Description Miroslav Halas 2004-01-07 05:11:21 EST

BUG in Fedora Core 1 Linux with SWT 3.0M6 and below. If the background color 
is set then the row will not appear as selected if it is edited (different 
behaviour from other rows) The problem is that I need to set the background 
color because for example before I set the background color to Green and now
I want to restore it. It should appear as selected when edited (that is the 
behaviour on windows) but it is not.

Here is the snippet adapted from the standard code.

package com.abmira.swt.snippets.control.table;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.TableEditor;
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.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.swt.widgets.Text;

public class TableEditor2
{
   public static void main(String[] args)
   {
      Display display = new Display();
      Shell shell = new Shell(display);
      shell.setLayout(new FillLayout());
      final Table table = new Table(shell, SWT.BORDER | SWT.MULTI);
      table.setLinesVisible(true);
      for (int i = 0; i < 3; i++)
      {
         TableColumn column = new TableColumn(table, SWT.NONE);
         column.setWidth(100);
      }
      for (int i = 0; i < 3; i++)
      {
         TableItem item = new TableItem(table, SWT.NONE);
         item.setText(new String[] { "" + i, "" + i, "" + i });
         if (i == 1)
         {
            // BUG in Fedora Core 1 Linux with SWT 3.0M6 and below
            // If the background color is set then the row will not appear as
            // selected if it is edited (different behaviour from other rows)
            // The problem is that I need to set the background color because
            // for example before I set the background color to Green and now
            // I want to restore it. It should be selected when edited (that 
is 
            // the behaviour on windows) but it is not
            item.setBackground(item.getDisplay().getSystemColor(
                  SWT.COLOR_LIST_BACKGROUND));                           
         }
      }
      final TableEditor editor = new TableEditor(table);
      editor.horizontalAlignment = SWT.LEFT;
      editor.grabHorizontal = true;
      table.addListener(SWT.MouseDown, new Listener()
      {
         public void handleEvent(Event event)
         {
            Rectangle clientArea = table.getClientArea();
            Point pt = new Point(event.x, event.y);
            int index = table.getTopIndex();
            while (index < table.getItemCount())
            {
               boolean visible = false;
               final TableItem item = table.getItem(index);
               for (int i = 0; i < table.getColumnCount(); i++)
               {
                  Rectangle rect = item.getBounds(i);
                  if (rect.contains(pt))
                  {
                     final int column = i;
                     final Text text = new Text(table, SWT.NONE);
                     Listener textListener = new Listener()
                     {
                        public void handleEvent(final Event e)
                        {
                           switch (e.type)
                           {
                              case SWT.FocusOut :
                                 item.setText(column, text.getText());
                                 text.dispose();
                                 break;
                              case SWT.Traverse :
                                 switch (e.detail)
                                 {
                                    case SWT.TRAVERSE_RETURN :
                                       item.setText(column, text.getText());
                                       //FALL THROUGH
                                    case SWT.TRAVERSE_ESCAPE :
                                       text.dispose();
                                       e.doit = false;
                                 }
                                 break;
                           }
                        }
                     };
                     text.addListener(SWT.FocusOut, textListener);
                     text.addListener(SWT.Traverse, textListener);
                     editor.setEditor(text, item, i);
                     text.setText(item.getText(i));
                     text.selectAll();
                     text.setFocus();
                     return;
                  }
                  if (!visible && rect.intersects(clientArea))
                  {
                     visible = true;
                  }
               }
               if (!visible)
                  return;
               index++;
            }
         }
      });
      shell.pack();
      shell.open();
      while (!shell.isDisposed())
      {
         if (!display.readAndDispatch())
            display.sleep();
      }
      display.dispose();
   }
}