Question

flex复选框和下拉列表的几种用法整理

Answer 1

package fxw.xjtu.cn;

import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.MenuItem;

public class Test {

protected Shell shell;

/**
* Launch the application.
* @param args
*/
public static void main(String[] args) {
try {
Test window = new Test();
window.open();
} catch (Exception e) {
e.printStackTrace();
}
}

/**
* Open the window.
*/
public void open() {
Display display = Display.getDefault();
createContents();
shell.open();
shell.layout();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
}

/**
* Create contents of the window.
*/
protected void createContents() {
shell = new Shell();
shell.setSize(450, 300);
shell.setText("SWT Application");

Menu menu = new Menu(shell, SWT.BAR);
shell.setMenuBar(menu);

MenuItem menuItem = new MenuItem(menu, SWT.CASCADE);
menuItem.setText("\u4E3B\u83DC\u53551");

Menu menu_1 = new Menu(menuItem);
menuItem.setMenu(menu_1);

MenuItem menuItem_2 = new MenuItem(menu_1, SWT.CASCADE);
menuItem_2.setText("\u4E0B\u62C9\u83DC\u53551.1");

Menu menu_3 = new Menu(menuItem_2);
menuItem_2.setMenu(menu_3);

MenuItem menuItem_3 = new MenuItem(menu_3, SWT.CHECK);
menuItem_3.setText("\u590D\u9009\u68461");
menuItem_3.addSelectionListener(new SelectionAdapter(){
public void widgetSelected(SelectionEvent e){
MessageDialog.openInformation(shell, "菜单的监听器", "您选择了："+e.getSource());
}
});

MenuItem menuItem_4 = new MenuItem(menu_3, SWT.CHECK);
menuItem_4.setText("\u590D\u9009\u68462");
menuItem_4.addSelectionListener(new SelectionAdapter(){
public void widgetSelected(SelectionEvent e){
MessageDialog.openInformation(shell, "菜单的监听器", "您选择了："+e.getSource());
}
});

MenuItem menuItem_5 = new MenuItem(menu_3, SWT.CHECK);
menuItem_5.setText("\u590D\u9009\u68463");
menuItem_5.addSelectionListener(new SelectionAdapter(){
public void widgetSelected(SelectionEvent e){
MessageDialog.openInformation(shell, "菜单的监听器", "您选择了："+e.getSource());
}
});

new MenuItem(menu_3, SWT.SEPARATOR);

MenuItem menuItem_6 = new MenuItem(menu_3, SWT.RADIO);
menuItem_6.setText("\u5355\u9009\u68461");

MenuItem menuItem_7 = new MenuItem(menu_3, SWT.RADIO);
menuItem_7.setText("\u5355\u9009\u68462");

MenuItem menuItem_8 = new MenuItem(menu_1, SWT.NONE);
menuItem_8.setText("\u4E0B\u62C9\u83DC\u53551.2");

MenuItem menuItem_9 = new MenuItem(menu_1, SWT.NONE);
menuItem_9.setText("\u4E0B\u6765\u83DC\u53551.3");

MenuItem menuItem_1 = new MenuItem(menu, SWT.CASCADE);
menuItem_1.setText("\u4E3B\u83DC\u53552");

Menu menu_2 = new Menu(menuItem_1);
menuItem_1.setMenu(menu_2);

MenuItem menuItem_10 = new MenuItem(menu_2, SWT.NONE);
menuItem_10.setText("\u4E0B\u62C9\u83DC\u53552.1");

MenuItem menuItem_11 = new MenuItem(menu_2, SWT.NONE);
menuItem_11.setText("\u4E0B\u62C9\u83DC\u53552.2");

}
}
这个是用SWT写的，很好用。具体的应用就是个menuitem添加选中的监听器，这里是在复选框选中时，弹出消息框，显式该选项被选中。