в 17:44, 31 мая 2010

2010-05-31T17:44:26Z

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2010-05-31T15:21:43Z

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== Add One Popup Menu to two different Controls ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.ruposite;
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 PopupMenuAddTwoControls {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);

Composite c1 = new Composite(shell, SWT.BORDER);
c1.setSize(100, 100);

Composite c2 = new Composite(shell, SWT.BORDER);
c2.setBounds(100, 0, 100, 100);

Menu menu = new Menu(shell, SWT.POP_UP);
MenuItem item = new MenuItem(menu, SWT.PUSH);
item.setText("Popup");

c1.setMenu(menu);
c2.setMenu(menu);

shell.setMenu(menu);
shell.setSize(300, 300);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>



== Creating a Popup Menu ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
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 PopupMenuCreate {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout());
Button bn = new Button(shell, SWT.FLAT);
bn.setText("Right Click to see the popup menu");

Menu popupMenu = new Menu(bn);
MenuItem newItem = new MenuItem(popupMenu, SWT.CASCADE);
newItem.setText("New");
MenuItem refreshItem = new MenuItem(popupMenu, SWT.NONE);
refreshItem.setText("Refresh");
MenuItem deleteItem = new MenuItem(popupMenu, SWT.NONE);
deleteItem.setText("Delete");
Menu newMenu = new Menu(popupMenu);
newItem.setMenu(newMenu);
MenuItem shortcutItem = new MenuItem(newMenu, SWT.NONE);
shortcutItem.setText("Shortcut");
MenuItem iconItem = new MenuItem(newMenu, SWT.NONE);
iconItem.setText("Icon");
bn.setMenu(popupMenu);

shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
}
}</source>



== PopupMenu is disposed with the composite ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.ruposite;
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 PopupComposite {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout(2, true));
final Composite composite1 = new Composite(shell, SWT.BORDER);
composite1.setBackground(display.getSystemColor(SWT.COLOR_BLACK));
final Composite composite2 = new Composite(shell, SWT.BORDER);
composite2.setBackground(display.getSystemColor(SWT.COLOR_BLUE));
Menu menu = new Menu(composite1);
MenuItem menuItem = new MenuItem(menu, SWT.PUSH);
menuItem.setText("Popup menu");
menuItem.addDisposeListener(new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
System.out.println("Menu item is disposed.");
}
});
menuItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
System.out.println("Dispsoing ...");
//composite2.setMenu(null);
composite2.dispose();
}
});
composite1.setMenu(menu);
composite2.setMenu(menu);
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
// If no more entries in event queue
display.sleep();
}
}
display.dispose();
}
}</source>



== PopupMenu is not disposed with the composite ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.ruposite;
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 PopupMenuComposite {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout(2, true));
final Composite composite1 = new Composite(shell, SWT.BORDER);
composite1.setBackground(display.getSystemColor(SWT.COLOR_BLACK));
final Composite composite2 = new Composite(shell, SWT.BORDER);
composite2.setBackground(display.getSystemColor(SWT.COLOR_BLUE));
Menu menu = new Menu(composite1);
MenuItem menuItem = new MenuItem(menu, SWT.PUSH);
menuItem.setText("Popup menu");
menuItem.addDisposeListener(new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
System.out.println("Menu item is disposed.");
}
});
menuItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
System.out.println("Dispsoing ...");
composite2.setMenu(null);
composite2.dispose();
}
});
composite1.setMenu(menu);
composite2.setMenu(menu);
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
// If no more entries in event queue
display.sleep();
}
}
display.dispose();
}
}</source>



== Popup Radio MenuItem ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
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 MenuItemPopupRadio {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
Menu menu = new Menu(shell, SWT.POP_UP);
for (int i = 0; i < 4; i++) {
MenuItem item = new MenuItem(menu, SWT.RADIO);
item.setText("Item " + i);
item.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
MenuItem item = (MenuItem) e.widget;
if (item.getSelection()) {
System.out.println(item + " selected");
} else {
System.out.println(item + " unselected");
}
}
});
}
shell.setMenu(menu);
shell.setSize(300, 300);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>



== Show a popup menu (wait for it to close) ==



<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
*******************************************************************************/

/*
* Menu example snippet: show a popup menu (wait for it to close)
*
* 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.widgets.Display;
import org.eclipse.swt.widgets.Event;
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 PopupMenuShow {
public static void main(String[] args) {
final Display display = new Display();
final Shell shell = new Shell(display);
shell.addListener(SWT.MenuDetect, new Listener() {
public void handleEvent(Event event) {
Menu menu = new Menu(shell, SWT.POP_UP);
MenuItem item = new MenuItem(menu, SWT.PUSH);
item.setText("Menu Item");
item.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event e) {
System.out.println("Item Selected");
}
});
menu.setLocation(event.x, event.y);
menu.setVisible(true);
while (!menu.isDisposed() && menu.isVisible()) {
if (!display.readAndDispatch())
display.sleep();
}
menu.dispose();
}
});
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>

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Java Tutorial/SWT/PopupMenu - История изменений

в 17:44, 31 мая 2010

Admin: 1 версия