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Re: [platform-swt-dev] Embedding AWT in SWT

I tried that. But it doesn't seem to work. Still what difference does it make when I set the background color of the Composite?


From: jozz <joo@xxxxxxxxxxx>
Reply-To: platform-swt-dev@xxxxxxxxxxx
To: platform-swt-dev@xxxxxxxxxxx
Subject: Re: [platform-swt-dev] Embedding AWT in SWT
Date: Mon, 21 Feb 2005 21:47:41 +0800

Hi,

Maybe you can try composite.setLayout(...)


Jozz


Mike Watson wrote:

Hi All,

I'm new to SWT. I've a specific requirement where I want to embed AWT components in an SWT shell. I read the documentation and saw the example code to do the same. I've written a sample code myself, but it behaves a bit wierd. Here is the code:

import org.eclipse.swt.*;
import org.eclipse.swt.widgets.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.awt.SWT_AWT;

public class AWTTest {

public static void main(String[] args) {
Display display = new Display();
final Shell shell = new Shell(display);
shell.setText("AWT Test");
GridLayout gridlayout = new GridLayout();
shell.setLayout(gridlayout);
Composite composite = new Composite(shell, SWT.EMBEDDED);
composite.setLayoutData(new GridData(GridData.FILL_VERTICAL | GridData.FILL_HORIZONTAL));
//composite.setBackground(display.getSystemColor(SWT.COLOR_WHITE));
java.awt.Frame frame = SWT_AWT.new_Frame(composite);
frame.setLayout(new java.awt.BorderLayout());
java.awt.Panel panel = new java.awt.Panel();
panel.setLayout(new java.awt.FlowLayout());
java.awt.Button b = new java.awt.Button("AWT Button");
java.awt.Choice ch = new java.awt.Choice();
ch.addItem("One");
ch.addItem("Two");
java.awt.Checkbox cb = new java.awt.Checkbox("Checkbox");
java.awt.Label label = new java.awt.Label("Label");
java.awt.List list = new java.awt.List();
list.add("One");
list.add("Two");
java.awt.Scrollbar sb = new java.awt.Scrollbar(java.awt.Scrollbar.HORIZONTAL, 0, 20, 0, 100);
java.awt.TextField tf = new java.awt.TextField(20);
java.awt.TextArea ta = new java.awt.TextArea(5, 15);
panel.add(b);
panel.add(ch);
panel.add(cb);
panel.add(label);
panel.add(list);
panel.add(sb);
panel.add(tf);
panel.add(ta);
frame.add(panel);


        Listener exitListener = new Listener() {
            public void handleEvent(Event e) {
                shell.dispose();
            }
        };
        shell.addListener(SWT.Close, exitListener);
       shell.setLocation(300, 100);
        shell.setSize(400, 400);
       shell.open();

        System.out.println(frame.getSize());
        while(!shell.isDisposed()) {
            if (!display.readAndDispatch()) display.sleep();
        }
        display.dispose();
    }
}

The code does not display the AWT components. But if I uncomment a line of code which sets background color of the Composite, the AWT components become visible. This is happening with SWT 3.0.1 on Solaris platform. What is the reason for this behavior? What am I doing wrong?

TIA,
Mike

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