JavaFX horizontal list of charts - charts

Question

I'm developing a software for the comparison of different amounts of data and I want to use charts to display them in a horizontal way.
Important for me is to display just 3 charts on one side. If there are more than 3 the user shall scroll to the other charts.

Answer 1

It won't look exactly like that pic, I'm too lazy for css. The idea is to put all the charts in a GridPane inside a ScrollPane. Bind the charts so the width is exactly 1/3 of the TabPane width.
I used FXML since it's easier to make a scene.
FXMLDocument.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<TabPane fx:id="tabPane" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" tabClosingPolicy="UNAVAILABLE" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8" fx:controller="horizcharts.FXMLDocumentController">
<tabs>
<Tab text="Main View">
<content>
<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0">
<children>
<Button layoutX="181.0" layoutY="112.0" mnemonicParsing="false" onAction="#addChart" text="Add Chart" />
</children></AnchorPane>
</content>
</Tab>
<Tab text="Compare">
<content>
<ScrollPane maxWidth="1.7976931348623157E308">
<content>
<GridPane fx:id="grid" gridLinesVisible="true">
</GridPane>
</content>
</ScrollPane>
</content>
</Tab>
</tabs>
</TabPane>
FXMLDocumentController.java
package horizcharts;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.chart.BarChart;
import javafx.scene.chart.CategoryAxis;
import javafx.scene.chart.NumberAxis;
import javafx.scene.control.Label;
import javafx.scene.control.TabPane;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.VBox;
public class FXMLDocumentController implements Initializable {
#FXML GridPane grid;
#FXML TabPane tabPane;
private int numCharts = 0;
#FXML private void addChart(ActionEvent event) {
VBox vb = randChart(numCharts);
GridPane.setConstraints(vb, numCharts++,0);
grid.getChildren().add(vb);
}
private VBox randChart(int num){
CategoryAxis xAxis = new CategoryAxis();
NumberAxis yAxis = new NumberAxis();
BarChart<String, Number> bc = new BarChart(xAxis, yAxis);
BarChart.Series<String, Number> series = new BarChart.Series<>();
series.setName("Bar Chart "+num);
bc.getData().add(series);
for (int i = 0; i<5; i++){
series.getData().add(new BarChart.Data("cat "+i, Math.random()*10*i));
}
bc.prefWidthProperty().bind(tabPane.widthProperty().subtract(6).divide(3));
bc.prefHeightProperty().bind(tabPane.heightProperty().subtract(180));//guess heights
VBox vb = new VBox(5,new Label("Version "+num), bc, new Label("precision"), new Label("recall"));
return vb;
}
#Override
public void initialize(URL url, ResourceBundle rb) {
}
}
Regular main class HorizCharts.java.
package horizcharts;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class HorizCharts extends Application {
#Override
public void start(Stage stage) throws Exception {
Parent root = FXMLLoader.load(getClass().getResource("FXMLDocument.fxml"));
Scene scene = new Scene(root);
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) { launch(args); }
}