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Thread: GUI problem

  1. #1
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    Default GUI problem

    I created a GUI that extends JFrame. The GUI has several textfields, buttons, labels and lists. The problem arises when i minimise the window and then maximise it. The textfields stay in place but the list, labels and buttons stick to the top of the window after maximising! Please Help
    this is the part of the code where i add a list, label and button for example:

      l = new List();
                                                       l.setSize(250, 200);
     
                                                       l.setLocation(500, 250);
                                                       l.setVisible(true);
                                                       l.setFocusable(true);
                                                       M.add(l);//was M
                                                       l.setFont(new Font("sansserif", Font.BOLD, 15));//set the txt font n size
     
                                                       patientListTitle=new Label("PID:         Patient's Name:");
                                                       patientListTitle.setSize(200, 50);
     
                                                       patientListTitle.setLocation(500, 200);
                                                       patientListTitle.setForeground(Color.BLACK);
                                                       patientListTitle.setBackground(Color.white);
                                                       patientListTitle.setVisible(true);
                                                       patientListTitle.setFocusable(true);
     
                                                      M.add(patientListTitle);//was M
     
     
                                                       Select.setSize(50, 25);
                                                       Select.setLocation(500, 580);
                                                       Select.setVisible(true);
                                                       Select.setFocusable(true);
                                                       M.add(Select);//was M
     
                                                       Select.addActionListener(new ActionListener(){
                                                        public void actionPerformed(ActionEvent e) {
                                                                    System.out.println("Select Button clicked");
                                                                    // ADD STUFF HERE :D
     
                                                                    getIndexedItem=l.getItem(l.getSelectedIndex());
                                                                    System.out.println(getIndexedItem);
                                        try {
                                            deletePatient(getIndexedItem, l.getSelectedIndex());
                                        } catch (SQLException ex) {
                                            Logger.getLogger(javaapplication2.class.getName()).log(Level.SEVERE, null, ex);
                                        } catch (ClassNotFoundException ex) {
                                            Logger.getLogger(javaapplication2.class.getName()).log(Level.SEVERE, null, ex);
                                        }
     
     
                                                                }
                                                        });
                                                      repaint();
                                try {
                                    retrievePatient();
                                } catch (SQLException ex) {
                                    Logger.getLogger(javaapplication2.class.getName()).log(Level.SEVERE, null, ex);
                                }
     
                                                                               repaint();


  2. #2
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    Default Re: GUI problem

    Is this:
    l = new List();
    supposed to be a JList?

    If you really want to use coordinates, I would suggest the layout I made. I attached text documents of the java classes (since I cannot attach .java files). Save them as .java files instead of .txt files, compile them, and run them to see how it works. Very simple once you get the hang of it.

    All I ask is that you don't claim it as your creation.

    There are a few "bugs" in it, as in some of the methods don't work exactly as expected and some are incomplete. If you feel like completing them or fixing them, tell me and I'll add you on the credit if you get them working.
    Attached Files Attached Files
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  3. #3
    Super Moderator copeg's Avatar
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    Default Re: GUI problem

    With the information provided it is difficult to ascertain what the exact problem is, but my guess is along the same lines as aussiemcgr. Are you setting your layout to null? If so, do not use this approach. Use a standard layout that Swing provides. See A Visual Guide to Layout Managers

  4. #4
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    Default Re: GUI problem

    Thank you all. What I am doing is that i created a public class that extends Jpannel and I am adding my components to it. It works perfectly before minimising the window:

    after minmising the window:

    I did not use any grids or layout organizations. Just added the components and set the coordinates. Is that the problem?

  5. #5
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    Default Re: GUI problem

    list is not a Jlist.

  6. #6
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    Default Re: GUI problem

    Please use [highlight=Java] code [/highlight] tags when posting your code.
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  7. #7
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    Default Re: GUI problem

    Quote Originally Posted by Reem View Post
    list is not a Jlist.
    Well then I'm confused. The List class (List (Java Platform SE 6)) has no setSize method, setLocation method, setVisible method, setFocusable method, or setFont method. The JList class however (JList (Java Platform SE 6)) has all of those.
    NOTE TO NEW PEOPLE LOOKING FOR HELP ON FORUM:

    When asking for help, please follow these guidelines to receive better and more prompt help:
    1. Put your code in Java Tags. To do this, put [highlight=java] before your code and [/highlight] after your code.
    2. Give full details of errors and provide us with as much information about the situation as possible.
    3. Give us an example of what the output should look like when done correctly.

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