org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DeferredRenderingNode.java

   1 package org.simantics.district.network.ui.nodes;
   2
   3 import java.awt.Graphics2D;
   4 import java.awt.geom.AffineTransform;
   5 import java.awt.geom.Rectangle2D;
   6 import java.util.LinkedList;
   7 import java.util.List;
   8 import java.util.ListIterator;
   9
  10 import org.simantics.scenegraph.g2d.G2DNode;
  11 import org.simantics.utils.datastructures.Pair;
  12
  13 public class DeferredRenderingNode extends G2DNode {
  14
  15         private static final long serialVersionUID = 1L;
  16
  17         List<Pair<AffineTransform, DeferredNode>> queue = new LinkedList<>();
  18
  19         @Override
  20         public void render(Graphics2D g2d) {
  21                 AffineTransform currentTransform = g2d.getTransform();
  22
  23                 ListIterator<Pair<AffineTransform, DeferredNode>> listIterator = queue.listIterator();
  24                 while (listIterator.hasNext()) {
  25                         Pair<AffineTransform, DeferredNode> node = listIterator.next();
  26                         listIterator.remove();
  27
  28                         g2d.setTransform(node.first);
  29                         node.second.renderDeferred(g2d);
  30                 }
  31
  32                 g2d.setTransform(currentTransform);
  33         }
  34
  35         @Override
  36         public Rectangle2D getBoundsInLocal() {
  37                 return null;
  38         }
  39
  40         public void deferNode(AffineTransform transform, DeferredNode node) {
  41                 queue.add(new Pair<>(transform, node));
  42         }
  43 }