| /******************************************************************************* |
| * 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 |
| *******************************************************************************/ |
| |
| package org.eclipse.jface.snippets.window; |
| |
| import java.util.ArrayList; |
| |
| import org.eclipse.jface.viewers.CellLabelProvider; |
| 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.Point; |
| import org.eclipse.swt.graphics.Rectangle; |
| import org.eclipse.swt.layout.FillLayout; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Event; |
| import org.eclipse.swt.widgets.Label; |
| import org.eclipse.swt.widgets.Listener; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.swt.widgets.TreeItem; |
| |
| /** |
| * 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/org.eclipse.swt.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 implements ITreeContentProvider { |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object) |
| */ |
| public Object[] getElements(Object inputElement) { |
| return ((MyModel) inputElement).child.toArray(); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.viewers.IContentProvider#dispose() |
| */ |
| public void dispose() { |
| |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, |
| * java.lang.Object, java.lang.Object) |
| */ |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object) |
| */ |
| public Object[] getChildren(Object parentElement) { |
| return getElements(parentElement); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object) |
| */ |
| public Object getParent(Object element) { |
| if (element == null) { |
| return null; |
| } |
| |
| return ((MyModel) element).parent; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object) |
| */ |
| public boolean hasChildren(Object element) { |
| return ((MyModel) element).child.size() > 0; |
| } |
| |
| } |
| |
| public class MyModel { |
| public MyModel parent; |
| |
| public ArrayList child = new ArrayList(); |
| |
| public int counter; |
| |
| public MyModel(int counter, MyModel parent) { |
| this.parent = parent; |
| this.counter = counter; |
| } |
| |
| public String toString() { |
| String rv = "Item "; |
| if (parent != null) { |
| rv = parent.toString() + "."; |
| } |
| |
| rv += counter; |
| |
| return rv; |
| } |
| } |
| |
| public Snippet023TreeViewerCustomTooltips(Shell shell) { |
| final TreeViewer v = new TreeViewer(shell); |
| v.setLabelProvider(new LabelProvider()); |
| v.setContentProvider(new MyContentProvider()); |
| v.setInput(createModel()); |
| v.getTree().setToolTipText(""); |
| |
| final Listener labelListener = new Listener () { |
| public void handleEvent (Event event) { |
| Label label = (Label)event.widget; |
| Shell shell = label.getShell (); |
| switch (event.type) { |
| case SWT.MouseDown: |
| Event e = new Event (); |
| e.item = (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 (new TreeItem [] {(TreeItem) e.item}); |
| v.getTree().notifyListeners (SWT.Selection, e); |
| shell.dispose (); |
| v.getTree().setFocus(); |
| break; |
| case SWT.MouseExit: |
| shell.dispose (); |
| break; |
| } |
| } |
| }; |
| |
| Listener treeListener = new Listener () { |
| Shell tip = null; |
| Label label = null; |
| public void handleEvent (Event event) { |
| switch (event.type) { |
| case SWT.Dispose: |
| case SWT.KeyDown: |
| case SWT.MouseMove: { |
| if (tip == null) break; |
| tip.dispose (); |
| tip = null; |
| label = null; |
| break; |
| } |
| case SWT.MouseHover: { |
| Point coords = new Point(event.x, event.y); |
| TreeItem item = v.getTree().getItem(coords); |
| if (item != null) { |
| int columns = v.getTree().getColumnCount(); |
| |
| for (int i = 0; i < columns || i == 0; i++) { |
| if (item.getBounds(i).contains(coords)) { |
| if (tip != null && !tip.isDisposed ()) tip.dispose (); |
| tip = new Shell (v.getTree().getShell(), SWT.ON_TOP | SWT.NO_FOCUS | SWT.TOOL); |
| tip.setBackground (v.getTree().getDisplay().getSystemColor (SWT.COLOR_INFO_BACKGROUND)); |
| FillLayout layout = new FillLayout (); |
| layout.marginWidth = 2; |
| tip.setLayout (layout); |
| label = new Label (tip, SWT.NONE); |
| label.setForeground (v.getTree().getDisplay().getSystemColor (SWT.COLOR_INFO_FOREGROUND)); |
| label.setBackground (v.getTree().getDisplay().getSystemColor (SWT.COLOR_INFO_BACKGROUND)); |
| label.setData ("_TABLEITEM", item); |
| label.setText ("Tooltip: " + item.getData()+ " => Column: " + i); |
| label.addListener (SWT.MouseExit, labelListener); |
| label.addListener (SWT.MouseDown, labelListener); |
| Point size = tip.computeSize (SWT.DEFAULT, SWT.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; |
| } |
| } |
| } |
| } |
| } |
| } |
| }; |
| v.getTree().addListener (SWT.Dispose, treeListener); |
| v.getTree().addListener (SWT.KeyDown, treeListener); |
| v.getTree().addListener (SWT.MouseMove, treeListener); |
| v.getTree().addListener (SWT.MouseHover, treeListener); |
| } |
| |
| 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(); |
| } |
| } |