pmpeditormenu.java

自己建立的项目

package com.swtSample.text;

import org.eclipse.swt.*;
import org.eclipse.swt.events.*;
import org.eclipse.swt.widgets.*;

/**
 * This class contains the menu for the Poor Man's Programming Editor application
 */
public class PmpEditorMenu {
  // The underlying menu this class wraps
  Menu menu = null;

  /**
   * Constructs a PmpEditorMenu
   * 
   * @param shell the parent shell
   */
  public PmpEditorMenu(final Shell shell) {
    // Create the menu
    menu = new Menu(shell, SWT.BAR);

    // Create the File top-level menu
    MenuItem item = new MenuItem(menu, SWT.CASCADE);
    item.setText("File");
    Menu dropMenu = new Menu(shell, SWT.DROP_DOWN);
    item.setMenu(dropMenu);

    // Create File->Open
    item = new MenuItem(dropMenu, SWT.NULL);
    item.setText("Open...\tCtrl+O");
    item.setAccelerator(SWT.CTRL + 'O');
    item.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent event) {
        PmpEditor.getApp().openFile();
      }
    });

    // Create File->Save
    item = new MenuItem(dropMenu, SWT.NULL);
    item.setText("Save\tCtrl+S");
    item.setAccelerator(SWT.CTRL + 'S');
    item.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent event) {
        PmpEditor.getApp().saveFile();
      }
    });

    // Create File->Save As
    item = new MenuItem(dropMenu, SWT.NULL);
    item.setText("Save As...");
    item.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent event) {
        PmpEditor.getApp().saveFileAs();
      }
    });

    new MenuItem(dropMenu, SWT.SEPARATOR);

    // Create File->Print
    item = new MenuItem(dropMenu, SWT.NULL);
    item.setText("Print\tCtrl+P");
    item.setAccelerator(SWT.CTRL + 'P');
    item.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent event) {
        PmpEditor.getApp().print();
      }
    });

    new MenuItem(dropMenu, SWT.SEPARATOR);

    // Create File->Exit
    item = new MenuItem(dropMenu, SWT.NULL);
    item.setText("Exit\tAlt+F4");
    item.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent event) {
        shell.close();
      }
    });

    // Create Edit
    item = new MenuItem(menu, SWT.CASCADE);
    item.setText("Edit");
    dropMenu = new Menu(shell, SWT.DROP_DOWN);
    item.setMenu(dropMenu);

    // Create Edit->Cut
    item = new MenuItem(dropMenu, SWT.NULL);
    item.setText("Cut\tCtrl+X");
    item.setAccelerator(SWT.CTRL + 'X');
    item.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent event) {
        PmpEditor.getApp().cut();
      }
    });

    // Create Edit->Copy
    item = new MenuItem(dropMenu, SWT.NULL);
    item.setText("Copy\tCtrl+C");
    item.setAccelerator(SWT.CTRL + 'C');
    item.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent event) {
        PmpEditor.getApp().copy();
      }
    });

    // Create Edit->Paste
    item = new MenuItem(dropMenu, SWT.NULL);
    item.setText("Paste\tCtrl+V");
    item.setAccelerator(SWT.CTRL + 'V');
    item.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent event) {
        PmpEditor.getApp().paste();
      }
    });

    new MenuItem(dropMenu, SWT.SEPARATOR);

    // Create Select All
    item = new MenuItem(dropMenu, SWT.NULL);
    item.setText("Select All\tCtrl+A");
    item.setAccelerator(SWT.CTRL + 'A');
    item.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent event) {
        PmpEditor.getApp().selectAll();
      }
    });

    new MenuItem(dropMenu, SWT.SEPARATOR);

    // Create Undo
    item = new MenuItem(dropMenu, SWT.NULL);
    item.setText("Undo\tCtrl+Z");
    item.setAccelerator(SWT.CTRL + 'Z');
    item.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent event) {
        PmpEditor.getApp().undo();
      }
    });

    new MenuItem(dropMenu, SWT.SEPARATOR);

    // Create Word Wrap
    final MenuItem wwItem = new MenuItem(dropMenu, SWT.CHECK);
    wwItem.setText("Word Wrap\tCtrl+W");
    wwItem.setAccelerator(SWT.CTRL + 'W');
    wwItem.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent event) {
        PmpEditor.getApp().toggleWordWrap();
      }
    });
    wwItem.addArmListener(new ArmListener() {
      public void widgetArmed(ArmEvent event) {
        wwItem.setSelection(PmpEditor.getApp().getWordWrap());
      }
    });

    // Create Help
    item = new MenuItem(menu, SWT.CASCADE);
    item.setText("Help");
    dropMenu = new Menu(shell, SWT.DROP_DOWN);
    item.setMenu(dropMenu);

    // Create Help->About
    item = new MenuItem(dropMenu, SWT.NULL);
    item.setText("About\tCtrl+A");
    item.setAccelerator(SWT.CTRL + 'A');
    item.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent event) {
        PmpEditor.getApp().about();
      }
    });
  }

  /**
   * Gets the underlying menu
   * 
   * @return Menu
   */
  public Menu getMenu() {
    return menu;
  }
}