How to write a text on a chart?

By left click of the mouse on a chart, I would write a text by creating a rectangle of text box so that you can resize and move.

Any help really with really enjoyed code example.

Hello. Try the following text:

import javafx.application.Application;
import javafx.beans.property.SimpleBooleanProperty;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.chart.CategoryAxis;
import javafx.scene.chart.LineChart;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart;
import javafx.scene.control.Label;
import javafx.scene.control.TextArea;
import javafx.scene.control.TextField;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyEvent;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.Pane;
import javafx.scene.layout.StackPane;
import javafx.scene.paint.Color;
import javafx.scene.shape.LineTo;
import javafx.scene.shape.MoveTo;
import javafx.scene.shape.Path;
import javafx.scene.shape.Polygon;
import javafx.scene.text.Text;
import javafx.stage.Stage;

public class XyChart extends Application {

    SimpleIntegerProperty clickIn = new SimpleIntegerProperty(0);

    Pane pane = new Pane();
    StringBuffer sb = new StringBuffer();

    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage stage) {

        final CategoryAxis xAxis = new CategoryAxis();
        final NumberAxis yAxis = new NumberAxis(1, 21, 0.1);
        yAxis.setTickUnit(1);
        yAxis.setPrefWidth(35);
        yAxis.setMinorTickCount(10);
        yAxis.setTickLabelFormatter(new NumberAxis.DefaultFormatter(yAxis) {
            @Override
            public String toString(Number object) {
                String label;
                label = String.format("%7.2f", object.floatValue());
                return label;
            }
        });
        final LineChart lineChart = new LineChart(xAxis, yAxis);

        lineChart.setCreateSymbols(false);
        lineChart.setAlternativeRowFillVisible(false);
        lineChart.setLegendVisible(false);

        XYChart.Series series1 = new XYChart.Series();

        series1.getData().add(new XYChart.Data("Jan", 1));
        series1.getData().add(new XYChart.Data("Feb", 4));
        series1.getData().add(new XYChart.Data("Mar", 2.5));
        series1.getData().add(new XYChart.Data("Apr", 5));
        series1.getData().add(new XYChart.Data("May", 6));
        series1.getData().add(new XYChart.Data("Jun", 8));
        series1.getData().add(new XYChart.Data("Jul", 12));
        series1.getData().add(new XYChart.Data("Aug", 8));
        series1.getData().add(new XYChart.Data("Sep", 11));
        series1.getData().add(new XYChart.Data("Oct", 13));
        series1.getData().add(new XYChart.Data("Nov", 10));
        series1.getData().add(new XYChart.Data("Dec", 20));

        pane.getChildren().add(lineChart);
        final Scene scene = new Scene(pane, 800, 600);
        lineChart.setAnimated(false);
        lineChart.getData().addAll(series1);

        lineChart.addEventFilter(MouseEvent.MOUSE_PRESSED, new EventHandler() {
            public void handle(MouseEvent event) {

                if (clickIn.get() == 0) {
                    Text ta = new Text("shakir");
                  final  StringProperty sp = new SimpleStringProperty("sh");
                   ta.textProperty().bind(sp);
                    clickIn.set(1);
                    System.out.println("Clicked");
                    pane.getChildren().add(ta);
                    sp.set("");
                    ta.relocate(event.getX(), event.getY());
                    ta.requestFocus();
                    ta.setOnKeyPressed(new EventHandler() {
                        public void handle(KeyEvent e) {
                            if (e.getCode() == KeyCode.ENTER) { clickIn.set(0); }
                            else {
                            String t = sp.get();
                           sp.setValue(t + e.getText());
                            }
                        }
                    }); 

                } else {
                    clickIn.set(0);
                   // pane.getChildren().remove(ta);
                    event.consume();

                }

            }
        });

        stage.setScene(scene);
        stage.show();

    }
}

Tags: Java

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How to write a text on a chart?

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