ScrolledComposite 的 setMinSize一般设为子控件的大小,这样可以保证滚动条的范围就是子控件的范围
代码如下,
public class Scrolled {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout(2,false));
//shell.setLayout(new FillLayout(SWT.HORIZONTAL));
Composite content = new Composite(shell, SWT.BORDER);
// content.setLayoutData(new GridData(SWT.LEFT,SWT.CENTER,false,false));
content.setLayoutData(new GridData(SWT.FILL,SWT.FILL,true,true));
Composite sidebar = new Composite(shell, SWT.BORDER);
sidebar.setLayout(new FillLayout(SWT.VERTICAL));
// sidebar.setLayoutData(new GridData(SWT.LEFT,SWT.CENTER,false,false));
sidebar.setLayoutData(new GridData(SWT.FILL,SWT.FILL,false,true));
Composite cc = new Composite(sidebar, SWT.BORDER);
ScrolledComposite sc = new ScrolledComposite(sidebar, SWT.BORDER
| SWT.V_SCROLL | SWT.H_SCROLL);
sc.setLayout(new GridLayout(1,true));
Composite c = new Composite(sc, SWT.NONE);
// c.setSize(400, 400);
c.setLayout(new GridLayout(1, true));
for(int i = 0; i < 1000; i++){
new Button(c, SWT.PUSH).setText("Text");
}
sc.setMinSize(c.computeSize(SWT.DEFAULT, SWT.DEFAULT));
sc.setContent(c);
sc.setExpandHorizontal(true);
sc.setExpandVertical(true);
sc.setAlwaysShowScrollBars(true);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}