Examples of com.mxgraph.view.mxGraph

com.mxgraph.view.mxGraph
Implements a graph object that allows to create diagrams from a graph model and stylesheet.
Images
To create an image from a graph, use the following code for a given XML document (doc) and File (file): Image img = mxCellRenderer.createBufferedImage( graph, null, 1, Color.WHITE, false, null); ImageIO.write(img, "png", file); If the XML is given as a string rather than a document, the document can be obtained using mxUtils.parse. This class fires the following events: mxEvent.ROOT fires if the root in the model has changed. This event has no properties. mxEvent.ALIGN_CELLS fires between begin- and endUpdate in alignCells. The cells and align properties contain the respective arguments that were passed to alignCells. mxEvent.FLIP_EDGE fires between begin- and endUpdate in flipEdge. The edge property contains the edge passed to flipEdge. mxEvent.ORDER_CELLS fires between begin- and endUpdate in orderCells. The cells and back properties contain the respective arguments that were passed to orderCells. mxEvent.CELLS_ORDERED fires between begin- and endUpdate in cellsOrdered. The cells and back arguments contain the respective arguments that were passed to cellsOrdered. mxEvent.GROUP_CELLS fires between begin- and endUpdate in groupCells. The group, cells and border arguments contain the respective arguments that were passed to groupCells. mxEvent.UNGROUP_CELLS fires between begin- and endUpdate in ungroupCells. The cells property contains the array of cells that was passed to ungroupCells. mxEvent.REMOVE_CELLS_FROM_PARENT fires between begin- and endUpdate in removeCellsFromParent. The cells property contains the array of cells that was passed to removeCellsFromParent. mxEvent.ADD_CELLS fires between begin- and endUpdate in addCells. The cells, parent, index, source and target properties contain the respective arguments that were passed to addCells. mxEvent.CELLS_ADDED fires between begin- and endUpdate in cellsAdded. The cells, parent, index, source, target and absolute properties contain the respective arguments that were passed to cellsAdded. mxEvent.REMOVE_CELLS fires between begin- and endUpdate in removeCells. The cells and includeEdges arguments contain the respective arguments that were passed to removeCells. mxEvent.CELLS_REMOVED fires between begin- and endUpdate in cellsRemoved. The cells argument contains the array of cells that was removed. mxEvent.SPLIT_EDGE fires between begin- and endUpdate in splitEdge. The edge property contains the edge to be splitted, the cells, newEdge, dx and dy properties contain the respective arguments that were passed to splitEdge. mxEvent.TOGGLE_CELLS fires between begin- and endUpdate in toggleCells. The show, cells and includeEdges properties contain the respective arguments that were passed to toggleCells. mxEvent.FOLD_CELLS fires between begin- and endUpdate in foldCells. The collapse, cells and recurse properties contain the respective arguments that were passed to foldCells. mxEvent.CELLS_FOLDED fires between begin- and endUpdate in cellsFolded. The collapse, cells and recurse properties contain the respective arguments that were passed to cellsFolded. mxEvent.UPDATE_CELL_SIZE fires between begin- and endUpdate in updateCellSize. The cell and ignoreChildren properties contain the respective arguments that were passed to updateCellSize. mxEvent.RESIZE_CELLS fires between begin- and endUpdate in resizeCells. The cells and bounds properties contain the respective arguments that were passed to resizeCells. mxEvent.CELLS_RESIZED fires between begin- and endUpdate in cellsResized. The cells and bounds properties contain the respective arguments that were passed to cellsResized. mxEvent.MOVE_CELLS fires between begin- and endUpdate in moveCells. The cells, dx, dy, clone, target and location properties contain the respective arguments that were passed to moveCells. mxEvent.CELLS_MOVED fires between begin- and endUpdate in cellsMoved. The cells, dx, dy and disconnect properties contain the respective arguments that were passed to cellsMoved. mxEvent.CONNECT_CELL fires between begin- and endUpdate in connectCell. The edge, terminal and source properties contain the respective arguments that were passed to connectCell. mxEvent.CELL_CONNECTED fires between begin- and endUpdate in cellConnected. The edge, terminal and source properties contain the respective arguments that were passed to cellConnected. mxEvent.REPAINT fires if a repaint was requested by calling repaint. The region property contains the optional mxRectangle that was passed to repaint to define the dirty region.

    {
      if (e.getSource() instanceof mxGraphComponent)
      {
        mxGraphComponent graphComponent = (mxGraphComponent) e
            .getSource();
        mxGraph graph = graphComponent.getGraph();
        mxIGraphModel model = graph.getModel();


        Object source = null;
        Object target = null;


        Object[] cells = graph.getSelectionCells();


        for (int i = 0; i < cells.length; i++)
        {
          if (model.isVertex(cells[i]))
          {
            if (source == null)
            {
              source = cells[i];
            }
            else if (target == null)
            {
              target = cells[i];
            }
          }


          if (source != null && target != null)
          {
            break;
          }
        }


        if (source != null && target != null)
        {
          int steps = graph.getChildEdges(graph.getDefaultParent()).length;
          Object[] path = mxGraphAnalysis.getInstance()
              .getShortestPath(graph, source, target,
                  new mxDistanceCostFunction(), steps,
                  directed);
          graph.setSelectionCells(path);
        }
        else
        {
          JOptionPane.showMessageDialog(graphComponent,
              mxResources.get("noSourceAndTargetSelected"));

View Full Code Here

     * 
     */
    protected void openVdx(BasicGraphEditor editor, File file,
        Document document)
    {
      mxGraph graph = editor.getGraphComponent().getGraph();


      // Replaces file extension with .mxe
      String filename = file.getName();
      filename = filename.substring(0, filename.length() - 4) + ".mxe";


      if (new File(filename).exists()
          && JOptionPane.showConfirmDialog(editor,
              mxResources.get("overwriteExistingFile")) != JOptionPane.YES_OPTION)
      {
        return;
      }


      ((mxGraphModel) graph.getModel()).clear();
      mxVdxCodec.decode(document, graph);
      editor.getGraphComponent().zoomAndCenter();
      editor.setCurrentFile(new File(lastDir + "/" + filename));
    }

View Full Code Here

     *
     */
    protected void openGD(BasicGraphEditor editor, File file,
        mxGdDocument document)
    {
      mxGraph graph = editor.getGraphComponent().getGraph();


      // Replaces file extension with .mxe
      String filename = file.getName();
      filename = filename.substring(0, filename.length() - 4) + ".mxe";


      if (new File(filename).exists()
          && JOptionPane.showConfirmDialog(editor,
              mxResources.get("overwriteExistingFile")) != JOptionPane.YES_OPTION)
      {
        return;
      }


      ((mxGraphModel) graph.getModel()).clear();
      mxGdCodec.decode(document, graph);
      editor.getGraphComponent().zoomAndCenter();
      editor.setCurrentFile(new File(lastDir + "/" + filename));
    }

View Full Code Here

      {
        if (!editor.isModified()
            || JOptionPane.showConfirmDialog(editor,
                mxResources.get("loseChanges")) == JOptionPane.YES_OPTION)
        {
          mxGraph graph = editor.getGraphComponent().getGraph();


          if (graph != null)
          {
            String wd = (lastDir != null) ? lastDir : System
                .getProperty("user.dir");


            JFileChooser fc = new JFileChooser(wd);


            // Adds file filter for supported file format
            DefaultFileFilter defaultFilter = new DefaultFileFilter(
                ".mxe", mxResources.get("allSupportedFormats")
                    + " (.mxe, .png, .vdx)")
            {


              public boolean accept(File file)
              {
                String lcase = file.getName().toLowerCase();


                return super.accept(file)
                    || lcase.endsWith(".png")
                    || lcase.endsWith(".vdx");
              }
            };
            fc.addChoosableFileFilter(defaultFilter);


            fc.addChoosableFileFilter(new DefaultFileFilter(".mxe",
                "mxGraph Editor " + mxResources.get("file")
                    + " (.mxe)"));
            fc.addChoosableFileFilter(new DefaultFileFilter(".png",
                "PNG+XML  " + mxResources.get("file")
                    + " (.png)"));


            // Adds file filter for VDX import
            fc.addChoosableFileFilter(new DefaultFileFilter(".vdx",
                "XML Drawing  " + mxResources.get("file")
                    + " (.vdx)"));


            // Adds file filter for GD import
            fc.addChoosableFileFilter(new DefaultFileFilter(".txt",
                "Graph Drawing  " + mxResources.get("file")
                    + " (.txt)"));


            fc.setFileFilter(defaultFilter);


            int rc = fc.showDialog(null,
                mxResources.get("openFile"));


            if (rc == JFileChooser.APPROVE_OPTION)
            {
              lastDir = fc.getSelectedFile().getParent();


              try
              {
                if (fc.getSelectedFile().getAbsolutePath()
                    .toLowerCase().endsWith(".png"))
                {
                  openXmlPng(editor, fc.getSelectedFile());
                }
                else if (fc.getSelectedFile().getAbsolutePath()
                    .toLowerCase().endsWith(".txt"))
                {
                  mxGdDocument document = new mxGdDocument();
                  document.parse(mxUtils.readFile(fc
                      .getSelectedFile()
                      .getAbsolutePath()));
                  openGD(editor, fc.getSelectedFile(),
                      document);
                }
                else
                {
                  Document document = mxUtils
                      .parseXml(mxUtils.readFile(fc
                          .getSelectedFile()
                          .getAbsolutePath()));


                  if (fc.getSelectedFile().getAbsolutePath()
                      .toLowerCase().endsWith(".vdx"))
                  {
                    openVdx(editor, fc.getSelectedFile(),
                        document);
                  }
                  else
                  {
                    mxCodec codec = new mxCodec(document);
                    codec.decode(
                        document.getDocumentElement(),
                        graph.getModel());
                    editor.setCurrentFile(fc
                        .getSelectedFile());
                  }


                  resetEditor(editor);

View Full Code Here

    /**
     * 
     */
    public void actionPerformed(ActionEvent e)
    {
      mxGraph graph = mxGraphActions.getGraph(e);


      if (graph != null)
      {
        graph.toggleCellStyles(key, defaultValue);
      }
    }

View Full Code Here

    /**
     * 
     */
    public void actionPerformed(ActionEvent e)
    {
      mxGraph graph = mxGraphActions.getGraph(e);


      if (graph != null && !graph.isSelectionEmpty())
      {
        graph.getModel().beginUpdate();
        try
        {
          // Checks the orientation of the alignment to use the correct constants
          if (labelPosition.equals(mxConstants.ALIGN_LEFT)
              || labelPosition.equals(mxConstants.ALIGN_CENTER)
              || labelPosition.equals(mxConstants.ALIGN_RIGHT))
          {
            graph.setCellStyles(mxConstants.STYLE_LABEL_POSITION,
                labelPosition);
            graph.setCellStyles(mxConstants.STYLE_ALIGN, alignment);
          }
          else
          {
            graph.setCellStyles(
                mxConstants.STYLE_VERTICAL_LABEL_POSITION,
                labelPosition);
            graph.setCellStyles(mxConstants.STYLE_VERTICAL_ALIGN,
                alignment);
          }
        }
        finally
        {
          graph.getModel().endUpdate();
        }
      }
    }

View Full Code Here

    /**
     * 
     */
    public void actionPerformed(ActionEvent e)
    {
      mxGraph graph = mxGraphActions.getGraph(e);


      if (graph != null && !graph.isSelectionEmpty())
      {
        graph.setCellStyle(value);
      }
    }

View Full Code Here

    /**
     * 
     */
    public void actionPerformed(ActionEvent e)
    {
      mxGraph graph = mxGraphActions.getGraph(e);


      if (graph != null && !graph.isSelectionEmpty())
      {
        graph.setCellStyles(key, value);
      }
    }

View Full Code Here

     */
    public void actionPerformed(ActionEvent e)
    {
      if (e.getSource() instanceof Component)
      {
        mxGraph graph = mxGraphActions.getGraph(e);


        if (graph != null && !graph.isSelectionEmpty())
        {
          String value = (String) JOptionPane.showInputDialog(
              (Component) e.getSource(),
              mxResources.get("value"), message,
              JOptionPane.PLAIN_MESSAGE, null, null, "");


          if (value != null)
          {
            if (value.equals(mxConstants.NONE))
            {
              value = null;
            }


            graph.setCellStyles(key, value);
          }
        }
      }
    }

View Full Code Here

    /**
     * 
     */
    public void actionPerformed(ActionEvent e)
    {
      mxGraph graph = mxGraphActions.getGraph(e);


      if (graph != null && !graph.isSelectionEmpty())
      {
        graph.alignCells(align);
      }
    }

View Full Code Here

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Examples of com.mxgraph.view.mxGraph

Images

Related Classes of com.mxgraph.view.mxGraph