Optimization of district scene graph node rendering

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

diff --git a/org.simantics.district.network.ui/src/org/simantics/district/network/ui/NetworkDrawingParticipant.java b/org.simantics.district.network.ui/src/org/simantics/district/network/ui/NetworkDrawingParticipant.java
index a340d8591f625f0fdb78a7de27edaec6b34c3112..da2bf32aec1a6ab3170e1386da2dddda8a2e9b7b 100644 (file)
--- a/org.simantics.district.network.ui/src/org/simantics/district/network/ui/NetworkDrawingParticipant.java
+++ b/org.simantics.district.network.ui/src/org/simantics/district/network/ui/NetworkDrawingParticipant.java
@@ -1,12 +1,17 @@
 
 package org.simantics.district.network.ui;
 
+import java.awt.geom.AffineTransform;
 import java.awt.geom.Point2D;
+import java.awt.geom.Rectangle2D;
 import java.util.ArrayList;
 import java.util.List;
 
+import org.simantics.district.network.ui.adapters.DistrictNetworkEdgeElement;
 import org.simantics.district.network.ui.adapters.DistrictNetworkVertexElement;
+import org.simantics.district.network.ui.nodes.DistrictNetworkEdgeNode;
 import org.simantics.district.network.ui.nodes.DistrictNetworkVertexNode;
+import org.simantics.district.network.ui.nodes.HoverSensitiveNode;
 import org.simantics.district.network.ui.nodes.NetworkDrawingNode;
 import org.simantics.g2d.canvas.impl.DependencyReflection.Dependency;
 import org.simantics.g2d.canvas.impl.SGNodeReflection.SGInit;
@@ -15,14 +20,17 @@ import org.simantics.g2d.diagram.handler.PickContext;
 import org.simantics.g2d.diagram.handler.PickRequest;
 import org.simantics.g2d.diagram.participant.AbstractDiagramParticipant;
 import org.simantics.g2d.element.IElement;
-import org.simantics.scenegraph.g2d.G2DNode;
+import org.simantics.scenegraph.Node;
 import org.simantics.scenegraph.g2d.G2DParentNode;
+import org.simantics.scenegraph.g2d.IG2DNode;
 import org.simantics.utils.datastructures.hints.IHintContext.Key;
 import org.simantics.utils.datastructures.hints.IHintContext.KeyOf;
 
 public class NetworkDrawingParticipant extends AbstractDiagramParticipant {
 
-    @Dependency
+    public static final String NETWORK_DRAWING_NODE = "networkDrawingNode";
+
+       @Dependency
     PickContext pick;
     
     /**
@@ -38,10 +46,17 @@ public class NetworkDrawingParticipant extends AbstractDiagramParticipant {
     public static final double PICK_DIST = 10;
     
     private NetworkDrawingNode node;
+
+    private AffineTransform transform;
     
+    public NetworkDrawingParticipant(AffineTransform transform) {
+        this.transform = transform;
+    }
+
     @SGInit
     public void initSG(G2DParentNode parent) {
-        node = parent.addNode("networkDrawingNode", NetworkDrawingNode.class);
+        node = parent.addNode(NETWORK_DRAWING_NODE, NetworkDrawingNode.class);
+        node.setTransform(transform);
         node.setNetworkDrawingParticipant(this);
     }
     
@@ -50,34 +65,57 @@ public class NetworkDrawingParticipant extends AbstractDiagramParticipant {
         node.setDiagram(newDiagram);
     }
 
-    public boolean pickHoveredElement(Point2D currentMousePos) {
-        PickRequest req = new PickRequest(currentMousePos.getX(), currentMousePos.getY());
-        List<IElement> pickables = new ArrayList<IElement>();
+    public boolean pickHoveredElement(Point2D currentMousePos, boolean isConnectionTool) {
+        PickRequest req = new PickRequest(new Rectangle2D.Double(currentMousePos.getX(), currentMousePos.getY(), 1e-8, 1e-8)).context(getContext());
+        List<IElement> pickables = new ArrayList<>();
         pick.pick(diagram, req, pickables);
-        
-        List<IElement> snap = new ArrayList<>(diagram.getSnapshot());
-        
-        snap.removeAll(pickables);
-        
+
+        List<IElement> snap = diagram.getSnapshot();
+
         boolean changed = false;
-        for (IElement sn : snap) {
-            G2DNode node = sn.getHint(DistrictNetworkVertexElement.KEY_DN_VERTEX_NODE);
+        changed |= hoverNodes(snap, false, isConnectionTool, currentMousePos);
+        changed |= hoverNodes(pickables, true, isConnectionTool, currentMousePos);
+        return changed;
+    }
+
+    private boolean hoverNodes(List<IElement> elements, boolean hover, boolean isConnectionTool, Point2D p) {
+        boolean changed = false;
+        for (IElement elem : elements) {
+            Node node = elem.getHint(DistrictNetworkVertexElement.KEY_DN_VERTEX_NODE);
             if (node instanceof DistrictNetworkVertexNode) {
-                if (((DistrictNetworkVertexNode) node).hover(false) && !changed) {
-                    changed = true;
+                changed |= ((DistrictNetworkVertexNode) node).hover(hover, isConnectionTool);
+                if (hover)
+                    ((DistrictNetworkVertexNode) node).setMousePosition(p);
+            } else {
+                node = elem.getHint(DistrictNetworkEdgeElement.KEY_DN_EDGE_NODE);
+                if (node instanceof DistrictNetworkEdgeNode) {
+                    for (IG2DNode n : ((DistrictNetworkEdgeNode) node).getNodes()) {
+                        if (n instanceof HoverSensitiveNode) {
+                            changed |= ((HoverSensitiveNode)n).hover(hover, isConnectionTool);
+                            if (hover)
+                                ((HoverSensitiveNode)n).setMousePosition(p);
+                        }
+                    }
                 }
             }
         }
-        
+        return changed;
+    }
+
+    public boolean isHoveringOverNode(Point2D currentMousePos) {
+        PickRequest req = new PickRequest(currentMousePos).context(getContext());
+        List<IElement> pickables = new ArrayList<IElement>();
+        pick.pick(diagram, req, pickables);
         for (IElement elem : pickables) {
-            G2DNode node = elem.getHint(DistrictNetworkVertexElement.KEY_DN_VERTEX_NODE);
+            Node node = elem.getHint(DistrictNetworkVertexElement.KEY_DN_VERTEX_NODE);
             if (node instanceof DistrictNetworkVertexNode) {
-                if (((DistrictNetworkVertexNode) node).hover(true) && !changed) {
-                    changed = true;
-                }
+                return true;
             }
         }
-        return changed;
+        return false;
     }
 
+    public AffineTransform getTransform() {
+        return transform;
+    }
 }