Class ScreenBuffer

shell/src/main/java/org/crsh/text/ScreenBuffer.java:27–211

import java.util.LinkedList;

public class ScreenBuffer implements Iterable<Object>, Serializable, Screenable {

  /** . */
  private final LinkedList<Object> chunks;

  /** . */
  private Style current;

  /** . */
  private Style next;

  /** Where we flush. */
  private final ScreenContext out;

  public ScreenBuffer() {
    this.chunks = new LinkedList<Object>();
    this.current = Style.style();
    this.next = Style.style();
    this.out = null;
  }

  public ScreenBuffer(ScreenContext out) {
    this.chunks = new LinkedList<Object>();
    this.current = Style.style();
    this.next = Style.style();
    this.out = out;
  }

  public Iterator<Object> iterator() {
    return chunks.iterator();
  }

  public void format(Format format, Appendable appendable) throws IOException {
    format.begin(appendable);
    for (Object chunk : this) {
      if (chunk instanceof Style) {
        format.write((Style)chunk, appendable);
      } else if (chunk instanceof CLS) {
        format.cls(appendable);
      } else {
        format.write((CharSequence)chunk, appendable);
      }
    }
    format.end(appendable);
  }

  public ScreenBuffer append(Iterable<?> data) throws NullPointerException {
    for (Object o : data) {
      append(o);
    }
    return this;
  }

  public ScreenBuffer append(Object... data) throws NullPointerException {
    for (Object o : data) {
      append(o);
    }
    return this;