Examples of com.mxgraph.model.mxGeometry

com.mxgraph.model.mxGeometry
Represents the geometry of a cell. For vertices, the geometry consists of the x- and y-location, as well as the width and height. For edges, the geometry either defines the source- and target-terminal, or it defines the respective terminal points. For edges, if the geometry is relative (default), then the x-coordinate 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, and the y-coordinate is used to describe the absolute, orthogonal distance in pixels from that point. In addition, the offset is used as an absolute offset vector from the resulting point.

    if (targetState != null)
    {
      ((mxICell) targetState.getCell()).insertEdge(cell, false);
    }


    mxGeometry geo = graph.getCellGeometry(previewState.getCell());


    geo.setTerminalPoint(startPoint, true);
    geo.setTerminalPoint(transformScreenPoint(x, y), false);


    revalidate(previewState);
    fireEvent(new mxEventObject(mxEvent.CONTINUE, "event", e, "x", x, "y",
        y));

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      else
      {
        // Clones the cell state and updates the absolute points using
        // the current state of this handle. This is required for
        // computing the correct perimeter points and edge style.
        mxGeometry geometry = graphComponent.getGraph()
            .getCellGeometry(state.getCell());
        mxCellState clone = (mxCellState) state.clone();
        List<mxPoint> points = geometry.getPoints();
        mxGraphView view = clone.getView();


        if (isSource || isTarget)
        {
          marker.process(e);

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   * Moves the edges control point with the given index to the given point.
   */
  protected void movePoint(Object edge, int pointIndex, mxPoint point)
  {
    mxIGraphModel model = graphComponent.getGraph().getModel();
    mxGeometry geometry = model.getGeometry(edge);


    if (geometry != null)
    {
      model.beginUpdate();
      try
      {
        geometry = (mxGeometry) geometry.clone();


        if (isSource(index) || isTarget(index))
        {
          connect(edge, null, isSource(index), false);
          geometry.setTerminalPoint(point, isSource(index));
        }
        else
        {
          List<mxPoint> pts = geometry.getPoints();


          if (pts == null)
          {
            pts = new ArrayList<mxPoint>();
            geometry.setPoints(pts);
          }


          if (pts != null)
          {
            if (pointIndex <= pts.size())

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   */
  protected void moveLabelTo(mxCellState edgeState, double x, double y)
  {
    mxGraph graph = graphComponent.getGraph();
    mxIGraphModel model = graph.getModel();
    mxGeometry geometry = model.getGeometry(state.getCell());


    if (geometry != null)
    {
      geometry = (mxGeometry) geometry.clone();


      // Resets the relative location stored inside the geometry
      mxPoint pt = graph.getView().getRelativePoint(edgeState, x, y);
      geometry.setX(pt.getX());
      geometry.setY(pt.getY());


      // Resets the offset inside the geometry to find the offset
      // from the resulting point
      double scale = graph.getView().getScale();
      geometry.setOffset(new mxPoint(0, 0));
      pt = graph.getView().getPoint(edgeState, geometry);
      geometry.setOffset(new mxPoint(Math.round((x - pt.getX()) / scale),
          Math.round((y - pt.getY()) / scale)));


      model.setGeometry(edgeState.getCell(), geometry);
    }
  }

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            .setX(state.getOrigin().getX() + offset.getX());
        state.getOrigin()
            .setY(state.getOrigin().getY() + offset.getY());
      }


      mxGeometry geo = graph.getCellGeometry(state.getCell());


      if (geo != null)
      {
        if (!model.isEdge(state.getCell()))
        {
          mxPoint origin = state.getOrigin();
          offset = geo.getOffset();


          if (offset == null)
          {
            offset = EMPTY_POINT;
          }


          if (geo.isRelative() && pState != null)
          {
            if (model.isEdge(pState.getCell()))
            {
              mxPoint orig = getPoint(pState, geo);
              
              if (orig != null)
              {
                origin.setX(origin.getX()
                    + (orig.getX() / scale) - pState.getOrigin().getX()
                    - translate.getX());
                origin.setY(origin.getY()
                    + (orig.getY() / scale) - pState.getOrigin().getY()
                    - translate.getY());
              }
            }
            else
            {
              origin.setX(origin.getX() + geo.getX()
                  * pState.getWidth() / scale + offset.getX());
              origin.setY(origin.getY() + geo.getY()
                  * pState.getHeight() / scale
                  + offset.getY());
            }
          }
          else
          {
            state.setAbsoluteOffset(new mxPoint(scale
                * offset.getX(), scale * offset.getY()));
            origin.setX(origin.getX() + geo.getX());
            origin.setY(origin.getY() + geo.getY());
          }
        }


        state.setX(scale
            * (translate.getX() + state.getOrigin().getX()));
        state.setY(scale
            * (translate.getY() + state.getOrigin().getY()));
        state.setWidth(scale * geo.getWidth());
        state.setHeight(scale * geo.getHeight());


        if (model.isVertex(state.getCell()))
        {
          updateVertexState(state, geo);
        }

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      // labels or no wrapping is applied if the width is set to 0
      mxRectangle vertexBounds = state;


      if (graph.getModel().isEdge(cell))
      {
        mxGeometry geo = graph.getCellGeometry(cell);


        if (geo != null && geo.getWidth() > 0)
        {
          vertexBounds = new mxRectangle(0, 0, geo.getWidth()
              * this.getScale(), 0);
        }
        else
        {
          vertexBounds = null;

View Full Code Here

    }


    if (pt == null && terminal == null)
    {
      mxPoint orig = edge.getOrigin();
      mxGeometry geo = graph.getCellGeometry(edge.getCell());
      pt = geo.getTerminalPoint(source);


      if (pt != null)
      {
        pt = new mxPoint(scale
            * (translate.getX() + pt.getX() + orig.getX()), scale

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   * for the given edge state.
   */
  public mxPoint getRelativePoint(mxCellState edgeState, double x, double y)
  {
    mxIGraphModel model = graph.getModel();
    mxGeometry geometry = model.getGeometry(edgeState.getCell());


    if (geometry != null)
    {
      int pointCount = edgeState.getAbsolutePointCount();


      if (geometry.isRelative() && pointCount > 1)
      {
        double totalLength = edgeState.getLength();
        double[] segments = edgeState.getSegments();


        // Works which line segment the point of the label is closest to

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     * Prints out some useful information about the cell in the tooltip.
     */
    public String getToolTipForCell(Object cell)
    {
      String tip = "<html>";
      mxGeometry geo = getModel().getGeometry(cell);
      mxCellState state = getView().getState(cell);


      if (getModel().isEdge(cell))
      {
        tip += "points={";


        if (geo != null)
        {
          List<mxPoint> points = geo.getPoints();


          if (points != null)
          {
            Iterator<mxPoint> it = points.iterator();


            while (it.hasNext())
            {
              mxPoint point = it.next();
              tip += "[x=" + numberFormat.format(point.getX())
                  + ",y=" + numberFormat.format(point.getY())
                  + "],";
            }


            tip = tip.substring(0, tip.length() - 1);
          }
        }


        tip += "}<br>";
        tip += "absPoints={";


        if (state != null)
        {


          for (int i = 0; i < state.getAbsolutePointCount(); i++)
          {
            mxPoint point = state.getAbsolutePoint(i);
            tip += "[x=" + numberFormat.format(point.getX())
                + ",y=" + numberFormat.format(point.getY())
                + "],";
          }


          tip = tip.substring(0, tip.length() - 1);
        }


        tip += "}";
      }
      else
      {
        tip += "geo=[";


        if (geo != null)
        {
          tip += "x=" + numberFormat.format(geo.getX()) + ",y="
              + numberFormat.format(geo.getY()) + ",width="
              + numberFormat.format(geo.getWidth()) + ",height="
              + numberFormat.format(geo.getHeight());
        }


        tip += "]<br>";
        tip += "state=[";

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    for (int i = 0; i < numRows; i++)
    {
      for (int j = 0; j < numColumns; j++)
      {
        Object currVertex = vertices[i * numColumns + j];
        mxGeometry geometry = model.getGeometry(currVertex);
        geometry.setX(j * xSpacing);
        geometry.setY(i * ySpacing);
      }
    }
  };

View Full Code Here

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