@Override
public Object doGetValue() {
if (attribute.equals(Constants.ATTR_TEXT)) return item.getText();
if (attribute.equals(Constants.ATTR_IMAGE)) return item.getImage();
if (attribute.equals(Constants.ATTR_TOOLTIP)) {
if (item instanceof TableColumn) return ((TableColumn) item).getToolTipText();
if (item instanceof TreeColumn) return ((TreeColumn) item).getToolTipText();
if (item instanceof ToolItem) return ((ToolItem) item).getToolTipText();
if (item instanceof TabItem) return ((TabItem) item).getToolTipText();
}
if (attribute.equals(Constants.ATTR_ALIGNMENT)) {
if (item instanceof TableColumn) return ((TableColumn) item).getAlignment();
if (item instanceof TreeColumn) return ((TreeColumn) item).getAlignment();
}
if (attribute.equals(Constants.ATTR_WIDTH)) {
if (item instanceof TableColumn) return ((TableColumn) item).getWidth();
if (item instanceof TreeColumn) return ((TreeColumn) item).getWidth();
if (item instanceof ToolItem) return ((ToolItem) item).getWidth();
}
if (attribute.equals(Constants.ATTR_ENABLED)) {
if (item instanceof ToolItem) return ((ToolItem) item).getEnabled();
}
return null;
}
private void updateItem(Item item) {
if (!item.isDisposed()) { // defensive code
ILabelProvider lprovider = (ILabelProvider) fContentViewer.getLabelProvider();
Object data = item.getData();
String oldText = item.getText();
String text = lprovider.getText(data);
if (text != null && !text.equals(oldText)) {
item.setText(text);
}
Image oldImage = item.getImage();
Image image = lprovider.getImage(data);
if (image != null && !image.equals(oldImage)) {
item.setImage(image);
}
}
}