Examples of com.mxgraph.model.mxCell

com.mxgraph.model.mxCell
Cells are the elements of the graph model. They represent the state of the groups, vertices and edges in a graph.
Edge Labels
Using the x- and y-coordinates of a cell's geometry it is possible to position the label on edges on a specific location on the actual edge shape as it appears on the screen. The x-coordinate of an edge's geometry is used to describe the distance from the center of the edge from -1 to 1 with 0 being the center of the edge and the default value. The y-coordinate of an edge's geometry is used to describe the absolute, orthogonal distance in pixels from that point. In addition, the mxGeometry.offset is used as a absolute offset vector from the resulting point. The width and height of an edge geometry are ignored. To add more than one edge label, add a child vertex with a relative geometry. The x- and y-coordinates of that geometry will have the same semantiv as the above for edge labels.


    for (Object vertex : vertexes)
    {
      List<mxGmlNode> Gmlnodes = gmlGraph.getNodes();


      mxCell v = (mxCell) vertex;
      String id = v.getId();


      mxGmlNode gmlNode = new mxGmlNode(id, null);
      addNodeData(gmlNode, v);
      Gmlnodes.add(gmlNode);
      gmlGraph.setNodes(Gmlnodes);

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      Object parent, mxGraph graph)
  {
    Object[] edges = graph.getChildEdges(parent);
    for (Object edge : edges)
    {
      mxCell e = (mxCell) edge;
      mxCell source = (mxCell) e.getSource();
      mxCell target = (mxCell) e.getTarget();


      String sourceName = "";
      String targetName = "";
      String sourcePort = "";
      String targetPort = "";
      sourceName = source != null ? source.getId() : "";
      targetName = target != null ? target.getId() : "";


      //Get the graph view that contains the states
      mxGraphView view = graph.getView();
      mxPoint sourceConstraint = null;
      mxPoint targetConstraint = null;

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  /**
   * Constructs a new cell codec.
   */
  public mxCellCodec()
  {
    this(new mxCell(), null, new String[] { "parent", "source", "target" },
        null);
  }

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   */
  public Node afterEncode(mxCodec enc, Object obj, Node node)
  {
    if (obj instanceof mxCell)
    {
      mxCell cell = (mxCell) obj;


      if (cell.getValue() instanceof Node)
      {
        // Wraps the graphical annotation up in the
        // user object (inversion) by putting the
        // result of the default encoding into
        // a clone of the user object (node type 1)
        // and returning this cloned user object.
        Element tmp = (Element) node;
        node = enc.getDocument().importNode((Node) cell.getValue(),
            true);
        node.appendChild(tmp);


        // Moves the id attribute to the outermost
        // XML node, namely the node which denotes

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  {
    Element inner = (Element) node;


    if (obj instanceof mxCell)
    {
      mxCell cell = (mxCell) obj;
      String classname = getName();
      String nodeName = node.getNodeName();
      
      // Handles aliased names
      if (!nodeName.equals(classname))
      {
        String tmp = mxCodecRegistry.aliases.get(nodeName);
        
        if (tmp != null)
        {
          nodeName = tmp;
        }
      }


      if (!nodeName.equals(classname))
      {
        // Passes the inner graphical annotation node to the
        // object codec for further processing of the cell.
        Node tmp = inner.getElementsByTagName(classname).item(0);


        if (tmp != null && tmp.getParentNode() == node)
        {
          inner = (Element) tmp;


          // Removes annotation and whitespace from node
          Node tmp2 = tmp.getPreviousSibling();


          while (tmp2 != null && tmp2.getNodeType() == Node.TEXT_NODE)
          {
            Node tmp3 = tmp2.getPreviousSibling();


            if (tmp2.getTextContent().trim().length() == 0)
            {
              tmp2.getParentNode().removeChild(tmp2);
            }


            tmp2 = tmp3;
          }


          // Removes more whitespace
          tmp2 = tmp.getNextSibling();


          while (tmp2 != null && tmp2.getNodeType() == Node.TEXT_NODE)
          {
            Node tmp3 = tmp2.getPreviousSibling();


            if (tmp2.getTextContent().trim().length() == 0)
            {
              tmp2.getParentNode().removeChild(tmp2);
            }


            tmp2 = tmp3;
          }


          tmp.getParentNode().removeChild(tmp);
        }
        else
        {
          inner = null;
        }


        // Creates the user object out of the XML node
        Element value = (Element) node.cloneNode(true);
        cell.setValue(value);
        String id = value.getAttribute("id");


        if (id != null)
        {
          cell.setId(id);
          value.removeAttribute("id");
        }
      }
      else
      {
        cell.setId(((Element) node).getAttribute("id"));
      }


      // Preprocesses and removes all Id-references
      // in order to use the correct encoder (this)
      // for the known references to cells (all).

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   * @param cells
   * @return Returns a new group cell.
   */
  public Object createGroupCell(Object[] cells)
  {
    mxCell group = new mxCell("", new mxGeometry(), null);
    group.setVertex(true);
    group.setConnectable(false);


    return group;
  }

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   */
  public Object createVertex(Object parent, String id, Object value,
      double x, double y, double width, double height, String style)
  {
    mxGeometry geometry = new mxGeometry(x, y, width, height);
    mxCell vertex = new mxCell(value, geometry, style);


    vertex.setId(id);
    vertex.setVertex(true);
    vertex.setConnectable(true);


    return vertex;
  }

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   * @return Returns the new edge to be inserted.
   */
  public Object createEdge(Object parent, String id, Object value,
      Object source, Object target, String style)
  {
    mxCell edge = new mxCell(value, new mxGeometry(), style);


    edge.setId(id);
    edge.setEdge(true);
    edge.getGeometry().setRelative(true);


    return edge;
  }

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    public Object createEdge(Object parent, String id, Object value,
        Object source, Object target, String style)
    {
      if (edgeTemplate != null)
      {
        mxCell edge = (mxCell) cloneCells(new Object[] { edgeTemplate })[0];
        edge.setId(id);


        return edge;
      }


      return super.createEdge(parent, id, value, source, target, style);

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    mxGeometry geometry = new mxGeometry(0, 0, width, height);
    geometry.setTerminalPoint(new mxPoint(0, height), true);
    geometry.setTerminalPoint(new mxPoint(width, 0), false);
    geometry.setRelative(true);


    mxCell cell = new mxCell(value, geometry, style);
    cell.setEdge(true);


    addTemplate(name, icon, cell);
  }

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Examples of com.mxgraph.model.mxCell

Edge Labels

Related Classes of com.mxgraph.model.mxCell