org.flowable.engine.impl.bpmn.diagram

Class ProcessDiagramLayoutFactory

java.lang.Object

org.flowable.engine.impl.bpmn.diagram.ProcessDiagramLayoutFactory

public class ProcessDiagramLayoutFactory
extends Object

Provides positions and dimensions of elements in a process diagram as provided by RepositoryService.getProcessDiagram(String).

Author:

Falko Menge

Constructor Summary

Constructors

Constructor and Description
ProcessDiagramLayoutFactory()

Method Summary

Modifier and Type	Method and Description
protected Map<String,DiagramNode>	fixFlowNodePositionsIfModelFromAdonis(Document bpmnModel, Map<String,DiagramNode> elementBoundsFromBpmnDi)
DiagramLayout	getBpmnProcessDiagramLayout(Document bpmnModel, InputStream imageStream) Provides positions and dimensions of elements in a BPMN process diagram as provided by RepositoryService.getProcessDiagram(String).
protected DiagramNode	getDiagramBoundsFromBpmnDi(Document bpmnModel)
protected DiagramNode	getDiagramBoundsFromImage(BufferedImage image, int offsetTop, int offsetBottom)
protected DiagramNode	getDiagramBoundsFromImage(InputStream imageStream)
protected DiagramNode	getDiagramBoundsFromImage(InputStream imageStream, int offsetTop, int offsetBottom)
protected Map<String,DiagramNode>	getElementBoundsFromBpmnDi(Document bpmnModel)
DiagramLayout	getProcessDiagramLayout(InputStream bpmnXmlStream, InputStream imageStream) Provides positions and dimensions of elements in a process diagram as provided by RepositoryService.getProcessDiagram(String).
protected boolean	isExportedFromAdonis50(Document bpmnModel)
protected DiagramNode	parseBounds(Element boundsElement)
protected Document	parseXml(InputStream bpmnXmlStream)
protected DiagramNode	transformBoundsForImage(DiagramNode diagramBoundsImage, DiagramNode diagramBoundsXml, DiagramNode elementBounds)
protected Map<String,DiagramElement>	transformBoundsForImage(DiagramNode diagramBoundsImage, DiagramNode diagramBoundsXml, Map<String,DiagramNode> listOfBounds)

Methods inherited from class java.lang.Object

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

Constructor Detail

ProcessDiagramLayoutFactory

public ProcessDiagramLayoutFactory()

Method Detail

getProcessDiagramLayout

public DiagramLayout getProcessDiagramLayout(InputStream bpmnXmlStream,
                                             InputStream imageStream)

Provides positions and dimensions of elements in a process diagram as provided by RepositoryService.getProcessDiagram(String). Currently, it only supports BPMN 2.0 models.

Parameters:

bpmnXmlStream - BPMN 2.0 XML file

imageStream - BPMN 2.0 diagram in PNG format (JPEG and other formats supported by ImageIO may also work)

Returns:

Layout of the process diagram; null when parameter imageStream is null

getBpmnProcessDiagramLayout

public DiagramLayout getBpmnProcessDiagramLayout(Document bpmnModel,
                                                 InputStream imageStream)

Provides positions and dimensions of elements in a BPMN process diagram as provided by RepositoryService.getProcessDiagram(String).

Parameters:

bpmnModel - BPMN 2.0 XML document

imageStream - BPMN 2.0 diagram in PNG format (JPEG and other formats supported by ImageIO may also work)

Returns:

Layout of the process diagram; null when parameter imageStream is null

parseXml

protected Document parseXml(InputStream bpmnXmlStream)

getDiagramBoundsFromBpmnDi

protected DiagramNode getDiagramBoundsFromBpmnDi(Document bpmnModel)

getDiagramBoundsFromImage

protected DiagramNode getDiagramBoundsFromImage(InputStream imageStream)

getDiagramBoundsFromImage

protected DiagramNode getDiagramBoundsFromImage(InputStream imageStream,
                                                int offsetTop,
                                                int offsetBottom)

getDiagramBoundsFromImage

protected DiagramNode getDiagramBoundsFromImage(BufferedImage image,
                                                int offsetTop,
                                                int offsetBottom)

getElementBoundsFromBpmnDi

protected Map<String,DiagramNode> getElementBoundsFromBpmnDi(Document bpmnModel)

parseBounds

protected DiagramNode parseBounds(Element boundsElement)

transformBoundsForImage

protected Map<String,DiagramElement> transformBoundsForImage(DiagramNode diagramBoundsImage,
                                                             DiagramNode diagramBoundsXml,
                                                             Map<String,DiagramNode> listOfBounds)

transformBoundsForImage

protected DiagramNode transformBoundsForImage(DiagramNode diagramBoundsImage,
                                              DiagramNode diagramBoundsXml,
                                              DiagramNode elementBounds)

fixFlowNodePositionsIfModelFromAdonis

protected Map<String,DiagramNode> fixFlowNodePositionsIfModelFromAdonis(Document bpmnModel,
                                                                        Map<String,DiagramNode> elementBoundsFromBpmnDi)

isExportedFromAdonis50

protected boolean isExportedFromAdonis50(Document bpmnModel)