import java.awt.geom.AffineTransform;
import java.awt.geom.Point2D;
+import java.awt.geom.Rectangle2D;
import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
import java.util.List;
+import org.simantics.db.Resource;
+import org.simantics.diagram.ui.DiagramModelHints;
+import org.simantics.district.network.ui.adapters.DistrictNetworkEdgeElement;
import org.simantics.district.network.ui.adapters.DistrictNetworkVertexElement;
import org.simantics.district.network.ui.nodes.DistrictNetworkVertexNode;
import org.simantics.district.network.ui.nodes.NetworkDrawingNode;
+import org.simantics.district.network.ui.participants.DynamicVisualisationContributionsParticipant;
import org.simantics.g2d.canvas.impl.DependencyReflection.Dependency;
import org.simantics.g2d.canvas.impl.SGNodeReflection.SGInit;
import org.simantics.g2d.diagram.IDiagram;
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.ElementHints;
import org.simantics.g2d.element.IElement;
+import org.simantics.maps.MapScalingTransform;
+import org.simantics.scenegraph.INode;
import org.simantics.scenegraph.Node;
import org.simantics.scenegraph.g2d.G2DParentNode;
-import org.simantics.utils.datastructures.hints.IHintContext.Key;
-import org.simantics.utils.datastructures.hints.IHintContext.KeyOf;
+import org.simantics.scenegraph.utils.GeometryUtils;
public class NetworkDrawingParticipant extends AbstractDiagramParticipant {
+ public static final String NETWORK_DRAWING_NODE = "networkDrawingNode";
+
@Dependency
PickContext pick;
-
- /**
- * A hint key for terminal pick distance in control pixels.
- * @see #PICK_DIST
- */
- public static final Key KEY_PICK_DISTANCE = new KeyOf(Double.class, "PICK_DISTANCE");
+
+ private NetworkDrawingNode node;
+ private DynamicVisualisationContributionsParticipant dynamicVisualisationContributionsParticipant;
+ private AffineTransform transform;
/**
- * Default terminal pick distance in control pixels.
- * @see #DEFAULT_PICK_DISTANCE
+ * Holds the current element for which hover information is shown.
+ * This is just to optimize the
*/
- public static final double PICK_DIST = 10;
-
- private NetworkDrawingNode node;
+ private IElement currentHoverElement;
- private AffineTransform transform;
-
- public NetworkDrawingParticipant(AffineTransform transform) {
+ public NetworkDrawingParticipant(DynamicVisualisationContributionsParticipant dynamicVisualisationContributionsParticipant, AffineTransform transform) {
+ this.dynamicVisualisationContributionsParticipant = dynamicVisualisationContributionsParticipant;
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);
}
-
+
@Override
protected void onDiagramSet(IDiagram newDiagram, IDiagram oldDiagram) {
node.setDiagram(newDiagram);
}
- public boolean pickHoveredElement(Point2D currentMousePos) {
- PickRequest req = new PickRequest(currentMousePos.getX(), currentMousePos.getY()).context(getContext());
- List<IElement> pickables = new ArrayList<IElement>();
+ public boolean pickHoveredElement(Point2D canvasPos, boolean isConnectionTool, AffineTransform viewTransform) {
+ PickRequest req = new PickRequest(getPickRect(canvasPos, viewTransform)).context(getContext());
+ List<IElement> pickables = new ArrayList<>();
pick.pick(diagram, req, pickables);
- List<IElement> snap = new ArrayList<>(diagram.getSnapshot());
-
- snap.removeAll(pickables);
-
- boolean changed = false;
- for (IElement sn : snap) {
- Node node = sn.getHint(DistrictNetworkVertexElement.KEY_DN_VERTEX_NODE);
- if (node instanceof DistrictNetworkVertexNode) {
- if (((DistrictNetworkVertexNode) node).hover(false) && !changed) {
- changed = true;
- }
+
+ Comparator<IElement> nearestVerticesFirst = (IElement e1, IElement e2) -> {
+ // If there are any vertices in the elements, prefer those primarily.
+ DistrictNetworkVertexNode v1 = e1.getHint(DistrictNetworkVertexElement.KEY_DN_VERTEX_NODE);
+ DistrictNetworkVertexNode v2 = e2.getHint(DistrictNetworkVertexElement.KEY_DN_VERTEX_NODE);
+
+ // Don't reorder edges
+ if ((v1 == null && v2 == null))
+ return 0;
+
+ // Sort vertices in nearest first order
+ if (v1 != null && v2 != null) {
+ Rectangle2D b1 = v1.getBounds();
+ Rectangle2D b2 = v2.getBounds();
+ double dist1 = canvasPos.distanceSq(b1.getCenterX(), b1.getCenterY());
+ double dist2 = canvasPos.distanceSq(b2.getCenterX(), b2.getCenterY());
+ return dist1 < dist2 ? -1 : dist1 > dist2 ? 1 : 0;
}
+
+ // Always vertices before edges
+ return v1 != null && v2 == null ? -1 : 1;
+ };
+
+ Collections.sort(pickables, nearestVerticesFirst);
+
+ updateHoveredElement(pickables, true, isConnectionTool, viewTransform);
+ // Will repaint once the async hover info calculation is ready, no need to do it here
+ return false;
+ }
+
+ private boolean updateHoveredElement(List<IElement> elements, boolean hover, boolean isConnectionTool, AffineTransform viewTransform) {
+ if (elements == null || elements.isEmpty()) {
+ currentHoverElement = null;
+ return dynamicVisualisationContributionsParticipant.doHover(false, isConnectionTool);
+ } else {
+ dynamicVisualisationContributionsParticipant.doHover(true, isConnectionTool);
+
+ // we prefer the first picked element only
+ IElement elem = elements.get(0);
+ if (elem.equals(currentHoverElement))
+ return false;
+
+ INode node = elem.getHint(DistrictNetworkVertexElement.KEY_DN_VERTEX_NODE);
+ if (node == null)
+ node = elem.getHint(DistrictNetworkEdgeElement.KEY_DN_EDGE_NODE);
+ if (node == null)
+ return false;
+
+ Resource mapElement = elem.getHint(ElementHints.KEY_OBJECT);
+ Resource runtimeDiagram = diagram.getHint(DiagramModelHints.KEY_DIAGRAM_RUNTIME_RESOURCE);
+ currentHoverElement = elem;
+ dynamicVisualisationContributionsParticipant.hoverNode(runtimeDiagram, mapElement, node, MapScalingTransform.zoomLevel(viewTransform));
+ return true;
}
-
+ }
+
+ public boolean isHoveringOverNode(Point2D canvasPos, AffineTransform viewTransform) {
+ PickRequest req = new PickRequest(getPickRect(canvasPos, viewTransform)).context(getContext());
+ List<IElement> pickables = new ArrayList<>();
+ pick.pick(diagram, req, pickables);
for (IElement elem : pickables) {
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;
+ }
+
+ private Rectangle2D getPickRect(Point2D canvasPos, AffineTransform viewTransform) {
+ double pixelScale = 1.0 / GeometryUtils.getScale(viewTransform);
+ if (Double.isInfinite(pixelScale))
+ pixelScale = 1e-8;
+
+ Rectangle2D pickRect = GeometryUtils.expandRectangle(
+ new Rectangle2D.Double(canvasPos.getX(), canvasPos.getY(), 0, 0),
+ pixelScale * 4);
+
+ return pickRect;
+ }
+
+ public AffineTransform getTransform() {
+ return transform;
}
}
Code Review / simantics / district.git / blobdiff