我瘋了,因爲我不明白我做錯了什麼。我需要我的樹的每個節點具有不同的圖標,就好像它是正確的,不正確的或需要更新。我看到了Oracle文檔和許多網頁(包括Stackoverflow),但是我的代碼只顯示了所有具有相同圖標的節點。對不起,如果我做錯了,這是我的第一次POST:>DefaultTreeCellRenderer不按預期方式工作
顯示: 我不能顯示,因爲我沒有聲望>。 <
想象一棵樹,想象它總是顯示葉圖標gif新圖標圖標。似乎只有狀態纔會聽最後一個節點。
下面的代碼(所有的瓦爾正確創建,像gifNew圖標太):
圖標:
static Icon closedIcon = new ImageIcon("folder.png");
static Icon openIcon = new ImageIcon("folder.png");
static Icon leafIcon = new ImageIcon("file.png");
static Icon gifWarn = new ImageIcon("warn.gif");
static Icon gifOk = new ImageIcon("ok.gif");
static Icon gifNew = new ImageIcon("plus.gif");
static Icon gifError = new ImageIcon("error.gif");
電話:
tree.setCellRenderer(new TreeRenderer());
渲染:
private static class TreeRenderer extends DefaultTreeCellRenderer {
public Component getTreeCellRendererComponent(JTree tree, Object value,
boolean sel, boolean exp, boolean leaf, int row, boolean hasFocus) {
super.getTreeCellRendererComponent(tree, value, sel, exp, leaf, row, hasFocus);
DefaultMutableTreeNode node = (DefaultMutableTreeNode) value;
String s = node.getUserObject().toString();
String error;
if (actualTree.equals("DOORS")){
error = checkTypeError(s, valuesClass.listOfValuesDOORS);
//System.out.println("DOORS - S: "+s);
}else{
error = checkTypeError(s, valuesClass.listOfValuesTC);
//System.out.println("TC - S: "+s);
}
switch (error) {
case "CORRECT":
setOpenIcon(openIcon);
setClosedIcon(closedIcon);
setLeafIcon(leafIcon);
break;
case "CREATE":
setOpenIcon(gifNew);
setClosedIcon(gifNew);
setLeafIcon(gifNew);
break;
case "DELETE":
setOpenIcon(gifError);
setClosedIcon(gifError);
setLeafIcon(gifError);
break;
case "UPDATE":
setOpenIcon(gifWarn);
setClosedIcon(gifWarn);
setLeafIcon(gifWarn);
break;
default:
setOpenIcon(openIcon);
setClosedIcon(closedIcon);
setLeafIcon(leafIcon);
//System.err.println("ERROR IN RENDERER. VALUE: "+error);
break;
}
return this;
}
/*****************************************
* Function that return which error have the actual node to push the icon when the tree is created.
*****************************************/
protected static String checkTypeError(String txt, List<valuesClass> list){
for (int i = 0; i < list.size(); i++) {
if (list.get(i).text.equals(txt))
if (list.get(i).create == true){
return "CREATE";
}else if (list.get(i).delete == true){
return "DELETE";
}else if (list.get(i).update == true){
return "UPDATE";
}else{
return "CORRECT";
}
}
return "DEFAULT";
}
}
O.O!真棒!有用!現在我的樹有每個案件的不同圖標!現在我可以繼續這個項目了! :>我不能給你低聲譽水平的聲望,但你是一個主人:P – chiri4
也許你可以接受答案,那麼因爲它已經爲你工作:) –
噢是的,現在被接受。謝謝! – chiri4