LineTypeChanger.java

package oripa.paint.creasepattern.tool;

import java.util.Collection;

import oripa.value.OriLine;


public class LineTypeChanger {

	//TODO use LineType instead of TypeForChange
	/**
	 * 
	 * @param l
	 * @param lines
	 * @param from
	 * @param to
	 */
	public void alterLineType(OriLine l, Collection<OriLine> lines,
			TypeForChange from, TypeForChange to) {
		if (from == TypeForChange.RIDGE  && l.typeVal != OriLine.TYPE_RIDGE) {
			return;
		}
		if (from == TypeForChange.VALLEY && l.typeVal != OriLine.TYPE_VALLEY) {
			return;
		}

		switch (to) {
		case RIDGE:
			l.typeVal = OriLine.TYPE_RIDGE;
			break;
		case VALLEY:
			l.typeVal = OriLine.TYPE_VALLEY;
			break;
		case AUX:
			l.typeVal = OriLine.TYPE_NONE;
			break;
		case CUT:
			l.typeVal = OriLine.TYPE_CUT;
			break;
		case DELETE:
			ElementRemover remover = new ElementRemover();
			remover.removeLine(l, lines);
			break;
		case FLIP: 
			if (l.typeVal == OriLine.TYPE_RIDGE) {
				l.typeVal = OriLine.TYPE_VALLEY;
			} else if (l.typeVal == OriLine.TYPE_VALLEY) {
				l.typeVal = OriLine.TYPE_RIDGE;
			}
			break;
		default:
			break;
		}
	}
}