How to create a Eclipse plugin wizard page part 1

To create a Plugon wizard you need to first create a temple for your page.
This class can be extended from the class WizardPage.  An abstract base implementation of a wizard page. We can use the following  methods to configure the wizard page:

•     setDescription
•     setErrorMessage
•     setImageDescriptor
•     setMessage
•     setPageComplete
•     setPreviousPage
•     setTitle

You can get more information about these methods from here.
This is my page template let see what each of these code segmants do.

class RS_wizard_page1 extends WizardPage {
   
    private Text host;
    private Text port;
    private Text path;
    public String server_url;
    private Composite container;
    private Object user_select_value;
    String[][] Value_ecg_providers;
   
        public RS_wizard_page1(Object user_select_value ) {
        super("Hello Remote Service Host");
        this.user_select_value = user_select_value;
        setTitle("Hello Remote Service Host");
        setDescription("Enter data for your server");   
       
    }

    @Override
    public void createControl(Composite parent) {
       
        container = new Composite(parent, SWT.NONE);
        GridLayout layout = new GridLayout();
        container.setLayout(new GridLayout(1,false));
        layout.numColumns = 1;
         
         
        Label example = new Label(container, SWT.NONE);       
        example.setText("Example             ecftcp://localhost:3282/server");

       
        Label Host = new Label(container, SWT.NONE);
        Host.setText("Host");
        host = new Text(container, SWT.BORDER | SWT.SINGLE);
        host.setText("");
       
        Label Port = new Label(container, SWT.NONE);
        Port.setText("Port");
        port = new Text(container, SWT.BORDER| SWT.SINGLE);
        port.setText("");
       
        Label Path = new Label(container, SWT.NONE);       
        Path.setText("Path");
        path = new Text(container, SWT.BORDER| SWT.SINGLE);
        path.setText("");
       
       
       
        host.addKeyListener(new KeyListener() {

            @Override
            public void keyPressed(KeyEvent e) {
            }

            @Override
            public void keyReleased(KeyEvent e) {
                if (!host.getText().isEmpty()) {
                    setPageComplete(true);

                }
            }

        });
       
        port.addKeyListener(new KeyListener() {
           
            @Override
            public void keyReleased(KeyEvent e) {           
               
            }
           
            @Override
            public void keyPressed(KeyEvent e) {
                if (!port.getText().isEmpty()) {
                    setPageComplete(true);

                }
               
            }
        });
       
        path.addKeyListener(new KeyListener() {
           
            @Override
            public void keyReleased(KeyEvent e) {
                               
            }
           
            @Override
            public void keyPressed(KeyEvent e) {
                if (!path.getText().isEmpty()) {
                    setPageComplete(true);

                }
            }
        });
       
       
        GridData gd = new GridData(GridData.FILL_HORIZONTAL);
        host.setLayoutData(gd);
        port.setLayoutData(gd);
        path.setLayoutData(gd);
        // Required to avoid an error in the system
        setControl(container);
        setPageComplete(false);

    }

    public String getText1() {
        return host.getText();
    }

    public String getText2() {
        return port.getText();
    }

    public String getText3() {
        return path.getText();
    }
//to get the full server url
    public String getServer_url() {
        return server_url;
    }

    public void setServer_url(String server_url) {
        this.server_url = server_url;
        server_url= getText1()+getText2()+getText3();
    }
   
    @Override
    public IWizardPage getNextPage() {
        // TODO Auto-generated method stub
        return super.getNextPage();
    }
   
   
   
}




From the following part we set the page title,description of the page

        super("Hello Remote Service Host");
        this.user_select_value = user_select_value;
        setTitle("Hello Remote Service Host");
        setDescription("Enter data for your server");   



Then we need to configure the layout of the page.I have done it in the following way.

        container = new Composite(parent, SWT.NONE);
        GridLayout layout = new GridLayout();
        container.setLayout(new GridLayout(1,false));
        layout.numColumns = 1;
       

Frist I have create a new  container. This new instance of this class given its parent and a style value describing its behavior and appearance.

Then I have created a new layout. which controls children of a Composite in a grid. GridLayout has a number of configuration fields, and the controls it lays out can have an associated  layout data object, called GridData.

Because I need only  one column i have set the numColumns to one. 

How to put a label in the page  

 

We can create a new label  and have  include the parent a composite control which will be the parent of the new instance(in our case it is container ) and this cannot be null  and the style we need for the labe control to construct. In here I have put it has none
         Label Host = new Label(container, SWT.NONE);
       

Then we can say what does the label need have say by simpley invoking the method setText.

        Host.setText("Host");


Then we create a new  instance of this class given with the parent and a style value describing its behavior and  appearance.

        host = new Text(container, SWT.BORDER | SWT.SINGLE);