org.simantics.interop.update/src/org/simantics/interop/update/model/UpdateNode.java

   1 package org.simantics.interop.update.model;
   2
   3 import java.util.ArrayList;
   4 import java.util.Collections;
   5 import java.util.Comparator;
   6 import java.util.List;
   7
   8 import org.eclipse.jface.resource.ImageDescriptor;
   9 import org.simantics.db.ReadGraph;
  10 import org.simantics.db.Resource;
  11 import org.simantics.db.common.utils.NameUtils;
  12 import org.simantics.db.exception.DatabaseException;
  13 import org.simantics.layer0.Layer0;
  14
  15 public class UpdateNode {
  16
  17     private UpdateNode parent;
  18         private UpdateStatus status;
  19         private UpdateOp op;
  20         private Resource r;
  21         private String label;
  22         private boolean visible = true;
  23
  24
  25         private List<UpdateNode> children;
  26         /**
  27          *
  28          * @param resource old Resource if status is DELETED or EXISTS.
  29          * @param status
  30          * @param changes
  31          */
  32         public UpdateNode(ReadGraph g, UpdateStatus status, UpdateOp op) throws DatabaseException{
  33
  34                 this.status = status;
  35                 this.op = op;
  36                 this.r = op.getResource();
  37                 init(g);
  38         }
  39
  40         public UpdateNode(ReadGraph g, UpdateStatus status, Resource r) throws DatabaseException {
  41
  42                 this.status = status;
  43                 this.op = null;
  44                 this.r = r;
  45                 init(g);
  46         }
  47
  48         protected void init(ReadGraph g) throws DatabaseException {
  49                 this.label = getLabel(g, r);
  50         }
  51
  52         public Resource getResource() {
  53                 return r;
  54         }
  55
  56         public Resource getParentResource(ReadGraph g) throws DatabaseException {
  57                 if (op != null) {
  58                         Resource parent = op.getParentResource(g);
  59                         if (parent != null)
  60                                 return parent;
  61                 }
  62                 Layer0 l0 = Layer0.getInstance(g);
  63                 return g.getPossibleObject(r, l0.PartOf);
  64         }
  65
  66         public void setStatus(UpdateStatus status) {
  67                 this.status = status;
  68         }
  69
  70         public UpdateStatus getStatus() {
  71                 return status;
  72         }
  73
  74         @SuppressWarnings("unchecked")
  75         public List<UpdateNode> getChildren() {
  76                 if (children == null)
  77                         return Collections.EMPTY_LIST;
  78                 return children;
  79         }
  80
  81         public void addChild(UpdateNode node) {
  82                 if (children == null)
  83                         children = new ArrayList<UpdateNode>(2);
  84                 children.add(node);
  85                 node.parent = this;
  86                 if (op != null && node.op != null) {
  87                         if (!op.getSubOps().contains(node.op)) {
  88                                 op.addSubOp(node.op);
  89                                 node.op.addParentOp(op);
  90                         }
  91                 }
  92         }
  93
  94         public void sort() {
  95                 if (children == null)
  96                         return;
  97                 Collections.sort(this.children, new Comparator<UpdateNode>() {
  98                         @Override
  99                         public int compare(UpdateNode o1, UpdateNode o2) {
 100                                 return o1.getLabel().compareTo(o2.getLabel());
 101                         }
 102                 });
 103         }
 104
 105         public ImageDescriptor getImage(ReadGraph graph) throws DatabaseException {
 106                 return null;
 107         }
 108
 109         public String getLabel() {
 110                 return label;
 111         }
 112
 113         @Override
 114         public String toString() {
 115                 return label;
 116         }
 117
 118         protected String getLabel(ReadGraph graph, Resource r) throws DatabaseException {
 119                 String label = NameUtils.getSafeLabel(graph, r);
 120                 if (label.length() == 0)
 121                         label = NameUtils.getSafeName(graph, r);
 122
 123                 return label;
 124         }
 125
 126
 127         public UpdateOp getOp() {
 128                 return op;
 129         }
 130
 131         public boolean isVisible() {
 132                 return visible;
 133         }
 134
 135         public void setVisible(boolean visible) {
 136                 this.visible = visible;
 137                 if (op != null)
 138                         op.visible = visible;
 139                 if (visible) {
 140                     if (parent != null && !parent.visible)
 141                         parent.setVisible(true);
 142                 } else {
 143                         if (children != null)
 144                                 for (UpdateNode n : children)
 145                                         n.setVisible(false);
 146                 }
 147         }
 148
 149         public void setAllVisible(boolean visible) {
 150                 this.visible = visible;
 151                 if (op != null)
 152                         op.visible = visible;
 153                 if (children != null)
 154                         for (UpdateNode n : children)
 155                                 n.setAllVisible(visible);
 156         }
 157
 158 }