filling TreeTableView in fxml dynamicly from JavaFX - javafx

Question

I want to fill a TreeTableView dynamically. I have created the view with Scenebuilder. In MyController I have a Draw button which by cliking calls a method, which makes a treetable. I have references set. when i click the button only columns are appear. The first column which is ought to show the treecolumn shows nothing and there is also no other value under columns. The TreeTableView works when I just use it alone and add it to scene, but now i want to use the values to fill the treeTable which is made by scene Builder. There is something else that i can not figure out. The columns are set correctly when comment out treeTable = new TreeTableView<>(root); which is under treeTable comment! otherwise the columns are not shown either.
That is what i want to see:
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;
}
}

Answer 1

Your drawTable() method creates a new TreeTableView but I don't see any code where you add that TreeTableView to the UI, or remove the existing TreeTableView.
You probably want to replace
treeTable = new TreeTableView<>(root);
with
treeTable.setRoot(root);