Examples of org.eclipse.jface.viewers.StructuredViewer.update() | massapi.com

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Package org.eclipse.jface.viewers

Class org.eclipse.jface.viewers.StructuredViewer

Examples of org.eclipse.jface.viewers.StructuredViewer.update()

org.eclipse.jface.viewers.StructuredViewer.update()
Updates the given elements' presentation when one or more of their properties change. Only the given elements are updated.
This does not handle structural changes (e.g. addition or removal of elements), and does not update any other related elements (e.g. child elements). To handle structural changes, use the refresh methods instead.

This should be called when an element has changed in the model, in order to have the viewer accurately reflect the model. This method only affects the viewer, not the model.

Specifying which properties are affected may allow the viewer to optimize the update. For example, if the label provider is not affected by changes to any of these properties, an update may not actually be required. Specifying properties as null forces a full update of the given elements.

If the viewer has a sorter which is affected by a change to one of the properties, the elements' positions are updated to maintain the sort order. Note that resorting may not happen if properties is null.

If the viewer has a filter which is affected by a change to one of the properties, elements may appear or disappear if the change affects whether or not they are filtered out. Note that resorting may not happen if properties is null.
@param elements the elements @param properties the properties that have changed, or null to indicate unknown

                if (viewer == null || viewer.getControl().isDisposed())
                    return;


                if (viewer instanceof StructuredViewer) {
                    StructuredViewer structuredViewer = (StructuredViewer) viewer;
                    structuredViewer.update(element, properties);
                } else {
                    viewer.refresh();
                }
            }
        });

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                if (viewer == null || viewer.getControl().isDisposed())
                    return;


                if (viewer instanceof StructuredViewer) {
                    StructuredViewer structuredViewer = (StructuredViewer) viewer;
                    structuredViewer.update(elements, properties);
                } else {
                    viewer.refresh();
                }
            }
        });

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