kz.greetgo.msoffice.docx.Margins Maven / Gradle / Ivy

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greetgo library to generate or parse MS Office files

There is a newer version: 0.5.9

package kz.greetgo.msoffice.docx;

import java.io.PrintStream;

public class Margins implements XmlWriter {
  private final String tagName;

  Margins(String tagName) {
    this.tagName = tagName;
  }

  public static class Margin implements XmlWriter {
    private final Side side;

    public enum Side {
      LEFT("w:left"), TOP("w:top"), RIGHT("w:right"), BOTTOM("w:bottom");

      private final String code;

      Side(String code) {
        this.code = code;
      }

      public String getCode() {
        return code;
      }
    }

    private int width = 0;

    public boolean isEmpty() {
      return width == 0;
    }

    public Margin(Side side) {
      this.side = side;
      assert side != null;
    }

    public void setWidth(int width) {
      this.width = width;
    }

    public int getWidth() {
      return width;
    }

    @Override
    public void write(PrintStream out) {
      out.print("<" + getSide().getCode() + " w:w=\"" + getWidth() + "\" w:type=\"dxa\" />");
    }

    public Side getSide() {
      return side;
    }
  }

  private final Margin left = new Margin(Margin.Side.LEFT);
  private final Margin top = new Margin(Margin.Side.TOP);
  private final Margin right = new Margin(Margin.Side.RIGHT);
  private final Margin bottom = new Margin(Margin.Side.BOTTOM);

  @Override
  public void write(PrintStream out) {
    if (isEmpty()) return;
    out.print("<" + tagName + ">");
    getLeft().write(out);
    getTop().write(out);
    getRight().write(out);
    getBottom().write(out);
    out.print("");
  }

  public Margin getLeft() {
    return left;
  }

  public Margin getTop() {
    return top;
  }

  public Margin getRight() {
    return right;
  }

  public Margin getBottom() {
    return bottom;
  }

  public void setWidth(int width) {
    getLeft().setWidth(width);
    getTop().setWidth(width);
    getRight().setWidth(width);
    getBottom().setWidth(width);
  }

  public boolean isEmpty() {
    return getLeft().isEmpty() && getTop().isEmpty() && getRight().isEmpty()
      && getBottom().isEmpty();
  }
}