/*
   draw0: enable right-drag to draw multi-line items
*/

import java.awt.*;

public class Draw0 extends Draw
{
   Item newItem() { return (Item)(new Item0()); }

   // RIGHT MOUSE DOWN TO CONTINUE DRAWING ONE MULTI-LINE ITEM

   public boolean mouseDown(Event e, int x, int y) {
      boolean continueItem = isRightButton(e);
      if (! continueItem)
         item[nItems++] = newItem();
      item[nItems-1].add(continueItem ? -x : x, y); // FLAG NEXT LINE WITH NEGATIVE X
      damage = true;
      return true;
   }

   // DETECT RIGHT MOUSE BUTTON EVENT

   boolean isRightButton(Event e) { return (e.modifiers & Event.META_MASK) != 0; }
}