| 1 | package dolda.jsvc.next; |
| 2 | |
| 3 | import java.io.*; |
| 4 | import org.w3c.dom.*; |
| 5 | |
| 6 | public class IndentWriter extends XmlWriter { |
| 7 | public int collimit = 80; |
| 8 | |
| 9 | public IndentWriter(Document doc) { |
| 10 | super(doc); |
| 11 | } |
| 12 | |
| 13 | private static boolean onlytext(Element el) { |
| 14 | for(Node n = el.getFirstChild(); n != null; n = n.getNextSibling()) { |
| 15 | if(!(n instanceof Text)) |
| 16 | return(false); |
| 17 | } |
| 18 | return(true); |
| 19 | } |
| 20 | |
| 21 | protected boolean prebreak(ColumnWriter out, Element el) { |
| 22 | if(el.getFirstChild() == null) |
| 23 | return(false); |
| 24 | if(onlytext(el)) |
| 25 | return(false); |
| 26 | return(true); |
| 27 | } |
| 28 | |
| 29 | protected int indent(ColumnWriter out, Element el) { |
| 30 | if(onlytext(el)) |
| 31 | return(-1); |
| 32 | return(2); |
| 33 | } |
| 34 | |
| 35 | protected boolean postbreak(ColumnWriter out, Element el) { |
| 36 | if(out.col > collimit) |
| 37 | return(true); |
| 38 | return(!onlytext(el)); |
| 39 | } |
| 40 | |
| 41 | protected void attribute(ColumnWriter out, String nm, String val, int indent) throws IOException { |
| 42 | if(out.col > indent) { |
| 43 | if(nm.length() + val.length() + 4 > collimit) |
| 44 | out.indent(indent); |
| 45 | } |
| 46 | super.attribute(out, nm, val, indent); |
| 47 | } |
| 48 | } |