org.activiti.bpmn

Class BpmnAutoLayout

java.lang.Object

org.activiti.bpmn.BpmnAutoLayout

public class BpmnAutoLayout
extends Object

Auto layouts a BpmnModel.

Author:

Joram Barrez

Field Summary

Fields

Modifier and Type	Field and Description
protected List<BoundaryEvent>	boundaryEvents
protected BpmnModel	bpmnModel
protected Object	cellParent
protected int	eventSize
protected int	gatewaySize
protected Map<String,Object>	generatedEdges
protected Map<String,Object>	generatedVertices
protected com.mxgraph.view.mxGraph	graph
protected Map<String,FlowElement>	handledFlowElements
protected Map<String,SequenceFlow>	sequenceFlows
protected int	subProcessMargin
protected int	taskHeight
protected int	taskWidth

Constructor Summary

Constructors

Constructor and Description
BpmnAutoLayout(BpmnModel bpmnModel)

Method Summary

Methods

Modifier and Type	Method and Description
protected GraphicInfo	createDiagramInterchangeInformation(FlowElement flowElement, int x, int y, int width, int height)
protected void	createDiagramInterchangeInformation(SequenceFlow sequenceFlow, List<com.mxgraph.util.mxPoint> waypoints)
protected void	createEventVertex(FlowElement flowElement)
protected void	createGatewayVertex(FlowElement flowElement)
protected void	ensureSequenceFlowIdSet(SequenceFlow sequenceFlow)
protected double	euclidianDistance(com.mxgraph.util.mxPoint point1, com.mxgraph.util.mxPoint point2)
void	execute()
protected void	generateActivityDiagramInterchangeElements()
protected void	generateDiagramInterchangeElements()
protected void	generateSequenceFlowDiagramInterchangeElements()
int	getEventSize()
int	getGatewaySize()
com.mxgraph.view.mxGraph	getGraph()
int	getSubProcessMargin()
int	getTaskHeight()
int	getTaskWidth()
protected void	handleActivity(FlowElement flowElement)
protected void	handleBoundaryEvents()
protected void	handleEvent(FlowElement flowElement)
protected void	handleSequenceFlow()
protected void	handleSequenceFlow(SequenceFlow sequenceFlow)
protected void	handleSubProcess(FlowElement flowElement)
protected void	layout(FlowElementsContainer flowElementsContainer)
protected List<com.mxgraph.util.mxPoint>	optimizeEdgePoints(List<com.mxgraph.util.mxPoint> unoptimizedPointsList)
void	setEventSize(int eventSize)
void	setGatewaySize(int gatewaySize)
void	setGraph(com.mxgraph.view.mxGraph graph)
void	setSubProcessMargin(int subProcessMargin)
void	setTaskHeight(int taskHeight)
void	setTaskWidth(int taskWidth)
protected void	translateNestedSubprocessElements(SubProcess subProcess)
protected void	translateNestedSubprocesses(Process process) Since subprocesses are autolayouted independently (see handleSubProcess(FlowElement)), the elements have x and y coordinates relative to the bounds of the subprocess (thinking the subprocess is on (0,0).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

bpmnModel

protected BpmnModel bpmnModel

eventSize

protected int eventSize

gatewaySize

protected int gatewaySize

taskWidth

protected int taskWidth

taskHeight

protected int taskHeight

subProcessMargin

protected int subProcessMargin

graph

protected com.mxgraph.view.mxGraph graph

cellParent

protected Object cellParent

sequenceFlows

protected Map<String,SequenceFlow> sequenceFlows

boundaryEvents

protected List<BoundaryEvent> boundaryEvents

handledFlowElements

protected Map<String,FlowElement> handledFlowElements

generatedVertices

protected Map<String,Object> generatedVertices

generatedEdges

protected Map<String,Object> generatedEdges

Constructor Detail

BpmnAutoLayout

public BpmnAutoLayout(BpmnModel bpmnModel)

Method Detail

execute

public void execute()

layout

protected void layout(FlowElementsContainer flowElementsContainer)

ensureSequenceFlowIdSet

protected void ensureSequenceFlowIdSet(SequenceFlow sequenceFlow)

handleSequenceFlow

protected void handleSequenceFlow(SequenceFlow sequenceFlow)

handleEvent

protected void handleEvent(FlowElement flowElement)

handleActivity

protected void handleActivity(FlowElement flowElement)

handleSubProcess

protected void handleSubProcess(FlowElement flowElement)

handleBoundaryEvents

protected void handleBoundaryEvents()

handleSequenceFlow

protected void handleSequenceFlow()

createEventVertex

protected void createEventVertex(FlowElement flowElement)

createGatewayVertex

protected void createGatewayVertex(FlowElement flowElement)

generateDiagramInterchangeElements

protected void generateDiagramInterchangeElements()

generateActivityDiagramInterchangeElements

protected void generateActivityDiagramInterchangeElements()

generateSequenceFlowDiagramInterchangeElements

protected void generateSequenceFlowDiagramInterchangeElements()

euclidianDistance

protected double euclidianDistance(com.mxgraph.util.mxPoint point1,
                       com.mxgraph.util.mxPoint point2)

optimizeEdgePoints

protected List<com.mxgraph.util.mxPoint> optimizeEdgePoints(List<com.mxgraph.util.mxPoint> unoptimizedPointsList)

createDiagramInterchangeInformation

protected GraphicInfo createDiagramInterchangeInformation(FlowElement flowElement,
                                              int x,
                                              int y,
                                              int width,
                                              int height)

createDiagramInterchangeInformation

protected void createDiagramInterchangeInformation(SequenceFlow sequenceFlow,
                                       List<com.mxgraph.util.mxPoint> waypoints)

translateNestedSubprocesses

protected void translateNestedSubprocesses(Process process)

Since subprocesses are autolayouted independently (see handleSubProcess(FlowElement)), the elements have x and y coordinates relative to the bounds of the subprocess (thinking the subprocess is on (0,0). This however, does not work for nested subprocesses, as they need to take in account the x and y coordinates for each of the parent subproceses. This method is to be called after fully layouting one process, since ALL elements need to have x and y.

translateNestedSubprocessElements

protected void translateNestedSubprocessElements(SubProcess subProcess)

getGraph

public com.mxgraph.view.mxGraph getGraph()

setGraph

public void setGraph(com.mxgraph.view.mxGraph graph)

getEventSize

public int getEventSize()

setEventSize

public void setEventSize(int eventSize)

getGatewaySize

public int getGatewaySize()

setGatewaySize

public void setGatewaySize(int gatewaySize)

getTaskWidth

public int getTaskWidth()

setTaskWidth

public void setTaskWidth(int taskWidth)

getTaskHeight

public int getTaskHeight()

setTaskHeight

public void setTaskHeight(int taskHeight)

getSubProcessMargin

public int getSubProcessMargin()

setSubProcessMargin

public void setSubProcessMargin(int subProcessMargin)