我正在尝试创建一个 Eclipse 插件，该插件创建一个带有两列树表的视图。我目前正在使用 eclipse 提供的示例视图模板，但我无法弄清楚如何为要显示的不同列指定不同的数据。这是代码：
public class Variables extends ViewPart {
/**
* The ID of the view as specified by the extension.
*/
public static final String ID = "com.amazon.funce.views.Variables";
private TreeViewer viewer;
private DrillDownAdapter drillDownAdapter;
private Action action1;
private Action action2;
private Action doubleClickAction;
/*
* The content provider class is responsible for
* providing objects to the view. It can wrap
* existing objects in adapters or simply return
* objects as-is. These objects may be sensitive
* to the current input of the view, or ignore
* it and always show the same content
* (like Task List, for example).
*/
class TreeObject implements IAdaptable {
private String name;
private TreeParent parent;
public TreeObject(String name) {
this.name = name;
}
public String getName() {
return name;
}
public void setParent(TreeParent parent) {
this.parent = parent;
}
public TreeParent getParent() {
return parent;
}
public String toString() {
return getName();
}
public Object getAdapter(Class key) {
return null;
}
}
class TreeParent extends TreeObject {
private ArrayList children;
public TreeParent(String name) {
super(name);
children = new ArrayList();
}
public void addChild(TreeObject child) {
children.add(child);
child.setParent(this);
}
public void removeChild(TreeObject child) {
children.remove(child);
child.setParent(null);
}
public TreeObject [] getChildren() {
return (TreeObject [])children.toArray(new TreeObject[children.size()]);
}
public boolean hasChildren() {
return children.size()>0;
}
}
class ViewContentProvider implements IStructuredContentProvider,
ITreeContentProvider {
private TreeParent invisibleRoot;
public void inputChanged(Viewer v, Object oldInput, Object newInput) {
}
public void dispose() {
}
public Object[] getElements(Object parent) {
if (parent.equals(getViewSite())) {
if (invisibleRoot==null) initialize();
return getChildren(invisibleRoot);
}
return getChildren(parent);
}
public Object getParent(Object child) {
if (child instanceof TreeObject) {
return ((TreeObject)child).getParent();
}
return null;
}
public Object [] getChildren(Object parent) {
if (parent instanceof TreeParent) {
return ((TreeParent)parent).getChildren();
}
return new Object[0];
}
public boolean hasChildren(Object parent) {
if (parent instanceof TreeParent)
return ((TreeParent)parent).hasChildren();
return false;
}
/*
* We will set up a dummy model to initialize tree heararchy.
* In a real code, you will connect to a real model and
* expose its hierarchy.
*/
private void initialize() {
TreeObject to1 = new TreeObject("Leaf 1");
TreeObject to2 = new TreeObject("Leaf 2");
TreeObject to3 = new TreeObject("Leaf 3");
TreeParent p1 = new TreeParent("Parent 1");
p1.addChild(to1);
p1.addChild(to2);
p1.addChild(to3);
TreeObject to4 = new TreeObject("Leaf 4");
TreeParent p2 = new TreeParent("Parent 2");
p2.addChild(to4);
TreeParent root = new TreeParent("Root");
root.addChild(p1);
root.addChild(p2);
invisibleRoot = new TreeParent("");
invisibleRoot.addChild(root);
}
}
class ViewLabelProvider extends LabelProvider {
public String getText(Object obj) {
return obj.toString();
}
public Image getImage(Object obj) {
String imageKey = ISharedImages.IMG_OBJ_ELEMENT;
if (obj instanceof TreeParent)
imageKey = ISharedImages.IMG_OBJ_FOLDER;
return PlatformUI.getWorkbench().getSharedImages().getImage(imageKey);
}
}
class NameSorter extends ViewerSorter {
}
/**
* The constructor.
*/
public Variables() {
}
/**
* This is a callback that will allow us
* to create the viewer and initialize it.
*/
public void createPartControl(Composite parent) {
viewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
//new
Tree tree = viewer.getTree();
tree.setHeaderVisible(true);
tree.setLinesVisible(true);
TreeColumn column1 = new TreeColumn(tree, SWT.LEFT);
column1.setText("Name");
column1.setWidth(400);
TreeColumn column2 = new TreeColumn(tree, SWT.LEFT);
column2.setText("Value");
column2.setWidth(200);
//end new
drillDownAdapter = new DrillDownAdapter(viewer);
viewer.setContentProvider(new ViewContentProvider());
viewer.setLabelProvider(new ViewLabelProvider());
viewer.setSorter(new NameSorter());
viewer.setInput(getViewSite());
// Create the help context id for the viewer's control
PlatformUI.getWorkbench().getHelpSystem().setHelp(viewer.getControl(), "com.Amazon.FuncE.viewer");
}
现在我有两列，但都显示相同的内容。如何指定将哪种数据放入一列或另一列？
谢谢