Bug 169997 [CellEditors] TableViewer doesn't activate TextCellEditor consistently
A TextCellEditor is not activated consistently in a TableViewer if the cell clicked is not in the currently selected row. Running the sample application in a debugger, the bounds reported for the table item appears to be incorrect for the column when the row is not selected. This behaviour can be observed by setting a breakpoint at TableEditorImpl.java line 135 (the if statement doesn't return true unless the row is selected due to the bounds being incorrect): if (bounds.contains(event.x, event.y)) {
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/ColumnViewer.java
Widget columnOwner = getColumnViewerOwner(columnIndex);
		if (columnOwner == null || columnOwner.isDisposed() ) {
			return null;
		}
		viewer = (ViewerColumn) columnOwner
				.getData(ViewerColumn.COLUMN_VIEWER_KEY);
		if (viewer == null) {
			viewer = createViewerColumn(columnOwner, CellLabelProvider
					.createViewerLabelProvider(this, getLabelProvider()));
			setupEditingSupport(columnIndex, viewer);
		}
		if (viewer.getEditingSupport() == null && getCellModifier() != null) {
			setupEditingSupport(columnIndex, viewer);
		}
		return viewer;
	}
	/**
	 * Sets up editing support for the given column based on the "old" cell
	 * editor API.
	 *
	 * @param columnIndex
	 * @param viewer
	 */
	private void setupEditingSupport(final int columnIndex, ViewerColumn viewer) {
		if (getCellModifier() != null) {
			viewer.setEditingSupport(new EditingSupport(this) {
				/*
				 * (non-Javadoc)
				 *
				 * @see org.eclipse.jface.viewers.EditingSupport#canEdit(java.lang.Object)