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Diffstat (limited to 'jsf/plugins/org.eclipse.jst.jsf.facesconfig.ui/src/org/eclipse/jst/jsf/facesconfig/ui/pageflow/layout/PageflowLayoutManager.java')
-rw-r--r--jsf/plugins/org.eclipse.jst.jsf.facesconfig.ui/src/org/eclipse/jst/jsf/facesconfig/ui/pageflow/layout/PageflowLayoutManager.java550
1 files changed, 0 insertions, 550 deletions
diff --git a/jsf/plugins/org.eclipse.jst.jsf.facesconfig.ui/src/org/eclipse/jst/jsf/facesconfig/ui/pageflow/layout/PageflowLayoutManager.java b/jsf/plugins/org.eclipse.jst.jsf.facesconfig.ui/src/org/eclipse/jst/jsf/facesconfig/ui/pageflow/layout/PageflowLayoutManager.java
deleted file mode 100644
index 74c3470a9..000000000
--- a/jsf/plugins/org.eclipse.jst.jsf.facesconfig.ui/src/org/eclipse/jst/jsf/facesconfig/ui/pageflow/layout/PageflowLayoutManager.java
+++ /dev/null
@@ -1,550 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2004, 2006 Sybase, Inc. and others.
- *
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * Sybase, Inc. - initial API and implementation
- *******************************************************************************/
-package org.eclipse.jst.jsf.facesconfig.ui.pageflow.layout;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-
-import org.eclipse.draw2d.geometry.Insets;
-import org.eclipse.draw2d.geometry.Rectangle;
-import org.eclipse.draw2d.graph.DirectedGraph;
-import org.eclipse.draw2d.graph.DirectedGraphLayout;
-import org.eclipse.draw2d.graph.Edge;
-import org.eclipse.draw2d.graph.EdgeList;
-import org.eclipse.draw2d.graph.Node;
-import org.eclipse.draw2d.graph.NodeList;
-import org.eclipse.emf.common.util.EList;
-import org.eclipse.jst.jsf.facesconfig.ui.pageflow.model.Pageflow;
-import org.eclipse.jst.jsf.facesconfig.ui.pageflow.model.PageflowFactory;
-import org.eclipse.jst.jsf.facesconfig.ui.pageflow.model.PageflowLink;
-import org.eclipse.jst.jsf.facesconfig.ui.pageflow.model.PageflowLinkBendpoint;
-import org.eclipse.jst.jsf.facesconfig.ui.pageflow.model.PageflowNode;
-import org.eclipse.jst.jsf.facesconfig.ui.pageflow.model.PageflowPage;
-import org.eclipse.jst.jsf.facesconfig.ui.pageflow.util.PageflowModelManager;
-
-/**
- * This class is a singleton adpater to create the directed graph for the
- * specified pageflow model or update the location information of pageflow model
- * according to directed graph layout algorithms.
- *
- * @author Xiao-guang Zhang
- */
-public class PageflowLayoutManager {
- /** node's default size */
- private static final int NODE_DEFAULT_WIDTH = 50;
-
- private static final int NODE_DEFAULT_HEIGHT = 50;
-
- /**
- * the margin of the top and left , and margin between each connnected
- * directed graph.
- */
- private static final int X_SPACE = 50;
-
- private static final int Y_SPACE = 50;
-
- /** node's default padding */
- private static final int DEFAULT_PADDING = 30;
-
- private static PageflowLayoutManager manager;
-
- private Map copiedLinks = null;
-
- /**
- * constructor of PageflowDirectedGraphAdapter
- *
- */
- private PageflowLayoutManager() {
- // no external instantiation
- }
-
- /**
- * return the singleton instance of PageflowDirectedGraphAdapter
- *
- * @return - the singleton instance of PageflowDirectedGraphAdapter
- */
- static public PageflowLayoutManager getInstance() {
- if (manager == null) {
- manager = new PageflowLayoutManager();
- }
- return manager;
- }
-
- /**
- * layout pageflow using directed graph layout algorithms
- *
- * @param pageflow -
- * pageflow model
- */
- public void layoutPageflow(Pageflow pageflow) {
- List selfLoopLinks = removeSelfLoopLinks(pageflow);
-
- List lstGraph = createGraphs(pageflow);
- for (Iterator iter = lstGraph.iterator(); iter.hasNext();) {
- DirectedGraph graph = (DirectedGraph) iter.next();
- new DirectedGraphLayout().visit(graph);// .visit(graph);
- }
- updatePageflow(lstGraph);
-
- if (selfLoopLinks != null) {
- addSelfLoopLinks(pageflow, selfLoopLinks);
- }
- }
-
- /**
- * remove the self loop links from pageflow, because the layout algorithm
- * does not allow it.
- *
- * @param pageflow
- * @return
- */
- private List removeSelfLoopLinks(Pageflow pageflow) {
- List selfLoopLinks = new ArrayList();
-
- if (pageflow.getLinks() != null) {
- for (Iterator iter = pageflow.getLinks().iterator(); iter.hasNext();) {
- PageflowLink link = (PageflowLink) iter.next();
-
- if (link.getSource() == link.getTarget()) {
- iter.remove();
- link.getBendPoints().clear();
- selfLoopLinks.add(link);
- }
- }
- }
- return selfLoopLinks;
- }
-
- /**
- * add back the self loop links with updated bendpoints.
- *
- * @param pageflow
- * @param selfLoopLinks
- */
- private void addSelfLoopLinks(Pageflow pageflow, List selfLoopLinks) {
- if (pageflow.getLinks() != null && selfLoopLinks != null
- && selfLoopLinks.size() > 0) {
- EList links = pageflow.getLinks();
- for (Iterator iter = selfLoopLinks.iterator(); iter.hasNext();) {
- PageflowLink link = (PageflowLink) iter.next();
- updateSelfLoopLink(link);
- links.add(link);
- }
- }
- }
-
- /**
- * Update the bendpoints of the self loop link Follow the following style:
- *
- * LeftTop-Top | | Left----Node
- *
- * @param selfLoopLink
- */
- public static void updateSelfLoopLink(PageflowLink selfLoopLink) {
- PageflowNode sourceNode = selfLoopLink.getSource();
- Rectangle rectNode = getPageflowNodeBounds(sourceNode);
-
- EList outLinks = sourceNode.getOutlinks();
- if (outLinks != null && outLinks.size() > 0) {
- for (Iterator iter = outLinks.iterator(); iter.hasNext();) {
- PageflowLink anotherSelfLoopLink = (PageflowLink) iter.next();
- if (anotherSelfLoopLink != selfLoopLink
- && anotherSelfLoopLink.getTarget() == sourceNode) {
- rectNode = getFitnessRectangle(rectNode,
- anotherSelfLoopLink);
- }
- }
- }
-
- PageflowFactory factory = PageflowModelManager.getFactory();
- PageflowLinkBendpoint bpTop = factory.createPFLinkBendpoint();
- PageflowLinkBendpoint bpLeftTop = factory.createPFLinkBendpoint();
- PageflowLinkBendpoint bpLeft = factory.createPFLinkBendpoint();
-
- bpTop.setD1Height(-rectNode.height);
- bpTop.setD2Height(-rectNode.height);
-
- bpLeftTop.setD1Width(-rectNode.width);
- bpLeftTop.setD1Height(-rectNode.height);
- bpLeftTop.setD2Width(-rectNode.width);
- bpLeftTop.setD2Height(-rectNode.height);
-
- bpLeft.setD1Width(-rectNode.width);
- bpLeft.setD2Width(-rectNode.width);
-
- selfLoopLink.getBendPoints().add(bpTop);
- selfLoopLink.getBendPoints().add(bpLeftTop);
- selfLoopLink.getBendPoints().add(bpLeft);
- }
-
- /**
- * Calculate the fitness rectangle without conflict with the existing self
- * loop's rectangle.
- *
- * @param rectDefault
- * @param anotherSelfLoopLink
- */
- private static Rectangle getFitnessRectangle(Rectangle rectDefault,
- PageflowLink anotherSelfLoopLink) {
- EList bendPoints = anotherSelfLoopLink.getBendPoints();
- if (bendPoints != null && bendPoints.size() > 0) {
- for (Iterator iterBendPoint = bendPoints.iterator(); iterBendPoint
- .hasNext();) {
- PageflowLinkBendpoint bendPoint = (PageflowLinkBendpoint) iterBendPoint
- .next();
- if (bendPoint.getD1Width() == -rectDefault.width
- && bendPoint.getD1Height() == -rectDefault.height) {
- rectDefault = new Rectangle(0, 0, rectDefault.width
- + DEFAULT_PADDING, rectDefault.height
- + DEFAULT_PADDING);
- break;
- }
- }
- }
- return rectDefault;
- }
-
- /**
- * get the pageflow node's bounds, the orginal point is (0,0)
- *
- * @param pfNode
- * @return
- */
- private static Rectangle getPageflowNodeBounds(PageflowNode pfNode) {
- return new Rectangle(0, 0, 64, 36);
- }
-
- /**
- * get the pageflow node's border rectangle
- *
- * @param pfNode
- * @return
- */
- private static Rectangle getPageflowNodeRectangle(PageflowNode pfNode) {
- Rectangle rectNode = null;
-
- Rectangle bounds = getPageflowNodeBounds(pfNode);
-
- rectNode = new Rectangle(pfNode.getX(), pfNode.getY(), bounds.width,
- bounds.height);
-
- return rectNode;
- }
-
- /**
- * create the connected subgraphs for the pageflow model, because there
- * maybe more than one connected graph in one pageflow definition.
- *
- * @param pageflow -
- * Pageflow model
- * @return - the connected subgraphs
- */
- private List createGraphs(Pageflow pageflow) {
- /** the connected subgraphs */
- List lstGraph = null;
-
- if (pageflow != null) {
- // Graph is not connected totally.
- DirectedGraph graph = null;
- HashMap nodesMap = new HashMap();
-
- NodeList nodes = new NodeList();
- EdgeList edges = new EdgeList();
-
- // get all nodes in the pageflow
- List pfNodes = pageflow.getNodes();
- if (pfNodes != null) {
- for (Iterator iter = pfNodes.iterator(); iter.hasNext();) {
- PageflowNode pfNode = (PageflowNode) iter.next();
- Node node = new Node(pfNode);
- Rectangle rectNode = null;
- rectNode = getPageflowNodeBounds(pfNode);
- if (rectNode != null) {
- node.width = rectNode.width * 2;
- node.height = rectNode.height * 2;
- node.setPadding(new Insets(node.height, node.width,
- node.height, node.width));
- } else {
- node.width = NODE_DEFAULT_WIDTH;
- node.height = NODE_DEFAULT_HEIGHT;
- node.setPadding(new Insets(DEFAULT_PADDING));
- }
- nodesMap.put(pfNode, node);
- nodes.add(node);
- }
- }
- // get all edges in the pageflow
- List pfLinks = pageflow.getLinks();
- for (Iterator iter = pfLinks.iterator(); iter.hasNext();) {
- PageflowLink link = (PageflowLink) iter.next();
- PageflowNode source = link.getSource();
- PageflowNode target = link.getTarget();
- Node sourceNode = (Node) nodesMap.get(source);
- Node targetNode = (Node) nodesMap.get(target);
-
- if (sourceNode != null && targetNode != null) {
- Edge edge = new Edge(sourceNode, targetNode);
- edges.add(edge);
- }
- }
-
- graph = new DirectedGraph();
-
- graph.nodes = nodes;
- graph.edges = edges;
-
- // get the connected subgraphs.
- lstGraph = new ArrayList();
- lstGraph.add(graph);// ..getConnectedSubGraphs();
- }
- return lstGraph;
- }
-
- /**
- * update the pageflow according to layout results which are stored in the
- * connected subgraphs
- *
- * @param lstGraph -
- * connected subgraphs
- *
- */
- private void updatePageflow(List lstGraph) {
- // y coordiantion of the subgraph's start point
- int topSubGraph = 0;
-
- for (Iterator iter = lstGraph.iterator(); iter.hasNext();) {
- // sub graph's bottom
- int bottomSubGraph = 0;
- DirectedGraph graph = (DirectedGraph) iter.next();
- for (int i = 0; i < graph.nodes.size(); i++) {
- Node node = graph.nodes.getNode(i);
- if (!(node.data instanceof PageflowNode)) {
- continue;
- }
- PageflowNode pfNode = (PageflowNode) node.data;
- pfNode.setX(X_SPACE + node.y);
-
- pfNode.setY(Y_SPACE + node.x + topSubGraph);
-
- if ((Y_SPACE + node.x + topSubGraph) > bottomSubGraph) {
- bottomSubGraph = Y_SPACE + node.x + topSubGraph;
- }
- }
- topSubGraph = bottomSubGraph + Y_SPACE;
- }
- }
-
- /**
- * update new pageflow's layout using the existing one.
- * @param newPageflow
- * @param oldPageflow
- */
- public void updatePageflowLayout(Pageflow newPageflow, Pageflow oldPageflow) {
- List notUpdatedNodes = new ArrayList();
-
- copiedLinks = new HashMap();
-
- if (oldPageflow.getNodes().size() > 0) {
- for (Iterator iter = newPageflow.getNodes().iterator(); iter
- .hasNext();) {
- PageflowNode newNode = (PageflowNode) iter.next();
-
- if (!updatePageflowNode(newNode, oldPageflow)) {
- notUpdatedNodes.add(newNode);
- }
- }
- } else {
- notUpdatedNodes.addAll(newPageflow.getNodes());
- }
-
- if (oldPageflow.getLinks().size() > 0) {
- for (Iterator iter = newPageflow.getLinks().iterator(); iter
- .hasNext();) {
- PageflowLink newLink = (PageflowLink) iter.next();
-
- updatePFLink(newLink, oldPageflow);
- }
- }
-
- // if there are still some nodes which are not updated,
- // they should be check whether there are some layout conflict.
- if (notUpdatedNodes.size() > 0) {
- resolveConflict(newPageflow, notUpdatedNodes);
- }
-
- }
-
- /**
- * Update pageflow node using the same node
- *
- * @param object
- * @return - the old pageflow node.
- */
- private boolean updatePageflowNode(PageflowNode newNode,
- Pageflow oldPageflow) {
- for (Iterator iter = oldPageflow.getNodes().iterator(); iter.hasNext();) {
- PageflowNode oldNode = (PageflowNode) iter.next();
-
- if (oldNode instanceof PageflowPage
- && newNode instanceof PageflowPage) {
- if (((PageflowPage) oldNode).getPath().trim().equals(
- ((PageflowPage) newNode).getPath().trim())) {
- updatePageflowNode(newNode, oldNode);
- return true;
- }
- }
- }
- return false;
- }
-
- /**
- * Update pageflow node using the same node
- *
- * @param object
- */
- private void updatePageflowNode(PageflowNode newNode, PageflowNode node) {
- newNode.setX(node.getX());
- newNode.setY(node.getY());
- }
-
- /**
- * If there are conflict for the nodes, it will resolve it.
- *
- * @param newPageflow
- * @param notUpdatedNodes
- */
- private void resolveConflict(Pageflow newPageflow, List notUpdatedNodes) {
- for (Iterator iter = notUpdatedNodes.iterator(); iter.hasNext();) {
- resolveConflict(newPageflow, (PageflowNode) iter.next());
- }
- }
-
- /**
- * Resolve the layout conflict
- *
- * @param newPageflow
- * @param node
- */
- private void resolveConflict(Pageflow newPageflow, PageflowNode node) {
- Rectangle nodeRect = getPageflowNodeRectangle(node);
- boolean bModified = false;
- for (int i = 0, size = newPageflow.getNodes().size(); i < size; i++) {
- PageflowNode fixedNode = (PageflowNode) newPageflow.getNodes().get(
- i);
- if (node == fixedNode) {
- continue;
- }
- Rectangle fixedNodeRect = getPageflowNodeRectangle(fixedNode);
- if (fixedNodeRect.intersects(nodeRect)) {
- nodeRect.x += fixedNodeRect.width + X_SPACE;
- nodeRect.y += fixedNodeRect.height + Y_SPACE;
- bModified = true;
- }
- }
- if (bModified) {
- node.setX(nodeRect.x);
- node.setY(nodeRect.y);
- }
- }
-
- /**
- * Update the link using the same link in the old pageflow
- *
- * @param newLink
- * @param oldPageflow
- */
- private void updatePFLink(PageflowLink newLink, Pageflow oldPageflow) {
- for (Iterator iter = oldPageflow.getLinks().iterator(); iter.hasNext();) {
- PageflowLink oldLink = (PageflowLink) iter.next();
-
- if (copiedLinks.get(oldLink) != null) {
- continue;
- }
-
- if (isSameLink(newLink, oldLink)) {
- updatePFLink(newLink, oldLink);
- break;
- }
- }
- }
-
- /**
- * Check whether this two links in differnet pageflow are same or not.
- *
- * @param newLink
- * @param oldLink
- * @return
- */
- private boolean isSameLink(PageflowLink newLink, PageflowLink oldLink) {
- PageflowNode newSource = newLink.getSource();
- PageflowNode newTarget = newLink.getTarget();
-
- PageflowNode oldSource = oldLink.getSource();
- PageflowNode oldTarget = oldLink.getTarget();
-
- // Page-Page
- if (newSource instanceof PageflowPage
- && oldSource instanceof PageflowPage
- && newTarget instanceof PageflowPage
- && oldTarget instanceof PageflowPage) {
- if (((PageflowPage) newSource).getPath().trim().equalsIgnoreCase(
- ((PageflowPage) oldSource).getPath().trim())
- && ((PageflowPage) newTarget)
- .getPath()
- .trim()
- .equalsIgnoreCase(
- ((PageflowPage) oldTarget).getPath().trim())) {
- if ((newLink.getOutcome() == null && oldLink.getOutcome() == null)
- || (newLink.getOutcome() != null
- && oldLink.getOutcome() != null && newLink
- .getOutcome().trim().equals(
- oldLink.getOutcome().trim()))) {
- return true;
- }
- }
- }
-
- return false;
- }
-
- /**
- * Update the link using the same link
- *
- * @param nodesMap
- * @param object
- * @return
- */
- private PageflowLink updatePFLink(PageflowLink newLink, PageflowLink link) {
- PageflowFactory factory = PageflowModelManager.getFactory();
-
- newLink.getBendPoints().clear();
-
- for (Iterator iter = link.getBendPoints().iterator(); iter.hasNext();) {
- PageflowLinkBendpoint bendPoint = (PageflowLinkBendpoint) iter
- .next();
- PageflowLinkBendpoint newBendPoint = factory
- .createPFLinkBendpoint();
- newBendPoint.setD1Height(bendPoint.getD1Height());
- newBendPoint.setD1Width(bendPoint.getD1Width());
- newBendPoint.setD2Height(bendPoint.getD2Height());
- newBendPoint.setD2Width(bendPoint.getD2Width());
- newLink.getBendPoints().add(newBendPoint);
- }
-
- copiedLinks.put(link, link);
- return newLink;
- }
-
-}

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