Examples of mxGraphView

com.mxgraph.view.mxGraphView
Implements a view for the graph. This class is in charge of computing the absolute coordinates for the relative child geometries, the points for perimeters and edge styles and keeping them cached in cell states for faster retrieval. The states are updated whenever the model or the view state (translate, scale) changes. The scale and translate are honoured in the bounds. This class fires the following events: mxEvent.UNDO fires after the root was changed in setCurrentRoot. The edit property contains the mxUndoableEdit which contains the mxCurrentRootChange. mxEvent.SCALE_AND_TRANSLATE fires after the scale and transle have been changed in scaleAndTranslate. The scale, previousScale, translate and previousTranslate properties contain the new and previous scale and translate, respectively. mxEvent.SCALE fires after the scale was changed in setScale. The scale and previousScale properties contain the new and previous scale. mxEvent.TRANSLATE fires after the translate was changed in setTranslate. The translate and previousTranslate properties contain the new and previous value for translate. mxEvent.UP and mxEvent.DOWN fire if the current root is changed by executing a mxCurrentRootChange. The event name depends on the location of the root in the cell hierarchy with respect to the current root. The root and previous properties contain the new and previous root, respectively.

Examples of com.mxgraph.view.mxGraphView


      mxIGraphModel model = graph.getModel();
      TreeNode prev = null;
      Object[] out = graph.getEdges(cell, parent, invert, !invert, false,
          true);
      mxGraphView view = graph.getView();


      for (int i = 0; i < out.length; i++)
      {
        Object edge = out[i];


        if (!isEdgeIgnored(edge))
        {
          // Resets the points on the traversed edge
          if (resetEdges)
          {
            setEdgePoints(edge, null);
          }


          if (edgeRouting)
          {
            setEdgeStyleEnabled(edge, false);
            setEdgePoints(edge, null);
          }


          // Checks if terminal in same swimlane
          mxCellState state = view.getState(edge);
          Object target = (state != null) ? state
              .getVisibleTerminal(invert) : view
              .getVisibleTerminal(edge, invert);
          TreeNode tmp = dfs(target, parent, visited);


          if (tmp != null && model.getGeometry(target) != null)
          {

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Examples of com.mxgraph.view.mxGraphView

              List<Map<Object, Object>> bellmanFord = mxTraversal.bellmanFord(aGraph, startVertex);


              Map<Object, Object> distanceMap = bellmanFord.get(0);
              Map<Object, Object> parentMap = bellmanFord.get(1);
              mxCostFunction costFunction = aGraph.getGenerator().getCostFunction();
              mxGraphView view = aGraph.getGraph().getView();


              System.out.println("Bellman-Ford traversal test");
              Object[] vertices = aGraph.getChildVertices(aGraph.getGraph().getDefaultParent());
              int vertexNum = vertices.length;


              System.out.print("Distances from " + costFunction.getCost(view.getState(startVertex)) + " to [ ");


              for (int i = 0; i < vertexNum; i++)
              {
                System.out.print(i + ":" + Math.round((Double) distanceMap.get(vertices[i]) * 100.0) / 100.0 + " ");
              }


              System.out.println("]");


              System.out.print("Parents are [ ");


              for (int i = 0; i < vertexNum; i++)
              {
                System.out.print(i + ":" + costFunction.getCost(view.getState(parentMap.get(vertices[i]))) + " ");
              }


              System.out.println("]");


              if ((Double) distanceMap.get(endVertex) != Double.MAX_VALUE)
              {
                System.out.println("The shortest distance from vertex " + costFunction.getCost(view.getState(startVertex))
                    + " to vertex " + (Double) costFunction.getCost(view.getState(endVertex)) + " is: "
                    + distanceMap.get(endVertex));
              }
              else
              {
                System.out.println("The selected vertices aren't connected.");

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Examples of com.mxgraph.view.mxGraphView

    graph.getModel().addListener(mxEvent.CHANGE, updateHandler);


    // Repaint after the following events is handled via
    // mxGraph.repaint-events
    // The respective handlers are installed in mxGraph.setView
    mxGraphView view = graph.getView();


    view.addListener(mxEvent.SCALE, updateHandler);
    view.addListener(mxEvent.TRANSLATE, updateHandler);
    view.addListener(mxEvent.SCALE_AND_TRANSLATE, updateHandler);
    view.addListener(mxEvent.UP, updateHandler);
    view.addListener(mxEvent.DOWN, updateHandler);


    graph.addPropertyChangeListener(viewChangeHandler);


    // Resets the zoom policy if the scale changes
    graph.getView().addListener(mxEvent.SCALE, scaleHandler);

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Examples of com.mxgraph.view.mxGraphView

   */
  public SchemaGraphComponent(mxGraph graph)
  {
    super(graph);


    mxGraphView graphView = new mxGraphView(graph)
    {


      /**
       * 
       */

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Examples of com.mxgraph.view.mxGraphView

  /**
   * 
   */
  public void zoom(double factor)
  {
    mxGraphView view = graph.getView();
    double newScale = (double) ((int) (view.getScale() * 100 * factor)) / 100;


    if (newScale != view.getScale() && newScale > 0.04)
    {
      mxPoint translate = (pageVisible && centerPage) ? getPageTranslate(newScale)
          : new mxPoint();
      graph.getView().scaleAndTranslate(newScale, translate.getX(),
          translate.getY());


      if (keepSelectionVisibleOnZoom && !graph.isSelectionEmpty())
      {
        getGraphControl().scrollRectToVisible(
            view.getBoundingBox(graph.getSelectionCells())
                .getRectangle());
      }
      else
      {
        maintainScrollBar(true, factor, centerZoom);

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Examples of com.mxgraph.view.mxGraphView

  /**
   * 
   */
  public void zoomTo(final double newScale, final boolean center)
  {
    mxGraphView view = graph.getView();
    final double scale = view.getScale();


    mxPoint translate = (pageVisible && centerPage) ? getPageTranslate(newScale)
        : new mxPoint();
    graph.getView().scaleAndTranslate(newScale, translate.getX(),
        translate.getY());

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Examples of com.mxgraph.view.mxGraphView

    add(editor.bind("Redo", new HistoryAction(false),
        "/com/mxgraph/examples/swing/images/redo.gif"));


    addSeparator();


    final mxGraphView view = editor.getGraphComponent().getGraph()
        .getView();
    final JComboBox zoomCombo = new JComboBox(new Object[] { "400%",
        "200%", "150%", "100%", "75%", "50%", mxResources.get("page"),
        mxResources.get("width"), mxResources.get("actualSize") });
    zoomCombo.setEditable(true);
    zoomCombo.setMinimumSize(new Dimension(75, 0));
    zoomCombo.setPreferredSize(new Dimension(75, 0));
    zoomCombo.setMaximumSize(new Dimension(75, 100));
    zoomCombo.setMaximumRowCount(9);
    add(zoomCombo);


    // Sets the zoom in the zoom combo the current value
    mxIEventListener scaleTracker = new mxIEventListener()
    {
      /**
       * 
       */
      public void invoke(Object sender, mxEventObject evt)
      {
        ignoreZoomChange = true;


        try
        {
          zoomCombo.setSelectedItem((int) Math.round(100 * view
              .getScale())
              + "%");
        }
        finally
        {
          ignoreZoomChange = false;
        }
      }
    };


    // Installs the scale tracker to update the value in the combo box
    // if the zoom is changed from outside the combo box
    view.getGraph().getView().addListener(mxEvent.SCALE, scaleTracker);
    view.getGraph().getView().addListener(mxEvent.SCALE_AND_TRANSLATE,
        scaleTracker);


    // Invokes once to sync with the actual zoom value
    scaleTracker.invoke(null, null);

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Examples of com.mxgraph.view.mxGraphView

        final double newScale = (double) ((int) (Math.min(scaleX,
            scaleY) * 20)) / 20;


        if (newScale > 0)
        {
          mxGraphView graphView = graph.getView();
          final double scale = graphView.getScale();
          mxPoint translate = (centerPage) ? getPageTranslate(newScale)
              : new mxPoint();
          graphView.scaleAndTranslate(newScale, translate.getX(),
              translate.getY());


          // Causes two repaints, see zoomTo for more details
          final double factor = newScale / scale;

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Examples of com.mxgraph.view.mxGraphView

      {
        canvas.setScale(graph.getView().getScale());
        canvas.setTranslate(0, 0);


        mxIGraphModel model = graph.getModel();
        mxGraphView view = graph.getView();


        Rectangle hit = new Rectangle(x, y, 1, 1);
        int childCount = model.getChildCount(parent);


        for (int i = childCount - 1; i >= 0; i--)
        {
          Object cell = model.getChildAt(parent, i);
          Object result = getCellAt(x, y, hitSwimlaneContent, cell);


          if (result != null)
          {
            return result;
          }
          else if (graph.isCellVisible(cell))
          {
            mxCellState state = view.getState(cell);


            if (state != null
                && canvas.intersects(this, hit, state)
                && (!graph.isSwimlane(cell)
                    || hitSwimlaneContent || (transparentSwimlaneContent && !canvas

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Examples of com.mxgraph.view.mxGraphView

        {
          canvas.setScale(graph.getView().getScale());
          canvas.setTranslate(0, 0);


          mxIGraphModel model = graph.getModel();
          mxGraphView view = graph.getView();


          int childCount = model.getChildCount(parent);


          for (int i = 0; i < childCount; i++)
          {
            Object cell = model.getChildAt(parent, i);
            mxCellState state = view.getState(cell);


            if (graph.isCellVisible(cell) && state != null)
            {
              if (canvas.contains(this, rect, state))
              {

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