刚刚解除swt，写了一小段代码，怎么样才能使这个界面里的控件，根据这个shell的大小，自动变化大小呢？

[malegebicaonima]

SashForm form  = new SashForm(tabFolder,SWT.HORIZONTAL|SWT.SMOOTH);
		form.setLayout(new FillLayout());
		
		
		Composite composite1_1 = new Composite(form, SWT.MULTI);
		//composite1_1.setLayout(new FillLayout(SWT.VERTICAL));
		Text text1_1 = new Text(composite1_1, SWT.BORDER);
		text1_1.setText("This is page 1");
		text1_1.setBounds(new Rectangle(10, 10, 100, 20));
		
		Text nnn = new Text(composite1_1, SWT.BORDER);
		nnn.setText("This is page 1sdadasdasdas");
		nnn.setBounds(new Rectangle(10, 50, 100, 20));
		
		
	
		Composite composite1_2 = new Composite(form, SWT.MULTI);
		composite1_2.setLayout(new FillLayout());
		StyledText text1_2 = new StyledText(composite1_2, SWT.BORDER);
		text1_2.setText("This is page 1543677");
		text1_2.setEditable(false);
		text1_2.setBounds(new Rectangle(500, 10, 100, 20));	

[malegebicaonima]

主要是这个问题，我想把text1_1和nnn ，这两个text根据form 拖动的位置，自动的变长或者变短。。。。应该怎么做啊？

[malegebicaonima]

0.0

[malegebicaonima]

0.0

[The_End_Of_The_World]

这个不太好写吧？