Mercurial > projects > dwt2
diff org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet8.d @ 28:69b1fa94a4a8
Added SWT snippets
author | Frank Benoit <benoit@tionex.de> |
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date | Sun, 22 Mar 2009 15:17:04 +0100 |
parents | |
children | 9f4c18c268b2 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet8.d Sun Mar 22 15:17:04 2009 +0100 @@ -0,0 +1,79 @@ +/******************************************************************************* + * 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: + * Jesse Phillips <Jesse.K.Phillips+D> gmail.com + *******************************************************************************/ +module org.eclipse.swt.snippets.Snippet8; + +/* + * Tree example snippet: create a tree (lazy) + * + * For a list of all SWT example snippets see + * http://www.eclipse.org/swt/snippets/ + */ + +import org.eclipse.swt.SWT; +import org.eclipse.swt.layout.FillLayout; +import org.eclipse.swt.graphics.Point; +import org.eclipse.swt.widgets.Display; +import org.eclipse.swt.widgets.Event; +import org.eclipse.swt.widgets.Listener; +import org.eclipse.swt.widgets.Shell; +import org.eclipse.swt.widgets.Tree; +import org.eclipse.swt.widgets.TreeItem; + +import java.lang.all; +import tango.io.FilePath; +import tango.io.FileSystem; + +void main () { + auto display = new Display (); + auto shell = new Shell (display); + shell.setText ("Lazy Tree"); + shell.setLayout (new FillLayout ()); + auto tree = new Tree (shell, SWT.BORDER); + auto roots = FileSystem.roots(); + foreach (file; roots) { + auto root = new TreeItem (tree, 0); + root.setText (file); + root.setData (new FilePath(file)); + new TreeItem (root, 0); + } + tree.addListener (SWT.Expand, new class Listener { + public void handleEvent (Event event) { + auto root = cast(TreeItem) event.item; + auto items = root.getItems (); + foreach(item; items) { + if (item.getData () !is null) return; + item.dispose (); + } + auto file = cast(FilePath) root.getData (); + auto files = file.toList(); + if (files is null) return; + foreach (f; files) { + TreeItem item = new TreeItem (root, 0); + item.setText (f.toString()); + item.setData (f); + if (f.isFolder()) { + new TreeItem (item, 0); + } + } + } + }); + auto size = tree.computeSize (300, SWT.DEFAULT); + auto width = Math.max (300, size.x); + auto height = Math.max (300, size.y); + shell.setSize (shell.computeSize (width, height)); + shell.open (); + while (!shell.isDisposed ()) { + if (!display.readAndDispatch ()) display.sleep (); + } + display.dispose (); +}