]> gerrit.simantics Code Review - simantics/district.git/blobdiff - org.simantics.district.network.ui/src/org/simantics/district/network/ui/adapters/DistrictNetworkEdgeElement.java
Use detailed geometry in drawing info labels, symbols and picking.
[simantics/district.git] / org.simantics.district.network.ui / src / org / simantics / district / network / ui / adapters / DistrictNetworkEdgeElement.java
index cf10ffab7c85923d8824b94fcbaefb4363e17e1c..20c86d8ddec6dbc4e83a88a5a630805bb8474e8f 100644 (file)
@@ -1,23 +1,37 @@
 package org.simantics.district.network.ui.adapters;
 
 import java.awt.Color;
+import java.awt.Shape;
+import java.awt.geom.AffineTransform;
+import java.awt.geom.Line2D;
+import java.awt.geom.Path2D;
+import java.awt.geom.PathIterator;
+import java.awt.geom.Point2D;
 import java.awt.geom.Rectangle2D;
 import java.util.Collection;
 import java.util.Collections;
 
+import org.simantics.district.network.ModelledCRS;
 import org.simantics.district.network.ui.DistrictNetworkEdge;
 import org.simantics.district.network.ui.nodes.DistrictNetworkEdgeNode;
 import org.simantics.g2d.connection.handler.ConnectionHandler;
+import org.simantics.g2d.diagram.handler.PickRequest.PickPolicy;
 import org.simantics.g2d.diagram.handler.Topology.Connection;
 import org.simantics.g2d.element.ElementClass;
 import org.simantics.g2d.element.ElementUtils;
 import org.simantics.g2d.element.IElement;
 import org.simantics.g2d.element.SceneGraphNodeKey;
 import org.simantics.g2d.element.handler.InternalSize;
+import org.simantics.g2d.element.handler.Outline;
+import org.simantics.g2d.element.handler.Pick;
 import org.simantics.g2d.element.handler.SceneGraph;
+import org.simantics.g2d.element.handler.impl.ConnectionSelectionOutline;
 import org.simantics.g2d.element.handler.impl.DefaultTransform;
 import org.simantics.g2d.element.handler.impl.SimpleElementLayers;
+import org.simantics.maps.MapScalingTransform;
 import org.simantics.scenegraph.g2d.G2DParentNode;
+import org.simantics.scenegraph.g2d.nodes.SVGNode;
+import org.simantics.scenegraph.utils.NodeUtil;
 import org.simantics.utils.datastructures.hints.IHintContext.Key;
 import org.simantics.utils.datastructures.hints.IHintContext.KeyOf;
 import org.slf4j.Logger;
@@ -27,7 +41,8 @@ public class DistrictNetworkEdgeElement {
 
     public static final Key KEY_DN_EDGE = new KeyOf(DistrictNetworkEdge.class, "DN_EDGE");
     public static final Key KEY_DN_EDGE_NODE = new SceneGraphNodeKey(DistrictNetworkEdgeNode.class, "DN_EDGE_NODE");
-    
+    public static final Key KEY_DN_EDGE_SYMBOL_NODE = new SceneGraphNodeKey(DistrictNetworkEdgeNode.class, "DN_EDGE_SYMBOL_NODE");
+
     public static final ElementClass CLASS =
             ElementClass.compile(
                     DefaultTransform.INSTANCE,
@@ -35,14 +50,16 @@ public class DistrictNetworkEdgeElement {
                     DNEdgeSceneGraph.INSTANCE,
                     DNEdgeConnectionHandler.INSTANCE,
                     SimpleElementLayers.INSTANCE,
+                    // TODO: do we need this and does it work?
+                    ConnectionSelectionOutline.INSTANCE,
                     DistrictNetworkAdditionalColor.INSTANCE
             ).setId(DistrictNetworkEdgeElement.class.getSimpleName());
-    
+
     static final class DNEdgeSceneGraph implements SceneGraph {
-        
+
         public static final DNEdgeSceneGraph INSTANCE = new DNEdgeSceneGraph();
 
-        private static final long serialVersionUID = 8894367073815556871L;
+        private static final long serialVersionUID = 68135568495835923L;
 
         @Override
         public void init(IElement edgeElement, G2DParentNode parent) {
@@ -54,48 +71,162 @@ public class DistrictNetworkEdgeElement {
                 if (node == null) {
                     node = parent.addNode(ElementUtils.generateNodeId(edgeElement), DistrictNetworkEdgeNode.class);
                     edgeElement.setHint(KEY_DN_EDGE_NODE, node);
+                    
+                    SVGNode symbol = node.addNode(ElementUtils.generateNodeId(edgeElement), SVGNode.class);
+                    edgeElement.setHint(KEY_DN_EDGE_SYMBOL_NODE, symbol);
                 }
                 
                 node.setColor(ElementUtils.getAdditionalColor(edgeElement, Color.BLUE));
                 
                 node.setDNEdge(edge);
+                AffineTransform at = ElementUtils.getTransform(edgeElement);
+                if (at != null)
+                    node.setTransform(at);
             }
         }
 
         @Override
         public void cleanup(IElement edge) {
+            ElementUtils.removePossibleNode(edge, KEY_DN_EDGE_SYMBOL_NODE);
             ElementUtils.removePossibleNode(edge, KEY_DN_EDGE_NODE);
             edge.removeHint(KEY_DN_EDGE_NODE);
+            edge.removeHint(KEY_DN_EDGE_SYMBOL_NODE);
         }
     }
-    
-    static final class DNEdgeInternalSize implements InternalSize {
+
+    static final class DNEdgeInternalSize implements InternalSize, Outline, Pick {
 
         private static final Logger LOGGER = LoggerFactory.getLogger(DNEdgeInternalSize.class);
-        
-        private static final long serialVersionUID = -2725017034692179676L;
-        
+
+        private static final long serialVersionUID = -7346653820911240628L;
+
         public static final DNEdgeInternalSize INSTANCE = new DNEdgeInternalSize();
 
         @Override
         public Rectangle2D getBounds(IElement e, Rectangle2D size) {
-            DistrictNetworkEdge edge = e.getHint(KEY_DN_EDGE);
+            DistrictNetworkEdgeNode edgeNode = e.getHint(KEY_DN_EDGE_NODE);
             if (size == null)
                 size = new Rectangle2D.Double();
-            if (edge != null)
-                edge.getBounds(size);
+            if (edgeNode != null)
+                size.setFrame(edgeNode.getBoundsInLocal());
             else
                 LOGGER.debug("Element {} does not have edge!", e);
 
             return size;
         }
-        
+
+        @Override
+        public Shape getElementShape(IElement e) {
+            DistrictNetworkEdgeNode edgeNode = e.getHint(KEY_DN_EDGE_NODE);
+            if (edgeNode != null) {
+                return edgeNode.getPath();
+            } else {
+                return getBounds(e, null);
+            }
+        }
+
+        @Override
+        public boolean pickTest(IElement e, Shape s, PickPolicy policy) {
+            DistrictNetworkEdge edge = e.getHint(KEY_DN_EDGE);
+            if (edge != null) {
+                Rectangle2D bounds = getBounds(s);
+                switch (policy) {
+                case PICK_CONTAINED_OBJECTS:    return pickContainedObjects(edge, bounds);
+                case PICK_INTERSECTING_OBJECTS: return pickIntersectingObjects(e, edge, bounds);
+                }
+                return false;
+            }
+
+            return false;
+        }
+
+        private boolean pickContainedObjects(DistrictNetworkEdge edge, Rectangle2D bounds) {
+            double bminx = bounds.getMinX() / MapScalingTransform.getScaleX();
+            double bminy = bounds.getMinY() / MapScalingTransform.getScaleY();
+            double bmaxx = bounds.getMaxX() / MapScalingTransform.getScaleX();
+            double bmaxy = bounds.getMaxY() / MapScalingTransform.getScaleY();
+
+            double bsminx = ModelledCRS.xToLongitude(bminx);
+            double bsminy = ModelledCRS.yToLatitude(-bminy); // Invert for Simantics diagram coordinate system
+            double bsmaxx = ModelledCRS.xToLongitude(bmaxx);
+            double bsmaxy = ModelledCRS.yToLatitude(-bmaxy); // Invert for Simantics diagram coordinate system
+
+            double boundsMinY = Math.min(bsminy, bsmaxy);
+            double boundsMaxY = Math.max(bsminy, bsmaxy);
+
+            Point2D start = edge.getStartPoint();
+            Point2D end = edge.getEndPoint();
+
+            double eminx = Math.min(start.getX(), end.getX());
+            double eminy = Math.min(start.getY(), end.getY());
+            double emaxx = Math.max(start.getX(), end.getX());
+            double emaxy = Math.max(start.getY(), end.getY());
+
+            return eminx >= bsminx && eminy >= boundsMinY && emaxx <= bsmaxx && emaxy <= boundsMaxY;
+        }
+
+        private boolean pickIntersectingObjects(IElement e, DistrictNetworkEdge edge, Rectangle2D bounds) {
+            double dx = bounds.getWidth() / MapScalingTransform.getScaleX();
+            double dy = bounds.getHeight() / MapScalingTransform.getScaleY();
+            
+            // Half the diagonal + half of the line width
+            DistrictNetworkEdgeNode node = e.getHint(KEY_DN_EDGE_NODE);
+            AffineTransform at = NodeUtil.getLocalToGlobalTransform(node);
+            
+            Path2D path = node.getPath();
+            if (path == null)
+                return false;
+            
+            double lineWidth = node.getStrokeWidth(at, true);
+            double tolerance = Math.sqrt(dx * dx + dy * dy) / 2 + lineWidth / 2;
+            
+            double sx = bounds.getCenterX() / MapScalingTransform.getScaleX();
+            double sy = bounds.getCenterY() / MapScalingTransform.getScaleY();
+            
+            double coords[] = new double[6];
+            Point2D prevPoint = new Point2D.Double(), curPoint = new Point2D.Double();
+            Line2D line = new Line2D.Double();
+            for (PathIterator it = path.getPathIterator(null); !it.isDone(); it.next()) {
+                int type = it.currentSegment(coords);
+                switch (type) {
+                case PathIterator.SEG_MOVETO:
+                    curPoint.setLocation(coords[0], coords[1]);
+                    break;
+                case PathIterator.SEG_LINETO:
+                    prevPoint.setLocation(curPoint);
+                    curPoint.setLocation(coords[0], coords[1]);
+                    line.setLine(prevPoint, curPoint);
+                    double distSq = line.ptSegDistSq(sx, sy);
+//                    System.out.println("s: " + sx + ", " + sy);
+//                    System.out.println("ss: " + ssx + ", " + ssy);
+//                    System.out.println("p1: " + edge.getStartPoint());
+//                    System.out.println("p2: " + edge.getEndPoint());
+//                    System.out.println("line: " + "(" + line.getX1() + ", " + line.getY1() + ", " + line.getX2() + ", " + line.getY2() + ")");
+//                    System.out.println("distance from line is " + Math.sqrt(distSq) + " with tolerance " + tolerance);
+                    if (distSq <= tolerance * tolerance)
+                        return true; 
+                    break;
+                default:
+                    LOGGER.error("Invalid edge path", new IllegalStateException());
+                    return false;
+                }
+            }
+            
+            return false;
+        }
+
+        private Rectangle2D getBounds(Shape shape) {
+            if (shape instanceof Rectangle2D)
+                return (Rectangle2D) shape;
+            return shape.getBounds2D();
+        }
+
     }
-    
+
     static class DNEdgeConnectionHandler implements ConnectionHandler {
 
-        private static final long serialVersionUID = -410377314637446238L;
-        
+        private static final long serialVersionUID = -6882671891381761687L;
+
         public static final DNEdgeConnectionHandler INSTANCE = new DNEdgeConnectionHandler();
 
         @Override
@@ -118,4 +249,5 @@ public class DistrictNetworkEdgeElement {
             return Collections.emptyList();
         }
     }
+
 }