Mercurial > projects > dwt-samples
view jface/snippets/viewers/Snippet002TreeViewer.d @ 145:161f7698cfb8
Moved jface snippets to viewers subpackage, there are more with conflicting numbers for other packages
author | Frank Benoit <benoit@tionex.de> |
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date | Fri, 08 Aug 2008 14:40:21 +0200 |
parents | jface/snippets/Snippet002TreeViewer.d@cbba80cceb7a |
children |
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/******************************************************************************* * Copyright (c) 2006 Tom Schindl 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: * Tom Schindl - initial API and implementation * Port to the D programming language: * wbaxter at gmail dot com *******************************************************************************/ module snippets.viewers.Snippet002TreeViewer; import dwt.DWT; import dwtx.jface.viewers.ITreeContentProvider; import dwtx.jface.viewers.LabelProvider; import dwtx.jface.viewers.TreeViewer; import dwtx.jface.viewers.Viewer; import dwt.layout.FillLayout; import dwt.widgets.Display; import dwt.widgets.Shell; import dwt.dwthelper.utils; import tango.util.Convert; /** * A simple TreeViewer to demonstrate usage * * @author Tom Schindl <tom.schindl@bestsolution.at> * */ class Snippet002TreeViewer { private class MyContentProvider : ITreeContentProvider { /* (non-Javadoc) * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object) */ public Object[] getElements(Object inputElement) { return (cast(MyModel)inputElement).child/*.dup*/; } /* (non-Javadoc) * @see org.eclipse.jface.viewers.IContentProvider#dispose() */ public void dispose() { } /* (non-Javadoc) * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object) */ public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { } /* (non-Javadoc) * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object) */ public Object[] getChildren(Object parentElement) { return getElements(parentElement); } /* (non-Javadoc) * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object) */ public Object getParent(Object element) { if( element is null) { return null; } return (cast(MyModel)element).parent; } /* (non-Javadoc) * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object) */ public bool hasChildren(Object element) { return (cast(MyModel)element).child.length > 0; } } public class MyModel { public MyModel parent; public MyModel[] child; public int counter; public this(int counter, MyModel parent) { this.parent = parent; this.counter = counter; } public String toString() { String rv = "Item "; if( parent !is null ) { rv = parent.toString() ~ "."; } rv ~= to!(char[])(counter); return rv; } } public this(Shell shell) { TreeViewer v = new TreeViewer(shell); v.setLabelProvider(new LabelProvider()); v.setContentProvider(new MyContentProvider()); v.setInput(createModel()); } private MyModel createModel() { MyModel root = new MyModel(0,null); root.counter = 0; MyModel tmp; for( int i = 1; i < 10; i++ ) { tmp = new MyModel(i, root); root.child ~= tmp; for( int j = 1; j < i; j++ ) { tmp.child ~= new MyModel(j,tmp); } } return root; } } void main() { Display display = new Display (); Shell shell = new Shell(display); shell.setLayout(new FillLayout()); new Snippet002TreeViewer(shell); shell.open (); while (!shell.isDisposed ()) { if (!display.readAndDispatch ()) display.sleep (); } display.dispose (); }