-/*
- * Copyright (c) 2003, the JUNG Project and the Regents of the University of
- * California All rights reserved.
- *
- * This software is open-source under the BSD license; see either "license.txt"
- * or http://jung.sourceforge.net/license.txt for a description.
- *
- *
- *
- */
-package edu.uci.ics.jung.algorithms.layout;
-
-import java.awt.Dimension;
-import java.awt.geom.AffineTransform;
-import java.awt.geom.Point2D;
-import java.util.HashMap;
-import java.util.Map;
-
-import org.apache.commons.collections15.Transformer;
-
-import edu.uci.ics.jung.algorithms.util.IterativeContext;
-import edu.uci.ics.jung.graph.Graph;
-
-/**
- * A {@code Layout} implementation that combines
- * multiple other layouts so that they may be manipulated
- * as one layout. The relaxer thread will step each layout
- * in sequence.
- *
- * @author Tom Nelson - tomnelson@dev.java.net
- *
- * @param <V> the vertex type
- * @param <E> the edge type
- */
-public class AggregateLayout<V, E> implements Layout<V,E>, IterativeContext {
-
- protected Layout<V,E> delegate;
- protected Map<Layout<V,E>,Point2D> layouts = new HashMap<Layout<V,E>,Point2D>();
-
- /**
- * Creates an instance backed by the specified {@code delegate}.
- * @param delegate
- */
- public AggregateLayout(Layout<V, E> delegate) {
- this.delegate = delegate;
- }
-
- /**
- * @return the delegate
- */
- public Layout<V, E> getDelegate() {
- return delegate;
- }
-
- /**
- * @param delegate the delegate to set
- */
- public void setDelegate(Layout<V, E> delegate) {
- this.delegate = delegate;
- }
-
- /**
- * adds the passed layout as a sublayout, also specifying
- * the center of where this sublayout should appear
- * @param layout
- * @param center
- */
- public void put(Layout<V,E> layout, Point2D center) {
- layouts.put(layout,center);
- }
-
- /**
- * Returns the center of the passed layout.
- * @param layout
- * @return the center of the passed layout
- */
- public Point2D get(Layout<V,E> layout) {
- return layouts.get(layout);
- }
-
- /**
- * Removes {@code layout} from this instance.
- */
- public void remove(Layout<V,E> layout) {
- layouts.remove(layout);
- }
-
- /**
- * Removes all layouts from this instance.
- */
- public void removeAll() {
- layouts.clear();
- }
-
- /**
- * Returns the graph for which this layout is defined.
- * @return the graph for which this layout is defined
- * @see edu.uci.ics.jung.algorithms.layout.Layout#getGraph()
- */
- public Graph<V, E> getGraph() {
- return delegate.getGraph();
- }
-
- /**
- * Returns the size of the underlying layout.
- * @return the size of the underlying layout
- * @see edu.uci.ics.jung.algorithms.layout.Layout#getSize()
- */
- public Dimension getSize() {
- return delegate.getSize();
- }
-
- /**
- *
- * @see edu.uci.ics.jung.algorithms.layout.Layout#initialize()
- */
- public void initialize() {
- delegate.initialize();
- for(Layout<V,E> layout : layouts.keySet()) {
- layout.initialize();
- }
- }
-
- /**
- * Override to test if the passed vertex is locked in
- * any of the layouts.
- * @param v
- * @return true if v is locked in any of the layouts, and false otherwise
- * @see edu.uci.ics.jung.algorithms.layout.Layout#isLocked(java.lang.Object)
- */
- public boolean isLocked(V v) {
- boolean locked = false;
- for(Layout<V,E> layout : layouts.keySet()) {
- locked |= layout.isLocked(v);
- }
- locked |= delegate.isLocked(v);
- return locked;
- }
-
- /**
- * override to lock or unlock this vertex in any layout with
- * a subgraph containing it
- * @param v
- * @param state
- * @see edu.uci.ics.jung.algorithms.layout.Layout#lock(java.lang.Object, boolean)
- */
- public void lock(V v, boolean state) {
- for(Layout<V,E> layout : layouts.keySet()) {
- if(layout.getGraph().getVertices().contains(v)) {
- layout.lock(v, state);
- }
- }
- delegate.lock(v, state);
- }
-
- /**
- *
- * @see edu.uci.ics.jung.algorithms.layout.Layout#reset()
- */
- public void reset() {
- for(Layout<V,E> layout : layouts.keySet()) {
- layout.reset();
- }
- delegate.reset();
- }
-
- /**
- * @param graph
- * @see edu.uci.ics.jung.algorithms.layout.Layout#setGraph(edu.uci.ics.jung.graph.Graph)
- */
- public void setGraph(Graph<V, E> graph) {
- delegate.setGraph(graph);
- }
-
- /**
- * @param initializer
- * @see edu.uci.ics.jung.algorithms.layout.Layout#setInitializer(org.apache.commons.collections15.Transformer)
- */
- public void setInitializer(Transformer<V, Point2D> initializer) {
- delegate.setInitializer(initializer);
- }
-
- /**
- * @param v
- * @param location
- * @see edu.uci.ics.jung.algorithms.layout.Layout#setLocation(java.lang.Object, java.awt.geom.Point2D)
- */
- public void setLocation(V v, Point2D location) {
- boolean wasInSublayout = false;
- for(Layout<V,E> layout : layouts.keySet()) {
- if(layout.getGraph().getVertices().contains(v)) {
- Point2D center = layouts.get(layout);
- // transform by the layout itself, but offset to the
- // center of the sublayout
- Dimension d = layout.getSize();
-
- AffineTransform at =
- AffineTransform.getTranslateInstance(-center.getX()+d.width/2,-center.getY()+d.height/2);
- Point2D localLocation = at.transform(location, null);
- layout.setLocation(v, localLocation);
- wasInSublayout = true;
- }
- }
- if(wasInSublayout == false && getGraph().getVertices().contains(v)) {
- delegate.setLocation(v, location);
- }
- }
-
- /**
- * @param d
- * @see edu.uci.ics.jung.algorithms.layout.Layout#setSize(java.awt.Dimension)
- */
- public void setSize(Dimension d) {
- delegate.setSize(d);
- }
-
- /**
- * Returns a map from each {@code Layout} instance to its center point.
- */
- public Map<Layout<V,E>,Point2D> getLayouts() {
- return layouts;
- }
-
- /**
- * Returns the location of the vertex. The location is specified first
- * by the sublayouts, and then by the base layout if no sublayouts operate
- * on this vertex.
- * @return the location of the vertex
- * @see org.apache.commons.collections15.Transformer#transform(java.lang.Object)
- */
- public Point2D transform(V v) {
- boolean wasInSublayout = false;
- for(Layout<V,E> layout : layouts.keySet()) {
- if(layout.getGraph().getVertices().contains(v)) {
- wasInSublayout = true;
- Point2D center = layouts.get(layout);
- // transform by the layout itself, but offset to the
- // center of the sublayout
- Dimension d = layout.getSize();
- AffineTransform at =
- AffineTransform.getTranslateInstance(center.getX()-d.width/2,
- center.getY()-d.height/2);
- return at.transform(layout.transform(v),null);
- }
- }
- if(wasInSublayout == false) {
- return delegate.transform(v);
- }
- return null;
-
- }
-
- /**
- * Check all sublayouts.keySet() and the delegate layout, returning
- * done == true iff all are done.
- */
- public boolean done() {
- boolean done = true;
- for(Layout<V,E> layout : layouts.keySet()) {
- if(layout instanceof IterativeContext) {
- done &= ((IterativeContext)layout).done();
- }
- }
- if(delegate instanceof IterativeContext) {
- done &= ((IterativeContext)delegate).done();
- }
- return done;
- }
-
- /**
- * call step on any sublayout that is also an IterativeContext
- * and is not done
- */
- public void step() {
- for(Layout<V,E> layout : layouts.keySet()) {
- if(layout instanceof IterativeContext) {
- IterativeContext context = (IterativeContext)layout;
- if(context.done() == false) {
- context.step();
- }
- }
- }
- if(delegate instanceof IterativeContext) {
- IterativeContext context = (IterativeContext)delegate;
- if(context.done() == false) {
- context.step();
- }
- }
- }
-
-}
Code Review / controller.git / blobdiff