в 17:44, 31 мая 2010

2010-05-31T17:44:26Z

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2010-05-31T15:21:14Z

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== Add Image to MenuItem ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.Shell;
public class MenuItemWithImage {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout());
Menu menuBar = new Menu(shell, SWT.BAR);
Menu fileMenu = new Menu(menuBar);
MenuItem fileItem = new MenuItem(menuBar, SWT.CASCADE | SWT.NO_RADIO_GROUP);
fileItem.setText("File");
fileItem.setMenu(fileMenu);
Image yourImage = new Image(shell.getDisplay(), "yourFile.gif");
MenuItem itema = new MenuItem(fileMenu, SWT.NONE);
itema.setText("Radio A");
itema.setImage(yourImage);
MenuItem itemb = new MenuItem(fileMenu, SWT.NONE);
itemb.setText("Radio B");
MenuItem itemc = new MenuItem(fileMenu, SWT.NONE);
itemc.setText("Radio C");
shell.setMenuBar(menuBar);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
}
}</source>



== CheckBox Menu ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.Shell;
public class CheckBoxMenuCreate {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout());
// Create the bar menu
Menu menuBar = new Menu(shell, SWT.BAR);
// Create the File item"s dropdown menu
Menu fileMenu = new Menu(menuBar);
// Create all the items in the bar menu
MenuItem fileItem = new MenuItem(menuBar, SWT.CASCADE);
fileItem.setText("File");
fileItem.setMenu(fileMenu);
// Create the second radio group
MenuItem itema = new MenuItem(fileMenu, SWT.CHECK);
itema.setText(" A");
MenuItem itemb = new MenuItem(fileMenu, SWT.CHECK);
itemb.setText(" B");
MenuItem itemc = new MenuItem(fileMenu, SWT.CHECK);
itemc.setText(" C");
shell.setMenuBar(menuBar);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
}
}</source>



== Create a radio menu item and deselects it ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.Shell;
public class RadioMenuItemDeselected {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout());
Menu menuBar = new Menu(shell, SWT.BAR);
Menu fileMenu = new Menu(menuBar);
MenuItem fileItem = new MenuItem(menuBar, SWT.CASCADE | SWT.NO_RADIO_GROUP);
fileItem.setText("File");
fileItem.setMenu(fileMenu);
MenuItem itema = new MenuItem(fileMenu, SWT.RADIO);
itema.setText("Radio A");
itema.setSelection(true);

MenuItem itemb = new MenuItem(fileMenu, SWT.RADIO);
itemb.setText("Radio B");
MenuItem itemc = new MenuItem(fileMenu, SWT.RADIO);
itemc.setText("Radio C");
shell.setMenuBar(menuBar);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
}
}</source>



== Create menu items as part of a radio group using the SWT.RADIO style ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.Shell;
public class RadioNoGroup {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout());
Menu menuBar = new Menu(shell, SWT.BAR);
Menu fileMenu = new Menu(menuBar);
MenuItem fileItem = new MenuItem(menuBar, SWT.CASCADE);
fileItem.setText("File");
fileItem.setMenu(fileMenu);
MenuItem itema = new MenuItem(fileMenu, SWT.RADIO);
itema.setText("Radio A");
MenuItem itemb = new MenuItem(fileMenu, SWT.RADIO);
itemb.setText("Radio B");
MenuItem itemc = new MenuItem(fileMenu, SWT.RADIO);
itemc.setText("Radio C");
shell.setMenuBar(menuBar);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
}
}</source>



== Disable MenuItem ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.Shell;
public class MenuItemDiabled {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout());
Menu menuBar = new Menu(shell, SWT.BAR);
Menu fileMenu = new Menu(menuBar);
MenuItem fileItem = new MenuItem(menuBar, SWT.CASCADE | SWT.NO_RADIO_GROUP);
fileItem.setText("File");
fileItem.setMenu(fileMenu);
MenuItem itema = new MenuItem(fileMenu, SWT.NONE);
itema.setText("Radio A");
itema.setEnabled(false);
MenuItem itemb = new MenuItem(fileMenu, SWT.NONE);
itemb.setText("Radio B");
MenuItem itemc = new MenuItem(fileMenu, SWT.NONE);
itemc.setText("Radio C");
shell.setMenuBar(menuBar);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
}
}</source>



== Set Accelerator for MenuItem ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.Shell;
public class MenuItemAcceletorSetting {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
Menu bar = new Menu(shell, SWT.BAR);
shell.setMenuBar(bar);
MenuItem fileItem = new MenuItem(bar, SWT.CASCADE);
fileItem.setText("&File");
Menu submenu = new Menu(shell, SWT.DROP_DOWN);
fileItem.setMenu(submenu);
MenuItem item = new MenuItem(submenu, SWT.PUSH);
item.setText("Select &All\tCtrl+A");
item.setAccelerator(SWT.MOD1 + "A");
shell.setSize(200, 200);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>



== Set CheckBox Menu selected ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.Shell;
public class CheckBoxSelected {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout());
Menu menuBar = new Menu(shell, SWT.BAR);
Menu fileMenu = new Menu(menuBar);
MenuItem fileItem = new MenuItem(menuBar, SWT.CASCADE | SWT.NO_RADIO_GROUP);
fileItem.setText("File");
fileItem.setMenu(fileMenu);
MenuItem itema = new MenuItem(fileMenu, SWT.CHECK);
itema.setText("Radio A");
itema.setSelection(true);

MenuItem itemb = new MenuItem(fileMenu, SWT.NONE);
itemb.setText("Radio B");
MenuItem itemc = new MenuItem(fileMenu, SWT.NONE);
itemc.setText("Radio C");
shell.setMenuBar(menuBar);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
}
}</source>



== Update a status line when an item is armed ==



<source lang="java">
/*******************************************************************************
* Copyright (c) 2000, 2004 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
/*
* Control example snippet: update a status line when an item is armed
*
* For a list of all SWT example snippets see
* http://www.eclipse.org/swt/snippets/
*
* @since 3.0
*/
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.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.Shell;
public class StatusLineUpdateWhenMenuItemArmed {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);

FormLayout layout = new FormLayout();
shell.setLayout(layout);

final Label label = new Label(shell, SWT.BORDER);
Listener armListener = new Listener() {
public void handleEvent(Event event) {
MenuItem item = (MenuItem) event.widget;
label.setText(item.getText());
label.update();
}
};
Listener showListener = new Listener() {
public void handleEvent(Event event) {
Menu menu = (Menu) event.widget;
MenuItem item = menu.getParentItem();
if (item != null) {
label.setText(item.getText());
label.update();
}
}
};
Listener hideListener = new Listener() {
public void handleEvent(Event event) {
label.setText("");
label.update();
}
};
FormData labelData = new FormData();
labelData.left = new FormAttachment(0);
labelData.right = new FormAttachment(100);
labelData.bottom = new FormAttachment(100);
label.setLayoutData(labelData);
Menu menuBar = new Menu(shell, SWT.BAR);
shell.setMenuBar(menuBar);
MenuItem fileItem = new MenuItem(menuBar, SWT.CASCADE);
fileItem.setText("File");
fileItem.addListener(SWT.Arm, armListener);
MenuItem editItem = new MenuItem(menuBar, SWT.CASCADE);
editItem.setText("Edit");
editItem.addListener(SWT.Arm, armListener);
Menu fileMenu = new Menu(shell, SWT.DROP_DOWN);
fileMenu.addListener(SWT.Hide, hideListener);
fileMenu.addListener(SWT.Show, showListener);
fileItem.setMenu(fileMenu);
String[] fileStrings = { "New", "Close", "Exit" };
for (int i = 0; i < fileStrings.length; i++) {
MenuItem item = new MenuItem(fileMenu, SWT.PUSH);
item.setText(fileStrings[i]);
item.addListener(SWT.Arm, armListener);
}
Menu editMenu = new Menu(shell, SWT.DROP_DOWN);
editMenu.addListener(SWT.Hide, hideListener);
editMenu.addListener(SWT.Show, showListener);
String[] editStrings = { "Cut", "Copy", "Paste" };
editItem.setMenu(editMenu);
for (int i = 0; i < editStrings.length; i++) {
MenuItem item = new MenuItem(editMenu, SWT.PUSH);
item.setText(editStrings[i]);
item.addListener(SWT.Arm, armListener);
}
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>

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Java Tutorial/SWT/MenuItem - История изменений

в 17:44, 31 мая 2010

Admin: 1 версия