swt组件实例--演示Display、Shell以及Text、Button等组件的用法

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package swt;

import org.eclipse.swt.SWT;

import org.eclipse.swt.events.SelectionAdapter;

import org.eclipse.swt.events.SelectionEvent;

import org.eclipse.swt.layout.FillLayout;

import org.eclipse.swt.widgets.Button;

import org.eclipse.swt.widgets.Display;

import org.eclipse.swt.widgets.Shell;

import org.eclipse.swt.widgets.Text;

public class HelloSwt_01 {

    public static void main(String[] args) {

        //负责和操作系统交互，如读取底层事件等

        Display display=new Display();

        //窗口

        final Shell topShell=new Shell(display,SWT.SHELL_TRIM|SWT.BORDER);

        topShell.setText("这是一个窗口");

        topShell.setSize(800, 500);

        topShell.setLayout(new FillLayout());

        //不设置布局不显示

//      topShell.setLayout(new GridLayout());

        Text text=new Text(topShell,SWT.BORDER);

        text.setText("文本框");

        text.selectAll();

//      text.copy();

//      text.paste();

//      text.clearSelection();

        new Text(topShell, SWT.SINGLE|SWT.NONE).pack();

//      new Text(topShell, SWT.MULTI|SWT.WRAP).setLayoutData(new GridData(GridData.FILL_BOTH));

        Button button=new org.eclipse.swt.widgets.Button(topShell, SWT.BORDER);

        button.setText("创建子窗口");

        button.addSelectionListener(new SelectionAdapter() {

            @Override

            public void widgetSelected(SelectionEvent e) {

                creatMuti(topShell,"子窗口");

            }

        });

        button.pack();

        text.pack();

//      topShell.pack();

        topShell.open();

//      Shell dialogShell=new Shell(topShell,SWT.SHELL_TRIM|SWT.PRIMARY_MODAL);

//      dialogShell.setSize(200, 100);

//      dialogShell.pack();

//      dialogShell.open();

        while(!topShell.isDisposed()){

            if (!display.readAndDispatch()) {

                display.sleep();

            }

        }

        display.dispose();

    }

    public static Shell creatMuti(Shell parent,String name){

        Shell childShell=new Shell(parent, SWT.DIALOG_TRIM);

        childShell.setText(name);

        childShell.setSize(200, 200);

        childShell.open();

        return childShell;

    }

}