--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jface/snippets/Snippet026TreeViewerTabEditing.d	Wed Aug 06 10:03:06 2008 +0800
@@ -0,0 +1,294 @@
+/*******************************************************************************
+ * 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:
+ *     yidabu at gmail dot com  ( D China http://www.d-programming-language-china.org/ ) 
+ *******************************************************************************/
+
+module jface.snippets.Snippet026TreeViewerTabEditing;
+
+
+import dwtx.jface.viewers.CellEditor;
+import dwtx.jface.viewers.ColumnLabelProvider;
+import dwtx.jface.viewers.ColumnViewerEditor;
+import dwtx.jface.viewers.ColumnViewer;
+import dwtx.jface.viewers.ColumnViewerEditorActivationStrategy;
+import dwtx.jface.viewers.EditingSupport;
+import dwtx.jface.viewers.ColumnViewerEditorActivationEvent;
+import dwtx.jface.viewers.FocusCellOwnerDrawHighlighter;
+import dwtx.jface.viewers.ITreeContentProvider;
+import dwtx.jface.viewers.TextCellEditor;
+import dwtx.jface.viewers.TreePath;
+import dwtx.jface.viewers.TreeViewerFocusCellManager;
+import dwtx.jface.viewers.TreeViewerEditor;
+import dwtx.jface.viewers.TreeViewer;
+import dwtx.jface.viewers.TreeViewerColumn;
+import dwtx.jface.viewers.Viewer;
+import dwt.DWT;
+import dwt.events.SelectionEvent;
+import dwt.events.SelectionListener;
+import dwt.layout.FillLayout;
+import dwt.widgets.Button;
+import dwt.widgets.Display;
+import dwt.widgets.Shell;
+
+import dwt.dwthelper.utils;
+
+import tango.util.Convert;
+import tango.util.container.LinkedList;
+
+
+void main(String[] args) {
+    Display display = new Display();
+    Shell shell = new Shell(display);
+    shell.setLayout(new FillLayout());
+    new Snippet026TreeViewerTabEditing(shell);
+    shell.open();
+
+    while (!shell.isDisposed()) {
+        if (!display.readAndDispatch())
+            display.sleep();
+    }
+
+    display.dispose();
+}
+
+/**
+ * A simple TreeViewer to demonstrate usage
+ * 
+ * @author Tom Schindl <tom.schindl@bestsolution.at>
+ * 
+ */
+public class Snippet026TreeViewerTabEditing {
+    alias  LinkedList!(MyModel) ArrayList;    
+	public this(Shell shell) {
+		Button b = new Button(shell,DWT.PUSH);
+		b.setText("Remove column");
+		final TreeViewer v = new TreeViewer(shell, DWT.BORDER
+				| DWT.FULL_SELECTION);
+		v.getTree().setLinesVisible(true);
+		v.getTree().setHeaderVisible(true);
+		b.addSelectionListener(new class(v) SelectionListener {
+            TreeViewer v;
+            this(TreeViewer v_)
+            {
+                this.v = v_;
+            }
+			public void widgetDefaultSelected(SelectionEvent e) {
+				
+			}
+
+			public void widgetSelected(SelectionEvent e) {
+				v.getTree().getColumn(1).dispose();
+			}
+			
+		});
+				 
+		TreeViewerFocusCellManager focusCellManager = new TreeViewerFocusCellManager(v,new FocusCellOwnerDrawHighlighter(v));
+		ColumnViewerEditorActivationStrategy actSupport = new class(v) ColumnViewerEditorActivationStrategy {
+            this(ColumnViewer v_)
+            {
+                super(v_);
+            }
+			protected bool isEditorActivationEvent(
+					ColumnViewerEditorActivationEvent event) {
+				return event.eventType == ColumnViewerEditorActivationEvent.TRAVERSAL
+						|| event.eventType == ColumnViewerEditorActivationEvent.MOUSE_DOUBLE_CLICK_SELECTION
+						|| (event.eventType == ColumnViewerEditorActivationEvent.KEY_PRESSED && event.keyCode == DWT.CR)
+						|| event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC;
+			}
+		};
+		
+		TreeViewerEditor.create(v, focusCellManager, actSupport, ColumnViewerEditor.TABBING_HORIZONTAL
+				| ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR
+				| ColumnViewerEditor.TABBING_VERTICAL | ColumnViewerEditor.KEYBOARD_ACTIVATION);
+		
+		final TextCellEditor textCellEditor = new TextCellEditor(v.getTree());
+
+		TreeViewerColumn column = new TreeViewerColumn(v, DWT.NONE);
+		column.getColumn().setWidth(200);
+		column.getColumn().setMoveable(true);
+		column.getColumn().setText("Column 1");
+		column.setLabelProvider(new class() ColumnLabelProvider {
+
+			public String getText(Object element) {
+				return "Column 1 => " ~ element.toString();
+			}
+
+		});
+		column.setEditingSupport(new class(v) EditingSupport {
+            this(ColumnViewer v_)
+            {
+                super(v_);
+            }
+			protected bool canEdit(Object element) {
+				return false;
+			}
+
+			protected CellEditor getCellEditor(Object element) {
+				return textCellEditor;
+			}
+
+			protected Object getValue(Object element) {
+				return stringcast( (to!(String)((cast(MyModel) element).counter)) );
+			}
+
+			protected void setValue(Object element, Object value) {
+				(cast(MyModel) element).counter = Integer.parseInt(value.toString());
+				v.update(element, null);
+			}
+		});
+
+		column = new TreeViewerColumn(v, DWT.NONE);
+		column.getColumn().setWidth(200);
+		column.getColumn().setMoveable(true);
+		column.getColumn().setText("Column 2");
+		column.setLabelProvider(new class() ColumnLabelProvider {
+
+			public String getText(Object element) {
+				return "Column 2 => " ~ element.toString();
+			}
+
+		});
+		column.setEditingSupport(new class(v) EditingSupport {
+            this(ColumnViewer v_)
+            {
+                super(v_);
+            }
+			protected bool canEdit(Object element) {
+				return true;
+			}
+
+			protected CellEditor getCellEditor(Object element) {
+				return textCellEditor;
+			}
+
+			protected Object getValue(Object element) {
+				return stringcast( to!(String)((cast(MyModel) element).counter) );
+			}
+
+			protected void setValue(Object element, Object value) {
+				(cast(MyModel) element).counter = Integer.parseInt(value.toString());
+				v.update(element, null);
+			}
+		});
+		
+		column = new TreeViewerColumn(v, DWT.NONE);
+		column.getColumn().setWidth(200);
+		column.getColumn().setMoveable(true);
+		column.getColumn().setText("Column 3");
+		column.setLabelProvider(new class() ColumnLabelProvider {
+			public String getText(Object element) {
+				return "Column 3 => " ~ element.toString();
+			}
+
+		});
+		column.setEditingSupport(new class(v) EditingSupport {
+            this(ColumnViewer v_)
+            {
+                super(v_);
+            }
+			protected bool canEdit(Object element) {
+				return true;
+			}
+
+			protected CellEditor getCellEditor(Object element) {
+				return textCellEditor;
+			}
+
+			protected Object getValue(Object element) {
+				return stringcast( to!(String)((cast(MyModel) element).counter) );
+			}
+
+			protected void setValue(Object element, Object value) {
+				(cast(MyModel) element).counter = Integer.parseInt(value.toString());
+				v.update(element, null);
+			}
+		});
+		
+		v.setContentProvider(new MyContentProvider());
+
+		v.setInput(createModel());
+	}
+
+	private MyModel createModel() {
+
+		MyModel root = new MyModel(0, null);
+		root.counter = 0;
+
+		MyModel tmp;
+		MyModel subItem;
+		for (int i = 1; i < 10; i++) {
+			tmp = new MyModel(i, root);
+			root.child.add(tmp);
+			for (int j = 1; j < i; j++) {
+				subItem = new MyModel(j, tmp);
+				subItem.child.add(new MyModel(j * 100, subItem));
+				tmp.child.add(subItem);
+			}
+		}
+
+		return root;
+	}
+
+	private class MyContentProvider : ITreeContentProvider {
+
+		public Object[] getElements(Object inputElement) {
+			return (cast(MyModel) inputElement).child.toArray();
+		}
+
+		public void dispose() {
+		}
+
+		public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
+		}
+
+		public Object[] getChildren(Object parentElement) {
+			return getElements(parentElement);
+		}
+
+		public Object getParent(Object element) {
+			if (element is null) {
+				return null;
+			}
+			return (cast(MyModel) element).parent;
+		}
+
+		public bool hasChildren(Object element) {
+			return (cast(MyModel) element).child.size() > 0;
+		}
+
+	}
+
+	public class MyModel {
+		public MyModel parent;
+
+		public ArrayList child;
+
+		public int counter;
+
+		public this(int counter, MyModel parent) {
+			this.parent = parent;
+			this.counter = counter;
+            child = new ArrayList();            
+		}
+
+		public String toString() {
+			String rv = "Item ";
+			if (parent !is null) {
+				rv = parent.toString() ~ ".";
+			}
+
+			rv ~= to!(String)(counter);
+
+			return rv;
+		}
+	}
+
+}