我有一个名为ErrorHighlighter的类,只要更改了名为errorString的属性,就会收到通知。基于此propertychangeevent,我更新HighLighterPredicate以突出显示具有红色背景的特定行。
ErrorHighlighter收到propertychangeevent,它也会更改HighlighterPredicate,但表行不会更新为红色背景。
我还更新了行的工具提示。这也没有反映出来。
请参阅下面的代码。有人可以帮忙吗?
public class ErrorRowHighlighter extends ColorHighlighter implements PropertyChangeListener {
private Map<Integer, String> rowsInError;
private SwingObjTreeTable<ShareholderHistoryTable> treeTable;
public ErrorRowHighlighter(SwingObjTreeTable<ShareholderHistoryTable> treeTable) {
super(CommonConstants.errorColor, null);
this.treeTable = treeTable;
rowsInError=new HashMap<Integer, String>();
setHighlightPredicate(new HighlightPredicate() {
@Override
public boolean isHighlighted(Component renderer, ComponentAdapter adapter) {
if(rowsInError.containsKey(adapter.row)){
return true;
}
return false;
}
});
this.treeTable.addMouseMotionListener(new MouseMotionAdapter() {
@Override
public void mouseMoved(MouseEvent e) {
int row=ErrorRowHighlighter.this.treeTable.rowAtPoint(e.getPoint());
if(rowsInError.containsKey(row)){
ErrorRowHighlighter.this.treeTable.setToolTipText(rowsInError.get(row));
}else{
ErrorRowHighlighter.this.treeTable.setToolTipText(null);
}
}
});
}
public void highlightRowWithModelDataAsError(ShareholderHistoryTable modelData){
int indexForNodeData = treeTable.getIndexForNodeData(modelData);
if(indexForNodeData>-1){
rowsInError.put(indexForNodeData, modelData.getErrorString());
updateHighlighter();
}
}
public void unhighlightRowWithModelDataAsError(ShareholderHistoryTable modelData){
int indexForNodeData = treeTable.getIndexForNodeData(modelData);
if(indexForNodeData>-1){
rowsInError.remove(indexForNodeData);
updateHighlighter();
}
}
public void updateHighlighter(){
treeTable.removeHighlighter(this);
treeTable.addHighlighter(this);
}
@Override
public void propertyChange(PropertyChangeEvent evt) {
ShareholderHistoryTable sourceObject= (ShareholderHistoryTable) evt.getSource();
if(StringUtils.isNotEmpty(sourceObject.getErrorString())){
highlightRowWithModelDataAsError(sourceObject);
}else{
unhighlightRowWithModelDataAsError(sourceObject);
}
}
}
答案 0 :(得分:1)
这看起来像是我的错误。方法treeTable.getIndexForNodeData()实际上通过对底层树数据结构进行预顺序遍历来返回行的索引。这包括未在jxtreetable上显示的根节点。因此我需要从索引
减去1int indexForNodeData = treeTable.getIndexForNodeData(modelData)-1;
这解决了我的问题。如果有人想查看ColorHighlighter和属性更改侦听器的示例,我将离开帖子而不是删除它。