Java/SWT JFace Eclipse/Tooltips

Create fake tooltips for items in a SWT table

   <source lang="java">

/*

* Tool Tips example snippet: 
*
* For a list of all SWT example snippets see
* http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
*/

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.Table; import org.eclipse.swt.widgets.TableItem; public class Snippet125 {

 public static void main(String[] args) {
   final Display display = new Display();
   final Shell shell = new Shell(display);
   shell.setLayout(new FillLayout());
   final Table table = new Table(shell, SWT.BORDER);
   for (int i = 0; i < 20; i++) {
     TableItem item = new TableItem(table, SWT.NONE);
     item.setText("item " + i);
   }
   // Disable native tooltip
   table.setToolTipText("");
   // Implement a "fake" tooltip
   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 = (TableItem) label.getData("_TABLEITEM");
         // Assuming table is single select, set the selection as if
         // the mouse down event went through to the table
         table.setSelection(new TableItem[] { (TableItem) e.item });
         table.notifyListeners(SWT.Selection, e);
       // fall through
       case SWT.MouseExit:
         shell.dispose();
         break;
       }
     }
   };
   Listener tableListener = 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: {
         TableItem item = table.getItem(new Point(event.x, event.y));
         if (item != null) {
           if (tip != null && !tip.isDisposed())
             tip.dispose();
           tip = new Shell(shell, SWT.ON_TOP | SWT.TOOL);
           tip.setLayout(new FillLayout());
           label = new Label(tip, SWT.NONE);
           label.setForeground(display
               .getSystemColor(SWT.COLOR_INFO_FOREGROUND));
           label.setBackground(display
               .getSystemColor(SWT.COLOR_INFO_BACKGROUND));
           label.setData("_TABLEITEM", item);
           label.setText("tooltip " + item.getText());
           label.addListener(SWT.MouseExit, labelListener);
           label.addListener(SWT.MouseDown, labelListener);
           Point size = tip.ruputeSize(SWT.DEFAULT, SWT.DEFAULT);
           Rectangle rect = item.getBounds(0);
           Point pt = table.toDisplay(rect.x, rect.y);
           tip.setBounds(pt.x, pt.y, size.x, size.y);
           tip.setVisible(true);
         }
       }
       }
     }
   };
   table.addListener(SWT.Dispose, tableListener);
   table.addListener(SWT.KeyDown, tableListener);
   table.addListener(SWT.MouseMove, tableListener);
   table.addListener(SWT.MouseHover, tableListener);
   shell.open();
   while (!shell.isDisposed()) {
     if (!display.readAndDispatch())
       display.sleep();
   }
   display.dispose();
 }

}

      </source>
   
  
 
  

Create tool tips for a tab folder, tool bar and control

   <source lang="java">

/*

* Tool Tips example snippet: create tool tips for a tab folder, tool bar and control
*
* For a list of all SWT example snippets see
* http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
*/

import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.TabFolder; import org.eclipse.swt.widgets.TabItem; import org.eclipse.swt.widgets.ToolBar; import org.eclipse.swt.widgets.ToolItem; public class Snippet41 { public static void main (String [] args) {

 String string = "This is a string\nwith a new line.";
 Display display = new Display ();
 Shell shell = new Shell (display);
 shell.open ();
 TabFolder folder = new TabFolder (shell, SWT.BORDER);
 folder.setSize (200, 200);
 TabItem item0 = new TabItem (folder, 0);
 item0.setToolTipText (string);
 ToolBar bar = new ToolBar (shell, SWT.BORDER);
 bar.setBounds (0, 200, 200, 64);
 ToolItem item1 = new ToolItem (bar, 0);
 item1.setToolTipText (string);
 shell.setToolTipText (string);
 while (!shell.isDisposed ()) {
   if (!display.readAndDispatch ()) display.sleep ();
 }
 display.dispose ();

} }

      </source>