSE); javax.swing.SwingUtilities.invokeLater(new Runnable(){ public void run() { createAndShowGui(); } }); } }
When I execute the code I get this:
pad paint bnds=java.awt.Rectangle[x=0,y=10,width=784,height=516]
Ball paint bnds=java.awt.Rectangle[x=0,y=0,width=784,height=10]
showing that the paintComponent methods are called and I get two lines (blue and red) drawn on the screen.
I get the same thingQuote:
Originally Posted by Norm
I'm confused. In post #29 you said: But still no ball or pad
If those messages are being printed then the ball and pad class's methods are being executed.
I added this since :Quote:
Originally Posted by Norm
pane.add(new ball(),BorderLayout.NORTH);
pane.add(new pad(),BorderLayout.CENTER);
I think that's why we get some random bounds...
The objects for the ball and pad classes are being added and their paintComponent methods are being called.
What is the problem now?
They are not showing upQuote:
Originally Posted by Norm
Do you have the call to drawLine() I mentioned in post#4 in the paintComponent() method to show where the component is located?
What do you expect to show up? How does the drawing x,y values compare to the bounds of the component? Are they outside or inside?
I added the drawLine() and the lines show up.Quote:
Originally Posted by Norm
The problem is the bound of each they are not right... I tryed with the method setBounds but it doesn't seem to work
How are you trying to control the bounds of the components?Quote:
the bound of each they are not right
The code uses two layout managers. They will position the components. You cant use the setBounds() method in the same container that there is a layout manager.
How can I do it then? Can I put them where ever I want them to be?Quote:
Originally Posted by Norm
Set the layout manager to null and use setBounds()Quote:
Can I put them where ever I want them
Can i have overlapping bounds?Quote:
Originally Posted by Norm
Yes. The results would be like laying one piece of paper on another one. The top one will be visible, the one underneath will be hidden.
Perhaps if you made the top ones transparent you could see what is underneath.
Quote:
Originally Posted by Norm
I'm trying to use setBounds it doesn't work I tryed to use it that way :
pane.add(new ball().setBounds(60,60,60,60));
What does "doesn't work" mean? Please explain in more detail.
Quote:
Originally Posted by Norm
It's an error :
The method add(Component) in the type Container is not applicable for the arguments (void)
Break the statement up into single steps.
setBounds() is a void method. You can not add(void) to a container.