JavaFX | TextFlow Class

TextFlow class is a part of JavaFX. TextFlow class is designed to lay out rich text. It can be used to layout several Text nodes in a single text flow. TextFlow class extends Pane class.

Constructors of the class:

1. TextFlow(): Create a new textflow object.
2. TextFlow(Node… c): Create a new textflow object with specified nodes.

Commonly Used Methods:

Method	Explanation
getLineSpacing()	Returns the line spacing of the text flow
getTextAlignment()	Returns the text alignment of the text flow
setLineSpacing(double s)	Set line spacing of the text flow .
setTextAlignment(TextAlignment v)	Sets the text alignment of the text flow.

Below programs illustrate the use of TextFlow class:

1. Java program to create a TextFlow and add text object to it: In this program we will create a TextFlow named text_flow and two Text named text_1 and text_2. Set the fill and font using setFill() and setFont(). We will add the text to the text_flow using the getChildren().add() function. Add the text_flow to the scene and scene to the stage. Call the show() function to display the final results.

   // Java program to create a TextFlow and
   // add text object to it .
   import javafx.application.Application;
   import javafx.scene.Scene;
   import javafx.scene.control.*;
   import javafx.scene.layout.*;
   import javafx.stage.Stage;
   import javafx.event.ActionEvent;
   import javafx.scene.paint.*;
   import javafx.scene.text.*;
   import javafx.scene.web.*;
   import javafx.scene.layout.*;
   import javafx.scene.shape.*;
   
   public class TextFlow_0 extends Application {
   
       // launch the application
       public void start(Stage stage)
       {
   
           try {
   
               // set title for the stage
               stage.setTitle("TextFlow");
   
               // create TextFlow
               TextFlow text_flow = new TextFlow();
   
               // create text
               Text text_1 = new Text("GeeksforGeeks\n");
   
               // set the text color
               text_1.setFill(Color.RED);
   
               // set font of the text
               text_1.setFont(Font.font("Verdana", 25));
   
               // create text
               Text text_2 = new Text("The computer science portal for geeks");
   
               // set the text color
               text_2.setFill(Color.BLUE);
   
               // set font of the text
               text_2.setFont(Font.font("Helvetica", FontPosture.ITALIC, 15));
   
               // add text to textflow
               text_flow.getChildren().add(text_1);
               text_flow.getChildren().add(text_2);
   
               // create a scene
               Scene scene = new Scene(text_flow, 400, 300);
   
               // set the scene
               stage.setScene(scene);
   
               stage.show();
           }
   
           catch (Exception e) {
   
               System.out.println(e.getMessage());
           }
       }
   
       // Main Method
       public static void main(String args[])
       {
   
           // launch the application
           launch(args);
       }
   }

   Output:

   

2. Java program to create a TextFlow and add text object to it, set text Alignment and set line spacing of the text flow: In this program we will create a TextFlow named text_flow and two Text named text_1 and text_2. Set the fill and font using setFill() and setFont(). Set TextAlignment using setTextAlignment() and set the line spacing using the setLineSpacing() function. Add the text to the text_flow using the getChildren().add() function. Add the text_flow to the Vbox. Add the vbox scene and the scene to the stage. Call the show() function to display the final results.

   // Java program to create a TextFlow and
   // add text object to it, set text Alignment
   // and set line spacing of the text flow.
   import javafx.application.Application;
   import javafx.scene.Scene;
   import javafx.scene.control.*;
   import javafx.scene.layout.*;
   import javafx.stage.Stage;
   import javafx.scene.layout.*;
   import javafx.scene.paint.*;
   import javafx.scene.text.*;
   import javafx.geometry.*;
   import javafx.scene.layout.*;
   import javafx.scene.shape.*;
   
   public class TextFlow_1 extends Application {
   
       // launch the application
       public void start(Stage stage)
       {
   
           try {
   
               // set title for the stage
               stage.setTitle("FlowPane");
   
               // create TextFlow
               TextFlow text_flow = new TextFlow();
   
               // create text
               Text text_1 = new Text("GeeksforGeeks\n");
   
               // set the text color
               text_1.setFill(Color.GREEN);
   
               // set font of the text
               text_1.setFont(Font.font("Verdana", 25));
   
               // create text
               Text text_2 = new Text("The computer science portal for geeks");
   
               // set the text color
               text_2.setFill(Color.BLUE);
   
               // set font of the text
               text_2.setFont(Font.font("Helvetica", FontPosture.ITALIC, 15));
   
               // add text to textflow
               text_flow.getChildren().add(text_1);
               text_flow.getChildren().add(text_2);
   
               // set text Alignment
               text_flow.setTextAlignment(TextAlignment.CENTER);
   
               // set line spacing
               text_flow.setLineSpacing(20.0f);
   
               // create VBox
               VBox vbox = new VBox(text_flow);
   
               // set alignment of vbox
               vbox.setAlignment(Pos.CENTER);
   
               // create a scene
               Scene scene = new Scene(vbox, 400, 300);
   
               // set the scene
               stage.setScene(scene);
   
               stage.show();
           }
   
           catch (Exception e) {
   
               System.out.println(e.getMessage());
           }
       }
   
       // Main Method
       public static void main(String args[])
       {
   
           // launch the application
           launch(args);
       }
   }

   Output:

   

Note: The above programs might not run in an online IDE please use an offline compiler.

Reference: https://docs.oracle.com/javase/8/javafx/api/javafx/scene/text/TextFlow.html