Improve HoverInfoStyle performance for district network diagrams

[simantics/district.git] / org.simantics.district.network.ui / src / org / simantics / district / network / ui / nodes / DistrictNetworkHoverInfoNode.java

diff --git a/org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DistrictNetworkHoverInfoNode.java b/org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DistrictNetworkHoverInfoNode.java
index 7a75ad5f2e4382390f798ebc0ea38ea7c7614da5..07ad2eedb4df1decd66f4ac0e965a76a67d6039c 100644 (file)
--- a/org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DistrictNetworkHoverInfoNode.java
+++ b/org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DistrictNetworkHoverInfoNode.java
@@ -13,9 +13,13 @@ import java.util.concurrent.atomic.AtomicReference;
 
 import org.simantics.district.network.ui.styles.DistrictNetworkHoverInfoStyle;
 import org.simantics.maps.MapScalingTransform;
+import org.simantics.scenegraph.INode;
+import org.simantics.scenegraph.NodeException;
 import org.simantics.scenegraph.ParentNode;
 import org.simantics.scenegraph.g2d.G2DNode;
+import org.simantics.scenegraph.g2d.G2DParentNode;
 import org.simantics.scenegraph.g2d.nodes.spatial.RTreeNode;
+import org.simantics.scenegraph.profile.common.ProfileVariables;
 import org.simantics.scenegraph.utils.DPIUtil;
 import org.simantics.scenegraph.utils.NodeUtil;
 import org.simantics.scl.runtime.Lists;
@@ -42,12 +46,10 @@ public class DistrictNetworkHoverInfoNode extends G2DNode implements HoverSensit
 
        private Point2D mousePosition;
        
-       private static AtomicReference<DistrictNetworkHoverInfoNode> activeNode = new AtomicReference<>();
+       private static AtomicReference<G2DParentNode> activeNode = new AtomicReference<>();
 
        @Override
        public void render(Graphics2D g) {
-               if (!hover || activeNode.get() != this)
-                       return;
 
                ParentNode<?> root = (ParentNode<?>) NodeUtil.getNearestParentOfType(this, RTreeNode.class);
                DeferredRenderingNode deferred = root != null ? (DeferredRenderingNode) root.getNode(DistrictNetworkHoverInfoStyle.HOVER_INFO_DEFERRED) : null;
@@ -59,6 +61,8 @@ public class DistrictNetworkHoverInfoNode extends G2DNode implements HoverSensit
        
        @Override
        public void renderDeferred(Graphics2D g) {
+           if (!hover || activeNode.get() == null)
+               return;
                AffineTransform ot = g.getTransform();
                Font of = g.getFont();
                doRender(g);
@@ -67,7 +71,10 @@ public class DistrictNetworkHoverInfoNode extends G2DNode implements HoverSensit
        }
 
        private void doRender(Graphics2D g) {
-               g.transform(MapScalingTransform.INVERSE);
+           AffineTransform tt = getTransform();
+               g.transform(tt);
+               if (mousePosition == null)
+                   return;
                g.translate(mousePosition.getX(), mousePosition.getY());
                //g.translate(origin.getX(), origin.getY());
                double scale = 1.5 / g.getTransform().getScaleX();
@@ -119,15 +126,15 @@ public class DistrictNetworkHoverInfoNode extends G2DNode implements HoverSensit
 
        @Override
        public boolean hover(boolean hover, boolean isConnectionTool) {
-               hover = hover && activeNode.updateAndGet(current -> current == null ? this : current) == this;
+//             hover = hover && activeNode.updateAndGet(current -> current == null ? this : current) == this;
                boolean changed = hover != this.hover;
                this.hover = hover;
-               
-               if (changed) {
-                       if (!hover) activeNode.updateAndGet(current -> current == this ? null : current);
-                       repaint();
-               }
-               
+//             
+//             if (changed) {
+//                     if (!hover) activeNode.updateAndGet(current -> current == this ? null : current);
+//                     repaint();
+//             }
+//             
                return changed;
        }
        
@@ -139,6 +146,31 @@ public class DistrictNetworkHoverInfoNode extends G2DNode implements HoverSensit
        @Override
        public void delete() {
                super.delete();
-               activeNode.getAndUpdate(current -> current == this ? null : current);
+               activeNode.set(null);
        }
+
+    public void hover2(G2DParentNode hoveredNode) {
+        ParentNode<?> root = (ParentNode<?>) NodeUtil.getNearestParentOfType(parent, RTreeNode.class);
+        if (root != null) {
+            
+            INode child = ProfileVariables.browseChild(root, "");
+            if(child == null) {
+                throw new NullPointerException("Scenegraph child node was not found: " + "");
+            }
+
+            INode existing = NodeUtil.getChildById(child, DistrictNetworkHoverInfoStyle.HOVER_INFO_DEFERRED);
+            if (existing == null) {
+                if (child instanceof ParentNode<?>) {
+                    existing = ((ParentNode<?>) child).addNode(DistrictNetworkHoverInfoStyle.HOVER_INFO_DEFERRED, DeferredRenderingNode.class);
+                    ((DeferredRenderingNode)existing).setZIndex(Integer.MAX_VALUE);
+                } else {
+                    throw new NodeException("Cannot claim child node for non-parent-node " + child);
+                }
+            }
+        }
+
+        activeNode.set(hoveredNode);
+        repaint();
+    }
+
 }