org.fxmisc.richtext.demo.ManualHighlighting Maven / Gradle / Ivy

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FX-Text-Area for formatted text and other special effects.
There is a newer version: 1.11

package org.fxmisc.richtext.demo;

import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.IndexRange;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Priority;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;

import org.fxmisc.flowless.VirtualizedScrollPane;
import org.fxmisc.richtext.StyleClassedTextArea;

/**
 * Name: ManualHighlighting
 * Description: .
 * 
 * Comment: ...
 * 
 * Copyright: Copyright (c) 2016-2019
 * Company: >StA-Soft<
 * @author StA
 * @version 1.0
 */

public class ManualHighlighting extends Application
{

  /**
   * Main-Methode.
   * @param args Kommandozeilenparameter
   */

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

  /**
   * Area.
   */

  private final StyleClassedTextArea area = new StyleClassedTextArea();

  @Override
  public void start(Stage primaryStage)
  {
    Button red = createColorButton(Color.RED, "red");
    Button green = createColorButton(Color.GREEN, "green");
    Button blue = createColorButton(Color.BLUE, "blue");
    Button bold = createBoldButton("bold");
    HBox panel = new HBox(red, green, blue, bold);

    VirtualizedScrollPane vsPane = new VirtualizedScrollPane<>(area);
    VBox.setVgrow(vsPane, Priority.ALWAYS);
    area.setWrapText(true);
    VBox vbox = new VBox(panel, vsPane);

    Scene scene = new Scene(vbox, 600, 400);
    scene.getStylesheets().add(ManualHighlighting.class.getResource("manual-highlighting.css").toExternalForm());
    primaryStage.setScene(scene);
    primaryStage.setTitle("Manual Highlighting Demo");
    primaryStage.show();

    area.requestFocus();
  }

  /**
   * Create bold button.
   * @param styleClass style class
   * @return bold button
   */

  private Button createBoldButton(String styleClass)
  {
    Button button = new Button("B");
    button.styleProperty().set("-fx-font-weight: bold;");
    setPushHandler(button, styleClass);
    return button;
  }

  /**
   * Create color button.
   * @param color color
   * @param styleClass style class
   * @return color button
   */

  private Button createColorButton(Color color, String styleClass)
  {
    Rectangle rect = new Rectangle(20, 20, color);
    Button button = new Button(null, rect);
    setPushHandler(button, styleClass);
    return button;
  }

  /**
   * Set push handler.
   * @param button button
   * @param styleClass style class
   */

  private void setPushHandler(Button button, String styleClass)
  {
    button.onActionProperty().set(new EventHandler()
    {
      @Override
      public void handle(ActionEvent evt)
      {
        IndexRange range = area.getSelection();
        area.setStyleClass(range.getStart(), range.getEnd(), styleClass);
        area.requestFocus();
      }
    });
  }

}