--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jface/snippets/viewers/Snippet026TreeViewerTabEditing.d	Fri Aug 08 14:40:21 2008 +0200
@@ -0,0 +1,295 @@
+/*******************************************************************************
+ * 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 snippets.viewers.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 dwtx.dwtxhelper.Collection;
+
+import tango.util.Convert;
+
+version(JIVE) import jive.stacktrace;
+
+
+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 {
+    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;
+        }
+    }
+
+}