package com.opensymphony.workflow.designer.actions;import java.awt.*;import java.util.Map;import java.util.Hashtable;import javax.swing.*;import com.opensymphony.workflow.designer.*;import com.opensymphony.workflow.designer.dnd.DragData;import com.opensymphony.workflow.loader.*;import org.jgraph.graph.GraphConstants;import org.jgraph.graph.AttributeMap;import org.jgraph.graph.DefaultPort;/** * @author Gulei */public class CellFactory{  public static WorkflowCell createCell(WorkflowDescriptor workflow, WorkflowGraphModel model, Point location, DragData data)  {    if(data.equals(DragData.JOIN))    {      return createJoin(workflow, model, location);    }    else if(data.equals(DragData.SPLIT))    {      return createSplit(workflow, model, location);    }    else if(data.equals(DragData.STEP))    {      return createStep(workflow, model, location);    }    return null;  }  public static StepCell createStep(WorkflowDescriptor workflow, WorkflowGraphModel model, Point location)  {    return createStep(workflow, null, model, location);  }  public static StepCell createStep(WorkflowDescriptor workflow, StepDescriptor step, WorkflowGraphModel model, Point location)  {    Map viewMap = new Hashtable();    // create new step    boolean exists = step != null;    if(step == null)    {      String name = JOptionPane.showInputDialog(ResourceManager.getString("step.add.name"));      if (name == null || name.trim().length() == 0)        return null;      step = DescriptorBuilder.createStep(name, Utils.getNextId(model.getContext()));      step.setParent(workflow);      workflow.addStep(step);    }    int index = 0;    StepCell cell = new StepCell(step);    DefaultPort port = new WorkflowPort(index++);    cell.add(port);    if(location != null)    {      Rectangle bounds = (Rectangle)cell.getAttributes().get(GraphConstants.BOUNDS);      bounds.x = location.x;      bounds.y = location.y;    }    int u = GraphConstants.PERMILLE;    // Top Left    AttributeMap map = new AttributeMap();    GraphConstants.setOffset(map, new Point(0, 0));    port = new WorkflowPort(index++);    cell.add(port);    viewMap.put(port, map);    // Top Center    map = new AttributeMap();    GraphConstants.setOffset(map, new Point(u / 2, 0));    port = new WorkflowPort(index++);    cell.add(port);    viewMap.put(port, map);    // Top Right    map = new AttributeMap();    GraphConstants.setOffset(map, new Point(u, 0));    port = new WorkflowPort(index++);    cell.add(port);    viewMap.put(port, map);    // Top Center    map = new AttributeMap();    GraphConstants.setOffset(map, new Point(0, u / 2));    port = new WorkflowPort(index++);    cell.add(port);    viewMap.put(port, map);    // Middle Right    map = new AttributeMap();    GraphConstants.setOffset(map, new Point(u, u / 2));    port = new WorkflowPort(index++);    cell.add(port);    viewMap.put(port, map);    // Bottom Left    map = new AttributeMap();    GraphConstants.setOffset(map, new Point(0, u));    port = new WorkflowPort(index++);    cell.add(port);    viewMap.put(port, map);    // Bottom Center    map = new AttributeMap();    GraphConstants.setOffset(map, new Point(u / 2, u));    port = new WorkflowPort(index++);    cell.add(port);    viewMap.put(port, map);    // Bottom Right    map = new AttributeMap();    GraphConstants.setOffset(map, new Point(u, u));    port = new WorkflowPort(index++);    cell.add(port);    viewMap.put(port, map);    model.insertStepCell(cell, viewMap, null, null);    if(!exists)    {      WorkflowDesigner.INSTANCE.navigator().reloadSteps(workflow);      WorkflowDesigner.INSTANCE.navigator().selectTreeNode(workflow, step);    }    return cell;  }  public static JoinCell createJoin(WorkflowDescriptor workflow, WorkflowGraphModel model, Point location)  {    JoinDescriptor join = DescriptorBuilder.createJoin(Utils.getNextId(model.getContext()));    join.setParent(workflow);    workflow.addJoin(join);    JoinCell cell = new JoinCell(join);    WorkflowPort port = new WorkflowPort();    cell.add(port);    Rectangle bounds = (Rectangle)cell.getAttributes().get(GraphConstants.BOUNDS);    bounds.x = location.x;    bounds.y = location.y;    model.insertJoinCell(cell, null, null, null);    		WorkflowDesigner.INSTANCE.navigator().reloadJoins(workflow);		WorkflowDesigner.INSTANCE.navigator().selectTreeNode(workflow, join);        return cell;  }  public static SplitCell createSplit(WorkflowDescriptor workflow, WorkflowGraphModel model, Point location)  {    SplitDescriptor split = DescriptorBuilder.createSplit(Utils.getNextId(model.getContext()));    split.setParent(workflow);    workflow.addSplit(split);    SplitCell cell = new SplitCell(split);    WorkflowPort port = new WorkflowPort();    cell.add(port);    Rectangle bounds = (Rectangle)cell.getAttributes().get(GraphConstants.BOUNDS);    bounds.x = location.x;    bounds.y = location.y;    model.insertSplitCell(cell, null, null, null);		WorkflowDesigner.INSTANCE.navigator().reloadSplits(workflow);		WorkflowDesigner.INSTANCE.navigator().selectTreeNode(workflow, split);	        return cell;  }}