org.eclipse.swt.widgets.Slider#setLayoutData ( )源码实例Demo

private void createSlider(int style) {
    fSlider = new Slider(this, SWT.VERTICAL);
    fSlider.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, true));
    fSlider.setValues(0, 0, SLIDER_MAX, SLIDER_MAX, 1, 1);
    fSlider.addSelectionListener(this);
    fSlider.addMouseListener(this);
    if ((style & SWT.V_SCROLL) == 0) {
        fSlider.setVisible(false);
    }
}
 

protected void placeComponents( int style )
{
	GridLayout gl = new GridLayout( 1, false );
	gl.marginBottom = 0;
	gl.marginHeight = 0;
	gl.marginLeft = 0;
	gl.marginRight = 0;
	gl.marginTop = 0;
	gl.marginWidth = 0;
	this.setLayout( gl );
	
	slider = new Slider( this, style );
	GridData gd = new GridData( GridData.FILL_BOTH );
	slider.setLayoutData( gd );
}
 

public static void main(final String[] args) {
	final Display display = new Display();
	final Shell shell = new Shell(display);
	shell.setText("FontAwesome Snippet");
	shell.setSize(1000, 600);
	shell.setLayout(new GridLayout(2, false));

	fScrolledComposite = new ScrolledComposite(shell, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
	fScrolledComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1));
	fScrolledComposite.setAlwaysShowScrollBars(false);
	fScrolledComposite.setExpandHorizontal(true);
	fScrolledComposite.setExpandVertical(true);

	Composite composite = new Composite(fScrolledComposite, SWT.NONE);
	fScrolledComposite.setContent(composite);

	RowLayout rowLayout = new RowLayout(SWT.HORIZONTAL);
	rowLayout.marginTop = 5;
	rowLayout.marginRight = 5;
	rowLayout.marginLeft = 5;
	rowLayout.marginBottom = 5;
	rowLayout.pack = false;
	composite.setLayout(rowLayout);
	buildComposite(composite);
	calcMinsize(composite);
	shell.layout(true, true);

	fFontLabel = new Label(shell, SWT.NONE);
	fFontLabel.setText("Font size (22)");


	fSlider = new Slider(shell, SWT.NONE);
	fSlider.addListener(SWT.MouseUp, e -> {
		shell.setRedraw(false);
		Arrays.asList(composite.getChildren()).forEach(c -> c.dispose());
		fFontSize = fSlider.getSelection();
		buildComposite(composite);
		fFontLabel.setText("Font size (" + fFontSize + ")");
		shell.setRedraw(true);

		shell.layout(true, true);
		calcMinsize(composite);
	});
	fSlider.setPageIncrement(1);
	fSlider.setMaximum(150);
	fSlider.setMinimum(4);
	fSlider.setSelection(22);
	fSlider.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1));
	shell.open();
	while (!shell.isDisposed()) {
		if (!display.readAndDispatch()) {
			display.sleep();
		}
	}
	display.dispose();

}