|
1
|
package eu.etaxonomy.taxeditor;
|
|
2
|
|
|
3
|
import java.util.ArrayList;
|
|
4
|
|
|
5
|
import org.eclipse.jface.viewers.IStructuredContentProvider;
|
|
6
|
import org.eclipse.jface.viewers.ITreeContentProvider;
|
|
7
|
import org.eclipse.jface.viewers.LabelProvider;
|
|
8
|
import org.eclipse.jface.viewers.TreeViewer;
|
|
9
|
import org.eclipse.jface.viewers.Viewer;
|
|
10
|
import org.eclipse.swt.SWT;
|
|
11
|
import org.eclipse.swt.graphics.Image;
|
|
12
|
import org.eclipse.swt.widgets.Composite;
|
|
13
|
import org.eclipse.ui.ISharedImages;
|
|
14
|
import org.eclipse.ui.PlatformUI;
|
|
15
|
import org.eclipse.ui.part.ViewPart;
|
|
16
|
|
|
17
|
public class NavigationView extends ViewPart {
|
|
18
|
public static final String ID = "eu.etaxonomy.taxeditor.navigationView";
|
|
19
|
private TreeViewer viewer;
|
|
20
|
|
|
21
|
class TreeObject {
|
|
22
|
private String name;
|
|
23
|
private TreeParent parent;
|
|
24
|
|
|
25
|
public TreeObject(String name) {
|
|
26
|
this.name = name;
|
|
27
|
}
|
|
28
|
public String getName() {
|
|
29
|
return name;
|
|
30
|
}
|
|
31
|
public void setParent(TreeParent parent) {
|
|
32
|
this.parent = parent;
|
|
33
|
}
|
|
34
|
public TreeParent getParent() {
|
|
35
|
return parent;
|
|
36
|
}
|
|
37
|
public String toString() {
|
|
38
|
return getName();
|
|
39
|
}
|
|
40
|
}
|
|
41
|
|
|
42
|
class TreeParent extends TreeObject {
|
|
43
|
private ArrayList children;
|
|
44
|
public TreeParent(String name) {
|
|
45
|
super(name);
|
|
46
|
children = new ArrayList();
|
|
47
|
}
|
|
48
|
public void addChild(TreeObject child) {
|
|
49
|
children.add(child);
|
|
50
|
child.setParent(this);
|
|
51
|
}
|
|
52
|
public void removeChild(TreeObject child) {
|
|
53
|
children.remove(child);
|
|
54
|
child.setParent(null);
|
|
55
|
}
|
|
56
|
public TreeObject[] getChildren() {
|
|
57
|
return (TreeObject[]) children.toArray(new TreeObject[children.size()]);
|
|
58
|
}
|
|
59
|
public boolean hasChildren() {
|
|
60
|
return children.size()>0;
|
|
61
|
}
|
|
62
|
}
|
|
63
|
|
|
64
|
class ViewContentProvider implements IStructuredContentProvider,
|
|
65
|
ITreeContentProvider {
|
|
66
|
|
|
67
|
public void inputChanged(Viewer v, Object oldInput, Object newInput) {
|
|
68
|
}
|
|
69
|
|
|
70
|
public void dispose() {
|
|
71
|
}
|
|
72
|
|
|
73
|
public Object[] getElements(Object parent) {
|
|
74
|
return getChildren(parent);
|
|
75
|
}
|
|
76
|
|
|
77
|
public Object getParent(Object child) {
|
|
78
|
if (child instanceof TreeObject) {
|
|
79
|
return ((TreeObject)child).getParent();
|
|
80
|
}
|
|
81
|
return null;
|
|
82
|
}
|
|
83
|
|
|
84
|
public Object[] getChildren(Object parent) {
|
|
85
|
if (parent instanceof TreeParent) {
|
|
86
|
return ((TreeParent)parent).getChildren();
|
|
87
|
}
|
|
88
|
return new Object[0];
|
|
89
|
}
|
|
90
|
|
|
91
|
public boolean hasChildren(Object parent) {
|
|
92
|
if (parent instanceof TreeParent)
|
|
93
|
return ((TreeParent)parent).hasChildren();
|
|
94
|
return false;
|
|
95
|
}
|
|
96
|
}
|
|
97
|
|
|
98
|
class ViewLabelProvider extends LabelProvider {
|
|
99
|
|
|
100
|
public String getText(Object obj) {
|
|
101
|
return obj.toString();
|
|
102
|
}
|
|
103
|
public Image getImage(Object obj) {
|
|
104
|
String imageKey = ISharedImages.IMG_OBJ_ELEMENT;
|
|
105
|
if (obj instanceof TreeParent)
|
|
106
|
imageKey = ISharedImages.IMG_OBJ_FOLDER;
|
|
107
|
return PlatformUI.getWorkbench().getSharedImages().getImage(imageKey);
|
|
108
|
}
|
|
109
|
}
|
|
110
|
|
|
111
|
/**
|
|
112
|
* We will set up a dummy model to initialize tree heararchy. In real
|
|
113
|
* code, you will connect to a real model and expose its hierarchy.
|
|
114
|
*/
|
|
115
|
private TreeObject createDummyModel() {
|
|
116
|
TreeObject to1 = new TreeObject("Inbox");
|
|
117
|
TreeObject to2 = new TreeObject("Drafts");
|
|
118
|
TreeObject to3 = new TreeObject("Sent");
|
|
119
|
TreeParent p1 = new TreeParent("me@this.com");
|
|
120
|
p1.addChild(to1);
|
|
121
|
p1.addChild(to2);
|
|
122
|
p1.addChild(to3);
|
|
123
|
|
|
124
|
TreeObject to4 = new TreeObject("Inbox");
|
|
125
|
TreeParent p2 = new TreeParent("other@aol.com");
|
|
126
|
p2.addChild(to4);
|
|
127
|
|
|
128
|
TreeParent root = new TreeParent("");
|
|
129
|
root.addChild(p1);
|
|
130
|
root.addChild(p2);
|
|
131
|
return root;
|
|
132
|
}
|
|
133
|
|
|
134
|
/**
|
|
135
|
* This is a callback that will allow us to create the viewer and initialize
|
|
136
|
* it.
|
|
137
|
*/
|
|
138
|
public void createPartControl(Composite parent) {
|
|
139
|
viewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
|
|
140
|
viewer.setContentProvider(new ViewContentProvider());
|
|
141
|
viewer.setLabelProvider(new ViewLabelProvider());
|
|
142
|
viewer.setInput(createDummyModel());
|
|
143
|
}
|
|
144
|
|
|
145
|
/**
|
|
146
|
* Passing the focus request to the viewer's control.
|
|
147
|
*/
|
|
148
|
public void setFocus() {
|
|
149
|
viewer.getControl().setFocus();
|
|
150
|
}
|
|
151
|
}
|