Java 类net.sf.jasperreports.engine.design.events.JRPropertyChangeSupport 实例源码

@Override
public void setPropertyValue(Object value) {
    if (value != null && value instanceof JRLineBox)
    {
        ModelUtils.applyBoxProperties(container.getLineBox(), (JRLineBox)value);
        // Check if we are able to fire an event....

        try {
            Method m = container.getClass().getMethod("getEventSupport", new Class[]{});
            if (m != null)
            {
                JRPropertyChangeSupport support = (JRPropertyChangeSupport) m.invoke(container, new Object[]{});
                support.firePropertyChange("linebox", null, value);
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        }

    }
}

@Override
public void propertyChange(final PropertyChangeEvent evt) {
    final AMCollection section = getSection();
    if (section != null) {
        if (evt.getPropertyName().equals(section.getCellEvent())) {
            if (evt.getSource() == this.getValue()) {

                final StandardBaseColumn bc = (StandardBaseColumn) evt
                        .getSource();

                final ANode parent = (ANode) getParent();
                final MColumn child = this;
                final int newIndex = parent.getChildren().indexOf(this);

                parent.removeChild(child);

                section.createColumn(parent, bc, 122, newIndex);

                MTable mtable = (MTable) section.getParent();
                if (mtable == null){
                    ((JRPropertyChangeSupport)evt.getSource()).removePropertyChangeListener(child);
                } else {
                    mtable.getTableManager().refresh();
                    TableColumnNumerator.renumerateColumnNames(mtable);
                    parent.propertyChange(evt);
                }
            }
        }
    }
    super.propertyChange(evt);
}

private JRPropertyChangeSupport getEventSupport(JRElementGroup container)
{
    if (container instanceof JRDesignElementGroup)
    {
        return ((JRDesignElementGroup)container).getEventSupport();
    }
    else if (container instanceof JRDesignFrame)
    {
        return ((JRDesignFrame)container).getEventSupport();
    }

    return null;
}