Examples with CellVisualUpdateEvent org.eclipse.nebula.widgets.nattable.layer.event.CellVisualUpdateEvent used on opensource projects

Example 1 with CellVisualUpdateEvent

use of org.eclipse.nebula.widgets.nattable.layer.event.CellVisualUpdateEvent in project nebula.widgets.nattable by eclipse.

the class NatTable method handleLayerEvent.

// Events /////////////////////////////////////////////////////////////////
@Override
public void handleLayerEvent(ILayerEvent event) {
    List<ILayerListener> currentListeners;
    this.eventListenerLock.readLock().lock();
    try {
        currentListeners = this.listeners;
    } finally {
        this.eventListenerLock.readLock().unlock();
    }
    for (ILayerListener layerListener : currentListeners) {
        layerListener.handleLayerEvent(event);
    }
    if (event instanceof CellVisualUpdateEvent) {
        CellVisualUpdateEvent update = (CellVisualUpdateEvent) event;
        repaintCell(update.getColumnPosition(), update.getRowPosition());
        return;
    }
    if (event instanceof ColumnVisualUpdateEvent) {
        ColumnVisualUpdateEvent update = (ColumnVisualUpdateEvent) event;
        // if more than one column has changed repaint the whole table
        Collection<Range> ranges = update.getColumnPositionRanges();
        if (ranges.size() == 1) {
            Range range = ranges.iterator().next();
            if (range.end - range.start == 1) {
                repaintColumn(range.start);
                return;
            }
        }
    }
    if (event instanceof RowVisualUpdateEvent) {
        RowVisualUpdateEvent update = (RowVisualUpdateEvent) event;
        // if more than one row has changed repaint the whole table
        Collection<Range> ranges = update.getRowPositionRanges();
        if (ranges.size() == 1) {
            Range range = ranges.iterator().next();
            if (range.end - range.start == 1) {
                repaintRow(range.start);
                return;
            }
        }
    }
    if (event instanceof ISelectionEvent) {
        if (event instanceof CellSelectionEvent || event instanceof RowSelectionEvent) {
            Event e = new Event();
            e.widget = this;
            try {
                notifyListeners(SWT.Selection, e);
            } catch (RuntimeException re) {
                // $NON-NLS-1$
                log.error("Error on SWT selection processing", re);
            }
        }
        // in case of selections we redraw immediately
        // this is because with Bug 440037 it was reported that
        // NatTable is too lazy in handling selections which
        // was caused by the EventConflaterChain that only performs
        // updates every 100ms to avoid flickering when handling too
        // many refresh operations in a short period
        redraw();
    } else if (event instanceof IVisualChangeEvent) {
        this.conflaterChain.addEvent(event);
    }
    if (event instanceof CellEditorCreatedEvent) {
        CellEditorCreatedEvent editorEvent = (CellEditorCreatedEvent) event;
        this.activeCellEditor = editorEvent.getEditor();
        Control editorControl = this.activeCellEditor.getEditorControl();
        if (editorControl != null && !editorControl.isDisposed()) {
            editorControl.addDisposeListener(new DisposeListener() {

                @Override
                public void widgetDisposed(DisposeEvent e) {
                    NatTable.this.activeCellEditor = null;
                    ActiveCellEditorRegistry.unregisterActiveCellEditor();
                }
            });
        } else {
            this.activeCellEditor = null;
            ActiveCellEditorRegistry.unregisterActiveCellEditor();
        }
        ActiveCellEditorRegistry.registerActiveCellEditor(this.activeCellEditor);
    }
}

Example 2 with CellVisualUpdateEvent

use of org.eclipse.nebula.widgets.nattable.layer.event.CellVisualUpdateEvent in project nebula.widgets.nattable by eclipse.

the class HoverLayer method setCurrentHoveredCellPosition.

/**
 * Set the information about the cell position that is currently hovered and
 * fire an event to update a possible previous hovered cell to remove the
 * hover styling and an event to update the newly hovered cell to apply the
 * hover styling.
 *
 * @param cellPosition
 *            The position of the cell that is currently hovered.
 */
public void setCurrentHoveredCellPosition(Point cellPosition) {
    if (!isCellPositionHovered(cellPosition)) {
        Point oldHover = this.currentHoveredCellPosition;
        this.currentHoveredCellPosition = cellPosition;
        if (oldHover != null) {
            fireLayerEvent(new CellVisualUpdateEvent(this, oldHover.x, oldHover.y));
        }
        fireLayerEvent(new CellVisualUpdateEvent(this, this.currentHoveredCellPosition.x, this.currentHoveredCellPosition.y));
    }
}

Example 3 with CellVisualUpdateEvent

use of org.eclipse.nebula.widgets.nattable.layer.event.CellVisualUpdateEvent in project nebula.widgets.nattable by eclipse.

the class HoverLayer method clearCurrentHoveredCellPosition.

/**
 * Removes the local stored information about the cell position that is
 * currently hovered and fires an event to update the cell so the hover
 * styling is removed.
 */
public void clearCurrentHoveredCellPosition() {
    if (this.currentHoveredCellPosition != null) {
        Point oldHover = this.currentHoveredCellPosition;
        this.currentHoveredCellPosition = null;
        fireLayerEvent(new CellVisualUpdateEvent(this, oldHover.x, oldHover.y));
    }
}