Bug 381851

Description abadamcd1 abadamcd1 2012-06-06 09:00:33 EDT

So I've noticed a difference in behavior between Windows and Linux.  Test machines are Windows 7 64 bit and Ubuntu Linux 12.04 64 bit.  

Hierarchy of the SWT controls
Shell -> Scrolled Composite -> composite -> lots of buttons

Whenever I use the the normal composite's or even the scrolled composites print command to print to a GC, it will only copy the viewable area on the Linux machine.  On Windows 7, it copies the entire contents of the composite.  

Below is code to generate this example and attached are the results of the code on the respective platforms.


Shell shell = new Shell(getDisplay());
shell.setLayout(new FillLayout());
shell.setSize(200, 200);
shell.setLocation(20, 20);

final ScrolledComposite sc = new ScrolledComposite(shell, SWT.BORDER  | SWT.V_SCROLL | SWT.H_SCROLL);
sc.setLayout(new GridLayout(1,true));

final Composite innerComposite = new Composite(sc, SWT.NONE);
innerComposite.setSize(400, 400);
innerComposite.setLayout(new GridLayout(1, true));
innerComposite.setBackground(new Color(getDisplay(), 255, 0, 0));

for(int i = 0; i < 10; i++)
{
        Button b = new Button(innerComposite, SWT.PUSH);
        b.setText("Text");
        b.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent e) 
            {
                Image image = new Image(getDisplay(), innerComposite.getBounds().width, innerComposite.getBounds().height);
                ImageLoader loader = new ImageLoader();

                GC gc = new GC(image);
                innerComposite.print(gc);
                
                gc.dispose();

                loader.data = new ImageData[]{image.getImageData()};
                loader.save("c:/temp/out.png", SWT.IMAGE_PNG);
            }
        });
}

sc.setMinSize(innerComposite.computeSize(SWT.DEFAULT, SWT.DEFAULT));
sc.setContent(innerComposite);
sc.setExpandHorizontal(true);
sc.setExpandVertical(true);

shell.open();