MReport.java 文件源码

/**
 * Handle the change of the position of a band
 * 
 * @param evt the event that changed the band position
 */
private void handleChangeOrder(PropertyChangeEvent evt) {
    if (evt instanceof IndexedPropertyChangeEvent && evt.getNewValue() instanceof Integer) {
        JRDesignSection source = (JRDesignSection) evt.getSource();
        int newInd = ((IndexedPropertyChangeEvent) evt).getIndex();
        JRBand b = source.getBandsList().get(newInd);
        MBand mb = null;
        for (INode n : getChildren()) {
            if (n.getValue() == b) {
                mb = (MBand) n;
                break;
            }
        }
        if (mb != null) {
            newInd = getChildren().indexOf(mb) + (newInd - (Integer) evt.getOldValue());
            getChildren().remove(mb);
            getChildren().add(newInd, mb);
        }
    }
}