Examples with PVItem org.csstudio.trends.databrowser3.model.PVItem used on opensource projects

Example 6 with PVItem

use of org.csstudio.trends.databrowser3.model.PVItem in project org.csstudio.display.builder by kasemir.

the class AddModelItemCommand method forPV.

/**
 * Create PV via undo-able AddModelItemCommand,
 *  displaying errors in dialog
 *  @param shell Shell used for error dialogs
 *  @param operations_manager OperationsManager where command will be reg'ed
 *  @param model Model were PV is to be added
 *  @param pv_name Name of new PV
 *  @param period scan period
 *  @param axis Axis
 *  @param archive Archive data source
 *  @return AddModelItemCommand or <code>null</code> on error
 */
public static Optional<AddModelItemCommand> forPV(final Shell shell, final UndoableActionManager operations_manager, final Model model, final String pv_name, final double period, final AxisConfig axis, final ArchiveDataSource archive) {
    // Create item
    final PVItem item;
    try {
        item = new PVItem(pv_name, period);
        if (archive != null)
            item.addArchiveDataSource(archive);
        else
            item.useDefaultArchiveDataSources();
        axis.setVisible(true);
        item.setAxis(axis);
    } catch (Exception ex) {
        MessageDialog.openError(shell, Messages.Error, NLS.bind(Messages.AddItemErrorFmt, pv_name, ex.getMessage()));
        return Optional.empty();
    }
    // Add to model via undo-able command
    return Optional.of(new AddModelItemCommand(shell, operations_manager, model, item));
}

Example 7 with PVItem

use of org.csstudio.trends.databrowser3.model.PVItem in project org.csstudio.display.builder by kasemir.

the class DataBrowserPropertySheetPage method getSelectedPVs.

/**
 * @return Currently selected PVs in the table of traces (items). Never <code>null</code>
 */
protected PVItem[] getSelectedPVs() {
    final IStructuredSelection selection = (IStructuredSelection) trace_table.getSelection();
    if (selection.isEmpty())
        return new PVItem[0];
    final Object[] obj = selection.toArray();
    final ArrayList<PVItem> pvs = new ArrayList<PVItem>();
    for (int i = 0; i < obj.length; ++i) if (obj[i] instanceof PVItem)
        pvs.add((PVItem) obj[i]);
    return pvs.toArray(new PVItem[pvs.size()]);
}

Example 8 with PVItem

use of org.csstudio.trends.databrowser3.model.PVItem in project org.csstudio.display.builder by kasemir.

the class DataBrowserPropertySheetPage method createTracesMenuAndToolbarActions.

/**
 * Create context menu and toolbar actions for the traces table
 */
private void createTracesMenuAndToolbarActions() {
    final MenuManager menu = new MenuManager();
    menu.setRemoveAllWhenShown(true);
    final Shell shell = trace_table.getControl().getShell();
    final AddPVAction add_pv = new AddPVAction(operations_manager, shell, model, false);
    final AddPVAction add_formula = new AddPVAction(operations_manager, shell, model, true);
    final EditItemsAction edit_pv = new EditItemsAction(operations_manager, shell, trace_table, model);
    final DeleteItemsAction delete_pv = new DeleteItemsAction(operations_manager, trace_table, model);
    menu.addMenuListener(new IMenuListener() {

        @Override
        public void menuAboutToShow(IMenuManager manager) {
            final PVItem[] pvs = getSelectedPVs();
            menu.add(add_pv);
            menu.add(add_formula);
            menu.add(edit_pv);
            if (pvs.length == 1)
                menu.add(new MoveItemAction(operations_manager, model, pvs[0], true));
            menu.add(delete_pv);
            if (pvs.length == 1)
                menu.add(new MoveItemAction(operations_manager, model, pvs[0], false));
            menu.add(new RemoveUnusedAxesAction(operations_manager, model));
            if (pvs.length > 0) {
                menu.add(new AddArchiveAction(operations_manager, shell, pvs));
                menu.add(new UseDefaultArchivesAction(operations_manager, pvs));
            }
            menu.add(new Separator());
            menu.add(new GroupMarker(IWorkbenchActionConstants.MB_ADDITIONS));
        }
    });
    final Table table = trace_table.getTable();
    table.setMenu(menu.createContextMenu(table));
    // Allow object contributions based on selected items
    getSite().registerContextMenu(menu.getId(), menu, trace_table);
    // Add to tool bar
    final IToolBarManager toolbar = getSite().getActionBars().getToolBarManager();
    toolbar.add(add_pv);
    toolbar.add(add_formula);
}

Example 9 with PVItem

use of org.csstudio.trends.databrowser3.model.PVItem in project org.csstudio.display.builder by kasemir.

the class EditItemsCommand method undo.

@Override
public void undo() {
    for (int i = 0; i < items.size(); ++i) {
        final ModelItem item = items.get(i);
        try {
            item.setVisible(wasVisible.get(i));
            item.setName(oldName.get(i));
            item.setDisplayName(oldDisplayName.get(i));
            item.setColor(oldColor.get(i));
            item.setLineWidth(oldLineWidth.get(i));
            item.setAxis(oldAxis.get(i));
            item.setTraceType(oldTraceType.get(i));
            item.setWaveformIndex(oldWaveformIndex.get(i));
            if (item instanceof PVItem) {
                ((PVItem) item).setScanPeriod(oldScanPeriod.get(i));
                ((PVItem) item).setLiveCapacity(oldBufferSizes.get(i));
                ((PVItem) item).setRequestType(oldRequestType.get(i));
            }
        } catch (Exception ex) {
            ExceptionDetailsErrorDialog.openError(null, Messages.Error, ex);
        }
    }
}

Example 10 with PVItem

use of org.csstudio.trends.databrowser3.model.PVItem in project org.csstudio.display.builder by kasemir.

the class TraceTableHandler method createColumns.

/**
 * Create table columns: Auto-sizable, with label provider and editor
 *  @param table_layout
 *  @param operations_manager
 *  @param table_viewer
 */
public void createColumns(final TableColumnLayout table_layout, final UndoableActionManager operations_manager, final TableViewer table_viewer) {
    color_registry = new LocalResourceManager(JFaceResources.getResources(), table_viewer.getTable());
    final Shell shell = table_viewer.getTable().getShell();
    // Visible Column ----------
    TableViewerColumn view_col = TableHelper.createColumn(table_layout, table_viewer, Messages.TraceVisibility, 45, 1);
    view_col.setLabelProvider(new CellLabelProvider() {

        @Override
        public void update(final ViewerCell cell) {
            final ModelItem item = (ModelItem) cell.getElement();
            cell.setImage(item.isVisible() ? Activator.getDefault().getImage(Activator.ICON_CHECKED) : Activator.getDefault().getImage(Activator.ICON_UNCHECKED));
        }

        @Override
        public String getToolTipText(Object element) {
            return Messages.TraceVisibilityTT;
        }
    });
    new TableColumnSortHelper<ModelItem>(table_viewer, view_col) {

        @Override
        public int compare(final ModelItem item1, final ModelItem item2) {
            final int v1 = item1.isVisible() ? 1 : 0;
            final int v2 = item2.isVisible() ? 1 : 0;
            final int cmp = v1 - v2;
            if (cmp != 0)
                return cmp;
            return item1.getName().compareTo(item2.getName());
        }
    };
    view_col.setEditingSupport(new EditSupportBase(table_viewer) {

        @Override
        protected CellEditor getCellEditor(final Object element) {
            editing = true;
            return new CheckboxCellEditor(((TableViewer) getViewer()).getTable());
        }

        @Override
        protected Object getValue(final Object element) {
            return ((ModelItem) element).isVisible();
        }

        @Override
        protected void setValue(final Object element, final Object value) {
            final ModelItem item = (ModelItem) element;
            final boolean visible = ((Boolean) value).booleanValue();
            if (!visible && prompt_for_not_visible) {
                if (!MessageDialog.openQuestion(shell, Messages.HideTraceWarning, Messages.HideTraceWarningDetail))
                    return;
                prompt_for_not_visible = false;
            }
            new ChangeVisibilityCommand(operations_manager, item, visible);
            editing = false;
        }
    });
    // Trace PV/Formula Column ----------
    view_col = TableHelper.createColumn(table_layout, table_viewer, Messages.ItemName, 70, 70);
    view_col.setLabelProvider(new CellLabelProvider() {

        @Override
        public void update(final ViewerCell cell) {
            final ModelItem item = (ModelItem) cell.getElement();
            cell.setText(item.getName());
        }

        @Override
        public String getToolTipText(Object element) {
            return Messages.ItemNameTT;
        }
    });
    new TableColumnSortHelper<ModelItem>(table_viewer, view_col) {

        @Override
        public int compare(final ModelItem item1, final ModelItem item2) {
            return item1.getName().compareTo(item2.getName());
        }
    };
    view_col.setEditingSupport(new EditSupportBase(table_viewer) {

        @Override
        protected Object getValue(final Object element) {
            return ((ModelItem) element).getName();
        }

        @Override
        protected CellEditor getCellEditor(Object element) {
            editing = true;
            return super.getCellEditor(element);
        }

        @Override
        protected void setValue(final Object element, final Object value) {
            final String new_name = value.toString().trim();
            final ModelItem item = (ModelItem) element;
            if (new_name.equals(item.getName()))
                return;
            new ChangeNameCommand(shell, operations_manager, item, new_name);
            editing = false;
        }
    });
    // Display Name Column ----------
    view_col = TableHelper.createColumn(table_layout, table_viewer, Messages.TraceDisplayName, 70, 70);
    view_col.setLabelProvider(new CellLabelProvider() {

        @Override
        public void update(final ViewerCell cell) {
            final ModelItem item = (ModelItem) cell.getElement();
            cell.setText(item.getDisplayName());
        }

        @Override
        public String getToolTipText(Object element) {
            return Messages.TraceDisplayNameTT;
        }
    });
    new TableColumnSortHelper<ModelItem>(table_viewer, view_col) {

        @Override
        public int compare(final ModelItem item1, final ModelItem item2) {
            return item1.getDisplayName().compareTo(item2.getDisplayName());
        }
    };
    view_col.setEditingSupport(new EditSupportBase(table_viewer) {

        @Override
        protected Object getValue(final Object element) {
            return ((ModelItem) element).getDisplayName();
        }

        @Override
        protected CellEditor getCellEditor(Object element) {
            editing = true;
            return super.getCellEditor(element);
        }

        @Override
        protected void setValue(final Object element, final Object value) {
            final String new_name = value.toString().trim();
            final ModelItem item = (ModelItem) element;
            if (new_name.equals(item.getDisplayName()))
                return;
            new ChangeDisplayNameCommand(operations_manager, item, new_name);
            editing = false;
        }
    });
    // Color Column ----------
    view_col = TableHelper.createColumn(table_layout, table_viewer, Messages.Color, 40, 10);
    view_col.setLabelProvider(new ColorCellLabelProvider<ModelItem>() {

        @Override
        protected Color getColor(ModelItem item) {
            return color_registry.createColor(SWTMediaPool.getRGB(item.getPaintColor()));
        }
    });
    view_col.setEditingSupport(new EditSupportBase(table_viewer) {

        @Override
        protected CellEditor getCellEditor(final Object element) {
            editing = true;
            return new RGBCellEditor(table_viewer.getTable());
        }

        @Override
        protected Object getValue(final Object element) {
            return ((ModelItem) element).getRGBColor();
        }

        @Override
        protected void setValue(final Object element, final Object value) {
            new ChangeColorCommand(operations_manager, (ModelItem) element, SWTMediaPool.getJFX((RGB) value));
            editing = false;
        }
    });
    // Selected sample time stamp and value
    view_col = TableHelper.createColumn(table_layout, table_viewer, Messages.CursorTimestamp, 150, 30);
    view_col.setLabelProvider(new CellLabelProvider() {

        @Override
        public void update(final ViewerCell cell) {
            final ModelItem item = (ModelItem) cell.getElement();
            final Optional<PlotDataItem<Instant>> sample = item.getSelectedSample();
            if (sample.isPresent())
                cell.setText(TimeHelper.format(sample.get().getPosition()));
            else
                cell.setText(Messages.NotApplicable);
        }

        @Override
        public String getToolTipText(Object element) {
            return Messages.CursorTimestampTT;
        }
    });
    view_col = TableHelper.createColumn(table_layout, table_viewer, Messages.CursorValue, 40, 30);
    view_col.setLabelProvider(new CellLabelProvider() {

        @Override
        public void update(final ViewerCell cell) {
            final ModelItem item = (ModelItem) cell.getElement();
            final Optional<PlotDataItem<Instant>> sample = item.getSelectedSample();
            if (sample.isPresent()) {
                final PlotSample plot_sample = (PlotSample) sample.get();
                String text = DefaultVTypeFormat.get().format(plot_sample.getVType());
                final String units = item.getUnits();
                if (units != null)
                    // $NON-NLS-1$
                    text += " " + units;
                cell.setText(text);
            } else
                cell.setText(Messages.NotApplicable);
        }

        @Override
        public String getToolTipText(Object element) {
            return Messages.CursorValueTT;
        }
    });
    // Scan Period Column (only applies to PVItems) ----------
    view_col = TableHelper.createColumn(table_layout, table_viewer, Messages.ScanPeriod, 70, 10);
    view_col.setLabelProvider(new CellLabelProvider() {

        @Override
        public void update(final ViewerCell cell) {
            final ModelItem item = (ModelItem) cell.getElement();
            if (item instanceof PVItem)
                cell.setText(Double.toString(((PVItem) item).getScanPeriod()));
            else
                cell.setText(Messages.NotApplicable);
        }

        @Override
        public String getToolTipText(final Object element) {
            if (!(element instanceof PVItem))
                return null;
            return Messages.ScanPeriodTT;
        }
    });
    view_col.setEditingSupport(new EditSupportBase(table_viewer) {

        @Override
        protected boolean canEdit(Object element) {
            return element instanceof PVItem;
        }

        @Override
        protected CellEditor getCellEditor(Object element) {
            editing = true;
            return super.getCellEditor(element);
        }

        @Override
        protected Object getValue(final Object element) {
            if (element instanceof PVItem)
                return Double.toString(((PVItem) element).getScanPeriod());
            else
                return Messages.NotApplicable;
        }

        @Override
        protected void setValue(final Object element, final Object value) {
            if (!(element instanceof PVItem))
                return;
            final PVItem pv = (PVItem) element;
            try {
                final double period = Double.parseDouble(value.toString().trim());
                if (period != pv.getScanPeriod())
                    new ChangeSamplePeriodCommand(shell, operations_manager, pv, period);
                editing = false;
            } catch (NumberFormatException ex) {
                // Display will revert to original value
                return;
            }
        }
    });
    // Buffer size Column (only applies to PVItems) ----------
    view_col = TableHelper.createColumn(table_layout, table_viewer, Messages.LiveSampleBufferSize, 70, 10);
    view_col.setLabelProvider(new CellLabelProvider() {

        @Override
        public void update(final ViewerCell cell) {
            final ModelItem item = (ModelItem) cell.getElement();
            if (item instanceof PVItem)
                cell.setText(Integer.toString(((PVItem) item).getLiveCapacity()));
            else
                cell.setText(Messages.NotApplicable);
        }

        @Override
        public String getToolTipText(final Object element) {
            if (!(element instanceof PVItem))
                return null;
            final PVItem pv = (PVItem) element;
            return NLS.bind(Messages.LiveBufferSizeInfoFmt, pv.getLiveCapacity(), new RelativeTime(pv.getLiveCapacity()).toString());
        }
    });
    view_col.setEditingSupport(new EditSupportBase(table_viewer) {

        @Override
        protected boolean canEdit(Object element) {
            return element instanceof PVItem;
        }

        @Override
        protected Object getValue(final Object element) {
            if (element instanceof PVItem)
                return Integer.toString(((PVItem) element).getLiveCapacity());
            else
                return Messages.NotApplicable;
        }

        @Override
        protected CellEditor getCellEditor(Object element) {
            editing = true;
            return super.getCellEditor(element);
        }

        @Override
        protected void setValue(final Object element, final Object value) {
            if (!(element instanceof PVItem))
                return;
            final PVItem pv = (PVItem) element;
            try {
                final int size = Integer.parseInt(value.toString().trim());
                if (size != pv.getLiveCapacity())
                    new ChangeLiveCapacityCommand(shell, operations_manager, pv, size);
                editing = false;
            } catch (NumberFormatException ex) {
                // Display will revert to original value
                return;
            }
        }
    });
    // Axis Column ----------
    view_col = TableHelper.createColumn(table_layout, table_viewer, Messages.Axis, 60, 30);
    view_col.setLabelProvider(new CellLabelProvider() {

        @Override
        public void update(final ViewerCell cell) {
            final ModelItem item = (ModelItem) cell.getElement();
            cell.setText(item.getAxis().getName());
        }

        @Override
        public String getToolTipText(Object element) {
            return Messages.AxisTT;
        }
    });
    new TableColumnSortHelper<ModelItem>(table_viewer, view_col) {

        @Override
        public int compare(final ModelItem item1, final ModelItem item2) {
            final int cmp = item1.getAxis().getName().compareTo(item2.getAxis().getName());
            if (cmp != 0)
                return cmp;
            return item1.getDisplayName().compareTo(item2.getDisplayName());
        }
    };
    view_col.setEditingSupport(new EditSupportBase(table_viewer) {

        // Thread-safe copy of model axes as this editor is invoked
        final List<AxisConfig> axes = new ArrayList<>();

        @Override
        protected CellEditor getCellEditor(final Object element) {
            editing = true;
            final List<String> axis_names = new ArrayList<>();
            axes.clear();
            for (AxisConfig axis : model.getAxes()) {
                axes.add(axis);
                axis_names.add(axis.getName());
            }
            final ComboBoxCellEditor combo = new ComboBoxCellEditor(table_viewer.getTable(), axis_names.toArray(new String[axis_names.size()]), SWT.READ_ONLY);
            combo.setValue(getValue(element));
            return combo;
        }

        @Override
        protected Object getValue(final Object element) {
            return model.getAxisIndex(((ModelItem) element).getAxis());
        }

        @Override
        protected void setValue(final Object element, final Object value) {
            final int axis_index = ((Integer) value).intValue();
            final AxisConfig axis = axes.get(axis_index);
            final ModelItem item = (ModelItem) element;
            if (axis != item.getAxis())
                new ChangeAxisCommand(operations_manager, item, axis);
            editing = false;
        }
    });
    // Trace Type Column ----------
    view_col = TableHelper.createColumn(table_layout, table_viewer, Messages.TraceType, 75, 10);
    view_col.setLabelProvider(new CellLabelProvider() {

        @Override
        public void update(final ViewerCell cell) {
            final ModelItem item = (ModelItem) cell.getElement();
            cell.setText(item.getTraceType().toString());
        }

        @Override
        public String getToolTipText(Object element) {
            return Messages.TraceTypeTT;
        }
    });
    view_col.setEditingSupport(new EditSupportBase(table_viewer) {

        @Override
        protected CellEditor getCellEditor(final Object element) {
            editing = true;
            final ComboBoxCellEditor combo = new ComboBoxCellEditor(table_viewer.getTable(), TraceType.getDisplayNames(), SWT.READ_ONLY);
            combo.setValue(getValue(element));
            return combo;
        }

        @Override
        protected Object getValue(final Object element) {
            return ((ModelItem) element).getTraceType().ordinal();
        }

        @Override
        protected void setValue(final Object element, final Object value) {
            final TraceType trace_type = TraceType.values()[(((Integer) value).intValue())];
            final ModelItem item = (ModelItem) element;
            if (trace_type != item.getTraceType())
                new ChangeTraceTypeCommand(operations_manager, item, trace_type);
            editing = false;
        }
    });
    // Line Width Column ----------
    view_col = TableHelper.createColumn(table_layout, table_viewer, Messages.TraceLineWidth, 40, 10);
    view_col.setLabelProvider(new CellLabelProvider() {

        @Override
        public void update(final ViewerCell cell) {
            final ModelItem item = (ModelItem) cell.getElement();
            cell.setText(Integer.toString(item.getLineWidth()));
        }

        @Override
        public String getToolTipText(Object element) {
            return Messages.TraceLineWidthTT;
        }
    });
    view_col.setEditingSupport(new EditSupportBase(table_viewer) {

        @Override
        protected Object getValue(final Object element) {
            return Integer.toString(((ModelItem) element).getLineWidth());
        }

        @Override
        protected CellEditor getCellEditor(Object element) {
            editing = true;
            return super.getCellEditor(element);
        }

        @Override
        protected void setValue(final Object element, final Object value) {
            int width;
            try {
                width = Integer.parseInt(value.toString().trim());
            } catch (NumberFormatException ex) {
                width = 0;
            }
            final ModelItem item = (ModelItem) element;
            if (width != item.getLineWidth())
                new ChangeLineWidthCommand(operations_manager, item, width);
            editing = false;
        }
    });
    // Point Type Column ----------
    view_col = TableHelper.createColumn(table_layout, table_viewer, Messages.PointType, 75, 10);
    view_col.setLabelProvider(new CellLabelProvider() {

        @Override
        public void update(final ViewerCell cell) {
            final ModelItem item = (ModelItem) cell.getElement();
            cell.setText(item.getPointType().toString());
        }

        @Override
        public String getToolTipText(Object element) {
            return Messages.PointTypeTT;
        }
    });
    view_col.setEditingSupport(new EditSupportBase(table_viewer) {

        @Override
        protected CellEditor getCellEditor(final Object element) {
            editing = true;
            final ComboBoxCellEditor combo = new ComboBoxCellEditor(table_viewer.getTable(), PointType.getDisplayNames(), SWT.READ_ONLY);
            combo.setValue(getValue(element));
            return combo;
        }

        @Override
        protected Object getValue(final Object element) {
            return ((ModelItem) element).getPointType().ordinal();
        }

        @Override
        protected void setValue(final Object element, final Object value) {
            final PointType point_type = PointType.values()[((Integer) value).intValue()];
            final ModelItem item = (ModelItem) element;
            if (point_type != item.getPointType())
                new ChangePointTypeCommand(operations_manager, item, point_type);
            editing = false;
        }
    });
    // Point Size Column ----------
    view_col = TableHelper.createColumn(table_layout, table_viewer, Messages.PointSize, 40, 10);
    view_col.setLabelProvider(new CellLabelProvider() {

        @Override
        public void update(final ViewerCell cell) {
            final ModelItem item = (ModelItem) cell.getElement();
            cell.setText(Integer.toString(item.getPointSize()));
        }

        @Override
        public String getToolTipText(Object element) {
            return Messages.PointSizeTT;
        }
    });
    view_col.setEditingSupport(new EditSupportBase(table_viewer) {

        @Override
        protected Object getValue(final Object element) {
            return Integer.toString(((ModelItem) element).getPointSize());
        }

        @Override
        protected CellEditor getCellEditor(Object element) {
            editing = true;
            return super.getCellEditor(element);
        }

        @Override
        protected void setValue(final Object element, final Object value) {
            int size;
            try {
                size = Integer.parseInt(value.toString().trim());
            } catch (NumberFormatException ex) {
                size = 0;
            }
            final ModelItem item = (ModelItem) element;
            if (size != item.getPointSize())
                new ChangePointSizeCommand(operations_manager, item, size);
            editing = false;
        }
    });
    // Request Type Column ----------
    view_col = TableHelper.createColumn(table_layout, table_viewer, Messages.RequestType, 75, 10);
    view_col.setLabelProvider(new CellLabelProvider() {

        @Override
        public void update(final ViewerCell cell) {
            final ModelItem item = (ModelItem) cell.getElement();
            if (item instanceof PVItem)
                cell.setText(((PVItem) item).getRequestType().toString());
            else
                cell.setText(Messages.NotApplicable);
        }

        @Override
        public String getToolTipText(Object element) {
            return Messages.RequestTypeTT;
        }
    });
    // Edit as boolean: Raw == false,  Optimized == true
    view_col.setEditingSupport(new EditSupportBase(table_viewer) {

        @Override
        protected boolean canEdit(final Object element) {
            return element instanceof PVItem;
        }

        @Override
        protected CellEditor getCellEditor(final Object element) {
            editing = true;
            return new CheckboxCellEditor(((TableViewer) getViewer()).getTable());
        }

        @Override
        protected Object getValue(final Object element) {
            return ((PVItem) element).getRequestType() == RequestType.OPTIMIZED;
        }

        @Override
        protected void setValue(final Object element, final Object value) {
            final PVItem item = (PVItem) element;
            final RequestType request_type = ((Boolean) value).booleanValue() ? RequestType.OPTIMIZED : RequestType.RAW;
            if (request_type == RequestType.RAW && prompt_for_raw_data_request) {
                if (!MessageDialog.openQuestion(shell, Messages.RequestTypeWarning, Messages.RequestTypeWarningDetail))
                    return;
                prompt_for_raw_data_request = false;
            }
            new ChangeRequestTypeCommand(operations_manager, item, request_type);
            editing = false;
        }
    });
    // Waveform Index Column ----------
    view_col = TableHelper.createColumn(table_layout, table_viewer, Messages.WaveformIndexCol, 40, 10);
    view_col.setLabelProvider(new CellLabelProvider() {

        @Override
        public void update(final ViewerCell cell) {
            final ModelItem item = (ModelItem) cell.getElement();
            cell.setText(Integer.toString(item.getWaveformIndex()));
        }

        @Override
        public String getToolTipText(Object element) {
            return Messages.WaveformIndexColTT;
        }
    });
    view_col.setEditingSupport(new EditSupportBase(table_viewer) {

        @Override
        protected Object getValue(final Object element) {
            return Integer.toString(((ModelItem) element).getWaveformIndex());
        }

        @Override
        protected CellEditor getCellEditor(Object element) {
            editing = true;
            return super.getCellEditor(element);
        }

        @Override
        protected void setValue(final Object element, final Object value) {
            int index;
            try {
                index = Integer.parseInt(value.toString().trim());
                if (index < 0)
                    return;
                final ModelItem item = (ModelItem) element;
                if (index != item.getWaveformIndex())
                    new ChangeWaveformIndexCommand(operations_manager, item, index);
            } catch (NumberFormatException ex) {
                return;
            } finally {
                editing = false;
            }
        }
    });
    ColumnViewerToolTipSupport.enableFor(table_viewer);
}