我想动态填充 TreeTableView。我用 Scenebuilder 创建了视图。在 MyController 中，我有一个 Draw 按钮，该按钮通过单击调用一个方法，该方法生成一个树表。我有参考设置。当我单击按钮时，仅出现列。应该显示树列的第一列什么也不显示，列下也没有其他值。当我单独使用 TreeTableView 并将其添加到场景时，它可以工作，但现在我想使用这些值来填充由场景生成器制作的 treeTable。还有一些我想不通的东西。treeTable = new TreeTableView<>(root);注释掉treeTable 注释下的列时，列设置正确！否则也不会显示这些列。
这就是我想看到的：
package controller;
import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.ResourceBundle;
import java.util.Set;
import java.util.TreeMap;
import java.util.Map.Entry;
import java.util.stream.Collectors;
import model.DataConstructor;
import javafx.beans.property.ReadOnlyObjectWrapper;
import javafx.beans.property.ReadOnlyStringWrapper;
import javafx.beans.value.ObservableValue;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Label;
import javafx.scene.control.Tooltip;
import javafx.scene.control.TreeItem;
import javafx.scene.control.TreeTableCell;
import javafx.scene.control.TreeTableColumn;
import javafx.scene.control.TreeTableView;
import javafx.scene.control.TreeTableColumn.CellDataFeatures;
import javafx.util.Callback;
public class MainController implements Initializable {
private TreeItem<String> root = new TreeItem<>("Functions");
private DataConstructor dc = new DataConstructor();
@FXML
private TreeTableView<String> treeTable;
@Override
public void initialize(URL location, ResourceBundle resources) {
// TODO Auto-generated method stub
}
public void testDraw(ActionEvent event) {
drawTable();
}
private void drawTable() {
root.setExpanded(true);
Set<String> combinedKeys = new HashSet<>(dc.getCombiFunc().keySet());
Set<String> funcAllKeys = new HashSet<>(dc.getSortedfuncAll().keySet());
funcAllKeys.removeAll(dc.getCombiFunc().keySet());
for (List<String> value : dc.getCombiFunc().values()) {
funcAllKeys.removeAll(value);
}
for (String valueremained : funcAllKeys) {
ArrayList<String> tempNameId = new ArrayList<>();
tempNameId.add(dc.getSortedfuncAll().get(valueremained));
// all elements which are not in combined functions (They are all
// orphan)
root.getChildren().add(new TreeItem<String>(tempNameId.get(0)));
}
Set<String> keyFromcombined = new HashSet<>();
List<String> valueOfCombined = new ArrayList<String>();
for (Entry<String, List<String>> ent : dc.getCombiFunc().entrySet()) {
valueOfCombined.add(ent.getValue().get(0));
}
List<String> rootKeyList = new ArrayList<>();
for (String key : combinedKeys) {
if (!valueOfCombined.contains((key))) {
keyFromcombined.add(dc.getFuncAll().get(key));
rootKeyList.add(key);
}
}
String[] rootKeys = rootKeyList.toArray(new String[rootKeyList.size()]);
// ////////////////treetable////////////////////////////
treeTable = new TreeTableView<>(root);
Arrays.stream(rootKeys).forEach(
rootKey -> root.getChildren().add(
createTreeItem(dc.getCombiFunc(), rootKey)));
// ////////////////First column/////////////////////////
TreeTableColumn<String, String> firstColumn = new TreeTableColumn<>("");
treeTable.getColumns().add(firstColumn);// Tree column
firstColumn
.setCellValueFactory(new Callback<CellDataFeatures<String, String>, ObservableValue<String>>() {
public ObservableValue<String> call(
CellDataFeatures<String, String> p) {
return new ReadOnlyStringWrapper(p.getValue()
.getValue());
}
});
// //////////////////Rest Columns////////////////////////
for (Entry<String, String> ent : dc.getSortedAssignedOrg().entrySet()) {
TreeTableColumn<String, ArrayList<String>> col = new TreeTableColumn<>();
Label label = new Label(ent.getValue());
col.setGraphic(label);
label.setTooltip(new Tooltip(label.getText()));// tooltip for column
// headers
col.setPrefWidth(45);
//cell Value Factory////////////////////////
col.setCellValueFactory(new Callback<TreeTableColumn.CellDataFeatures<String, ArrayList<String>>, ObservableValue<ArrayList<String>>>() {
@Override
public ObservableValue<ArrayList<String>> call(
CellDataFeatures<String, ArrayList<String>> param) {
TreeMap<String, List<String>> temp = (TreeMap<String, List<String>>) dc
.getFuncTypeOrg().clone();
ArrayList<String> result = new ArrayList<>();
for (int i = 0; i < dc.getFuncTypeOrg().size(); i++) {
List<String> list = temp.firstEntry().getValue();
String key = temp.firstEntry().getKey();
// root.getChildren();
if (list.get(1).equals(param.getValue().getValue())
&& list.get(5).equals(label.getText())) {
result.add(0, list.get(2));// weight
// //////////////org combi TODO
for (Entry<String, Set<String>> ent : dc
.getCombiOrg().entrySet()) {
if (ent.getKey().contains(col.getText()))
for (Set<String> value : dc.getCombiOrg()
.values()) {
if (value.contains(col.getText()))
System.out.println(col.getText());
}
}
// ///////////////org combi
if (list.size() > 6) {
result.add(1, list.get(list.size() - 1));// color
result.add(2, list.get(6));// App component
}
else
result.add("white");
result.add("noOrg");
} else {
temp.remove(key);
}
}
return new ReadOnlyObjectWrapper<ArrayList<String>>(result);
}
});
// //////////////cellfactory/////////////////////////
col.setCellFactory(new Callback<TreeTableColumn<String, ArrayList<String>>, TreeTableCell<String, ArrayList<String>>>() {
@Override
public TreeTableCell<String, ArrayList<String>> call(
TreeTableColumn<String, ArrayList<String>> param) {
return new TreeTableCell<String, ArrayList<String>>() {
public void updateItem(ArrayList<String> item,
boolean empty) {
super.updateItem(item, empty);
if (item == null || empty) {
setStyle("");
setText("");
} else if (item.contains("Green")) {
float weightInt = Float.parseFloat(item.get(0));
float res = weightInt * 1;
String resString = Float.toString(res);
this.setStyle("-fx-background-color:green");
setTooltip(new Tooltip(item.get(2)));
setText(resString);
} else if (item.contains("yellow")) {
this.setStyle("-fx-background-color:yellow");
setTooltip(new Tooltip(item.get(2)));
setText("0");
} else if (item.contains("white")) {
setText("DD");
}
}
};
};
});
treeTable.getColumns().add(col);
}
// end for col
treeTable.setPrefWidth(1200);
treeTable.setPrefHeight(500);
treeTable.setShowRoot(false);
treeTable.setTableMenuButtonVisible(true);
}
/**
* Create a TreeItem for a TreeView from a set of data given the data and an
* identified root within the data.
*/
private TreeItem<String> createTreeItem(TreeMap<String, List<String>> data,
String rootKey) {
TreeItem<String> item = new TreeItem<>();
item.setValue(rootKey);
item.setExpanded(true);
List<String> childData = data.get(rootKey);
if (childData != null) {
childData.stream().map(child -> createTreeItem(data, child))
.collect(Collectors.toCollection(item::getChildren));
}
String valueName = item.getValue();
//String sorteV = dc.getSortedfuncAll().get(valueName);
item.setValue((dc.getSortedfuncAll().get(valueName)));
return item;
}
}