Mercurial > projects > dwt-samples
diff snippets/clipboard/Snippet122.d @ 117:8cdaac0dc743
Added more snippets from TomD
author | Frank Benoit <benoit@tionex.de> |
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date | Sat, 12 Jul 2008 20:09:06 +0200 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/snippets/clipboard/Snippet122.d Sat Jul 12 20:09:06 2008 +0200 @@ -0,0 +1,93 @@ +/******************************************************************************* + * 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 + * D Port: + * Thomas Demmer <t_demmer AT web DOT de> + *******************************************************************************/ +module clipboard.Snippet122; +/* + * Clipboard example snippet: enable/disable menu depending on clipboard content availability + * + * For a list of all SWT example snippets see + * http://www.eclipse.org/swt/snippets/ + * + * @since 3.0 + */ +import dwt.DWT; +import dwt.dnd.Clipboard; +import dwt.dnd.TextTransfer; +import dwt.dnd.Transfer; +import dwt.dnd.TransferData; +import dwt.events.MenuAdapter; +import dwt.events.MenuEvent; +import dwt.events.SelectionAdapter; +import dwt.events.SelectionListener; +import dwt.layout.FillLayout; +import dwt.widgets.Display; +import dwt.widgets.Menu; +import dwt.widgets.MenuItem; +import dwt.widgets.Shell; +import dwt.widgets.Text; + +import dwt.dwthelper.utils; + +public static void main(String[] args) { + Display display = new Display(); + Clipboard cb = new Clipboard(display); + Shell shell = new Shell(display); + shell.setLayout(new FillLayout()); + Text text = new Text(shell, DWT.BORDER | DWT.MULTI | DWT.WRAP); + Menu menu = new Menu(shell, DWT.POP_UP); + MenuItem copyItem = new MenuItem(menu, DWT.PUSH); + copyItem.setText("Copy"); + copyItem.addSelectionListener(new class() SelectionAdapter{ + public void widgetSelected(SelectionEvent e) { + String selection = text.getSelectionText(); + if (selection.length == 0) return; + Object[] data = [ new ArrayWrapperString(selection) ]; + Transfer[] types = [ TextTransfer.getInstance() ]; + cb.setContents(data, types); + } + }); + MenuItem pasteItem = new MenuItem(menu, DWT.PUSH); + pasteItem.setText ("Paste"); + pasteItem.addSelectionListener(new class() SelectionAdapter{ + public void widgetSelected(SelectionEvent e) { + String string = stringcast(cb.getContents(TextTransfer.getInstance())); + if (string !is null) text.insert(string); + } + }); + menu.addMenuListener(new class() MenuAdapter{ + public void menuShown(MenuEvent e) { + // is copy valid? + String selection = text.getSelectionText(); + copyItem.setEnabled(selection.length > 0); + // is paste valid? + TransferData[] available = cb.getAvailableTypes(); + bool enabled = false; + for (int i = 0; i < available.length; i++) { + if (TextTransfer.getInstance().isSupportedType(available[i])) { + enabled = true; + break; + } + } + pasteItem.setEnabled(enabled); + } + }); + + text.setMenu (menu); + shell.setSize(200, 200); + shell.open(); + while (!shell.isDisposed()) { + if (!display.readAndDispatch()) + display.sleep(); + } + cb.dispose(); + display.dispose(); +}