--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jface/snippets/window/Snippet023TreeViewerCustomTooltips.d	Mon Aug 11 11:17:37 2008 +0200
@@ -0,0 +1,253 @@
+/*******************************************************************************
+ * 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
+ *******************************************************************************/
+
+module dwtx.jface.snippets.window.Snippet023TreeViewerCustomTooltips;
+
+import dwtx.jface.viewers.CellLabelProvider;
+import dwtx.jface.viewers.ITreeContentProvider;
+import dwtx.jface.viewers.LabelProvider;
+import dwtx.jface.viewers.TreeViewer;
+import dwtx.jface.viewers.Viewer;
+import dwt.DWT;
+import dwt.graphics.Point;
+import dwt.graphics.Rectangle;
+import dwt.layout.FillLayout;
+import dwt.widgets.Display;
+import dwt.widgets.Event;
+import dwt.widgets.Label;
+import dwt.widgets.Listener;
+import dwt.widgets.Shell;
+import dwt.widgets.TreeItem;
+
+import dwtx.dwtxhelper.Collection;
+import dwt.dwthelper.utils;
+import tango.text.convert.Format;
+import tango.util.log.Trace;
+
+/**
+ * A simple TreeViewer to demonstrate how custom tooltips could be created
+ * easily. This is an extended version from
+ * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/dwt.snippets/src/org/eclipse/swt/snippets/Snippet125.java
+ *
+ * This code is for users pre 3.3 others could use newly added tooltip support in
+ * {@link CellLabelProvider}
+ *
+ * @author Tom Schindl <tom.schindl@bestsolution.at>
+ *
+ */
+public class Snippet023TreeViewerCustomTooltips {
+    private class MyContentProvider : ITreeContentProvider {
+
+        /*
+         * (non-Javadoc)
+         *
+         * @see dwtx.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
+         */
+        public Object[] getElements(Object inputElement) {
+            return (cast(MyModel) inputElement).child.toArray();
+        }
+
+        /*
+         * (non-Javadoc)
+         *
+         * @see dwtx.jface.viewers.IContentProvider#dispose()
+         */
+        public void dispose() {
+
+        }
+
+        /*
+         * (non-Javadoc)
+         *
+         * @see dwtx.jface.viewers.IContentProvider#inputChanged(dwtx.jface.viewers.Viewer,
+         *      java.lang.Object, java.lang.Object)
+         */
+        public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
+
+        }
+
+        /*
+         * (non-Javadoc)
+         *
+         * @see dwtx.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object)
+         */
+        public Object[] getChildren(Object parentElement) {
+            return getElements(parentElement);
+        }
+
+        /*
+         * (non-Javadoc)
+         *
+         * @see dwtx.jface.viewers.ITreeContentProvider#getParent(java.lang.Object)
+         */
+        public Object getParent(Object element) {
+            if (element is null) {
+                return null;
+            }
+
+            return (cast(MyModel) element).parent;
+        }
+
+        /*
+         * (non-Javadoc)
+         *
+         * @see dwtx.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object)
+         */
+        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() {
+            return Format( "Item {}{}", (parent !is null) ? "." : "", counter );
+        }
+    }
+
+    TreeViewer v;
+    Listener labelListener;
+
+    public this(Shell shell) {
+        v = new TreeViewer(shell);
+        v.setLabelProvider(new LabelProvider());
+        v.setContentProvider(new MyContentProvider());
+        v.setInput(createModel());
+        v.getTree().setToolTipText("");
+
+        labelListener = dgListener ( (Event event){
+            Label label = cast(Label)event.widget;
+            Shell shell_ = label.getShell ();
+            switch (event.type) {
+                case DWT.MouseDown:
+                    Event e = new Event ();
+                    e.item = cast(TreeItem) label.getData ("_TABLEITEM");
+                    // Assuming table is single select, set the selection as if
+                    // the mouse down event went through to the table
+                    v.getTree().setSelection ([cast(TreeItem) e.item]);
+                    v.getTree().notifyListeners (DWT.Selection, e);
+                    shell_.dispose ();
+                    v.getTree().setFocus();
+                    break;
+                case DWT.MouseExit:
+                    shell_.dispose ();
+                    break;
+                default:
+            }
+        });
+
+        Listener treeListener = new MyTreeListener();
+        v.getTree().addListener (DWT.Dispose, treeListener);
+        v.getTree().addListener (DWT.KeyDown, treeListener);
+        v.getTree().addListener (DWT.MouseMove, treeListener);
+        v.getTree().addListener (DWT.MouseHover, treeListener);
+    }
+
+    class MyTreeListener : Listener {
+        Shell tip = null;
+        Label label = null;
+        public void handleEvent (Event event) {
+            switch (event.type) {
+                case DWT.Dispose:
+                case DWT.KeyDown:
+                case DWT.MouseMove: {
+                    if (tip is null) break;
+                    tip.dispose ();
+                    tip = null;
+                    label = null;
+                    break;
+                }
+                case DWT.MouseHover: {
+                    Point coords = new Point(event.x, event.y);
+                    TreeItem item = v.getTree().getItem(coords);
+                    if (item !is null) {
+                        int columns = v.getTree().getColumnCount();
+
+                        for (int i = 0; i < columns || i is 0; i++) {
+                            if (item.getBounds(i).contains(coords)) {
+                                if (tip !is null  && !tip.isDisposed ()) tip.dispose ();
+                                tip = new Shell (v.getTree().getShell(), DWT.ON_TOP | DWT.NO_FOCUS | DWT.TOOL);
+                                tip.setBackground (v.getTree().getDisplay().getSystemColor (DWT.COLOR_INFO_BACKGROUND));
+                                FillLayout layout = new FillLayout ();
+                                layout.marginWidth = 2;
+                                tip.setLayout (layout);
+                                label = new Label (tip, DWT.NONE);
+                                label.setForeground (v.getTree().getDisplay().getSystemColor (DWT.COLOR_INFO_FOREGROUND));
+                                label.setBackground (v.getTree().getDisplay().getSystemColor (DWT.COLOR_INFO_BACKGROUND));
+                                label.setData ("_TABLEITEM", item);
+                                label.setText (Format("Tooltip: {} => {}", item.getData(), i));
+                                label.addListener (DWT.MouseExit, labelListener);
+                                label.addListener (DWT.MouseDown, labelListener);
+                                Point size = tip.computeSize (DWT.DEFAULT, DWT.DEFAULT);
+                                Rectangle rect = item.getBounds (i);
+                                Point pt = v.getTree().toDisplay (rect.x, rect.y);
+                                tip.setBounds (pt.x, pt.y, size.x, size.y);
+                                tip.setVisible (true);
+                                break;
+                            }
+                        }
+                    }
+                }
+                default:
+            }
+        }
+    };
+
+    private MyModel createModel() {
+
+        MyModel root = new MyModel(0, null);
+        root.counter = 0;
+
+        MyModel tmp;
+        for (int i = 1; i < 10; i++) {
+            tmp = new MyModel(i, root);
+            root.child.add(tmp);
+            for (int j = 1; j < i; j++) {
+                tmp.child.add(new MyModel(j, tmp));
+            }
+        }
+
+        return root;
+    }
+
+    public static void main(String[] args) {
+        Display display = new Display();
+        Shell shell = new Shell(display);
+        shell.setLayout(new FillLayout());
+        new Snippet023TreeViewerCustomTooltips(shell);
+        shell.open();
+
+        while (!shell.isDisposed()) {
+            if (!display.readAndDispatch())
+                display.sleep();
+        }
+
+        display.dispose();
+    }
+}
+
+void main(){
+    Snippet023TreeViewerCustomTooltips.main(null);
+}
+
+