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comparison jface/snippets/viewers/Snippet002TreeViewer.d @ 145:161f7698cfb8

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Moved jface snippets to viewers subpackage, there are more with conflicting numbers for other packages
author Frank Benoit <benoit@tionex.de>
date Fri, 08 Aug 2008 14:40:21 +0200
parents jface/snippets/Snippet002TreeViewer.d@cbba80cceb7a
children
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144:7248e4c09c4f 145:161f7698cfb8
1 /*******************************************************************************
2 * Copyright (c) 2006 Tom Schindl and others.
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Eclipse Public License v1.0
5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html
7 *
8 * Contributors:
9 * Tom Schindl - initial API and implementation
10 * Port to the D programming language:
11 * wbaxter at gmail dot com
12 *******************************************************************************/
13
14 module snippets.viewers.Snippet002TreeViewer;
15
16 import dwt.DWT;
17 import dwtx.jface.viewers.ITreeContentProvider;
18 import dwtx.jface.viewers.LabelProvider;
19 import dwtx.jface.viewers.TreeViewer;
20 import dwtx.jface.viewers.Viewer;
21 import dwt.layout.FillLayout;
22 import dwt.widgets.Display;
23 import dwt.widgets.Shell;
24
25 import dwt.dwthelper.utils;
26
27 import tango.util.Convert;
28
29 /**
30 * A simple TreeViewer to demonstrate usage
31 *
32 * @author Tom Schindl <tom.schindl@bestsolution.at>
33 *
34 */
35 class Snippet002TreeViewer {
36 private class MyContentProvider : ITreeContentProvider {
37
38 /* (non-Javadoc)
39 * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
40 */
41 public Object[] getElements(Object inputElement) {
42 return (cast(MyModel)inputElement).child/*.dup*/;
43 }
44
45 /* (non-Javadoc)
46 * @see org.eclipse.jface.viewers.IContentProvider#dispose()
47 */
48 public void dispose() {
49
50 }
51
52 /* (non-Javadoc)
53 * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
54 */
55 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
56
57 }
58
59 /* (non-Javadoc)
60 * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object)
61 */
62 public Object[] getChildren(Object parentElement) {
63 return getElements(parentElement);
64 }
65
66 /* (non-Javadoc)
67 * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object)
68 */
69 public Object getParent(Object element) {
70 if( element is null) {
71 return null;
72 }
73
74 return (cast(MyModel)element).parent;
75 }
76
77 /* (non-Javadoc)
78 * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object)
79 */
80 public bool hasChildren(Object element) {
81 return (cast(MyModel)element).child.length > 0;
82 }
83
84 }
85
86 public class MyModel {
87 public MyModel parent;
88 public MyModel[] child;
89 public int counter;
90
91 public this(int counter, MyModel parent) {
92 this.parent = parent;
93 this.counter = counter;
94 }
95
96 public String toString() {
97 String rv = "Item ";
98 if( parent !is null ) {
99 rv = parent.toString() ~ ".";
100 }
101
102 rv ~= to!(char[])(counter);
103
104 return rv;
105 }
106 }
107
108 public this(Shell shell) {
109 TreeViewer v = new TreeViewer(shell);
110 v.setLabelProvider(new LabelProvider());
111 v.setContentProvider(new MyContentProvider());
112 v.setInput(createModel());
113 }
114
115 private MyModel createModel() {
116 MyModel root = new MyModel(0,null);
117 root.counter = 0;
118
119 MyModel tmp;
120 for( int i = 1; i < 10; i++ ) {
121 tmp = new MyModel(i, root);
122 root.child ~= tmp;
123 for( int j = 1; j < i; j++ ) {
124 tmp.child ~= new MyModel(j,tmp);
125 }
126 }
127
128 return root;
129 }
130
131 }
132
133
134 void main() {
135 Display display = new Display ();
136 Shell shell = new Shell(display);
137 shell.setLayout(new FillLayout());
138 new Snippet002TreeViewer(shell);
139 shell.open ();
140
141 while (!shell.isDisposed ()) {
142 if (!display.readAndDispatch ()) display.sleep ();
143 }
144
145 display.dispose ();
146 }