+package eu.etaxonomy.taxeditor;
+
+import java.util.ArrayList;
+
+import org.eclipse.jface.viewers.IStructuredContentProvider;
+import org.eclipse.jface.viewers.ITreeContentProvider;
+import org.eclipse.jface.viewers.LabelProvider;
+import org.eclipse.jface.viewers.TreeViewer;
+import org.eclipse.jface.viewers.Viewer;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.ui.ISharedImages;
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.part.ViewPart;
+
+public class NavigationView extends ViewPart {
+ public static final String ID = "eu.etaxonomy.taxeditor.navigationView";
+ private TreeViewer viewer;
+
+ class TreeObject {
+ 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();
+ }
+ }
+
+ 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 {
+
+ public void inputChanged(Viewer v, Object oldInput, Object newInput) {
+ }
+
+ public void dispose() {
+ }
+
+ public Object[] getElements(Object parent) {
+ 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;
+ }
+ }
+
+ 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);
+ }
+ }
+
+ /**
+ * We will set up a dummy model to initialize tree heararchy. In real
+ * code, you will connect to a real model and expose its hierarchy.
+ */
+ private TreeObject createDummyModel() {
+ TreeObject to1 = new TreeObject("Inbox");
+ TreeObject to2 = new TreeObject("Drafts");
+ TreeObject to3 = new TreeObject("Sent");
+ TreeParent p1 = new TreeParent("me@this.com");
+ p1.addChild(to1);
+ p1.addChild(to2);
+ p1.addChild(to3);
+
+ TreeObject to4 = new TreeObject("Inbox");
+ TreeParent p2 = new TreeParent("other@aol.com");
+ p2.addChild(to4);
+
+ TreeParent root = new TreeParent("");
+ root.addChild(p1);
+ root.addChild(p2);
+ return root;
+ }
+
+ /**
+ * 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 | SWT.BORDER);
+ viewer.setContentProvider(new ViewContentProvider());
+ viewer.setLabelProvider(new ViewLabelProvider());
+ viewer.setInput(createDummyModel());
+ }
+
+ /**
+ * Passing the focus request to the viewer's control.
+ */
+ public void setFocus() {
+ viewer.getControl().setFocus();
+ }
+}
\ No newline at end of file
BGBM BDI Projects / taxeditor.git / commitdiff
