formdata_formattachment2.java

Eclipse从入门到精通源代码/第二篇 SWT_JFace篇(6-16章)

/**
 * @作者：陈刚
 * @Email：[e-mail]
 * @Blog：http://blog.csdn.net/glchengang
 */
package swt;

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.layout.FormLayout;
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 FormData_FormAttachment2 {
    public static void main(String[] args) {
        final Display display = Display.getDefault();
        final Shell shell = new Shell();
        shell.setSize(327, 253);
        shell.setText("SWT Application");
        //------------------新插入的界面核心代码------------------------

        shell.setLayout(new FormLayout());
        Text text1 = new Text(shell, SWT.BORDER);
        text1.setLayoutData(new FormData(100, 50));
        //定义并设置FormData
        FormData formData = new FormData();
        //以text1为基准偏移50像素
        FormAttachment formAttachment = new FormAttachment(text1, 50);
        formData.top = formAttachment;
        formData.left = formAttachment;
        //将button1应用FormData
        Button button1 = new Button(shell, SWT.NONE);
        button1.setText("button1");
        button1.setLayoutData(formData);

        //------------------END---------------------------------------------
        shell.layout();
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
    }
}