content: /*
  Copyright (C) 2018-2019 Andres Castellanos
  
  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.
  
  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
  
  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <https://www.gnu.org/licenses/>
  */
  
  package jupiter.utils.io;
  
  import javafx.application.Platform;
  
  import org.fxmisc.richtext.InlineCssTextArea;
  
  import jupiter.utils.Data;
  
  
  /** GUI console output. */
  public final class GUIConsoleOutput implements Output {
  
    /** GUI text area */
    private final InlineCssTextArea area;
  
    /**
     * Creates a new GUI console output.
     *
     * @param area GUI text area
     */
    public GUIConsoleOutput(InlineCssTextArea area) {
      this.area = area;
    }
  
    /** {@inheritDoc} */
    @Override
    public void print(String txt) {
      appendText(txt);
    }
  
    /** {@inheritDoc} */
    @Override
    public void println(String txt) {
      appendText(txt + Data.EOL);
    }
  
    /** {@inheritDoc} */
    @Override
    public void println() {
      appendText(Data.EOL);
    }
  
    /**
     * Appends text to text area.
     *
     * @param txt text to append
     */
    private void appendText(String txt) {
      Platform.runLater(() -> {
        area.moveTo(area.getLength());
        int pos = area.getLength();
        area.appendText(txt);
        area.setStyle(pos, area.getLength(), "-fx-fill: #222222;");
      });
    }
  
  }
  